CN109654237B - Low-pressure water inlet anti-blocking wastewater electromagnetic valve - Google Patents
Low-pressure water inlet anti-blocking wastewater electromagnetic valve Download PDFInfo
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- CN109654237B CN109654237B CN201910154363.3A CN201910154363A CN109654237B CN 109654237 B CN109654237 B CN 109654237B CN 201910154363 A CN201910154363 A CN 201910154363A CN 109654237 B CN109654237 B CN 109654237B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 161
- 239000002351 wastewater Substances 0.000 title claims abstract description 104
- 238000007789 sealing Methods 0.000 claims abstract description 144
- 210000004907 gland Anatomy 0.000 claims abstract description 29
- 239000012535 impurity Substances 0.000 claims abstract description 4
- 238000001746 injection moulding Methods 0.000 claims description 11
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 210000000476 body water Anatomy 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution 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
- 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
- F16K1/52—Means for additional adjustment of the rate of flow
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
- F16K31/0655—Lift valves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention discloses a low-pressure water inlet anti-blocking wastewater electromagnetic valve, which comprises a valve body, a gland sealing ring, a flow barrel sealing ring, a guide sleeve, a sliding rod sealing ring, a flow needle, an anti-blocking spring, a sealing ring component and a guide rod, wherein the valve body is of a T-shaped double-flow-channel structure which is vertically communicated, a wastewater flow channel and a main flow channel are vertically intersected at a water sealing port, when the electromagnetic valve is closed, water in the valve body enters the flow barrel of the wastewater flow channel, the guide sleeve is arranged in the flow barrel, the sliding rod sealing ring which is tightly matched with a water guide ring is arranged in the guide sleeve, the sliding rod sealing ring drives the sliding rod and the flow needle to move back and forth in the water guide ring along with the change of water pressure in the wastewater flow channel, the flow needle moves back and forth so as to remove scale or tiny impurities in a wastewater outlet, keep water flow and realize uniform and stable small flow, can accurately control the wastewater flow, reduce running noise and prevent blockage of the wastewater outflow pipeline.
Description
Technical Field
The invention relates to an electromagnetic valve, in particular to a waste water electromagnetic valve, and belongs to the technical field of electric equipment.
Background
The waste water electromagnetic valve of the water purifier is an indispensable part of the water purifier, and in general, the waste water electromagnetic valve and the high-pressure water pump are connected in parallel and then connected to a computer board. When water is produced or washed, the waste water electromagnetic valve is opened and the high-pressure water pump works; when in standby, the waste water electromagnetic valve is closed and the high-pressure water pump stops rotating. The electromagnetic valve for waste water is used to open water inlet when making water or flushing and close water inlet when waiting for power cut, so that it can not waste water when the water purifier is not working.
In the current market, when the wastewater electromagnetic valve is in a closed state, a water inlet is communicated with a certain water pressure, and accurate small wastewater flow is needed, but the accurate small wastewater flow is not easy to control in the actual use process; in addition, because the flow is little, water pressure is low, the waste water outflow pipeline is blocked easily, leads to the problem that waste water can not in time discharge.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the low-pressure water inlet anti-blocking wastewater electromagnetic valve which can accurately control the wastewater flow, reduce the operation noise and prevent the blockage of a wastewater outflow pipeline.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a low pressure water inlet anti-blocking waste water solenoid valve, which comprises a valve body, the gland sealing washer, the flow bucket sealing washer, the guide pin bushing, the slide bar sealing washer, the flow needle, anti-blocking spring, sealing washer subassembly and guide arm, the valve body is the "T" double-flow way structure of vertical intercommunication, the main flow way is the cylindrical runner that link up the valve body, both ends are water inlet and delivery port respectively, waste water runner is perpendicular with the main flow way, meet in sealing port department, when solenoid valve is closed, the sealing port is plugged up by sealing washer subassembly, the water in the valve body flows in through the waste water inflow hole of waste water runner, waste water runner terminal surface is equipped with a gland of taking the sealing washer, be equipped with a flow bucket in the waste water runner, the semicircle fixed block of flow bucket bottom is fixed with the spacing in the valve body cooperation, prevent that the flow bucket from rotating in the waste water runner, be equipped with a guide pin bushing in the barrel of flow bucket, the guide pin bushing is loosely placed in the barrel, install the flow bucket sealing washer on the step of the sealing bench of guide bushing, seal with waste water runner internal surface interference fit sealing water flow; the guide sleeve is internally provided with a sliding rod capable of moving along with the variation of water pressure, the middle section