CN111006040A

CN111006040A - Constant temperature tap convenient to unpick and wash constant temperature case

Info

Publication number: CN111006040A
Application number: CN201911410642.8A
Authority: CN
Inventors: 薛涵韵
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-04-14

Abstract

The invention discloses a constant temperature faucet convenient for disassembling and washing a constant temperature valve core, which comprises a shell, wherein a valve body is arranged in the shell, one end of the valve body is provided with a constant temperature valve core cavity, a constant temperature valve core is arranged in the constant temperature valve core cavity, the outer end of the constant temperature valve core extends out of a temperature adjusting valve rod, a temperature adjusting hand wheel is fixed on the temperature adjusting valve rod, a pressing sleeve is sleeved between the constant temperature valve core and the temperature adjusting hand wheel, the inner end face of the pressing sleeve is positioned at the outer side of the radial face of the constant temperature valve core and can be abutted and pressed against the radial face, the outer peripheral face of the inner end of the pressing sleeve is provided with a thread. The utility model provides a constant temperature tap convenient to unpick and wash thermostatic cartridge, it is comparatively convenient to maintain, can dismantle thermostatic cartridge from the valve body under the condition of not dismantling the hand wheel that adjusts the temperature, washs.

Description

Constant temperature tap convenient to unpick and wash constant temperature case

Technical Field

The invention relates to bathroom equipment, in particular to a thermostatic faucet with a thermostatic valve core convenient to disassemble and wash.

Background

The thermostatic faucet is a device for adjusting the outlet water temperature of mixed water. Thermostatic faucet generally includes shell, valve body and thermostatic cartridge and temperature regulation hand wheel, and thermostatic cartridge installs in the valve body, and the shell cladding is in the valve body outside, and the temperature regulation valve rod on the thermostatic cartridge is in the shell tip, and the hand wheel of adjusting the temperature is installed on the valve rod hand. When the thermostatic valve core is used, the mixing proportion of cold water and hot water can be automatically adjusted by the thermostatic valve core, and the outlet water temperature is ensured to be maintained at the set temperature.

The clean degree requirement of thermostatic cartridge to rivers is higher, and in order to avoid the tiny particulate matter that exists in the aquatic to cause the jamming to the piston of thermostatic cartridge inside, all be provided with the filter screen on the water inlet two and the water inlet one of thermostatic cartridge, it is inside to stop that tiny particulate matter enters into thermostatic cartridge. In long-time use, the attached tiny particulate matter of aquatic can gather in the filter screen outside, influences thermostatic cartridge's the ability of intaking, needs to dismantle thermostatic cartridge from the casing this moment, washs.

As shown in the Chinese patent with the patent number of 201721804761.8, most of current thermostatic valve cores are connected in a thermostatic chamber on a valve body through threads attached to the outer side of the thermostatic valve cores, a temperature regulating handwheel is sleeved on the outer side of a temperature regulating valve rod of the thermostatic valve core and fixed at the end part of the temperature regulating valve rod through screws, and the end part of the thermostatic valve core is covered by the inner end of a handwheel, so that the whole faucet is more attractive.

Set up like this, dismantle the thermostatic cartridge from the valve body and wash the time comparatively troublesome. Firstly, a screw fixed on a temperature adjusting valve rod needs to be screwed out, then a temperature adjusting hand wheel is taken down from the end part of the thermostatic valve core, then the thermostatic valve core is screwed down from a valve body, and then a filter screen on the outer side of the thermostatic valve core can be cleaned. After the thermostatic valve core is cleaned, the thermostatic valve core and the temperature adjusting hand wheel are installed back, and the operation steps are troublesome.

In addition, generally, the shell is marked with temperature scales, and the temperature adjusting hand wheel is provided with an indicating arrow. When leaving the factory, the temperature indicated by the indicating arrow can be the outlet water temperature of the tap by adjusting the circumferential relative positions of the temperature adjusting hand wheel and the temperature adjusting valve rod. After the existing thermostatic faucet is disassembled, the circumferential position of the thermostatic valve core can be changed due to the deviation of the tightening torque when the thermostatic valve core is installed again. When the temperature adjusting hand wheel is installed again, the relative position of the temperature adjusting hand wheel and the temperature adjusting valve rod can be changed, so that the water outlet temperature of the constant temperature faucet is not corresponding to the water outlet temperature indicated by the indicating arrow, and the use is influenced.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide the thermostatic faucet with the thermostatic valve core convenient to disassemble and wash, which is convenient to maintain, and can be used for disassembling the thermostatic valve core from the valve body and cleaning the thermostatic valve core under the condition of not disassembling the temperature adjusting hand wheel.

The technical purpose of the invention is realized by the following technical scheme: the utility model provides a constant temperature tap convenient to unpick and wash thermostatic cartridge, which comprises a housin, install the valve body in the casing, valve body one end is provided with thermostatic cartridge chamber, thermostatic cartridge installs thermostatic cartridge in the thermostatic cartridge chamber, thermostatic cartridge outer end stretches out there is the temperature control valve rod, be fixed with the hand wheel that adjusts the temperature on the valve rod that adjusts the temperature, the cover is equipped with between thermostatic cartridge and the hand wheel that adjusts the temperature and presses the cover, press the cover interior terminal surface to be in the radial surface outside of thermostatic cartridge and can conflict the radial surface and compress tightly, screw connection between the inner outer peripheral face of pressure cover and the thermostatic cartridge intracavity wall, press the cover outer end side to be provided.

