Large-flow silencing constant-temperature valve element

Abstract

The utility model provides a large flow noise reduction constant temperature valve core which comprises a valve body, a base, a constant temperature valve rod, an adjusting valve rod, a thermosensitive element, a piston, an adjusting spring and a cold water inlet silencer, the valve body is connected to the upper portion of the base in a threaded mode, the constant temperature valve rod is connected with the adjusting valve rod, the adjusting valve rod is connected with the thermosensitive element, and the piston is connected to the thermosensitive element. The valve body is provided with a cold water inlet and a hot water inlet, the base is provided with a water outlet, and the constant-temperature valve rod rotates around the axis of the constant-temperature valve rod to drive the adjusting valve rod, the thermosensitive element and the piston to move in the axial direction of the valve body, so that the piston can move back and forth between the cold water inlet and the hot water inlet to adjust the water inflow of the cold water inlet and the hot water inlet. The cold water inlet silencer is arranged on the inner side of the valve body and corresponds to the cold water inlet, a plurality of cold silencing columns are arranged on the cold water inlet silencer and arranged in the circumferential direction of the cold water inlet silencer, and a first preset gap is formed between every two adjacent cold silencing columns; the utility model has the advantages of large flow and silence.

Description

Technical Field

[0001] The utility model relates to the technical field of thermostatic valve cores, in particular to a large-flow silencing thermostatic valve core. Background Art

[0002] Thermostatic valve cores can automatically adjust the mixing ratio of hot and cold water so that the temperature of the mixed water can be automatically maintained within the set temperature range. They are generally used in thermostatic water heaters and thermostatic faucets. However, the overall structure of the current thermostatic valve core is relatively complex, the flow rate is small, and the noise is large when water enters, which leads to poor consumer experience.

[0003] Therefore, in order to avoid the shortcomings of the prior art, it is necessary to improve the prior art. Utility Model Content

[0004] The utility model aims to provide a large flow rate silencing thermostatic valve core.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a large-flow silencer thermostatic valve core, including a valve body, a base, a thermostatic valve stem, an adjusting valve stem, a thermal element, a piston and an adjusting spring. The valve body is screwed to the upper part of the base, and the thermostatic valve stem, the adjusting valve stem, the thermal element and the piston are all arranged in the valve body. The thermostatic valve stem is connected to the adjusting valve stem, the adjusting valve stem is connected to one end of the thermal element, the piston is connected to the outer side of the middle part of the thermal element, the adjusting spring elastically abuts between the thermal element and the base, and the valve body is provided with a cold water inlet and a hot water inlet along its axial arrangement. The base is provided with a A water outlet is provided, and the thermostatic valve stem can rotate around its axis, thereby driving the regulating valve stem, the thermistor and the piston to move axially along the valve body, so that the piston can move back and forth between the cold water inlet and the hot water inlet to adjust the water inlet volume of the cold water inlet and the hot water inlet; the large-flow silencer thermostatic valve core also includes a cold water inlet muffler, which is arranged inside the valve body and corresponds to the cold water inlet, and a plurality of cold muffler columns are arranged on the cold water inlet muffler, and the plurality of cold muffler columns are arranged along the circumference of the cold water inlet muffler, and a first preset gap is provided between two adjacent cold muffler columns.

[0006] It can be seen from the above scheme that by setting up a cold water inlet silencer, it is beneficial to divide the large flow water column of cold water into small streams, so as to reduce the turbulence generated after the cold water enters the valve body, avoid the liquid flow noise caused by the turbulence, and play a silencing role; when the outlet water temperature of the outlet changes, the elongation of the thermistor will change. Under the action of the adjusting spring, the thermistor drives the piston to move up and down to automatically adjust the water inlet volume of cold water and hot water, ensuring that the outlet water temperature remains basically unchanged.

[0007] A further solution is that the cold water inlet muffler is connected to the outside of the regulating valve stem and can move with the regulating valve stem, or the cold water inlet muffler is fixedly arranged on the inner wall of the valve body.

