Cold and hot temperature adjusting concealed switch valve

Abstract

The utility model discloses a cold and hot temperature regulating concealed switch valve which comprises a cassette seat, a main body part, a cassette cover, a protective cover, a panel part and a handle, the cassette cover and the cassette seat are installed together, and the main body part is installed on the cassette seat and located in the cassette cover; the main body part comprises an upper water diversion main body, a lower water diversion main body and a cold and hot mixing main body; the cold and hot mixing main body is provided with a cold water inlet, a hot water inlet and a switch valve component for controlling the cold water inlet and the hot water inlet to open and close; the upper end of the cold-hot mixing main body is communicated with a shower through an upper water diversion main body, and the lower end is communicated with a shower through a lower water diversion main body; the upper water distribution main body and the lower water distribution main body are structurally symmetrical, the two water distribution main bodies are provided with key valve elements, and opening and closing of the two key valve elements are independently controlled and do not interfere with each other. The upper and lower water diversion main body structures of the device are symmetrical, the upper and lower water diversion main bodies can be assembled reversely and can be practical, and the double check valves can prevent cold and hot water from mixing and prevent cold and hot water from being cold and hot; a user can enjoy the top spraying function and the hand lifting function at the same time, and two persons can take a bath conveniently.

Description

Technical Field

[0001] This utility model relates to the field of temperature control valve technology, and in particular to a concealed switching valve for temperature control. Background Technology

[0002] Most hot and cold water regulating valves on the market are equipped with water outlets, handheld shower heads, and overhead shower heads. They can be turned on and off and adjust the temperature using a single handle, but they can only spray water in one direction. They cannot achieve multiple water outlets when certain needs are met. To achieve multiple water outlet functions, a separate reversing valve is required, which is not only inconvenient to use, but also increases costs and affects the appearance. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a concealed switching valve for hot and cold temperature regulation.

[0004] This utility model is achieved through the following technical solution: a concealed switching valve for hot and cold temperature regulation, comprising a concealed housing, a main body, a concealed housing cover, a protective cover, a panel component, and a handle; the concealed housing cover is a fence-like shell formed by four walls, and the concealed housing cover is installed together with the concealed housing base; the main body is installed on the concealed housing base and located inside the concealed housing cover; the main body includes an upper water distribution body, a lower water distribution body, and a hot and cold mixing body; the hot and cold mixing body is provided with a cold water inlet, a hot water inlet, and a switching valve component for controlling the opening and closing of the cold and hot water inlets; one end of the upper water distribution body is connected to the hot and cold mixing body. The main body is connected, and its other end is connected to the shower. One end of the lower water distribution body is connected to the hot and cold mixing body, and the other end is connected to the shower head. During construction, the protective cover is detachably fitted onto the junction box cover and seals the main body components within the space between the junction box base, the junction box cover, and the protective cover. After construction, the panel component is installed on the junction box cover, and the handle is detachably connected to the switch valve component. The upper water distribution body and the lower water distribution body are structurally symmetrical, and both water distribution bodies are equipped with button valve cores for controlling the opening and closing of the water distribution bodies. The opening and closing of the two button valve cores are controlled independently and do not interfere with each other.

[0005] This switch valve allows for independent control of two separate main units. The two button valve cores can be opened and closed simultaneously, allowing users to enjoy both overhead shower and handheld shower functions at the same time, making it convenient for two people to shower. The protective cover prevents debris from entering during decoration and installation. After construction is completed, the protective cover can be removed, and the panel components can be installed on the junction box cover.

