Constant-temperature anti-scald faucet

Abstract

The constant-temperature anti-scald faucet comprises a water outlet valve body, a rotating handle, a hot water pipe shell, a cold water pipe shell and a connecting nut, the rotating handle is installed at the upper end of the water outlet valve body, one side of the water outlet valve body is connected with the hot water pipe shell, and the other side of the water outlet valve body is provided with the cold water pipe shell; the ends, facing the water outlet valve body, of the hot water pipe shell and the cold water pipe shell and the water outlet valve body are fixedly installed through connecting nuts, an extrusion plate is fixedly arranged on the side surface of the end, facing the communicating plate, of the rotating handle, and a positioning block is fixedly arranged on the side surface, facing the communicating plate, of the rotating handle. According to the constant-temperature anti-scald faucet, the surface of the hot water pipe shell is cooled in the mode that cold water is introduced through the cooling pipe arranged in the hot water pipe shell, so that people cannot be scalded by the temperature of the surface of the hot water pipe shell, and the cold water absorbing heat in the cooling pipe can be synchronously injected along with injection of the hot water; therefore, normal cold and hot adjustment of the faucet is not affected.

Description

Technical Field

[0001] The invention relates to the technical field of thermostatic faucets, in particular to a constant-temperature anti-scalding faucet. Background Art

[0002] Modern people have higher and higher requirements for the quality of life, and accordingly, the standards for faucets are also getting higher and higher. Faucets are also constantly evolving to meet the bathing requirements of modern people. From the initial hot and cold double-pipe manual temperature-adjusting faucets, it has developed into constant temperature faucets that can automatically output constant temperature water without manual adjustment. From a professional point of view, it is to maintain a constant temperature under a certain environment, and the constant temperature faucet allows you to bathe in a constant water temperature for a long time and take a comfortable bath. The constant temperature faucet can automatically balance the water pressure of cold water and hot water in a very short time through the constant temperature adjustment valve core of the faucet to maintain the stability of the water temperature. There is no need for manual adjustment at all. However, due to personal constitution and seasonal changes, Due to the influence of , the constant temperature function of the thermostatic faucet has certain limitations, so it still needs to be adjusted when used in certain scenarios. When used by the elderly and children, due to the lack of hand flexibility of the elderly and the lack of life experience of children, it is often difficult to adjust the faucet to the desired opening. Each time the faucet is turned on for use, it needs to be adjusted repeatedly, which is very inconvenient to use. When in use, since the hot water pipe is exposed on the outside of the wall, when bathing and adjusting the faucet, once the outer surface of the hot water pipe is accidentally touched, the temperature of the outer surface of the hot water pipe due to the internal hot water transfer will cause burns to the user's skin, posing certain safety hazards.

[0003] In view of the above problems, it is urgent to carry out innovative design based on the original faucet. Summary of the invention

[0004] The object of the present invention is to provide a constant temperature anti-scalding faucet to solve the problems of inconvenient faucet adjustment and scalding caused by accidentally touching the hot water pipe proposed in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a constant temperature and scalding-proof faucet, comprising a water outlet valve body, a turning handle, a hot water pipe shell, a cold water pipe shell and a connecting nut, the upper end of the water outlet valve body is equipped with a turning handle, one side of the water outlet valve body is connected to the hot water pipe shell, and the other side of the water outlet valve body is equipped with a cold water pipe shell, the hot water pipe shell and the cold water pipe shell are fixedly installed with the water outlet valve body at one end thereof through a connecting nut, a hot water pipe is provided inside the hot water pipe shell, a connecting groove is provided inside the end of the hot water pipe shell away from the water outlet valve body, and a cooling pipe is provided inside the outer surface of the hot water pipe shell, a converging cavity is provided at the end of the hot water pipe shell connected to the water outlet valve body, a connecting plate is fixedly installed at the end of the hot water pipe shell away from the water outlet valve body, and the connecting plate and one end of the cold water pipe shell are respectively connected to the water outlet valve body. The water supply pipes are connected, and a sealing plug is fixedly provided on the outer surface of one side of the connecting plate facing the inside of the hot water pipe shell, a cold water pipe is opened inside the cold water pipe shell, a pressure valve is installed inside the end of the cold water pipe facing the water outlet valve body, a water outlet joint is installed on the side surface of one end of the cold water pipe shell away from the water outlet valve body, and a water inlet joint is installed on the side surface of one end of the hot water pipe shell away from the water outlet valve body, a connecting plate is provided between the water outlet joint and the water inlet joint, a connecting pipe is opened inside the connecting plate, a sealing plate is fixedly provided inside the upper end of the connecting pipe, the upper end side surface of the connecting plate is penetrated by a sealing block, one end of the sealing block is fixedly connected to a sliding rod, an extrusion plate is fixedly provided on the side surface of one end of the turning handle facing the connecting plate, and a positioning block is fixedly provided on the side surface of the turning handle facing the connecting plate.