[0008] A further solution is that when the cold water inlet muffler is connected to the regulating valve stem, the cold water inlet muffler includes a cold fixing ring and a hook, the hook is arranged on the inward side of the cold fixing ring, and a plurality of cold muffler columns are arranged on the outward side of the cold fixing ring; a groove is opened on the outer peripheral wall of the regulating valve stem, and the hook is connected with the groove in a matching manner.

[0009] A further solution is that the large-flow silencer thermostatic valve core also includes a hot water inlet silencer, which is arranged in the base and corresponds to the hot water inlet.

[0010] It can be seen from the above scheme that by setting up a hot water inlet silencer, it is beneficial to divide the large flow water column of the hot water inlet into small streams, so as to reduce the turbulence generated after the hot water enters the valve body, avoid the liquid flow noise generated by the turbulence, and play a silencing role.

[0011] A further solution is that the hot water inlet silencer includes a heat fixing ring and a plurality of heat silencer columns, the plurality of heat silencer columns are arranged along the circumference of the heat fixing ring, and a second preset gap is provided between two adjacent heat silencer columns.

[0012] A further solution is that the piston includes a cold ring part, a connecting part and a hot ring part in sequence along its axial direction, a cold water chamber and a cold water groove which are interconnected are formed on the inner side of the cold ring part, the diameter of the cold water chamber gradually narrows toward the cold water groove, a mixing water chamber is formed on the inner side of the hot ring part, the connecting part is provided with a mounting hole and a plurality of cold water through holes, the plurality of cold water through holes are arranged on the periphery of the mounting hole, the cold water through holes are arranged in the cold water groove, the cold water chamber is connected with the mixing water chamber through the cold water groove and the cold water through holes, and the mounting hole is used to connect with the thermistor.

[0013] It can be seen from the above scheme that by setting up a cold water chamber, it plays a buffering and water storage role to increase the water flow and realize the large flow function; by setting up a cold water trough, it is used to collect cold water to the top of the cold water through-hole, which facilitates the cold water to pass through the cold water through-hole quickly, which is beneficial to increase the water output.

[0014] A further solution is that a safety spring and a top cap are arranged between the regulating valve stem and the thermistor; the regulating valve stem includes a first sleeve portion and a second sleeve portion which are interconnected, the safety spring is arranged in the first sleeve portion, the top cap is arranged in the second sleeve portion, and both sides of the top cap are respectively connected to the safety spring and one end of the thermistor, so that the thermistor can move elastically along the axial direction of the regulating valve stem.

[0015] It can be seen from the above scheme that when the cold water supply is lost, the water temperature rises, the thermistor will stretch, and the thermistor drives the piston to move downward to close the hot water inlet, which is beneficial to prevent scalding and ensure the safety of water use; when the thermistor stretches to a certain value, the thermistor can drive the top cap to move upward. At this time, the safety spring is in a compressed state, which is beneficial to prevent the thermistor from being damaged due to excessive elongation, thereby increasing the service life of the thermistor.

[0016] A further solution is that in the axial direction, the second sleeve portion and the connecting portion are correspondingly arranged and have a preset distance, and the preset distance is variable; when the thermostatic valve stem rotates clockwise and drives the regulating valve stem to move downward, the preset distance can be reduced to zero.

[0017] It can be seen from the above scheme that, generally, when the thermostatic valve stem rotates clockwise, the water outlet changes from hot to cold. At this time, the thermostatic valve stem drives the adjusting valve stem to move downward. When the preset distance becomes zero, the second sleeve parts abut against the connecting part. Thereafter, the adjusting valve stem can directly drive the piston to move downward, which is beneficial to reduce the pressure on the thermistor and increase the service life of the thermistor. It can also reduce the rotation angle required by the thermostatic valve stem when discharging cold water, thereby providing a better user experience.

[0018] A further solution is that the large-flow silencer thermostatic valve core also includes a nut, which is arranged in the valve body and screwed on the thermostatic valve stem. The end face of the nut is adjacent to the cold water inlet silencer or the regulating valve stem. When the thermostatic valve stem rotates around its own axis, it can drive the nut to move along its axial direction, thereby driving the regulating valve stem to move.

