CN114838188A - Novel hot water combination valve - Google Patents

Abstract

The invention discloses a novel hot water combination valve which comprises a valve body, a water retaining disc component, a return spring, a valve core component and a coil component, wherein the valve body is provided with a water inlet, a first cavity, a second cavity, a third cavity and a water outlet, and an overflow port is arranged 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 is installed on the inner wall of the first cavity, the water retaining disc is installed on the sealing disc, the elastic portion covers the periphery of the water retaining disc, the middle of the water retaining disc is provided with a flow guide portion penetrating through the sealing disc, the flow guide portion is provided with a flow guide hole along the axial direction, the sealing disc is close to one end face of the water retaining disc, the annular groove is formed in the end face of the annular groove along the circumferential direction, the edge of the water retaining disc is provided with a plurality of pressure rising grooves. The invention not only solves the problem of foreign matter scale blockage, but also has the function of flow regulation, thereby achieving the purpose of high universality.

Description

A new type of hot water combination valve

technical field

The invention relates to the technical field of solenoid valves, in particular to a novel hot water combination valve.

Background technique

Solenoid valve is an industrial equipment controlled by electromagnetic, and it is an automatic basic component used to control fluid. It belongs to actuator and is not limited to hydraulic and pneumatic. Used in industrial control systems to adjust the direction, flow, speed and other parameters of the medium. The solenoid valve can be matched with different circuits to achieve the desired control, and the control accuracy and flexibility can be guaranteed. There are many kinds of solenoid valves. Different solenoid valves play a role in different positions of the control system. The most commonly used ones are check valves, safety valves, directional control valves, speed control valves, etc. The principle of the solenoid valve: when the power is turned on, the solenoid coil generates an electromagnetic force to lift the closing member from the valve seat, and the valve opens; when the power is off, the electromagnetic force disappears, the spring presses the closing member on the valve seat, and the valve closes.

The existing hot water solenoid valve on the market is mainly composed of a valve body, a water retaining plate part, a sealing silicone part, a spring, and a flow component. The solenoid valve is opened by energizing the coil, and the flow component is used to satisfy required flow requirements. However, the hot water solenoid valve has the following problems:

1. The existing solenoid valve on the market adopts the pilot type (side hole boosting, central hole buckling) to achieve the effect of solenoid valve switching, and it is easy to cause the solenoid valve to fail due to problems such as foreign matter and scale;

2. The flow rate of the solenoid valves on the market cannot be adjusted. Generally, fixed throttling or current limiting components are used, which can only meet the flow requirements of a certain or several sections of water pressure, and cannot be universal.

SUMMARY OF THE INVENTION

The purpose 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.

In order to achieve the above purpose, the present invention provides the following technical solutions: a novel hot water combination valve, comprising a valve body, a water retaining plate assembly, a valve core assembly and a coil assembly, and the valve body is provided with an interconnected water inlet, a first a cavity, a second cavity, a third cavity and a water outlet, an overflow port is provided between the first cavity and the second cavity, the coil assembly is installed on the valve body, and the coil assembly is provided with There is a valve core sleeve, the valve core assembly is axially slidably arranged in the valve core sleeve, and the valve core sleeve is provided with a return spring acting on the valve core assembly, and the water retaining plate assembly is arranged in the first cavity It cooperates with the valve core assembly to control the opening and closing of the overflow port; the water blocking plate assembly includes a water blocking disk and a water blocking diaphragm, and the water blocking diaphragm includes a sealing disk for sealingly matching with the overflow port, and a set of In the elastic part of the edge of the sealing disc, the elastic part is installed on the inner wall of the first cavity, the water retaining disc is installed on the sealing disc, and the elastic part wraps the outer circumference of the water retaining disc to prevent water The middle part of the disc is provided with a guide part that penetrates the sealing disc, the guide part is provided with a guide hole in the axial direction, and the end surface of the sealing disc close to the water blocking disc is provided with an annular groove along the circumferential direction. The inner end of the groove is provided with a plurality of side holes that communicate with the second cavity along the circumferential direction, and the edge of the water retaining plate is provided with a plurality of boosting grooves for connecting the annular groove with the first cavity. .

