A new hot water combination valve

Abstract

The present invention discloses a novel hot water combination valve, comprising a valve body, a water retaining disc assembly, a return spring, a valve core assembly, and a coil assembly. The valve body is provided with a water inlet, a first cavity, a second cavity, a third cavity, and a water outlet, and a flow port is provided between the first cavity and the second cavity. The water retaining disc assembly comprises a water retaining disc and a water retaining diaphragm. The water retaining diaphragm comprises a sealing disc and an elastic portion arranged at the edge of the sealing disc, the elastic portion being mounted on the inner wall of the first cavity, the water retaining disc being mounted on the sealing disc, the elastic portion covering the outer periphery of the water retaining disc, a flow guide portion penetrating the sealing disc is provided in the middle of the water retaining disc, a flow guide hole is provided in the axial direction of the flow guide portion, an annular groove is provided circumferentially on an end surface of the sealing disc near the water retaining disc, a side hole is provided circumferentially on the inner end of the annular groove, and a plurality of boosting grooves are provided at the edge of the water retaining disc. The present invention not only solves the problem of blockage caused by foreign matter and scale, but also has the function of flow regulation, thereby achieving the purpose of high versatility.

Description

Technical Field

[0001] The present invention relates to the technical field of solenoid valves, in particular to a novel hot water combination valve. Background Art

[0002] Solenoid valves are electromagnetically controlled industrial devices. They are basic automation components used to control fluids and are classified as actuators, not limited to hydraulic or pneumatic systems. They are used in industrial control systems to adjust the direction, flow, speed, and other parameters of a medium. Solenoid valves can be combined with various circuits to achieve the desired control, ensuring both precision and flexibility. There are many types of solenoid valves, each serving different functions in a control system. The most commonly used are check valves, safety valves, directional control valves, and speed control valves. The principle of a solenoid valve: When power is applied, the electromagnetic coil generates electromagnetic force that lifts the closing element from the valve seat, opening the valve. When power is removed, the electromagnetic force disappears, and a spring presses the closing element against the valve seat, closing the valve.

[0003] The existing hot water solenoid valve on the market mainly consists of a valve body, a water retaining disc, a sealing silicone component, a spring, and a flow assembly. The solenoid valve is opened by energizing the coil, and the flow assembly meets the required flow requirements. However, the hot water solenoid valve has the following problems:

[0004] 1. Existing solenoid valves on the market use a pilot-operated method (side holes for boosting pressure, center holes for reducing pressure) to achieve the solenoid valve switching effect. This can easily lead to solenoid valve failure due to problems such as foreign matter and scale.

[0005] 2. The flow of solenoid valves on the market cannot be adjusted. They generally use fixed throttling or flow limiting components, which can only meet the flow requirements under a certain section or several sections of water pressure and cannot be universal. Summary of the Invention

[0006] The object of the present invention is to provide a novel hot water combination valve, which not only solves the problem of clogging by foreign matter and scale, but also has the function of flow regulation, thereby achieving the purpose of high versatility.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a new type of hot water combination valve, comprising a valve body, a water retaining disc assembly, a valve core assembly and a coil assembly, the valve body being provided with a water inlet, a first cavity, a second cavity, a third cavity and a water outlet which are interconnected, a flow port being provided between the first cavity and the second cavity, the coil assembly being mounted on the valve body, a valve core sleeve being provided in the coil assembly, the valve core assembly being axially slidably arranged in the valve core sleeve, and a return spring acting on the valve core assembly being provided in the valve core sleeve, the water retaining disc assembly being arranged in the first cavity and cooperating with the valve core assembly to control the opening and closing of the flow port; the water retaining disc assembly comprising a water retaining disc The invention relates to a disk and a water retaining diaphragm, wherein the water retaining diaphragm includes a sealing disk for forming a sealing fit with the flow port and an elastic part arranged on the edge of the sealing disk, the elastic part is installed on the inner wall of the first cavity, the water retaining disk is installed on the sealing disk, and the elastic part covers the outer periphery of the water retaining disk, a guide part is provided in the middle of the water retaining disk and passes through the sealing disk, a guide hole is axially opened on the guide part, an annular groove is circumferentially opened on an end face of the sealing disk close to the water retaining disk, a plurality of side holes connected to the second cavity are circumferentially opened on the inner end of the annular groove, and a plurality of boosting grooves are provided on the edge of the water retaining disk for connecting the annular groove with the first cavity.

