Valve element capable of prolonging temperature adjusting area

Abstract

A valve element capable of prolonging a temperature adjusting area comprises a valve shell, a valve plate module and a valve handle, the valve plate module comprises a static valve plate and a movable valve plate, the static valve plate is provided with a cold water passing port, a hot water passing port and a mixed water passing port, and the movable valve plate is provided with a mixed adjusting cavity, a cold water compensation cavity and a hot water compensation cavity. Due to the fact that the cold water compensation cavity can timely supplement cold water in the cold water passing port to the mixing adjusting cavity in the state that the movable valve plate rotates till the water temperature in the mixing adjusting cavity becomes high from low, the water temperature in the mixing adjusting cavity is prevented from rising too fast. In addition, the hot water compensation cavity can timely supplement hot water in the hot water passing port to the mixing adjusting cavity in the state that the movable valve plate rotates till the water temperature in the mixing adjusting cavity is changed from high to low, so that the water temperature in the mixing adjusting cavity is prevented from being reduced too fast, and finally the temperature adjusting area of the whole valve element is prolonged; and the embarrassing water use phenomenon caused by too fast water temperature change due to too sensitive temperature adjustment in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of faucet valve cores, in particular to a valve core capable of extending a temperature adjustment area. Background Art

[0002] As the core component of a faucet, the valve core primarily relies on the movement of the valve stem to achieve basic functions such as directional control, pressure control, or flow control. A mixing valve core is a type of valve core that primarily consists of a valve housing, a ceramic stator installed within the housing, and a ceramic rotor. The rotor is connected to the valve stem. Rotating the valve stem drives the rotor to rotate synchronously, changing the overlap area of ​​the flow holes on the stator and rotor, thereby regulating the amount of hot and cold water flowing in and adjusting the temperature of the mixed water.

[0003] The water mixing valve core generally has both flow regulation and water mixing functions. The temperature of the mixed water coming out of the water outlet is controlled by adjusting the relative angle of the rotating valve stem. For example, the Chinese utility model patent No. ZL200420118665.4 (publication No. CN2761932Y) "Ceramic control valve and fixed disc for controlling the mixing ratio of cold and hot water and the amount of water output" discloses such a structure, which includes a valve housing and a valve core. The valve core includes a fixed disc, a movable disc and a control rod. The fixed disc is provided with a hot water inlet, a cold water inlet and a water outlet. The hole walls of the hot water inlet and the cold water inlet respectively have an inlet slope that gradually expands outward toward the bottom surface and an outlet slope that gradually expands outward toward the top surface. The hole wall of the water outlet has a guide slope that gradually expands outward toward the top surface and an expansion groove extending to the side of the hole wall of the water outlet. The bottom of the movable disc is recessed with an adjustment groove that matches the hot water inlet, cold water inlet and water outlet. The position of the adjustment groove is moved to determine the mixing ratio of cold and hot water and achieve the purpose of temperature control.

[0004] However, this type of thermostatic valve core also has the defect of being overly sensitive to temperature adjustment. Since the human body adapts to a narrow range of water temperature, the optimal water temperature is generally in the range of 37℃ to 42℃. During the initial temperature adjustment process, the rotation or swing angle of the valve stem is often difficult to control accurately. As a result, when people use the faucet, they often find that the water temperature was very low just now, but after slightly turning the valve stem, they find that the water temperature is too high. The water temperature cannot be quickly and accurately adjusted, resulting in embarrassing water use.

[0005] Therefore, how to provide a valve core with a reasonable and compact structure and which can effectively extend the temperature adjustment area to make water temperature adjustment easier to control is an urgent problem that needs to be solved by those skilled in the art. Utility Model Content

[0006] The technical problem to be solved by the present invention is to provide a valve core with an extendable temperature adjustment area, which has a reasonable and compact structure and can effectively extend the temperature adjustment area to make water temperature adjustment easier to control, in response to the above technical status quo.