[0006] The hot and cold mixing body further includes a check valve, a flat gasket, and a valve core pad with several holes; the switching valve component includes a hot and cold temperature control valve core, a valve core fitting, and a first pressure cap; the hot and cold mixing body is provided with a positioning cylinder, and the hot and cold temperature control valve core is sleeved inside the hot and cold mixing body; the valve core pad is locked inside the hot and cold mixing body and clamped between the positioning cylinder and the front end of the hot and cold temperature control valve core, and the first pressure cap is sleeved on the outer periphery of the rear end of the hot and cold temperature control valve core and seals the end of the hot and cold mixing body; there are two of each of the check valve, positioning cylinder, and valve core fitting; one end of the positioning cylinder is connected to the cold water inlet, and the other end is connected to the hot and cold temperature control valve core through the holes in the valve core pad. The cold water inlet of the switch valve core is connected; one end of the other positioning cylinder is connected to the hot water inlet, and the other end is connected to the hot water inlet of the inner cavity of the hot and cold temperature control switch valve core through the hole of the valve core pad; the check valve is installed in the positioning cylinder, and the check valve supplies water to the inner cavity of the hot and cold temperature control switch valve core on one side; the valve core rubber part is installed in the positioning cylinder and clamped between the check valve and the valve core pad; the rear end of the hot and cold temperature control switch valve core is provided with a connecting post, and the valve core rubber part is sleeved and fixed on the connecting post; the handle is detachably connected to the valve core rubber part, and the hot and cold temperature control switch valve core adjusts the opening and closing degree of the hot water inlet and cold water inlet of the inner cavity of the hot and cold temperature control switch valve core by rotating the handle. The hot and cold temperature control switch valve core adjusts the flow ratio by adjusting the opening and closing degree of the cold water inlet and hot water inlet of its inner cavity, thereby obtaining a suitable water temperature. The check valve is a one-way water inlet, and the hot and cold temperature control switch valve core realizes the flow and shut-off of water.

[0007] The hot and cold mixing body also includes a first screw, through which the valve core pad is locked within the hot and cold mixing body; the switch valve component also includes a second screw and a decorative sleeve, with the valve core rubber component locked to the connecting post by the second screw; the top of the hot and cold temperature control switch valve core is provided with a first water outlet communicating with the upper water distribution main chamber and a second water outlet communicating with the lower water distribution main chamber; the decorative sleeve is fitted around the outer periphery of the rear end of the hot and cold temperature control switch valve core, and the sleeve of the handle is detachably fitted onto the end of the decorative sleeve, with the valve core rubber component located inside the decorative sleeve.

[0008] The lower water distribution main structure includes a sealing joint, a second pressure cap, and a third screw; the button valve core is installed in the cavity of the lower water distribution main structure, the second pressure cap is screwed onto the lower water distribution main body, and the outer end of the button valve core passes through the second pressure cap and can slide along it; the water inlet of the lower water distribution main body is connected to the water outlet of the hot and cold mixing main body, and the sealing joint is located in the connection channel between the lower water distribution main body and the hot and cold mixing main body; the water inlet end of the lower water distribution main body and the water outlet end of the hot and cold mixing main body are fixed together by the third screw.

[0009] The sealing joint has an annular groove at both its upper and lower parts. A first O-ring is installed within each annular groove. One first O-ring is located inside the outlet of the hot and cold mixing body and abuts against its inner side, while the other first O-ring is located inside the inlet of the lower water distribution body and abuts against its inner side. This double O-ring configuration ensures the sealing of the connection channel between the water distribution body and the hot and cold mixing body, preventing leakage.

[0010] Both the cold and hot water inlets of the hot and cold mixing body are fitted with rubber sleeves. When connected to an external water pipe, the external water pipe is placed inside the rubber sleeve. The mixing outlets of the upper and lower water distribution bodies are also fitted with rubber sleeves. When connected to the water pipes of a shower head or shower unit, the water pipe is placed inside the rubber sleeve. The rubber sleeves are clamped between the semi-circular holes of the junction box base and the junction box cover. The rubber sleeves provide a sealing and cushioning effect for the connection between the pipe fittings.

[0011] The protective cover is equipped with a level and installation direction markings. The level prevents tilting during installation, and the installation direction markings are to prevent incorrect installation.