[0008] By adopting the above technical solution, the structure of the original hot water valve water retaining plate with only one boosting hole is improved, and a structure with two boosting grooves is adopted, and the sealing plate adopts a porous structure, that is, the multiple side holes on the sealing plate, the annular groove on the sealing plate and the boosting groove on the water retaining plate are interconnected. When the pressure is boosted, the medium passes through the side holes, the annular groove and the boosting groove from the bottom of the water retaining plate assembly to the top of the water retaining plate assembly in sequence. This structure improves the patency of the boosting channel and solves the problem of clogging by foreign matter and scale.

[0009] The present invention is further configured such that a conical guide portion is provided at one end of the guide portion away from the coil assembly, and an annular clamping gap for embedding a sealing disk is provided between the conical guide portion and the water retaining disk.

[0010] By adopting the above technical solution, the conical guide part can guide the movement of the water retaining plate assembly, so that it can move up and down smoothly. At the same time, the sealing plate is embedded in the annular clamping gap, and its connection structure is simple, which is conducive to early assembly and later maintenance operations.

[0011] The present invention is further configured such that one end of the guide portion close to the valve core assembly is provided with a conical contact portion for cooperating with the valve core assembly and having a smaller upper portion and a larger lower portion.

[0012] By adopting the above technical solution, when the valve core assembly moves downward, it can effectively block the guide hole by pressing against the conical contact part, and can reduce the flatness requirement for the upper surface of the conical contact part, which not only has good sealing performance but also is easy to process.

[0013] The present invention is further configured such that an annular claw with an inverted U-shaped cross-section is provided on the inner end edge of the valve core sleeve, a first clamping groove with a U-shaped cross-section is provided on the inner wall of the first cavity, a clamping portion is provided at the edge of the elastic portion, and a pressure ring for abutting against the outer end of the annular claw is provided at the outer end of the first cavity, and the annular claw presses the clamping portion tightly in the first clamping groove under the action of the pressure ring.

[0014] By adopting the above technical solution, the fixed installation of the sealing disc can be achieved, and the installation structure is firm and reliable with good sealing performance.

[0015] The present invention is further configured to include a flow regulating component, which includes a material rod slidably arranged in the third cavity and a first O-ring installed on the inner wall of the second cavity. A conical adjustment ring is installed on the material rod, and a flow gap is formed between the conical adjustment ring and the first O-ring. When the material rod drives the conical adjustment ring to move along the axial direction of the material rod, the flow gap becomes larger or smaller.

[0016] By adopting the above technical solution, the size of the flow gap between the conical adjustment ring and the first O-ring can be changed by operating the material rod to move along its own axial direction, thereby achieving the effect of adjusting the flow to meet the requirements of different models.

[0017] The present invention is further configured to include an adjusting seat and an adjusting bolt, the outer end of the third cavity is provided with a first mounting port, the adjusting seat is rotatably set on the first mounting port, a screw hole is provided in the adjusting seat, the adjusting bolt is provided with an external thread matching the screw hole, a guide groove is provided on the inner wall of the third cavity along the axial direction of the adjusting bolt, the adjusting bolt is provided with a slider matching the guide groove, the adjusting bolt is provided with a mounting hole along the axial direction, the end of the material rod close to the adjusting seat is inserted into the mounting hole, and the end of the material rod away from the adjusting seat is provided with a tightening portion with a semicircular cross-section for pressing the conical adjustment ring onto the inner end face of the adjusting bolt.

[0018] By adopting the above technical solution, by rotating the adjusting seat, the adjusting bolt is driven to slide axially, the adjusting bolt drives the material rod to slide axially, and then drives the conical adjusting ring to slide axially, thereby realizing the change of the size of the flow gap and achieving the effect of adjusting the flow rate, and the operation is very convenient.

[0019] The present invention is further configured such that the inner end of the adjustment seat is provided with a first limiting flange for abutting against the outer wall of the valve body, the position of the adjustment seat near the outer end is provided with a second limiting flange for abutting against the outer wall of the valve body, the outer end of the first mounting port is provided with an elastic ring, the elastic ring is provided with a guide inclined surface extending toward the inner periphery, a first sealing groove is provided along the outer periphery of the adjustment seat, and a second O-ring for forming a sealing fit with the inner wall of the first mounting port is embedded in the first sealing groove.

