CN109578653B - Pollution discharge control valve and water heater - Google Patents
Pollution discharge control valve and water heater Download PDFInfo
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- CN109578653B CN109578653B CN201811390954.2A CN201811390954A CN109578653B CN 109578653 B CN109578653 B CN 109578653B CN 201811390954 A CN201811390954 A CN 201811390954A CN 109578653 B CN109578653 B CN 109578653B
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- valve
- water inlet
- control valve
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 217
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- 239000010865 sewage Substances 0.000 abstract description 22
- 210000000476 body water Anatomy 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 6
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a pollution discharge control valve and a water heater, and relates to the technical field of water heaters. The pollution discharge control valve comprises a valve body, a valve core, a handle and a sealing ring, wherein the valve body is provided with a water inlet and a water outlet; the first end of the valve core is positioned at the water inlet of the valve body, and the second end of the valve core is positioned in the valve body; the first end of the handle is abutted against the second end of the valve core, the second end extends out of the water outlet of the valve body, and a drainage through hole is formed in the second end; the sealing ring is positioned between the first end of the valve core and the water inlet and is fixed at the first end of the valve core or the water inlet of the valve body; when the handle moves along the direction of the water inlet of the valve body in the valve body, a water inlet gap is formed between the sealing ring and the water inlet or between the sealing ring and the first end of the valve core; when the handle moves along the direction of the water outlet of the valve body, the first end of the valve core compresses the sealing ring at the water inlet of the valve body. The invention is used for controlling the opening and closing of the sewage outlet of the water heater.
Description
Technical Field
The invention relates to the technical field of water heaters, in particular to a pollution discharge control valve and a water heater.
Background
After the water storage type water heater product is used for a period of time, dirt impurities such as scale, sediment and the like can be deposited in the water heater, and in order to improve the quality of water, the dirt in the water heater needs to be removed periodically. The water heater is provided with a drain outlet, the drain outlet is connected with a drain nut or a drain control valve, when the water heater needs to be cleaned by draining, the drain nut or the drain control valve is opened to discharge sewage in the water heater, and then the water heater is cleaned.
The user can ask the professional to go to the gate for cleaning, but asking the professional to go to the gate for cleaning increases the use cost of the user and wastes much time. Besides, the user can also select to automatically clean, the existing water heater is generally provided with a drain nut at the drain pipe orifice, or the drain pipe orifice is connected with a ball valve, when dirt and impurities are required to be removed, the drain nut or the ball valve at the drain orifice is opened to drain the sewage in the water heater, and the water heater is further flushed.
However, the prior art has the following problems: the drain outlet of the water heater is provided with the drain nut, when the drain nut is adopted to control drain, the wrench is required to be used for unscrewing the drain nut, the operation is complex, if the temperature of water in the water heater is higher, the water can be scalded carelessly, the water heater can be used for a long time, rust is easy to generate between the drain pipe orifice and the drain nut, the water is not easy to detach, and when the drain nut is screwed down again, the problems of poor sealing and water leakage of the water heater are easy to occur. When adopting ball valve control blowdown, need connect a ball valve in the below of water heater drain, the ball valve is independent of setting outside the water heater, and own volume is great, and control the operating handle of ball valve can occupy great space in the radial position of ball valve, influences the product pleasing to the eye, and ball valve cost of manufacture is higher relatively.
Disclosure of Invention
The embodiment of the invention provides a pollution discharge control valve and a water heater, which have the advantages of good sealing performance, difficult rust, small occupied space, low manufacturing cost and scalding prevention.
