CN201037558Y

CN201037558Y - Constant temperature tap

Info

Publication number: CN201037558Y
Application number: CNU2007201101823U
Authority: CN
Inventors: 张宝腾
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-06-07
Filing date: 2007-06-07
Publication date: 2008-03-19
Anticipated expiration: 2017-06-07

Abstract

A plastic constant temperature tap comprises a casing having a cold water inlet, a hot water inlet and a mixed water outlet, a thermal valve which is arranged inside the casing and is provided with a thermal valve core assembly, and a switch valve communicated with the thermal valve, wherein the cold water inlet is connected with a cold water passage, the hot water inlet is connected with a hot water passage, and a cold water one-way valve and a hot water one-way valve are respectively arranged on the cold water passage and the hot water passage. The utility model is characterized in that: the cold and hot water one-way valves are both horizontally and laterally arranged on the cold and hot water passages. The utility model adopts the structure that the one-way valves are horizontally and laterally arranged at the cold and hot water inlets, thereby ensuring the cold water passage and the hot water passage to become horizontal passages with simpler structure and easier manufacture. The horizontal one-way valves can reduce water flow resistance, be opened by lower water pressure when cold or hot water flows in, and ensure that stable water flow outputs from the water outlet, thereby achieving steadier and more reliable operation of the constant temperature tap under lower water pressure.

Description

A kind of constant-temperature water faucet

Technical field

The utility model relates to a kind of water tap, answers water temperature to change to come the constant-temperature water faucet of control water temperature but particularly relate to a kind of order innervation.

Background technique

For travelling comfort and the Security that improves bathing, various constant-temperature tap has appearred already on the existing market, it comprises the housing that has hot water or cold water's import and mixed water exports, thermostatic valve and switch valve are installed in housing, wherein, thermostatic valve is set handle by constant temperature valve core assembly and temperature and is formed the temperature-sensitive moving valve core that the constant temperature valve core assembly comprises valve pocket again, is connected to the valve gap and the valve seat of valve pocket two-port and is positioned at valve pocket.During use, set required water temperature by temperature transducer, when the mixing water temperature in entering valve pocket departs from setting temperature, inductive rod expanded by heating in the temperature-sensitive moving valve core or meet cold contraction, force the temperature-sensitive moving valve core to move, with this size of regulating the hot and cold mouth of a river on the sleeve side wall, make the temperature of mixing water be in setting temperature all the time.

Above-mentioned constant-temperature water faucet all is provided with one-way valve in hot water or cold water inlet, cold water and hot water flow into from hot water or cold water inlet respectively, one-way valve opens under hydraulic action, hot and cold water are mixed will the suit water of water temperature of back and the adjusting by the temperature-sensitive moving valve core and are sent from mixed water exports.At present, the one-way valve that cooling water inlet and hot water inlet are arranged mostly is the vertical setting of vertical shell axial direction, be that water flows into from water intake, from bottom to top one-way valve is backed down, the one-way valve of this setup often needs to overcome the effect of the gravity of water own when work, when hydraulic pressure is less the phenomenon that one-way valve can't back down may take place, thereby make the flow instability that blends the mouth of a river, therefore await to improve.

Summary of the invention

Technical problem to be solved in the utility model is the present situation at prior art, provides a kind of rational in infrastructure, and the current of water outlet are more steady, smooth and easy, and the constant-temperature water faucet of low hydraulic pressure, big flow.

The utility model solves the problems of the technologies described above the technological scheme that is adopted: this constant-temperature water faucet, it comprises the housing that has cooling water inlet, hot water inlet and mixed water exports, the thermostatic valve of band constant temperature valve core assembly is installed in housing and passes through the switch valve of connection with thermostatic valve, wherein, cooling water inlet is connected with cold water channel, hot water inlet is connected with the hot water channel, be respectively arranged with hot water or cold water's one-way valve on hot water or cold water's passage, it is characterized in that: described hot water or cold water's one-way valve is on the passage that transverse horizontal is placed on hot water or cold water's import.

