A kind of battery powered low-power consumption electrical ball valve
Technical field
The utility model belongs to valve technology field, and especially a kind of included internal electric source is not required to the electronic of external power supply
Ball valve.
Background technique
Currently, common electrical ball valve its structure in market generally include valve body, be located at the intracorporal ball valve core of valve and valve seat,
And be located at the Electric Actuator above valve body, be connected with valve rod above ball valve core, the valve rod other end stretch out valve body with it is electronic
Actuator connection, Electric Actuator driving stem drive ball valve core to rotate the intracorporal medium channel of on and off valve;Due to
Structure is limited, and there are following some defects for the electrical ball valve of the prior art: (1) valve seat pretightning force needs very big;(2) valve opening torque is closed
It is very big, easy clamping;(3) poor sealing performance;(4) external power supply is needed;(5) power consumption is big;(6) requirement of explosion proof is not had.
Utility model content
A kind of performance that in order to overcome the deficiencies of the prior art, the utility model provides is stable, low in energy consumption, service life
Battery powered low-power consumption electrical ball valve long, sealing effect is good.
To achieve the goals above, the technical solution adopted in the utility model is: a kind of battery powered low-power consumption is electronic
Ball valve, including valve body, valve body are equipped with medium channel, are equipped with core, seal valve seat component in medium channel, are connected in core
Valve rod, valve stem end stretch out valve body upper mounting plate except connect electric operator, it is characterised in that: the seal valve seat component
Positioned at core side, the core other side, which is equipped with, compresses valve component, compress valve component include be installed on it is in medium channel and
Cap, and cap outer wall and medium channel are cooperated by sealing element sealing, and cap is pacified towards mounting groove is equipped in one end inner hole of core
It is equipped in tankage and compresses valve seat, compressed and be equipped with spring between valve seat and mounting groove inner wall, spring, which is installed on, compresses valve seat away from ball
There is driving compression valve seat to be extruded in the tendency of the trend in core for the side of core, the elastic force of spring.
Above-mentioned core is located in medium channel, drives core to rotate by electric operator driving stem so that medium is logical
Road on and off plays switch valve action, which is formed by seal valve seat component and medium channel and be tightly connected,
Seal valve seat component includes the seal valve seat with core cooperation, passes through O-shaped sealing between seal valve seat and the medium channel of valve body
Circle is tightly connected, and the core other side, which is equipped with, compresses valve seat, is compressed valve seat and is tightly attached in core by the promotion of spring, and provides
Initial pretightening force, so that core and seal valve seat compress;When valve opening, during core is automatically fixed under initial pretightening force effect, and with
The conducting of seal valve seat inner hole;When closing valve, core is not turned on seal valve seat inner hole, and Fluid pressure, Fluid pressure are formed in pipeline
Bigger promotion is formed to core, forms additional pretightning force, this additional pretightning force is more many times larger than initial pretightening force, is formed
Closely sealing cooperation;Above-mentioned initial pretightening force of filling has spring offer, smaller, and it is initially pre- can to maximally reduce ball valve
Clamp force, to reduce valve rod operation torque.
Further, described and cap includes cap body portion and cap end, and cap outer end diameter is greater than cap body portion outer diameter, and cap along
Medium channel Single port be inserted into medium channel in, cap end is connected through a screw thread with medium channel Single port inner wall, cap body portion and
It is connected between medium channel inner wall by the sealing element, the compression valve seat is installed in the inner hole in cap body portion.
In above structure, and sealing cooperation has explosion-proof between cap and valve body, and valve body is fixed in the cap end of cap
In, cap body portion provides installation space to compress valve seat and spring.
Further, cap body portion is arranged in towards on one end inner hole wall of core in the mounting groove, and mounting groove includes internal diameter
Greater than the annular groove in cap body portion inner hole aperture, annular groove partial sidewalls are also provided with the spring groove that bore is greater than annular groove, described
Mounting groove forms step-like groove structure, and the compression valve seat includes compressing valve seat body, compresses valve seat body and is located at annular groove
In, it compresses valve seat body one end and is connected on annular groove roof, compress the valve seat body other end and extend towards core direction, compress valve
The extended segment outer wall of seat ontology has shoulder outstanding, which is embedded in spring groove and abuts with spring, compresses valve seat sheet
Body has mating surface corresponding with core surface towards the port of core.
The mounting groove in above-mentioned cap body portion uses step-like multi-layer groove structure setting, so that compressing valve seat, spring and installation
Slot forms compact cooperation.
Further, the core upper surface is equipped with groove, and valve rod is flat equipped with cooperating with groove towards one end of core
Flat portion, groove floor are inner concave arc surface structure, and the bottom surface of plat part has the convex globoidal being adapted to groove floor.
Above-mentioned stem bottom is connect by plat part with core, and rotation valve rod can drive core to rotate, and valve rod is installed on
In axle sleeve, axle sleeve is installed in the through-hole of valve body upper mounting plate, and valve body upper mounting plate is additionally provided with bracket, and electric operator is installed on branch
On frame.