of the sliding rod body is provided with a groove serving as a sealing groove for installing a sliding rod sealing ring, the sliding rod sealing ring is tightly matched with the inner wall of a water guide ring of the guide sleeve, the sliding rod with the sliding rod sealing ring can move back and forth in the guide sleeve along with the variation of the water pressure formed by opening and closing of the electromagnetic valve, water flows uniformly and stably enter the barrel body of the flow barrel by utilizing the water dividing column of the guide sleeve, and the water flow noise is small; one end of the sliding rod is injection-molded with the flow needle, scale or tiny impurities in the wastewater outlet hole can be removed by the back-and-forth movement of the flow needle, the water flow is kept smooth, meanwhile, a narrow channel is formed between the flow needle and the wastewater outlet hole, uniform and stable small flow can be realized, and finally the water flows into the water outlet; when the electromagnetic valve is electrified, the coil generates electromagnetic attraction to drive the iron core to lift upwards, so as to drive the sealing ring component at the water sealing port of the valve body to lift upwards to the guide rod, and water vertically and downwards enters the water outlet of the main runner from the water sealing port of the valve body; meanwhile, the water pressure in the waste water flow channel is reduced, the water flow pressure in the flow barrel is reduced, and the rebound force of the anti-blocking spring pushes the sliding rod to the bottom of the guide sleeve.
The invention relates to a low-pressure water inlet anti-blocking waste water electromagnetic valve, wherein a gland consists of a body and a locating plate, wherein the body is of an injection molded columnar hollow structure with steps, the structure comprises a fastening end, a sealing groove and a guiding end, the fastening end is in interference fit with the inner diameter of a waste water flow channel, the locating plate is arranged on the fastening end and is a stainless steel ring uniformly provided with a plurality of small teeth, when the gland is injection molded, the locating plate is directly embedded into the fastening end to form an embedded integrated structure with the fastening end, a circle of uniform locating convex small teeth is formed on the fastening end, and when the gland is forcedly reversely buckled into the waste water flow channel of a valve body, the sealing plate can bear higher pressure and is convenient and firm to install; the seal groove is used for installing the gland sealing ring, the outer diameter of the guide end is smaller than that of the fastening end to play a role in installation and guide, a chamfer is arranged at the edges of the seal groove and the guide end to facilitate assembly of the gland sealing ring, and a hollow stealing groove is arranged in the gland to prevent bad process phenomena such as deformation and air holes during injection molding.
The invention relates to a low-pressure water inlet anti-blocking wastewater electromagnetic valve, wherein a flow barrel is a cylindrical barrel loosely matched with a wastewater flow passage, and comprises a barrel body, a spring positioning groove, a correction hole and a semicircular arc fixing block, wherein the spring positioning groove is a cylindrical groove with a boss and is used for correcting and fixing an anti-blocking spring, the rear of the spring positioning groove is provided with the correction hole with a large-scale chamfer structure and used for correcting a flow needle to prevent the inclination of the flow needle, a small through hole at the tail end of the correction hole is a wastewater outlet hole and is communicated with a water outlet of a valve body, and the outer side of the bottom of the flow barrel body is provided with the semicircular arc fixing block which is matched with a limiting table of the valve body to prevent the flow barrel from rotating or inclining; an inward notch serving as a limiting ring is arranged at the inlet of the flow barrel body and is matched with the guide sleeve.
The invention relates to a low-pressure water inlet anti-blocking wastewater electromagnetic valve, wherein a guide sleeve consists of a water inlet plate, a sealing table, a water guide ring and a cross hole, the water inlet plate is a disc with the middle provided with the cross hole, the water inlet plate is connected with the sealing table, the sealing table is of a cylindrical step structure, the outer diameter of the bottom of the sealing table is larger than that of the water inlet plate, the sealing table is in clearance fit with the inner diameter of a wastewater flow channel, a step of the sealing table is used for installing a flow barrel sealing ring, the flow barrel sealing ring is in interference fit with the inner wall of the wastewater flow channel to form a sealing space, and the top of the step of the sealing table is in fit limit with a limiting ring of a barrel opening of the flow barrel; the sealing platform links to each other with the water guide ring, and the water guide ring is the external diameter and is less cylindrical structure than sealing platform step external diameter, comprises base and water diversion post, and the water diversion post is a plurality of little semicylinder that evenly sets up in base upper portion interval, the rivers of being convenient for discharge get into flow bucket in, the semicircle cambered surface of water diversion post is whole inwards, is favorable to reducing the resistance with the slide bar sealing washer, water diversion post top is equipped with the chamfer, the assembly of being convenient for just can not fish tail other accessories.