[0012] It also includes a button, a decorative cover, a screw sleeve, a spring, and a second O-ring; the panel component has three mounting holes from top to bottom; the screw sleeve is fitted onto the second pressure cap; the decorative cover is fitted into the mounting holes of the panel component; the inner end of the decorative cover is fastened to the inner side of the screw sleeve; the second O-ring is fitted at the fastening point; the outer circumference of the second O-ring abuts against the inner wall of the screw sleeve; the button is fitted into the decorative cover and can slide along it; the inner end of the button is folded outward to form a retaining ring; the spring is fitted onto the outer circumference of the button valve core; one end of the spring abuts against the inner bottom side of the screw sleeve; the other end abuts against the retaining ring of the button; the switch of the button valve core abuts against the inner wall of the button; there are two buttons, one button has a rain mark on the outside, and the other button has a shower mark on the outside.

[0013] The junction box is marked with the wall burial depth.

[0014] The panel component is screwed together with the connector of the hot and cold mixing body using anti-theft screws. The anti-theft screws serve to prevent theft.

[0015] Compared with existing technologies, the advantages of this utility model are as follows: The main body of this switch valve is composed of three parts: the upper and lower water distribution bodies and the middle hot and cold mixing body, which facilitates machine processing and manufacturing and improves the production qualification rate; the upper and lower water distribution bodies are symmetrically structured, so even if they are installed upside down during construction, it will not affect the use; the switch valve is equipped with double check valves to prevent hot and cold water from mixing, prevent sudden changes in temperature, and prevent backflow of water, achieving the effect of immediate water flow upon turning on the tap; the two water distribution button valve cores can be opened or closed simultaneously, allowing users to enjoy both overhead shower and handheld functions at the same time, and facilitating showering for two people; this product can prevent the entire switch valve assembly from being installed crookedly, has an anti-theft function, and is simple and beautiful overall, conforming to modern decoration styles; the main body is inside the wall, not easily affected by dirt and scale, only the panel needs to be cleaned, making it easy to clean and maintain, keeping it clean and hygienic. Attached Figure Description

[0016] Figure 1 This is an exploded view of the structure of an embodiment of the present utility model;

[0017] Figure 2 This is an exploded view of the structure of the panel component and button-related components in an embodiment of this utility model;

[0018] Figure 3 This is an exploded view of the main components of an embodiment of the present utility model;

[0019] Figure 4 This is a left view of an embodiment of the present utility model;

[0020] Figure 5 This is a sectional view taken along the longitudinal direction in the main view of an embodiment of the present invention;

[0021] Figure 6 This is a top view of a cross-sectional view taken along the center of the check valve in the direction of the present invention;

[0022] Figure 7 This is a structural diagram illustrating the construction process of an embodiment of this utility model;

[0023] Figure 8 This is a schematic diagram of the structure after construction of an embodiment of this utility model.

[0024] The following are the meanings of the reference numerals in the diagram: 1. Recessed box base; 2. Recessed box cover; 3. Main body component; 4. Protective cover; 5. Panel component; 6. Handle; 7. Decorative cover; 8. Second O-ring; 9. Spring; 10. Button; 11. Screw sleeve; 12. Decorative sleeve; 13. First pressure cap; 14. Second screw; 15. Valve core rubber component; 16. Temperature control switch valve core; 17. First screw; 18. Valve core gasket; 19. Flat washer. ; 20. Check valve; 21. Second pressure cap; 22. Button valve core; 23. Rubber sleeve; 24. Third screw; 25. Lower water distribution body; 26. First O-ring; 27. Sealing joint; 28. Upper water distribution body; 29. ​​Hot and cold mixing body; 30. Level; 31. Cold water inlet; 32. Hot water inlet; 33. Mixed water outlet; A. Press to turn off water, pop up to turn on water; B. Water inlet route; C. Water outlet route. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0026] Example