In order to achieve the above purpose, the embodiment of the present invention adopts the following technical scheme:
A pollution discharge control valve comprises a valve body, a valve core, a handle and a sealing ring, wherein a water inlet and a water outlet which are communicated with the interior of the valve body are respectively arranged at two ends of the valve body;
when the handle moves along the direction of the inside of the valve body towards the water inlet of the valve body, the valve core is pushed to move towards the direction of the water inlet of the valve body, so that a water inlet gap is formed between the sealing ring and the water inlet or between the sealing ring and the upper end of the valve core;
When the handle moves along the direction of the valve body inside towards the valve body water outlet, the valve core moves along with the direction of the valve body water outlet, so that the first end of the valve core presses the sealing ring at the valve body water inlet. The pollution discharge control valve provided by the embodiment of the invention is provided with a valve body, a valve core, a handle and a sealing ring. Two ends of the valve body are communicated, one end of the valve body is provided with a water inlet and is connected with a sewage outlet of the water heater, the other end of the valve body is provided with a water outlet, and sewage flows through the sewage outlet of the valve body through the sewage discharge control valve; the first end of the valve core is positioned at the water inlet of the valve body, and the second end of the valve core is positioned in the valve body; the first end of the handle is in abutting connection with the second end of the valve core, the second end of the handle extends out of the water outlet of the valve body, the handle is of a hollow structure, a drainage through hole is formed in the middle of the handle, the drainage through hole is used for conducting water flow, so that water flowing into the sewage control valve passes through the drainage through hole in the middle of the handle, and the water flows out of the valve body from the second end of the handle, so that an anti-scalding effect is achieved; the handle is in abutting connection with the valve core, so that the movement of the handle along the interior of the valve body can drive the valve core to move along the interior of the valve body along with the handle. The sealing ring is positioned between the first end of the valve core and the water inlet of the valve body, can be fixed at the first end of the valve core and also can be fixed at the water inlet of the valve body, and the sealing ring and the first end of the valve core are matched to seal the water inlet of the valve body. The handle is operated to enable the handle to move towards the water inlet of the valve body along the interior of the valve body, the handle pushes the valve core abutted against the handle to move towards the water inlet of the valve body, so that a water inlet gap is formed between the sealing ring and the water inlet of the valve body or between the sealing ring and the valve core, and the pollution discharge control valve is conducted; the handle is operated, so that the handle moves towards the water outlet of the valve body along the interior of the valve body, the valve core moves towards the water outlet of the valve body along with the handle, the first end of the valve core presses the sealing ring at the water inlet of the valve body, and the water inlet gap of the water inlet of the valve body is closed, so that the pollution discharge control valve is closed. When the pollution discharge control valve is closed, water flow is sealed outside the water inlet of the valve body, the internal components of the valve body are not contacted with water, and the rust resistance of the pollution discharge control valve is improved. The blowdown control valve assembly is embedded and installed at the blowdown pipe orifice of the water heater, the handle extends into the water outlet of the valve body, a user can control the blowdown control valve to be opened or closed through operating the handle, and compared with a ball valve, the blowdown control valve disclosed by the embodiment of the invention has the advantages that the occupied space is smaller, the aesthetic property of the water heater can be improved, the structure is simple, and the production cost is low; compared with a pollution discharge nut, the pollution discharge control valve is simple to operate, high in reliability and good in sealing performance.
On the other hand, the embodiment of the invention also provides a water heater which comprises a drain outlet, wherein the drain outlet is connected with the drain control valve.
The water heater provided by the embodiment of the invention is simpler in structure and more convenient to operate on the premise of not affecting the sewage discharging capacity of the water heater due to the arrangement of the sewage discharging control valve.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an explosion structure of a valve body integrated with a pollution discharge control valve according to an embodiment of the present invention;
FIG. 2 is a schematic diagram showing an assembled structure of a pollution discharge control valve according to an embodiment of the present invention in a closed state;
FIG. 3 is an exploded view of a blow-down control valve according to an embodiment of the present invention, wherein the valve body is of a split type structure;
FIG. 4 is a schematic diagram of an assembled structure of a split-type valve body of a pollution discharge control valve according to an embodiment of the present invention;
FIG. 5 is a schematic diagram showing an assembled structure of a blow-down control valve according to an embodiment of the present invention in an open state;
FIG. 6 is a schematic diagram of an assembly structure of a sealing ring of a pollution discharge control valve according to an embodiment of the present invention, where the sealing ring is fixed at a water outlet of a valve body;
FIG. 7 is a schematic diagram of a valve core structure of a pollution discharge control valve according to an embodiment of the present invention;
FIG. 8 is a schematic plan view of a guide groove in a blow-down control valve guide structure according to an embodiment of the present invention;
fig. 9 is a schematic structural view of a water heater according to an embodiment of the present invention.
Reference numerals:
1-a valve body; 11 water inlets; 12-water outlet; 13-a main valve body; 14-a main valve body support; 15-internal threads; 16-a second annular groove; 2-valve core; a 21-flange structure; 22-hollow structure; 23 channels; 24-a first annular groove; 3-a handle; 31-a drainage through hole; 32-thread structure; 4-a sealing ring; 5-a spring; 6-guiding structure, 61-guiding block; 62-guiding grooves; 621-positioning points downwards; 622-boot phase; 623—up anchor points; 7-a sealing gasket; 100-blowdown control valve; 200-a sewage outlet; 201-external threads.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, as well as, for example, fixedly coupled, detachably coupled, or integrally coupled, unless otherwise specifically indicated and defined. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The embodiment of the invention provides a pollution discharge control valve 100, which comprises a valve body 1, a valve core 2, a handle 3 and a sealing ring 4, wherein a water inlet 11 and a water outlet 12 which are communicated with the interior of the valve body 1 are respectively arranged at two ends of the valve body 1, a first end of the valve core 2 is positioned at the water inlet 11 of the valve body, a second end of the valve core 2 is positioned in the valve body, the first end of the handle 3 is abutted against the second end of the valve core 2, the second end of the handle 3 extends out of the water outlet 12 of the valve body 1, a drainage through hole 31 is formed in the interior of the handle 3, and the sealing ring 4 is positioned between the first end of the valve core 2 and the water inlet 11 of the valve body 1 and is fixed at the first end of the valve core 2 or at the water inlet 11 of the valve body 1;
When the handle 3 moves along the direction of the water inlet 11 of the valve body 1 in the valve body 1, the valve core 2 is pushed to move towards the water inlet 11 of the valve body 1, so that a water inlet gap is formed between the sealing ring 4 and the water inlet 11 or between the sealing ring 4 and the first end of the valve core 2;
when the handle 3 moves along the direction of the water outlet 12 of the valve body 1 inside the valve body 1, the valve core 2 moves along with the direction of the water outlet 12 of the valve body 1, and the first end of the valve core 2 presses the sealing ring 4 at the water inlet 11 of the valve body.