Further, the electric operator includes power supply module, direct current generator, deceleration device, transition sector gear
And travel switch, power supply module include the control of the power supply circuit of dry cell batteries and be turned on or off dry cell batteries and direct current generator
Device, power supply module are connect with direct current generator, the input gear Synchronous Transmission of direct current generator output shaft and deceleration device, deceleration device
Reduction gearing output end moved synchronously with transition sector gear, the travel switch include valve opening travel switch and close stroke of valve
Switch, valve opening travel switch and pass stroke of valve switch are located at the both ends that shift reciprocately track occurs for transition sector gear, transition fan
Shape gear is pressed with the formation of the travel switch of corresponding position after turning at the either end at the both ends and is contacted, travel switch
Electric signal is formed with controller to connect.
Above-mentioned Electric Actuator provides power drives by controller and dry cell batteries, drives the reducing gear inside deceleration device
Wheel rotation promotes final output torsion, when minor details gear drives transition sector gear slowly to turn to valve opening travel switch, control
Device processed receives valve opening travel switch or closes stroke of valve switch electric signal in place, and automatically cuts off immediately or turn-on power, together
When export switch valve status information.
Using the above scheme, the utility model proposes a kind of internal electric source power supply low torque micro energy lose electrical ball valve,
It, to the pressure of core, makes this pressure that core be pushed to be adjacent to seal valve seat using fluid, forms additional pretightning force.Make ball in this way
Core reaches sealing effect under the effect of the dual pretightning force of spring and fluid media (medium), has maximally reduced pretightning force, thus
Reduce the torque of valve rod.This structure is especially significant to the function and effect of larger caliber valve, reduces the power consumption of electrically operated valve
It is required that realize that internal electric source can be battery powered, while controller can receive identification switch valve control signal and switch valve state,
The switch valve of shielding mistake controls signal, when switch valve in place after automatically cut off the power by controller, reduce power consumption and avoid
Electrical fault, so that intelligent control valve prospect is more wide;And the electrical ball valve of the utility model does not need external power supply,
It can support outdoor longtime running, IC card gas in pre-payment, Intelligent liquid control system can be matched with flowmeter, can be used
In fluid line terminal pre-charge system.
The utility model is further described with reference to the accompanying drawing.
Detailed description of the invention
Attached drawing 1 is the utility model specific embodiment perspective view;
Attached drawing 2 is the utility model specific embodiment texture edge cross-sectional view;
Attached drawing 3 is the utility model specific embodiment A-A structure sectional view;
Attached drawing 4 is the utility model specific embodiment B-B structure sectional view, it is shown that the dry cell batteries distribution under seal closure
Structure;
Attached drawing 5 is the structural front view of the utility model specific embodiment deceleration device;
Attached drawing 6 is the structure top view of the utility model specific embodiment deceleration device;
Attached drawing 7 is that the distributed architecture that the utility model specific embodiment transition sector gear is switched with open and close stroke of valve shows
It is intended to;
It is valve body 1, medium channel 11, core 2, seal valve seat 3, valve rod 4, plat part 41, upper mounting plate 12, bracket 13, electronic
Executing agency 5, upper box 51, lower box 52, seal closure 53, dry cell batteries 54, deceleration device 55, output gear 551, transition fan
Shape gear 56, valve opening travel switch 57, close stroke of valve switch 58,
And cap 6, sealing element 64, compression valve seat body 71, shoulder 72, spring 8.
Specific embodiment
Specific embodiment of the utility model is battery powered low-power consumption electrical ball valve as shown in figs. 1-7.Such as Fig. 1 institute
Show comprising valve body 1, valve body 1 are equipped with medium channel 11, are equipped with core 2, seal valve seat component, core 2 in medium channel 11
On be connected with valve rod 4,4 end of valve rod, which is stretched out except the upper mounting plate 12 of valve body 1, connects electric operator 5, and 2 upper surface of core is set
Fluted, valve rod 4 is equipped with the plat part 41 cooperated with groove towards one end of core 2, and groove floor is inner concave arc surface structure, flat
The bottom surface in flat portion 41 has the convex globoidal being adapted to groove floor.Above-mentioned 4 bottom of valve rod is connect by plat part 41 with core 2,
Rotation valve rod 4 can drive core 2 to rotate, and valve rod 4 is installed in axle sleeve, and axle sleeve is installed in the through-hole of 1 upper mounting plate 12 of valve body,
1 upper mounting plate 12 of valve body is additionally provided with bracket 13, and electric operator 5 is installed on bracket 13.Above-mentioned seal valve seat component is located at ball
2 side of core, 2 other side of core, which is equipped with, compresses valve component, and compressing valve component includes being installed in medium channel 11 and cap
6, and 6 outer wall of cap and medium channel 11 are cooperated by the sealing of sealing element 64, and cap 6 is towards being equipped with peace in one end inner hole of core 2
Tankage is equipped in mounting groove and compresses valve seat, compresses and is equipped with spring 8 between valve seat and mounting groove inner wall, and spring 8 is installed on compression valve
Seat deviates from the side of core 2, and the resilient force of spring 8, which compresses valve seat and is extruded in core 2, makes core 2 and seal valve seat group
It is kept good sealing effectiveness between part.Seal valve seat component includes the seal valve seat 3 cooperated with core 2, seal valve seat 3 and valve
It is tightly connected between the medium channel 11 of body 1 by O-ring seal, promotion of the compression valve seat of 2 other side of core by spring 8
And be tightly attached in core 2, and initial pretightening force is provided, so that core 2 and seal valve seat 3 compress;When valve opening, core 2 is initial
In determining automatically under pretightning force effect, and be connected with 3 inner hole of seal valve seat;When closing valve, core 2 is not turned on 3 inner hole of seal valve seat,
Fluid pressure is formed in pipeline, Fluid pressure forms bigger promotion to core 2, forms additional pretightning force, this is additional pre-
Clamp force is more many times larger than initial pretightening force, forms closely sealing cooperation;Above-mentioned initial pretightening force of filling has the offer of spring 8, compares
It is small, ball valve initial pretightening force can be maximally reduced, so that reducing valve rod 4 runs torque.