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 the structure of two boosting grooves is adopted, and the sealing disc adopts a porous structure, that is, a plurality of side holes, The annular groove on the sealing plate and the booster groove on the water retaining plate are connected to each other. During the boosting, the medium enters the water retaining plate assembly through the side hole, the annular groove and the boosting groove in sequence from the bottom of the water retaining plate assembly. Above, the structure improves the patency of the boosting channel and solves the problem of clogging by foreign matter and scale.

According to the present invention, a tapered guide portion is provided at one end of the air guide portion away from the coil assembly, and an annular clamping gap for embedding the sealing disc is provided between the tapered guide portion and the water retaining disc.

By adopting the above technical solution, the conical guide portion can guide the movement of the water retaining plate assembly, so that it can move up and down smoothly, and at the same time, the sealing plate is embedded in the annular clamping gap, and its connection structure is simple, which is convenient for early assembly. and subsequent maintenance operations.

The present invention further provides that, one end of the flow guide portion close to the valve core assembly is provided with a conical contact portion that is used for matching with the valve core assembly and is small at the top and large at the bottom.

By adopting the above technical solution, the guide hole can be effectively blocked when the valve core assembly is pressed down on the conical contact part, and the flatness requirement on the upper surface of the conical contact part can be reduced, which not only has good sealing performance, but also facilitates processing. .

According to the present invention, the inner edge of the valve core sleeve is provided with an annular claw with an inverted U-shaped structure in cross section, and a first clamping groove with a U-shaped structure in cross section is provided on the inner wall of the first cavity. The edge of the elastic part is provided with a clamping part, the outer end of the first cavity is provided with a pressure ring for abutting against the outer end of the annular claw, and the annular claw presses the clamping part under the action of the pressure ring. in the first snap slot.

By adopting the above technical solution, the fixed installation of the sealing disc can be realized, and the installation structure is firm and reliable, and the sealing performance is good.

The present invention is further configured to further include a flow adjustment assembly, the flow adjustment assembly comprising a material rod slidably arranged in the third cavity and a first O-ring mounted on the inner wall of the second cavity, the material rod A conical adjusting ring is installed, and an over-current gap is formed between the conical adjusting ring and the first O-ring. When the material rod drives the conical adjusting ring to move axially along the material rod, the over-current gap becomes larger or smaller.

By adopting the above technical solution, the size of the overcurrent gap between the conical adjusting ring and the first O-ring can be changed by operating the material rod to move along its own axis, so as to achieve the effect of adjusting the flow rate to meet the needs of different machines. type requirements.

The present invention is further arranged to further comprise an adjustment seat and an adjustment bolt, the outer end of the third cavity is provided with a first installation port, the adjustment seat is rotatably arranged on the first installation port, and the adjustment seat is provided with a screw The adjusting bolt is provided with an external thread matched with the screw hole, the inner wall of the third cavity is provided with a guide groove along the axial direction of the adjusting bolt, and the adjusting bolt is provided with a The sliding block matched with the guide groove, the adjustment bolt is provided with a mounting hole in the axial direction, the end of the material rod close to the adjustment seat is inserted into the installation hole, and the end of the material rod away from the adjustment seat is provided with a cross-sectional shape. The semicircular shape is used to press the conical adjusting ring on the abutting part on the inner end face of the adjusting bolt.

By adopting the above technical solution, by rotating the adjusting seat, the adjusting bolt is driven to slide along the axial direction, the adjusting bolt drives the material rod to slide along the axial direction, and then drives the conical adjusting ring to slide along the axial direction, so as to realize the change of the size of the overflow gap. , to achieve the effect of regulating the flow, the operation is very convenient.

According to the present invention, the inner end of the adjustment seat is provided with a first limiting flange for abutting on the inner wall of the valve, and the position of the adjustment seat close to the outer end is provided with a second limiting flange for abutting on the outer wall of the valve. The outer end of the first installation port is provided with an elastic ring, the elastic ring is provided with a guiding slope extending toward the inner circumference, and the outer periphery of the adjustment seat is provided with a first sealing groove. A second O-ring for sealing with the inner wall of the first installation opening is embedded in the sealing groove.