As shown in fig. 1 and 2, a blowdown control valve 100 according to an embodiment of the present invention is provided with a valve body 1, a valve spool 2, a handle 3, and a seal ring 4. The two ends of the valve body 1 are respectively provided with a water inlet 11 and a water outlet 12 which are communicated with the interior of the valve body 1. The first end of the valve core 2 is positioned at the water inlet 11 of the valve body 1, and the second end is positioned inside the valve body 1. The first end of the handle 3 is in abutting connection with the second end of the valve core 2, the second end extends out of the water outlet 12 of the valve body, the handle 3 is of a hollow structure, and a drainage through hole 31 is formed in the middle; the handle 3 is in abutting connection with the valve core 2, so that the movement of the handle 3 along the interior of the valve body 1 can drive the valve core 2 to move along the interior of the valve body 1 along with the handle 3; the drainage through hole 31 is used for conducting water flow, so that water flow entering the sewage control valve 100 passes through the drainage through hole 31 in the middle of the handle 3 and flows out from the second end of the handle 3, and the anti-scalding effect is achieved. The sealing ring 4 is located between the first end of the valve core 2 and the valve body water inlet 11, and can be fixed at the first end of the valve core 2 or at the valve body water inlet 11, and the sealing ring 4 and the first end of the valve core 2 are matched to seal the valve body water inlet 11. Operating the handle 3 to enable the handle 3 to move along the direction of the water inlet 11 of the valve body 1 in the valve body 1, pushing the valve core 2 abutted against the handle 3 to move towards the direction of the water inlet 11 of the valve body 1 by the handle 3, and generating a water inlet gap between the sealing ring 4 and the water inlet 11 of the valve body or between the sealing ring 4 and the valve core 2, so that the pollution discharge control valve 100 is conducted; the handle 3 is operated, the handle 3 moves along the direction of the water outlet 12 of the valve body 1 in the valve body 1, the valve core 2 moves along with the handle 3 towards the water outlet 12 of the valve body 1, the first end of the valve core 2 presses the sealing ring 4 at the water inlet 11 of the valve body, and the water inlet gap of the water inlet 11 of the valve body is closed, so that the pollution discharge control valve 100 is closed. When the blowdown control valve 100 is closed, the blowdown control valve 100 seals water flow outside the water inlet 11 of the valve body, internal components of the valve body 1 are not contacted with water, and the rust prevention capability of the blowdown control valve is improved. The component of the blowdown control valve 100 is embedded in a blowdown pipe orifice of the water heater, the handle 3 extends into the blowdown pipe orifice from the water outlet 12 of the valve body, and the blowdown control valve 100 can be controlled to be opened or closed by operating the handle 3; compared with a pollution discharge nut, the pollution discharge control valve is simple to operate, high in reliability and good in sealing performance.
It should be noted that, in the blowdown control valve 100 of the present embodiment, as shown in fig. 1 and 2, the valve body 1 may be an integral body, as shown in fig. 3 and 4, the valve body 1 may also be divided into two parts, namely, a main valve body 13 and a main valve body support 14, and the main valve body 13 and the main valve body support 14 are connected by a threaded structure. As shown in fig. 2, when the sealing ring 4 and the valve core 2 close the valve body water inlet 11, the pollution discharge control valve 100 is in a non-conducting state, which is also called the pollution discharge control valve 100 is in a closed state; similarly, as shown in fig. 5, when the sealing ring 4, the valve core 2 and the water inlet 11 of the valve body are in a separated state, the pollution discharge control valve is in a conducting state, and is also called as a pollution discharge control valve is in an opening state. The illustrated installation direction of the blowdown control valve 100 is vertical, the blowdown control valve 100 can be horizontally installed or obliquely installed at a certain angle according to different positions of a blowdown outlet of a water heater, when the blowdown control valve 100 is vertically installed, a first end of a valve core 2 is an upper end of an illustrated position of the valve core 2, a second end of the valve core 2 is a lower end of the illustrated position of the valve core 2, a first end of a handle 3 is an upper end of an illustrated position of the handle 3, and a second end of the handle 3 is a lower end of the illustrated position of the handle 3. The movement of the valve core 2 is that the valve core 2 and the handle 3 are in contact but not fixedly connected with each other, the two can generate mutual pressure, and cannot generate mutual pulling force, when the handle 3 moves along the inside of the valve body 1 towards the water outlet 12 of the valve body 1, the valve core 2 also moves towards the water inlet 12 of the valve body 1 under the action of water pressure at the water inlet 11 of the valve body 1, and the valve core 2 and the handle 3 generate the same movement and displacement and still abut against each other finally.