[0019] It can be seen from the above scheme that by setting the nut, the thermostatic valve stem drives the regulating valve stem to move up and down through the nut, which is beneficial to reducing the overall height of the thermostatic valve core and has the advantages of simple structure and easy installation.

[0020] A further solution is that the large-flow silencer thermostatic valve core also includes a kit, which is arranged in the valve body and is connected to the thermostatic valve stem and the regulating valve stem respectively; the interior of the kit is sequentially provided with a first connecting hole, an abutting portion, and a second connecting hole along its axial direction, the thermostatic valve stem is threadedly connected to the first connecting hole, the regulating valve stem is arranged in the second connecting hole so as to move up and down, and the end of the regulating valve stem is adjacent to the abutting portion, when the thermostatic valve stem rotates around its own axis, it can drive the kit to move along its axial direction, thereby driving the regulating valve stem to move

[0021] It can be seen from the above scheme that by setting the kit, the thermostatic valve stem drives the regulating valve stem to move up and down through the kit, which can help reduce the upper diameter of the thermostatic valve core and increase its overall height, and has the advantages of simple structure and convenient installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a cross-sectional view of the first embodiment of the utility model.

[0023] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0024] Figure 3 yes Figure 1 Enlarged view of point B in the middle.

[0025] Figure 4It is an exploded view of the first embodiment of the utility model.

[0026] Figure 5 It is a structural diagram of the cold water inlet muffler in the first embodiment of the utility model.

[0027] Figure 6 It is a structural diagram of the hot water inlet muffler in the first embodiment of the utility model.

[0028] Figure 7 It is a structural diagram of the piston in the first embodiment of the utility model.

[0029] Figure 8 It is a cross-sectional view of the second embodiment of the utility model.

[0030] Fig. 9 It is an exploded view of the second embodiment of the utility model.

[0031] Fig.10 It is a structural diagram of a kit in the second embodiment of the utility model.

[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0033] The first embodiment of the large flow rate muffler thermostatic valve:

[0034] See also Figures 1 to 4 The large flow rate mute thermostatic valve core provided in this embodiment includes a valve body 1, a base 2, a thermostatic valve stem 3, a nut 4, an adjusting valve stem 5, a thermistor 6, a piston 7, an adjusting spring 30, a cold water inlet muffler 8 and a hot water inlet muffler 9. The valve body 1 is screwed to the upper part of the base 2, and the valve body 1 is provided with a cold water inlet 11 and a hot water inlet 12 arranged along its axial direction, and the cold water inlet 11 is located above the hot water inlet 12. In order to increase the water inlet amount of cold water and hot water, multiple cold water inlets 11 and multiple hot water inlets 12 are provided, and multiple cold water inlets 11 are arranged along the circumference of the valve body 1, and multiple hot water inlets 12 are arranged along the circumference of the valve body 1. A water outlet 21 is provided in the middle of the bottom wall of the base 2, and the water entering from the cold water inlet 11 and the hot water inlet 12 flows out from the water outlet 21 after being mixed.

[0035] The thermostatic valve stem 3 , the nut 4 , the regulating valve stem 5 , the thermosensitive element 6 , the piston 7 , the regulating spring 30 , the cold water inlet muffler 8 and the hot water inlet muffler 9 are all arranged in the valve body 1 .

[0036] The first end of the thermostatic valve stem 3 passes through the upper part of the valve body 1 upward, and the second end of the thermostatic valve stem 3 is connected to the regulating valve stem 5. Specifically: the second end of the thermostatic valve stem 3 is provided with an external thread structure on the outside, and the nut 4 is preferably a hexagonal nut 4, and the hexagonal nut 4 is connected to the external thread structure. A polygonal hole 13a is provided inside the valve body 1 corresponding to the nut 4, which is used to limit the rotation of the hexagonal nut 4. The second end of the thermostatic valve stem 3 is provided with a first accommodating cavity 31 on the inside.