The invention relates to a low-pressure water inlet anti-blocking wastewater electromagnetic valve, wherein a slide bar is an injection molding piece comprising a boss, a spring positioning table, a sealing groove and a slide bar body, the slide bar body is a cylinder, the middle of the slide bar body is provided with the sealing groove, the middle of the sealing groove is provided with a separation table which is used for separating and limiting a slide bar sealing ring, one end of the slide bar body is connected with the cylindrical spring positioning table, and the center of the spring positioning table is provided with the boss which is used for reinforcing a flow needle; the flow needle is a stainless steel rod, one end embedded into the sliding rod body is bent, and the flow needle is directly embedded into one end of the sliding rod body when the sliding rod is injection molded and is integrally injection molded with the sliding rod; the sliding rod sealing ring is arranged in the sealing groove and is tightly matched with the inner wall of the guide sleeve.
The invention relates to a low-pressure water inlet anti-blocking waste water electromagnetic valve, wherein the top and the bottom of an anti-blocking spring are provided with a circle of parallel rings, so that the phenomenon of deflection during installation is prevented.
The following beneficial effects are produced by adopting the technical scheme: according to the low-pressure water inlet anti-blocking waste water electromagnetic valve, when the electromagnetic valve is not electrified, the iron core is reset, the sealing ring component falls back to seal the water sealing port of the valve body, valve body water flows into the guide sleeve through the waste water inflow port of the waste water pipeline at the water sealing port, the guide sleeve and the flow barrel form a sealing space through interference fit of the flow barrel sealing ring, when water pressure is gradually increased and is larger than the internal matching pressure of the sliding rod sealing ring and the water guiding ring of the guide sleeve and the resilience force of the anti-blocking spring, the water pressure pushes the sliding rod sealing ring to move forwards, so that the sliding rod and the flow needle are driven to move forwards, when the sliding rod sealing ring moves beyond the base of the water guiding ring and reaches a water dividing column, water flows out from the gaps of each water dividing column, enters the flow barrel body, moves forwards along with the sliding rod, moves forwards in the flow needle to the waste water outflow port in the flow barrel, and is blocked by the flow needle if scales or other tiny foreign matters are generated in the flow barrel, the waste water outflow port is dredged by the flow needle, and the water flow is ensured to smoothly enter the valve body water outlet through the waste water outlet port, and waste water is discharged; when the electromagnetic valve is electrified, water flows in the valve body and flows out through the water outlet of the main flow channel, the water pressure at the position of the waste water flow channel suddenly drops, and when the water pressure is smaller than the matched pressure between the sealing ring of the sliding rod and the water guide ring of the guide sleeve and the resilience force of the spring, the spring is reset to push the sliding rod to move backwards to the bottom of the guide sleeve, so that the water flow is effectively sealed, and the water cannot flow out.
The invention is further described below with reference to the accompanying drawings.
Drawings
FIG. 1 is an exploded view of an embodiment of the present invention.
Fig. 2 is a schematic structural diagram (cross-sectional view) of the working principle of the embodiment of the invention when power is applied.
Fig. 3 is a schematic structural diagram (cross-sectional view) of the working principle of the embodiment of the invention when power is off.
Fig. 4 is a schematic diagram of a gland structure according to an embodiment of the present invention.
Fig. 5 is a schematic cross-sectional view of a gland according to an embodiment of the present invention.
FIG. 6 is a schematic diagram of a flow bucket according to an embodiment of the present invention.
FIG. 7 is a schematic cross-sectional view of a flow barrel according to an embodiment of the present invention.
Fig. 8 is a schematic structural view of a guide sleeve according to an embodiment of the present invention.
Fig. 9 is a schematic cross-sectional view of a guide sleeve according to an embodiment of the present invention.
Fig. 10 is a schematic structural diagram of an anti-blocking mechanism according to an embodiment of the present invention.
