CN208252823U - Proportioning valve - Google Patents

Abstract

The utility model discloses a kind of proportioning valves, including shell, adjustment axis and check valve, the water inlet that shell is equipped with inner cavity and is connected to inner cavity, water outlet and discharge outlet, water outlet is set between water inlet and discharge outlet, intake tunnel is equipped between inlet and outlet, adjustment axis is equipped with the control valve being located in intake tunnel, drainage channel is equipped between water outlet and discharge outlet, check valve is set in drainage channel, check valve and adjustment axis are setting up and down in inner cavity, when adjustment axis moves in the lumen, opening for intake tunnel is adjusted in control valve, pass and water flow, when adjustment axis, which is moved to, to be contacted with check valve, adjustment axis can open check valve so that drainage channel is opened.Not only cistern capable of regulating drainage rate makes water termostat out to the proportioning valve, but also the effect of can realize automatic turning off water function, can also be achieved heat exchanger water-drainage antifreezing.

Description

Proportioning valve

Technical field

The utility model relates to valve technology fields, more particularly, to a kind of proportioning valve.

Background technique

Gas-fired equipment such as gas heater and gas-heating water heater etc. are widely used gas appliances, and with people Living standard improve, the requirement to gas-fired equipment also constantly improves.Traditional gas-fired equipment in order to realize out water termostat, It generally can all be equipped with water proportioning valve.In addition, in order to prevent under cryogenic, water-setting is solid to go out the case where internal coil frost broken It is existing, it generally will do it antifreeze processing.Antifreeze processing generally has electrical heating method, manual drainage method.Electrical heating method is exactly with heating electricity Coil pipe is heated in resistance.But with electric heating, on the one hand there are security risks, on the other hand expend electric energy.Manual drainage method, Drain valve mainly is opened manually, the water in gas-fired equipment is discharged.From the foregoing, it will be observed that in order to realize gas-fired equipment water and draining, The component for needing to be equipped with proportioning valve and electric heater or drain valve and other some cooperations, leads to gas-fired equipment structure It is complex, it is cumbersome, influence user experience.

Utility model content

Technical problem to be solved in the utility model is to provide for a kind of proportioning valve, and both cistern capable of regulating drainage rate made to obtain Water termostat, and the effect of can realize automatic turning off water function, can also be achieved heat exchanger water-drainage antifreezing.

Above-mentioned technical problem is solved by the following technical programs:

A kind of proportioning valve, including shell, adjustment axis and check valve, the shell are equipped with inner cavity and in communication with the inner cavity Water inlet, water outlet and discharge outlet, the water outlet are set between the water inlet and the discharge outlet, the water inlet and institute State between water outlet be equipped with intake tunnel, the adjustment axis be equipped be located at the intake tunnel in control valve, it is described go out Drainage channel is equipped between the mouth of a river and the discharge outlet, the check valve is set in the drainage channel, the check valve and institute It is setting up and down in the inner cavity to state adjustment axis, when the adjustment axis moves in the inner cavity, the control valve is adjustable The open and close and water flow for saving the intake tunnel, when the adjustment axis, which is moved to, to be contacted with the check valve, the adjustment axis The check valve can be opened so that the drainage channel is opened.

During moving up and down the size of intake tunnel is adjusted, to adjust in the proportioning valve, adjustment axis therein Water flow makes leaving water temperature reach constant temperature, no longer sometimes hot and sometimes cold.When to be moved upward to an inlet and outlet complete for adjustment axis When full partition, it can completely close into water.When adjustment axis is moved further up, check valve can be opened, by water outlet and row Mouth of a river connection.Water outlet can draw the water body in heat exchanger, be discharged via discharge outlet, carry out water-drainage antifreezing, prevent temperature Water route, which freezes, when low destroys gas-fired equipment.Therefore, gas-fired equipment only needs that constant temperature, Guan Shuihe can be realized using the proportioning valve Water-drainage antifreezing and other effects significantly simplifies the structure of gas-fired equipment, reduces the production cost.

Above-mentioned technical proposal is further described below:

The check valve is set to the top of the discharge outlet in one of the embodiments, and the drainage channel includes position Connection runner between the water outlet and the check valve, the water outlet, the connection runner, the check valve and The discharge outlet is successively docked, and the check valve includes valve seat and spool, and the periphery of the valve seat and the inner cavity are in close contact, The valve seat is equipped with the first pilot hole and the first water hole, and the spool includes baffle and the valve rod on the baffle, institute It states valve rod to be inserted into first pilot hole, when the drainage channel is closed, the baffle closes first water hole； When the drainage channel is opened, the adjustment axis enters first pilot hole and jacks up the valve rod, so that described first Water hole is connected with the connection runner.Said structure design is rationally ingenious, so that adjustment axis can be by list during rising It is opened to valve, and during adjustment axis is mobile, also achieves the effect for adjusting the water flow of drainage channel.