[0020] By adopting the above technical solution, the installation and positioning of the adjustment seat can be achieved, so that the adjustment seat can be stably rotated on the first installation opening.

[0021] The present invention is further configured such that a plurality of reinforcing ribs are provided on the inner wall of the conical adjustment ring along the circumferential direction, and the reinforcing ribs extend axially along the conical adjustment ring.

[0022] By adopting the above technical solution, the overall strength of the conical adjustment ring can be improved, thereby preventing it from undergoing significant deformation during long-term use, thereby preventing it from affecting the accuracy of flow regulation.

[0023] The present invention is further configured such that a second sealing groove is provided on the inner wall of the second cavity, and a fixing seat for pressing the first O-ring onto the second sealing groove is welded on the inner wall of the second cavity.

[0024] By adopting the above technical solution, the first O-ring can be securely installed.

[0025] The present invention is further configured to include a pressure switch assembly, which includes a pressure diaphragm, an end cover, a pressure piston, a first spring, a spring button and a second spring, the outer end of the second cavity is provided with a second mounting port, the second mounting port is circumferentially provided with a second clamping groove, the end cover is installed on the second mounting port and presses the edge of the pressure diaphragm into the second clamping groove, the pressure piston is arranged between the pressure diaphragm and the end cover, one end of the first spring is against the inner end surface of the end cover, and the other end of the first spring is against the outer end surface of the pressure piston, the pressure piston is provided with a cylindrical portion passing through the end cover, the spring button is arranged on the cylindrical portion, one end of the second spring is against the inner end surface of the cylindrical portion, and the other end of the second spring is against the inner end surface of the spring button, a guide hole is opened axially on the cylindrical portion, and an anti-disengagement hook is provided on the side of the spring button that cooperates with the guide hole.

[0026] By adopting the above technical solution, when the pressure in the second cavity reaches the set value, a bulge is formed in the middle of the pressure diaphragm, pushing the pressure piston upward, causing the spring button to move upward at the same time; when the pressure decreases, the first spring presses the pressure piston downward, and the spring button moves downward at the same time, thereby judging the pressure size in the second cavity and enabling the valve to have the function of high and low water pressure detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the present invention from a first perspective;

[0028] Figure 2 A second perspective structural diagram of the present invention as a whole;

[0029] Figure 3 for Figure 1 AA section view;

[0030] Figure 4 It is a structural schematic diagram of the water retaining plate assembly of the present invention;

[0031] Figure 5 This is a schematic structural diagram of the water retaining plate of the present invention;

[0032] Figure 6 This is a schematic structural diagram of the water retaining diaphragm of the present invention;

[0033] Figure 7 for Figure 2 BB cross-sectional view;

[0034] Figure 8 for Figure 1 CC cross-sectional view;

[0035] Figure 9 It is a structural schematic diagram of the conical adjustment ring of the present invention;

[0036] Figure 10 This is a schematic diagram of the matching structure of the pressure piston and the spring button of the present invention.

[0037] In the figure: 1. valve body; 2. water retaining plate assembly; 3. valve core assembly; 4. coil assembly; 5. water inlet; 6. first cavity; 7. second cavity; 8. third cavity; 9. water outlet; 10. flow outlet; 11. valve core sleeve; 12. return spring; 13. water retaining plate; 14. water retaining diaphragm; 15. sealing plate; 16. flow guide; 17. flow guide hole; 18. annular groove; 19. side hole; 20. boost groove; 21. conical guide portion; 22. annular clamping gap; 23. conical contact portion; 24. annular claw; 25. first clamping groove; 26. clamping portion; 27. pressure ring; 28. flow regulating assembly; 29. ​​material rod; 30. first O-ring; 31. conical adjustment ring; 32. flow gap; 33. Adjusting seat; 34. Adjusting bolt; 35. Screw hole; 36. External thread; 37. Slider; 38. Mounting hole; 39. Tightening portion; 40. First limiting flange; 41. Second limiting flange; 42. Elastic ring; 43. Guide slope; 44. First sealing groove; 45. Second O-ring; 46. Reinforcing rib; 47. Second sealing groove; 48. Fixed seat; 49. Pressure switch assembly; 50. Pressure diaphragm; 51. End cover; 52. Pressure piston; 53. First spring; 54. Spring button; 55. Second spring; 56. Second mounting port; 57. Second clamping groove; 58. Cylinder; 59. Guide hole; 60. Anti-unhooking; 61. Guide groove; 62. Elastic portion; 63. First mounting port. DETAILED DESCRIPTION