[0006] Preferably, the hot water pipe shell and the cold water pipe shell are fixedly installed with the water outlet valve body through connecting nuts, and the hot water pipe shell is threadedly connected to the connecting plate.

[0007] By adopting the above technical solution, the hot water pipe shell and the cold water pipe shell can respectively inject hot water and cold water into the water outlet valve body.

[0008] Preferably, the connecting groove is annular in design, and one end of the connecting groove is penetrated by a cooling pipe, and the other end of the cooling pipe penetrates the outer surface of the converging cavity, and the converging cavity is connected to the hot water pipe.

[0009] By adopting the above technical solution, the cold water injected into the connecting groove can absorb the heat of the outer surface of the hot water tube shell through the cooling tube and then be injected into the converging cavity to mix with the hot water.

[0010] Preferably, the sealing plug is a tube made of silicone material, and the sealing plug and the connecting groove are in a tight-fitting sliding connection.

[0011] By adopting the above technical solution, the sealing plug can seal one end of the hot water pipe shell to facilitate the drilling operation of the cooling pipe during processing.

[0012] Preferably, the two ends of the connecting pipe are respectively snap-connected with the water outlet joint and the water inlet joint, and the side surface of the connecting pipe is penetrated by the sealing block, one end of the water outlet joint penetrates the outer surface of the cold water pipe, one end of the water inlet joint penetrates the side surface of the connecting groove, one end of the sealing block is snap-connected with the sealing plate, and the outer surfaces of the sealing block and the sealing plate are in contact with the inner surface of the connecting pipe.

[0013] By adopting the above technical solution, the sealing block can seal the connecting pipe by engaging with the sealing plate, so as to block the process of injecting cold water from the cold water pipe shell into the hot water pipe shell.

[0014] Preferably, one end of the sliding rod passes through the outer surface of the connecting plate, and the end of the sliding rod located outside the connecting plate is designed as a right-angled trapezoid, and the inclined surface of one end of the right-angled trapezoid of the sliding rod is designed to face downward, a spring is connected between the sealing block and the connecting plate, the outer surface of one end of the right-angled trapezoid of the sliding rod is in contact with the outer surface of the extrusion plate, and the extrusion plate is designed to be arc-shaped.

[0015] By adopting the above technical solution, the extrusion plate can squeeze the inclined surface of the sliding rod when flipping upward, so that the sliding rod drives the sealing block to slide.

[0016] Preferably, a magnet sticking rod is adsorbed on the side surface of the connecting plate, a track rod is fixedly provided on the side surface of the magnet sticking rod, and one end of the track rod is fixedly connected to the track plate, a clearance groove is opened on the side surface of the track plate, and a rotating limit rotating plate is installed on the upper surface of the track plate, a clamping rod is fixedly provided on the outer surface of the track plate, a sliding clamping plate is installed inside the magnet sticking rod, and a rotating tightening bolt is connected to the upper surface of the clamping plate.

[0017] By adopting the above technical solution, the magnet sticking rod can keep the track plate in contact with the outer surface of the water outlet valve body through stable magnetic adsorption with the connecting plate.

[0018] Preferably, the track rod passes through the outer surface of the connecting plate, and the track rod is slidingly connected to the connecting plate, the magnet rod is threadedly connected to the tightening bolt, and the tightening bolt is rotationally connected to the clamping plate, and the lower surface of the clamping plate is fitted with the upper surface of the clamping rod.

[0019] By adopting the above technical solution, the tightening bolt can tighten the clamping rod through the clamping plate to ensure that the clamping rod will not drive the track plate to rotate after fine-tuning, causing the position of the clearance groove relative to the positioning block to change and affect the water temperature.