Through the technical scheme, during installation, the inner end of the pressing sleeve is fixedly connected with the valve body through the mutually matched threads or spiral grooves and the clamping block, the inner end of the pressing sleeve is tightly pressed on the outer end radial surface of the thermostatic valve core, and the thermostatic valve core is tightly pressed in the thermostatic valve core cavity, so that the thermostatic valve core is fixed. The clamping part is arranged between the shell and the temperature adjusting hand wheel, so that when the temperature adjusting hand wheel is not detached, the mounting tool can be clamped outside the pressing sleeve, the pressing sleeve is driven to rotate, and the pressing sleeve and the valve body can be locked or loosened through threads. In the process of installing the thermostatic valve core into the thermostatic valve core cavity, the pressing sleeve rotates, and the pressing sleeve pushes the thermostatic valve core to move into the thermostatic valve core cavity while moving into the thermostatic valve core cavity. Meanwhile, the temperature adjusting hand wheel is fixed on the temperature adjusting valve rod of the thermostatic valve core, and the thermostatic valve core also drives the temperature adjusting hand wheel to move towards the thermostatic valve core side when moving towards the thermostatic valve core cavity, so that the integral installation is realized.

Correspondingly, during disassembly, the pressing sleeve is rotated to move towards the outer side of the constant-temperature valve core cavity, the outer end of the pressing sleeve is abutted against the inner end of the temperature adjusting hand wheel to drive the temperature adjusting hand wheel to move outwards, the temperature adjusting hand wheel is fixed on the temperature adjusting valve rod of the constant-temperature valve core, and when the temperature adjusting hand wheel moves outwards, the constant-temperature valve core can be driven to move outwards, so that the constant-temperature valve core is automatically separated from the constant-temperature valve core cavity, and the constant-temperature valve core is disassembled.

The pressure sleeve is arranged between the inner side of the end face of the temperature adjusting hand wheel and the surface of the outer end of the thermostatic valve element in a sleeved mode, the thermostatic valve element is pressed in the thermostatic valve element cavity to be fixed through the pressure sleeve, threads are not required to be arranged on the side face of the thermostatic valve element, the thermostatic valve element is not required to be rotated when the thermostatic valve element is installed, the temperature adjusting hand wheel is required to be detached from the outer end of the thermostatic valve element firstly in the process of detaching the thermostatic valve element, then the thermostatic valve element can be rotated to detach the thermostatic valve element, the detaching process of the temperature adjusting hand wheel is reduced, and the thermostatic valve.

Preferably, the clamping part is a tooth socket or a clamping plane arranged on the outer side surface of the outer end of the pressing sleeve.

Through above-mentioned technical scheme, the setting in tooth's socket or block plane can be held tightly or the chucking is pressed the cover with hand or open-ended spanner, then rotates and presses the cover, realizes locking or dismantling the installation of thermostatic valve core.

Preferably, the outer diameter of the outer end of the pressing sleeve is larger than the outer diameter of the temperature adjusting hand wheel, and the inner diameter of the outer end of the pressing sleeve is smaller than the outer diameter of the temperature adjusting hand wheel.

Through above-mentioned technical scheme, when needs use annular instrument cover to establish and rotate when pressing the cover in the block portion outside, annular instrument can follow the outer pot head of temperature regulation hand wheel to press on the block portion in the cover outer end outside to drive and press the cover to rotate. The inner diameter of the outer end of the pressing sleeve is smaller than the outer diameter of the temperature adjusting hand wheel, so that the outer end face of the pressing sleeve and the inner end of the temperature adjusting hand wheel can be abutted, and when the pressing sleeve rotates towards the outer side of the thermostatic valve core cavity, the thermostatic valve core can be driven to move outwards through the temperature adjusting hand wheel.

Preferably, a circumferential positioning block is arranged on the outer side surface of the thermostatic valve core, and a circumferential positioning groove is formed in the cavity of the thermostatic valve core.

Through the technical scheme, the circumferential position of the thermostatic valve core in the thermostatic valve core can be effectively determined by the circumferential positioning blocks and the circumferential positioning grooves. When the shell and the temperature adjusting hand wheel are respectively provided with scales and indicating arrows, the water outlet temperature adjusted by the thermostatic valve core after being disassembled, cleaned and re-installed can still be consistent with the actual water outlet temperature. In addition, the positioning block and the positioning groove are arranged, so that the thermostatic valve core integrally rotates in the thermostatic valve core mounting cavity when the temperature adjusting hand wheel rotates.

Preferably, the thermostatic valve element comprises a valve casing, a water inlet II and a water inlet I are formed in the side face of the valve casing, a filter screen is sleeved on the outer sides of the water inlet II and the water inlet I, a temperature adjusting valve rod, a temperature adjusting sliding block, a thermosensitive element, a reset spring and a current limiting assembly are arranged in the valve casing, the thermosensitive element is a paraffin temperature sensing assembly or a memory alloy spring, the current limiting assembly is a piston, the upper end face and the lower end face of the piston are respectively matched with the water control surface I and the water control surface II on the valve casing to control the water inlet proportion of cold water and hot water, or the current.

Through above-mentioned technical scheme, temperature sensing element and current-limiting component have multiple selection, have different thermoregulation characteristics after different temperature sensing element and current-limiting component combination, use the water supply pipe left side for the cold water right side for hot water or the water supply pipe left side is for the hot water right side for cold water, all can select the thermostatic cartridge of different regulation characteristics in order to accord with thermostatic faucet's operating condition, realize thermostatic control.

Preferably, the peripheral face of the upper end of the temperature regulating valve rod is provided with a circumferential clamping groove, the temperature regulating hand wheel is sleeved on the circumferential clamping groove, and the temperature regulating hand wheel is axially fixed on the end face of the temperature regulating valve rod through a screw.

Through above-mentioned technical scheme, the hand wheel that adjusts the temperature can and adjust the temperature realize between the valve rod that adjusts the temperature circumference fixed through the tooth's socket, drive the valve rod that adjusts the temperature and rotate, adjust the temperature. Meanwhile, the temperature adjusting hand wheel can be fixed on the end face of the temperature adjusting valve rod through the screw, so that the temperature adjusting hand wheel and the temperature adjusting valve rod are in a coaxial state, and the temperature adjusting hand wheel and the temperature adjusting valve rod cannot move relatively in the axis direction.