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] Example: As shown in the attached Figures 1 to 10 A new type of hot water combination valve shown in the figure includes a valve body 1, a water retaining disc assembly 2, a valve core assembly 3 and a coil assembly 4, the valve body 1 is provided with a water inlet 5, a first cavity 6, a second cavity 7, a third cavity 8 and a water outlet 9 that are interconnected, a flow port 10 is provided between the first cavity 6 and the second cavity 7, the coil assembly 4 is installed on the valve body 1, a valve core sleeve 11 is provided in the coil assembly 4, the valve core assembly 3 is axially slidably arranged in the valve core sleeve 11, and a reset spring 12 acting on the valve core assembly 3 is provided in the valve core sleeve 11, the water retaining disc assembly 2 is arranged in the first cavity 6 and cooperates with the valve core assembly 3 to control the opening and closing of the flow port 10, that is, in the initial state, the reset spring 12 acts on the valve core assembly 3, so that the valve core assembly 3 presses the water retaining disc assembly 2 on the flow port 10; the water retaining disc assembly 2 includes a water retaining disc 13 with And a water retaining diaphragm 14, the water retaining diaphragm 14 includes a sealing disk 15 for forming a sealing fit with the flow port 10 and an elastic portion 62 arranged on the edge of the sealing disk 15, the elastic portion 62 is an inverted U-shaped structure, the elastic portion 62 is installed on the inner wall of the first cavity 6, the water retaining plate 13 is installed on the sealing disk 15, and the elastic portion 62 covers the outer periphery of the water retaining plate 13, and a guide portion 16 is provided in the middle of the water retaining plate 13, which passes through the sealing disk 15, and a guide hole 17 is axially opened on the guide portion 16, and an annular groove 18 is circumferentially opened on one end face of the sealing disk 15 close to the water retaining plate 13, and a plurality of side holes 19 connected to the second cavity 7 are circumferentially opened at the inner end of the annular groove 18, and a plurality of boosting grooves 20 for connecting the annular groove 18 with the first cavity 6 are provided on the edge of the water retaining plate 13. After water enters the first cavity 6, the coil assembly 4 is energized, the valve core assembly 3 moves upward, the guide hole 17 in the middle of the water retaining plate 13 releases pressure, the water retaining plate assembly 2 moves upward as a whole, and the first cavity 6 is connected to the second cavity 7. This hot water combination valve improves the structure of the original hot water valve water retaining plate 13 with only one boosting hole, adopts a structure with two boosting grooves 20, and the sealing plate 15 adopts a porous structure, that is, the multiple side holes 19 on the sealing plate 15, the annular groove 18 on the sealing plate 15 and the boosting groove 20 on the water retaining plate 13 are interconnected. When the pressure is increased, the medium passes through the side holes 19, the annular groove 18 and the boosting groove 20 from the bottom of the water retaining plate assembly 2 to the top of the water retaining plate assembly 2 in sequence. This structure improves the patency of the boosting channel and solves the problem of clogging by foreign matter and scale.

[0040] As attached Figure 4 and attached Figure 5 As shown, a conical guide portion 21 is provided at one end of the guide portion 16 away from the coil assembly 4. An annular clamping gap 22 for embedding the sealing disc 15 is provided between the conical guide portion 21 and the water retaining plate 13. The conical guide portion 21 can guide the movement of the water retaining plate assembly 2, allowing it to move up and down smoothly. At the same time, the sealing disc 15 is embedded in the annular clamping gap 22. Its connection structure is simple, which is conducive to early assembly and later maintenance operations.

[0041] As attached Figure 4 and attached Figure 5 As shown, the end of the guide portion 16 near the valve core assembly 3 is provided with a tapered contact portion 23 that is smaller at the top and larger at the bottom for mating with the valve core assembly 3. When the valve core assembly 3 descends, it abuts against the tapered contact portion 23, effectively blocking the guide hole 17 and reducing the flatness requirement for the upper surface of the tapered contact portion 23. This not only improves the sealing performance but also facilitates machining.