[0007] The technical solution adopted by the utility model to solve the above technical problems is as follows: the valve core with extended temperature adjustment area comprises a valve housing, a valve plate module and a valve handle for controlling the action of the valve plate module; a valve core cavity for installing the valve plate module is formed inside the valve housing; a cold water inlet, a hot water inlet and a mixed water outlet communicating with the valve core cavity are provided at the bottom of the valve housing; the valve plate module comprises a static valve plate and a movable valve plate movable relative to the static valve plate; the static valve plate is provided with a cold water inlet, a hot water inlet and a mixed water outlet connected to the cold water inlet, the hot water inlet and the mixed water outlet; the movable valve plate is provided with a mixing adjustment cavity which can be adapted between the cold water inlet, the hot water inlet and the mixed water outlet to adjust the mixing ratio of cold and hot water; the movable valve plate is also provided with a cold water compensation cavity and a hot water compensation cavity;

[0008] When the movable valve plate rotates to a state where the proportion of hot water entering the mixing and regulating chamber is greater than the proportion of cold water, the cold water compensation chamber can connect the cold water inlet and the mixing and regulating chamber, and the cold water in the cold water inlet is replenished into the mixing and regulating chamber to prevent the water temperature in the mixing and regulating chamber from rising too quickly;

[0009] When the movable valve plate rotates to a state where the proportion of cold water entering the mixing adjustment chamber is greater than the proportion of hot water, the hot water compensation chamber can connect the hot water outlet and the mixing adjustment chamber and allow the hot water in the hot water outlet to be replenished into the mixing adjustment chamber to prevent the water temperature in the mixing adjustment chamber from dropping too quickly.

[0010] In order to optimize the overall layout of the mixing adjustment chamber, the cold water compensation chamber and the hot water compensation chamber, so that the three can better realize their respective functions, preferably, the mixing adjustment chamber includes an inlet area and an outlet area that are interconnected, and the cold water compensation chamber and the hot water compensation chamber are distributed on opposite sides of the outlet area along the circumferential direction of the movable valve plate.

[0011] In order to optimize the cavity structure of the cold water compensation chamber and the hot water compensation chamber, so that the cold water compensation chamber can be better connected between the cold water inlet and the mixing adjustment chamber, and the hot water compensation chamber can be better connected between the hot water inlet and the mixing adjustment chamber, preferably, the cold water compensation chamber extends along the circumference of the movable valve plate to form a narrow arc groove, so that the cold water compensation chamber can be timely connected to the cold water inlet and the mixing inlet when the movable valve plate rotates to the set position, and the hot water compensation chamber extends along the circumference of the movable valve plate to form a narrow arc groove, so that the hot water compensation chamber can be timely connected to the hot water inlet and the mixing inlet when the movable valve plate rotates to the set position.

[0012] In order to optimize the channel structure of the mixing water outlet so that it can better connect with the cold water compensation chamber and the hot water compensation chamber, preferably, the water inlet end of the mixing water outlet is formed with an expansion area for expanding the water receiving area of ​​the mixing water outlet to facilitate the communication between the cold water compensation chamber and the hot water compensation chamber.

[0013] In order to better control the valve plate module to switch the water outlet, preferably, the valve plate module also includes a rotor and a dial arranged in sequence, the rotor can be rotatably provided on the valve housing, the valve handle is hinged to the rotor and can swing back and forth to drive the dial to move, the dial is constrained to the bottom of the rotor and can rotate with the rotor and can slide relative to the rotor, the movable valve plate is fixed on the bottom surface of the dial, and the static valve plate is fixed to the bottom of the valve core cavity, the rotation of the movable valve plate is used to adjust the mixing ratio of cold water and hot water, and the sliding of the movable valve plate is used to close or let in water.

[0014] In order to optimize the overall structure of the valve housing and enable the entire valve core to be better produced and assembled, preferably, the valve housing includes an outer shell and a valve cover, and the valve cover can be detachably connected to the top of the outer shell through a detachable structure. The upper end of the valve handle is exposed at the top of the valve cover, and the cold water inlet, hot water inlet and mixed water outlet are all opened at the bottom of the outer shell.

[0015] In order to enable the detachable structure here to better achieve rapid disassembly and rapid positioning, preferably, the detachable structure includes a clip provided on the valve cover and a slot provided on the outer shell and capable of adapting to the clip, the outer shell is also provided with a positioning slot, and the valve cover is provided with a positioning block capable of adapting to the positioning slot.

