CN206159592U

CN206159592U - Normal close formula electric two way valve

Info

Publication number: CN206159592U
Application number: CN201621128017.6U
Authority: CN
Inventors: 周晓普; 楼型桥
Original assignee: Ningbo Amico Copper Valves Manufacturing Co Ltd
Current assignee: Ningbo Amico Copper Valves Manufacturing Co Ltd
Priority date: 2016-10-17
Filing date: 2016-10-17
Publication date: 2017-05-10
Anticipated expiration: 2026-10-17

Abstract

The utility model discloses a normal close formula electric two way valve relates to the warm valve class technical field that leads to, and is applicable in the terminal air conditioning equipment of heating ventilation air conditioning system, like air -conditioning box, fresh air unit, air handler's etc. Temperature control, its structure contains two parts, two -port valve and electric actuator promptly, and two -port valve wherein comprises valve body, valve gap, case, spring, valve rod and valve clack etc to establish formula structure as an organic whole with the case, the sealed installation of opening and close and having made things convenient for the spring with the valve clack can be undertaken simultaneously to the case of this kind of integral type structure, in addition, adopt the normal close structure between valve clack and the case, then after the electric actuator outage, the valve is pushed away and self return to closed condition by can on the spring top to the mesh of energy consumption is practiced thrift in better realization, electric two way valve after the improvement still has advantages such as compact structure, the assembly is simple, the manufacturing is convenient.

Description

Normally closed type electric two-way valve

Technical field

The utility model is related to the electric two-way valve in a kind of HVAC valve type technical field, more particularly to a kind of normally closed type Electric two-way valve.

Background technology

Electric two-way valve is the one kind in many pipeline valves, and heating ventilation air-conditioning system tail end air conditioner equipment is applied to mostly, The such as temperature control of air-conditioning box, Fresh air handling units, air processing machine, its structure mainly comprising two parts, i.e. YE and Two-port valve；Wherein, YE typically adopts synchronous machine drives, possesses spring reset and manual valve opening lever control work( Energy；Two-port valve is typically made up of valve body, valve gap, valve rod, spring, flap and valve rod etc..In actually used, electric two-way valve can be with Temperature sensor matches, by temperature sensor control YE work, so as to the valve rod for driving two-port valve is lifted, and then Flap synchronization lifting and keying valve seat in sealing contact are driven, that is, realizes the switch of two-port valve, also achieve pipeline cold water or heat The break-make of water, then blown by fan coil, to realize automatically adjusting for temperature, because electric two-way valve is mainly by electronic Actuator and temperature sensor can rationally utilize energy controlling the rate-of flow and temperature of each loop, reach it is energy-saving, The purpose of intelligent management.

At present, the valve element of electric two-way valve is all only to undertake to coordinate with flap using non-Unitary structure, i.e. valve element to open and close Effect, and be used for the spring of flap reset be provided separately within valve body or valve gap in, this not only causes structure design Complexity, increased the assembly difficulty of spring, and manufacture also cumbersome.In addition, common electric two-way valve is all adopted Open type structure is used, is directly to open between flap and valve element after YE power-off, also result in valve in opening Open state；However, the valve of normally closed structure is but wished in the heating ventilation air-conditioning system of part, and after YE power-off, valve Door is at closed mode, so as to preferably realize the purpose of saving energy consumption.

The content of the invention

Technical problem to be solved in the utility model be overcome prior art defect and provide a kind of compact conformation, Simple, the easily manufactured normally closed type electric two-way valve of assembling.

Technical problem of the present utility model is achieved through the following technical solutions：

A kind of normally closed type electric two-way valve, including the valve body with water inlet and delivery port, the valve gap of body top, valve gap Valve element and lifting in the YE at top, valve body and valve gap is movably arranged on the valve rod in valve element, and the valve rod upper end connects It is connected on YE, valve rod lower end is provided with flap, described valve element is set to integral structure, the valve element of the integral structure Top is set to stretch into the spring cavity in valve gap, and valve element lower seal is arranged in valve body, and bottom be respectively provided on two sides with connect into The inlet opening at the mouth of a river and the apopore for connecting delivery port, into and out of being provided with seal receptacle between water hole；Described flap is located at sealing Seat lower section, and driven by valve rod and form sealing with the seal receptacle and open and close.

Spring is provided with described spring cavity, in spring cavity, upper end pushing installation is in valve for the lower spring end pushing installation On bar；Described valve rod is driven flap to form normally closed structure with the seal receptacle by spring push.

