WO2018072320A1

WO2018072320A1 - Control valve and water heater

Info

Publication number: WO2018072320A1
Application number: PCT/CN2016/112530
Authority: WO
Inventors: 孙殿; 张庆堂; 王建军; 尹忠
Original assignee: 芜湖美的厨卫电器制造有限公司
Priority date: 2016-10-20
Filing date: 2016-12-28
Publication date: 2018-04-26

Abstract

A control valve (10), comprising a shell (11) provided with a water inlet (A) and a water outlet (B), and a water drain assembly (13) which is partially received in the shell (11). The water drain assembly (13) comprises a first valve block (131), a second valve block (133), and a through knob (135) which are sequentially arranged from a water inlet (A) to a water outlet (B) and provided right facing one another. The first valve block (131) is provided with two first through holes (1311), the second valve block (133) is provided with two second through holes (1331), and the through knob (135) is connected to the second valve block (133) and rotates to drive the second valve block (133) to rotate, so that the two second through holes (1331) may be enabled to be communicated with the two first through holes (1311) correspondingly, so as to form two circulating channels, or the second through holes are disconnected from the first through holes. A water heater (100), comprising the control valve (10), which is able to balance air pressure and guarantee smooth water drainage.

Description

Control valve and water heater

Technical field

The invention relates to a control valve and a water heater having the same.

Background technique

Most of the existing control valve passages have only one passage or through hole, which is only used to realize drainage or water inlet. When the water pressure is too large or there is dirt such as dirt in the water flow, the circulation passage of the control valve is easily blocked. The control valve does not smoothly perform the function of draining or water ingress.

Summary of the invention

The main object of the present invention is to provide a control valve and a water heater, which aim to solve the disadvantage that the water flow can not be discharged when the single-channel water pressure imbalance of the control valve is unbalanced.

To achieve the above object, the control valve of the present invention comprises an outer casing having a water inlet and a water outlet and a drainage assembly partially received in the outer casing, the drainage assembly including the water inlet from the water inlet to the water outlet. The first valve piece, the second valve piece and the through-knob are disposed in the same direction, the first valve piece is provided with two first through holes, and the second valve piece is provided with two second through holes, a through-knob is connected to the second valve piece, and the second valve piece is rotated by the rotation of the through-knob to connect the two second through holes to the two first through holes to form two flows. The channel or the misalignment is broken.

Preferably, the first through holes are symmetrically distributed with respect to the center of rotation, and the second through holes are symmetrically distributed with respect to the center of rotation. The area of the first through holes is smaller than the first valve piece. One quarter of the area, the area of the second through hole is less than a quarter of the area of the second valve sheet, and the first valve piece is the same size as the second valve piece.

Preferably, the first through hole and the second through hole are fan-shaped through holes.

Preferably, the through knob is provided with a plurality of protrusions/grooves on one side of the second valve piece, and the second valve piece is provided with a plurality of grooves/protrusions matching the protrusions/grooves. The protrusion is engaged with the groove.

Preferably, the outer periphery of the first valve piece is provided with a fixing block/fixing groove, and the fixing block/fixing groove is fixedly connected with the fixing groove/fixing block of the outer casing.

Preferably, the through knob is provided with a through handle on a side of the second valve piece, and one end of the through handle is connected to the through knob, and the other end is exposed to the outer casing.

Preferably, a sealing ring is further disposed between the outer casing and the first valve piece, and the two sides of the sealing ring abut against the outer casing and the first valve piece, respectively.

Preferably, the outer casing includes a valve body and a valve cover, the valve body includes a first side wall and a step connecting the first side wall and the water inlet, the valve cover including a second side wall and a connection The second side wall and the bottom wall of the water outlet, the step portion abuts the first valve piece, the bottom wall abuts the through knob, the first side wall and the The second side wall is threaded.

Preferably, the first sidewall faces the side of the valve cover with two limiting blocks distributed symmetrically with respect to the center of rotation, and the outer circumference of the through knob is symmetrically distributed according to the center of rotation and respectively Two stops located between the two limit blocks.