[0016] In order to better install the valve plate module on the valve cover, preferably, a mounting hole running through the upper and lower parts is formed on the valve cover, and the rotor is rotatably built into the mounting hole. The upper end of the valve handle is exposed at the top of the valve cover to facilitate driving the valve handle to swing or rotate, and the lower end of the valve handle is connected to the dial to facilitate driving the dial to move or rotate.

[0017] In order to ensure that the rotor driven by the valve handle can be limited in time after rotating to the extreme position, preferably, the inner side of the valve cover is formed with a first limit block and a second limit block distributed along the circumferential direction, and the rotor is formed with a first limit wall adapted to the first limit block and a second limit wall adapted to the second limit block. When the rotor rotates forward to the first position, the first limit wall can press against the side of the first limit block to limit the rotor from continuing to rotate. When the rotor is reversed to the second position, the second limit wall can press against the side of the second limit block to limit the rotor from continuing to rotate.

[0018] Compared with the prior art, the advantages of the present invention are: by arranging a cold water compensation chamber and a hot water compensation chamber on the movable valve plate, the cold water compensation chamber here can timely replenish the cold water in the cold water outlet to the mixing adjustment chamber when the movable valve plate rotates to the state where the water temperature in the mixing adjustment chamber changes from low to high, thereby preventing the water temperature in the mixing adjustment chamber from rising too quickly, and the hot water compensation chamber here can timely replenish the hot water in the hot water outlet to the mixing adjustment chamber when the movable valve plate rotates to the state where the water temperature in the mixing adjustment chamber changes from high to low, thereby preventing the water temperature in the mixing adjustment chamber from dropping too quickly, and finally extending the temperature adjustment area of ​​the entire valve core, solving the embarrassing water use phenomenon caused by the excessive sensitivity of temperature adjustment in the prior art and the rapid change of water temperature, so that the valve stem can accurately control the water temperature when it rotates normally, and the water temperature adjustment can also become easier to control, thereby improving the user's water use experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the three-dimensional structure of this embodiment;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure from the bottom perspective of this embodiment;

[0021] Figure 3 This is a schematic diagram of the structure of the decomposed state of this embodiment;

[0022] Figure 4 This is a schematic diagram of the structure of the embodiment in another decomposition state from another angle;

[0023] Figure 5 Schematic diagram of the three-dimensional structure of the movable valve plate in this embodiment;

[0024] Figure 6 Schematic diagram of the coordination between the static valve disc and the dynamic valve disc in this embodiment (the valve core is in the closed state);

[0025] Figure 7 Schematic diagram of the coordination between the static valve disc and the dynamic valve disc in this embodiment (the valve core is in the open state, the ratio of cold and hot water remains the same, and the cold water compensation chamber and the hot water compensation chamber are both in the water replenishing state);

[0026] Figure 8 Schematic diagram of the coordination between the static valve disc and the dynamic valve disc in this embodiment (the valve core is in the open state, the cold water compensation chamber is in the water replenishing state, and the direction indicated by arrow A is the rotation direction of the dynamic valve disc when the water temperature changes from low to high);

[0027] Figure 9 for Figure 8 Schematic diagram of the structure after the movable valve plate rotates to the limit position along the arrow A;

[0028] Figure 10Schematic diagram of the coordination between the static valve disc and the dynamic valve disc in this embodiment (the valve core is in the open state, the hot water compensation chamber is in the water replenishing state, and the direction indicated by arrow B is the rotation direction of the dynamic valve disc when the water temperature changes from high to low);

[0029] Figure 11 Schematic diagram of the structure of the rotor in this embodiment rotating forward to the first position;

[0030] Figure 12 Schematic diagram of the structure of the rotor in this embodiment rotating forward to the second position. DETAILED DESCRIPTION

[0031] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0032] Figures 1 to 12 FIG. 1 is a schematic diagram of the embodiment. The valve core capable of extending the temperature adjustment area of ​​the embodiment mainly includes a valve housing 1 , a valve plate module 2 , a valve handle 3 , and the like.