Preferably, the valve body is rectangular form, the valve body includes half left portion and half right portion, half left portion outer end is provided with switch case chamber, switch case is installed to the switch case intracavity, the thermostatic cartridge chamber sets up half right portion outer end, half left portion and half right portion grafting cooperation, be equipped with the water inlet one and the mixed water delivery port with switch case chamber intercommunication on half left portion, be provided with the water inlet two with thermostatic cartridge chamber intercommunication on the half right portion, half left end sets up and overflows passageway one and mixed water passageway one, half right portion left end is provided with and overflows passageway two and mixed water passageway two, it pegs graft cooperation intercommunication thermostatic cartridge chamber and switch case chamber with overflowing passageway one and overflow passageway two, mixed water passageway one and mixed water passageway two are pegged graft and are cooperated intercommunication thermostatic cartridge chamber and switch case chamber, grafting department still is provided with the retaining member.

Through above-mentioned technical scheme, the valve body divide into half left and half right, and the length of every part is all shorter to make things convenient for the processing of every part, make half left and half right have higher machining precision. Meanwhile, the connection between the left half part and the right half part is realized through the insertion between the first overflowing channel and the second overflowing channel and the insertion between the first mixed water channel and the second mixed water channel, so that the left half part and the right half part can be fixedly connected while water passing is realized. Meanwhile, the sealing ring can be conveniently arranged at the inserting position by adopting inserting and matching, so that the sealing performance is improved.

Preferably, one end part of the mixed water channel is a sleeve part, the two end parts of the mixed water channel are plug parts, the plug parts are inserted into the sleeve part, the insertion holes are formed in the sleeve part, the insertion grooves are formed in the plug parts, and the locking pieces penetrate into the insertion holes and are clamped in the insertion grooves.

Through above-mentioned technical scheme, when the switch case is in the closed condition, mix water passageway and two intercommunications of water inlet, have higher water pressure, jack and slot setting can avoid mixing water passageway one and mixing water passageway two to break away from grafting state each other under hydraulic effect on mixing water passageway one and mixing water passageway two for valve body overall structure is more stable.

Preferably, a cold water ring groove is formed between the outer side surface of the thermostatic valve core and the inner wall of the thermostatic valve core cavity, a cold water outlet is further formed in the right half part of the thermostatic valve core, and the water inlet II and the cold water outlet are both communicated with the cold water ring groove.

Through the technical scheme, the arrangement of the cold water outlet can simplify the connecting pipeline of the device and the water heater. When in connection, the cold water outlet and the hot water outlet are directly connected with the cold water inlet and the hot water outlet on the water heater. The water inlet II is directly connected with a cold water supply pipeline, and the hot water outlet is directly connected with the shower head, so that the cold water supply pipeline does not need to be respectively connected with an electric water heater and the device, and the structure is simplified.

Compared with the prior art, the invention has the beneficial effects that: the pressure sleeve is arranged on the outer end of the thermostatic valve element in a sleeved mode, the thermostatic valve element is fixed through the pressure sleeve, so that when the thermostatic valve element is disassembled, a temperature adjusting hand wheel fixed on a temperature adjusting valve rod of the thermostatic valve element does not need to be disassembled, the pressure sleeve is directly rotated, the thermostatic valve element can be taken out of a thermostatic valve element cavity, and the thermostatic device is convenient to disassemble and assemble in the cleaning and maintaining process.

Drawings

FIG. 1 is an exploded view of the first embodiment;

FIG. 2 is a first perspective view of the thermostatic cartridge, the pressing sleeve and the temperature-adjusting hand wheel of the first embodiment after assembly;

FIG. 3 is a second perspective view of the first embodiment of the present invention after the thermostatic cartridge, the pressing sleeve and the temperature adjusting handwheel are assembled;

FIG. 4 is a schematic cross-sectional view of the thermostatic cartridge installed in the right half of the first embodiment;

FIG. 5 is an exploded view of the valve body according to the first embodiment;

FIG. 6 is a perspective view of the outer end of the left half of the first embodiment;

FIG. 7 is a perspective view of the outer end of the right half of the first embodiment;

FIG. 8 is a schematic cross-sectional view of a thermostatic cartridge according to a second embodiment;

FIG. 9 is a schematic cross-sectional view of a thermostatic cartridge in a third embodiment;

FIG. 10 is an enlarged view taken at A in FIG. 9;

FIG. 11 is a perspective view of a fourth intermediate pressure sleeve according to an embodiment;

FIG. 12 is an exploded view of the fifth embodiment;

FIG. 13 is a schematic cross-sectional view of the right half of the fifth embodiment;

FIG. 14 is a schematic sectional view of a horizontal section of the valve body in the fifth embodiment;

FIG. 15 is a schematic cross-sectional view of a longitudinal cross-section of the valve body in the fifth embodiment;

FIG. 16 is a perspective view of the sixth embodiment;

fig. 17 is an exploded view of the valve body in the sixth embodiment;

FIG. 18 is a front view of the left end of the valve body in the sixth embodiment;

FIG. 19 is a schematic cross-sectional view taken at E-E of FIG. 18;

FIG. 20 is a schematic cross-sectional view taken at B-B of FIG. 18;

FIG. 21 is a perspective view of the seventh embodiment;

FIG. 22 is an exploded view of the seventh embodiment;

FIG. 23 is a schematic sectional view of the seventh embodiment;

FIG. 24 is a perspective view of a valve body according to the seventh embodiment;

FIG. 25 is a perspective view of an eighth embodiment;

fig. 26 is an exploded view of the eighth embodiment;

FIG. 27 is a front elevational view of the left end of the valve body of FIG. 26;

FIG. 28 is a schematic cross-sectional view taken at A-A of FIG. 27;

fig. 29 is a schematic cross-sectional view at B-B in fig. 27.

