Automatic circulation temperature control device of drinking water equipment

Abstract

The invention belongs to the technical field of circulating temperature control, and discloses a drinking water equipment automatic circulating temperature control device which comprises a water storage tank, a water storage cavity is formed in the water storage tank, the lower end of the water storage tank fixedly communicates with a water inlet pipe, and the upper end of the water storage tank fixedly communicates with a water outlet pipe. A heat insulation device is movably connected into the water storage cavity in a sleeved mode, a water outlet flow guide assembly and a water inlet flow guide assembly are installed at the upper end and the lower end of an inner cavity of the water storage cavity correspondingly, and the water inlet pipe and the water outlet pipe communicate with the interior of the water storage cavity through the water inlet flow guide assembly and the water outlet flow guide assembly correspondingly. And a temperature sensor is arranged in the water outlet pipe. Due to the arrangement of the heat insulation device, the interior of the water storage cavity can be divided into two independent spaces, water inflow and water outflow in the heating cavity are independent, then the situation that heated hot water is mixed with newly injected cold water is avoided, and therefore it can be guaranteed that the hot water at the water outlet end is accurately controlled by the temperature control system.

Description

Technical Field

[0001] The invention belongs to the technical field of circulating temperature control, and in particular is an automatic circulating temperature control device for drinking water equipment. Background Art

[0002] Drinking water devices have become one of the essential appliances in living and working places, and electrically driven heaters are also a major appliance currently used; existing drinking water heating and cooling devices generally use electric heaters for direct heating, and passively trigger to stop heating when the heating temperature is reached.

[0003] The existing drinking water control device is provided with a water storage tank to heat the stored water for use. While drinking hot water, the equipment will automatically replenish the hot water tank, which causes the originally heated boiled water to mix with the newly added cold water, resulting in the drinking hot water being lower than the heating temperature. That is to say, the 100-degree boiled water taken will actually be affected by the newly added cold water, resulting in the temperature being lower than 100 degrees, which not only brings inconvenience to the user, but also poses certain safety hazards to the user's health. Therefore, it is necessary to develop an automatic circulation temperature control device for drinking water to solve the deficiencies in the prior art. Summary of the invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides an automatic circulation temperature control device for drinking water equipment, which has the advantage of precise temperature control.

[0005] Among them, the water storage chamber can be divided into two independent spaces by the heat insulation device, so that the water inlet and water outlet in the heating chamber are independent of each other, thereby avoiding the mixing of the heated hot water and the newly injected cold water, thereby ensuring that the hot water at the water outlet is accurately controlled by the temperature control system; and through the heat insulation device, while separating the heated hot water from the newly injected cold water, it can also effectively avoid the heated water from being heated repeatedly, thereby effectively reducing the generation of harmful substances by repeated heating.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic circulation temperature control device for drinking water equipment, comprising a water storage tank, a water storage cavity is provided inside the water storage tank, a water inlet pipe is fixedly connected to the lower end of the water storage tank, a water outlet pipe is fixedly connected to the upper end of the water storage tank, a heat insulation device is movably sleeved inside the water storage cavity, a water outlet guide component and a water inlet guide component are respectively installed at the upper and lower ends of the inner cavity of the water storage cavity, the water inlet pipe and the water outlet pipe are respectively connected to the interior of the water storage cavity through the water inlet guide component and the water outlet guide component, a pressure sensor is arranged inside the water inlet pipe, and a temperature sensor is arranged inside the water outlet pipe;

[0007] A pressure valve assembly is provided inside the thermal insulation device, the water outlet diameter in the water outlet pipe is larger than the water inlet diameter in the water inlet pipe, the thermal insulation device is in a closed state when water is flowing out of the water outlet pipe, and the thermal insulation device is pushed to move stably upward along the inside of the water storage cavity when water is flowing into the water inlet pipe.