[0033] refer to Figures 1 to 4 As shown, in this embodiment, the valve handle 3 is used to control the action of the valve plate module 2, and a valve core cavity 1d for installing the valve plate module 2 is formed inside the valve housing 1. A cold water inlet 1a, a hot water inlet 1b and a mixed water outlet 1c connected to the valve core cavity 1d are provided at the bottom of the valve housing 1. The valve plate module 2 includes a static valve plate 2a and a movable valve plate 2b that can move relative to the static valve plate 2a. The static valve plate 2a is provided with a cold water inlet 2a1, a hot water inlet 2a2 and a mixed water outlet 2a3 connected to the cold water inlet 1a, the hot water inlet 1b and the mixed water outlet 1c. The movable valve plate 2b is provided with a mixing adjustment cavity 2b3 that can be adapted between the cold water inlet 2a1, the hot water inlet 2a2 and the mixed water outlet 2a3 to adjust the mixing ratio of cold and hot water. A cold water compensation chamber 2b1 and a hot water compensation chamber 2b2 are also provided on the upper surface; when the movable valve plate 2b is rotated to the state where the proportion of hot water entering the mixing adjustment chamber 2b3 is greater than the proportion of cold water, the cold water compensation chamber 2b1 can communicate with the cold water inlet 2a1 and the mixing adjustment chamber 2b3, and the cold water in the cold water inlet 2a1 is replenished into the mixing adjustment chamber 2b3 to prevent the water temperature in the mixing adjustment chamber 2b3 from rising too quickly; when the movable valve plate 2b is rotated to the state where the proportion of cold water entering the mixing adjustment chamber 2b3 is greater than the proportion of hot water, the hot water compensation chamber 2b2 can communicate with the hot water inlet 2a2 and the mixing adjustment chamber 2b3, and the hot water in the hot water inlet 2a2 is replenished into the mixing adjustment chamber 2b3 to prevent the water temperature in the mixing adjustment chamber 2b3 from falling too quickly.

[0034] Here is an explanation of the specific water replenishment principle of the cold water compensation chamber 2b1 and the hot water compensation chamber 2b2: Figures 6 to 10 As shown, Figure 6 The figure shows the coordination between the static valve disc and the dynamic valve disc when the valve core is in the closed state; Figure 7 This is a diagram showing the coordination of swinging the valve handle 3 to open the valve core. At this time, the ratio of hot and cold water remains consistent, and both the cold water compensation chamber 2b1 and the hot water compensation chamber 2b2 are in the replenishing state, so that the water volume at the mixed water outlet 1c is maintained at the maximum state; Figure 8 The valve core is in the open state, and the cold water compensation chamber 2b1 is in the water replenishing state. The direction indicated by arrow A is the rotation direction of the movable valve plate 2b when the water temperature changes from low to high. Figure 9 for Figure 8 Schematic diagram of the structure after the movable valve plate in the figure rotates to the limit position along the arrow A. At this time, the cold water compensation chamber 2b1 is no longer in the water replenishment state; Figure 10 The valve core is in the open state, and the hot water compensation chamber 2b2 is in the water supply state. Arrow B indicates the direction of rotation of the movable valve disc 2b when the water temperature changes from high to low. When the cold water compensation chamber 2b1 and the hot water compensation chamber 2b2 are in the water supply state, the temperature adjustment range of the valve core can be extended in a timely manner.

[0035] In order to optimize the overall layout of the mixing adjustment chamber 2b3, the cold water compensation chamber 2b1 and the hot water compensation chamber 2b2 so that the three can better realize their respective functions, reference is made to Figure 5 As shown, in this embodiment, the mixing and regulating chamber 2b3 includes a water inlet area 2b4 and a water outlet area 2b5 that are interconnected, and the cold water compensation chamber 2b1 and the hot water compensation chamber 2b2 are distributed on opposite sides of the water outlet area 2b5 along the circumference of the movable valve plate 2b.

