Electric anti-scalding diverter valve and anti-scalding instant electric water heater

Abstract

The electric anti-scalding diverter valve comprises a motor, a fixing seat, a valve shell, a valve body, a valve element, a movable ceramic piece, a static ceramic piece and a base, the valve shell comprises a valve cavity with an upper opening, a water inlet pipe, a water outlet pipe and a diverter pipe, the valve element is arranged in the valve body, and a valve rod, a valve rod channel, an element body and a valve element cavity are in running fit and sealed. The driving part extends out of the valve body; the movable ceramic piece is attached to the valve element body, the pin plate is inserted into the pin groove, the static ceramic piece is arranged on the base and inserted into the valve element cavity, and the flange is matched with the lower end of the valve body for stopping. The valve body is arranged in the valve cavity, and the water inlet hole and the water outlet hole correspond to the water inlet pipe and the water outlet pipe respectively; the fixing base is fixed to the upper end of the valve shell, the connector part is inserted into the through hole, and the motor is arranged on the fixing base and connected with the driving part. The valve element and the valve body adopt the structure and cooperate with each other, and the action is fast during flow division and scald prevention; the water inflow adjusting range is large, and the sealing performance of the anti-diversion position is good.

Description

Technical Field

[0001] The invention relates to an instant electric water heater, in particular to a diverter valve. Background Art

[0002] At present, the existing technology, Chinese patent 202022591641.2, an electric diverter valve and an anti-scalding flow regulating electric water heater, which includes a motor, a valve body, a valve core, a valve stem and a valve cover. The valve body includes a valve core cavity with an opening at one end, a water inlet interface, a water outlet interface, a diverter interface and a valve stem channel; the valve core includes a water guide hole and a diverter hole along the diameter line; the valve core and the valve core cavity are rotationally matched and sealed, the valve stem and the valve stem channel are rotationally matched, and the valve cover is screwed with the internal thread at the open end of the valve core cavity; the motor drives the valve stem. An anti-scalding flow regulating electric water heater, including a main control board, an instant electric water heater, a water flow sensor, a cold water inlet connector, a hot water outlet connector, a water inlet temperature sensor and a hot water outlet temperature sensor, and also includes a heating element temperature sensor provided on the electric heating element and the electric diverter valve. There are problems: the flow range of adjusting the flow entering the water heater is small, and the sealing performance of the diverter port is poor. Summary of the invention

[0003] The purpose of the present invention is to provide an electric anti-scalding diverter valve, which has the characteristics of a large water flow adjustment range and good sealing of the diverter port.

[0004] The present invention is implemented as follows: an electric anti-scalding diverter valve, which is special in that it includes a motor, a fixed seat, a valve shell, a valve body, a valve core, a moving ceramic sheet, a static ceramic sheet and a base.

[0005] The fixing seat is provided with a through hole;

[0006] The valve housing includes an upper opening valve cavity, a water inlet pipe, a water outlet pipe and a diverter pipe. The water inlet pipe and the water outlet pipe are on the same diameter line. The diverter pipe is arranged at the water outlet end of the valve cavity and the axes coincide with each other.

[0007] The valve body includes an interface, a valve stem channel, a valve core cavity, a water inlet hole and a water outlet hole.

[0008] The valve core comprises a driving rod, a valve stem, a core body and a pin plate, and the core body is provided with a radial water channel and a pair of axial water holes;

[0009] The moving ceramic plate includes two switch water holes and a pin groove, and the static ceramic plate is provided with two axial water outlet holes;

[0010] The base is provided with an axial water guide cavity and a flange;

[0011] The valve core is arranged in the valve body, the valve stem and the valve stem channel as well as the core body and the valve core cavity are rotatably matched and sealed, and the driving part extends out of the valve body; the moving ceramic piece and the core body are fitted, the pin plate is inserted into the pin groove, the static ceramic piece is arranged on the base and inserted into the valve cavity, and the flange and the lower end of the valve body are matched to stop; the valve body is arranged in the valve cavity, the water inlet hole and the water outlet hole correspond to the water inlet pipe and the water outlet pipe respectively; the fixing seat is fixed to the upper end of the valve shell, the interface part is inserted into the through hole, and the motor is arranged on the fixing seat and connected to the driving part.