The check valve further includes return springs in one of the embodiments, and the return springs are for driving The baffle is moved downward to offset with the valve seat.During adjustment axis moves down, spool is due to losing upwards Top power, reset can be moved down under the driving of return springs, thus by the first water hole close, drainage channel is closed It is disconnected.

The check valve further includes the valve deck set on the top of the valve seat, the valve deck in one of the embodiments, Periphery and the inner cavity be in close contact, the valve deck be equipped with the second pilot hole and the second water hole, second water hole with First water hole conducting, the water outlet, the connection runner, second water hole, first water hole and The discharge outlet is successively docked, and the spool further includes the locating rod on the baffle, the locating rod and the valve rod It is located at the two sides up and down of the baffle respectively, the locating rod can move up and down in second pilot hole, the reset One end of elastic component offsets with the valve deck, and the other end offsets with the baffle.The setting of valve deck, on the one hand for being spool Lower mobile offer guiding role, guarantees that spool moves in set track, will not deviate, guarantee proportioning valve work safety Reliably；On the other hand supporting point also is provided for dynamic clamping head and quiet clamping head.

First water hole is at least two in one of the embodiments, between at least two first water holes Every the periphery for being set to first pilot hole, for guaranteeing the flow of draining.

The inner cavity is equipped in first between the water inlet and the water outlet in one of the embodiments, The second inner wall between wall and the water outlet and the discharge outlet, the control valve be equipped with for first inner wall The first sealing ring being in close contact, second inner wall are equipped with the second sealing ring for being in close contact with the adjustment axis. First sealing ring is for guaranteeing thoroughly to completely cut off between Guan Shuishi, water outlet and water inlet.On the one hand second sealing ring is used to protect When with water, water body will not flow out card from discharge outlet；On the other hand guarantee in draining, water body can all be discharged from discharge outlet.

First inner wall is equipped with for preventing the control valve from adjusting excessive limit in one of the embodiments, Position portion.

It in one of the embodiments, further include end cap, the end cap is set to the bottom end of the shell, and the end cap is equipped with The threaded hole being threadedly coupled with the adjustment axis.By the cooperation of adjustment axis and end cap, so that rotation adjustment axis can reach drive The effect of dynamic adjustment axis lifting, so that proportioning valve is easy to adjust.

It in one of the embodiments, further include sealing cover, the sealing cover is set to the top of the shell, is used for institute State housing seal.

It in one of the embodiments, further include flow sensor, the flow sensor is set to the water inlet.Stream Quantity sensor is used to detect the flow of water inlet, and the flow information transmitted by flow sensor is come real-time monitoring water flow Amount.

Detailed description of the invention

Fig. 1 is the perspective view of proportioning valve described in an embodiment of the present invention；

Fig. 2 is cross-sectional view of the proportioning valve shown in FIG. 1 under just common water state；

Fig. 3 is cross-sectional view of the proportioning valve shown in FIG. 1 in the case where closing water state；

Fig. 4 is cross-sectional view of the proportioning valve shown in FIG. 1 under hull-borne；

Fig. 5 is the cross-sectional view of the check valve in Fig. 4.

Description of symbols:

110, shell, 111, inner cavity, 112, water inlet, 113, water outlet, 114, discharge outlet, 115, connection runner, 116, Second sealing ring, 117, limiting section, 120, adjustment axis, 121, control valve, the 122, first sealing ring, 130, check valve, 131, Valve seat, the 1311, first pilot hole, the 1312, first water hole, 132, spool, 1321, baffle, 1322, valve rod, 1323, positioning Bar, 133, return springs, 134, valve deck, the 1341, second pilot hole, the 1342, second water hole, 140, flow sensor, 150, end cap, 160, sealing cover.

Specific embodiment

It is below in conjunction with attached drawing and specifically real for the purpose of this utility model, technical solution and advantage is more clearly understood Mode is applied, the utility model is described in further detail.It should be understood that the specific embodiments described herein Only to explain the utility model, the protection scope of the utility model is not limited.

It should be noted that it can be directly anchored to another when element is referred to as " being fixed on " another element On element or another element can also be fixed on by element placed in the middle.When an element be known as " connection " another Element, it can be directly to another element or be also possible to be connected to another yuan by element placed in the middle Part.In addition, unless otherwise indicated, otherwise the descriptions such as the term " first " in specification and " second " are used only for distinguishing specification In various components, element, step etc., without being intended to indicate that various components, element, the logical relation between step or suitable Order relation etc..

