CN108869768B - Water inlet valve and water heater - Google Patents
Water inlet valve and water heater Download PDFInfo
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- CN108869768B CN108869768B CN201710327639.4A CN201710327639A CN108869768B CN 108869768 B CN108869768 B CN 108869768B CN 201710327639 A CN201710327639 A CN 201710327639A CN 108869768 B CN108869768 B CN 108869768B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 86
- 230000002093 peripheral effect Effects 0.000 claims abstract description 26
- 238000007789 sealing Methods 0.000 claims description 15
- 230000000087 stabilizing effect Effects 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 7
- 230000002829 reductive effect Effects 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 abstract description 6
- 230000008859 change Effects 0.000 description 6
- 239000000243 solution Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 208000002197 Ehlers-Danlos syndrome Diseases 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
-
- 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
The invention discloses a water inlet valve and a water heater, wherein the water inlet valve comprises: the first valve body is provided with an inner cavity with two through ends, and the peripheral surface of the first valve body is provided with a mounting hole; the steady flow assembly is arranged in the inner cavity; the filter screen is arranged in the inner cavity through the mounting hole and positioned between the filter screen and the water outlet; one end of the second valve body is embedded in the mounting hole, the second valve body is provided with a pressure relief cavity and a pressure relief channel, and a step surface deviating from the inner cavity is formed at the joint of the pressure relief channel and the pressure relief cavity; the pressure relief assembly is arranged in the pressure relief cavity and comprises a plug, an elastic piece and a fastening piece, the plug is adjacent to the step surface, and a pressure relief gap is formed between the plug and the peripheral surface of the pressure relief cavity; the fastener is fixedly arranged at one end of the pressure release cavity far away from the step surface, and the fastener is provided with a pressure release hole; the elastic piece is clamped between the plug and the fastener, so that the plug is elastically abutted against the step surface and the pressure relief hole is blocked. The water inlet valve has less assembly and installation steps and is easy to use.
Description
Technical Field
The invention relates to the technical field of water heaters, in particular to a water inlet valve and a water heater.
Background
In order to ensure stable water temperature after mixing water under the condition of large change of water outlet pressure, the existing water heater generally needs to be connected with a water inlet valve in series on a water outlet pipeline, wherein the water inlet valve has the functions of pressure stabilization and pressure relief. However, the pressure relief valve body and the filter screen of the existing water inlet valve are required to be installed on the pressure stabilizing valve body along different directions, and the pressure relief joint is further formed on the peripheral surface of the pressure relief valve body, so that the installation structure is complex.
Disclosure of Invention
The invention mainly aims to provide a water inlet valve, and aims to solve the technical problem that an existing water inlet valve is complex in mounting structure.
To achieve the above object, the present invention provides a water inlet valve comprising:
the first valve body is provided with an inner cavity with two through ends, the two ends of the inner cavity are respectively provided with a water inlet and a water outlet, and the peripheral surface of the first valve body is provided with a mounting hole communicated with the inner cavity;
the flow stabilizing component is arranged in the inner cavity and used for stabilizing the pressure of fluid in the first valve body;
the filter screen is arranged in the inner cavity through the mounting hole and traverses the flow surface of the inner cavity, and the steady flow component is positioned between the filter screen and the water outlet;
one end of the second valve body is embedded in the mounting hole, a pressure relief cavity is formed in the end face, away from the inner cavity, of the second valve body, a pressure relief channel which is communicated with the pressure relief cavity and the inner cavity is formed in the other end face, and a step surface, away from the inner cavity, is formed at the joint of the pressure relief channel and the pressure relief cavity; the method comprises the steps of,
the pressure relief assembly is arranged in the pressure relief cavity and comprises a plug, an elastic piece and a fastening piece, wherein the plug is adjacent to the step surface, and a pressure relief gap is formed between the plug and the peripheral surface of the pressure relief cavity; the fastener is fixedly arranged at one end of the pressure release cavity far away from the step surface, and a pressure release hole is formed in the fastener; the elastic piece is clamped between the plug and the fastener, so that the plug is elastically abutted to the step surface and seals the pressure relief hole.
Preferably, a groove is formed in one surface of the plug facing the step surface, and an annular flange abutting against the step surface is formed between the peripheral surface of the groove and the peripheral surface of the plug.