[0012] The electric anti-scalding diverter valve is special in that: an axial protrusion is provided on the static ceramic plate;

[0013] An axial positioning groove is arranged in the lower end of the valve core cavity, and the axial protrusion is embedded in the axial positioning groove.

[0014] The electric anti-scalding diverter valve is special in that the interface portion is polygonal and the through hole is polygonal.

[0015] The electric anti-scalding diverter valve is special in that the base is made of rubber material or plastic.

[0016] The electric anti-scalding diverter valve is special in that the switch water hole and the axial water outlet hole are fan-shaped.

[0017] The electric anti-scalding diverter valve is special in that the radial inner ends of the switch water hole and the axial water outlet hole are arc-shaped.

[0018] A scalding-proof instant electric water heater is special in that it comprises the electric scalding-proof diverter valve as described above.

[0019] The present invention discloses an electric anti-scalding diverter valve, in which the valve core and the valve body adopt such a structure and cooperate with each other, and the action is fast when diverting to prevent scalding; the range of adjusting the water inlet volume is large, and the sealing performance of the anti-diverting part is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a cross-sectional view of the present invention.

[0021] Figure 2 It is one of the three-dimensional exploded views of the present invention.

[0022] Figure 3 It is the second of the three-dimensional exploded diagrams of the present invention.

[0023] Figure 4 It is three-dimensional exploded view of the present invention.

[0024] Figure 5 It is a perspective view of the present invention.

[0025] Figure 6 It is one of the working states of the present invention.

[0026] Figure 7 It is the second working state of the present invention.

[0027] Figure 8 It is the third working state of the present invention.

[0028] Fig. 9 It is the fourth working state of the present invention. DETAILED DESCRIPTION

[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] like Figure 1 , Figure 2 As shown, an electric anti-scalding diverter valve includes a motor 1, a fixed seat 2, a valve housing 3, a valve body 4, a valve core 5, a moving ceramic plate 6, a static ceramic plate 7 and a base 8.

[0032] The fixing seat 2 is provided with a through hole 21;

[0033] The valve housing 3 comprises an upper opening valve cavity 31, a water inlet pipe 32, a water outlet pipe 33 and a diverter pipe 34. The water inlet pipe 32 and the water outlet pipe 33 are on a diameter line, and the diverter pipe 34 is arranged at the water outlet end of the valve cavity 31 and the axes thereof coincide with each other. The axes of the valve cavity 31, the water inlet pipe 32, the water outlet pipe 33 and the diverter pipe 34 are on the same plane. When used in an instant electric water heater, the space used is small.

[0034] The valve body 4 includes an interface portion 41, a valve stem channel 42, a valve core cavity 43, a water inlet hole 44 and a water outlet hole 45, and the water inlet hole 44 and the water outlet hole 45 are on the same diameter line;

[0035] The valve core 5 includes a driving rod 51, a valve stem 52, a core body 53 and a pin plate 54. The core body 53 is provided with a radial water channel 531 and a pair of axial water holes 532. The axial water holes 532 are connected to the radial water channel 531. The two radial water holes are on the same diameter line.

[0036] The movable ceramic plate 6 includes two water switch holes 61 and a pin groove 62.

[0037] The static ceramic plate 7 is provided with two axial water outlet holes 71;

[0038] The base 8 is provided with an axial water guide cavity 82 and a flange 81; the axial water guide cavity 82 corresponds to the axial water outlet hole 71;

[0039] The axial water hole 532 , the switch water hole 61 and the axial water outlet hole 71 are opposite in shape, quantity and layout, and two of each are provided.

[0040] The valve core 5 is arranged in the valve body 4, the valve stem 52 and the valve stem channel 42 and the core body 53 and the valve core cavity 43 are rotatably matched and sealed, and the driving rod 51 extends from the interface part 41 of the valve body 4; the moving ceramic plate 6 and the core body 53 are fitted, the pin plate 54 is inserted into the pin groove 62, and the axial water hole 532 and the switch water hole 61 are connected; the static ceramic plate 7 is arranged on the base 8 and inserted into the valve core cavity 43, and the flange 81 cooperates with the lower end of the valve body 4 to stop; the valve body 4 is arranged in the valve cavity 31, and the water inlet hole 44 and the water outlet hole 45 correspond to the water inlet pipe 32 and the water outlet pipe 33 respectively; the fixed seat 2 is fixed to the upper end of the valve shell 3, the interface part 41 is inserted into the through hole 21, and the motor 1 is arranged on the fixed seat 2 and connected to the driving rod 51.