Fig. 1 is the structural schematic diagram of proportioning valve described in an embodiment of the present invention, and the proportioning valve includes shell 110, adjustment axis 120 and check valve 130.Incorporated by reference to Fig. 2, the shell 110 is equipped with inner cavity 111 and is connected to the inner cavity 111 Water inlet 112, water outlet 113 and discharge outlet 114.The water inlet 112, the water outlet 113 and the discharge outlet 114 are equal Set on the side of the shell 110.The water outlet 113 is set between the water inlet 112 and the discharge outlet 114.It is described It is equipped with intake tunnel between water inlet 112 and the water outlet 113 (intake tunnel can refer to path S shown in Fig. 2).The tune Nodal axisn 120 is equipped with the control valve 121 being located in the intake tunnel.Incorporated by reference to Fig. 4, the water outlet 113 and the row It is equipped with drainage channel (drainage channel can refer to path P shown in Fig. 4) between the mouth of a river 114, the check valve 130 is set to the row For controlling the drainage channel open and close in aquaporin.The check valve 130 and the adjustment axis 120 are setting up and down in described In inner cavity 111.When the adjustment axis 120 moves in the inner cavity 111, the water inlet is adjusted in the control valve 121 Mouthfuls 112 size is to adjust the open and close and water flow of the intake tunnel.When the adjustment axis 120 be moved to it is described unidirectional When valve 130 contacts, the adjustment axis 120 can open the check valve 130 so that the drainage channel is opened.

The size of intake tunnel is adjusted during moving up and down in the proportioning valve, adjustment axis 120 therein, from And regulating water flow, so that leaving water temperature is reached constant temperature, will not fluctuate.As shown in figure 3, when adjustment axis 120 be moved upward into When the mouth of a river 112 and water outlet 113 separate completely, it can completely close into water.As shown in figure 4, working as adjustment axis 120 further up When mobile, check valve 130 can be opened, water outlet 113 is connected to discharge outlet 114.Water outlet 113 can be by the water in heat exchanger Body is drawn, and is discharged via discharge outlet 114, and water-drainage antifreezing is carried out, and water route, which freezes, when preventing temperature low destroys gas-fired equipment.Therefore, Gas-fired equipment only needs that constant temperature, Guan Shui and water-drainage antifreezing and other effects can be realized using the proportioning valve, significantly simplifies combustion The structure of gas equipment, reduces the production cost.

In the present embodiment, the check valve 130 is set to the top of the discharge outlet 114, and the drainage channel includes being located at Connection runner 115 between the water outlet 113 and the check valve 130.The water outlet 113, the connection runner 115, The check valve 130 and the discharge outlet 114 are successively docked.Specifically, incorporated by reference to Fig. 5, the check valve 130 includes valve seat 131 and spool 132.The periphery of the valve seat 131 and the inner cavity 111 are in close contact.The valve seat 131 is equipped with the first pilot hole 1311 and first water hole 1312.The spool 132 includes baffle 1321 and the valve rod 1322 on the baffle 1321.Institute It states baffle 1321 and is used to open or blocks first water hole 1312, the valve rod 1322 is inserted into first pilot hole 1311 It is interior.When the drainage channel is closed, the baffle 1321 closes first water hole 1312；It is beaten in the drainage channel When opening, the adjustment axis 120 jacks up the valve rod 1322 into first pilot hole 1311, so that first water hole 1312 are connected with the runner 115 that is connected to.Said structure design is rationally ingenious, so that adjustment axis 120 can during rising Check valve 130 is opened, and during adjustment axis 120 is mobile, also achieves the effect for adjusting the water flow of drainage channel Fruit.

Further, please continue to refer to Fig. 5, the check valve 130 further includes return springs 133, the Flexible Reset Part 133 can be spring, elastic slice etc..The return springs 133 are for driving the baffle 1321 to be moved downward to and the valve Seat 131 offsets.During adjustment axis 120 moves down, spool 132 can reset bullet due to losing upward top power Reset is moved down under the driving of property part 133, so that the first water hole 1312 be closed, drainage channel is turned off.It needs to illustrate , in other examples, above-mentioned return springs 133 can also be saved, spool 132 can be automatic under gravity It falls.In addition, as shown in figure 3, the stroke A that adjustment axis 120 opens check valve 130 is less than the range B of check valve 130.

