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] This utility model relates to an instant electric water heater, and more particularly to a diversion valve. Background Technology

[0002] Current technology, specifically Chinese patent 202022591641.2, discloses an electric diversion valve and an anti-scalding flow-adjusting electric water heater. It includes a motor, valve body, valve core, valve stem, and valve cover. The valve body includes a valve core cavity with one open end, an inlet port, an outlet port, a diversion port, and a valve stem channel. The valve core includes a guide hole along its diameter and a diversion hole. The valve core rotatably engages with and seals the valve core cavity; the valve stem rotatably engages with the valve stem channel; and the valve cover is threaded into the open end of the valve core cavity. The motor drives the valve stem. An anti-scalding flow-adjusting electric water heater includes a main control board, an instantaneous electric water heating device, a water flow sensor, a cold water inlet connector, a hot water outlet connector, an inlet water temperature sensor, and a hot water outlet temperature sensor. It also includes a heating element temperature sensor mounted on the heating element and the electric diversion valve. The problems are: the adjustable flow range into the water heater is small, and the sealing performance of the diversion port is poor. Utility Model Content

[0003] The purpose of this utility model is to provide an electric anti-scalding diversion valve, which has the characteristics of a large range of adjustable water flow and good sealing of the diversion port.

[0004] This utility model is implemented as follows: an electric anti-scalding diverter valve, characterized in that it includes a motor, a fixed base, a valve shell, a valve body, a valve core, a moving ceramic plate, a stationary ceramic plate, and a base.

[0005] The mounting base has a through hole;

[0006] The valve body includes an open valve chamber, an inlet pipe, an outlet pipe, and a diversion pipe. The inlet pipe and the outlet pipe are on the same diameter line, and the diversion pipe is located at the outlet end of the valve chamber with their axes coinciding.

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

[0008] The valve core includes a drive rod, a valve stem, a core body, and a pin plate. The core body is provided with a radial water channel and a pair of axial water holes.

[0009] The moving ceramic plate includes two water inlet / outlet holes and a pin groove, while the stationary ceramic plate has two axial water outlet holes.

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

[0011] The valve core is located within the valve body. The valve stem, valve stem channel, core body, and valve core cavity rotate and seal together. The drive unit extends from within the valve body. The moving ceramic disc fits into the core body, and the pin plate is inserted into the pin groove. The stationary ceramic disc is located on the base and inserted into the valve cavity. The flange is fitted to the lower end of the valve body. The valve body is located within the valve cavity, and the inlet and outlet holes correspond to the inlet and outlet pipes, respectively. The fixed seat is fixed to the upper end of the valve shell, and the interface part is inserted into the through hole. The motor is located on the fixed seat and connected to the drive unit.

[0012] The electric anti-scalding diversion valve is characterized in that: the static ceramic plate is provided with an axial protrusion;

[0013] The lower end of the valve core cavity is provided with an axial positioning groove, and the axial protrusion and the axial positioning groove are fitted together.

[0014] The electric anti-scalding diversion valve is characterized in that: the interface part is polygonal and the through hole is polygonal.

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

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

[0017] The electric anti-scalding diversion valve is characterized in that the radial inner end of the switch water hole and the axial water outlet hole is arc-shaped.

[0018] A type of anti-scalding instant electric water heater, characterized by including an electric anti-scalding diversion valve as described above.

[0019] This utility model discloses an electric anti-scalding diversion valve. The valve core and valve body adopt such a structure and work together to divert and prevent scalding. It can quickly act when diverting water to prevent scalding, has a large range of adjustable water inlet volume, and has good sealing performance at the diversion point. Attached Figure Description

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

[0021] Figure 2 This is one of the exploded perspective views of this utility model.

[0022] Figure 3 This is the second exploded perspective view of this utility model.

[0023] Figure 4 This is the third exploded perspective view of this utility model.

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

[0025] Figure 6This is one of the working states of this utility model.

[0026] Figure 7 This is the second working state of this utility model.

[0027] Figure 8 This is the third working state of this utility model.

[0028] Figure 9 This is the fourth working state of this utility model. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

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

[0032] The mounting base 2 is provided with a through hole 21;

[0033] The valve housing 3 includes an upper-opening valve chamber 31, an inlet pipe 32, an outlet pipe 33, and a diverter pipe 34. The inlet pipe 32 and the outlet pipe 33 are on the same diameter line, and the diverter pipe 34 is located at the outlet end of the valve chamber 31 and their axes coincide. The axes of the valve chamber 31, the inlet pipe 32, the outlet pipe 33, and the diverter pipe 34 are on the same plane. When used in an instantaneous electric water heater, the space required for use is small.