[0027] See Figures 1 to 8 This is a concealed switching valve for hot and cold temperature control, comprising a junction box 1, a main body 3, a junction box cover 2, a protective cover 4, a panel component 5, and a handle 6. The junction box cover 2 is a fence-like shell formed by four walls, and is installed together with the junction box base 1. The main body is installed on the junction box base 1 and located inside the junction box cover 2. The main body component 3 includes an upper water distribution body 28, a lower water distribution body 25, and a hot and cold mixing body 29. The hot and cold mixing body 29 is provided with a cold water inlet 31, a hot water inlet 32, and a switching valve component for controlling the opening and closing of the cold water inlet 31 and the hot water inlet 32. One end of the upper water distribution body 28 is connected to the hot and cold mixing body 29. One end of the upper water distribution body 28 is connected to the shower head; the other end of the lower water distribution body 25 is connected to the hot and cold mixing body 29, and the other end is connected to the shower head; during construction, the protective cover 4 is detachably fitted onto the concealed box cover 2 and seals the main body 3 in the space between the concealed box seat 1, the concealed box cover 2 and the protective cover 4; after construction, the panel component 5 is installed on the concealed box cover 2, and the handle 6 is detachably connected to the switch valve component; the upper water distribution body 28 and the lower water distribution body 25 are structurally symmetrical, and both water distribution bodies are equipped with button valve cores 22 for controlling the opening and closing of the water distribution bodies. The opening and closing of the two button valve cores 22 are controlled independently and do not interfere with each other.

[0028] This switch valve allows for independent control of two separate main units. The two button valve cores 22 can be opened and closed simultaneously, allowing users to enjoy both overhead shower and handheld functions at the same time, making it convenient for two people to shower. The protective cover 4 prevents debris from entering during decoration and installation. After construction is completed, the protective cover 4 can be removed, and the panel component 5 can be installed on the junction box cover 2.

[0029] The hot and cold mixing body 29 also includes a check valve 20, a flat gasket 19, and a valve core pad 18 with several holes; the switching valve component includes a hot and cold temperature control valve core 16, a valve core rubber part 15, and a first pressure cap 13; the hot and cold mixing body 29 is provided with a positioning cylinder, and the hot and cold temperature control valve core 16 is sleeved inside the hot and cold mixing body 29; the valve core pad 18 is locked inside the hot and cold mixing body 29 and clamped between the positioning cylinder and the front end of the hot and cold temperature control valve core 16, and the first pressure cap 13 is sleeved on the outer periphery of the rear end of the hot and cold temperature control valve core 16 and seals the end of the hot and cold mixing body 29; there are two check valves 20, two positioning cylinders, and two valve core rubber parts 15; one end of one positioning cylinder is connected to the cold water inlet 31, and the other end passes through the hole of the valve core pad 18. One end of the positioning cylinder is connected to the cold water inlet of the inner cavity of the thermostatic switch valve core 16; the other end of the positioning cylinder is connected to the hot water inlet 32 ​​at one end and to the hot water inlet of the inner cavity of the thermostatic switch valve core 16 through the hole of the valve core pad 18; the check valve 20 is installed in the positioning cylinder, and the check valve 20 supplies water to the inner cavity of the thermostatic switch valve core 16 on one side; the valve core rubber part 15 is installed in the positioning cylinder and clamped between the check valve 20 and the valve core pad 18; the rear end of the thermostatic switch valve core 16 is provided with a connecting post, and the valve core rubber part 15 is sleeved and fixed on the connecting post; the handle 6 is detachably connected to the valve core rubber part 15, and the thermostatic switch valve core 16 adjusts the opening degree of the hot water inlet and the cold water inlet of the inner cavity of the thermostatic switch valve core 16 as the handle 6 rotates. The thermostatic switch valve core 16 adjusts the flow ratio by adjusting the opening degree of the cold water inlet and the hot water inlet of its inner cavity, thereby obtaining a suitable water temperature. The check valve 20 is for one-way water inlet, and the hot and cold temperature control switch valve core 16 is used to control the flow of water.

[0030] In this embodiment, both the hot and cold water temperature control valve core 16 and the valve core component 15 are existing mature technologies. The operation of adjusting the opening and closing degree of the hot and cold water inlets within the valve core 16 by rotating the handle 6 is also an existing mature technology; most hot and cold water valves on the market use this method. The valve core 16 contains upper and lower ceramic plates. Rotating the handle 6 adjusts the opening ratio (opening and closing degree) of the two inlets, thereby regulating the flow rate. These are all existing technologies, therefore, no detailed structural analysis is necessary. This valve can also be equipped with a thermostatic element that automatically expands and contracts according to water temperature, pushing the valve core to adjust the hot and cold water ratio and maintain the set temperature.