Further, please continue to refer to Fig. 5, the check valve 130 further includes the valve deck set on the top of the valve seat 131 134, the periphery of the valve deck 134 and the inner cavity 111 are in close contact.The valve deck 134 is equipped with the second pilot hole 1341 and the Two water holes 1342.Second water hole 1342 is connected with first water hole 1312, the water outlet 113, the company Passage flow duct 115, second water hole 1342, first water hole 1312 and the discharge outlet 114 are successively docked.It is described Baffle 1321 is set between first water hole 1312 and second water hole 1342, is used to open or blocks described first Water hole 1312.The spool 132 further includes the locating rod 1323 on the baffle 1321, the locating rod 1323 and institute State the two sides up and down that valve rod 1322 is located at the baffle 1321 respectively.The spool 132 can be integrally formed part, can also be group Piece installing.The locating rod 1323 can move up and down in second pilot hole 1341.One end of the return springs 133 with The valve deck 134 offsets, and the other end offsets with the baffle 1321.The setting of valve deck 134, on the one hand for being spool 132 Lower mobile offer guiding role, guarantees that spool 132 moves in set track, will not deviate, guarantee proportioning valve work Securely and reliably；On the other hand supporting point also is provided for dynamic clamping head and quiet clamping head.It should be noted that in other examples, it can also Above-mentioned valve deck 134 is saved, at this point, the water outlet 113, the connection runner 115, first water hole 1312 and institute Discharge outlet 114 is stated successively to dock.

Optionally, in the present embodiment, first water hole 1312 is at least two, at least two first water holes 1312 intervals are set to the periphery of first pilot hole 1311, for guaranteeing the flow of draining.Similarly, second water hole 1342 be at least two, and at least two intervals of second water hole 1342 are set to the periphery of second pilot hole 1341.It needs It is noted that in other examples, the quantity of first water hole 1312 and second water hole 1342 may be used also It is one, the quantity of the first water hole 1312 and the second water hole 1342 can be set according to actual needs.

In the present embodiment, as shown in Figures 2 to 4, the inner cavity 111, which is equipped with, is located at the water inlet 112 and the water outlet The second inner wall between the first inner wall and the water outlet 113 and the discharge outlet 114 between mouth 113.The control valve 121 are equipped with the first sealing ring 122 for being in close contact with first inner wall；Second inner wall be equipped with for institute State the second sealing ring 116 of the close contact of adjustment axis 120.First sealing ring 122 is for guaranteeing in Guan Shuishi, 113 He of water outlet Thoroughly completely cut off between water inlet 112.For second sealing ring, 116 one side for guaranteeing when with water, water body will not be from discharge outlet 114 Outflow；On the other hand guarantee in draining, water body can all be discharged from discharge outlet 114.In addition, being additionally provided on first inner wall For preventing the control valve 121 from adjusting excessive limiting section 117.

In the present embodiment, the proportioning valve further includes flow sensor 140, and the flow sensor 140 is set to described At water inlet 112.Flow sensor 140 is used to detect the flow of water inlet 112, the water flow transmitted by flow sensor 140 Amount information carrys out real-time monitoring water flow.

In addition, the end cap 150 is set to the bottom of the shell 110 as shown in Figure 1, the proportioning valve further includes end cap 150 End, the end cap 150 are equipped with the threaded hole being threadedly coupled with the adjustment axis 120.It the bottom end of adjustment axis 120 can be with stepper motor Connection.By the cooperation of adjustment axis 120 and end cap 150, so that rotation adjustment axis 120 can reach driving adjustment axis 120 and go up and down Effect so that proportioning valve is easy to adjust.The proportioning valve further includes sealing cover 160, and the sealing cover 160 is set to the shell 110 top, for sealing the shell 110.

Be illustrated below to the course of work of the proportioning valve: gas-fired equipment passes through band under general service condition The movement of adjustment axis 120 is moved to adjust inflow, cooperation gas quantity carries out automatic constant-temperature (Fig. 2)；Control valve 121, which is adjusted up, to be subtracted Few water, then to up-regulation, control valve 121 separates water inlet 112 and water outlet 113, completely closes into water (Fig. 3).It adjusts Valve 121 is again to up-regulation, and while control valve 121 separates water inlet 112 and water outlet 113, adjustment axis 120 is opened unidirectionally Water outlet 113 is connected to discharge outlet 114, can carry out water-drainage antifreezing (Fig. 4) by valve 130.

Each technical characteristic of above embodiments can be combined arbitrarily, for simplicity of description, not to above-described embodiment In each technical characteristic it is all possible combination be all described, as long as however, the combination of these technical characteristics be not present lance Shield all should be considered as described in this specification.