Described spring cavity is a counterbore, and the bottom hole of the counterbore is provided with upwardly extending lower spring cup, described spring Lower end pushing installation is on lower spring cup；The aperture of the counterbore is provided with upper spring seat of the thrust on valve rod, described bullet Spring upper end pushing installation is on upper spring seat.

Thrust mounting structure of the described upper spring seat on valve rod is to be provided with to be fixedly mounted on valve above upper spring seat Slotted collar on bar.

Described inlet opening and the cross section of apopore is in fan shape.

Sealing installation structure of the valve element bottom of described integral structure in valve body is on valve element lower outer circumferential face " Z " type groove is provided with, U-shaped sealing ring, and the U-shaped sealing ring at the top of " Z " type groove and the valve body should be embedded with " Z " type groove Upper lumen wall make in sealing contact, seal with the lower lumen wall of the valve body positioned at the U-shaped sealing ring of " Z " type groove bottom Contact.

It is threadedly coupled as kink between described YE bottom and valve gap top.

Compared with prior art, valve element is mainly set to integral structure by the utility model, this integral structure Valve element can simultaneously undertake and open and close and facilitate the installation of spring with the sealing of flap；In addition, using normal between flap and valve element Structure is closed, then after YE power-off, valve can be by spring push and self-return to closed mode, so as to more preferable reality The purpose of existing saving energy consumption；Electric two-way valve after improvement also has the advantages that compact conformation, assembles simple, easily manufactured.

Description of the drawings

Fig. 1 is cross section structure diagram of the present utility model.

Fig. 2 is the structural representation of valve element.

Fig. 3 is the stereogram of Fig. 2.

Specific embodiment

The utility model embodiment will again be elaborated by above-mentioned accompanying drawing below.

As shown in Fig. 1 ~ Fig. 3,1. valve body, 3. 2.U type sealing rings, flap seat, 4. flap, 5. valve rod, 6. valve element, 61. bullets Spring chamber, 62. lower spring cups, 63. seal receptacles, 64. inlet openings, 65. apopores, 7. 66. " Z " type grooves, valve gap, the 8. sealing of " O " type Circle, 9. spring, 10. upper spring seat, 11. slotted collars, 12. YEs.

Normally closed type electric two-way valve, as shown in figure 1, belonging to HVAC valve type technical field, is primarily adapted for use in HVAC System end air-conditioning equipment, such as air-conditioning box, Fresh air handling units, the temperature control of air processing machine, its structure includes two parts, i.e., Two-port valve and YE 12.

Wherein, two-port valve is made up of valve body 1, valve gap 7, valve element 6, valve rod 5 and flap 4 etc.；It is provided with described valve body 1 The water inlet and delivery port of horizontal insertion, can facilitate the circulation of liquid medium, entery and delivery port to adopt silk mouth attachment structure, can make The more reliable connection of valve is on the tubing；Described valve gap 7 is threadedly attached in the installing port at the top of valve body 1, valve It is provided with " O " type sealing ring 8 between lid 7 and valve body 1 to make connection sealing；The described bottom of YE 12 is provided with screw thread work Set, therefore installation is fixed by way of kink is threadedly coupled between the top of valve gap 7.

Meanwhile, valve element 6 is arranged in valve body 1 and valve gap 7, and valve rod 5 is then lifted and is movably arranged in valve element 6, and valve rod 5 Upper end is connected on YE 12 through valve element 6 and valve gap 7, and " O " type sealing ring 8 is additionally provided between valve rod 5 and valve gap 7 As dynamic seal, then when YE 12 starts, valve rod 5 can be just driven to move down；Valve rod lower end is provided with fixed peace The flap seat 3 and flap 4 of dress.

Described valve element 6 employs in the present embodiment the valve element top of integral structure, i.e. integral structure and is set to stretch Enter the spring cavity 61 in valve gap 7, the spring cavity is the counterbore that spring 9 is set in, is provided with upwardly extending in the bottom hole of counterbore Lower spring cup 62, and the lower end pushing installation of spring 9 is on lower spring cup 62；In the aperture of counterbore thrust is provided with installed in valve rod 5 On upper spring seat 10, and the upper end pushing installation of spring 9 is on upper spring seat 10；Therefore, valve is caused by the pushing tow of spring 9 under normality Bar 5 possesses all the time the trend for moving up.In addition, thrust mounting structure of the upper spring seat 10 on valve rod 5 is in upper spring seat Top is provided with the slotted collar 11 being fixedly mounted on valve rod 5, then upper spring seat 10 is limited without along valve by slotted collar 11 Bar 5 is moved up.