By adopting the above technical solution, the installation and position limit of the adjustment seat can be realized, so that it can rotate on the first installation port stably.

According to the present invention, a plurality of reinforcing ribs are arranged on the inner wall of the conical adjusting ring in the circumferential direction, and the reinforcing ribs extend axially along the conical adjusting ring.

By adopting the above technical solution, the overall strength of the conical adjusting ring can be improved, and the large deformation of the conical adjusting ring can be avoided during long-term use, which affects the accuracy of the flow adjustment.

According to the present invention, the inner wall of the second cavity is provided with a second sealing groove, and the inner wall of the second cavity is also welded with a fixing device for pressing the first O-ring on the second sealing groove. seat.

By adopting the above technical solution, the firm installation of the first O-ring can be achieved.

The present invention is further provided to further include a pressure switch assembly, the pressure switch assembly 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 The second installation port, the second installation port is provided with a second clamping groove along the circumferential direction, and the end cover is installed on the second installation port and presses the edge of the pressure diaphragm in the second clamping groove, so The pressure piston is arranged between the pressure diaphragm and the end cover, one end of the first spring is pressed against the inner end surface of the end cover, the other end of the first spring is pressed against the outer end surface of the pressure piston, and the pressure piston is provided with There is a cylindrical portion penetrating the end cover, the spring button is arranged on the cylindrical portion, one end of the second spring is pressed against the inner end surface of the cylindrical portion, and the other end of the second spring is pressed against the inner surface of the spring button. On the end face, the cylindrical portion is provided with a guide hole along the axial direction, and the side portion of the spring button is provided with an anti-releasing hook matched with the guide hole.

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, and the pressure piston is pushed up, so that the spring button moves upward at the same time; when the pressure decreases, the first spring will The pressure piston is pressed down, and the spring button moves down at the same time, so as to judge the pressure in the second cavity, so that the valve has the function of high and low water pressure detection.

Description of drawings

FIG. 1 is a schematic structural diagram of a first viewing angle of the present invention as a whole;

2 is a schematic structural diagram of the second viewing angle of the present invention as a whole;

Fig. 3 is A-A sectional view of Fig. 1;

4 is a schematic structural diagram of a water retaining plate assembly of the present invention;

Fig. 5 is the structural representation of the water retaining plate of the present invention;

Fig. 6 is the structural schematic diagram of the water blocking membrane of the present invention;

Fig. 7 is the B-B sectional view of Fig. 2;

Fig. 8 is the C-C sectional view of Fig. 1;

Fig. 9 is the structural representation of the conical adjustment ring of the present invention;

FIG. 10 is a schematic diagram of the matching structure of the pressure piston and the spring button according to the present invention.