In the figure: 1 valve body, 11 water inlets, 12 wastewater channels, 121 wastewater inlets, 122 limit tables, 13 water outlets, 2 gland, 21 fastening ends, 22 sealing grooves, 23 guide ends, 24 material stealing grooves, 25 chamfering, 26 positioning sheets, 3 gland sealing rings, 4 flow barrels, 41 barrel bodies, 42 spring positioning grooves, 43 wastewater outlet holes, 44 semicircular arc fixing blocks, 45 limit rings, 5 flow barrel sealing rings, 6 guide sleeves, 61 water inlet plates, 62 sealing tables, 621 steps, 63 water guide rings, 631 bases, 632 water distribution columns, 6321 chamfering, 64 cross holes, 7 anti-blocking mechanisms, 71 sliding rods, 711 sliding rod bodies, 7111 sealing grooves, 7112 separation tables, 712 spring positioning tables, 713 bosses, 72 flow needles, 73 sliding rod sealing rings, 8 anti-blocking springs, 9 guide rods and 10 sealing ring assemblies.
Detailed Description
The low-pressure water inlet anti-blocking wastewater electromagnetic valve provided by the embodiment of the invention can accurately control the low-pressure small wastewater flow, reduce the operation noise and prevent the blockage of a wastewater outflow pipeline.
As shown in fig. 1, fig. 2 and fig. 3, the low-pressure water inlet anti-blocking waste water electromagnetic valve in this embodiment includes a valve body 1, a gland 2, a gland sealing ring 3, a flow barrel 4, a flow barrel sealing ring 5, a guide sleeve 6, a slide rod 71, a slide rod sealing ring 73, a flow needle 72, an anti-blocking spring 8, a sealing ring 10 and a guide rod 9, wherein the valve body 1 is of a vertically-communicated T-shaped double-channel structure, the main channel 11 is a cylindrical channel penetrating through the valve body, two ends are respectively provided with a water inlet 11 and a water outlet 13, the waste water channel 12 is vertical to the main channel 11, and is intersected at the water sealing port, when the electromagnetic valve is closed, the water sealing port is blocked by the sealing ring 10, water in the valve body flows in through a waste water inflow hole 121 of the waste water channel 12, the end face of the waste water channel 12 is provided with a gland 2 with a sealing ring, the waste water channel 12 is internally provided with a semicircular arc fixing block 44 at the bottom of the flow barrel 1, the flow barrel is fixedly matched with a limiting table 122 in the valve body 12, the flow barrel 4 is prevented from rotating in the waste water channel 12, the 41 barrel body is internally provided with a guide sleeve 6, the guide sleeve 6 is loosely arranged in the 41 barrel body of the 4, the sealing ring is blocked by the sealing ring 62 is arranged on the sealing ring 5 in the sealing ring 5, and is in the sealing surface of the sealing ring 5 is in the sealing ring of the waste water channel; the guide sleeve 6 is internally provided with a 71 sliding rod which can move along with the variation of water pressure, the middle section of the 711 sliding rod body is provided with a groove serving as a 7111 sealing groove for installing a 73 sliding rod sealing ring, the 73 sliding rod sealing ring is tightly matched with the inner wall of the 63 water guide ring of the guide sleeve 6, the 71 sliding rod with the 73 sliding rod sealing ring can move back and forth in the guide sleeve 6 along with the variation of the water pressure formed by opening and closing an electromagnetic valve, and by utilizing 632 water columns of the guide sleeve 6, water flow uniformly and stably enters the 41 barrel body of the 4-flow barrel, and the water flow noise is small; one end of the 71 slide bar is injection-molded with the flow needle 72, scale or tiny impurities in the 43 wastewater outlet hole can be removed by the forward and backward movement of the 72 flow needle, the water flow is kept smooth, meanwhile, a narrow channel is formed between the 72 flow needle and the 43 wastewater outlet hole, uniform and stable small flow can be realized, and finally the small flow is converged into the 13 water outlet; when the electromagnetic valve is electrified, the coil generates electromagnetic attraction to drive the iron core to lift upwards, so as to drive the 10 sealing ring component at the water sealing port of the valve body 1 to lift upwards to the 9 guide rod, and water vertically and downwards enters the water outlet of the main runner 13 from the water sealing port of the valve body; meanwhile, the water pressure in the 12 waste water flow channel is reduced, the water flow pressure in the 4-flow barrel is reduced, and the rebound force of the 8 anti-blocking spring pushes 71 the sliding rod to the bottom of the 6 guide sleeve.