[0008] Preferably, the thermal insulation device includes an insulation plate sealed and sleeved inside the water storage chamber, a coaxial first connecting hole is opened in the middle of the insulation plate, and the upper and lower ends of the first connecting hole pass through the insulation plate and are connected to the upper and lower ends of the inner cavity of the water storage chamber.

[0009] Preferably, a sealed cavity is provided inside the heat insulation board and is located in the middle of the first connecting hole, and the upper and lower ends of the sealed cavity are connected to the interior of the water storage cavity through the first connecting hole.

[0010] Preferably, the internal sealing sleeve of the sealing chamber is connected with a sealing piston plate, the cross-section of the sealing piston plate is a horizontal "L" shape, the top of the sealing piston plate is sealed to the upper end of the first connecting hole, and the side sealing sleeve of the sealing piston plate is connected to the interior of the sealing chamber.

[0011] Preferably, a compressed air chamber located outside the sealed chamber is provided inside the thermal insulation board, a connecting chamber located between the sealed chamber and the compressed air chamber is provided inside the thermal insulation board, and a third connecting hole located between the connecting chamber and the compressed air chamber is also provided inside the thermal insulation board, one end of the connecting chamber is connected to one side of the sealed chamber, and the other end of the connecting chamber is connected to the compressed air chamber through the third connecting hole.

[0012] Preferably, the interior of the communication cavity is slidably engaged with a limit block, the cross section of the top of the limit block is conical, and when one end of the limit block close to the third communication hole abuts against the inner wall of the communication cavity, the third communication hole is still interconnected with the interior of the communication cavity;

[0013] One end of the limit block away from the third communicating hole is fixedly connected with a connecting rod, and the connecting rod passes through the communicating cavity and extends to the inside of the sealing cavity and is fixedly connected to the side of the sealing piston plate.

[0014] Preferably, the water inlet guide assembly and the water outlet guide assembly have the same structure, and the internal structures of the water inlet guide assembly and the water outlet guide assembly are symmetrical with respect to the center of the water tank.

[0015] Preferably, the water inlet guide assembly and the water outlet guide assembly are both composed of a sealing plate, a flow limiting plate, a second connecting hole, a flow guide cover, a heating rod, a connecting groove and a partition plate. The sealing plate is fixedly sleeved on the inside of the water storage chamber, the flow limiting plate is opened in the middle of the sealing plate, the connecting groove is opened on the side of the flow limiting plate, the flow guide cover is fixedly connected between the sealing plate and the flow limiting plate, the heating rod is encapsulated inside the flow guide cover and between the sealing plate and the flow limiting plate, both ends of the heating rod pass through the sealing plate and extend to the outside of the water tank and are fixedly connected to a power pole, the partition plate is fixedly connected to one end of the flow guide cover close to the second connecting hole, and the other end of the flow guide cover is connected to the inside of the water storage chamber.

[0016] Preferably, the water inlet pipe and the water outlet pipe are interconnected with the water inlet guide assembly and the water outlet guide assembly through the second connecting hole on the sealing plate, and the water inlet guide assembly and the water outlet guide assembly are interconnected with the interior of the water storage chamber through their respective internal guide covers.

[0017] Preferably, the method comprises the following steps:

[0018] S1. Open equipment so that cold water enters from the water inlet pipe, passes through the water inlet pipe, and then enters the bottom of the insulation device inside the water storage chamber through the second connecting hole, the guide cover and the connecting groove in the water inlet guide assembly;

[0019] S2. The hot water at the top of the insulation device in the same water storage chamber sequentially enters the interior of the water outlet pipe through the connecting groove, the guide cover and the second connecting hole in the water outlet guide assembly, and finally flows out;

[0020] S3. As the hot water continues to flow out of the water outlet pipe, the newly injected cold water at the water inlet pipe continues to enter the water storage chamber and push the insulation device to slowly rise along the inside of the water storage chamber to ensure that the hot and cold water do not interfere with each other;