Preferably, a first counter bore is formed in one face, away from the step face, of the plug, a second counter bore is formed in one face, facing the step face, of the fastener, one end of the elastic piece is embedded in the first counter bore, and the other end of the elastic piece is embedded in the second counter bore.
Preferably, the fastener is in threaded engagement with the pressure relief cavity, and the elastic member is a compression spring.
Preferably, the edge of the mounting hole extends along the direction away from the first valve body, the plug is embedded in the connector, and one end of the filter screen adjacent to the plug is positioned in the mounting hole.
Preferably, the second valve body is embedded into the outer peripheral surface of one section of the joint and is provided with an annular groove, the water inlet valve further comprises a sealing ring arranged in the annular groove, and the sealing ring is in sealing fit with the inner wall surface of the joint.
Preferably, a locating counter bore is formed in the wall surface, opposite to the mounting hole, of the inner cavity, and one end, away from the second valve body, of the filter screen is located in the locating counter bore.
Preferably, the flow stabilizing assembly comprises:
the stop piece is convexly arranged on the wall surface of the inner cavity, and extends along the circumferential direction of the valve body to be annularly arranged;
the valve core comprises a core rod and a core ring protruding from the outer peripheral surface of one end of the core rod, a water through slot hole is formed in the core ring, the valve core is fixedly arranged in the inner cavity and adjacent to the stop piece, and the core ring is positioned at one end of the core rod far away from the stop piece; and
the deformation ring is sleeved on the core rod and limited between the stop piece and the core ring, and the deformation ring is used for reducing the inner edge area of the deformation ring when the hydraulic pressure is increased so as to correspondingly reduce the water passing gap between the deformation ring and the core rod; the deformation ring is used for expanding the inner edge area of the deformation ring when the hydraulic pressure is reduced, so that the water gap between the deformation ring and the core rod is correspondingly increased.
Preferably, the filter screen comprises a support and a net piece coated on the support, the support comprises an inner ring, an outer ring opposite to the inner ring, and a plurality of support rods connected with the inner ring and the outer ring, and the net piece is coated on one side of the support, which is far away from the water inlet.
The invention also provides a water heater, which comprises a water inlet valve, wherein the water inlet valve comprises:
the first valve body is provided with an inner cavity with two through ends, the two ends of the inner cavity are respectively provided with a water inlet and a water outlet, and the peripheral surface of the first valve body is provided with a mounting hole communicated with the inner cavity;
the flow stabilizing component is arranged in the inner cavity and used for stabilizing the pressure of fluid in the first valve body, and the flow stabilizing component is positioned between the filter screen and the water outlet;
the filter screen is arranged in the inner cavity through the mounting hole and traverses the flow surface of the inner cavity;
one end of the second valve body is embedded in the mounting hole, a pressure relief cavity is formed in the end face, away from the inner cavity, of the second valve body, a pressure relief channel which is communicated with the pressure relief cavity and the inner cavity is formed in the other end face, and a step surface, away from the inner cavity, is formed at the joint of the pressure relief channel and the pressure relief cavity; the method comprises the steps of,
the pressure relief assembly is arranged in the pressure relief cavity and comprises a plug, an elastic piece and a fastening piece, wherein the plug is adjacent to the step surface, and a pressure relief gap is formed between the plug and the peripheral surface of the pressure relief cavity; the fastener is fixedly arranged at one end of the pressure release cavity far away from the step surface, and a pressure release hole is formed in the fastener; the elastic piece is clamped between the plug and the fastener, so that the plug is elastically abutted to the step surface and seals the pressure relief hole.