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 type Cavity; 9. Water outlet; 10. Overflow port; 11. Valve core sleeve; 12. Return spring; 13. Water retaining plate; 14. Water retaining diaphragm; 15. Sealing plate; 16. Diversion part; 17. Guide hole; 18, annular groove; 19, side hole; 20, booster groove; 21, tapered guide part; 22, annular clamping gap; 23, tapered contact part; 24, annular claw; 25, first Snap groove; 26, snap part; 27, pressure ring; 28, flow adjustment component; 29, material rod; 30, first O-ring; 31, conical adjustment ring; 32, overcurrent clearance; 33, adjustment seat; 34, adjusting bolt; 35, screw hole; 36, external thread; 37, slider; 38, mounting hole; 39, abutting part; 40, first limit flange; 41, second limit flange 42, elastic ring; 43, guide slope; 44, first sealing groove; 45, second O-ring; 46, reinforcing rib; 47, second sealing groove; 48, fixing seat; 49, pressure switch assembly; 50 51, end cap; 52, pressure piston; 53, first spring; 54, spring button; 55, second spring; 56, second installation port; 57, second snap groove; 58, circle Cylinder part; 59, guide hole; 60, anti-decoupling; 61, guide groove; 62, elastic part; 63, first installation port.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Example: A new type of hot water combination valve as shown in Figures 1 to 10 includes a valve body 1, a water retaining plate assembly 2, a valve core assembly 3 and a coil assembly 4. The valve body 1 is provided with interconnected The water inlet 5, the first cavity 6, the second cavity 7, the third cavity 8 and the water outlet 9, the first cavity 6 and the second cavity 7 are provided with an overflow port 10, so The coil assembly 4 is installed on the valve body 1, the coil assembly 4 is provided with a valve core sleeve 11, the valve core assembly 3 is axially slidably arranged in the valve core sleeve 11, and the valve core sleeve 11 is provided with a The return spring 12 of the valve core assembly 3, 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 overflow port 10, that is, the return spring 12 acts on the valve core assembly in the initial state 3, so that the valve core assembly 3 presses the water retaining plate assembly 2 on the overflow port 10; the water retaining plate assembly 2 includes a water retaining plate 13 and a water retaining membrane 14, and the water retaining membrane 14 includes The sealing disc 15 and the overflow port 10 constitute a sealing disc 15 and an elastic part 62 arranged on the edge of the sealing disc 15. The elastic part 62 has an inverted U-shaped structure, and the elastic part 62 is installed on the inner wall of the first cavity 6. The water blocking disc 13 is installed on the sealing disc 15 , and the elastic portion 62 covers the outer circumference of the water blocking disc 13 . The flow portion 16 is provided with a guide hole 17 in the axial direction, and an annular groove 18 is formed in the circumferential direction on one end surface of the sealing disc 15 close to the water blocking plate 13 . a side hole 19 communicated with the second cavity 7 , and a plurality of pressure 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 the 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 the pressure, the water retaining plate assembly 2 moves upward as a whole, and the first cavity 6 and the first cavity 6 move upward. The second cavity and 7 phases are connected. The hot water combination valve improves the structure of the original hot water valve water retaining plate 13 with only one boosting hole, adopts the structure of two boosting grooves 20, and the sealing disc 15 adopts a porous structure, that is, a plurality of pressure boosting holes on the sealing disc 15 are adopted. The side hole 19, the annular groove 18 on the sealing disc 15 and the pressure boosting groove 20 on the water retaining plate 13 are connected to each other, and the medium passes through the side hole 19 and the annular groove in sequence from the bottom of the water retaining plate assembly 2 during boosting. 18 and the boosting groove 20 enter above the water retaining plate assembly 2. This structure improves the smoothness of the boosting channel and solves the problem of clogging by foreign matter and scale.

As shown in FIG. 4 and FIG. 5 , a tapered guide portion 21 is provided at one end of the guide portion 16 away from the coil assembly 4 , and a tapered guide portion 21 is provided between the tapered guide portion 21 and the water retaining plate 13 for embedding The annular clamping gap 22 of the sealing disk 15 is sealed. The tapered guide portion 21 can guide the movement of the water retaining plate assembly 2, so that it can move up and down smoothly. At the same time, the sealing plate 15 is embedded in the annular clamping gap 22, and its connection structure is simple, which is convenient for the early assembly and the later stage. maintenance operations.

As shown in FIG. 4 and FIG. 5 , one end of the guide portion 16 close to the valve core assembly 3 is provided with a conical contact portion 23 that is used for matching with the valve core assembly 3 and is small in the upper part and large in the lower part. When the valve core assembly 3 comes down, it can effectively block the diversion hole 17 and reduce the flatness requirement on the upper surface of the conical contact part 23. It not only has good sealing performance, but also facilitates processing.

As shown in FIG. 4 , the inner edge of the valve core sleeve 11 is provided with an annular claw 24 with an inverted U-shaped structure in cross-section, and a first clamp with a U-shaped structure is provided on the inner wall of the first cavity 6 Connecting groove 25, the edge of the elastic portion 62 is provided with a clip portion 26, the outer end of the first cavity 6 is provided with a pressure ring 27 for abutting against the outer end of the annular claw 24, the pressure ring 27 can be screwed or The threaded connection is installed at the outer end of the first cavity 6 , and the annular claw 24 presses the engaging portion 26 in the first engaging groove 25 under the action of the pressing ring 27 . The design can realize the fixed installation of the sealing disc 15, and the installation structure is firm and reliable, and the sealing performance is good.