[0042] As attached Figure 4 As shown, the inner edge of the valve core sleeve 11 is provided with an annular claw 24 with an inverted U-shaped cross-section. The inner wall of the first cavity 6 is provided with a first clamping groove 25 with a U-shaped cross-section. The edge of the elastic portion 62 is provided with a clamping portion 26. The outer end of the first cavity 6 is provided with a pressure ring 27 for abutting the outer end of the annular claw 24. The pressure ring 27 can be installed on the outer end of the first cavity 6 via a screw or threaded connection. Under the action of the pressure ring 27, the annular claw 24 presses the clamping portion 26 into the first clamping groove 25. This design can achieve fixed installation of the sealing disk 15, and the installation structure is firm and reliable, with good sealing performance.

[0043] As attached Figure 7 and attached Figure 8 As shown, the modified hot water combination valve also includes a flow regulating assembly 28, which includes a rod 29 slidably disposed within the third cavity 8 and a first O-ring 30 mounted on the inner wall of the second cavity 7. A conical adjustment ring 31 is mounted on the rod 29, forming a flow gap 32 between the conical adjustment ring 31 and the first O-ring 30. When the rod 29 drives the conical adjustment ring 31 to move axially along the rod 29, the flow gap 32 increases or decreases. By operating the rod 29 along its own axial movement, the size of the flow gap 32 between the conical adjustment ring 31 and the first O-ring 30 can be changed, thereby achieving the effect of regulating the flow rate to meet the requirements of different models.

[0044] As attached Figure 7 and attached Figure 8As shown, the hot water combination valve also includes an adjusting seat 33 and an adjusting bolt 34. The outer end of the third cavity 8 is provided with a first mounting port 63 (the outer end of the third cavity 8 is detachably installed with a cover by a screw, and the first mounting port 63 is provided on the cover). The adjusting seat 33 is rotatably set on the first mounting port 63. A screw hole 35 is provided in the adjusting seat 33. The adjusting bolt 34 is provided with an external thread 36 that cooperates with the screw hole 35. A guide groove 61 is opened on the inner wall of the third cavity 8 along the axial direction of the adjusting bolt 34. The adjusting bolt 34 is provided with a slider 37 that cooperates with the guide groove 61. A mounting hole 38 is opened on the adjusting bolt 34 along the axial direction. The end of the material rod 29 close to the adjusting seat 33 is inserted into the mounting hole 38, and the two are interference fit. The end of the material rod 29 away from the adjusting seat 33 is provided with a tightening portion 39 with a semicircular cross-section for pressing the conical adjusting ring 31 on the inner end surface of the adjusting bolt 34. By rotating the adjustment seat 33 clockwise or counterclockwise, the adjustment bolt 34 is driven to slide axially, and the adjustment bolt 34 drives the material rod 29 to slide axially, and then drives the conical adjustment ring 31 to slide axially, thereby changing the size of the flow gap 32 and achieving the effect of adjusting the flow rate. The operation is very convenient.

[0045] As attached Figure 8 As shown, the inner end of the adjustment seat 33 is provided with a first limiting flange 40 for abutting against the inner wall of the valve body 1. A second limiting flange 41 is provided near the outer end of the adjustment seat 33 for abutting against the outer wall of the valve body 1. An elastic ring 42 is provided at the outer end of the first mounting opening 63, with a guide slope 43 extending inward. A first sealing groove 44 is defined along the outer periphery of the adjustment seat 33, and a second O-ring 45 is embedded in the first sealing groove 44 for sealing against the inner wall of the first mounting opening 63. This design enables the adjustment seat 33 to be installed and limited in position, allowing it to rotate stably on the first mounting opening 63.

[0046] As attached Figure 9 As shown, the inner wall of the conical adjustment ring 31 is provided with a plurality of reinforcing ribs 46 along the circumferential direction, and the reinforcing ribs 46 extend axially along the conical adjustment ring 31. This design can improve the overall strength of the conical adjustment ring 31 and prevent it from being deformed significantly during long-term use, which may affect the accuracy of flow regulation.

[0047] As attached Figure 8 As shown, a second sealing groove 47 is provided on the inner wall of the second cavity 7, and a fixing seat 48 for pressing the first O-ring 30 against the second sealing groove 47 is also welded on the inner wall of the second cavity 7. This design can achieve a secure installation of the first O-ring 30.