[0021] S4. When the cold and hot water flow along the deflector, they fully contact the heating rod, so that the cold water is quickly heated;

[0022] S5. When the water outlet pipe stops discharging water, water continues to flow into the water inlet pipe, increasing the water pressure in the water storage chamber, thereby pushing the sealing piston plate inside the sealing chamber, and then compressing the air inside the compressed air chamber in cooperation with the communicating chamber and the third communicating hole, so that the sealing piston plate is away from the first communicating hole, so that the upper and lower ends of the first communicating hole are connected to the sealing chamber;

[0023] S6. When the upper and lower ends of the sealed cavity are in breathing communication with the upper and lower ends of the first communication hole, the upper and lower ends of the middle portion of the heat insulating device are in communication with the upper and lower ends of the inner cavity of the water storage cavity, and then the heat insulating device is slowly lowered to the bottom of the inner cavity of the water storage cavity under the action of gravity, ensuring that the water in the water storage cavity is heated as a whole and can be separated from the cold water that enters later;

[0024] S7. When the water pressure in the water storage chamber is greater than the air pressure in the compressed air chamber, water injection is stopped with the cooperation of the pressure sensor in the water inlet pipe. When water starts to flow out of the water outlet pipe, the water pressure in the water storage chamber drops, causing the thermal insulation device to return to the separated state. At the same time, water replenishment begins with the cooperation of the pressure sensor in the water inlet pipe.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. Due to the provision of the heat insulation device, the present invention can divide the water storage chamber into two independent spaces, so that the water inlet and water outlet in the heating chamber are independent of each other, thereby avoiding the situation where the heated hot water is mixed with the newly injected cold water, thereby ensuring that the hot water at the water outlet end is accurately controlled by the temperature control system.

[0027] 2. Due to the provision of the heat insulation device, the present invention can not only separate the heated hot water from the newly injected cold water, but also effectively avoid the situation where the heated water is repeatedly heated, thereby effectively reducing the situation where harmful substances are generated by repeated heating.

[0028] 3. Due to the arrangement of the water inlet guide assembly and the water outlet guide assembly, the inlet and outlet water can be heated quickly, which can not only improve the heating efficiency and reduce energy consumption, but also effectively improve the efficiency of taking hot water. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the structure of the present invention;

[0030] Figure 2 It is a front view of the present invention;

[0031] Figure 3 It is a cross-sectional view of the front side of the present invention;

[0032] Figure 4 It is a schematic structural diagram of the heat insulation device of the present invention;

[0033] Figure 5 It is a schematic structural diagram of the bottom of the heat insulation device of the present invention;

[0034] Figure 6 is a cross-sectional view of the front side of the heat insulation device of the present invention;

[0035] Figure 7 A cross-sectional view of the top of the third connecting hole of the heat insulation device of the present invention;

[0036] Figure 8 is a cross-sectional view of the front side of the flow guide assembly of the present invention;

[0037] Fig. 9 It is a cross-sectional view of the top of the guide component of the present invention.

[0038] In the figure: 1. water storage tank; 2. water storage chamber; 3. water inlet pipe; 4. water outlet pipe; 5. heat insulation device; 51. heat insulation board; 52. first connecting hole; 53. sealing chamber; 54. connecting chamber; 55. compressed air chamber; 56. third connecting hole; 57. sealing piston plate; 58. connecting rod; 59. limit block; 6. water inlet guide assembly; 7. water outlet guide assembly; 8. power connection column; 9. sealing plate; 10. current limiting plate; 11. second connecting hole; 12. guide cover; 13. heating rod; 14. connecting groove; 15. partition plate. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0040] like Figures 1 to 9 As shown, the present invention provides an automatic circulation temperature control device for drinking water equipment, comprising a water storage tank 1, a water storage chamber 2 is provided inside the water storage tank 1, a water inlet pipe 3 is fixedly connected to the lower end of the water storage tank 1, a water outlet pipe 4 is fixedly connected to the upper end of the water storage tank 1, a heat insulation device 5 is movably sleeved inside the water storage chamber 2, a water outlet guide component 7 and a water inlet guide component 6 are respectively installed at the upper and lower ends of the inner cavity of the water storage chamber 2, the water inlet pipe 3 and the water outlet pipe 4 are respectively connected to the inside of the water storage chamber 2 through the water inlet guide component 6 and the water outlet guide component 7, a pressure sensor is arranged inside the water inlet pipe 3, and a temperature sensor is arranged inside the water outlet pipe 4;