As shown in FIG. 7 and FIG. 8 , the combined hot water valve further includes a flow adjustment assembly 28 , and the flow adjustment assembly 28 includes a material rod 29 slidably arranged in the third cavity 8 and installed in the second cavity 7. The first O-ring 30 on the inner wall, the tapered adjusting ring 31 is installed on the material rod 29, a flow gap 32 is formed between the tapered adjusting ring 31 and the first O-ring 30, and the material rod 29 drives the cone When the shape adjusting ring 31 moves axially along the material rod 29, the overflow gap 32 becomes larger or smaller. By operating the material rod 29 to move along its own axial direction, the size of the overcurrent gap 32 between the conical adjusting ring 31 and the first O-ring 30 can be changed, so as to achieve the effect of adjusting the flow to meet the needs of different models. Require.

As shown in FIG. 7 and FIG. 8 , the hot water combination valve further includes an adjustment seat 33 and an adjustment bolt 34 , and the outer end of the third cavity 8 is provided with a first installation port 63 (outside the third cavity 8 ). A cover is detachably installed at the end through screws, and the first installation port 63 is provided on the cover), the adjustment seat 33 is rotatably arranged on the first installation port 63, and the adjustment seat 33 is provided with a screw hole 35, so The adjusting bolt 34 is provided with an external thread 36 that matches the screw hole 35 , the inner wall of the third cavity 8 is provided with a guide groove 61 along the axial direction of the adjusting bolt 34 , and the adjusting bolt 34 is provided with a guide groove 61 . There is a slider 37 matched with the guide groove 61, a mounting hole 38 is formed on the adjusting bolt 34 in the axial direction, and one end of the material rod 29 close to the adjusting seat 33 is inserted in the mounting hole 38, and the two For interference fit, the end of the material rod 29 away from the adjusting seat 33 is provided with a pressing 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 adjusting seat 33 clockwise or counterclockwise, the adjusting bolt 34 is driven to slide in the axial direction, and the adjusting bolt 34 drives the material rod 29 to slide in the axial direction, thereby driving the conical adjusting ring 31 to slide in the axial direction, so that the The change of the size of the flow gap 32 achieves the effect of regulating the flow, and the operation is very convenient.

As shown in FIG. 8 , the inner end of the adjusting seat 33 is provided with a first limiting flange 40 for abutting on the inner wall of the valve body 1 , and the position near the outer end of the adjusting seat 33 is provided with a first limiting flange 40 for abutting against the valve body 1 The second limiting flange 41 on the outer wall, the outer end of the first installation port 63 is provided with an elastic ring 42, the elastic ring 42 is provided with a guiding inclined surface 43 extending toward the inner circumference, the outer circumference of the adjustment seat 33 A first sealing groove 44 is formed along the opening, and a second O-ring 45 is embedded in the first sealing groove 44 to form a sealing fit with the inner wall of the first installation port 63 . This design can realize the installation and position limit of the adjusting seat 33 , so that it can stably rotate on the first installation port 63 .

As shown in FIG. 9 , a plurality of reinforcing ribs 46 are arranged on the inner wall of the conical adjusting ring 31 in the circumferential direction, and the reinforcing ribs 46 extend axially along the conical adjusting ring 31 . This design can improve the overall strength of the conical adjusting ring 31, and avoid large deformation during long-term use, thereby affecting the accuracy of flow adjustment.

As shown in FIG. 8 , the inner wall of the second cavity 7 is provided with a second sealing groove 47 , and the inner wall of the second cavity 7 is also welded with a second sealing groove 47 for pressing the first O-ring 30 on the second cavity 7 . The fixing seat 48 on the sealing groove 47 . This design enables secure installation of the first O-ring 30 .