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

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

[0036] The moving ceramic plate 6 includes two switch water 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 71;

[0039] The axial water hole 532, the switch water hole 61 and the axial water outlet hole 71 are arranged in a similar way in terms of shape and quantity, and each has two of them.

[0040] The valve core 5 is located inside the valve body 4. The valve stem 52 and valve stem channel 42, as well as the core body 53 and valve core cavity 43, are rotatably fitted and sealed. The drive rod 51 extends from the interface part 41 of the valve body 4. The moving ceramic plate 6 is attached to the core body 53, and the pin plate 54 is inserted into the pin groove 62. The axial water hole 532 and the switch water hole 61 are connected. The stationary ceramic plate 7 is located on the base 8 and inserted into the valve core cavity 43. The flange 81 is fitted and stopped at the lower end of the valve body 4. The valve body 4 is located inside the valve cavity 31. 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. The motor 1 is located on the fixed seat 2 and connected to the drive rod 51.

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

[0042] The lower end of the valve core cavity 43 is provided with an axial positioning groove 431, and the axial protrusion 72 and the axial positioning groove 431 are fitted together.

[0043] As a further improvement of this utility model: the interface part 41 is polygonal, and the through hole 21 is polygonal.

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

[0045] As a further improvement of this utility model: the switch water hole 61 and the axial water outlet hole 71 are fan-shaped; the radial inner end of the switch water hole 61 and the axial water outlet hole 71 is arc-shaped.

[0046] Figure 6This is the maximum water flow state of this utility model. The axial water hole 532 and the switch water hole 61 are staggered from the axial water outlet hole 71. The end face of the moving ceramic plate 6 seals the axial water outlet hole 71, or in other words, the upper end face of the stationary ceramic plate 7 seals the switch water hole 61 of the moving ceramic plate 6. With this sealing method, the sealing performance is good and water leakage is effectively prevented.

[0047] Figure 7 This is a view of the utility model in the diversion and conduction state. The axial water hole 532, the switch water hole 61 and the axial water outlet hole 71 are opposite to each other and connected, and water flows out of the diversion pipe 34; that is, the anti-scalding state.

[0048] Figure 8 This indicates that the diversion channel is closed, and the water inflow is being regulated. During the water flow regulation process, the moving ceramic disc 6 seals the axial outlet hole 71.

[0049] Figure 9 This is a view showing the inlet / outlet water and the closed state of the branch water.

[0050] A type of anti-scalding instant electric water heater, characterized by including an electric anti-scalding diversion valve as described above.

[0051] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An electric anti-scalding diversion valve, characterized in that: Includes motor, mounting base, valve housing, valve body, valve core, moving ceramic disc, stationary ceramic disc, and base. The mounting base has a through hole; The valve body includes an open valve chamber, an inlet pipe, an outlet pipe, and a diversion pipe. The inlet pipe and the outlet pipe are on the same diameter line, and the diversion pipe is located at the outlet end of the valve chamber with their axes coinciding. The valve body includes an interface section, a valve stem channel, a valve core cavity, an inlet port, and an outlet port. The valve core includes a drive rod, a valve stem, a core body, and a pin plate. The core body is provided with a radial water channel and a pair of axial water holes. The moving ceramic plate includes two water inlet / outlet holes and a pin groove, while the stationary ceramic plate has two axial water outlet holes. The base is equipped with an axial water guide cavity and a flange; The valve core is located within the valve body. The valve stem, valve stem channel, core body, and valve core cavity rotate and seal together. The drive unit extends from within the valve body. The moving ceramic disc fits into the core body, and the pin plate is inserted into the pin groove. The stationary ceramic disc is located on the base and inserted into the valve core cavity. The flange is fitted to the lower end of the valve body. The valve body is located within the valve cavity, and the inlet and outlet holes correspond to the inlet and outlet pipes, respectively. The fixed seat is fixed to the upper end of the valve shell, and the interface part is inserted into the through hole. The motor is located on the fixed seat and connected to the drive unit.

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

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

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

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

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

7. A scalding-proof instant electric water heater, characterized in that: Includes the electric anti-scalding diverter valve as described in any one of claims 1-6.

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