Model utility content
The utility model is intended at least to solve one of technical problem existed in prior art.For this reason, an object of the present utility model is to propose a kind of safety valve for water heater, thus accurately can detect the hydraulic pressure of the valve inner of safety valve.
Another object of the present utility model is to propose a kind of water heater with above-mentioned safety valve.
According to the safety valve for water heater of the utility model first aspect, comprising: valve body, described valve body is formed with water intake, water outlet and discharge opening; First spool, described first spool to be located in described valve body and movably with conducting with cut off described water intake and described water outlet between described water intake and described water outlet; Second spool, described second spool to be located in described valve body and at least one and the described discharge opening that are configured for conducting and cut off in described water intake and described water outlet movably; And pressure-detecting device, described pressure-detecting device is located on described valve body, and described pressure-detecting device comprises pressure sensitive head, and described pressure sensitive head stretches in described valve body to detect the hydraulic pressure of described valve inner.
According to the safety valve for water heater of the present utility model, by arranging pressure-detecting device, the hydraulic pressure of the valve inner of safety valve accurately can be detected.When safety valve application is in water heater such as electric water heater, the controller of water heater such as electric water heater can according to it survey variation in water pressure and carry out necessary preventing water leakage process and the controls such as alarm of leaking, thus be very easy to user.
Alternatively, described pressure-detecting device to be located on described valve body and between described water intake and described water outlet.
Further, the contiguous described water outlet of described pressure-detecting device is arranged.
Alternatively, described pressure-detecting device adopts the mode be threaded to seal to be arranged on described valve body.
Particularly, described pressure-detecting device also comprises screw section and engagement portion, and described screw section to be connected between described pressure sensitive head and described engagement portion and to be connected with described valve body screw thread, and described engagement portion is for being fastened on described valve body by described pressure sensitive head.
Further, Sealing is provided with between described pressure-detecting device and described valve body to seal the gap between described pressure-detecting device and described valve body.
Or alternatively, the mode of described pressure-detecting device employing crimping seals and is arranged on described valve body.
According to the water heater of the utility model second aspect, comprising: body, described body has import; With the safety valve for water heater according to the above-mentioned first aspect of the utility model, wherein said safety valve is located at described inlet.
Additional aspect of the present utility model and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present utility model.
Embodiment
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the utility model, and can not being interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " " center ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.In addition, in description of the present utility model, except as otherwise noted, the implication of " multiple " is two or more.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition the concrete meaning of above-mentioned term in the utility model can be understood.
Below with reference to Fig. 1-Fig. 4, the safety valve 100 for water heater (scheming not shown) according to the utility model embodiment is described.Safety valve 100 may be used for the inlet of water heater.Wherein, safety valve 100 may be used in water heater such as electric water heater.In description below the application, for safety valve 100 for being described in electric water heater.Certainly, those skilled in the art are appreciated that safety valve 100 can also be used in water heater such as solar water heater of other type etc.
As shown in figures 1 and 3, according to the safety valve 100 for water heater such as electric water heater of the utility model first aspect embodiment, comprise valve body 1, first spool 2, second spool 3 and pressure-detecting device 4.
Valve body 1 is formed with water intake 111, water outlet 112 and discharge opening 121.Such as, with reference to Fig. 1 and Fig. 3, valve body 1 comprises roughly orthogonal first valve body 11 and the second valve body 12, first valve body 11 vertically extends, second valve body 12 extends in the horizontal direction, and one end of the second valve body 12 (right-hand member such as, in Fig. 1 with Fig. 3) is roughly connected with the middle part of the first valve body 11, the two ends of the first valve body 11 are respectively water intake 111 and water outlet 112, and discharge opening 121 is formed on the sidewall of the second valve body 12.Be appreciated that the concrete form etc. of valve body 1 specifically can be arranged according to actual requirement, the utility model does not make particular determination to this.