[0037] The regulating valve stem 5 includes a first sleeve portion 51 and a second sleeve portion 52 which are interconnected, and the outer diameter of the second sleeve portion 52 is larger than the outer diameter of the first sleeve portion 51. The first sleeve portion 51 is arranged in the first accommodating chamber 31 and can move up and down along its axial direction. The second sleeve portion 52 is located outside the first accommodating chamber 31, so that the lower end surface of the nut 4 is adjacent to the second sleeve portion 52. When the thermostatic valve stem 3 rotates around its own axis, the nut 4 can move along its axial direction with the cooperation of the polygonal hole 13a, thereby driving the regulating valve stem 5 to move. In this embodiment, the cold water inlet muffler 8 is arranged on the outside of the second sleeve portion 52, and the nut 4 can also push the cold water inlet muffler 8 downward, thereby driving the regulating valve stem 5 to move.

[0038] The regulating valve stem 5 is connected to the first end of the thermosensitive element 6, preferably elastically. Specifically, a safety spring 10 is arranged in the first sleeve portion 51, and a top cap 20 is arranged in the second sleeve portion 52, and the upper part of the top cap 20 is connected to the safety spring 10. The first end of the thermosensitive element 6 extends into the second sleeve portion 52 and is connected to the lower part of the top cap 20, so that the thermosensitive element 6 can move elastically along the axial direction of the regulating valve stem 5. The second end of the thermosensitive element 6 extends toward the base 2 and passes through the water outlet 21.

[0039] The piston 7 is sleeved on the outer side of the middle part of the thermosensitive element 6, and the piston 7 can move up and down with the thermosensitive element 6. In order to enable the piston 7 to move upward, an adjustment spring 30 is provided in the base 2 in this embodiment. An abutment ring 61 is protrudingly provided in the middle part of the thermosensitive element 6, and the two ends of the adjustment spring 30 are elastically abutted between the abutment ring 61 and the base 2, respectively, so that the thermosensitive element 6 can elastically move along its axial direction.

[0040] The thermostatic valve stem 3 can rotate around its axis, and then drive the regulating valve stem 5, the thermistor 6 and the piston 7 to move axially along the valve body 1 through the nut 4, so that the piston 7 can move back and forth between the cold water inlet 11 and the hot water inlet 12 to adjust the respective water inlet amounts of the cold water inlet 11 and the hot water inlet 12, thereby realizing automatic regulation of cold and hot water.

[0041] When the water inlet pressure and temperature change, the elongation of the thermistor 6 will change. Under the action of the adjusting spring 30, the thermistor 6 drives the piston 7 to move up and down to change the cold water inlet and the hot water inlet, so that the outlet water temperature remains basically unchanged, realizing the constant temperature function.

[0042] When the cold water supply fails, the water temperature in the thermostatic valve core rises, the extension of the thermosensitive element 6 increases, and the thermosensitive element 6 drives the piston 7 to move downward until the piston 7 closes the hot water inlet 12 to ensure the safety of hot water use. When the thermosensitive element 6 extends to a certain value, the thermosensitive element 6 will drive the top cap 20 to move upward, and the safety spring 10 will be compressed to prevent the thermosensitive element 6 from extending too long, thereby increasing the service life of the thermosensitive element 6.

[0043] In order to achieve the muffler function, in this embodiment, a cold water inlet muffler 8 and a hot water inlet muffler 9 are respectively provided at the cold water inlet 11 and the hot water inlet 12 .

[0044] The cold water inlet muffler 8 is arranged on the inner side of the middle part of the valve body 1 and is arranged corresponding to the cold water inlet 11. The cold water inlet muffler 8 is connected to the outer side of the regulating valve stem 5 and can move with the regulating valve stem 5, or the cold water inlet muffler 8 is fixedly arranged on the inner wall of the valve body 1, and the former is preferred in this embodiment.