According to the water inlet valve, the filter screen is arranged in the first valve body through the mounting hole, and the second valve body is embedded in the mounting hole, so that the filter screen and the second valve body are arranged on the first valve body along the same direction, and the assembly process is simplified; in addition, because be provided with the pressure release hole on the fastener, during the pressure release, water flows out through pressure release passageway, pressure release clearance and pressure release hole from the inner chamber of first valve body, and the one end that the first valve body was kept away from to the second valve body can direct pressure release pipe connection, has further simplified corresponding mounting structure from this.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, 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 the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an embodiment of a fill valve of the present invention;
FIG. 2 is a schematic cross-sectional view of the inlet valve of FIG. 1 taken along the axis of the first and second valve bodies;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a partial enlarged view at B in FIG. 2;
FIG. 5 is a schematic view of a partial cross-sectional structure of the inlet valve of FIG. 1 after removing the flow stabilizing assembly and the pressure relief assembly and sectioned along the axes of the first valve body and the second valve body;
FIG. 6 is a schematic view of the structure of the filter screen of FIG. 5;
fig. 7 is a schematic cross-sectional view of the filter screen of fig. 6.
Reference numerals illustrate:
| reference numerals | Name of the name | Reference numerals | Name of the name | Reference numerals | Name of the name |
| 1 | First valve body | 222 | Core ring | 43 | Step surface |
| 11 | Inner cavity | 223 | Water through slot | 44 | Clamping head |
| 12 | Water inlet | 23 | Deformation ring | 5 | Pressure relief assembly |
| 13 | Water outlet | 3 | Filter screen | 51 | Plug head |
| 14 | Mounting hole | 31 | Support frame | 511 | Groove |
| 15 | Joint | 311 | Inner ring | 512 | Flange |
| 16 | Annular groove | 312 | Outer ring | 513 | First counter bore |
| 17 | Positioning counter bore | 313 | Support bar | 52 | Elastic piece |
| 2 | Steady flow assembly | 314 | Positioning sheet | 53 | Fastening piece |
| 21 | Stop piece | 315 | Clamping hole | 531 | Pressure relief hole |
| 211 | Stop ring | 32 | Mesh sheet | 532 | Second counter bore |
| 212 | Side wall | 4 | Second valve body | 54 | Pressure relief gap |
| 22 | Valve core | 41 | Pressure relief cavity | 6 | Sealing ring |
| 221 | Core bar | 42 | Pressure relief channel |
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. 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.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a 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 at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
The invention provides a water inlet valve.
In an embodiment of the present invention, as shown in fig. 1, 2 and 5, the water inlet valve includes:
the first valve body 1 is provided with an inner cavity 11 with two through ends, the two ends of the inner cavity 11 are respectively provided with a water inlet 12 and a water outlet 13, and the peripheral surface of the first valve body 1 is provided with a mounting hole 14 communicated with the inner cavity 11;
the steady flow assembly 2 is arranged in the inner cavity 11, and the steady flow assembly 2 is used for stabilizing the pressure of fluid in the first valve body 1;
the filter screen 3 is arranged in the inner cavity 11 through the mounting hole 14 and traverses the flow surface of the inner cavity 11, and the steady flow component 2 is positioned between the filter screen 3 and the water outlet 13;
one end of the second valve body 4 is embedded in the mounting hole 14, a pressure relief cavity 41 is formed in the end face, facing away from the inner cavity 11, of the second valve body 4, a pressure relief channel 42 for communicating the pressure relief cavity 41 with the inner cavity 11 is formed in the other end face, and a step surface 43 facing away from the inner cavity 11 is formed at the joint of the pressure relief channel 42 and the pressure relief cavity 41; the method comprises the steps of,
the pressure relief assembly 5 is arranged in the pressure relief cavity 41, the pressure relief assembly 5 comprises a plug 51, an elastic piece 52 and a fastening piece 53, the plug 51 is adjacent to the step surface 43, and a pressure relief gap 54 is formed between the plug 51 and the peripheral surface of the pressure relief cavity 41; the fastening piece 53 is fixedly arranged at one end of the pressure release cavity 41 far away from the step surface 43, and the fastening piece 53 is provided with a pressure release hole 531; the elastic member 52 is sandwiched between the plug 51 and the fastener 53, so that the plug 51 elastically abuts against the step surface 43 and seals the pressure release hole 531.
In this embodiment, the first valve body 1 and the second valve body 4 are generally tubular structures, and may be manufactured by injection molding or metal die casting, and for convenience of connection with the water inlet pipe, an annular mounting groove for embedding the sealing member is provided on the outer peripheral surface of one end of the first valve body 1, and an external thread is provided on the outer peripheral surface of the other end. In addition, in order to facilitate the fixing of the first valve body 1, the outer circumferential surface of the first valve body 1 may be provided with lugs, and fixing holes may be provided on the lugs, so that the first valve body 1 may be fixed with appropriate fasteners 53.