According to the pollution discharge control valve 100 provided by the embodiment of the invention, the sealing ring 4 is positioned between the first end of the valve core 2 and the valve body water inlet 11, and the sealing ring 4 can be fixed at the upper first end of the valve core 2 or at the valve body water inlet 11. As shown in fig. 2, the first embodiment is: a sealing ring 4 is fixed at the first end of the valve core 2; as shown in fig. 6, the second embodiment is: the sealing ring 4 is fixed at the water inlet 11 of the valve body.
Example 1
As shown in fig. 2 and 5, in the blowdown control valve 100 of the embodiment of the present invention, when the seal ring 4 is fixed to the first end of the valve core 2 and the blowdown control valve 100 needs to be turned from the closed state to the open state, the operating handle 3 generates displacement toward the water inlet 11 of the valve body 1, so as to drive the valve core 2 abutting against the handle 3 and the seal ring 4 located at the first end of the valve core 2 to generate displacement toward the water inlet 11 of the valve body 1, which is the same as the handle 3, and the seal ring 4 is separated from the water outlet 11 of the valve body 1, so as to generate a water inlet gap, and the blowdown control valve 100 is turned on. When the pollution discharge control valve 100 is in a closed state, the water pressure in the water heater provides a force for the sealing ring 4 towards the water outlet 12 of the valve body 1, so that the sealing ring 4 is better attached to the water outlet 11 of the valve body, and the sealing performance of the pollution discharge control valve 100 is improved.
When the pollution discharge control valve 100 is turned from the open state to the closed state, as shown in fig. 2 and 5, because the valve core 2 is in abutting connection with the handle 3 instead of being fixedly connected, after the handle 3 is displaced downwards, the valve core 2 is displaced towards the water outlet 12 of the valve body 1 under the water pressure in the water heater and is attached to the water inlet 11 of the valve body, so that the pollution discharge control valve 100 is closed. In order to smoothly and rapidly enable the valve core 2 to displace downwards and close the pollution discharge control valve 100, a rebound mechanism 5 can be arranged at the position of the valve core 2, and when the pollution discharge control valve 100 is switched from an open state to a closed state, a force towards the water outlet 12 of the valve body 1 is provided for the valve core 2, so that the displacement of the valve core 2 towards the water outlet 12 of the valve body 1 is accelerated. The spring 5 is an excellent energy storage part, and has high structural reliability, simple manufacture and low cost, so the spring 5 is selected as a rebound structure of the pollution discharge control valve 100 in the embodiment of the invention, and the spring 5 is arranged at the valve core 2.
In order to mount the spring 5 and enable the elastic force provided by it to act on the valve core 2, as shown in fig. 7, a flange structure 21 is provided at the second end of the valve core 2, the spring 5 is sleeved around the valve core 2, one end of the spring 5 abuts against the flange structure 21 at the bottom end of the valve core 2, and the other end abuts against the water inlet 11 of the valve body 1. In order to make the overall structure of the pollution discharge control valve 100 more compact, the occupied space is reduced, the inner diameter of the spring 5 is slightly larger than the outer diameter of the valve core 2 and smaller than the outer diameter of the flange structure 21, and meanwhile, the outer diameter of the spring 5 is slightly smaller than the inner diameter of the valve body 1, so that the radial displacement of the valve core 2 is prevented or reduced. As shown in fig. 2 and 5, when the drain control valve 100 is turned from the closed state to the open state, the valve body 2 moves toward the water inlet 11 of the valve body 1, the spring 5 is compressed, the spring 5 stores energy, and when the drain control valve 100 is turned from the open state to the closed state, the spring releases energy to provide the valve body 2 with a force toward the water outlet 12 of the valve body 1, the valve body 2 smoothly displaces toward the water outlet 12 of the valve body 1, and the drain control valve 100 is closed. Regardless of whether the pollution discharge control valve 100 is in the open state or the closed state, the spring 5 is always in a compressed state, and continuously provides an elastic force for the valve core 2 toward the water outlet 12 of the valve body 1. As shown in fig. 2, when the pollution discharge control valve 100 is closed, the spring 5 provides the elastic force for the valve core 2 towards the water outlet 12 of the valve body 1 and is transmitted to the sealing ring 4, so that the sealing ring 4 is better attached to the water inlet 11 of the valve body, and the sealing performance of the pollution discharge control valve 100 is improved; when the pollution discharge control valve 100 is opened, the spring 5 in a compressed state can store more energy, and when the pollution discharge control valve 100 needs to be turned from the opened state to the closed state, the spring 5 provides larger force for the valve core towards the water outlet 12 of the valve body 1, so that the movement of the valve core 2 towards the water outlet 12 of the valve body 1 is more facilitated, and the sealing ring 4 closes a water inlet gap at the water inlet 11 of the valve body 1.