[0041] As a further improvement of the present invention: the static ceramic sheet 7 is provided with an axial protrusion 72;

[0042] An axial positioning groove 431 is provided in the lower end of the valve core cavity 43 , and the axial protrusion 72 is engaged with the axial positioning groove 431 .

[0043] As a further improvement of the present invention: the interface portion 41 is in a polygonal shape, and the through hole 21 is in a polygonal shape.

[0044] The base 8 is made of rubber material or plastic.

[0045] As a further improvement of the present invention: the switch water hole 61 and the axial water outlet hole 71 are fan-shaped; the radial inner ends of the switch water hole 61 and the axial water outlet hole 71 are arc-shaped.

[0046] Figure 6 This is the maximum water flow state of the present invention. The axial water hole 532 and the switch water hole 61 are staggered with the axial water outlet hole 71. The end surface of the moving ceramic plate 6 closes the axial water outlet hole 71, or the upper end surface of the static ceramic plate 7 closes the switch water hole 61 of the moving ceramic plate 6. This sealing method has good sealing performance and effectively prevents water leakage.

[0047] Figure 7This is a view of the present invention in the diversion conduction state, where the axial water hole 532, the switch water hole 61 and the axial water outlet hole 71 are opposite and connected, and water flows out of the diversion pipe 34; that is, the anti-scalding state;

[0048] Figure 8 The diversion channel is closed and the water inlet is regulated. In the process of regulating the water flow, the moving ceramic plate 6 closes the axial water outlet hole 71.

[0049] Fig. 9 It is a view of the water inlet, outlet and diversion water closed status.

[0050] A scalding-proof instant electric water heater is special in that it comprises the electric scalding-proof diverter valve as described above.

[0051] Although the 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 claims and their equivalents.

Claims

1. An electric anti-scalding diverter valve, characterized in that: It includes a motor, a fixed seat, a valve shell, a valve body, a valve core, a moving ceramic plate, a static ceramic plate and a base. The fixing seat is provided with a through hole; The valve housing includes an upper opening valve cavity, a water inlet pipe, a water outlet pipe and a diverter pipe. The water inlet pipe and the water outlet pipe are on the same diameter line. The diverter pipe is arranged at the water outlet end of the valve cavity and the axes coincide with each other. The valve body includes an interface, a valve stem channel, a valve core cavity, a water inlet hole and a water outlet hole. The valve core comprises a driving rod, a valve stem, a core body and a pin plate, and the core body is provided with a radial water channel and a pair of axial water holes; The moving ceramic plate includes two switch water holes and a pin groove, and the static ceramic plate is provided with two axial water outlet holes; The base is provided with an axial water guide cavity and a flange; The valve core is arranged in the valve body, the valve stem and the valve stem channel as well as the core body and the valve core cavity are rotatably matched and sealed, and the driving part extends out of the valve body; the moving ceramic piece and the core body are fitted, the pin plate is inserted into the pin groove, the static ceramic piece is arranged on the base and inserted into the valve core cavity, and the flange and the lower end of the valve body are matched to stop; the valve body is arranged in the valve cavity, the water inlet hole and the water outlet hole correspond to the water inlet pipe and the water outlet pipe respectively; the fixed seat is fixed to the upper end of the valve shell, the interface part is inserted into the through hole, and the motor is arranged on the fixed seat and connected to the driving part.

2. The electric anti-scalding diverter valve according to claim 1, characterized in that: The static ceramic sheet is provided with an axial protrusion; An axial positioning groove is arranged in the lower end of the valve core cavity, and the axial protrusion is embedded in the axial positioning groove.

3. The electric anti-scalding diverter valve according to claim 1, characterized in that: The interface portion is polygonal in shape, and the through hole is polygonal in shape.

4. The electric anti-scalding diverter valve according to claim 1, characterized in that: The base is made of rubber material or plastic.

5. An electric anti-scalding diverter valve according to claim 1, 2, 3 or 4, characterized in that: The switch water hole and the axial water outlet hole are fan-shaped.

6. The electric anti-scalding diverter valve according to claim 1, characterized in that: The radial inner ends of the switch water hole and the axial water outlet hole are arc-shaped.

7. An anti-scalding instant electric water heater, characterized in that: It comprises an electric anti-scalding diverter valve as described in any one of claims 1-6.

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