[0020] Preferably, the track plate is designed to be arc-shaped, and the side surface of the track plate fits with the side surface of the turn handle, and the track plate and the turning axis of the turn handle are designed concentrically, the give way groove and the positioning block are connected by a clearance fit, and the give way grooves are evenly distributed on the outer surface of the track plate, and the give way grooves pass through the upper and lower surfaces of the track plate, and the track plate and the track rod are slidably connected.

[0021] By adopting the above technical solution, the track plate can drive the clearance groove to move to a suitable angle by rotating, so that the positioning block will not be blocked only at a predetermined angle when flipping downward, ensuring the rotation angle of the handle to control the actual water outlet temperature.

[0022] Preferably, the lower surface of the limit rotating plate is in contact with the upper surface of the track plate, one end of the limit rotating plate is designed as a section, and the other end of the limit rotating plate is designed as an arc, and the upper surface of the limit rotating plate is lower than the lower surface of the positioning block.

[0023] By adopting the above technical solution, the positioning block will not contact the limit rotating plate when the handlebar rotates horizontally, causing the handlebar to be unable to rotate.

[0024] Compared with the prior art, the present invention has the following beneficial effects: the constant temperature anti-scalding faucet:

[0025] 1. The surface of the hot water pipe shell is cooled by introducing cold water through the cooling pipe opened inside the hot water pipe shell, so that the temperature of the surface of the hot water pipe shell will not cause scalding to personnel. The cold water after absorbing heat inside the cooling pipe will be injected synchronously with the injection of hot water, so as not to affect the normal hot and cold regulation of the faucet;

[0026] 2. The sliding rod is squeezed by the squeezing plate as the handle rotates, so that the sliding rod can drive the sealing block to slide and engage with the sealing plate to seal the connecting pipe, so as to achieve the purpose of no longer cooling the hot water pipe shell when the faucet is closed, thereby preventing water waste and backflow;

[0027] 3. The positioning block is limited by the groove on the surface of the track plate, so that when the rotation range of the handle needs to be fixed to achieve the purpose of controlling the water temperature, it is only necessary to adjust the limit turn plate at the corresponding position so that the handle can only be rotated at a predetermined angle, ensuring that the faucet can be immediately adjusted to a suitable angle when used by the elderly and children, eliminating the process of repeated adjustments. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall top view structure of the present invention;

[0029] Figure 2 It is a schematic diagram of the overall top-sectional structure of the present invention;

[0030] Figure 3It is a schematic diagram of a top cross-sectional structure of the connection between the connecting plate and the connecting pipe of the present invention;

[0031] Figure 4 It is a schematic diagram of the overall side sectional structure of the present invention;

[0032] Figure 5 It is a schematic diagram of the overall rear cross-sectional structure of the present invention;

[0033] Figure 6 For the present invention Figure 2 The enlarged structural diagram at A in the middle;

[0034] Figure 7 For the present invention Figure 4 Enlarged structural diagram at B in the middle.

[0035] In the figure: 1. water outlet valve body; 2. turning handle; 3. hot water pipe shell; 4. cold water pipe shell; 5. connecting nut; 6. hot water pipe; 7. connecting groove; 8. cooling pipe; 9. converging chamber; 10. connecting plate; 11. sealing plug; 12. cold water pipe; 13. pressure valve; 14. water outlet joint; 15. water inlet joint; 16. connecting plate; 17. connecting pipe; 18. sealing plate; 19. sealing block; 20. sliding rod; 21. extrusion plate; 22. magnet sticking rod; 23. track rod; 24. track plate; 25. giving way groove; 26. limit rotating plate; 27. clamping rod; 28. clamping plate; 29. ​​tightening bolts; 30. positioning block. DETAILED DESCRIPTION

[0036] 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.