The blowdown control valve 100 of the embodiment of the present invention is further provided with a positioning structure, which is located on each component of the blowdown control valve 100 and is used for defining the relative positional relationship between the handle 3 and the valve body 1 or between the valve core 2 and the valve body 1. As shown in fig. 2, when the pollution discharge control valve 100 is in the closed state, the second end of the handle 3 is located at a relatively far position from the water inlet 11 of the valve body 1, and a positioning mechanism is arranged between the handle 3 and the valve body 1 to ensure that the handle 3 does not fall from the valve body 1; as shown in fig. 5, when the pollution discharge control valve 100 is in the open state, the spring 5 is in a compressed state, and the handle 3, the valve core 2 and the sealing ring 4 are acted by gravity, water pressure, spring force and the like towards the water outlet 12 of the valve body 1, the positioning mechanism can ensure that the assembly cannot displace towards the water outlet 12 of the valve body 1 so as to close the pollution discharge control valve 100.
When the blowdown control valve 100 is in the closed state, whether the upper end of the handle 3 abuts against the valve core 2 in the valve body 1 or not does not affect the positional relationship of other components except the handle 3, so that a positioning mechanism is not required between the handle 3 and the valve body 1, the second end of the handle 3 is directly connected with a drain pipe, and when the blowdown control valve 100 is closed, the handle 3 is directly taken out of the valve body 1 with the drain pipe, or a hard straight pipe is connected below the handle 3, so that the handle 3 is propped against the inside of the valve body 1, and the handle 3 does not drop out of the valve body 1.
The opening and closing of the pollution discharge control valve 100 is required to be achieved by the displacement of the handle 3 along the inner portion of the valve body 1 toward the water inlet 11 or the water outlet 12 of the valve body 1, and the displacement of the handle 3 toward the water inlet 11 or the water outlet 12 of the valve body 1 may be generated in various manners, for example: directly pushing or pulling the handle 3 to generate displacement towards the water inlet 11 direction or the water outlet 12 direction of the valve body 1; the handle 3 is rotated by the screw structure to generate displacement toward the water inlet 11 or the water outlet 12 of the valve body 1. But adopts the mode of directly pushing or pulling the handle, and a clamp spring structure is often required to be used as a positioning structure between the valve body 1 and the handle 3, so that the clamp spring structure is complex and the manufacturing cost is high. When the handle 3 is guided by adopting the thread structure, the handle can be displaced by enough amount only by rotating a plurality of circles, and the operation is complex. According to the blowdown control valve 100 provided by the embodiment of the invention, the guide structure 6 is arranged between the handle 3 and the valve body 4, the rotary motion of the handle 3 in the valve body 1 can be converted into displacement of the handle 3 along the direction of the water inlet 11 or the water outlet 12 of the valve body 1 in the valve body 1 through the guide structure 6, a user can operate the blowdown control valve 100 to open and close by rotating the handle 3, and the guide structure 6 is simple in structure, low in manufacturing cost and simple to operate.
The guide structure 6 is composed of a guide block 61 and a guide groove 62, and is provided on the valve body 1 and the handle 3. The guide block 61 is provided with a U-shaped structure, has a smooth surface and can smoothly slide on the surface of the guide groove 62; as shown in fig. 8, the surface of the guide groove 62 is smooth and divided into 3 stages, namely a first positioning point 621, a guide stage 622, a second positioning point 623, and the first positioning point 621 and the second positioning point 623 of the guide groove 62 are both concave structures to ensure that the guide block 61 does not slide relatively on the guide groove 62 at the positioning points. When the handle 3 is rotated, the guide block 61 slides along the guide phase 622 from the first positioning point 621 of the guide groove 62 to the second positioning point 623, or vice versa from the second positioning point 623 of the guide groove 62 to the first positioning point 621 along the guide phase 622, during which the handle 3 is displaced in the direction towards the water inlet 11 or the water outlet 12 of the valve body 1.
The guide block 61 may have a positioning function between the valve body 1 and the handle 3 at the first positioning point 621 and the second positioning point 623 of the guide groove 62, respectively. It is not necessary to provide a separate positioning structure again to limit the positional relationship between the handle 3 of the valve body 1 and the valve body.