[0031] The hot and cold mixing body 29 also includes a first screw 17, and the valve core pad 18 is locked inside the hot and cold mixing body 29 by the first screw 17 passing through it; the switch valve component also includes a second screw 14 and a decorative sleeve 12, and the valve core rubber part 15 is locked to the connecting post by the second screw 14; the top of the hot and cold temperature control switch valve core 16 is provided with a first water outlet communicating with the chamber of the upper water distribution body 28 and a second water outlet communicating with the chamber of the lower water distribution body 25; the decorative sleeve 12 is fitted on the outer periphery of the rear end of the hot and cold temperature control switch valve core 16, and the sleeve of the handle 6 is detachably fitted on the end of the decorative sleeve 12, and the valve core rubber part 15 is located inside the decorative sleeve 12.

[0032] The lower water distribution body 25 includes a sealing joint 27, a second pressure cap 21, and a third screw 24. A push-button valve core 22 is installed within the cavity of the lower water distribution body 25. The second pressure cap 21 is screwed onto the lower water distribution body 25, and the outer end of the push-button valve core 22 passes through the second pressure cap 21 and can slide along it. The inlet of the lower water distribution body 25 is connected to the outlet of the hot and cold mixing body 29. The sealing joint 27 is located within the connection channel between the lower water distribution body 25 and the hot and cold mixing body 29. The inlet of the lower water distribution body 25 and the outlet of the hot and cold mixing body 29 are fixed together by the third screw 24. The sealing joint 27 is used to connect and seal the connection channel formed by the inlet of the water distribution body and the outlet of the hot and cold mixing body 29, preventing leakage.

[0033] The sealing joint 27 has an annular groove at both its upper and lower parts. A first O-ring 26 is installed within each annular groove. One first O-ring 26 is located inside the outlet of the hot and cold mixing body 29 and abuts against its inner side, while the other first O-ring 26 is located inside the inlet of the lower water distribution body 25 and abuts against its inner side. This double O-ring configuration ensures the sealing of the connection channel between the water distribution body and the hot and cold mixing body 29, preventing leakage.

[0034] Both the cold water inlet 31 and the hot water inlet 32 ​​of the hot and cold mixing body 29 are fitted with rubber sleeves 23. When connected to an external water pipe, the external water pipe is placed inside the rubber sleeve 23. The mixing outlets of the upper water distribution body 28 and the lower water distribution body 25 are also fitted with rubber sleeves 23. When connected to the water pipes of the shower head or shower unit, the water pipe is placed inside the rubber sleeve 23. The rubber sleeve 23 is clamped between the semi-circular hole of the junction box seat 1 and the semi-circular hole of the junction box cover 2. The rubber sleeve 23 provides a sealing and cushioning effect for the connection between pipe fittings.

[0035] The protective cover 4 is equipped with a level 30 and an installation direction mark. The level 30 is provided to prevent tilting during installation, and the installation direction mark is to prevent incorrect installation.

[0036] It also includes a button 10, a decorative cover 7, a screw sleeve 11, a spring 9, and a second O-ring 8; the panel component 5 has three mounting holes from top to bottom, the screw sleeve 11 is fitted onto the second pressure cover 21, the decorative cover 7 is fitted into the mounting holes of the panel component 5, the inner end of the decorative cover 7 is fastened to the inner side of the screw sleeve 11, and the second O-ring 8 is fitted at the fastening point, with the outer periphery of the second O-ring 8 abutting against the inner wall of the screw sleeve 11; the button 10 is fitted into the decorative cover 7 and can slide along it, the inner end of the button 10 is folded outward to form a retaining ring, the spring 9 is fitted onto the outer periphery of the button valve core 22, one end of which abuts against the inner bottom side of the screw sleeve 11, and the other end of which abuts against the retaining ring of the button 10; the switch of the button valve core 22 abuts against the inner wall of the button 10; there are two buttons 10, one button 10 has a rain mark on the outside, and the other button 10 has a shower mark on the outside.