The invention also provides a water heater comprising a sewage interface and the above-mentioned control valve, wherein the water inlet of the control valve is connected to the sewage interface.

In the technical solution of the present invention, the first valve piece of the control valve is provided with two first through holes, and the second valve piece is provided with two of the second through holes, and the through-knob is Rotation can drive the rotation of the second valve piece. When the two first through holes are in parallel communication with the two second through holes, the control valve also includes two channels, and the two One channel in the channel is used to achieve water circulation, and the other channel can realize the circulation of air, thereby preventing the valve from being blocked due to air pressure.

DRAWINGS

In order to more clearly illustrate the present embodiment or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are merely Some of the embodiments of the present invention can be obtained by those skilled in the art from the structure shown in the drawings without any inventive effort.

1 is a schematic perspective view of a control valve of the present invention;

2 is a schematic exploded view of the control valve of the present invention;

3 is a schematic exploded view of the water heater of the present invention.

Description of the reference numerals:

标号Label	名称name	标号Label	名称name
100100	热水器Water heater	1010	控制阀Control valve
3030	排污接口Sewage interface	5050	内胆Liner
1111	外壳shell	111111	阀体Valve body
AA	进水口water intake	11111111	第一侧壁First side wall
11131113	台阶部Step	11151115	限位块Limit block
113113	阀盖cap	BB	出水口Outlet
11311131	第二侧壁Second side wall	11331133	底壁Bottom wall
1313	排水组件Drainage component	131131	第一阀片First valve
13111311	第一通孔First through hole	13131313	固定块Fixed block
133133	第二阀片Second valve	13311331	第二通孔Second through hole
13331333	凹槽Groove	135135	贯通旋钮Through knob
13511351	凸起Bulge	13531353	把手handle
13551355	挡块Stoppers	137137	密封圈Seal ring

The implementation, functional features, and advantages of the present invention will be further described in conjunction with the embodiments.

detailed description

The technical solutions in the present embodiment will be clearly and completely described in the following with reference to the drawings in the embodiments. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

It should be noted that all directional indications (such as up, down, left, right, front, back, ...) in this embodiment are only used to explain the relative relationship between the components in a certain posture (as shown in the drawing). The positional relationship, the motion situation, and the like, if the specific posture changes, the directional indication also changes accordingly.

In addition, the descriptions of "first", "second", and the like in the present invention are used for the purpose of description only, and are not to be construed as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may include one feature, either explicitly or implicitly. In the description of the present invention, the meaning of "a plurality" is two, for example two, three, etc., unless specifically defined otherwise.

In the present invention, the terms "connected", "fixed" and the like should be understood broadly, unless otherwise clearly defined and limited. For example, "fixed" may be a fixed connection, or may be a detachable connection, or may be integrated; It may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be an internal connection of two elements or an interaction relationship of two elements unless explicitly defined otherwise. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.

In addition, the technical solutions between the various embodiments of the present invention may be combined with each other, but must be based on the realization of those skilled in the art, and the combination of technical solutions should be considered when the combination of technical solutions is contradictory or impossible to implement. It does not exist and is not within the scope of protection required by the present invention.

The invention proposes a control valve.

1 and 2, wherein FIG. 1 is a schematic perspective view of a control valve of the present invention; and FIG. 2 is a schematic exploded view of the control valve of the present invention. The control valve 10 includes a housing 11 and a drain assembly 13; the drain assembly 13 is partially received in the housing 11. The outer casing 11 includes a water inlet port A and a water outlet port B. The drain assembly 13 includes a first valve piece 131, a second valve piece 133, and a through-hole disposed in the direction from the water inlet A to the water outlet B. The first valve plate 131 is provided with two first through holes 1311, the second valve piece 133 is provided with two second through holes 1331, and the through knob 135 and the second valve piece 133 are opened. Connecting, rotating the second valve piece 133 by the rotation of the through knob 135, so that the two second through holes 1331 are in aligning with the two first through holes 1311 to form two flow passages or misalignment open.

