CN201335197Y

CN201335197Y - Pressure relief valve

Info

Publication number: CN201335197Y
Application number: CNU2008202172604U
Authority: CN
Inventors: 王国著
Original assignee: Nanjing Yike Mechanical & Electronic Technology Co Ltd
Current assignee: Nanjing Yike Mechanical & Electronic Technology Co Ltd
Priority date: 2008-11-28
Filing date: 2008-11-28
Publication date: 2009-10-28
Anticipated expiration: 2018-11-28

Abstract

The utility model relates to a pressure relief valve with low power and short time of the valve from being closed to being fully opened. The pressure relief valve comprises a valve body and an elastic element, the elastic element is fixed in an inlet channel of the valve body, and the pressure relief valve is characterized by further comprising a sealing part, a switching element and a motor, wherein, the sealing part is sued for sealing the inlet channel and an outlet channel of the valve body, one side of the sealing part is connected with the elastic element, a valve rod is arranged on the other side of the sealing part, the switching element is connected with the motor, a relief groove adapted with the valve rod is arranged in the circumferential direction of the switching element, when the pressure relief valve is closed, the valve rod is matched with one side of the switching element by pressing, and when the pressure relief valve is opened, the motor drives the switching element to rotate, the valve rod falls to the relief groove to enable the sealing part to move, and the inlet channel and the outlet channel are communicated; the motor is a direct-current speed reduction motor and the switching element is preferably fixed on the valve body through a deep groove ball bearing. The utility model has simple structure and skilful concept, can work under the low voltage, has low power and consumes less time of the valve from being closed to being fully opened.

Description

Pressure-relief valve

Technical field

The utility model relates to a kind of pressure-relief valve, belongs to the electromechanical integration field.

Background technique

The solenoid valve power of the circulation aperture φ 15 that supplies on the market is all greater than 10W now, can't satisfy battery-powered application, another kind of scheme is to adopt the mode of electric ball valve, power of motor can reduce, but valve need rotate 90 ° from closed condition to opening spool fully, time spent can't be satisfied requirement fast more than 5 seconds.

The model utility content

The utility model provides a kind of pressure-relief valve, and power is little, and valve is short from being closed to the time of opening fully.

Described pressure-relief valve comprises valve body, elastic element, elastic element is fixed in the inlet channel of valve body, it is characterized in that also comprising sealed member, switch part and motor, sealed member is used for the inlet channel of valve body and the sealing between the outlet passage, one side and elastic element join, opposite side is provided with valve rod, switch part links to each other with motor, and upwards is being provided with in its week and the corresponding release groove of valve rod, when pressure-relief valve cuts out, valve rod cooperates with a side compression of switch part, when pressure-relief valve was opened, the motor driven switch parts rotated, and valve rod falls into release groove, sealed member is moved, be communicated with inlet channel and outlet passage.

Described elastic element is preferably spring.

Described sealed member can be a diaphragm type structure, piston cylinder operator, or remaining can be communicated with the sealing configuration of inlet channel and outlet passage after moving.Described sealed member preferably adopts by the fixing diaphragm of clamp device, not only can reach predetermined sealing effect, and surface friction drag is little, and technology is simple, low price.

Described motor is a DC speed-reducing, and motor speed is 6-15r/min.

Described switch part preferably is fixed on the valve body by deep groove ball bearing.When pressure-relief valve was opened, after the motor driven switch parts rotated 10-40 °, valve rod fell into release groove.

As improvement of the present utility model, described pressure-relief valve also comprises position transducer, the position information of induction valve rod.As preferred version, described position transducer is the magnetic Hall element, and valve stem tip is provided with magnet steel, and when valve rod moved to specified position, position transducer sent signal.

Adopt the utility model, after electrical power rotated very small angle, valve rod fell into release groove, moved rapidly at the effect lower seal parts of pressure reduction and spring, made suction port and air outlet lead to the purpose of release mutually.Because angle of swing is little, adopt the motor of less rotating speed, can open valve fast, because pressure-relief valve is simple in structure, the switch part rotational resistance is little, thereby can still can open valve mandril reliably under the condition of power of motor＜0.5W simultaneously.Switch part adopts deep groove ball bearing to be fixed on the valve body, and the power of can further reducing friction reduces power of motor.

The utility model is simple in structure, is skillfully constructed, and can work under low voltage, and power is little, and valve to open the time spent fully very short from being closed to.