[0037] The junction box 1 is marked with the wall embedment depth.

[0038] The panel component 5 is screwed together with the connector of the hot and cold mixing body 29 using anti-theft screws. The anti-theft screws serve as a security feature.

[0039] See Figures 4 to 6 A indicates pressing the water shut-off button and popping it up to turn on the water; B indicates the water inlet path; C indicates the water outlet path. The working principle of this embodiment is as follows: cold and hot water enter from the cold inlet 31 and hot inlet 32 ​​at the left and right ends of the hot and cold mixing body 29, respectively, and then enter the hot and cold temperature control valve core 16 through two check valves 20. Rotating the handle 6 (i.e., the handwheel) to the left will increase the temperature of the mixed water, and rotating it to the right will decrease the temperature of the mixed water. The mixed water is controlled by the handle 6 to adjust the flow ratio of the hot and cold temperature control valve core 16 by opening and closing the cold water inlet and hot water inlet in its inner cavity, thereby obtaining a suitable water temperature. The water that reaches the set water temperature enters the upper water distribution body 28 and the lower inner water distribution body. According to the opening status of the button valve core 22 of the two water distribution bodies, as the button valve core 22 is opened, the water at the set temperature flows out from the mixed water outlet 33 and enters the shower or shower head. The button valve core 22 controls the water distribution shower function.

[0040] This switch valve can be fully heated or fully cooled. By turning the handwheel (handle 6) to the left to the valve core limit point, it is fully heated; when turned to the right to the limit point, it is fully cooled. This structural and functional setting is also present in existing products and is common knowledge, so there is no need to elaborate on the specific structure.

[0041] This embodiment also has the following advantages:

[0042] 1) The switch valve components adopt a cast segmented main body (upper water distribution main body 28, lower water distribution main body 25 and hot and cold mixing main body 29), which increases the casting qualification rate to 98%. The casting non-red stamping rapid forming process is adopted, which allows the high temperature liquid to flow slowly according to the fluid dynamics. The internal stress of the material is uniform and there will be no cracking, which makes the service life of each main body longer.

[0043] 2) The main body 3 of the switch valve component is composed of three parts: the upper and lower parts are the water distribution body, and the middle part is the hot and cold mixing body 29, which facilitates machining and manufacturing and improves the production qualification rate.

[0044] 3) The upper water distribution body 28 and the lower water distribution body 25 of this switch valve component are designed to be symmetrical, so even if they are installed in reverse during construction, it will not affect their use.

[0045] 4) All hardware parts of this switch valve are CNC automated machining, with precise control, making assembly convenient and simple.

[0046] 5) The switch valve component is equipped with a double check valve 20 to prevent cold and hot water from mixing and to prevent sudden changes in temperature; with the check valve 20, backflow of water is also prevented, so that water can be dispensed immediately when the valve is turned on.

[0047] 6) The switching valve component is equipped with a default-open temperature control valve core (i.e., hot and cold temperature control switching valve core 16, with valve core rubber part 15 on the valve core), which only requires temperature adjustment and is convenient to use.

[0048] 7) All the accessories involved in the switch valve component, including the two inlet threads and two outlet threads, are internal threads to prevent damage and facilitate the change of thread specifications (such as G1 / 2, NPSM1 / 2, NPT1 / 2, etc.) to meet the needs of different countries.

[0049] 8) The two water-dividing button valve cores 22 can be opened and closed simultaneously, allowing users to enjoy both the overhead shower and handheld shower functions at the same time, and also making it convenient for two people to shower.

[0050] 9) Panel component 5 can be freely interchanged in appearance, and the same product can meet the needs of different customers who purchase externally.