[0041] A pressure valve assembly is provided inside the heat insulation device 5. The water outlet diameter in the water outlet pipe 4 is larger than the water inlet diameter in the water inlet pipe 3. When water is flowing out of the water outlet pipe 4, the heat insulation device 5 is in a closed state. When water is flowing into the water inlet pipe 3, the heat insulation device 5 is pushed to make it move upward stably along the inside of the water storage chamber 2. Due to the setting of the heat insulation device 5, the water storage chamber 2 can be divided into two independent spaces, so that the water inlet and water outlet in the heating chamber are independent of each other, thereby avoiding the situation where the heated hot water is mixed with the newly injected cold water, thereby ensuring that the hot water at the water outlet end is accurately controlled by the temperature control system; due to the setting of the heat insulation device 5, while separating the heated hot water from the newly injected cold water, it can also effectively avoid the situation where the heated water is repeatedly heated, thereby effectively reducing the situation where harmful substances are generated by repeated heating.

[0042] like Figures 3 to 7 As shown, the insulation device 5 includes an insulation plate 51 sealed and sleeved inside the water storage chamber 2, and a coaxial first connecting hole 52 is opened in the middle of the insulation plate 51. The upper and lower ends of the first connecting hole 52 pass through the insulation plate 51 and are connected to the upper and lower ends of the inner cavity of the water storage chamber 2.

[0043] like Figures 3 to 7 As shown, a sealing cavity 53 is provided inside the heat insulation board 51, which is located in the middle of the first connecting hole 52. The upper and lower ends of the sealing cavity 53 are connected with the interior of the water storage cavity 2 through the first connecting hole 52. Due to the setting of the sealing cavity 53, it can be ensured that the heat insulation board 51 can be connected with the upper and lower ends of the inner cavity of the water storage cavity 2 through the first connecting hole 52, and it can also be ensured that the sealing piston plate 57 can slide along the inside of the sealing cavity 53 under the action of the water pressure in the water storage cavity 2, so that the sealing cavity 53 and the first connecting hole 52 are connected with each other.

[0044] like Figures 3 to 7 As shown, the internal sealing sleeve of the sealing chamber 53 is connected with a sealing piston plate 57, the cross-section of the sealing piston plate 57 is a horizontal "L" shape, the top of the sealing piston plate 57 is sealed and fitted to the upper end of the first connecting hole 52, and the side of the sealing piston plate 57 is sealed and sleeved inside the sealing chamber 53; due to the setting of the sealing piston plate 57, the sealing chamber 53 and the first connecting hole 52 can be blocked, and the sealing piston plate 57 can be moved after the water pressure in the sealing chamber 53 increases, so as to ensure that the sealing chamber 53 and the first connecting hole 52 are connected to each other.

[0045] like Figures 3 to 7 As shown, a compressed air chamber 55 located outside the sealed chamber 53 is provided inside the heat insulation board 51, a connecting chamber 54 located between the sealed chamber 53 and the compressed air chamber 55 is provided inside the heat insulation board 51, and a third connecting hole 56 located between the connecting chamber 54 and the compressed air chamber 55 is also provided inside the heat insulation board 51, one end of the connecting chamber 54 is connected to one side of the sealed chamber 53, and the other end of the connecting chamber 54 is connected to the compressed air chamber 55 through the third connecting hole 56; due to the provision of the connecting chamber 54 and the third connecting hole 56, the sealed chamber 53 can be connected to the compressed air chamber 55, ensuring that the control inside the compressed air chamber 55 can be compressed after the water pressure in the sealed chamber 53 increases, so as to ensure that the sealing piston plate 57 can slide along the inside of the sealed chamber 53 in a sealed state.