Reference numerals: 1. a housing; 2. a valve body; 3. a thermostatic valve core cavity; 4. a thermostatic valve core; 5. a temperature regulating valve stem; 6. a temperature adjusting hand wheel; 7. pressing the sleeve; 8. a thread; 9. a fastening part; 10. a tooth socket; 11. clamping a plane; 12. circumferential positioning blocks; 13. a circumferential positioning groove; 14. a valve housing; 15. a circumferential clamping groove; 16. a temperature adjusting slide block; 17. a thermosensitive element; 18. a return spring; 19. a current limiting assembly; 20. a paraffin temperature sensing component; 21. a memory alloy spring; 22. a piston; 23. controlling the water level I; 24. controlling the water level II; 25. a dual slip sleeve assembly; 26. a screw; 27. a left half part; 28. a right half portion; 29. a switch valve core cavity; 30. a switch valve core; 31. a first water inlet; 32. a mixed water outlet; 33. a water inlet II; 34. a first flow passage; 35. a second flow passage; 36. a mixed water channel I; 37. a second mixed water channel; 38. a locking member; 39. a sleeve portion; 40. a plug portion; 41. a jack; 42. a slot; 43. a cold water ring groove; 44. a cold water outlet; 45. a cold water inlet; 46. a hot water inlet; 47. filtering with a screen; 48. a jacket; 49. an inner sleeve; 50. a lower hem; 51. a first water control port; 52. a water control port II; 53. controlling a water gap III; 54. controlling a water gap; 55. a first water outlet channel; 56. a second water outlet channel; 57. a joint; 58. a first water inlet channel; 59. an upper half part; 60. a lower half; 61. and (5) fixing the rod.

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 of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Embodiment one, a thermostatic faucet with a conveniently detachable thermostatic cartridge,

as shown in fig. 1, the thermostatic faucet convenient for disassembling the thermostatic valve core comprises a housing 1, wherein a long strip-shaped valve body 2 is installed in the housing 1, a switch valve core cavity 29 is formed in the left end of the valve body 2, a thermostatic valve core cavity 3 is formed in the right end of the valve body 2, a switch valve core 30 is installed in the switch valve core cavity 29, and a thermostatic valve core 4 is installed in the thermostatic valve core cavity 3. A switch valve rod extends out of the end part of the switch valve core 30, and a switch hand wheel is fixedly arranged on the switch valve rod. The outer end of the thermostatic valve core 4 extends out of a temperature adjusting valve rod 5. A temperature adjusting hand wheel 6 is fixed on the temperature adjusting valve rod 5, a pressing sleeve 7 is arranged between the temperature adjusting hand wheel 6 and the thermostatic valve core 4, the inner end of the pressing sleeve 7 is positioned at the outer side of the radial surface of the end part of the thermostatic valve core 4, and the inner end surface of the pressing sleeve 7 can be abutted and pressed with the radial surface of the outer end of the thermostatic valve core 4 during installation. The outer side surface of the inner end of the pressing sleeve 7 is provided with a thread 8, and the pressing sleeve 7 is fixed in the thermostatic valve core cavity 3 through the thread 8 on the outer side surface of the inner end. When the pressing sleeve 7 is fixed in the thermostatic valve core cavity 3, the end face of the inner end of the pressing sleeve 7 presses the thermostatic valve core 4 in the thermostatic valve core cavity 3, so that the thermostatic valve core 4 is fixed. The side face of the outer end of the pressing sleeve 7 is provided with a clamping part 9, and the clamping part 9 is positioned between the shell 1 and the temperature-adjusting hand wheel 6. Because the clamping part 9 is not covered by the temperature adjusting hand wheel 6 and the shell 1, when the thermostatic valve core 4 needs to be disassembled, the pressing sleeve 7 can be rotated out of the thermostatic valve core cavity 3 as long as the clamping part 9 drives the pressing sleeve 7 to rotate. The inner diameter of the outer end of the pressing sleeve 7 is smaller than the outer diameter of the temperature adjusting hand wheel 6, when the pressing sleeve 7 rotates out of the constant temperature valve core cavity 3, the surface of the outer end of the pressing sleeve 7 can be abutted against the inner end face of the temperature adjusting hand wheel 6, and therefore the temperature adjusting hand wheel 6 is pushed to move outwards together. The temperature adjusting hand wheel 6 is fixed on the temperature adjusting valve rod 5, and when the temperature adjusting hand wheel 6 moves towards the outer side of the constant temperature valve core cavity 3, the temperature adjusting hand wheel can drive the constant temperature valve core 4 to move towards the outer side of the constant temperature valve core cavity 3 synchronously, so that the constant temperature valve core 4 is taken out from the constant temperature valve core cavity 3, and then the filter screen 47 on the constant temperature valve core cavity 3 can be washed to remove particles accumulated on the filter screen.

The clamping part 9 is a tooth socket 10 arranged on the outer side surface of the outer end of the pressing sleeve 7, and the tooth sockets 10 are uniformly distributed along the circumference of the outer side surface of the clamping part 9. The external diameter of 9 external diameters of block portion is greater than the hand wheel 6 external diameter that adjusts the temperature for annular extracting tool can embolia the pressure cover 7 outside from the hand wheel 6 outside that adjusts the temperature, and realize circumference fixed between the tooth's socket 10, then pull extracting tool, make it drive and press cover 7 to rotate, realize dismantling or screw up.