The described lower seal of valve element 6 is arranged in valve body 1, and its sealing structure is：The lower outer circumferential face of valve element 6 is provided with " Z " type groove 66 as shown in Figure 2 and Figure 3, should be embedded with U-shaped sealing ring 2 in " Z " type groove, and positioned at the U-shaped of the top of " Z " type groove 66 Sealing ring 2 makees in sealing contact with the upper lumen wall of valve body 1, under the U-shaped sealing ring 2 and valve body 1 of the bottom of " Z " type groove 66 Portion's internal chamber wall makees in sealing contact.

The described bottom of valve element 6 is respectively provided on two sides with the inlet opening 64 of connection water inlet and the apopore for connecting delivery port 65, the cross section of the inlet opening 64 and apopore 65 is in fan shape, into and out of the seal receptacle that circular hole is provided between water hole 63；Described flap 4 is located at the lower section of seal receptacle 63, can be driven by valve rod 5 and form sealing with seal receptacle 63 and open and close.

The utility model is caused valve rod 5 to move up when YE 12 does not work by the pushing tow of spring 9, and then band Dynamic flap 4 is in close contact on seal receptacle 63, i.e., the valve under normality is closed type structure；When YE 12 works, just Valve rod 5 can be driven to move down, then flap 4 departs from seal receptacle 63, i.e. valve in open mode.

The above is only specific embodiment of the utility model, it should be appreciated by those skilled in the art that any and reality The structure design of example equivalent is applied, be should be included within protection domain of the present utility model.

Claims

1. a kind of normally closed type electric two-way valve, including the valve body with water inlet and delivery port（1）, body top valve gap（7）、 YE at the top of valve gap（12）, valve body（1）And valve gap（7）Interior valve element（6）And lifting is movably arranged on valve element（6） Interior valve rod（5）, the valve rod upper end is connected to YE（12）On, valve rod lower end is provided with flap（4）, it is characterised in that institute The valve element stated（6）Integral structure is set to, the valve element of the integral structure（6）Top is set to stretch into valve gap（7）Interior spring cavity （61）, valve element（6）Lower seal is arranged on valve body（1）It is interior, and bottom is respectively provided on two sides with the inlet opening of connection water inlet（64） With the apopore for connecting delivery port（65）, into and out of being provided with seal receptacle between water hole（63）；Described flap（4）Positioned at sealing Seat（63）Lower section, and by valve rod（5）Drive and with the seal receptacle（63）Form sealing to open and close.

2. normally closed type electric two-way valve according to claim 1, it is characterised in that described spring cavity（61）Inside it is provided with bullet Spring（9）, the lower spring end pushing installation is in spring cavity（61）Interior, upper end pushing installation is in valve rod（5）On；Described valve rod receives bullet Spring（9）Pushing tow and drive flap（4）With the seal receptacle（63）Form normally closed structure.

3. normally closed type electric two-way valve according to claim 2, it is characterised in that described spring cavity（61）It is one to sink Hole, the bottom hole of the counterbore is provided with upwardly extending lower spring cup（62）, described spring（9）Lower end pushing installation is in lower spring cup （62）On；The aperture of the counterbore is provided with thrust installed in valve rod（5）On upper spring seat（10）, described spring（9）Push up upper end Push away installed in upper spring seat（10）On.

4. normally closed type electric two-way valve according to claim 3, it is characterised in that described upper spring seat（10）In valve rod （5）On thrust mounting structure be in upper spring seat（10）Top is provided with and is fixedly mounted on valve rod（5）On slotted collar（11）.

5. normally closed type electric two-way valve according to claim 1, it is characterised in that described inlet opening（64）And apopore （65）Cross section be in fan shape.

6. normally closed type electric two-way valve according to claim 1, it is characterised in that the valve element of described integral structure（6） Bottom is in valve body（1）Interior sealing installation structure is valve element（6）Lower outer circumferential face is provided with " Z " type groove（66）, should " Z " type groove Inside it is embedded with U-shaped sealing ring（2）, and positioned at " Z " type groove（66）The U-shaped sealing ring at top（2）With the valve body（1）Top in Cavity wall makees in sealing contact, positioned at " Z " type groove（66）The U-shaped sealing ring of bottom（2）With the valve body（1）Lower lumen wall make close Sealing-in is touched.

7. normally closed type electric two-way valve according to claim 1, it is characterised in that described YE（12）Bottom With valve gap（7）Make kink threaded connection between top.