[0037] See also Figure 1-7The present invention provides a technical solution: a constant temperature and scalding-proof faucet, comprising a water outlet valve body 1, a turning handle 2, a hot water pipe shell 3, a cold water pipe shell 4, a connecting nut 5, a hot water pipe 6, a connecting groove 7, a cooling pipe 8, a converging cavity 9, a connecting plate 10, a sealing plug 11, a cold water pipe 12, a pressure valve 13, a water outlet joint 14, a water inlet joint 15, a connecting plate 16, a connecting pipe 17, a sealing plate 18, a sealing block 19, a sliding rod 20, an extrusion plate 21, a magnet sticking rod 22, a track rod 23, a track plate 24, a giving groove 25, a limit rotating plate 26, a clamping rod 27, a clamping plate 28, a tightening bolt 29 and a positioning block 30, wherein the upper end of the water outlet valve body 1 is provided with a turning handle 2, one side of the water outlet valve body 1 is connected with the hot water pipe shell 3, and the other side of the water outlet valve body 1 A cold water pipe shell 4 is installed on the side, the hot water pipe shell 3 and the end of the cold water pipe shell 4 facing the water outlet valve body 1 are fixedly installed with the water outlet valve body 1 through a connecting nut 5, a hot water pipe 6 is provided inside the hot water pipe shell 3, and a connecting groove 7 is provided inside the end of the hot water pipe shell 3 away from the water outlet valve body 1, and a cooling pipe 8 is provided inside the outer surface of the hot water pipe shell 3, and a converging cavity 9 is provided at the end of the hot water pipe shell 3 connected to the water outlet valve body 1, a connecting plate 10 is fixedly installed at the end of the hot water pipe shell 3 away from the water outlet valve body 1, and the connecting plate 10 and one end of the cold water pipe shell 4 are respectively connected to the water supply pipe, and a sealing plug 11 is fixedly provided on the outer surface of the side of the connecting plate 10 facing the inside of the hot water pipe shell 3, and a cold water pipe 12 is provided inside the cold water pipe shell 4, and the cold water pipe 12 faces A pressure valve 13 is installed inside one end of the water outlet valve body 1, a water outlet joint 14 is installed on the side surface of the end of the cold water pipe shell 4 away from the water outlet valve body 1, and a water inlet joint 15 is installed on the side surface of the end of the hot water pipe shell 3 away from the water outlet valve body 1. A connecting plate 16 is arranged between the water outlet joint 14 and the water inlet joint 15, and a connecting pipe 17 is opened inside the connecting plate 16. The hot water pipe shell 3 and the cold water pipe shell 4 are fixedly installed with the water outlet valve body 1 through a connecting nut 5, and the hot water pipe shell 3 is threadedly connected to the connecting plate 10, the connecting groove 7 is annular in design, and one end of the connecting groove 7 is penetrated by the cooling pipe 8, and the other end of the cooling pipe 8 penetrates the outer surface of the converging cavity 9, and the converging cavity 9 is connected with the hot water pipe 6, and the sealing plug 11 is a cylinder made of silicone material, and the sealing plug 11 and The connecting groove 7 is a tight-fitting sliding connection. The two ends of the connecting pipe 17 are respectively engaged with the water outlet joint 14 and the water inlet joint 15, and the side surface of the connecting pipe 17 is penetrated by the sealing block 19. One end of the water outlet joint 14 penetrates the outer surface of the cold water pipe 12, and one end of the water inlet joint 15 penetrates the side surface of the connecting groove 7. When in use, the connecting plate 10 introduces hot water into the hot water pipe 6 inside the hot water pipe shell 3 through the end threadedly connected to the hot water pipe shell 3, and the cold water pipe shell 4 introduces cold water into the cold water pipe 12. At this time, due to the presence of the pressure valve 13, a part of the cold water is injected into the connecting pipe 17 inside the connecting plate 16 through the water outlet joint 14 under pressure, and the connecting pipe 17 injects the cold water into the connecting groove 7 at one end closed by the sealing plug 11 through the water inlet joint 15.The connecting groove 7 injects cold water into the cooling pipe 8 through one end penetrated by the cooling pipe 8. The cold water in the cooling pipe 8 absorbs the heat on the surface of the hot water pipe shell 3 and then injects into the converging cavity 9 to mix with the hot water and injects into the water outlet valve body 1 through one end of the hot water pipe shell 3 connected to the connecting nut 5. The water in the cold water pipe 12 on the other side opens the pressure valve 13 and injects into the water outlet valve body 1, completing the mixed water outlet of cold and hot water and cooling the hot water pipe shell 3 to prevent scalding.