Above embodiments only express the several embodiments of the utility model, and the description thereof is more specific and detailed, but simultaneously The limitation to utility model patent range therefore cannot be interpreted as.It should be pointed out that for the ordinary skill people of this field For member, without departing from the concept of the premise utility, various modifications and improvements can be made, these belong to this reality With novel protection scope.

Claims (10)

1. a kind of proportioning valve, which is characterized in that including shell (110), adjustment axis (120) and check valve (130), the shell (110) water inlet (112), water outlet (113) and the discharge outlet for being equipped with inner cavity (111) and being connected to the inner cavity (111) (114), the water outlet (113) is set between the water inlet (112) and the discharge outlet (114), the water inlet (112) Intake tunnel is equipped between the water outlet (113), the adjustment axis (120) is equipped with the tune being located in the intake tunnel It saves valve (121), drainage channel, the check valve (130) is equipped between the water outlet (113) and the discharge outlet (114) In the drainage channel, the check valve (130) and the adjustment axis (120) are setting up and down in the inner cavity (111), When the adjustment axis (120) moves in the inner cavity (111), the intake tunnel is adjusted in the control valve (121) Open and close and water flow, when the adjustment axis (120) be moved to the check valve (130) contact when, the adjustment axis (120) check valve (130) can be opened so that the drainage channel is opened.

2. proportioning valve according to claim 1, which is characterized in that the check valve (130) is set to the discharge outlet (114) Top, the drainage channel includes the connection runner between the water outlet (113) and the check valve (130) (115), the water outlet (113), the connection runner (115), the check valve (130) and the discharge outlet (114) according to Secondary docking, the check valve (130) include valve seat (131) and spool (132), the periphery and the inner cavity of the valve seat (131) (111) it is in close contact, the valve seat (131) is equipped with the first pilot hole (1311) and the first water hole (1312), the spool (132) valve rod (1322) for including baffle (1321) and being set on the baffle (1321), described in the valve rod (1322) insertion In first pilot hole (1311), when the drainage channel is closed, the baffle (1321) is by first water hole (1312) Closing；When the drainage channel is opened, the adjustment axis (120) enters first pilot hole (1311) for the valve rod (1322) it jacks up, so that first water hole (1312) is connected to runner (115) conducting with described.

3. proportioning valve according to claim 2, which is characterized in that the check valve (130) further includes return springs (133), the return springs (133) offset for driving the baffle (1321) to be moved downward to the valve seat (131).

4. proportioning valve according to claim 3, which is characterized in that the check valve (130) further includes being set to the valve seat (131) valve deck (134) of top, the periphery and the inner cavity (111) of the valve deck (134) are in close contact, the valve deck (134) the second pilot hole (1341) and the second water hole (1342), second water hole (1342) and first mistake are equipped with Water hole (1312) conducting, the water outlet (113), the connection runner (115), second water hole (1342), described the One water hole (1312) and the discharge outlet (114) are successively docked, and the spool (132) further includes being set to the baffle (1321) baffle is located in the locating rod (1323) on, the locating rod (1323) and the valve rod (1322) respectively (1321) two sides up and down, the locating rod (1323) can move up and down in second pilot hole (1341), the reset One end of elastic component (133) offsets with the valve deck (134), and the other end offsets with the baffle (1321).

5. proportioning valve according to claim 2, which is characterized in that first water hole (1312) is at least two, until Few two the first water hole (1312) intervals are set to the periphery of first pilot hole (1311).

6. proportioning valve according to claim 1, which is characterized in that the inner cavity (111), which is equipped with, is located at the water inlet (112) between the first inner wall between the water outlet (113) and the water outlet (113) and the discharge outlet (114) Second inner wall, the control valve (121) are equipped with the first sealing ring (122) for being in close contact with first inner wall, Second inner wall is equipped with the second sealing ring (116) for being in close contact with the adjustment axis (120).

7. proportioning valve according to claim 6, which is characterized in that first inner wall is equipped with for preventing the adjusting Valve (121) adjusts excessive limiting section (117).

8. proportioning valve according to claim 1, which is characterized in that further include end cap (150), the end cap (150) is set to The bottom end of the shell (110), the end cap (150) are equipped with the threaded hole being threadedly coupled with the adjustment axis (120).

9. proportioning valve according to claim 1, which is characterized in that it further include sealing cover (160), the sealing cover (160) Set on the top of the shell (110).

10. proportioning valve according to claim 1, which is characterized in that further include flow sensor (140), the flow passes Sensor (140) is set at the water inlet (112).