In the technical solution of the present invention, both the water inlet A and the water outlet B of the outer casing 11 press the first valve piece 131 and the through knob 135 to abut the second valve piece 133, and two The passage is electrically connected to the through knob 135, so that the flow of water does not generate a flow direction other than the passage when passing through the drainage assembly 13, and the rotation of the through knob 135 is driven to drive the second valve. The 133 rotation can function to regulate the flow of the passage.

The second valve piece 133 is in close contact with the first valve piece 131 toward a side of the first valve piece 131 and forms a frictional connection, and the second valve piece 133 faces away from the first valve piece 131. One side is connected to the through knob 135, and the through knob 135 is rotated to rotate the second valve piece 133 to generate friction with the first valve piece 131.

In this embodiment, the number of the channels is two, which is intended to solve the problem that the air pressure in the sealed space is insufficient and the water flow cannot be discharged due to the water only when the sealed space is drained. In the solution, when the sealed space is drained, one channel is a water flow channel for normal drainage, and the other channel is a gas flow channel for balancing air pressure. In the prior art, when there is only one channel for realizing drainage or water inlet, the air pressure of the drainage is unbalanced, the external air pressure is too large, and the water flow is not discharged out of the channel. In this embodiment, an air flow channel is added for balancing the air pressure. , to achieve a smooth drainage effect.

The materials of the first valve piece 131 and the second valve piece 133 should be made of a material that is resistant to abrasion and rust. In this embodiment, the first valve piece 131 and the second valve piece 133 are processed into a ceramic valve piece by using a ceramic material. Of course, the present invention is not limited to the materials of the first valve piece 131 and the second valve piece 133 described above.

Preferably, the first through holes 1311 are symmetrically distributed with respect to the center of rotation, and the second through holes 1331 are symmetrically distributed with respect to the center of rotation. The area of the first through holes 1311 is smaller than the first One quarter of the area of a valve piece 131, the area of the second through hole 1331 is smaller than a quarter of the area of the second valve piece 133, and the first valve piece 131 and the second valve piece The size of 133 is the same.

In the embodiment, the control valve 10 has an annular structure, and the first valve piece 131 and the second valve piece 133 are two circular valve plates of the same area and coaxially rotating. The center of rotation of the first valve piece 131 is the center of the first valve piece 131, and the center of rotation of the second valve piece 133 is the center of the second valve piece 133. The central symmetric distribution with respect to the center of rotation ensures that the two channels can be simultaneously turned on, and the two first through holes 1311 and the two second through holes 1331 can be rotated along with the through knob 135. Gradually expanding to adjust the flow rate of the two channels.

When the two passages are opened, by rotating the second through hole 1331 to a position completely overlapping with the first through hole 1311, the flow rate of the two passages is maximum at this time; when the two passages are closed, The second through hole 1331 may be rotated by 90 degrees.

The larger the space of the passage, the larger the volume of impurities in the discharged sewage, and the higher the ability to discharge impurities in the sewage.

Preferably, the first through hole 1311 and the second through hole 1331 are fan-shaped through holes.

On the basis of the previous embodiment, the first through hole 311 and the second through hole 331 are designed as fan-shaped through holes, so that the first through hole 311 can be ensured while the two channels are closed tightly. The passage cross-sectional area formed by the through hole of the second through hole 331 is maximized, and the ability to discharge impurities in the sewage is improved.

Preferably, the through knob 135 is provided with a plurality of protrusions 1351 toward the side of the second valve piece 133, and the second valve piece 133 is provided with a plurality of grooves 1333 matching the protrusions 1351. The protrusion 1351 is engaged with the groove 1333; or the through knob 135 is provided with a plurality of grooves toward the side of the second valve piece 133, and the second valve piece 133 is provided with a plurality of A groove-matching projection that engages the groove.

In the embodiment, the protrusion 1351 is disposed on the through knob 135 , and the groove 1333 is disposed in the second valve piece 133 . When the through knob 135 is rotated, the protrusion 1351 presses the inner wall of one side of the groove 1333 to drive the second valve piece 133 to rotate together with the through knob 135, thereby making the second through hole 1331 and the first through hole 1311 are gradually changed from the alignment to the dislocation, and function to adjust the flow rate of the two channels.