[0046] like Figures 3 to 7 As shown, the inner part of the communication cavity 54 is slidably engaged with a limit block 59, the cross section of the top of the limit block 59 is conical, and when one end of the limit block 59 close to the third communication hole 56 abuts against the inner wall of the communication cavity 54, the third communication hole 56 is still connected to the inner part of the communication cavity 54;

[0047] The end of the limit block 59 away from the third connecting hole 56 is fixedly connected to a connecting rod 58, which passes through the connecting chamber 54 and extends to the interior of the sealing chamber 53 and is fixedly connected to the side of the sealing piston plate 57; due to the arrangement of the connecting rod 58 and the limit block 59, the stability of the sealing piston plate 57 can be improved while ensuring that the two ends of the third connecting hole 56 are respectively connected to the connecting chamber 54 and the compressed air chamber 55.

[0048] like Figure 8 and Fig. 9 As shown, the structures of the water inlet guide component 6 and the water outlet guide component 7 are the same, and the internal structures of the water inlet guide component 6 and the water outlet guide component 7 are symmetrical with each other about the center of the water storage tank 1; due to the arrangement of the water inlet guide component 6 and the water outlet guide component 7, the inlet and outlet water can be heated quickly, which can not only improve the heating efficiency and reduce energy consumption, but also effectively improve the efficiency of hot water extraction.

[0049] like Figure 8 and Fig. 9 As shown, the water inlet guide assembly 6 and the water outlet guide assembly 7 are both composed of a sealing plate 9, a flow limiting plate 10, a second connecting hole 11, a flow guide cover 12, a heating rod 13, a connecting groove 14 and a partition plate 15. The sealing plate 9 is fixedly sleeved on the inside of the water storage chamber 2, the flow limiting plate 10 is opened in the middle of the sealing plate 9, the connecting groove 14 is opened on the side of the flow limiting plate 10, the flow guide cover 12 is fixedly connected between the sealing plate 9 and the flow limiting plate 10, the heating rod 13 is encapsulated inside the flow guide cover 12 and between the sealing plate 9 and the flow limiting plate 10, both ends of the heating rod 13 pass through the sealing plate 9 and extend to the outside of the water storage tank 1 and are fixedly connected to the power connection column 8, the partition plate 15 is fixedly connected to one end of the flow guide cover 12 close to the second connecting hole 11, and the other end of the flow guide cover 12 is connected to the inside of the water storage chamber 2.

[0050] like Figure 8 and Fig. 9 As shown, the water inlet pipe 3 and the water outlet pipe 4 are interconnected with the water inlet guide component 6 and the water outlet guide component 7 through the second connecting hole 11 on the sealing plate 9, and the water inlet guide component 6 and the water outlet guide component 7 are interconnected with the interior of the water storage chamber 2 through the guide cover 12 inside each of them; due to the setting of the second connecting hole 11 and the connecting groove 14, it is ensured that the water in the water inlet guide component 6 and the water outlet guide component 7 can flow along the inside of the guide cover 12, thereby ensuring that the inlet and outlet water can fully contact the heating rod 13, thereby effectively improving the heating efficiency of the heating rod 13 and reducing energy consumption.