The flow stabilizing component 2 is used to control the flow area of the inner cavity 11 of the first valve body 1 to regulate the pressure of the fluid flowing through the inner cavity 11 of the first valve body 1, and the flow stabilizing component 2 can be any existing structure, for example, a partition board arranged to traverse the inner cavity 11 is provided with a valve hole; through setting up the valve plug of a step shaft form, be equipped with on this valve plug and cross water channel, set up this valve plug of a spring coupling again, when the water channel of water flow through valve plug, produce the power that promotes the valve plug, the elasticity and this thrust balance of spring, change the flow area between valve plug and the valve opening through the position change of valve plug in order to balance pressure.
The filter screen 3 is used for filtering the fluid flowing through the inner cavity 11 of the first valve body 1, preventing impurities from interfering the normal operation of the steady flow component 2 and the pressure relief component 5, and the filter screen 3 can be matched with a fixed frame by adopting a plastic net or can be a metal net with good self-supporting property, such as a stainless steel net.
In the pressure relief assembly 5, in order to achieve a better plugging effect, one end of the plug 51, which is abutted against the step surface 43, can be made of a material with better elasticity such as rubber, and the other end can be made of a common plastic or metal material; generally, the two parts can be arranged into a split structure with middle parts, and the two parts are mutually embedded, so that the two split parts are prevented from being fixed in an adhesive mode. The elastic member 52 may be a spring or a simple rubber block, and it will be appreciated that the elastic member 52 is provided to ensure that the pressure relief chamber 41 is not blocked.
According to the water inlet valve, the filter screen 3 is arranged in the first valve body 1 through the mounting hole 14, and the second valve body 4 is embedded in the mounting hole 14, so that the filter screen 3 and the second valve body 4 are arranged on the first valve body 1 along the same direction, and the assembly process is simplified; in addition, because the pressure release hole 531 is arranged on the fastener 53, when pressure is released, water flows out from the inner cavity 11 of the first valve body 1 through the pressure release channel 42, the pressure release gap 54 and the pressure release hole 531, and one end, far away from the first valve body 1, of the second valve body 4 can be directly connected with a pressure release pipeline, so that the corresponding installation structure is further simplified.
Further, referring to fig. 3, a groove 511 is formed on a surface of the plug 51 facing the step surface 43, and an annular flange 512 abutting against the step surface 43 is formed between a peripheral surface of the groove 511 and an outer peripheral surface of the plug 51.
In this embodiment, by providing the flange 512 to abut against the step surface 43, the contact area between the plug 51 and the step surface 43 can be reduced correspondingly, and meanwhile, the unbalance of the mating surface can be compensated by utilizing the deformation of the flange 512, so that the plugging effect is improved compared with the use of the whole end surface to mate with the step surface 43.
Further, a first counter bore 17 is formed on the surface, facing away from the step surface 43, of the plug 51, a second counter bore 532 is formed on the surface, facing towards the step surface 43, of the fastener 53, one end of the elastic piece 52 is embedded in the first counter bore 17, and the other end of the elastic piece 52 is embedded in the second counter bore 532.
In this embodiment, the elastic member 52 is not easily separated from the plug 51 or the fastener 53 during the compression and expansion process, and can keep the centering and abutting with the plug 51 and the fastener 53, so as to ensure the pre-compression force of the plug 51. Preferably, the fastener 53 is threadedly engaged with the relief cavity 41, and the resilient member 52 is a compression spring. Thus, by adjusting the depth of screwing the fastener 53, the pre-pressure of the elastic member 52 acting on the plug 51 can be changed, and thus the pressure release threshold can be changed.
Further, the edge of the mounting hole 14 extends along the direction away from the first valve body 1 to form a joint 15, the plug 51 is embedded in the joint 15, and one end of the filter screen 3 adjacent to the plug 51 is positioned in the mounting hole 14.