As shown in fig. 1 and 3, the guide block 61 and the guide groove 62 of the guide structure 6 may be arranged on the valve body 1 and the handle 3 in two ways. Firstly, it is: a guide block 61 is provided on the valve body 1, and a guide groove 62 is provided on the handle 3; secondly, it is: the guide block 61 is provided on the handle 3, and the guide groove 62 is provided on the valve body 1.
The guide block 61 and the guide groove 62 of the guide structure 6 have various arrangements on the valve body 1 and the handle 3, respectively: a guide block 61 is arranged on the inner wall of the handle 3, and a guide groove 62 is arranged on the outer wall of the valve body 1; a guide block 61 is arranged on the outer wall of the handle 3, and a guide groove 62 is arranged on the inner wall of the valve body 1; a guide groove 62 is arranged on the inner wall of the handle 3, and a guide block 61 is arranged on the outer wall of the valve body 1; the guide groove 62 is provided on the outer wall of the handle 3, and the guide block 61 is provided on the inner wall of the valve body 1. In the manner that the guide block 61 is arranged on the inner wall of the handle 3 and the guide groove 62 is arranged on the outer wall of the valve body 1, as shown in fig. 1, the outer diameter of the operating part of the handle 3 can be increased, the moment arm is increased, the operating acting force is reduced, the operation is easier, the outer diameter of the handle 3 is slightly different from that of the valve body 1, and the overall aesthetic property is improved; the mode of arranging the guide groove 62 on the outer wall of the handle 3 and arranging the guide block 61 on the inner wall of the valve body 1 is that the handle is small and compact as shown in fig. 3.
When the blowdown control valve 100 of the embodiment of the invention adopts the guiding mode of arranging the guiding block 61 on the inner wall of the handle 3 and the guiding groove 62 on the outer wall of the valve body 1, the blowdown control valve 100 is in an open state from a closed state, the handle 3 is rotated, the guiding block 61 on the handle 3 slides to the upper positioning point 623 of the guiding groove 62 along the guiding stage 622 of the guiding groove 62 from the lower positioning point 621 of the guiding groove 62, the height difference between the lower positioning point 621 of the guiding groove 62 and the upper positioning point 623 in the axial direction of the valve body 1 is the upward displacement of the rotating handle 3, and the valve core 2 abutted by the handle 3 and the sealing ring 4 positioned on the valve core 2 are driven to displace by the same upward displacement, so that a water inlet gap is formed between the sealing ring 4 and the water inlet 11 of the valve body 1, and the blowdown control valve 100 is opened in a conducting manner. When the pollution discharge control valve 100 is turned from the open state to the closed state, the movement track of the guide block 61 on the guide groove 62 is opposite to the movement track of the guide block 61 on the guide groove 62 when the pollution discharge control valve 100 is turned from the closed state to the open state, and details thereof are omitted.
In the valve core 2 of the blowdown control valve 100 of the embodiment of the invention, as shown in fig. 7, the outer diameter is slightly smaller than the inner diameter of the water outlet 11 of the valve body 1, the middle and lower parts of the valve core 2 are provided with hollow structures 22, channels 23 communicated with the interior of the valve body 1 are arranged along the radial direction, the channels 23 can be circular channels or rectangular channels, in order to facilitate water flow, the water inlet gap between the valve body 1 and the sealing ring 4 and between the valve core 2 is increased, the blowdown efficiency of the blowdown control valve 100 is increased, the water inlet gap is prevented from being blocked by dirt impurities in water, the valve core 2 adopts rectangular channels, 4 rectangular channels 23 are uniformly arranged on the periphery of the valve core 2, one end of each rectangular channel 23 is flush with the upper plane of the hollow structure 22 of the valve core 2, and the other end of each rectangular channel 23 is flush with the upper plane of the flange structure 21. The hollow structure 22 of the valve core 2 is communicated with the drainage through hole 31 of the handle 3, in order to prevent sewage in the cavity of the valve body 1 from flowing out from a gap between the valve body 1 and the handle 3, a sealing gasket 7 can be arranged between the handle 3 and the valve body 1 or between the handle 3 and the valve core 2, the outer wall of the sealing gasket 7 is attached and sealed with the inner wall of the valve body 1, and the inner wall is attached with the outer wall of the handle 3; or as shown in fig. 4, the outer wall of the sealing gasket 7 is attached to the inner wall of the valve body 1, the upper end is provided with a flange structure, and the flange structure is positioned between the upper end of the handle 3 and the lower end of the valve core 2.