As shown in fig. 2, 4 and 7, a circumferential positioning block 12 is disposed on the outer side surface of the thermostatic valve core 4, and a circumferential positioning groove 13 is disposed in the thermostatic valve core chamber 3. The circumferential positioning block 12 is clamped in the circumferential positioning groove 13, so that the circumferential position of the thermostatic valve core 4 is positioned, and the thermostatic valve core 4 is prevented from rotating in the thermostatic valve core cavity 3. With the arrangement, the circumferential positions of the thermostatic valve core 4 can be kept consistent when the thermostatic valve core 4 is installed every time. When the temperature adjusting hand wheel 6 is provided with an indicating arrow and the shell 1 is provided with a temperature mark, the thermostatic valve core 4 can not be changed along with the circumferential position after the thermostatic valve core 4 is repeatedly disassembled and assembled, so that the deviation exists between the temperature indicated by the arrow on the temperature adjusting hand wheel 6 and the actual water outlet temperature.

As shown in fig. 4, the thermostatic valve element 4 includes a valve housing 14, a cold water inlet 45 and a hot water inlet 46 are opened on a side surface of the valve housing 14, and a strainer 47 is surrounded outside the cold water inlet 45 and the hot water inlet 46. The valve housing 14 is provided with a temperature control valve rod 5, a temperature control slider 16, a thermal element 17, a return spring 18 and a flow restriction assembly 19. One end of the temperature adjusting valve rod 5 extends out of the end part of the valve casing 14, the other end of the temperature adjusting valve rod is positioned in the valve casing 14 and is in threaded transmission connection with the temperature adjusting slide block 16, the temperature adjusting slide block 16 is axially arranged in the valve casing 14 in a sliding mode, and the temperature adjusting slide block 16 can be driven to slide along the axial direction of the valve core when the temperature adjusting valve rod 5 rotates. The temperature sensing element 17 is a paraffin temperature sensing assembly 20, the current limiting assembly 19 is a piston 22, the piston 22 is sleeved on the paraffin temperature sensing assembly 20, a return spring 18 is sleeved on the outer side of the left end of the paraffin temperature sensing assembly 20, and the right end of the paraffin temperature sensing assembly 20 is abutted to the temperature adjusting slide block 16. The valve housing 14 at the two ends of the piston 22 is respectively provided with a first water control surface 23 and a second water control surface 24. The first water control surface 23 is matched with the right end face of the piston 22 to control the cold water inflow. The second water control surface 24 is matched with the left end face of the piston 22 to control the water inflow of hot water. The water outlet of the thermostatic valve core 4 is arranged at the left end of the thermostatic valve core 4, and when the mixed water temperature is higher than the set water outlet temperature of the thermostatic valve core 4, the piston 22 moves towards the left end of the thermostatic valve core 4. When the mixed water temperature is lower than the set outlet water temperature of the thermostatic cartridge 4, the piston 22 moves toward the right end of the thermostatic cartridge 4.

The circumferential clamping groove 15 is formed in the outer circumferential face of the upper end of the temperature adjusting valve rod 5, the temperature adjusting hand wheel 6 is provided with a clamping hole corresponding to the circumferential clamping groove 15, and the clamping hole is sleeved on the clamping groove, so that circumferential fixing is achieved between the temperature adjusting hand wheel 6 and the temperature adjusting valve rod 5. Meanwhile, the temperature adjusting hand wheel 6 is axially fixed on the end face of the temperature adjusting valve rod 5 through a screw 26, and the temperature adjusting hand wheel 6 is prevented from being separated from the temperature adjusting valve rod 5.

As shown in fig. 5 to 7, the valve body 2 is a long strip, the valve body 2 includes a left half 27 and a right half 28, an opening and closing valve core chamber 29 is disposed at an outer end of the left half 27, and an opening and closing valve core 30 is installed in the opening and closing valve core chamber 29. The thermostatic spool cavity 3 is arranged at the outer end of the right half part 28, and the thermostatic spool 4 is arranged in the thermostatic spool cavity 3. The left half portion 27 is provided with a first water inlet 31 and a mixed water outlet 32, the first water inlet 31 is located at the rear side of the left half portion 27 and is perpendicular to the axis of the switch valve core cavity 29, the first water inlet 31 is communicated with the bottom surface of the switch valve core cavity 29 through an L-shaped flow channel, and the mixed water outlet 32 is also perpendicular to the axis of the switch valve core cavity 29 and is communicated with the bottom surface of the switch valve core cavity 29 through an L-shaped flow channel. The right half part 28 is provided with a second water inlet 33, and the second water inlet 33 is vertical to the thermostatic valve core cavity 3 and is communicated with the side surface of the thermostatic valve core cavity 3. The left half part 27 is provided with a first overflowing channel 34 and a first mixed water channel 36, and the right half part 28 is provided with a second overflowing channel 35 and a second mixed water channel 37. The end parts of the first mixed water channel 36 and the first overflowing channel 34 are provided with sleeve parts 39, the end parts of the second mixed water channel 37 and the second overflowing channel 35 are provided with plug parts 40, and the plug parts 40 are inserted into the sleeve parts 39. The left half 27 and the right half 28 are fitted by plugging the plug portion 40 and the sleeve portion 39. The sleeve portion 39 is provided with a jack 41, the jack 41 is perpendicular to the axis of the sleeve portion 39, the plug portion 40 is provided with a slot 42, and the slot 42 is annular and is located on the outer side face of the plug portion 40. When the plug portion 40 is inserted into the sleeve portion 39, the insertion groove 42 is inside the insertion hole 41. The locking member 38 is inserted into the insertion hole 41 and the insertion groove 42, the locking member 38 has a U shape, and both ends of the locking member 38 are inserted into the insertion hole 41 and are inserted into the insertion groove 42, thereby preventing the plug portion 40 from coming off from the sleeve portion 39.