[0051] 10) Correction of processing errors: Since the main body does not directly extend the sleeve accessories to the panel, the design of the empty space around the button switch allows the panel component 5 to be directly connected with an error of 1.5mm on one side. In other words, the deviation of 1.5mm on one side of the center dimension of the three holes of the panel component 5 has no effect. The non-vertical processing of the main body of the key water distribution does not affect the installation, which greatly corrects the error and improves the finished product qualification rate.

[0052] 11) Comparison before and after construction: During and after construction, it can be seen that this concealed product is equipped with a concealed box (concealed box base 1, concealed box cover 2 and protective cover 4), which provides better protection for the product and prevents dirt such as cement from entering during construction; it is equipped with wall embedment depth markings, and the protective cover 4 is designed with an angle to facilitate the construction personnel to remove and reinstall the panel component 5, making it flat and beautiful.

[0053] 12) A level 30 is provided on the protective cover 4, which can effectively prevent the entire switch valve component from being installed crookedly.

[0054] 13) Panel component 5 is equipped with anti-theft screws, which can serve as a simple anti-theft measure.

[0055] 14) The valve box components are aesthetically pleasing and modern: the overall design is simpler and cleaner, in line with modern decoration style.

[0056] 15) Easy to clean and maintain: The main body is inside the wall and is not easily affected by dirt and scale. Only the panel needs to be cleaned. It is easy to clean and maintain, keeping it clean and hygienic.

[0057] The above detailed description is a specific description of a feasible embodiment of the present utility model. This embodiment is not intended to limit the patent scope of the present utility model. All equivalent implementations or modifications that do not depart from the present utility model should be included in the patent scope of this case.

Claims

1. A concealed on / off valve for adjusting temperature, characterized in that: The system includes a junction box base, a main body component, a junction box cover, a protective cover, a panel component, and a handle. The junction box cover is a fence-like shell formed by four walls, and the cover is installed together with the junction box base. The main body component is installed on the junction box base and located inside the junction box cover. The main body component includes an upper water distribution body, a lower water distribution body, and a hot and cold water mixing body. The hot and cold water mixing body is provided with a cold water inlet, a hot water inlet, and a switch valve component for controlling the opening and closing of the cold and hot water inlets. One end of the upper water distribution body is connected to the hot and cold water mixing body, and the other end is connected to the shower unit. The lower water distribution body is connected at one end to the hot and cold mixing body and at the other end to the shower head. During construction, the protective cover is detachably fitted onto the junction box cover and seals the main body components within the space between the junction box base, the junction box cover, and the protective cover. After construction, the panel component is installed on the junction box cover, and the handle is detachably connected to the switch valve component. The upper water distribution body and the lower water distribution body are structurally symmetrical, and both water distribution bodies are equipped with button valve cores for controlling the opening and closing of the water distribution bodies. The opening and closing of the two button valve cores are controlled independently and do not interfere with each other.

2. The concealed switching valve for hot and cold temperature control according to claim 1, characterized in that: The hot and cold mixing body further includes a check valve, a flat gasket, and a valve core pad with several holes; the switching valve component includes a hot and cold temperature control valve core, a valve core fitting, and a first pressure cap; the hot and cold mixing body is provided with a positioning cylinder, and the hot and cold temperature control valve core is sleeved inside the hot and cold mixing body; the valve core pad is locked inside the hot and cold mixing body and clamped between the positioning cylinder and the front end of the hot and cold temperature control valve core, and the first pressure cap is sleeved on the outer periphery of the rear end of the hot and cold temperature control valve core and seals the end of the hot and cold mixing body; there are two of each of the check valve, positioning cylinder, and valve core fitting; one end of the positioning cylinder is connected to the cold water inlet, and the other end is connected to the hot and cold temperature control valve core through the holes in the valve core pad. The cold water inlet of the switch valve core cavity is connected; one end of the other positioning cylinder is connected to the hot water inlet, and the other end is connected to the hot water inlet of the cold and hot temperature control switch valve core cavity through the hole of the valve core pad; the check valve is installed in the positioning cylinder, and the check valve supplies water to the cold and hot temperature control switch valve core cavity on one side; the valve core rubber part is installed in the positioning cylinder and clamped between the check valve and the valve core pad; the rear end of the cold and hot temperature control switch valve core is provided with a connecting post, and the valve core rubber part is sleeved and fixed on the connecting post; the handle is detachably connected to the valve core rubber part, and the cold and hot temperature control switch valve core adjusts the opening degree of the hot water inlet and cold water inlet of the cold and hot temperature control switch valve core cavity by rotating the handle.