[0036] Secondly, in order to optimize the cavity structure of the cold water compensation chamber 2b1 and the hot water compensation chamber 2b2, so that the cold water compensation chamber 2b1 can be better connected between the cold water outlet 2a1 and the mixing adjustment chamber 2b3, and the hot water compensation chamber 2b2 can be better connected between the hot water outlet 2a2 and the mixing adjustment chamber 2b3, refer to Figure 5 As shown, in this embodiment, the cold water compensation chamber 2b1 extends along the circumference of the movable valve disc 2b to form a narrow arc-shaped groove, so that the cold water compensation chamber 2b1 can promptly connect with the cold water outlet 2a1 and the mixed water outlet 2a3 when the movable valve disc 2b rotates to the set position, and the hot water compensation chamber 2b2 extends along the circumference of the movable valve disc 2b to form a narrow arc-shaped groove, so that the hot water compensation chamber 2b2 can promptly connect with the hot water outlet 2a2 and the mixed water outlet 2a3 when the movable valve disc 2b rotates to the set position.

[0037] At the same time, in order to optimize the channel structure of the mixed water outlet 2a3 so that it can better connect with the cold water compensation chamber 2b1 and the hot water compensation chamber 2b2, Figure 3 As shown, in this embodiment, the water inlet end of the mixing water port 2a3 is formed with an expansion area 2a4 for expanding the water receiving area of ​​the mixing water port 2a3 to facilitate the communication between the cold water compensation chamber 2b1 and the hot water compensation chamber 2b2.

[0038] In addition, in order to better control the valve module 2 to switch the water out, refer to Figure 2 and Figure 3 As shown, in this embodiment, the valve disc module 2 also includes a rotor 2c and a dial 2d arranged in sequence. The rotor 2c is rotatably arranged on the valve housing 1. The valve handle 3 is hinged to the rotor 2c and can swing back and forth to drive the dial 2d to move. The dial 2d is constrained to the bottom of the rotor 2c and can rotate with the rotor 2c and can slide relative to the rotor 2c. The movable valve disc 2b is fixed to the bottom surface of the dial 2d, and the static valve disc 2a is fixed to the bottom of the valve core cavity 1d. The rotation of the movable valve disc 2b is used to adjust the mixing ratio of cold water and hot water, and the sliding of the movable valve disc 2b is used to close or let in water.

[0039] In this embodiment, in order to optimize the overall structure of the valve housing 1 so that the entire valve core can be better produced and assembled, Figure 1 and Figure 4 As shown, the valve housing 1 includes an outer shell 11 and a valve cover 12. The valve cover 12 is detachably connected to the top of the outer shell 11 through a detachable structure. The upper end of the valve handle 3 is exposed at the top of the valve cover 12. The cold water inlet 1a, the hot water inlet 1b and the mixed water outlet 1c are all opened at the bottom of the outer shell 11.

[0040] In order to enable the detachable structure to better achieve rapid disassembly and rapid positioning, the detachable structure here includes a buckle 12a provided on the valve cover 12 and a slot 11a provided on the shell 11 and capable of adapting to the buckle 12a. The shell 11 is also provided with a positioning groove 11b, and the valve cover 12 is provided with a positioning block 12b that can be adapted in the positioning groove 11b.

[0041] In this embodiment, in order to better install the valve plate module 2 on the valve cover 12, refer to Figure 2 and Figure 3 As shown, a mounting hole 12c is formed on the valve cover 12, which passes through the valve cover 12 from top to bottom. The rotor 2c is rotatably built into the mounting hole 12c. The upper end of the valve handle 3 is exposed on the top of the valve cover 12 to facilitate driving the valve handle 3 to swing or rotate. The lower end of the valve handle 3 is connected to the dial 2d to facilitate driving the dial 2d to move or rotate.

[0042] refer to Figure 11 and Figure 12As shown, in this embodiment, in order to enable the rotor 2c driven by the valve handle 3 to be limited in time after rotating to the extreme position, a first limit block 12d and a second limit block 12e distributed along the circumferential direction are specially formed on the inner side of the valve cover 12, and a first limit wall 2c1 adapted to the first limit block 12d and a second limit wall 2c2 adapted to the second limit block 12e are formed on the rotor 2c. When the rotor 2c rotates forward to the first position, the first limit wall 2c1 can abut against the side of the first limit block 12d to limit the rotor 2c from continuing to rotate. When the rotor 2c reverses to the second position, the second limit wall 2c2 can abut against the side of the second limit block 12e to limit the rotor 2c from continuing to rotate.