The first overflowing channel 34 and the second overflowing channel 35 are communicated with the bottom surface of the switch valve core cavity 29 and the side surface of the constant temperature valve core cavity 3, and the first mixed water channel 36 and the second mixed water channel 37 are communicated with the bottom surface of the switch valve core cavity 29 and the bottom surface of the constant temperature valve core cavity 3. The switch valve core 30 is a synchronous double switch valve core 30, and can simultaneously control the on-off of the two waterways. The hot water enters the bottom surface of the switch valve core cavity 29 from the first water inlet 31 and then enters one water inlet hole of the switch valve core 30, and the mixed water enters the bottom surface of the switch valve core cavity 29 from the first mixed water channel 36 and then enters the other water inlet hole of the switch valve core 30. The control valve plate is arranged in the switch valve core cavity 29 and can simultaneously connect or cut off the first water inlet 31 and the first overflowing flow channel 34, the first mixed water channel 36 and the first mixed water outlet 32.

Embodiment two, a constant temperature tap convenient to unpick and wash constant temperature case

The difference between the second embodiment and the first embodiment is that the thermostatic valve core 4 in the second embodiment is shown in fig. 8, wherein the temperature sensing element is a memory alloy spring 21, the memory alloy spring 21 is installed on the left side of the piston 22, and the return spring 18 is installed on the right side of the piston 22. The water inlet of the valve housing 14 close to the temperature control valve rod 5 is a hot water inlet 46 communicating with hot water, and the water inlet of the valve housing 14 far from the temperature control valve rod 5 is a cold water inlet 45 communicating with cold water.

In use, the second water inlet 33 of the right half 28 is in communication with a hot water supply conduit and the first water inlet 31 of the left half 27 is in communication with a cold water supply conduit. The hot water directly enters the thermostatic valve core cavity 3 through the water inlet II 33. The cold water enters the switch valve core cavity 29 through the water inlet I31, passes through the switch valve core 30 and then enters the constant temperature valve core cavity 3 through the hot water channel.

Embodiment three, a constant temperature tap convenient to unpick and wash constant temperature case

As shown in fig. 9, the difference between the third embodiment and the second embodiment is that the flow restriction assembly 19 of the third embodiment adopts a dual sliding sleeve assembly 25. The double-sliding sleeve assembly 25 is installed on the inner sides of the hot water inlet 46 and the cold water inlet 45 of the valve casing 14, the double-sliding sleeve assembly 25 comprises an outer sleeve 48 and an inner sleeve 49, the outer sleeve 48 is fixedly arranged, and the inner sleeve 49 is slidably arranged in the outer sleeve 48. The jacket 48 is provided with a first water control port 51 and a second water control port 52, and the first water control port 51 and the second water control port 52 are respectively communicated with the hot water inlet 46 and the cold water inlet 45. The inner sleeve 49 is provided with a water control port three 53 and a water control port four 54 corresponding to the water control port one 51 and the water control port two 52. The superposed part of the third water control port 53 and the first water control port 51 forms a first water inlet adjusting gap, and the superposed part of the second water control port 52 and the fourth water control port 54 forms a second water inlet adjusting gap. When the inner sleeve 49 slides in the outer sleeve 48, the sizes of the first water inlet adjusting gap and the second water inlet adjusting gap are changed simultaneously, so that the hot water inlet quantity and the cold water inlet quantity are controlled, and constant-temperature water outlet is realized.

In addition, the inner and outer sleeves may be constructed as shown in patent No. 201721009756.8.

Fourth embodiment, a thermostatic faucet convenient to unpick and wash thermostatic cartridge

The difference between the fourth embodiment and the first embodiment is that the engaging portions 9 in the fourth embodiment are engaging planes 11 disposed at the outer ends of the pressing sleeve 7 as shown in fig. 11, and the number of the engaging planes 11 is two and symmetrically disposed at both sides of the pressing sleeve 7. When the pressing sleeve 7 is rotated, an open-end wrench can be used to engage with the engaging plane 11, so as to drive the pressing sleeve 7 to rotate. Further, the number of the engaging flat surfaces 11 may be more, for example, three, four, five, six, or the like.

Fifth embodiment, a thermostatic faucet convenient for disassembling and washing thermostatic cartridge

As shown in fig. 12, the difference between the fifth embodiment and the first embodiment is that a cold water outlet 44 is further disposed on the right half 28 in the fifth embodiment, and the cold water outlet 44 and the second water inlet 33 are symmetrically disposed on the upper and lower sides of the right half 28 and are communicated with the thermostatic cartridge chamber 3. The outer diameter of the thermostatic valve core 4 is smaller than the inner diameter of the thermostatic valve core cavity 3 at the water inlet II 33 and the cold water outlet 44, a cold water ring groove 43 is formed between the outer wall of the thermostatic valve core 4 and the inner wall of the thermostatic valve core cavity 3, and the water inlet II 33 and the cold water outlet 44 are communicated with the cold water ring groove 43. After entering the cold water ring groove 43 through the second water inlet 33, the cold water can enter the cold water outlet 44 through the cold water ring groove 43. When the thermostatic valve core is used, the cold water outlet 44 is directly communicated with the water inlet of the water heater, one branch of cold water flowing into the cold water ring groove 43 from the water inlet II 33 enters the thermostatic valve core 4, and the other branch of cold water enters the water heater through the cold water outlet 44.

Meanwhile, as shown in fig. 14 and 15, the valve body 2 in the fifth embodiment is still divided into a left half part 27 and a right half part 28, the left half part 27 and the right half part 28 are connected by a plug part 40 and a sleeve part 39, and a locking member 38 is inserted between the plug part 40 and the sleeve part 39.