[0051] like Figures 1 to 9 As shown, the following steps are included:

[0052] S1. The device is opened so that cold water enters from the water inlet pipe 3, passes through the water inlet pipe 3, and then enters the water storage chamber 2 at the bottom of the internal insulation device 5 through the second connecting hole 11, the guide cover 12 and the connecting groove 14 in the water inlet guide assembly 6;

[0053] S2. The hot water at the top of the insulation device 5 in the same water storage chamber 2 sequentially passes through the connecting groove 14, the guide cover 12 and the second connecting hole 11 in the water outlet guide assembly 7 to enter the interior of the water outlet pipe 4 and finally flows out;

[0054] S3. As hot water continues to flow out of the water outlet pipe 4, the newly injected cold water at the water inlet pipe 3 continuously enters the interior of the water storage chamber 2 and pushes the insulation device 5 to slowly rise along the interior of the water storage chamber 2 to ensure that the hot and cold water do not interfere with each other;

[0055] S4. When the hot and cold water flows along the guide cover 12, it fully contacts the heating rod 13, so that the cold water is quickly heated;

[0056] S5. When the water outlet pipe 4 stops discharging water, the water in the water inlet pipe 3 continues to flow in, so that the water pressure in the water storage chamber 2 increases, thereby pushing the sealing piston plate 57 inside the sealing chamber 53, and then compressing the air inside the compression air chamber 55 under the cooperation of the connecting chamber 54 and the third connecting hole 56, so that the sealing piston plate 57 is away from the first connecting hole 52, so that the upper and lower ends of the first connecting hole 52 are connected to the sealing chamber 53;

[0057] S6. When the upper and lower ends of the sealed cavity 53 are in breathing communication with the upper and lower ends of the first communication hole 52, the upper and lower ends of the middle portion of the heat insulating device 5 are in communication with the upper and lower ends of the inner cavity of the water storage cavity 2, and then the heat insulating device 5 slowly descends to the bottom of the inner cavity of the water storage cavity 2 under the action of gravity, ensuring that the water in the water storage cavity 2 is heated as a whole and can be separated from the cold water that enters later;

[0058] S7. When the water pressure in the water storage chamber 2 is greater than the air pressure in the compressed air chamber 55, water injection is stopped with the cooperation of the pressure sensor in the water inlet pipe 3. When the water outlet pipe 4 starts to discharge water, the water pressure in the water storage chamber 2 drops, causing the thermal insulation device 5 to resume the separation state. At the same time, water replenishment begins with the cooperation of the pressure sensor in the water inlet pipe 3.

[0059] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0060] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic circulation temperature control device for drinking water equipment, comprising a water storage tank (1), characterized in that: The water storage tank (1) has a water storage chamber (2) formed therein, the lower end of the water storage tank (1) is fixedly connected to a water inlet pipe (3), the upper end of the water storage tank (1) is fixedly connected to a water outlet pipe (4), the interior of the water storage chamber (2) is movably sleeved with a heat insulation device (5), the upper and lower ends of the inner cavity of the water storage chamber (2) are respectively provided with a water outlet guide component (7) and a water inlet guide component (6), the water inlet pipe (3) and the water outlet pipe (4) are respectively connected to the interior of the water storage chamber (2) through the water inlet guide component (6) and the water outlet guide component (7), the interior of the water inlet pipe (3) is provided with a pressure sensor, and the interior of the water outlet pipe (4) is provided with a temperature sensor; A pressure valve assembly is provided inside the heat insulation device (5); the water outlet diameter in the water outlet pipe (4) is larger than the water inlet diameter in the water inlet pipe (3); when water is discharged from the water outlet pipe (4), the heat insulation device (5) is in a closed state; when water is in the water inlet pipe (3), the heat insulation device (5) is pushed to stably move upward along the inside of the water storage chamber (2).

2. The automatic circulation temperature control device for drinking water equipment according to claim 1, characterized in that: The heat insulation device (5) comprises a heat insulation plate (51) which is sealed and sleeved inside the water storage chamber (2); a coaxial first communication hole (52) is provided in the middle of the heat insulation plate (51); the upper and lower ends of the first communication hole (52) pass through the heat insulation plate (51) and are mutually connected with the upper and lower ends of the inner cavity of the water storage chamber (2).

