Water Proportional valve
Technical field
The utility model belongs to valve technology field, relates to a kind of controller for liquid flow, particularly a kind of water Proportional valve.
Background technique
Water Proportional valve is widely used in sanitaryware, and its valve port can open a corresponding aperture as required, controls the size by flow thus.Along with the lifting of the level of production, automatically controlled water Proportional valve instead of the water Proportional valve of most of Non-follow control.Chinese patent discloses a kind of water Proportional valve [Authorization Notice No. is: CN201795142U], it comprises valve body, traffic pulse generator, Hall element, spool and stepper motor, wherein traffic pulse generator is longitudinally located in the intake tunnel of valve body, Hall element is located at the outside of valve body and corresponding with the position of traffic pulse generator, and the spool be located in valve body is connected with the stepper motor being located at valve body outside.
Above-mentioned water Proportional valve integrally structure, stepper motor and valve body is needed to be fixed together, its way is on stepper motor, fix square mounting plate, the one end being positioned at stepper motor at valve body is processed with fitting seat, by at least four screws, fitting seat is fixed on mounting plate, owing to needing the screw of installation more, cost is higher, and the installation time is longer, valve body processes fitting seat, and manufacture difficulty, the thickness of fitting seat is large, the material adding man-hour requirement is many, and structural design is unreasonable.This water Proportional valve is provided with temperature detecting head, and this temperature detecting head is difficult drop-off under the effect of pressing plate, owing to additionally arranging pressing plate, causes cost to increase, and installation process is complicated.
Summary of the invention
The purpose of this utility model there are the problems referred to above for existing technology, proposes a kind of reasonable in design, water Proportional valve easy for installation.
The purpose of this utility model realizes by following technical proposal:
This water Proportional valve, comprise the valve body with intake tunnel and exhalant canal, the stepper motor be located at the spool in valve body and be located at outside valve body, described spool is positioned at exhalant canal and is connected with stepper motor, traffic pulse generator is provided with in described intake tunnel, the outside of described valve body is provided with Hall element, the setting corresponding with the position of traffic pulse generator of described Hall element, it is characterized in that, connecting plate is provided with between described valve body and stepper motor, described connecting plate have two for the attachment hole one that is connected with valve body and two attachment holes two for being connected with stepper motor, the outer side surface of described valve body is provided with two along the axially extended assembly department one of exhalant canal, assembly department one described in two is corresponding with the attachment hole one described in two to be arranged and is connected by screw.
Replacing thickness and the larger fitting seat of volume by arranging two assembly departments one on valve body, effectively can save material, thus reducing manufacture cost, and only just connecting plate and valve body can be fixed together by two screws, installation rate is fast, reduces screw use amount, cost-saving.Traffic pulse generator changes four header structures into by three header structures, strengthens sealing effect, effectively improves control accuracy.
In above-mentioned water Proportional valve, described connecting plate assumes diamond in shape, and two attachment holes one lay respectively at two diagonal angle places be oppositely arranged of connecting plate, and two attachment holes two lay respectively at two other diagonal angle place be oppositely arranged of connecting plate.
In above-mentioned water Proportional valve, two assembly departments one lay respectively at the two opposite sides of valve body.
In above-mentioned water Proportional valve, the side of described stepper motor is provided with two and arranges along the assembly department two described in the axially extended assembly department of exhalant canal two, two is corresponding with the attachment hole two described in two and is connected by screw.
Installation steps are as follows: alignd with assembly department one by the attachment hole one of connecting plate, and be connected by screw, alignd by the attachment hole two of the connecting plate be connected, and be screwed with assembly department two.
In above-mentioned water Proportional valve, described valve body is provided with the measuring hole be communicated with exhalant canal, be provided with its inner in described measuring hole and stretch to temperature detecting head in exhalant canal, described valve body is provided with the disconnecting prevention structure come off for limit temperature detecting head.
In above-mentioned water Proportional valve, described disconnecting prevention structure comprises the assembly department three be located on valve body and the housing pin be located in assembly department three, described assembly department three is disposed adjacent with measuring hole, described housing pin is threaded with assembly department three, and the club head portion of described housing pin is pressed on the outer end of said temperature detecting head.