[0045] Combination Figure 2 , Figure 4 and Figure 5 The cold water inlet silencer 8 includes a cold fixing ring 81, a plurality of hooks 82 and a plurality of cold silencer columns 83. The plurality of cold silencer columns 83 are arranged on the outward side of the cold fixing ring 81 along the circumference of the cold water inlet silencer 8. The cold silencer columns 83 extend along the axial direction of the cold water inlet silencer 8, and there is a first preset gap between two adjacent cold silencer columns 83 to facilitate the passage of cold water. The plurality of hooks 82 are arranged on the inward side of the cold fixing ring 81. The number of hooks 82 is set to be more than two. In this embodiment, four hooks 82 are taken as an example, and the four hooks 82 are arranged evenly spaced. The regulating valve stem 5 is provided with an annular groove 53 on the outer peripheral wall of the second sleeve portion 52. The cold water inlet silencer 8 is sleeved on the outside of the second sleeve portion 52, and the four hooks 82 are all matched and connected with the groove 53.

[0046] Combination Figure 1 , Figure 3 , Figure 4 and Figure 6 The hot water inlet silencer 9 is arranged in the base 2 and corresponds to the hot water inlet 12, and the adjustment spring 30 is arranged on the inner side of the hot water inlet silencer 9. The hot water inlet silencer 9 includes a heat fixing ring 91 and a plurality of heat muffler columns 92. A through hole 911 connected to the water outlet 21 is opened in the middle of the heat fixing ring 91. The lower part of the thermosensitive element 6 extends outward through the adjustment spring 30, the through hole 911 and the water outlet 21. The plurality of heat muffler columns 92 are evenly arranged along the circumferential interval of the heat fixing ring 91, and a second preset gap is provided between two adjacent heat muffler columns 92 to facilitate the passage of hot water.

[0047] Multiple silencer columns can divide a large flow of incoming water into multiple small streams of water, so as to reduce the turbulence generated when the incoming water enters the large cavity, thereby reducing the liquid flow noise caused by the turbulence.

[0048] Combination Figure 1 and Figure 7 The piston 7 includes a cold ring portion 71, a connecting portion 72 and a hot ring portion 73 in sequence along its axial direction. The cold ring portion 71 partially blocks the cold water inlet 11, so that a cold water inlet gap for cold water to enter is formed between the top wall of the cold ring portion 71 and the upper wall of the cold water inlet 11. The hot ring portion 73 partially blocks the hot water inlet 12, so that a hot water inlet gap for hot water to enter is formed between the bottom wall of the hot ring portion 73 and the bottom wall of the hot water inlet 12. By adjusting the upper and lower positions of the piston 7, the sizes of the cold water inlet gap and the hot water inlet gap are adjusted to achieve hot and cold water inlet regulation.

[0049] The cold ring part 71 is provided with a cold water chamber 74 and a cold water trough 75 which are interconnected. The cold water chamber 74 is located above the cold water trough 75, and the diameter of the cold water chamber 74 gradually narrows toward the cold water trough 75. The cold water chamber 74 has the function of buffering and storing water, and the cold water trough 75 has the function of collecting water to increase the water inlet flow rate, thereby increasing the water outlet flow rate. A mixing water chamber 78 is formed on the inner side of the hot ring part 73; the connecting part 72 is provided with a mounting hole 76 and a plurality of cold water through holes 77, and the plurality of cold water through holes 77 are arranged on the periphery of the mounting hole 76, and the cold water through holes 77 are arranged in the bottom of the cold water trough 75. The cold water chamber 74 is connected with the mixing water chamber 78 through the cold water trough 75 and the plurality of cold water through holes 77. Cold water enters from the cold water inlet gap and is stored in the cold water chamber 74. After being collected by the cold water trough 75, it passes through the cold water through holes 77 and enters the mixing water chamber 78 to mix with hot water. An internal thread structure is provided on the hole wall of the mounting hole 76 , and an external thread portion connected to the internal thread structure is provided above the abutting ring 61 of the thermal element 6 .