3. The concealed switching valve for hot and cold temperature control according to claim 2, characterized in that: The hot and cold mixing body also includes a first screw, through which the valve core pad is locked within the hot and cold mixing body; the switch valve component also includes a second screw and a decorative sleeve, with the valve core rubber component locked to the connecting post by the second screw; the top of the hot and cold temperature control switch valve core is provided with a first water outlet communicating with the upper water distribution main chamber and a second water outlet communicating with the lower water distribution main chamber; the decorative sleeve is fitted around the outer periphery of the rear end of the hot and cold temperature control switch valve core, and the sleeve of the handle is detachably fitted onto the end of the decorative sleeve, with the valve core rubber component located inside the decorative sleeve.

4. The concealed switching valve for hot and cold temperature control according to claim 1, characterized in that: The lower water distribution main structure includes a sealing joint, a second pressure cap, and a third screw; the button valve core is installed in the cavity of the lower water distribution main structure, the second pressure cap is screwed onto the lower water distribution main body, and the outer end of the button valve core passes through the second pressure cap and can slide along it; The inlet of the lower water distribution body is connected to the outlet of the hot and cold mixing body, and the sealing joint is located in the connection channel between the lower water distribution body and the hot and cold mixing body; the inlet end of the lower water distribution body and the outlet end of the hot and cold mixing body are fixed together by the third screw.

5. The concealed switching valve for hot and cold temperature control according to claim 4, characterized in that: Both the upper and lower parts of the sealing joint are provided with an annular groove, and a first O-ring is installed in the annular groove. One first O-ring is located in the outlet of the hot and cold mixing body and abuts against its inner side, and the other first O-ring is located in the inlet of the lower water distribution body and abuts against its inner side.

6. The concealed switching valve for hot and cold temperature control according to claim 1, characterized in that: Both the cold and hot water inlets of the hot and cold mixing body are fitted with rubber sleeves. When connected to an external water pipe, the external water pipe is placed inside the rubber sleeve. Both the mixing outlets of the upper and lower water distribution bodies are fitted with rubber sleeves. When connected to the water pipes of the shower head or shower unit, the water pipe is placed inside the rubber sleeve. The rubber sleeve is clamped between the semi-circular hole of the junction box base and the semi-circular hole of the junction box cover.

7. The concealed switching valve for hot and cold temperature control according to claim 1, characterized in that: The protective cover is equipped with a level and installation direction markings.

8. The concealed switching valve for hot and cold temperature control according to claim 4, characterized in that: It also includes a button, a decorative cover, a screw sleeve, a spring, and a second O-ring; the panel component has three mounting holes from top to bottom; the screw sleeve is fitted onto the second pressure cap; the decorative cover is fitted into the mounting holes of the panel component; the inner end of the decorative cover is fastened to the inner side of the screw sleeve; the second O-ring is fitted at the fastening point; the outer circumference of the second O-ring abuts against the inner wall of the screw sleeve; the button is fitted into the decorative cover and can slide along it; the inner end of the button is folded outward to form a retaining ring; the spring is fitted onto the outer circumference of the button valve core; one end of the spring abuts against the inner bottom side of the screw sleeve; the other end abuts against the retaining ring of the button; the switch of the button valve core abuts against the inner wall of the button; there are two buttons, one button has a rain mark on the outside, and the other button has a shower mark on the outside.

9. The concealed switching valve for hot and cold temperature control according to claim 1, characterized in that: The junction box is marked with the wall burial depth.

10. The concealed switching valve for hot and cold temperature control according to claim 1, characterized in that: The panel component is screwed together with the connector of the hot and cold mixing body by anti-theft screws.

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