Sixth embodiment, a thermostatic faucet convenient for disassembling and washing thermostatic cartridge

As shown in fig. 16, the sixth embodiment is different from the first embodiment in that the number of the mixed water outlets 32 in the sixth embodiment is two, and the two mixed water outlets 32 are respectively located on the upper side and the lower side of the left half portion 27. A lower hem 50 is mounted on the mixed water outlet 32 at the lower side of the left half 27. At this time, the switch valve core 30 is a synchronous double-switch valve core 30 with a water outlet selection function, such as a two-way water outlet ceramic valve core shown in chinese patent No. 201510538006.9.

Meanwhile, the structure of the valve body 2 of the sixth embodiment is different from that of the first embodiment. As shown in fig. 17 to 20, the left half 27 of the valve body 2 is provided with two mixed water outlets 32, and the two mixed water outlets 32 face the upper and lower sides of the valve body 2 respectively. The two mixed water outlets 32 are respectively communicated with the bottom surface of the switch valve core cavity 29 through a first water outlet channel 55 and a second water outlet channel 56. The left half 27 and the right half 28 are connected by a plug portion 40 and a sleeve portion 39, while being fastened by a locker 38. The thermostatic valve core 4 in the sixth embodiment can also be selected from the thermostatic valve core 4 in the second embodiment or the thermostatic valve core 4 in the third embodiment, and the water inlet I31 and the water inlet II 33 are determined to be connected with a cold water supply pipeline or a hot water supply pipeline according to the adjusting characteristic of the thermostatic valve core 4.

Seventh embodiment, a thermostatic faucet convenient for disassembling and washing thermostatic cartridge

As shown in fig. 21 to 24, the housing 1 of the seventh embodiment is square, and the valve element 2 is mounted in the square housing 1. The valve body 2 is divided into an upper half portion 59 and a lower half portion 60, and the upper half portion 59 and the lower half portion 60 are connected in a plugging mode. The thermostatic spool cavity 3 is arranged in the upper half portion 59, the switching spool cavity 29 is arranged in the lower half portion 60, the first water inlet 31 and the second water inlet 33 are both arranged on the lower half portion 60, cold water and hot water enter the bottom surface of the switching spool cavity 29 from the first water inlet 31 and the second water inlet 33, then enter the switching spool 30 from the bottom surface of the switching spool cavity 29, finally flow into the lower half portion 60 again from the bottom surface of the switching spool cavity 29 under the control of the switching spool 30, and then flow into the upper half portion 59 from the communicating flow passage at the upper end of the lower half portion 60. After cold water and hot water enter the upper part 59, the cold water and the hot water enter the thermostatic valve core cavity 3 through the side surface of the thermostatic valve core cavity 3, then flow into the thermostatic valve core 4 from the side surface of the thermostatic valve core 4, and the thermostatic valve core 4 automatically adjusts the mixing proportion of the cold water and the hot water according to the set water outlet temperature, so that constant-temperature water outlet is realized. The mixed water outlet 32 is arranged at the upper end of the upper half portion 59, and the mixed water outlet 32 is communicated with the bottom of the thermostatic valve core cavity 3 through a bent flow passage to lead out the mixed warm water.

The thermostatic valve core 4 is inserted in the thermostatic valve core cavity 3, the outer end of the thermostatic valve core cavity 3 is connected with the pressing sleeve 7 through threads 8, and the end face of the inner end of the pressing sleeve 7 is abutted against the radial face of the outer end of the thermostatic valve core cavity 3 so as to tightly press the thermostatic valve core 4 in the thermostatic valve core cavity 3. The temperature adjusting valve rod 5 of the thermostatic valve core 4 penetrates into the pressing sleeve 7, the inner end of the temperature adjusting hand wheel 6 is integrally provided with a fixing rod 61, and the fixing rod 61 extends into the pressing sleeve 7 and is sleeved at the end part of the temperature adjusting valve rod 5, so that circumferential fixation is realized between the fixing rod 61 and the pressing sleeve 7. The outer end of the temperature adjusting hand wheel 6 of the screw 26 penetrates into the temperature adjusting hand wheel 6 and the fixing rod 61, so that the temperature adjusting hand wheel 6 is axially and fixedly connected with the temperature adjusting valve rod 5. The side surface of the outer end of the pressing sleeve 7 is provided with a clamping part 9, and the clamping part 9 is positioned between the temperature adjusting hand wheel 6 and the shell 1.

Eighth embodiment, a thermostatic faucet convenient to unpick and wash thermostatic cartridge

The difference between the embodiment eight and the embodiment one lies in the position of the mixed water outlet 32 in the embodiment eight. As shown in fig. 25, the mixed water outlet 32 in the eighth embodiment is axially arranged in parallel with the first water inlet 31 and the second water inlet 33.

As shown in fig. 26, the housing 1 is sleeved outside the valve body 2, a mounting hole is formed in the housing 1, and the joint 57 penetrates into the housing 1 from the mounting hole and is connected to the valve body 2. The housing 1 is fixed outside the valve body 2 by a joint 57. The left end of the valve body 2 is a left half 27, and the right end of the valve body 2 is a right half 28. The outer end of the left half part 27 is provided with a switch valve core cavity 29, and the outer end of the right half part 28 is provided with a constant temperature valve core cavity 3. As shown in fig. 27 to 28, the bottom surface of the switching valve core cavity 29 is communicated with the side surface of the thermostatic valve core cavity 3 through a first flow passage 34 and a second flow passage 35. The bottom surface of the thermostatic valve core cavity 3 is communicated with the switch valve core cavity 29 through a first mixed water channel 36 and a second mixed water channel 37. The first water inlet 31 is communicated with one end of the first water inlet channel 58, the other end of the first water inlet channel 58 is communicated with the bottom surface of the switch valve core cavity 29, and the second water inlet 33 is directly communicated with the side surface of the constant temperature valve core cavity 3. The mixed water outlet 32 is communicated with one end of the first water outlet channel 55, and the other end of the first water outlet channel 55 is communicated with the bottom surface of the switch valve core cavity 29.