Preferably, the first valve piece 131 is provided with a fixing block 1313 on the outer circumference thereof, and the fixing block 1313 is fixedly connected with a fixing groove (not shown) of the outer casing 11; or the outer periphery of the first valve piece 131 is fixed. a slot that is fixedly coupled to the fixing block of the outer casing 11.

In this embodiment, the fixing block 1313 is disposed on the first valve piece 131, and the fixing groove is disposed in the outer casing 11. If the first valve piece 131 is rotated by the second valve piece 133, if the through knob 135 is restrained or locked, the second valve piece 135 may be closed when the two channels are closed. The case where the channel is opened affects the normal use of the control valve 10.

The fixing block 1313 can be connected to the outer casing 11 in abutment, engagement, integral molding, or the like, and the number is not limited, and is used to prevent the first valve that is frictionally driven when the second valve piece 133 rotates. The sheet 131 produces a rotation. The manner in which the snap connection is used in this embodiment is adopted.

Preferably, the through knob 135 is provided on the side of the second valve piece 133 with a through handle 1353. One end of the through handle 1353 is connected to the through knob 135, and the other end is exposed to the outer casing 11.

The through knob 135 is housed inside the outer casing 11, and the through knob 135 needs to be rotated manually or by means of a tool. In this embodiment, a through handle 1353 exposed from the outer casing 11 is disposed on a side of the through knob 135 facing away from the second valve piece 133, and the user rotates the through knob by rotating the through handle 1353. 135 thereby adjusting the flow rate of the two channels. The passage is located in the through handle 1353, and the water flows out from the through handle 1353. In this embodiment, the through handle 1353 is a ring gear.

Preferably, a sealing ring 137 is further disposed between the outer casing 11 and the first valve piece 131, and the two sides of the sealing ring 137 abut against the outer casing 11 and the first valve piece 131, respectively.

The sealing ring 137 and the through knob 135 are pressed by the outer casing 11 so that the two sides of the sealing ring 137 abut against the outer casing 11 and the first valve piece 131 respectively, thereby achieving a good sealing effect. . And because the sealing ring 137 is a soft material, damage caused by hard contact between the outer casing 11 and the first valve piece 131 is avoided.

Preferably, the outer casing 11 includes a valve body 111 and a valve cover 113, and the valve body 111 includes a first side wall 1111 and a step portion 1113 connecting the first side wall 1111 and the water inlet A, the valve The cover 113 includes a second side wall 1131 and a bottom wall 1133 connecting the second side wall 1131 and the water outlet B. The step portion 1113 abuts the first valve piece 131, and the bottom wall 1133 is The through knob 135 abuts, and the first sidewall 1111 is screwed to the second sidewall 1131.

The drain assembly 13 is housed in the outer casing 11 and is difficult to manufacture the control valve 10. Therefore, the outer casing 11 is divided into a valve body 111 and a valve cover 113, and after the drain assembly 13 is installed in the valve body 111, the valve cover 113 is screwed to the valve body 111, and The through knob 135 is abutted to stabilize the drain assembly 13 .

Preferably, one side of the first side wall 1111 facing the first valve piece 131 is provided with two limiting blocks 1115 symmetrically distributed with respect to the center of rotation, and the outer circumference of the through knob 135 is provided according to the center of rotation Two stops 1355 are symmetrically distributed in the center and are respectively located between the two limit blocks 1115.

After the first valve piece 131 is fixed, the two locking members 1355 and the two limiting blocks 1115 cooperate to define a rotation angle of the through knob 135, that is, a rotation angle of the second valve piece 133. Thereby, the positional relationship between the first through hole 1311 and the second through hole 1331 is limited, which facilitates the user to adjust the flow rate of the two channels.

The invention also provides a water heater having the above control valve.

Please refer to FIG. 3 again, which is a schematic exploded view of the water heater of the present invention. The water heater 100 includes a control valve 10, a drain interface 30, and a liner 50. The control valve 10 is coupled to the drain interface 30 to discharge sewage within the bladder 50.