[0038] A sealing plate 18 is fixedly arranged inside the upper end of the connecting tube 17, and the upper end side surface of the connecting plate 16 is penetrated by a sealing block 19, one end of the sealing block 19 is fixedly connected to a sliding rod 20, and an extrusion plate 21 is fixedly arranged on the side surface of the end of the turning handle 2 facing the connecting plate 16, one end of the sealing block 19 is engaged with the sealing plate 18, and the outer surfaces of the sealing block 19 and the sealing plate 18 are in contact with the inner surface of the connecting tube 17, one end of the sliding rod 20 penetrates the outer surface of the connecting plate 16, and the end of the sliding rod 20 located outside the connecting plate 16 is of a right-angled trapezoidal design, and the inclined surface of the right-angled trapezoidal end of the sliding rod 20 is downwardly arranged. A spring is connected between the sealing block 19 and the connecting plate 16, the outer surface of one end of the right-angled trapezoid of the sliding rod 20 fits with the outer surface of the extrusion plate 21, and the extrusion plate 21 is designed to be arc-shaped. When the turning handle 2 is pressed down to drive the extrusion plate 21 to flip upward, the outer surface of one arc-shaped end of the extrusion plate 21 squeezes the inclined surface of the sliding rod 20, and the sliding rod 20 slides toward the inside of the connecting plate 16 to drive the sealing block 19 to engage with the sealing plate 18 and stretch the spring. At this time, the middle section of the connecting pipe 17 is closed by the sealing plate 18 and the sealing block 19 that are engaged with each other, so as to prevent the cold water inside the cold water pipe shell 4 from mixing with the hot water in the hot water pipe shell 3 when the faucet is not in use.

[0039] A positioning block 30 is fixedly provided on the side surface of the turning handle 2 facing the connecting plate 16, a magnet sticking rod 22 is adsorbed on the side surface of the connecting plate 16, a track rod 23 is fixedly provided on the side surface of the magnet sticking rod 22, and one end of the track rod 23 is fixedly connected to the track plate 24, a clearance groove 25 is opened on the side surface of the track plate 24, and a rotating limit rotating plate 26 is installed on the upper surface of the track plate 24, a clamping rod 27 is fixedly provided on the outer surface of the track plate 24, a sliding clamping plate 28 is installed inside the magnet sticking rod 22, and a rotating tightening bolt 29 is connected to the upper surface of the clamping plate 28, the track rod 23 passes through the outer surface of the connecting plate 16, and the track rod 23 is slidably connected to the connecting plate 16, the magnet sticking rod 22 is threadedly connected to the tightening bolt 29, and the tightening bolt 29 is rotatably connected to the clamping plate 28, and the lower surface of the clamping plate 28 fits with the upper surface of the clamping rod 27, the track plate 24 is designed in an arc shape, and the side surface of the track plate 24 fits with the side surface of the turning handle 2, and the track plate 24 is designed concentrically with the rotating axis of the turning handle 2, the clearance groove 25 and the positioning block 30 are connected in a clearance fit, and the clearance grooves 25 are evenly distributed on the outer surface of the track plate 24, and the clearance grooves 25 penetrate the upper and lower surfaces of the track plate 24, the track plate 24 and the track rod 23 are slidably connected, the lower surface of the limit rotating plate 26 fits with the upper surface of the track plate 24, and one end of the limit rotating plate 26 is designed in a cross-section, and the other end of the limit rotating plate 26 is designed in an arc shape, and the upper surface of the limit rotating plate 26 is lower than the lower surface of the positioning block 30. When it is necessary to limit the degree of rotation of the turning handle 2, first adjust the turning handle 2 so that the water temperature sprayed from the nozzle reaches the appropriate water temperature. At this time, observe the yield groove 25 closest to the positioning block 30, and then press the turning handle 2 downward so that the turning handle 2 drives the positioning block 30 to prevent rotation upward. Since the positioning block 30 is located opposite the yield groove 25 at this time, the turning handle 2 cannot be pressed down into place. Loosen the tightening bolt 29 so that the clamping plate 28 relaxes the pressure on the clamping rod 27. At this time, fine-tune the clamping rod 27 until the clamping rod 27 drives the track plate 24 to slide relative to the track rod 23 so that the yield groove 25 is opposite the positioning block 30. At this time, continue to press down the turning handle 2 to verify whether the positioning block 30 can pass through the yield groove 25. When the positioning block 30 passes through the yield groove 25, turn it in the opposite direction. By tightening the bolt 29, the tightening bolt 29 drives the clamping plate 28 to press the clamping rod 27 through the threaded connection with the magnet sticking rod 22, so that the track plate 24 cannot rotate. Then, the remaining limit rotating plate 26 installed above the yielding groove 25 that is not directly opposite to the positioning block 30 is rotated, so that the non-cross-section end of the limit rotating plate 26 is rotated to the side facing the yielding groove 25. At this time, when the turning handle 2 is lifted, the positioning block 30 can only be rotated to the corresponding yielding groove 25 to not block the lifting and opening of the turning handle 2, thereby ensuring that the water temperature is constant each time the turning angle of the turning handle 2 is rotated. When there is no need to limit the rotation of the turning handle 2, the sliding magnet sticking rod 22 is separated from the adsorption of the connecting plate 16, so that the track rod 23 drives the track plate 24 to slide away from the positioning block 30.Thereby achieving the purpose of not blocking the normal opening of the turning handle 2.