[0050] In the axial direction, the second sleeve portion 52 and the connecting portion 72 are arranged correspondingly and have a preset distance L, which is variable. Generally, when the thermostatic valve stem 3 rotates clockwise, the outlet water gradually becomes colder. At this time, the thermostatic valve stem 3 can drive the regulating valve stem 5 to move downward. Under the elastic action of the safety spring 10, the top cap 20 applies a downward force to the thermistor 6 to move the thermistor 6 downward, thereby driving the piston 7 to move downward, so that the gap of the hot water inlet 12 is reduced and the gap of the cold water inlet 11 is increased. In this process, the preset distance L gradually decreases until the preset distance L decreases to zero. Thereafter, the second sleeve portion 52 abuts against the connecting portion 72, and the regulating valve stem 5 can directly push the piston 7 to move downward. At this time, the top cap 20 no longer applies downward pressure to the thermistor 6, which is conducive to reducing the pressure of the thermistor 6 and increasing the service life of the thermistor 6. It can also reduce the rotation angle required by the thermostatic valve stem 3 when discharging cold water, so that the user experience is better.

[0051] The second embodiment of the large flow rate silencer thermostatic valve core:

[0052] See also Figures 8 to 10 Based on the first embodiment of the large flow rate muffler thermostatic valve core, the thermostatic valve stem 3 of this embodiment can drive the regulating valve stem 5 to move axially through the kit 40. Specifically:

[0053] The kit 40 is arranged in the valve body 1, and the two ends of the kit 40 are respectively connected to the thermostatic valve stem 3 and the regulating valve stem 5. The inside of the kit 40 is provided with a first connecting hole 401, an abutment portion 402 and a second connecting hole 403 in sequence along its axial direction. The first connecting hole 401 is provided with an internal thread structure, and the thermostatic valve stem 3 is threadedly connected to the first connecting hole 401; the second connecting hole 403 matches the shape of the regulating valve stem 5, and the regulating valve stem 5 is arranged in the second connecting hole 403 to move up and down, and the end of the regulating valve stem 5 is adjacent to the abutment portion 402.

[0054] The upper outer side of the sleeve 40 is set to a polygonal structure, and the upper inner side of the valve body 1 is provided with a polygonal hole 13b matching the sleeve 40. The sleeve 40 is arranged in the polygonal hole 13b to limit the rotation of the sleeve 40.

[0055] When the thermostatic valve stem 3 rotates around its own axis, it can drive the sleeve 40 to move along its axial direction, thereby driving the regulating valve stem 5 to move.

[0056] In summary, the utility model, by providing a cold water inlet silencer, is conducive to dividing a large flow water column of cold water into small streams, so as to reduce the turbulence generated after the cold water enters the valve body, avoid the liquid flow noise generated by the turbulence, and play a silencing role.

[0057] Finally, it should be emphasized that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A large flow rate muffler thermostatic valve core, comprising a valve body, a base, a thermostatic valve stem, an adjusting valve stem, a thermal element, a piston and an adjusting spring, wherein the valve body is screwed to the upper part of the base, and is characterized in that: The thermostatic valve stem, the regulating valve stem, the thermistor and the piston are all arranged in the valve body, the thermostatic valve stem is connected to the regulating valve stem, the regulating valve stem is connected to one end of the thermistor, the piston is connected to the outer middle part of the thermistor, the regulating spring elastically abuts between the thermistor and the base, the valve body is provided with a cold water inlet and a hot water inlet along its axial arrangement, the base is provided with a water outlet, the thermostatic valve stem can rotate around its axis, and then drive the regulating valve stem, the thermistor and the piston to move along the axial direction of the valve body, so that the piston can move back and forth between the cold water inlet and the hot water inlet to adjust the water inlet amount of the cold water inlet and the hot water inlet; The large-flow silencer thermostatic valve core also includes a cold water inlet silencer, which is arranged inside the valve body and corresponds to the cold water inlet. A plurality of cold silencer columns are arranged on the cold water inlet silencer, and the plurality of cold silencer columns are arranged along the circumference of the cold water inlet silencer, and a first preset gap is provided between two adjacent cold silencer columns.