As shown in FIG. 7 and FIG. 10 , the hot water combination valve further includes a pressure switch assembly 49 , the pressure switch assembly 49 includes a pressure diaphragm 50 , an end cover 51 , a pressure piston 52 , a first spring 53 , and a spring button 54 and the second spring 55, the outer end of the second cavity 7 is provided with a second installation port 56, the second installation port 56 is provided with a second snap groove 57 along the circumferential direction, the end cover 51 Installed on the second installation port 56 and pressed the edge of the pressure diaphragm 50 in the second snap groove 57, the pressure piston 52 is arranged between the pressure diaphragm 50 and the end cover 51, the first spring One end of 53 abuts on the inner end surface of the end cover 51, and the other end of the first spring 53 abuts on the outer end surface of the pressure piston 52. The button 54 is arranged through the cylindrical portion 58 , one end of the second spring 55 abuts on the inner end surface of the cylindrical portion 58 , the other end of the second spring 55 abuts on the inner end surface of the spring button 54 , the circular A guide hole 59 is provided on the cylindrical portion 58 in the axial direction, and a side portion of the spring button 54 is provided with an anti-releasing hook 60 matched with the guide hole 59 . When the pressure in the second cavity 7 reaches the set value, a bulge is formed in the middle of the pressure diaphragm 50, and the pressure piston 52 is pushed up, so that the spring button 54 moves upward at the same time; when the pressure decreases, the first spring 53 will press When the piston 52 is pressed down, the spring button 54 moves down at the same time, so as to judge the pressure in the second cavity 7, so that the valve has the function of detecting high and low water pressure.

Claims (10)

1. A novel hot water combination valve comprises a valve body (1), a water retaining disc component (2), a valve core component (3) and a coil component (4), a water inlet (5), a first cavity (6), a second cavity (7), a third cavity (8) and a water outlet (9) which are communicated with each other are arranged on the valve body (1), an overflow port (10) is arranged between the first cavity (6) and the second cavity (7), the coil component (4) is arranged on the valve body (1), a valve core sleeve (11) is arranged in the coil component (4), the valve core component (3) is arranged in the valve core sleeve (11) in an axial sliding manner, and a return spring (12) acting on the valve core component (3) is arranged in the valve core sleeve (11), the water retaining disc assembly (2) is arranged in the first cavity (6) and is matched with the valve core assembly (3) to control the opening and closing of the overflowing port (10); the method is characterized in that: the water retaining disc assembly (2) comprises a water retaining disc (13) and a water retaining diaphragm (14), the water retaining diaphragm (14) comprises a sealing disc (15) which is used for forming a sealing fit with the overflowing port (10) and an elastic part (62) which is arranged at the edge of the sealing disc (15), the elastic part (62) is arranged on the inner wall of the first cavity (6), the water retaining disc (13) is arranged on the sealing disc (15), the elastic part (62) covers the periphery of the water retaining disc (13), a flow guide part (16) which penetrates through the sealing disc (15) is arranged in the middle of the water retaining disc (13), a flow guide hole (17) is formed in the flow guide part (16) in the axial direction, an annular groove (18) is formed in the circumferential direction on the end face, close to the water retaining disc (13), of the annular groove (18) and a plurality of side holes (19) communicated with the second cavity (7) are formed in the circumferential direction in the inner end of the annular groove (18), the edge of the water retaining disc (13) is provided with a plurality of pressure rising grooves (20) used for communicating the annular groove (18) with the first cavity (6).

2. A novel hot water combination valve as claimed in claim 1, wherein: one end that coil pack (4) were kept away from in water conservancy diversion portion (16) is equipped with toper guide part (21), be equipped with between toper guide part (21) and manger plate (13) and be used for inlaying annular clamping gap (22) of establishing sealed dish (15).

3. A novel hot water combination valve as claimed in claim 1, wherein: one end of the flow guide part (16) close to the valve core assembly (3) is provided with a conical contact part (23) which is used for being matched with the valve core assembly (3) and is small in upper part and large in lower part.