In this embodiment, the joint 15 is provided to enhance the connection strength between the second valve body 4 and the first valve body 1, and one end of the filter screen 3 is located in the mounting hole 14, so that the filter screen can be supported and a gap between the filter screen and the wall surface of the inner cavity 11 can be prevented. To ensure sealing and fixing, the second valve body 4 is screwed with the joint 15. The outer peripheral surface of the end of the second valve body 4 exposed to the joint 15 is a plurality of facets connected in the circumferential direction of the plug 51, so that the second valve body 4 can be easily rotated.
Further, an annular groove (not shown) is formed in the outer peripheral surface of a section of the second valve body 4 embedded in the joint 15, the water inlet valve further comprises a sealing ring 6 arranged in the annular groove, and the sealing ring 6 is in sealing fit with the inner wall surface of the joint 15. In this way, it is possible to prevent seepage at the mating surface of the water second valve body 4 and the joint 15.
Further, referring to fig. 2 again, a locating counter bore 17 is formed on a wall surface of the inner cavity 11 opposite to the mounting hole 14, and one end of the filter screen 3, which is far away from the second valve body 4, is located in the locating counter bore 17. Both ends of the filter screen 3 are supported, so that the filter screen 3 is not easy to shake under the impact force of water, and a good filtering effect can be guaranteed.
Further, referring to fig. 2 and 4, the flow stabilizing assembly 2 includes:
the stop piece 21 is convexly arranged on the wall surface of the inner cavity 11, and the stop piece 21 extends along the circumferential direction of the valve body and is annularly arranged;
the valve core 22, the valve core 22 includes core bar 221 and core ring 222 protruding to locate the peripheral surface of one end of core bar 221, offer the slotted hole 223 on the core ring 222, the valve core 22 locates the inner chamber 11 and adjacent to the stop 21 fixedly, the core ring 222 locates at one end far away from stop 21 of core bar 221; and
the deformation ring 23 is arranged in the inner cavity 11, the deformation ring 23 is sleeved on the core bar 221 and limited between the stop piece 21 and the core ring 222, and the deformation ring 23 is used for reducing the inner edge area of the deformation ring 23 when the hydraulic pressure is increased so as to correspondingly reduce the water passing gap between the deformation ring 23 and the core bar 221; the deforming ring 23 is used for expanding the inner edge area when the hydraulic pressure is reduced, so as to correspondingly increase the water gap between the deforming ring 23 and the core rod 221.
In the present embodiment, the stopper 21 may be separate from the first valve body 1 and detachably attached to the first valve body 1, or may be provided integrally with the first valve body 1. The length of the core rod 221 of the valve core 22 may be adaptively adjusted according to the size of the deformation ring 23, the shape of the core rod 221 may be configured in a column shape, and the core ring 222 may be configured in a circular ring coaxial with the core rod 221. The deformation ring 23 may be made of elastic material, and in order to facilitate that the deformation ring 23 can change the inner edge area correspondingly along with the hydraulic change, the deformation ring 23 may also be configured to include two opposite hard ring pieces adhered at the outer edge of the deformation ring 23, and an elastic skin connected to the inner edges of the two hard ring pieces at the inner edge of the deformation ring 23, where the two hard ring pieces and the elastic skin enclose a sealed cavity filled with a certain gas.
The sealing ring 6 sleeved on the core bar 221 and limited between the stop piece 21 and the core ring 222 is arranged in the inner cavity 11 of the valve body, so that the inner edge area of the sealing ring 6 is reduced when the hydraulic pressure is increased, the water passing gap between the sealing ring 6 and the core bar 221 is correspondingly reduced, the water flowing area at the position is reduced, and the water pressure of the water outlet 13 is stabilized; therefore, the water outlet effect of the water heater is effectively ensured, and the rated water outlet quantity is achieved. Compared with the existing water inlet valve, the steady flow assembly 2 of the embodiment does not need to install a spring in the first valve body 1, and the change of the size of the water gap is not realized through the movement of the valve core 22, so that the valve core 22 and the inner wall of the valve cavity do not need to be in sliding fit, and the installation requirement is lower, therefore, the water inlet valve of the embodiment is simple in structure, convenient to assemble and lower in processing cost.