And cap 6 includes cap body portion and cap end, cap outer end diameter is greater than cap body portion outer diameter, and cap 6 is along medium channel 11
Single port is inserted into medium channel 11, and cap end is connected through a screw thread with 11 Single port inner wall of medium channel, cap body portion and medium
It is connected between 11 inner wall of channel by sealing element 64, compresses valve seat and be installed in the inner hole in cap body portion.Mounting groove is arranged in cap body
Towards on one end inner hole wall of core 2, mounting groove includes the annular groove that internal diameter is greater than cap body portion inner hole aperture, annular groove part in portion
Side wall is also provided with the spring groove that bore is greater than annular groove, and mounting groove forms step-like groove structure, and compressing valve seat includes compressing
Valve seat body 71 compresses valve seat body 71 and is located in annular groove, compresses 71 one end of valve seat body and is connected on annular groove roof, presses
Tight 71 other end of valve seat body extends towards 2 direction of core, and the extended segment outer wall for compressing valve seat body 71 has shoulder 72 outstanding,
The shoulder 72 is embedded in spring groove and abuts with spring 8, and compress valve seat body 71 has and core 2 towards the port of core 2
The corresponding mating surface in surface.And sealing cooperation has explosion-proof between cap 6 and valve body 1, and valve body is fixed in the cap end of cap 6
In 1, cap body portion is that compression valve seat and spring 8 provide installation space.The mounting groove in cap body portion uses step-like multi-layer groove knot
Structure setting, so that compressing valve seat, spring 8 and mounting groove forms compact cooperation.
Electric operator 5 include cabinet and be installed in cabinet power supply module, direct current generator, deceleration device 55,
Transition sector gear 56 and travel switch, cabinet are made of upper box 51, lower box 52, and the open end of upper box 51 is also equipped with
Seal closure 53, power supply module are mounted in the upper box 51 of 53 lower section of seal closure, and power supply module includes dry cell batteries 54 and conducting
Or the controller of the power supply circuit of dry cell batteries 54 and direct current generator is disconnected, the controling circuit structure of controller is mature, can adopt
With the conventional control circuit of the prior art, directly using or be adaptively adjusted according to application environment, such as application No. is
Control circuit disclosed in CN201210372303.7 wireless radiofrequency remote-control intelligent Electric Actuator etc.;So for control
Device structure is not further improved design;Power supply module is connect with direct current generator, direct current generator output shaft and deceleration device 55
Input gear Synchronous Transmission, output gear 551 and the transition sector gear 56 of deceleration device 55 move synchronously, and travel switch includes
Valve opening travel switch 57 and pass stroke of valve switch 58, valve opening travel switch 57 and pass stroke of valve switch 58 are located at transition sector gear
56 occur shift reciprocately tracks both ends, transition sector gear 56 turn at the either end at both ends after with corresponding position
Travel switch formation presses contact, and travel switch forms electric signal with controller and connect.Above-mentioned Electric Actuator by controller and
Dry cell batteries 54 provide power drives, drive the reduction gearing rotation inside deceleration device 55 to promote final output torsion, work as end
When section gear drives transition sector gear 56 slowly to turn to valve opening travel switch 57, controller receives valve opening travel switch 57
Or the electric signal in place of stroke of valve switch 58 is closed, and automatically cut off immediately or turn-on power, while exporting switch valve status information.
The utility model is not limited to above-mentioned specific embodiment, and persons skilled in the art are according to the utility model public affairs
The content opened can be implemented the utility model or all using the utility model using other a variety of specific embodiments
Design structure and thinking, do simple change or change, both fall within the protection scope of the utility model.