[0043] Additional explanation is required here: in this embodiment, by providing a cold water compensation chamber 2b1 and a hot water compensation chamber 2b2 on the movable valve plate 2b, the cold water compensation chamber 2b1 here can timely replenish the cold water in the cold water inlet 2a1 to the mixing adjustment chamber 2b3 when the movable valve plate 2b rotates to the state where the water temperature in the mixing adjustment chamber 2b3 changes from low to high, thereby preventing the water temperature in the mixing adjustment chamber 2b3 from rising too quickly, and the hot water compensation chamber 2b2 here can timely replenish the hot water in the hot water inlet 2a2 to the mixing adjustment chamber 2b3 when the movable valve plate 2b rotates to the state where the water temperature in the mixing adjustment chamber 2b3 changes from high to low, thereby preventing the water temperature in the mixing adjustment chamber 2b3 from dropping too quickly, ultimately extending the temperature adjustment area of ​​the entire valve core, solving the embarrassing water use phenomenon caused by the excessive sensitivity of the temperature adjustment in the prior art and the rapid change of water temperature, so that the valve stem 3 can accurately control the water temperature during normal rotation, and the water temperature adjustment can also become easier to control, thereby improving the user's water use experience.

[0044] It should be noted that in the description of this embodiment, the terms "front, back", "left, right", "inside, outside", "up, down", etc. indicating directions or positional relationships are all based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. The terms "install", "connect", and "connected" should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, or integrally connected; they can be directly connected, or indirectly connected through an intermediate medium, or they can be internal connections between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A valve core capable of extending a temperature adjustment area, comprising a valve housing (1), a valve plate module (2), and a valve handle (3) for controlling the movement of the valve plate module (2); a valve core cavity (1d) for mounting the valve plate module (2) is formed inside the valve housing (1); a cold water inlet (1a), a hot water inlet (1b), and a mixed water outlet (1c) communicating with the valve core cavity (1d) are provided at the bottom of the valve housing (1); the valve plate module (2) comprises a stationary valve plate (2a) and a valve member (3) capable of moving relative to the stationary valve plate (2a); The movable valve plate (2b) is provided with a cold water inlet (2a1), a hot water inlet (2a2) and a mixed water outlet (2a3) connected to the cold water inlet (1a), the hot water inlet (1b) and the mixed water outlet (1c) on the static valve plate (2a); the movable valve plate (2b) is provided with a mixing adjustment chamber (2b3) that can be adapted between the cold water inlet (2a1), the hot water inlet (2a2) and the mixed water outlet (2a3) to adjust the mixing ratio of cold and hot water, and is characterized in that: The movable valve plate (2b) is further provided with a cold water compensation chamber (2b1) and a hot water compensation chamber (2b2); When the movable valve plate (2b) rotates to a state where the proportion of hot water entering the mixing and regulating chamber (2b3) is greater than the proportion of cold water, the cold water compensation chamber (2b1) can connect the cold water inlet (2a1) and the mixing and regulating chamber (2b3) and replenish the cold water in the cold water inlet (2a1) into the mixing and regulating chamber (2b3) to prevent the water temperature in the mixing and regulating chamber (2b3) from rising too quickly; When the movable valve plate (2b) is rotated to a state where the proportion of cold water entering the mixing and regulating chamber (2b3) is greater than the proportion of hot water, the hot water compensation chamber (2b2) ​​can connect the hot water outlet (2a2) and the mixing and regulating chamber (2b3) and allow the hot water in the hot water outlet (2a2) to be replenished into the mixing and regulating chamber (2b3) to prevent the water temperature in the mixing and regulating chamber (2b3) from decreasing too quickly.