Description of drawings

Fig. 1 is the utility model structural drawing;

Fig. 2 is the left view of switch part among Fig. 1.

Embodiment

As shown in Figure 1 and Figure 2, pressure-relief valve comprises valve body, motor 1, switch part 2, sealed member 3, valve rod 4, elastic element 5, position transducer 6, deep groove ball bearing 7, magnet steel 8, inlet channel 9 and outlet passage 10.Wherein motor 1 is a DC speed-reducing, and voltage is 3V, rated power 0.45w, and rotating speed is 10r/min, is fixed on the valve body of pressure-relief valve.Switch part 2 is fixed on the valve body by deep groove ball bearing 7, the one side is the disk of diameter 60mm, and along being circumferentially with and the corresponding release groove 11 of valve rod, opposite side and motor 1 are coupling, rotating center 12 biasings of switch part 2, the distance that makes release groove 11 and rotating center 12 is greater than disc radius.Because release groove 11 is big more with the ratio of valve rod 4 sectional dimensions with the distance of rotating center 12, angle of swing is just more little, therefore under the certain situation of valve rod 4 sectional dimensions and angle of swing, and rotating center 12 biasings of switch part 2, can reduce disk diameter, thus effective economical with materials.Sealed member 3 is used for the inlet channel 9 of valve body and the sealing between the outlet passage 10, sealed member 3 comprises by the fixing ring film of clamp device, the diaphragm outside embeds valve interior wall, clamp device is two disks that connect by fastening piece, one side and elastic element 5 join, and opposite side is provided with the valve rod 4 that diameter is 6mm.Elastic element 5 is a spring, and valve rod is provided with magnet steel in 4 tops, and position transducer 6 is the magnetic Hall element.

Inlet channel 9 is connected with pipeline, and normal working lower valve rod 4 is under the stopping of switch part 2, because the effect of sealed member 3, pressure-relief valve is in sealing state shown in Figure 1.When the needs release, after 15 ° of the motor 1 energising rotations, switch part 2 rotations, make valve rod 4 fall into release groove, valve rod 4 moves right sealed member 3 rapidly under the effect of air pressure and elastic element 5, and cuts off diaphragm wherein, make inlet channel 9 be communicated with the purpose that reaches rapid release with outlet passage 10, valve rod 4 moves right to limit position under the effect of elastic element 5 simultaneously, and the magnet steel 8 approximated position sensors 6 in valve rod 4 tops send the valve open signal.Valve is from being closed to the time of opening fully less than 1 second.

Claims

1, a kind of pressure-relief valve, comprise valve body, elastic element, elastic element is fixed in the inlet channel of valve body, it is characterized in that also comprising sealed member, switch part and motor, sealed member is used for the inlet channel of valve body and the sealing between the outlet passage, one side and elastic element join, and opposite side is provided with valve rod, and switch part links to each other with motor, and upwards be provided with in its week and the corresponding release groove of valve rod, when pressure-relief valve cut out, valve rod cooperated with a side compression of switch part, when pressure-relief valve is opened, the motor driven switch parts rotate, valve rod falls into release groove, and sealed member is moved, and is communicated with inlet channel and outlet passage.

2, pressure-relief valve as claimed in claim 1 is characterized in that also comprising position transducer, the position information of induction valve rod.

3, pressure-relief valve as claimed in claim 2 is characterized in that described position transducer is the magnetic Hall element, and valve stem tip is provided with magnet steel, and when valve rod moved to specified position, position transducer sent signal.

4,, it is characterized in that described elastic element is a spring as each described pressure-relief valve among the claim 1-3.

5,, it is characterized in that the diaphragm of described sealed member for fixing by clamp device as each described pressure-relief valve among the claim 1-3.

6, pressure-relief valve as claimed in claim 5 is characterized in that the described diaphragm outside embeds valve interior wall.

7, pressure-relief valve as claimed in claim 5 is characterized in that two disks of described clamp device for connecting by fastening piece.

8,, it is characterized in that described switch part is fixed on the valve body by deep groove ball bearing as each described pressure-relief valve among the claim 1-3.

9, as each described pressure-relief valve among the claim 1-3, it is characterized in that described motor is a DC speed-reducing, motor speed is 6-15r/min.

10, as each described pressure-relief valve among the claim 1-3, when it is characterized in that pressure-relief valve is opened, after the motor driven switch parts rotated 10-40 °, valve rod fell into release groove.