Described constant temperature valve core assembly can adopt existing various technological schemes, be preferably the constant temperature valve core assembly that adopts following structure, the temperature-sensitive moving valve core that it comprises valve pocket, lays respectively at the valve gap and the valve seat of valve pocket two-port and be positioned at valve pocket, described sleeve side wall outer surface is provided with the upper, middle and lower seal groove, be embedded with seal ring in each seal groove, be positioned at simultaneously on the sleeve side wall of intermediate seal groove upper and lower and also have cold water outlet and hot water mouth.

Described hot water or cold water's passage can be different shape, and, needs are arranged on housing diverse location place according to being installed, simply, described cold water channel is the horizontal channel, and be arranged between the cold water outlet of cooling water inlet to the described valve pocket, described hot water channel is the horizontal channel, and is arranged between the hot water mouth of hot water inlet to the described valve pocket.

Described temperature-sensitive moving valve core comprises piston and the inductive rod and the valve rod of can regulate cold water outlet, hot water mouth's size, be axially arranged with tapped hole and axial exhalant canal on the described piston, tapped hole bolt on inductive rod and the piston, and an end of this inductive rod flexibly connects mutually with described valve rod after passing this tapped hole.Adopt such scheme, simple in structure, reliable operation certainly, also can adopt other conventional temperature-sensitive moving valve core.

Compared with prior art, because the utility model has adopted transverse horizontal that the structure of hot water or cold water water inlet one-way valve is set, make cold water channel and hot water channel become the horizontal channel, channel design is more simple, makes things convenient for manufacturing.And, one-way valve is horizontally disposed with, and can reduce the flow resistance of water, can be with lower hydraulic pressure just with one-way valve opens when helping the hot water or cold water and flowing into, current flow out to have guaranteed have comparatively stably in the water outlet place, thereby make that the more stable work of whole constant-temperature water faucet under low hydraulic pressure is reliable.

Description of drawings

Fig. 1 is the utility model embodiment's a structural representation.

Fig. 2 is the sectional view (working principle schematic representation) of Fig. 1.

Fig. 3 is that A-A among Fig. 1 is to sectional view.

Fig. 4 is the sectional view of the utility model constant temperature valve core assembly.

Embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

Fig. 1～shown in Figure 3, it is the specific embodiment that a bigeminy is secretly put the formula constant-temperature water faucet, this constant-temperature water faucet comprises the housing 21 that has cooling water inlet 28, hot water inlet 25 and mixed water exports 23, the thermostatic valve a and the switch valve b of band constant temperature valve core assembly are installed in housing 21, and the operation handwheel of thermostatic valve a and switch valve b all is positioned on the panel 22.Be provided with cold water channel 27 between the cold water outlet 11 of cooling water inlet 28 to the valve pocket, in this cold water channel, be placed with cold water one-way valve assembly 30; Equally, between the hot water mouth 9 of hot water inlet 25 to the valve pocket, be provided with hot water channel 26, also be placed with hot water one-way valve 29 among the hot water channel.In the present embodiment, described cold water one-way valve 30, hot water one-way valve 29 are on the passage that transverse horizontal is placed on cooling water inlet 28, hot water inlet 25,

cold water channel

27,26 of hot water channels lay respectively at the both sides of housing 1 and dislocation layout up and down, and both center lines then become 90 degree respectively with described housing axis.

As shown in Figure 4, described constant temperature valve core assembly comprises valve pocket 1, valve gap 2, valve seat 6 and the temperature-sensitive moving valve core of being made by brass, wherein, on valve pocket 1 sidewall outer surface, be provided with three the horizontal

annular seal grooves

3,4,5 in upper, middle and lower, be embedded with seal ring 8 in each seal groove, and be positioned on the sleeve side wall of intermediate seal groove 4 upper and lowers and have cold water outlet 11 and hot water mouth 9.Valve gap 2 and valve seat 6 are threaded in respectively in the two-port of above-mentioned valve pocket 1, and the middle part of valve gap 2 is provided with penetration hole 19, so that the outflow of mixing water is provided with the swing arm assembly that temperature is set handle in the valve seat 6.

Above-mentioned temperature-sensitive moving valve core comprises piston 17, inductive rod 20 and valve rod 13 slidably again, and wherein piston 17 is arranged in the valve pocket 1 hermetically, and can move up and down along valve pocket 1 inwall, to regulate cold water outlet 11 and hot water mouth's 9 size as required; Piston 17 middle parts are axially arranged with tapped hole 12, are distributed with a plurality of fan-shaped axial exhalant canals 10 that are around this tapped hole.Inductive rod adopts candlestick, and it is threaded mutually with piston thread hole 12, and after an end passes tapped hole 12, flexibly connects mutually with valve rod 13 routinely.