Directly by housing pin, temperature detecting head is compressed, omit pressing plate, cost-saving.
Compared with prior art, this water Proportional valve has the following advantages:
Thickness and the larger fitting seat of volume is replaced by arranging two assembly departments one on valve body, under the prerequisite ensureing degree of being connected firmly, effectively can save material, thus reduction manufacture cost, and only just connecting plate and valve body can be fixed together by two screws, installation rate is fast, reduces screw use amount, cost-saving; Directly by housing pin, temperature detecting head is compressed, omit pressing plate, cost-saving; The inside of water Proportional valve increases by 45 ° of chamfering structures, effectively reduces noise; Material of main part replaces with PPS plastics by nylon, and control accuracy improves.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of preferred embodiment that the utility model provides.
Fig. 2 is the side view of Fig. 1 that the utility model provides.
Fig. 3 is the structural representation of the connecting plate that the utility model provides.
In figure, 1, valve body; 11, intake tunnel; 12, exhalant canal; 13, measuring hole; 2, stepper motor; 3, connecting plate; 31, attachment hole one; 32, attachment hole two; 41, assembly department one; 42, assembly department two; 43, assembly department three; 5, housing pin.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
Water Proportional valve as shown in Figure 1, comprise the valve body 1 with intake tunnel 11 and exhalant canal 12, the stepper motor 2 be located at the spool in valve body 1 and be located at outside valve body 1, spool is positioned at exhalant canal 12 and is connected with stepper motor 2, traffic pulse generator is provided with in intake tunnel 11, the outside of valve body 1 is provided with Hall element, Hall element setting corresponding with the position of traffic pulse generator, as depicted in figs. 1 and 2, connecting plate 3 is provided with between valve body 1 and stepper motor 2, as shown in Figure 3, connecting plate 3 have two for the attachment hole 1 that is connected with valve body 1 and two attachment holes 2 32 for being connected with stepper motor 2, as shown in Figure 1, the outer side surface of valve body 1 is provided with two along the axially extended assembly department 1 of exhalant canal 12, two assembly departments 1 are corresponding with two attachment holes 1 to be arranged and is connected by screw.
Replacing thickness and the larger fitting seat of volume by arranging two assembly departments 1 on valve body 1, effectively can save material, thus reducing manufacture cost, and only just connecting plate 3 and valve body 1 can be fixed together by two screws, installation rate is fast, reduces screw use amount, cost-saving.Traffic pulse generator changes four header structures into by three header structures, strengthens sealing effect, effectively improves control accuracy.
As shown in Figure 3, connecting plate 3 assumes diamond in shape, and two attachment holes 1 lay respectively at two diagonal angle places be oppositely arranged of connecting plate 3, and two attachment holes 2 32 lay respectively at two other diagonal angle place be oppositely arranged of connecting plate 3, as shown in Figure 2, two assembly departments 1 lay respectively at the two opposite sides of valve body 1.
As shown in Figure 2, the side of stepper motor 2 is provided with two and arranges along the axially extended assembly department of exhalant canal 12 2 42, two assembly departments 2 42 are corresponding with two attachment holes 2 32 and are connected by screw.Installation steps are as follows: alignd with assembly department 1 by the attachment hole 1 of connecting plate 3, and be connected by screw, alignd by the attachment hole 2 32 of the connecting plate 3 be connected, and be screwed with assembly department 2 42.
As shown in Figure 1, valve body 1 is provided with the measuring hole 13 be communicated with exhalant canal 12, be provided with its inner in measuring hole 13 and stretch to temperature detecting head in exhalant canal 12, valve body 1 is provided with the disconnecting prevention structure come off for limit temperature detecting head.
Concrete, as shown in Figure 1, disconnecting prevention structure comprises the assembly department 3 43 be located on valve body 1 and the housing pin 5 be located in assembly department 3 43, assembly department 3 43 is disposed adjacent with measuring hole 13, housing pin 5 is threaded with assembly department 3 43, and the club head portion of housing pin 5 is pressed on the outer end of temperature detecting head, is directly compressed by temperature detecting head by housing pin 5, omit pressing plate, cost-saving.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.