As shown in fig. 7, in the blowdown control valve 100 of the embodiment of the present invention, a first circumferential annular groove 24 is disposed at a first end of the valve core 2, the first annular groove 24 is in a solid structure in the middle of the first annular groove 24, the sealing ring 4 is in an annular symmetrical structure and is clamped on the first annular groove 24 of the valve core 2, the water inlet 11 of the valve body 1 is closed, the sealing ring 4 is clamped in the first annular groove 24 of the valve core 2, the sealing ring 4 is fixed at the first end of the valve core 2, the sealing ring 4 is prevented from generating displacement towards the water inlet 11 direction or the water outlet 12 direction of the valve body 1 relative to the valve core 2, and the sealing performance of the blowdown control valve 100 is increased.
When the pollution discharge control valve 100 is turned from the closed state to the open state, as shown in fig. 5, the water flow path is: the sewage flows into the valve core hollow structure 22 from the water inlet 11 of the valve body 1 of the sewage control valve 100 through the water inlet gap formed between the valve core channel 23 and the water inlet 11 of the valve body 1, part of the water flows out of the sewage control valve 100 directly through the water discharge through hole 31 of the handle 3 connected with the valve core hollow structure 22, and the other part of the water flows into the cavity of the valve body 1 through the valve core channel 23, and after the water above the sewage control valve 100 is completely discharged, the water flows into the valve core hollow structure 22 again through the valve core channel 23 and flows out of the sewage control valve 100 through the water discharge through hole 31 of the handle 3. The second end of the handle 3 can be provided with external threads 32, and the discharged sewage can be directly taken by a container and can also be connected with a sewage drain pipe at the second end of the handle 3, so that the sewage is discharged from the sewage drain pipe.
In order to increase the rust resistance and structural reliability of the pollution discharge control valve 100, the valve body 1 is made of copper or PBT (polybutylene terephthalate ) material, if the PBT material is adopted, the thread structure is made of metal inserts, the water inlet 11 of the valve body can be provided with a conical surface, and the valve body can be better attached to the sealing ring 4, so that the sealing performance of the pollution discharge control valve 100 is improved; the valve core 2 is made of nylon or PBT material, and the material has high strength, corrosion resistance and low cost; the handle 3 is made of the same material as the valve body 1 so as to be matched with each other; the sealing ring 4 can be made of silica gel, and has good elasticity and low price.
Example two
The blowdown control valve 100 of this embodiment differs from the first embodiment in that the sealing ring 4 is fixed at the water inlet 11 of the valve body 1. Thus, the handle 3 is operated to generate displacement towards the water inlet 11 side of the valve body 1, the valve core 2 which is in abutting connection with the handle 3 is pushed to do the same displacement towards the water inlet 11 side of the valve body 1, a water inlet gap is generated between the first end of the valve core 2 and the sealing ring 4, and the pollution discharge control valve 100 is opened; the handle 3 is operated, the handle 3 is caused to displace toward the water outlet 12 of the valve body 1, the valve core 2 which is in abutting connection with the handle 3 is caused to displace toward the water outlet 12 of the valve body 1, a water inlet gap is closed between the first end of the valve core 2 and the sealing ring 4, and the pollution discharge control valve 100 is closed.
In order to fix the sealing ring 4 at the water inlet 11 of the valve body 1, as shown in fig. 6, a second annular groove 16 is formed at the water inlet 11 of the valve body 1, and the sealing ring 4 may be fixed in the second annular groove 16.
The valve core 2, the handle 3, the spring 5, the positioning mechanism and the guiding mechanism 6 of the pollution discharge control valve 100 of the present embodiment are the same as those of the corresponding components of the pollution discharge control valve 100 of the first embodiment, the corresponding positional relationship and the interaction relationship between the components, and the movement process of each component is the same as that of the first embodiment in the process of the opening state, the closing state and the mutual conversion between the two states of the pollution discharge control valve 100.
On the other hand, the embodiment of the present invention also provides a water heater, as shown in fig. 9, comprising a drain outlet 200, wherein the drain outlet 200 is provided with the drain control valve 100..
The water heater of the embodiment of the invention has the advantages that the structure is simpler, the sealing performance is better, rust is not easy to generate, and the operation is more convenient on the premise that the normal use and the pollution discharge capacity of the water heater are not affected due to the arrangement of the pollution discharge control valve 100.