Be provided with piston spring 18 between above-mentioned valve gap 2 and the piston 17, make piston have trend all the time to valve seat 6 side shiftings.And the upper end portion of valve rod 13 and top cap 14 offset, and top cap 14 links to each other with swing arm 7 by valve core spring 16, swing arm cover 15 again.

As shown in Figure 2, when using this constant-temperature water faucet, rotate and revolve pavilion 7, promote piston 17 by swing arm cover 15, valve core spring 16, top cap 14, valve rod 13, inductive rod 20 successively and move, regulate cold water outlet 11, hot water mouth's 9 size, make temperature be set to required temperature value.At this moment, open switch valve b, hot water flows into from hot water inlet 25, successively flows in the valve pocket 1 behind superheated water one-way valve 29, hot water mouth 9.Simultaneously, cold water flows into from cooling water inlet 28, successively flow in the valve pocket 1 behind supercooled water one-way valve 30, cold water outlet 11, and mix mutually with hot water by the axial exhalant canal 10 on the piston, the penetration hole 19 from valve gap flows to mixed water exports 23 (referring to arrow shown in Figure 2) at last.

When the water temperature of mixing water changes, inductive rod 20 will in time be made a response: when inductive rod 20 expanded by heating, promote valve rod 13, but the other end of valve rod is supported by top cap 14 owing to the effect at valve core spring 16, therefore under reaction force, promote piston 17 by inductive rod 20 and move down, the result diminishes hot water mouth 9, and cold water outlet 11 increases, the water temperature of mixing water descends, and piston spring 18 is compressed simultaneously; Otherwise inductive rod 20 contraction of catching a cold at this moment, under the effect of piston spring 18 restoring forces, moves on the piston 17, and the result diminishes cold water outlet 11, and hot water mouth 9 increases.Obviously, adopt such constant-temperature water faucet, the water temperature at mixed water exports 23 places is remained on the temperature of setting, finally guaranteed Security and the travelling comfort used.

Claims

1. constant-temperature water faucet, it comprises and has cooling water inlet (28), the housing (21) of hot water inlet (25) and mixed water exports (23), the thermostatic valve (a) of band constant temperature valve core assembly is installed in housing and passes through the switch valve (b) of connection with thermostatic valve, wherein, cooling water inlet (28) is connected with cold water channel (27), hot water inlet (25) is connected with hot water channel (26), cold, the hot water channel (27,28) be respectively arranged with cold on, hot water one-way valve (30,29), it is characterized in that: described cold, hot water one-way valve (30,29) being transverse horizontal is placed on cold, hot water inlet (28,25) on the passage.

2. constant-temperature water faucet according to claim 1, it is characterized in that: the temperature-sensitive moving valve core that described constant temperature valve core assembly comprises valve pocket (1), lay respectively at the valve gap (2) of valve pocket two-port and valve seat (6) and be positioned at valve pocket, described sleeve side wall outer surface is provided with upper, middle and lower seal groove (3,4,5), be embedded with seal ring (8) in each seal groove, be positioned at simultaneously on the sleeve side wall of intermediate seal groove upper and lower and also have cold water outlet (11) and hot water mouth (9).

3. constant-temperature water faucet according to claim 2, it is characterized in that: described cold water channel (27) is the horizontal channel, and be arranged between the cold water outlet (11) of cooling water inlet (28) to the described valve pocket (1), described hot water channel (26) is the horizontal channel, and is arranged between the hot water mouth (9) of hot water inlet (25) to the described valve pocket (1).

4. constant-temperature water faucet according to claim 2, it is characterized in that: described temperature-sensitive moving valve core comprises piston (17) and the inductive rod (20) and the valve rod (13) of can regulate cold water outlet (11), hot water mouth (9) size, be axially arranged with tapped hole (12) and axial exhalant canal (10) on the described piston, tapped hole (12) bolt on inductive rod (20) and the piston, and an end of this inductive rod flexibly connects mutually with described valve rod (13) after passing this tapped hole.