2. The valve core with an extended temperature adjustment range according to claim 1, characterized in that: The mixing and regulating chamber (2b3) comprises a water inlet area (2b4) and a water outlet area (2b5) that are interconnected, and the cold water compensation chamber (2b1) and the hot water compensation chamber (2b2) ​​are distributed at intervals on opposite sides of the water outlet area (2b5) along the circumference of the movable valve plate (2b).

3. The valve core with an extended temperature adjustment range according to claim 1, characterized in that: The cold water compensation chamber (2b1) extends along the circumference of the movable valve plate (2b) to form a narrow arc-shaped groove, so that the cold water compensation chamber (2b1) can promptly connect the cold water outlet (2a1) and the mixed water outlet (2a3) when the movable valve plate (2b) rotates to the set position. The hot water compensation chamber (2b2) ​​extends along the circumference of the movable valve plate (2b) to form a narrow arc-shaped groove, so that the hot water compensation chamber (2b2) ​​can promptly connect the hot water outlet (2a2) and the mixed water outlet (2a3) when the movable valve plate (2b) rotates to the set position.

4. The valve core with an extendable temperature adjustment range according to claim 1, characterized in that: The water inlet end of the mixing water outlet (2a3) is formed with an expansion area (2a4) for expanding the water receiving area of ​​the mixing water outlet (2a3) to facilitate communication between the cold water compensation chamber (2b1) and the hot water compensation chamber (2b2).

5. The valve core with an extendable temperature adjustment range according to any one of claims 1 to 4, characterized in that: The valve plate module (2) further comprises a rotor (2c) and a dial (2d) which are arranged in sequence. The rotor (2c) is rotatably arranged on the valve housing (1). The valve handle (3) is hinged to the rotor (2c) and can swing back and forth to drive the dial (2d) to move. The dial (2d) is constrained at the bottom of the rotor (2c) and can rotate with the rotor (2c) and can slide relative to the rotor (2c). The movable valve plate (2b) is fixed to the bottom surface of the dial (2d), and the static valve plate (2a) is fixed to the bottom of the valve core cavity (1d). The rotation of the movable valve plate (2b) is used to adjust the mixing ratio of cold water and hot water, and the sliding of the movable valve plate (2b) is used to close or allow water in.

6. The valve core with an extendable temperature adjustment range according to claim 5, characterized in that: The valve housing (1) comprises an outer shell (11) and a valve cover (12); the valve cover (12) is detachably connected to the top of the outer shell (11) via a detachable structure; the upper end of the valve handle (3) is exposed at the top of the valve cover (12); and the cold water inlet (1a), the hot water inlet (1b) and the mixed water outlet (1c) are all provided at the bottom of the outer shell (11).

7. The valve core with an extendable temperature adjustment range according to claim 6, characterized in that: The detachable structure comprises a buckle (12a) provided on the valve cover (12) and a slot (11a) provided on the housing (11) and adapted to fit the buckle (12a); a positioning slot (11b) is further provided on the housing (11); and a positioning block (12b) adapted to fit within the positioning slot (11b) is provided on the valve cover (12).

8. The valve core with an extended temperature adjustment range according to claim 6, characterized in that: The valve cover (12) is formed with a mounting hole (12c) extending vertically therethrough. The rotor (2c) is rotatably built into the mounting hole (12c). The upper end of the valve handle (3) is exposed on the top of the valve cover (12) to facilitate driving the valve handle (3) to swing or rotate. The lower end of the valve handle (3) is connected to the dial (2d) to facilitate driving the dial (2d) to move or rotate.

9. The valve core with an extendable temperature adjustment range according to claim 6, characterized in that: A first limiting block (12d) and a second limiting block (12e) spaced apart along the circumferential direction are formed on the inner side of the valve cover (12); a first limiting wall (2c1) adapted to the first limiting block (12d) and a second limiting wall (2c2) adapted to the second limiting block (12e) are formed on the rotor (2c); when the rotor (2c) rotates forward to the first position, the first limiting wall (2c1) can press against the side of the first limiting block (12d) to limit the rotor (2c) from continuing to rotate; when the rotor (2c) rotates backward to the second position, the second limiting wall (2c2) can press against the side of the second limiting block (12e) to limit the rotor (2c) from continuing to rotate.

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