In order to realize that the drain control valve 100 is mounted and fixed to the drain port 200, referring to fig. 9, the drain port 200 is provided with an external thread 201, and referring to fig. 2, the outside of the valve body 1 of the drain control valve 100 is provided with an internal thread 15. Thus, the internal thread 15 of the valve body 1 is matched with the external thread 201 of the drain outlet 200, so that the drain control valve 100 can be connected to the water heater.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the scope of the present invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (8)
1. The utility model provides a blowdown control valve, includes valve body, case, handle and sealing washer, the both ends of valve body are equipped with respectively with the inside water inlet and the delivery port that communicates of valve body, the case can be in the internal removal of valve, its characterized in that, the first end of case is located the water inlet department, the second end of case is located the inside of valve body, the first end of handle is supported with the second end of case and is leaned on, the second end of handle stretches out the delivery port of valve body, and the inside of handle has the drainage through-hole, the sealing washer is located between the first end of case and the water inlet, and fix in the first end of case or fix in the water inlet department of valve body;
When the handle moves along the direction of the water inlet in the valve body, the valve core is pushed to move, so that a water inlet gap is formed between the sealing ring and the water inlet or between the sealing ring and the upper end of the valve core;
When the handle moves along the direction from the interior of the valve body to the water outlet, the valve core moves along with the handle, so that the first end of the valve core presses the sealing ring at the water inlet of the valve body;
a guide structure is arranged between the handle and the valve body, and when the handle rotates in the valve body, the guide structure can enable the handle to generate displacement in the valve body towards the direction of the water inlet or the water outlet;
the guide structure comprises a guide groove arranged on the handle and a guide block arranged on the valve body,
Or alternatively, the first and second heat exchangers may be,
The guide structure comprises a guide block arranged on the handle and a guide groove arranged on the valve body;
When the handle rotates in the valve body, the guide block slides in the guide groove in a matched mode, so that the handle generates displacement in the valve body in the direction towards the water inlet or the water outlet;
The valve core is of a hollow structure and is provided with a channel communicated with the inside of the valve body in the radial direction, the hollow structure of the valve core is communicated with the drainage through hole of the handle, the outer wall of the handle is sleeved with a sealing gasket, and the outer wall of the sealing gasket is in sealing contact with the inner wall of the valve body.
2. The blowdown control valve of claim 1, wherein the sealing ring is secured to the first end of the spool.
3. The blowdown control valve of claim 1, wherein the sealing ring is secured to the valve body at the water inlet port.
4. The blowdown control valve of claim 2, further comprising a resilient mechanism for applying a force to the valve spool in a direction toward the water outlet port to cause the seal ring to seal the water inlet port.
5. The blowdown control valve of claim 2, further comprising a positioning structure disposed between the handle and the valve body or between the valve cartridge and the valve body for relatively fixing a position between the valve cartridge and the water inlet when the handle pushes the valve cartridge toward the water inlet to create a water inlet gap between the seal ring and the water inlet.
6. The pollution control valve of claim 1, wherein either one of said guide groove and said guide block of said guide structure is provided on an inner wall of said handle and the other one of said guide groove and said guide block of said guide structure is provided on an outer wall of said valve body;
or alternatively, the first and second heat exchangers may be,
Either one of the guide groove and the guide block of the guide structure is provided at an outer wall of the handle, and the other one of the guide groove and the guide block of the guide structure is provided at an inner wall of the valve body.
7. The blowdown control valve of claim 2, wherein the first end of the valve spool is circumferentially provided with a first annular groove, and the seal ring is clamped in the first annular groove.
8. A water heater comprising a liner for storing water, the liner being provided with a drain outlet, characterized in that the drain outlet is provided with a drain control valve according to any one of claims 1 to 7.
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| CN201811390954.2A CN109578653B (en) | 2018-11-21 | 2018-11-21 | Pollution discharge control valve and water heater |
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| CN201811390954.2A CN109578653B (en) | 2018-11-21 | 2018-11-21 | Pollution discharge control valve and water heater |
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| CN112606413B (en) * | 2020-12-01 | 2022-06-07 | 抚州市银圣王洁具有限公司 | Plastic water tap valve core assembling device |
| CN114321535B (en) * | 2021-12-14 | 2023-07-14 | 中创科技孵化器泰州有限公司 | Raw material wastewater filtering device |
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| CN103697176A (en) * | 2014-01-06 | 2014-04-02 | 合肥华凌股份有限公司 | Water valve for water dispenser of refrigerator |
| CN203758026U (en) * | 2014-02-26 | 2014-08-06 | 海尔集团公司 | Dirt discharge structure of electric water heater inner container and electric water heater |
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| CN204153167U (en) * | 2014-10-14 | 2015-02-11 | 史玉林 | A kind of rock gas control valve blowdown pressure release mouth |
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| CN108413615A (en) * | 2017-02-09 | 2018-08-17 | 青岛经济技术开发区海尔热水器有限公司 | A kind of water heater blowdown apparatus and water heater |
| CN207299495U (en) * | 2017-09-04 | 2018-05-01 | 芜湖美的厨卫电器制造有限公司 | Blowdown valve and there is its water heater |
| CN207569229U (en) * | 2017-11-23 | 2018-07-03 | 朱学斌 | A kind of hydraulic control valve |
| CN108266899B (en) * | 2018-03-27 | 2024-01-30 | 芜湖美的厨卫电器制造有限公司 | Sewage discharging device and water heater |
| CN108204678B (en) * | 2018-03-27 | 2023-11-07 | 芜湖美的厨卫电器制造有限公司 | Sewage discharging device and water heater |
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