The switch valve core 30 is installed in the switch valve core cavity 29, and the switch valve core 30 can control the water flow flowing in from the first water inlet 31 and can synchronously control the water flow flowing in from the first mixed water channel 36, so that the flow of the mixed water outlet 32 is controlled.

The above description is intended to be illustrative of the present invention and not to limit the scope of the invention, which is defined by the claims appended hereto.

Claims

1. The utility model provides a constant temperature tap convenient to unpick and wash thermostatic cartridge, includes casing (1), installs valve body (2) in casing (1), and valve body (2) one end is provided with thermostatic cartridge chamber (3), installs thermostatic cartridge (4) in thermostatic cartridge chamber (3), and thermostatic cartridge (4) outer end stretches out has temperature regulating valve rod (5), is fixed with temperature regulating hand wheel (6), characterized by on the temperature regulating valve rod (5): the temperature control valve core (4) and the temperature control hand wheel (6) are sleeved with a pressing sleeve (7), the inner end face of the pressing sleeve (7) is positioned on the outer side of the radial face of the temperature control valve core (4) and can be abutted and compressed, the outer peripheral face of the inner end of the pressing sleeve (7) is in spiral connection with the inner wall of the temperature control valve core cavity (3), the side face of the outer end of the pressing sleeve (7) is provided with a clamping portion (9), and the clamping portion (9) is positioned between the shell (1) and the temperature control hand wheel (6).

2. The thermostatic faucet convenient for disassembling and washing the thermostatic cartridge according to claim 1, characterized in that: the clamping part (9) is a tooth groove (10) or a clamping plane (11) arranged on the outer side surface of the outer end of the pressing sleeve (7).

3. A thermostatic faucet facilitating the disassembly and cleaning of a thermostatic cartridge according to claim 1 or 2, characterized in that: the outer diameter of the outer end of the pressing sleeve (7) is larger than the outer diameter of the temperature adjusting hand wheel (6), and the inner diameter of the outer end of the pressing sleeve (7) is smaller than the outer diameter of the temperature adjusting hand wheel (6).

4. The thermostatic faucet convenient for disassembling and washing the thermostatic cartridge according to claim 1, characterized in that: a circumferential positioning block (12) is arranged on the outer side surface of the thermostatic valve core (4), and a circumferential positioning groove (13) is arranged in the thermostatic valve core cavity (3).

5. The thermostatic faucet convenient for disassembling and washing the thermostatic cartridge according to claim 1, characterized in that: constant temperature case (4) include valve casing (14), cold water inlet (45) and hot water inlet (46) have been seted up to valve casing (14) side, cold water inlet (45) and hot water inlet (46) outside cover are equipped with filter screen (47), be provided with temperature regulating valve rod (5) in valve casing (14), slider (16) adjust the temperature, thermal element (17), reset spring (18) and current-limiting subassembly (19), thermal element (17) are paraffin temperature sensing subassembly (20) or memory alloy spring (21), current-limiting subassembly (19) are piston (22), piston (22) up end and lower terminal surface cooperate the water intake proportion of control surface of water (23) and control surface of water two (24) on valve casing (14) respectively, perhaps current-limiting subassembly (19) are two sliding sleeve subassemblies (25) of installing in valve casing (14).

6. The thermostatic faucet convenient for disassembling and washing the thermostatic cartridge according to claim 1, characterized in that: the outer peripheral face of the upper end of the temperature adjusting valve rod (5) is provided with a circumferential clamping groove (15), the temperature adjusting hand wheel (6) is sleeved on the circumferential clamping groove (15), and the temperature adjusting hand wheel (6) is axially fixed on the end face of the temperature adjusting valve rod (5) through a screw (26).

7. The thermostatic faucet convenient for disassembling and washing the thermostatic cartridge according to claim 1, characterized in that: the valve body (2) is in a strip shape, the valve body (2) comprises a left half part (27) and a right half part (28), a switch valve core cavity (29) is arranged at the outer end of the left half part (27), a switch valve core (30) is installed in the switch valve core cavity (29), a thermostatic valve core cavity (3) is arranged at the outer end of the right half part (28), the left half part (27) and the right half part (28) are in inserted fit, a first water inlet (31) and a mixed water outlet (32) which are communicated with the switch valve core cavity (29) are arranged on the left half part (27), a second water inlet (33) which is communicated with the thermostatic valve core cavity (3) is arranged on the right half part (28), a first overflowing channel (34) and a first mixed water channel (36) are arranged at the right end of the left half part (28), a second overflowing channel (35) and a second mixed water channel (37) are arranged at the left end of the right half part (28), the overflowing channel (34) and, the first mixed water channel (36) and the second mixed water channel (37) are connected with the constant-temperature valve core cavity (3) and the switch valve core cavity (29) in an inserting and matching mode, and a locking piece (38) is further arranged at the inserting position.

8. The thermostatic faucet convenient for disassembling and washing the thermostatic cartridge according to claim 7, characterized in that: the end part of the first mixed water channel (36) is a sleeve part (39), the end part of the second mixed water channel (37) is a plug part (40), the plug part (40) is inserted into the sleeve part (39), the sleeve part (39) is provided with a jack (41), the plug part (40) is provided with a slot (42), and the locking piece (38) penetrates into the jack (41) and is clamped in the slot (42).

9. The thermostatic faucet convenient for disassembling and washing the thermostatic cartridge according to claim 7, characterized in that: a cold water ring groove (43) is formed between the outer side surface of the thermostatic valve core (4) and the inner wall of the thermostatic valve core cavity (3), a cold water outlet (44) is further arranged on the right half part (28), and the water inlet II (33) and the cold water outlet (44) are communicated with the cold water ring groove (43).