[0040] Working principle: When using the constant temperature and anti-scalding faucet, part of the cold water in the cold water pipe shell 4 is injected into the cooling pipe 8 through the connecting pipe 17 to cool the outer surface of the hot water pipe shell 3. The cold water after absorbing heat is mixed with the hot water in the hot water pipe 6 through the converging chamber 9 and then injected into the water outlet valve body 1. When the water outlet valve body 1 is pressed down and closed, the connecting pipe 17 is closed by the engagement of the sealing plate 18 and the sealing block 19. The limit rotating plate 26 is rotated to block and close the give way groove 25 on the side surface of the track plate 24, so that the turning handle 2 can only be lifted up and opened at a predetermined angle by the positioning block 30 passing through the give way groove 25, eliminating the process of repeatedly adjusting the water temperature.

[0041] 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. A constant temperature anti-scalding faucet, comprising a water outlet valve body (1), a turning handle (2), a hot water pipe shell (3), a cold water pipe shell (4) and a connecting nut (5), characterized in that: A turning handle (2) is installed at the upper end of the water outlet valve body (1); a hot water pipe shell (3) is connected to one side of the water outlet valve body (1), and a cold water pipe shell (4) is installed on the other side of the water outlet valve body (1); the hot water pipe shell (3) and the cold water pipe shell (4) are fixedly installed with the water outlet valve body (1) at one end thereof facing the water outlet valve body (1) via a connecting nut (5); a hot water pipe (6) is provided inside the hot water pipe shell (3), and a hot water pipe (6) is provided inside the end of the hot water pipe shell (3) away from the water outlet valve body (1). A connecting groove (7) is provided, and a cooling pipe (8) is provided inside the outer surface of the hot water pipe shell (3); a converging cavity (9) is provided at one end of the hot water pipe shell (3) connected to the water outlet valve body (1); a connecting plate (10) is fixedly installed at one end of the hot water pipe shell (3) away from the water outlet valve body (1); the connecting plate (10) and one end of the cold water pipe shell (4) are respectively connected to the water supply pipeline; a sealing plug (11) is fixedly provided on the outer surface of one side of the connecting plate (10) facing the inside of the hot water pipe shell (3) ), a cold water pipe (12) is provided inside the cold water pipe shell (4), a pressure valve (13) is installed inside the end of the cold water pipe (12) facing the water outlet valve body (1), a water outlet joint (14) is installed on the surface of the end of the cold water pipe shell (4) away from the water outlet valve body (1), a water inlet joint (15) is installed on the surface of the end of the hot water pipe shell (3) away from the water outlet valve body (1), a connecting plate (16) is provided between the water outlet joint (14) and the water inlet joint (15), the A connecting tube (17) is provided inside the connecting plate (16), a sealing plate (18) is fixedly provided inside the upper end of the connecting tube (17), a sealing block (19) penetrates the upper end side surface of the connecting plate (16), one end of the sealing block (19) is fixedly connected to a sliding rod (20), an extrusion plate (21) is fixedly provided on the side surface of one end of the turning handle (2) facing the connecting plate (16), and a positioning block (30) is fixedly provided on the side surface of the turning handle (2) facing the connecting plate (16).