Preferably, in order to further simplify the assembly, the stopper 21 includes a stopper ring 211 and a cylindrical side wall 212 extending from an outer edge of the stopper ring 211, an outer wall surface of the side wall 212 being engaged with a wall surface of the inner cavity 11; the outer edge of the core ring 222 is engaged with the inner wall surface of the side wall 212, and the deformation ring 23 is located in the space enclosed by the stop ring 211 and the side wall 212. In this way, the installation on the wall of the inner cavity 11 of the first valve body 1 is more firm; meanwhile, the stop piece 21, the deformation ring 23 and the valve core 22 can be assembled together and then are assembled into the inner cavity 11 of the first valve body 1 during the assembly, so that the assembly and the disassembly are simpler and more convenient.
Further, referring to fig. 2 and fig. 5 to fig. 7, the filter screen 3 includes a support 31 and a mesh sheet 32 coated on the support 31, the support 31 includes an inner ring 311, an outer ring 312 opposite to the inner ring 311, and a plurality of support rods 313 connecting the inner ring 311 and the outer ring 312, and the mesh sheet 32 is coated on one side of the support 31 facing away from the water inlet 12.
In this embodiment, the screen 3 forms an opening towards the water inlet 12, so that the incoming water flow can be better caught or caught. The structural strength of the filter screen 3 itself can be enhanced by providing the support 31, thereby facilitating the installation of the filter screen 3, and in particular, the support 31 may be formed with a mesh 32 that may be flexible.
Preferably, a positioning plate 314 is arranged between each two adjacent support rods 313 on the inner edge of the outer ring 312, and the positioning plate 314 extends from the outer ring 312 in the radial inward direction of the outer ring 312; the top ends of the positioning plates 314 are enclosed to form a clamping hole 315, the inner end surface of the second valve body 4 is convexly provided with a clamping head 44 embedded in the clamping hole 315, the pressure release channel 42 penetrates through the clamping head 44, and the inner end surface of the second valve body 4 is abutted with the positioning plates 314. The positioning plate 314 can conveniently support the filter screen 3 to the proper position of the first valve body 1 by using the second valve body 4, and the clamping hole 315 is convenient for assembling the filter screen 3 to the second valve body 4, so as to be convenient for being installed to the first valve body 1 together with the second valve body 4. Further, since a gap may be formed between two adjacent positioning pieces 314, a protrusion may be provided on the outer circumferential surface of the chuck 44 to engage with the gap for the convenience of rotating the filter screen 3.
The invention also provides a water heater, which comprises a water inlet valve, wherein the specific structure of the water inlet valve refers to the embodiment, and the water heater adopts all the technical schemes of all the embodiments, so that the water heater at least has all the beneficial effects brought by the technical schemes of the embodiments, and the water heater is not repeated.
The foregoing description of the preferred embodiments of the present invention should not be construed as limiting the scope of the invention, but rather should be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the following description and drawings or any application directly or indirectly to other relevant art(s).
Claims (10)
1. A water inlet valve for a water heater, the inlet valve comprising:
the first valve body is provided with an inner cavity with two through ends, the two ends of the inner cavity are respectively provided with a water inlet and a water outlet, and the peripheral surface of the first valve body is provided with a mounting hole communicated with the inner cavity;
the flow stabilizing component is arranged in the inner cavity and used for stabilizing the pressure of fluid in the first valve body;
the filter screen is arranged in the inner cavity through the mounting hole and traverses the flow surface of the inner cavity, and the steady flow component is positioned between the filter screen and the water outlet;
one end of the second valve body is embedded in the mounting hole, a pressure relief cavity is formed in the end face, away from the inner cavity, of the second valve body, a pressure relief channel which is communicated with the pressure relief cavity and the inner cavity is formed in the other end face, and a step surface, away from the inner cavity, is formed at the joint of the pressure relief channel and the pressure relief cavity; the method comprises the steps of,
the pressure relief assembly is arranged in the pressure relief cavity and comprises a plug, an elastic piece and a fastening piece, wherein the plug is adjacent to the step surface, and a pressure relief gap is formed between the plug and the peripheral surface of the pressure relief cavity; the fastener is fixedly arranged at one end of the pressure release cavity far away from the step surface, and a pressure release hole is formed in the fastener; the elastic piece is clamped between the plug and the fastener, so that the plug is elastically abutted to the step surface and seals the pressure relief hole.