[0048] As attached Figure 7 and attached Figure 10As shown, the hot water combination valve also includes a pressure switch assembly 49, which includes a pressure diaphragm 50, an end cover 51, a pressure piston 52, a first spring 53, a spring button 54 and a second spring 55. The outer end of the second cavity 7 is provided with a second mounting port 56, and a second clamping groove 57 is circumferentially provided on the second mounting port 56. The end cover 51 is installed on the second mounting port 56 and presses the edge of the pressure diaphragm 50 into the second clamping groove 57. The pressure piston 52 is arranged between the pressure diaphragm 50 and the end cover 51. One end of the first spring 53 rests on the inner end surface of the end cap 51, and the other end of the first spring 53 rests on the outer end surface of the pressure piston 52. The pressure piston 52 is provided with a cylindrical portion 58 that extends through the end cap 51. The spring button 54 is provided through the cylindrical portion 58. One end of the second spring 55 rests on the inner end surface of the cylindrical portion 58, and the other end of the second spring 55 rests on the inner end surface of the spring button 54. The cylindrical portion 58 is provided with an axial guide hole 59. The spring button 54 is provided with an anti-disengagement hook 60 on the side that cooperates with the guide hole 59. When the pressure in the second cavity 7 reaches the set value, a bulge forms in the center of the pressure diaphragm 50, pushing the pressure piston 52 upward and causing the spring button 54 to move upward at the same time. When the pressure decreases, the first spring 53 presses the pressure piston 52 downward, causing the spring button 54 to move downward at the same time. This determines the pressure level in the second cavity 7, giving the valve the function of high and low water pressure detection.

Claims

1. A new type of hot water combination valve, comprising a valve body (1), a water retaining plate assembly (2), a valve core assembly (3) and a coil assembly (4), wherein the valve body (1) is provided with a water inlet (5), a first cavity (6), a second cavity (7), a third cavity (8) and a water outlet (9) which are interconnected, a flow port (10) is provided between the first cavity (6) and the second cavity (7), the coil assembly (4) is mounted on the valve body (1), a valve core sleeve (11) is provided in the coil assembly (4), the valve core assembly (3) is axially slidably arranged in the valve core sleeve (11), and a return spring (12) acting on the valve core assembly (3) is provided in the valve core sleeve (11), the water retaining plate assembly (2) is arranged in the first cavity (6) and cooperates with the valve core assembly (3) to control the opening and closing of the flow port (10); and the characteristics are: The water retaining disc assembly (2) includes a water retaining disc (13) and a water retaining diaphragm (14), wherein the water retaining diaphragm (14) includes a sealing disc (15) for forming a sealing fit with the flow port (10) and an elastic portion (62) arranged on the edge of the sealing disc (15), wherein the elastic portion (62) is mounted on the inner wall of the first cavity (6), the water retaining disc (13) is mounted on the sealing disc (15), and the elastic portion (62) covers the outer periphery of the water retaining disc (13), a flow guide portion (16) penetrating the sealing disc (15) is provided in the middle of the water retaining disc (13), a flow guide hole (17) is opened in the axial direction on the flow guide portion (16), and the sealing disc (15) is provided on one end surface close to the water retaining disc (13). An annular groove (18) is provided along the circumferential direction, and a plurality of side holes (19) are provided along the circumferential direction at the inner end of the annular groove (18) and are connected to the second cavity (7). The edge of the water retaining plate (13) is provided with a plurality of boosting grooves (20) for connecting the annular groove (18) with the first cavity (6); and a flow regulating assembly (28) is also included. The flow regulating assembly (28) includes a material rod (29) slidably arranged in the third cavity (8) and a first O-ring (30) installed on the inner wall of the second cavity (7). A conical regulating ring (31) is installed on the material rod (29), and a flow gap (32) is formed between the conical regulating ring (31) and the first O-ring (30). The material rod (29) drives the material rod (29) to move the material rod (29) and the first O-ring (30). When the conical adjustment ring (31) moves axially along the material rod (29), the flow gap (32) becomes larger or smaller; the pressure switch assembly (49) is also included, and the pressure switch assembly (49) includes a pressure diaphragm (50), an end cover (51), a pressure piston (52), a first spring (53), a spring button (54) and a second spring (55). The outer end of the second cavity (7) is provided with a second mounting port (56), and a second clamping groove (57) is provided on the second mounting port (56) along the circumferential direction. The end cover (51) is installed on the second mounting port (56) and presses the edge of the pressure diaphragm (50) into the second clamping groove (57). The pressure piston (52) is arranged on the pressure diaphragm. (50) and the end cover (51), one end of the first spring (53) abuts against the inner end surface of the end cover (51), and the other end of the first spring (53) abuts against the outer end surface of the pressure piston (52). The pressure piston (52) is provided with a cylindrical portion (58) that passes through the end cover (51). The spring button (54) is provided through the cylindrical portion (58). One end of the second spring (55) abuts against the inner end surface of the cylindrical portion (58), and the other end of the second spring (55) abuts against the inner end surface of the spring button (54). A guide hole (59) is opened in the axial direction on the cylindrical portion (58). The side of the spring button (54) is provided with an anti-disengagement hook (60) that matches the guide hole (59).