3. The automatic circulation temperature control device for drinking water equipment according to claim 2, characterized in that: A sealed cavity (53) located in the middle of the first connecting hole (52) is provided inside the heat insulation plate (51), and the upper and lower ends of the sealed cavity (53) are connected to the interior of the water storage cavity (2) through the first connecting hole (52).

4. The automatic circulation temperature control device for drinking water equipment according to claim 3, characterized in that: The sealing chamber (53) is internally sealed with a sealing piston plate (57), the cross section of which is a horizontal "L" shape. The top of the sealing piston plate (57) is sealed against the upper end of the first connecting hole (52), and the side of the sealing piston plate (57) is sealingly sleeved inside the sealing chamber (53).

5. The automatic circulation temperature control device for drinking water equipment according to claim 4, characterized in that: The heat insulation board (51) has a compressed air chamber (55) located outside the sealed chamber (53) inside, and a connecting chamber (54) located between the sealed chamber (53) and the compressed air chamber (55) inside. The heat insulation board (51) also has a third connecting hole (56) located between the connecting chamber (54) and the compressed air chamber (55) inside. One end of the connecting chamber (54) is connected to one side of the sealed chamber (53), and the other end of the connecting chamber (54) is connected to the compressed air chamber (55) through the third connecting hole (56).

6. The automatic circulation temperature control device for drinking water equipment according to claim 5, characterized in that: The connecting cavity (54) is internally slidably engaged with a limit block (59), the top of which has a conical cross-section. When one end of the limit block (59) close to the third connecting hole (56) abuts against the inner wall of the connecting cavity (54), the third connecting hole (56) is still interconnected with the interior of the connecting cavity (54).

7. The automatic circulation temperature control device for drinking water equipment according to claim 6, characterized in that: One end of the limit block (59) away from the third connecting hole (56) is fixedly connected to a connecting rod (58), and the connecting rod (58) passes through the connecting cavity (54) and extends to the inside of the sealing cavity (53) and is fixedly connected to the side of the sealing piston plate (57).

8. The automatic circulation temperature control device for drinking water equipment according to claim 1, characterized in that: The water inlet guide assembly (6) and the water outlet guide assembly (7) have the same structure, and the internal structures of the water inlet guide assembly (6) and the water outlet guide assembly (7) are symmetrical with respect to the center of the water storage tank (1).

9. The automatic circulation temperature control device for drinking water equipment according to claim 1, characterized in that: The water inlet guide assembly (6) and the water outlet guide assembly (7) are both composed of a sealing plate (9), a flow limiting plate (10), a second connecting hole (11), a flow guide cover (12), a heating rod (13), a connecting groove (14) and a partition plate (15); the sealing plate (9) is fixedly sleeved inside the water storage chamber (2); the flow limiting plate (10) is provided in the middle of the sealing plate (9); the connecting groove (14) is provided on the side of the flow limiting plate (10); the flow guide cover (12) is fixedly connected to the The heating rod (13) is encapsulated inside the flow guide cover (12) and between the sealing plate (9) and the flow limiter plate (10); both ends of the heating rod (13) penetrate the sealing plate (9) and extend to the outside of the water storage tank (1) and are fixedly connected to the power connection pole (8); the partition plate (15) is fixedly connected to one end of the flow guide cover (12) close to the second connecting hole (11); and the other end of the flow guide cover (12) is connected to the inside of the water storage chamber (2).

10. The automatic circulation temperature control device for drinking water equipment according to claim 9, characterized in that: The water inlet pipe (3) and the water outlet pipe (4) are both connected to the water inlet guide assembly (6) and the water outlet guide assembly (7) through the second connecting hole (11) on the sealing plate (9), and the water inlet guide assembly (6) and the water outlet guide assembly (7) are both connected to the interior of the water storage chamber (2) through the guide covers (12) inside each of them.

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