The drain interface 30 is in communication with the inner tank 50 of the water heater 100. When the user needs to exclude the sewage in the inner tank 50, the through knob 135 is rotated to open the two passages connecting the inner liner 50 and the outside. Thereby, the sewage in the inner tank 50 can be discharged to the outside.

The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalent structural transformations made by the present specification and the drawings are directly or indirectly utilized in the concept of the present invention. Other related technical fields are included in the scope of patent protection of the present invention.

Claims

A control valve, comprising: an outer casing having a water inlet and a water outlet; and a drainage assembly partially received in the outer casing, wherein the drainage assembly comprises a front side facing from the water inlet to the water outlet a first valve piece, a second valve piece and a through-knob, the first valve piece is provided with two first through holes, the second valve piece is provided with two second through holes, and the through-knob is The second valve plate is connected, and the second valve plate is rotated by the rotation of the through-knob to connect the two second through holes to the two first through holes to form two flow passages or dislocations .
The control valve according to claim 1, wherein the first through holes are symmetrically distributed with respect to the center of rotation, and the second through holes are symmetrically distributed with respect to the center of rotation, the first The area of the through hole is smaller than a quarter of the area of the first valve piece, the area of the second through hole is smaller than a quarter of the area of the second valve piece, and the first valve piece and the first valve piece The second valve is the same size.
The control valve according to claim 2, wherein said first through hole and said second through hole are fan-shaped through holes.
The control valve according to claim 1, wherein the through knob is provided with a plurality of protrusions/grooves on one side of the second valve piece, and the second valve piece is provided with a plurality of protrusions / Groove-matched groove/protrusion that engages the groove.
The control valve according to claim 1, wherein the outer periphery of the first valve piece is provided with a fixing block/fixing groove, and the fixing block/fixing groove is fixedly connected to the fixing groove/fixing block of the outer casing.
The control valve according to claim 1, wherein the through knob is provided with a through handle on a side of the second valve piece, the through handle is connected to the through knob at one end, and the other end is exposed to the shell.
The control valve according to claim 1, wherein a seal ring is further disposed between the outer casing and the first valve piece, and the two sides of the seal ring abut the outer casing and the first valve piece, respectively. .
The control valve according to claim 1, wherein said outer casing comprises a valve body and a valve cover, said valve body comprising a first side wall and a step portion connecting said first side wall and said water inlet, The valve cover includes a second side wall and a bottom wall connecting the second side wall and the water outlet, the step portion abutting the first valve piece, and the bottom wall and the through knob are offset The first side wall and the second side wall are screwed together.
The control valve according to claim 8, wherein one side of the first side wall facing the valve cover is provided with two limiting blocks distributed symmetrically with respect to the center of rotation, and the through knob is peripherally There are two stops arranged symmetrically according to the center of rotation and respectively located between the two limit blocks.
A water heater, comprising: a sewage interface and the control valve according to claim 1, wherein a water inlet of the control valve is connected to the sewage interface.
A water heater, comprising: a sewage interface and the control valve according to claim 2, wherein a water inlet of the control valve is connected to the sewage interface.
A water heater characterized by comprising a sewage interface and a control valve according to claim 3, wherein a water inlet of the control valve is connected to the sewage interface.
A water heater characterized by comprising a sewage interface and a control valve according to claim 4, wherein a water inlet of the control valve is connected to the sewage interface.
A water heater characterized by comprising a sewage interface and a control valve according to claim 5, wherein a water inlet of the control valve is connected to the sewage interface.
A water heater characterized by comprising a sewage interface and a control valve according to claim 6, wherein a water inlet of the control valve is connected to the sewage interface.
A water heater characterized by comprising a sewage interface and a control valve according to claim 7, wherein a water inlet of the control valve is connected to the sewage interface.
A water heater characterized by comprising a sewage interface and a control valve according to claim 8, wherein a water inlet of the control valve is connected to the sewage interface.
A water heater characterized by comprising a sewage interface and a control valve according to claim 9, wherein a water inlet of the control valve is connected to the sewage interface.