2. The constant temperature anti-scalding faucet according to claim 1, characterized in that: The hot water pipe shell (3) and the cold water pipe shell (4) are fixedly mounted on the water outlet valve body (1) via a connecting nut (5), and the hot water pipe shell (3) and the connecting plate (10) are threadedly connected.

3. The constant temperature anti-scalding faucet according to claim 1, characterized in that: The connecting groove (7) is of an annular design, and one end of the connecting groove (7) is penetrated by a cooling pipe (8), and the other end of the cooling pipe (8) penetrates the outer surface of the converging cavity (9), and the converging cavity (9) is connected to the hot water pipe (6).

4. The constant temperature anti-scalding faucet according to claim 1, characterized in that: The sealing plug (11) is a tube made of silica gel, and the sealing plug (11) and the connecting groove (7) are in a tight-fitting sliding connection.

5. The constant temperature anti-scalding faucet according to claim 1, characterized in that: The two ends of the connecting pipe (17) are respectively engaged with the water outlet joint (14) and the water inlet joint (15), and the side surface of the connecting pipe (17) is penetrated by a sealing block (19). One end of the water outlet joint (14) penetrates the outer surface of the cold water pipe (12), and one end of the water inlet joint (15) penetrates the side surface of the connecting groove (7). One end of the sealing block (19) is engaged with the sealing plate (18), and the outer surfaces of the sealing block (19) and the sealing plate (18) are in contact with the inner surface of the connecting pipe (17).

6. The constant temperature anti-scalding faucet according to claim 1, characterized in that: One end of the sliding rod (20) passes through the outer surface of the connecting plate (16), and the end of the sliding rod (20) located outside the connecting plate (16) is designed to be a right-angled trapezoid, and the inclined surface of one end of the right-angled trapezoid of the sliding rod (20) is designed to face downward. A spring is connected between the sealing block (19) and the connecting plate (16), and the outer surface of one end of the right-angled trapezoid of the sliding rod (20) is in contact with the outer surface of the extrusion plate (21), and the extrusion plate (21) is designed to be arc-shaped.

7. The constant temperature anti-scalding faucet according to claim 1, characterized in that: The side surface of the connecting plate (16) is adsorbed with a magnet sticking rod (22), the side surface of the magnet sticking rod (22) is fixedly provided with a track rod (23), and one end of the track rod (23) is fixedly connected to a track plate (24), the side surface of the track plate (24) is provided with a clearance groove (25), and the upper surface of the track plate (24) is installed with a rotatable limit rotating plate (26), the outer surface of the track plate (24) is fixedly provided with a clamping rod (27), the interior of the magnet sticking rod (22) is installed with a sliding clamping plate (28), and the upper surface of the clamping plate (28) is connected with a rotatable tightening bolt (29).

8. The constant temperature anti-scalding faucet according to claim 7, characterized in that: The track rod (23) passes through the outer surface of the connecting plate (16), and the track rod (23) is slidably connected to the connecting plate (16), the magnet sticking rod (22) is threadedly connected to the tightening bolt (29), and the tightening bolt (29) is rotationally connected to the clamping plate (28), and the lower surface of the clamping plate (28) is in contact with the upper surface of the clamping rod (27).

9. The constant temperature anti-scalding faucet according to claim 7, characterized in that: The track plate (24) is designed to be arc-shaped, and the side surface of the track plate (24) fits the side surface of the turning handle (2), and the track plate (24) and the turning axis of the turning handle (2) are designed to be concentric, the clearance groove (25) and the positioning block (30) are connected in a clearance-fitting snap-fit ​​manner, and the clearance grooves (25) are evenly distributed on the outer surface of the track plate (24), and the clearance grooves (25) penetrate the upper and lower surfaces of the track plate (24), and the track plate (24) and the track rod (23) are slidably connected.

10. The constant temperature anti-scalding faucet according to claim 7, characterized in that: The lower surface of the limit rotating plate (26) is in contact with the upper surface of the track plate (24), one end of the limit rotating plate (26) is designed as a cross section, and the other end of the limit rotating plate (26) is designed as an arc, and the upper surface of the limit rotating plate (26) is lower than the lower surface of the positioning block (30).

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