As shown in fig. 4 and 5, the low-pressure water inlet anti-blocking waste water electromagnetic valve in the embodiment, wherein the 2 gland consists of a body and 26 positioning pieces, wherein the body is of an injection molded columnar hollow structure with steps, the body comprises a 21 fastening end, a 22 sealing groove and a 23 guiding end, the 21 fastening end is in interference fit with the inner diameter of a 12 waste water flow channel, the 21 fastening end is provided with the 26 positioning pieces, the 26 positioning pieces are stainless steel rings uniformly provided with a plurality of small teeth, when the 2 gland is injection molded, the 21 fastening end is directly embedded into the 21 fastening end to form an embedded integrated structure with the 21 fastening end, a circle of uniform positioning convex small teeth are formed on the 21 fastening end, and when the 2 gland is forcedly reversely buckled and embedded into the 12 waste water flow channel of the 1 valve body, the installation is convenient and firm, and the 2 gland can bear higher pressure; the sealing groove 22 is used for installing the sealing ring 3, the outer diameter of the guiding end 23 is smaller than that of the fastening end 21, the installation guiding function is achieved, the edges of the sealing groove 22 and the guiding end 23 are provided with 25 chamfers, the sealing ring 3 is convenient to assemble, the hollow 24 material stealing groove is arranged in the sealing cover 2, and the phenomena of poor processes such as deformation, air holes and the like during injection molding are prevented.
As shown in fig. 6 and 7, the low-pressure water inlet anti-blocking wastewater electromagnetic valve in this embodiment, wherein the 4 flow barrel is a cylindrical barrel loosely matched with the 12 wastewater flow passage, and comprises a 41 barrel body, a 42 spring positioning groove, a correction hole, a 43 wastewater outlet hole and a 44 semicircular arc fixing block, wherein the 42 spring positioning groove is a cylindrical groove with a boss and is used for correcting and fixing the 8 anti-blocking springs, the 42 spring positioning groove is provided with a correction hole with a large chamfer structure for correcting the 72 flow needle to prevent the inclination of the 72 flow needle, a small through hole at the tail end of the correction hole is the 43 wastewater outlet hole and is communicated with the 13 water outlet of the 1 valve body, and a 44 semicircular arc fixing block is arranged at the outer side of the bottom of the 41 barrel body of the 4 flow barrel and is matched with the 122 limiting table of the 1 valve body to prevent the 4 flow barrel from rotating or inclining; an inward notch serving as a 45 limiting ring is arranged at the inlet of the flow barrel 41 body and is matched with the 6 guide sleeve.
As shown in fig. 8 and 9, the low-pressure water inlet anti-blocking wastewater electromagnetic valve in this embodiment, wherein the 6 guide sleeve is composed of a 61 water inlet plate, a 62 sealing table, a 63 water guide ring and a 64 cross hole, the 61 water inlet plate is a disc with a 64 cross hole in the middle, the 61 water inlet plate is connected with the 62 sealing table, the 62 sealing table is in a cylindrical step structure, the bottom outer diameter of the 62 sealing table is larger than the outer diameter of the 61 water inlet plate, the 62 sealing table is in clearance fit with the inner diameter of the 12 wastewater channel, the 621 step of the 62 sealing table is used for installing the 5-flow barrel sealing ring, the 5-flow barrel sealing ring is in interference fit with the inner wall of the 12 wastewater channel to form a sealing space, and the 621 step top of the 62 sealing table is in cooperation limit with the 45-flow barrel opening of the 4-flow barrel; the sealing platform 62 is connected with the water guide ring 63, the water guide ring 63 is of a cylindrical structure with the outer diameter smaller than that of the step 621 of the sealing platform 62, the water guide ring is composed of a 631 base and a 632 water dividing column, the 632 water dividing column is a plurality of small semi-cylinders uniformly arranged on the upper portion of the 631 base at intervals, water flow is conveniently discharged and enters the 41 flow barrel, semicircular cambered surfaces of the 632 water dividing column are all inwards, resistance of the sealing ring 73 sliding rods is reduced, and 6321 chamfers are arranged at the top ends of the 632 water dividing columns, so that the water guide ring is convenient to assemble and can not scratch other accessories.
