CN2167249Y - Valve adapted for water heating apparatus with single knob - Google Patents

Abstract

The utility model relates to a valve adapted for a water heating apparatus with a single knob, which has the double functions of a switch and the temperature regulation. The utility model is characterized in that a cold water inlet has the conformation of a stop valve, two sliding holes are arranged in the valve body along the axial direction, and a cold water and a hot water regulating sliding plugs which are corresponding to the sliding holes are arranged on the same valve shaft. The utility model has the advantages of simple structure, simple requirement of the machining accuracy, convenient use, good seal performance, great temperature regulating performance, etc.

Description

Valve adapted for water heating apparatus with single knob

The utility model relates to the improvement of water heater water distribution valve.

At present commercially available or follow-on water heater water distribution valve all has two knobs, and the probability that it leaks is than single doubling, thereby needs to improve machining accuracy, appearances of leaking when even so also unavoidable, and also water temperature regulates inconvenience, generally reflects not handy.

The purpose of this utility model is in order to overcome the deficiency of above-mentioned prior art, and a kind of single knob water heater water distribution valve is provided, and has switch and temperature adjustment dual functions concurrently, and sealing and temperature adjusting performance are all good.

The purpose of this utility model realizes by following technical characteristics: two ends of valve body respectively is equipped with threaded cock and valve gap, valve body is having cooling water inlet near cock place, this place has the structure of stop valve, promptly valve opening seat (matching with the flap on the valve shaft) is arranged with the valve body coaxial line, adjacent valve opening seat has cooling water outlet (entering water heater), adjacent valve gap has hot water inlet, and there is the warm water outlet in central authorities, and respectively there is a slide opening its both sides vertically at body cavity; The end of valve shaft is a square pole, be inserted in the square hole of cock, corresponding to the valve opening seat, flap is housed on the valve shaft, it is by packing ring, sealing gasket and limb are formed, be locked on the valve shaft with nut, the middle part of valve shaft has cold corresponding to two slide openings, hot water is regulated sliding plug, it is made up of column part and change section part, cold, hot water regulate sliding plug column part each with valve body in its corresponding slide opening slippery, it becomes the conicoid shape that section part is made evagination, two sliding small ends (sliding plug can or be enclosed within on the valve shaft with the valve shaft disjunctor) in opposite directions of filling in, the other end of valve shaft has thread section to stretch out in outside the valve gap to match with nut, and the nut profile side of being (or polygonal) shape embeds in the hole, side (or polygonal) of knob.

Because cooling water inlet adopts the structure of stop valve, its sealing is good, and its sealing gasket is easy to repair and changes, leaking for the nothing of this valve provides reliable assurance, simultaneously cold, hot water is regulated sliding plug and can be made excessive demands with the quality of fit of slide opening, thereby can reduce cost and increase the service life, cold, the ratio of hot water can be regulated in the broad range of 100:0～0:100, and the change section part of sliding protruding conicoid shape beyond the Great Wall can make the adjusting of water temperature approach linearity, so this valve has simple in structure, easy to use, temperature adjustment and sealability are held concurrently excellent, and for ease of maintenaince wait characteristics.

Further specify below in conjunction with embodiment and accompanying drawing.

Fig. 1 is the main sectional view (being in closed condition) of this single knob water heater water distribution valve.

Among Fig. 1, cock 18 and valve gap 1(and sealing gasket 17 respectively are equipped with in the two ends of valve body 25), near cock 18 cooling water inlet 16 is arranged on valve body 25, this is in valve body 25 same axis valve seat orifice 13, adjacent it cooling water outlet 12 is arranged, adjacent valve gap 1 has hot water inlet 4, and there is warm water mouth 27 at the middle part, and valve pocket 8 both sides vertically respectively has slide opening 7 and slide opening 26; The end of valve shaft 9 is a square pole 20, be inserted in the square hole 19 of cock 18, corresponding to valve seat orifice 13, on the valve shaft 9 flap is housed, it is by packing ring 23, sealing gasket 22 and limb 14 are formed, be locked on the valve shaft 9 with nut 21, there is the sliding plug 5 of hot water at valve shaft 9 middle parts corresponding to the position of slide opening 7, there is the sliding plug 11 of cold water position corresponding to slide opening 26, sliding plug 5 or 11 is formed by column part and change section part 6 or 10, the column part of sliding plug 5 or 11 and slide opening 7 or 26 sliding joining, sliding plug 5,11 change section part 6 and 10 is all made the conicoid shape of evagination, and the small end of sliding plug 5 and 11 in opposite directions, the other end of valve shaft 9 has thread section 31 to stretch out in outside the valve gap 1 to match with nut 29, the profile of nut 29 is square, embeds in the square hole of knob 30, and 1 of valve shaft 9 and valve gap have stuffing box packing 2 and gland 3.

Because nut 29 is blocked axial limiting by knob 30 and valve gap 1, and the square end 20 of valve shaft 9 is limited by cock 18, so during turning knob 30, valve shaft 9 can not rotate and can only move axially, knob 30 is when the limit position of dextrorotation, sealing gasket 22 is sealed valve seat orifice 13, cuts off water inlet, and whole valve is in full-shut position; When knob 30 is left-handed, valve shaft 9 moves to the direction of cock 18, valve seat orifice 13 is opened, cold water is through the chamber 15, in valve seat orifice 13 inflow chambers 24, this moment, the column part of sliding plug 11 did not break away from slide opening 26 as yet, cold water can not enter in the chamber 8, can only enter water heater (cooling water outlet 12 and hot water inlet 4 are communicated with water heater respectively) by cooling water outlet 12, hot water then from hot water inlet 4 through the chamber 28, slide opening 7 flows to warm water mouth 27, so what flow out is hot water entirely, continues left-handed, the column part disengaging slide opening 26 of sliding plug 11, becoming section part 10 withdraws from slide opening 26 gradually, the flow that makes cold water enter chamber 8 increases gradually, and the change section part 6 of sliding plug 5 progresses into slide opening 7 simultaneously, makes hot water flow gradually little, the water temperature of warm water mouth 27 descends gradually, at left-handed limit position, the column part of sliding plug 5 enters in the slide opening 6, and sliding plug 11 all withdraws from slide opening 26, hot water all cuts off, the cold water standard-sized sheet; During dextrorotation, situation is just in time with above-mentioned opposite.

Claims (1)

1, a kind of single knob water heater water distribution valve, comprise: valve body, spool, valve shaft, valve gap, knob, adjusting screw pair and seal arrangement, it is characterized in that: two ends of valve body respectively is equipped with threaded cock and valve gap, valve body is having cooling water inlet near cock place, this place has the structure of stop valve, promptly with the valve body coaxial line have with valve shaft on the valve opening seat that matches of flap, adjacent valve opening seat has the cooling water outlet of logical water heater, adjacent valve gap has hot water inlet, there is the warm water outlet in central authorities, and respectively there is a slide opening its both sides vertically at body cavity; The end of valve shaft is a square pole, be inserted in the square hole of cock, corresponding to the valve opening seat, flap is housed on the valve shaft, it is by packing ring, sealing gasket and limb are formed, be locked on the valve shaft with nut, the middle part of valve shaft has cold corresponding to two slide openings, hot water is regulated sliding plug, and it is made up of column part and change section part, and is cold, hot water regulate sliding plug column part each with valve body in its corresponding slide opening slippery, it becomes the conicoid shape that section part is made evagination, two sliding plug small ends in opposite directions, the other end of valve shaft has thread section to stretch out in outside the valve gap to match with nut, the nut profile is a polygon, for well, nut embeds in the hole that matches with it of knob with square.