2. A new hot water combination valve according to claim 1, characterized in that: A conical guide portion (21) is provided at one end of the flow guide portion (16) away from the coil assembly (4), and an annular clamping gap (22) for embedding the sealing disk (15) is provided between the conical guide portion (21) and the water retaining disk (13).

3. A new hot water combination valve according to claim 1, characterized in that: The guide portion (16) is provided at one end close to the valve core assembly (3) with a tapered contact portion (23) for cooperating with the valve core assembly (3) and having a smaller upper portion and a larger lower portion.

4. A new hot water combination valve according to claim 1, characterized in that: The inner edge of the valve core sleeve (11) is provided with an annular claw (24) with an inverted U-shaped cross section, the inner wall of the first cavity (6) is provided with a first clamping groove (25) with a U-shaped cross section, the edge of the elastic portion (62) is provided with a clamping portion (26), the outer end of the first cavity (6) is provided with a pressing ring (27) for abutting against the outer end of the annular claw (24), and the annular claw (24) presses the clamping portion (26) into the first clamping groove (25) under the action of the pressing ring (27).

5. The new hot water combination valve according to claim 1 is characterized in that: The third cavity (8) further comprises an adjusting seat (33) and an adjusting bolt (34); the outer end of the third cavity (8) is provided with a first mounting port (63); the adjusting seat (33) is rotatably arranged on the first mounting port (63); a screw hole (35) is provided in the adjusting seat (33); the adjusting bolt (34) is provided with an external thread (36) matched with the screw hole (35); a guide groove (61) is provided on the inner wall of the third cavity (8) along the axial direction of the adjusting bolt (34); ), the adjusting bolt (34) is provided with a slider (37) matched with the guide groove (61), the adjusting bolt (34) is provided with a mounting hole (38) along the axial direction, the end of the material rod (29) close to the adjusting seat (33) is inserted into the mounting hole (38), and the end of the material rod (29) away from the adjusting seat (33) is provided with a tightening portion (39) with a semicircular cross-section for pressing the conical adjusting ring (31) onto the inner end surface of the adjusting bolt (34).

6. A new hot water combination valve according to claim 5, characterized in that: The inner end of the adjusting seat (33) is provided with a first limiting flange (40) for abutting against the inner wall of the valve body (1), and the position of the adjusting seat (33) near the outer end is provided with a second limiting flange (41) for abutting against the outer wall of the valve body (1). The outer end of the first mounting opening (63) is provided with an elastic ring (42), and the elastic ring (42) is provided with a guiding inclined surface (43) extending toward the inner periphery. A first sealing groove (44) is provided along the outer periphery of the adjusting seat (33), and a second O-ring (45) for forming a sealing fit with the inner wall of the first mounting opening (63) is embedded in the first sealing groove (44).

7. The new hot water combination valve according to claim 1, characterized in that: A plurality of reinforcing ribs (46) are provided on the inner wall of the conical adjustment ring (31) along the circumferential direction, and the reinforcing ribs (46) extend axially along the conical adjustment ring (31).

8. The new hot water combination valve according to claim 1, characterized in that: A second sealing groove (47) is provided on the inner wall of the second cavity (7), and a fixing seat (48) for pressing the first O-ring (30) against the second sealing groove (47) is also welded on the inner wall of the second cavity (7).

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