As shown in fig. 10, in the low-pressure water inlet anti-blocking wastewater electromagnetic valve according to the embodiment, a 7 anti-blocking mechanism is formed by a 71 sliding rod, a 72-flow needle and a 73 sliding rod sealing ring, the 71 sliding rod is an injection molding piece comprising a 713 boss, a 712 spring positioning table and a 711 sliding rod body, the 711 sliding rod body is a cylinder, a 7111 sealing groove is arranged in the middle of the 711 sliding rod body, a 7112 separation table is arranged in the middle of the 7111 sealing groove and is used for separating and limiting the 73 sliding rod sealing ring, one end of the 711 sliding rod body is connected with the 712-spring positioning table, and the 713 boss is arranged in the center of the 712-spring positioning table and is used for reinforcing the 72-flow needle; the 72 flow needle is a stainless steel rod, one end of the 711 embedded slide rod body is bent, and the end of the 711 embedded slide rod body is directly embedded into the 71 injection molding slide rod during the injection molding of the 71 slide rod, and the 71 injection molding slide rod is integrated with the 71 injection molding slide rod; and 73 sliding rod sealing rings are arranged in the 7111 sealing grooves and are tightly matched with the inner walls of the 6 guide sleeves.
The embodiment is a low-pressure water inlet anti-blocking waste water electromagnetic valve, wherein the top and the bottom of an 8 anti-blocking spring are provided with a circle of parallel rings, and the phenomenon of inclination during installation is prevented.
The present embodiment is provided for illustrating the present invention and not for limiting the present invention, and those skilled in the art may make corresponding modifications and variations within the spirit and scope of the present invention, so any equivalent embodiment falls within the scope of the present invention.
Claims (3)
1. A low-pressure water inlet anti-blocking waste water electromagnetic valve is characterized in that: the valve body is of a vertical-intercommunication T-shaped double-flow-channel structure, the main flow channel is a cylindrical flow channel penetrating through the valve body, two ends of the main flow channel are respectively provided with a water inlet and a water outlet, the waste water flow channel is vertical to the main flow channel, the main flow channel is intersected at a water sealing port, when the electromagnetic valve is closed, the water sealing port is blocked by the sealing-ring assembly, the top of the waste water flow channel is provided with a waste water inflow hole, water in the valve body flows into the waste water flow channel through the waste water inflow hole, the end face of the waste water flow channel is provided with a gland with the sealing-cover, the waste water flow channel is internally provided with a flow barrel, a semicircular arc fixing block at the bottom of the flow barrel is matched and fixed with a limiting table in the valve body to prevent the flow barrel from rotating in the waste water flow channel, the flow barrel is internally provided with a guide sleeve, the guide sleeve is loosely arranged in the barrel, the sealing table of the guide sleeve is provided with the flow barrel sealing ring in an interference fit manner with the inner surface of the waste water flow channel; the guide sleeve is internally provided with a sliding rod capable of moving along with the variation of water pressure, the middle section of the sliding rod body is provided with a groove serving as a sealing groove for installing a sliding rod sealing ring, the sliding rod sealing ring is tightly matched with the inner wall of a water guide ring of the guide sleeve, the sliding rod with the sliding rod sealing ring moves back and forth in the guide sleeve along with the variation of the water pressure formed by opening and closing of the electromagnetic valve, water flows uniformly and stably enter the barrel body of the flow barrel by utilizing the water dividing column of the guide sleeve, and the water flow noise is small; one end of the sliding rod and the flow needle are molded into a whole, scale or tiny impurities in the wastewater outlet hole can be removed by the forward and backward movement of the flow needle, the water flow is kept smooth, and meanwhile, a narrow channel is formed between the flow needle and the wastewater outlet hole, so that uniform and stable small flow is realized, and the water flow finally enters the water outlet of the valve body; when the electromagnetic valve is electrified, the coil generates electromagnetic attraction to drive the iron core to lift upwards, so as to drive the sealing ring assembly at the water sealing port of the valve body to lift upwards to the guide rod, water vertically enters the water outlet of the main flow channel downwards from the water sealing port of the valve body, the water pressure in the waste water flow channel suddenly drops, the water pressure in the flow barrel is reduced, and the rebound force of the anti-blocking spring pushes the sliding rod to the bottom of the guide sleeve; the flow barrel is a cylindrical barrel loosely matched with the waste water flow passage and comprises a barrel body, a spring