When safety valve 100 to be applied on water heater such as electric water heater and to be arranged on the inlet of water heater such as electric water heater, the water intake 111 of safety valve 100 can be communicated with to feed tap water in valve body 1 with tap water pipe line, the water outlet 112 of safety valve 100 is such as communicated with to be fed in the inner bag of water heater such as electric water heater by the tap water in valve body 1 in electric water heater inside with water heater.When the hydraulic pressure in valve body 1 exceedes predetermined pressure, the water in valve body 1 can be discharged by discharge opening 121, to ensure the Security that water heater such as electric water heater uses.
First spool 2 is located in valve body 1 movably, and the first spool 2 between water intake 111 and water outlet 112 with conducting with cut off water intake 111 and water outlet 112.As shown in figures 1 and 3, the first spool 2 can be located in the first valve body 11 up or down.When the first spool 2 is positioned at blocking position, water intake 111 and water outlet 112 are cut off by the first spool 2, thus can not be flowed out from water outlet 112 by the water of water intake 111; When the first spool 2 is positioned at conduction position, water intake 111 and water outlet 112 conducting, now can flow to water outlet 112 by water intake 111 water entered in the first valve body 11 and be flowed out by water outlet 112.
Second spool 3 is located in valve body 1 movably, and the second spool 3 is configured for conducting and at least one in partition water intake 111 and water outlet 112 and discharge opening 121.As shown in figures 1 and 3, the second spool 3 can movably be located in the second valve body 12.When the pressure of the tap water entered from water intake 111 exceedes safety valve 100 cracking pressure, the second spool 3 is moved to the left with conducting water intake 111 and discharge opening 121, and water flows out from discharge opening 121, bears too high pressure to prevent inner bag; When the overpressure in inner bag (such as, the heating devices heat arranged in inner bag causes inner bag internal pressure to rise) time, second spool 3 equally also can be moved to the left with conducting water outlet 112 and discharge opening 121, water in inner bag is flowed out by discharge opening 121 by water outlet 112, to reduce the pressure in inner bag.
Further, as shown in figures 1 and 3, valve body 1 is provided with handle 5, and handle 5 is connected with the second spool 3 second spool 3 is moved relative to valve body 1.Thus, stir handle 5, the second spool 3 can move along with the motion of handle 5, thus the conducting of at least one and the discharge opening 121 that can control in water intake 111 and water outlet 112 and partition.
Pressure-detecting device 4 is located on valve body 1, and for example, referring to Fig. 1 and Fig. 3, pressure-detecting device 4 is located on the first valve body 11, and pressure-detecting device 4 comprises pressure sensitive 41, and pressure sensitive 41 is stretched in valve body 1 to detect the hydraulic pressure of valve body 1 inside.
Wherein, pressure-detecting device 4 also has outside lead 44, and outside lead 44 is suitable for being connected with the controller of water heater such as electric water heater, and controller is connected with heating equipment.Thus, when pressure-detecting device 4 works, pressure sensitive 41 can outwards export measured pressure parameter with the form of electrical quantity, thus controller can carry out necessary preventing water leakage process and the controls such as alarm of leaking according to surveyed variation in water pressure.Such as, when heating equipment work and the pressure that detects of pressure-detecting device 4 close to predetermined pressure time, controller can control heater stop work, spills from discharge opening 121 to prevent water.When supply water to water heater such as electric water heater and the pressure that detects of pressure-detecting device 4 close to predetermined pressure time, controller can send alarm of leaking, after user hears alarm of leaking, can running water valve be closed, stop supplying water in water heater such as electric water heater.
According to the safety valve 100 for water heater such as electric water heater of the utility model embodiment, by arranging pressure-detecting device 4, the hydraulic pressure of valve body 1 inside of safety valve 100 accurately can be detected.When safety valve 100 is applied to water heater such as electric water heater, the controller of water heater such as electric water heater can according to it survey variation in water pressure and carry out necessary preventing water leakage process and the controls such as alarm of leaking, thus be very easy to user.
Alternatively, pressure-detecting device 4 is located on valve body 1, and pressure-detecting device 4 is between water intake 111 and water outlet 112.Such as, as shown in figures 1 and 3, pressure-detecting device 4 to be located on the first valve body 11 and contiguous water outlet 112 is arranged.Thus, the pressure of the water at the mouth of a river 112 place can accurately be detected further.