2. The inlet valve of claim 1, wherein a groove is formed in a surface of the plug facing the step surface, and an annular flange abutting the step surface is formed between a peripheral surface of the groove and an outer peripheral surface of the plug.
3. The water inlet valve of claim 2, wherein a first counter bore is formed in a face, facing away from the step face, of the plug, a second counter bore is formed in a face, facing the step face, of the fastener, and one end of the elastic piece is embedded in the first counter bore, and the other end of the elastic piece is embedded in the second counter bore.
4. The fill valve of claim 3, wherein said fastener is threadably engaged with said pressure relief chamber and said resilient member is a compression spring.
5. The fill valve of claim 1, wherein an edge of the mounting hole extends away from the first valve body with a tab, the plug being received in the tab, an end of the filter screen adjacent the plug being located in the mounting hole.
6. The inlet valve of claim 5, wherein an annular groove is formed in the outer peripheral surface of a section of the second valve body embedded in the joint, and the inlet valve further comprises a sealing ring arranged in the annular groove, and the sealing ring is in sealing fit with the inner wall surface of the joint.
7. The fill valve of claim 6, wherein a wall of the interior cavity opposite the mounting hole is formed with a locating counterbore, and an end of the filter screen remote from the second valve body is positioned within the locating counterbore.
8. The fill valve of any one of claims 1-7, wherein the flow stabilizing assembly comprises:
the stop piece is convexly arranged on the wall surface of the inner cavity, and extends along the circumferential direction of the valve body to be annularly arranged;
the valve core comprises a core rod and a core ring protruding from the outer peripheral surface of one end of the core rod, a water through slot hole is formed in the core ring, the valve core is fixedly arranged in the inner cavity and adjacent to the stop piece, and the core ring is positioned at one end of the core rod far away from the stop piece; and
the deformation ring is sleeved on the core rod and limited between the stop piece and the core ring, and the deformation ring is used for reducing the inner edge area of the deformation ring when the hydraulic pressure is increased so as to correspondingly reduce the water passing gap between the deformation ring and the core rod; the deformation ring is used for expanding the inner edge area of the deformation ring when the hydraulic pressure is reduced, so that the water gap between the deformation ring and the core rod is correspondingly increased.
9. The fill valve of any one of claims 1-7, wherein the screen comprises a support and a mesh wrapped on the support, the support comprising an inner ring, an outer ring opposite the inner ring, and a plurality of support rods connecting the inner ring and the outer ring, the mesh wrapped on a side of the support facing away from the water inlet.
10. A water heater comprising a fill valve as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710327639.4A CN108869768B (en) | 2017-05-10 | 2017-05-10 | Water inlet valve and water heater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710327639.4A CN108869768B (en) | 2017-05-10 | 2017-05-10 | Water inlet valve and water heater |
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| Publication Number | Publication Date |
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| CN108869768A CN108869768A (en) | 2018-11-23 |
| CN108869768B true CN108869768B (en) | 2024-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710327639.4A Active CN108869768B (en) | 2017-05-10 | 2017-05-10 | Water inlet valve and water heater |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109724257A (en) * | 2019-01-11 | 2019-05-07 | 中山市思源电器有限公司 | Water inlet interface with steady flow pressure relief for gas water heater |
| CN111829221A (en) * | 2019-04-17 | 2020-10-27 | 合肥华凌股份有限公司 | Ice making system and refrigerator |
| CN111470175A (en) * | 2020-04-24 | 2020-07-31 | 临沂市产业技术研究院 | A wine brewing constant pressure device |
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| CN206845942U (en) * | 2017-05-10 | 2018-01-05 | 芜湖美的厨卫电器制造有限公司 | Water intaking valve and water heater |
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| CA201187A (en) * | 1920-06-22 | W. Larner Chester | Valve | |
| US3508736A (en) * | 1967-05-24 | 1970-04-28 | Rockwell Mfg Co | Seat ring assemblies for valves |
| US6802341B1 (en) * | 1999-09-08 | 2004-10-12 | Australian Dynamic Products Pty Ltd. | Tap |
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|---|---|
| CN108869768A (en) | 2018-11-23 |
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