2. The large flow rate muffler thermostatic valve core according to claim 1, characterized in that: The cold water inlet muffler is connected to the outer side of the regulating valve stem and can move with the regulating valve stem, or the cold water inlet muffler is fixedly arranged on the inner wall of the valve body.

3. The large flow rate muffler thermostatic valve core according to claim 2 is characterized in that: When the cold water inlet muffler is connected to the regulating valve stem, the cold water inlet muffler comprises a cold fixing ring and a hook, the hook is arranged on the inner side of the cold fixing ring, and a plurality of cold muffler columns are arranged on the outer side of the cold fixing ring; A clamping groove is provided on the outer peripheral wall of the regulating valve stem, and the clamping hook is matched and connected with the clamping groove.

4. The large flow rate silencing thermostatic valve core according to claim 1 is characterized in that: The large-flow silencing thermostatic valve core also includes a hot water inlet muffler, which is arranged in the base and corresponds to the hot water inlet.

5. The large flow rate muffler thermostatic valve core according to claim 4, characterized in that: The hot water inlet silencer comprises a heat fixing ring and a plurality of heat silencer columns. The plurality of heat silencer columns are arranged along the circumference of the heat fixing ring, and a second preset gap is provided between two adjacent heat silencer columns.

6. The large flow rate muffler thermostatic valve core according to claim 1, characterized in that: The piston includes a cold ring part, a connecting part and a hot ring part in sequence along its axial direction. A cold water cavity and a cold water groove that are interconnected are formed on the inner side of the cold ring part. The diameter of the cold water cavity gradually narrows toward the cold water groove. A mixed water cavity is formed on the inner side of the hot ring part. The connecting part is provided with a mounting hole and a plurality of cold water through holes. The plurality of cold water through holes are arranged on the periphery of the mounting hole. The cold water through holes are arranged in the cold water groove. The cold water cavity is connected to the mixed water cavity through the cold water groove and the cold water through holes.

7. The large flow rate muffler thermostatic valve core according to claim 6, characterized in that: A safety spring and a top cap are arranged between the regulating valve stem and the thermal element; The regulating valve stem includes a first sleeve portion and a second sleeve portion which are interconnected, the safety spring is arranged in the first sleeve portion, the top cap is arranged in the second sleeve portion, and the two sides of the top cap are respectively connected to the safety spring and one end of the thermistor, so that the thermistor can elastically move along the axial direction of the regulating valve stem.

8. The large flow rate muffler thermostatic valve core according to claim 7, characterized in that: In the axial direction, the second sleeve portion and the connecting portion are arranged correspondingly and have a preset distance, and the preset distance is variable; When the thermostatic valve stem rotates clockwise and drives the regulating valve stem to move downward, the preset distance can be reduced to zero.

9. The large flow rate muffler thermostatic valve core according to any one of claims 1 to 8, characterized in that: The large-flow silencer thermostatic valve core also includes a nut, which is arranged in the valve body and screwed on the thermostatic valve stem. The end face of the nut is adjacent to the cold water inlet silencer or the regulating valve stem. When the thermostatic valve stem rotates around its own axis, it can drive the nut to move along its axial direction, thereby driving the regulating valve stem to move.

10. The large flow rate muffler thermostatic valve core according to any one of claims 1 to 8, characterized in that: The large-flow silencer thermostatic valve core also includes a kit, which is arranged in the valve body and is connected to the thermostatic valve stem and the regulating valve stem respectively; The interior of the kit is provided with a first connecting hole, an abutment portion and a second connecting hole in sequence along its axial direction. The thermostatic valve stem is threadedly connected to the first connecting hole. The regulating valve stem is arranged in the second connecting hole so as to move up and down, and the end of the regulating valve stem is adjacent to the abutment portion. When the thermostatic valve stem rotates around its own axis, it can drive the kit to move along its axial direction, thereby driving the regulating valve stem to move.

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