According to an embodiment of the present utility model, with reference to Fig. 1 composition graphs 2, pressure-detecting device 4 adopts the mode be threaded to seal and is arranged on valve body 1.Thus, easy for installation, and when pressure-detecting device 4 changed by needs, the pressure-detecting device 4 on valve body 1 can be screwed off, change new pressure-detecting device 4.
Specifically, as shown in Figure 2, pressure-detecting device 4 also comprises screw section 42 and engagement portion 43, screw section 42 is connected to pressure sensitive between 41 and engagement portion 43, and screw section 42 is threaded with valve body 1, screw section 42 is formed with outside thread, the first valve body 11 is formed with the tapped hole coordinated with the outside thread of screw section 42.Engagement portion 43 for pressure sensitive 41 is fastened on valve body 1, thus ensure that the fixing that pressure-detecting device 4 is connected with valve body 1.Wherein, outside lead 44 is connected to one end (such as, the right-hand member in Fig. 2) away from pressure sensitive 41 of engagement portion 43, so that be connected with the controller of water heater such as electric water heater.
Further, Sealing 6 is provided with between pressure-detecting device 4 and valve body 1 with the gap between sealing load detection device 4 and valve body 1.Such as, as shown in Figure 1, Sealing 6 can be seal ring, seal ring to be set on pressure-detecting device 4 and between screw section 42 and engagement portion 43, after pressure-detecting device 4 and valve body 1 are seated, seal ring is positioned at the tapped hole of valve body 1, and now seal ring is positioned at one end away from the first valve body 11 center of tapped hole (such as, right-hand member in Fig. 1), with the gap better between sealing load detection device 4 and valve body 1.
According to another embodiment of the present utility model, with reference to Fig. 3 composition graphs 4, pressure-detecting device 4 can also adopt the mode of crimping to seal and be arranged on valve body 1.Specifically, the sidewall of the first valve body 11 can be formed with through through hole, during assembling, by a pressure sensitive 41 press-in through hole.In order to ensure the reliability that pressure-detecting device 4 is connected with valve body 1 further, pressure-detecting device 4 comprises casting die 45 further, and casting die 45 is located at pressure sensitive between 41 and outside lead 44 and is connected on valve body 1 by screw 46.
Further, as shown in Figure 3, be arranged with Sealing 6 outside pressure sensitive 41, Sealing 6 is only against between the outer wall of the first valve body 11 and casting die 45 to seal the gap between through hole and pressure sensitive 41.Wherein, Sealing 6 is preferably seal ring.
Be appreciated that the concrete mounting type of pressure-detecting device 4 on valve body 1 can require and adaptive change according to practical set, the utility model does not make particular determination to this.
According to the safety valve 100 for water heater such as electric water heater of the utility model embodiment, by arranging pressure-detecting device 4 on its valve body 1, pressure-detecting device 4 can detect and delivery pressure signal in real time, this signal can as the use of water heater such as electric water heater control, thus the controller of water heater such as electric water heater can according to it survey variation in water pressure and carry out necessary preventing water leakage process and alarm etc. of leaking, and then the user demand of user can be met better.
According to the water heater such as electric water heater of the utility model second aspect embodiment, comprising: body and the safety valve 100 for water heater according to the above-mentioned first aspect embodiment of the utility model.Wherein, body has import, and import is used for supplying water in body, and safety valve 100 is located at inlet.
According to the water heater such as electric water heater of the utility model embodiment, by adopting the safety valve 100 according to the above-mentioned first aspect embodiment of the utility model, the controller of water heater can according to the pressure-detecting device 4 of safety valve 100 survey variation in water pressure and carry out necessary preventing water leakage process and the controls such as alarm of leaking, thus improve the overall performance of water heater such as electric water heater.
According to the water heater such as electric water heater of the utility model embodiment other form and operation be all known to those skilled in the art, be not described in detail here.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present utility model and aim, scope of the present utility model is by claim and equivalents thereof.