4. A novel hot water combination valve as claimed in claim 1, wherein: the valve core sleeve is characterized in that an annular claw (24) with an inverted U-shaped structure in cross section is arranged at the edge of the inner end of the valve core sleeve (11), a first clamping groove (25) with a U-shaped structure in cross section is formed in the inner wall of the first cavity (6), a clamping portion (26) is arranged at the edge of the elastic portion (62), a pressing ring (27) used for abutting against the outer end of the annular claw (24) is arranged at the outer end of the first cavity (6), and the annular claw (24) is pressed in the first clamping groove (25) under the action of the pressing ring (27).

5. A novel hot water combination valve as claimed in claim 1, wherein: still include flow control assembly (28), flow control assembly (28) are including material pole (29) that slide setting is in third die cavity (8) and install first O shape circle (30) on second die cavity (7) inner wall, install toper regulation circle (31) on material pole (29), form between toper regulation circle (31) and first O shape circle (30) and overflow clearance (32), when material pole (29) drive toper regulation circle (31) along material pole (29) axial displacement, overflow clearance (32) grow or diminish.

6. The novel hot water combination valve as claimed in claim 5, wherein: also comprises an adjusting seat (33) and an adjusting bolt (34), the outer end of the third cavity (8) is provided with a first mounting opening (63), the adjusting seat (33) is rotatably arranged on the first mounting port (63), a screw hole (35) is arranged 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 arranged 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 slide block (37) matched with the guide groove (61), the adjusting bolt (34) is provided with an installation hole (38) along the axial direction, one end of the material rod (29) close to the adjusting seat (33) is inserted in the installation hole (38), one end of the material rod (29) far away from the adjusting seat (33) is provided with a propping part (39) with a semicircular section for pressing the conical adjusting ring (31) on the inner end surface of the adjusting bolt (34).

7. The novel hot water combination valve as claimed in claim 6, wherein: adjust seat (33) inner and be equipped with and be used for supporting first limit flange (40) on valve body (1) inner wall, the position that adjusts seat (33) and be close to the outer end is equipped with and is used for supporting second limit flange (41) on valve body (1) outer wall, the outer end of first installing port (63) is equipped with elastic ring (42), be equipped with direction inclined plane (43) that extend to the week on elastic ring (42), adjust seat (33) periphery along having seted up first seal groove (44), inlay on first seal groove (44) and be equipped with and be used for constituting sealed complex second O shape circle (45) with first installing port (63) inner wall.

8. A novel hot water combination valve as claimed in claim 5, wherein: a plurality of reinforcing ribs (46) are arranged on the inner wall of the conical adjusting ring (31) along the circumferential direction, and the reinforcing ribs (46) axially extend along the conical adjusting ring (31).

9. The novel hot water combination valve as claimed in claim 5, wherein: and a second sealing groove (47) is formed in the inner wall of the second cavity (7), and a fixing seat (48) used for pressing the first O-shaped ring (30) on the second sealing groove (47) is further welded on the inner wall of the second cavity (7).

10. A novel hot water combination valve as claimed in claim 1, wherein: the pressure switch assembly (49) comprises a pressure membrane (50), an end cover (51), a pressure piston (52), a first spring (53), a spring button (54) and a second spring (55), a second mounting opening (56) is formed in the outer end of the second cavity (7), a second clamping groove (57) is formed in the second mounting opening (56) along the circumferential direction, the end cover (51) is mounted on the second mounting opening (56) and tightly presses the edge of the pressure membrane (50) in the second clamping groove (57), the pressure piston (52) is arranged between the pressure membrane (50) and the end cover (51), one end of the first spring (53) abuts against the inner end face of the end cover (51), the other end of the first spring (53) abuts against the outer end face of the pressure piston (52), and a cylindrical portion (58) penetrating through the end cover (51) is arranged on the pressure piston (52), the spring button (54) penetrates through the cylindrical portion (58), one end of the second spring (55) abuts against the inner end face of the cylindrical portion (58), the other end of the second spring (55) abuts against the inner end face of the spring button (54), a guide hole (59) is formed in the cylindrical portion (58) in the axial direction, and an anti-disengaging hook (60) matched with the guide hole (59) is arranged on the side portion of the spring button (54).

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