positioning groove, a correcting hole and a semicircular arc fixing block, wherein the spring positioning groove is a cylindrical groove with a boss and is used for correcting and fixing an anti-blocking spring, the correcting hole with a large chamfer structure is arranged behind the spring positioning groove and is used for guiding a flow needle to prevent the flow needle from inclining, a small through hole at the tail end of the correcting hole is a waste water outlet hole and is communicated with a water outlet of a valve body, and the semicircular arc fixing block is arranged on the outer side of the bottom of the barrel body of the flow barrel and is matched with a limiting table of the valve body to prevent the flow barrel from rotating or inclining; an inward notch serving as a limiting ring is arranged at the inlet of the barrel body of the flow barrel and is matched with the guide sleeve; the guide sleeve consists of a water inlet plate, a sealing table, a water guide ring and a cross hole, wherein the water inlet plate is a disc with the middle provided with the cross hole, the water inlet plate is connected with the sealing table, the sealing table is of a cylindrical step structure, the outer diameter of the bottom of the sealing table is larger than that of the water inlet plate, the sealing table is in clearance fit with the inner diameter of the wastewater flow channel, the step of the sealing table is used for installing the flow barrel sealing ring, the flow barrel sealing ring is in interference fit with the inner wall of the wastewater flow channel to form a sealing space, and the top of the step of the sealing table is in fit limit with a limiting ring of a bung hole of the flow barrel; the sealing table is connected with the water guide ring, the water guide ring is of a cylindrical structure with the outer diameter smaller than that of a step of the sealing table, the water guide ring is composed of a base and water diversion columns, the water diversion columns are a plurality of small semi-cylinders uniformly arranged at the upper part of the base at intervals, water flow is conveniently discharged into the flow barrel, semicircular cambered surfaces of the water diversion columns are all inwards, the resistance to a sliding rod sealing ring is favorably reduced, and chamfers are arranged at the top ends of the water diversion columns, so that the water guide ring is convenient to assemble and can not scratch other accessories; the sliding rod is an injection molding piece comprising a boss, a spring positioning table, a sealing groove and a sliding rod body, wherein the sliding rod body is a cylinder, the middle of the sliding rod body is provided with the sealing groove, the middle of the sealing groove is provided with a separation table used for separating and limiting a sliding rod sealing ring, one end of the sliding rod body is connected with the cylindrical spring positioning table, and the center of the spring positioning table is provided with a boss used for reinforcing a flow needle; the flow needle is a stainless steel rod, one end embedded into the sliding rod body is bent, and the flow needle is directly embedded into one end of the sliding rod body when the sliding rod is injection molded and is integrally injection molded with the sliding rod; the sliding rod sealing ring is arranged in the sealing groove and is tightly matched with the inner wall of the guide sleeve.
2. The low pressure water inlet anti-blocking waste water solenoid valve according to claim 1, wherein: the gland consists of a body and a locating piece, the body is of an injection molding columnar hollow structure with steps and comprises a fastening end, a sealing groove and a guiding end, the fastening end is in interference fit with the inner diameter of the waste water flow channel, the locating piece is arranged on the fastening end and is a stainless steel ring uniformly provided with a plurality of small teeth, the fastening end is directly embedded into the gland during injection molding, an embedded integrated structure is formed between the gland and the fastening end, a circle of uniform positioning protruding small teeth is formed on the fastening end, and when the gland is forcedly reversely buckled into the waste water flow channel of the valve body, the gland can bear higher pressure and is convenient to install and firm; the seal groove is used for installing the gland sealing ring, the outer diameter of the guide end is smaller than that of the fastening end, the seal groove and the edge of the guide end are provided with chamfers, the gland sealing ring is convenient to assemble, and a hollow feed stealing groove is arranged in the gland.
3. The low pressure water inlet anti-blocking waste water solenoid valve according to claim 1, wherein: wherein, the top and the bottom of the anti-blocking spring are provided with a circle of parallel rings, which prevents the phenomenon of deflection during installation.
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| CN109654237B true CN109654237B (en) | 2024-03-15 |
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| KR200396817Y1 (en) * | 2005-06-30 | 2005-09-27 | 대림통상 주식회사 | Liquid control valve |
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