CN201306504Y

CN201306504Y - Motor valve

Info

Publication number: CN201306504Y
Application number: CNU2008201663098U
Authority: CN
Inventors: 赵宪民
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-10-17
Filing date: 2008-10-17
Publication date: 2009-09-09
Anticipated expiration: 2018-10-17

Abstract

The utility model discloses a motor valve which is mainly used for controlling the opening or the closing of various intelligent gas meters. The motor valve comprises a valve body, a valve cap and an executive component, the valve body is provided with an air inlet and an air outlet, the valve cap is mounted on the side of the air outlet, and the executive component is connected with the valve cap. The motor valve is characterized in that the valve body adopts the rectangular valve body lack of a corner, the air outlet is arranged obliquely, and the valve cap adopts the flip-type valve cap. When the valve cap of the motor valve is opened, the airflow passes through the valve body in a straight line, thereby obtaining minimal pressure loss and maximal flow rate, and the motor valve overcomes the existing defects of great air pressure loss and unreliable switch motion in the prior art. Moreover, the motor valve has the advantages of reasonable structure, reliable switch, great flow rate, low air pressure loss, and the like.

Description

A kind of motor valve

Technical field

The utility model relates to a kind of on-off valve, and particularly a kind of motor valve is mainly used in the unlatching or the closing control of all kinds of intelligent gas meters.

Background technique

Intelligent gas meter adopts the motor valve to control the open and close of gas meter as actuator, under the relatively limited situation in general civilian intelligent gas meter space in table, adopts screw type or dropout type built-in motor valve more.Referring to Fig. 1, Fig. 2, prior art built-in motor valve comprises the valve gap 2 ' and the motor gear box 3 ' of valve body 1 ', band rubber corrugated pipe 21 ', valve body 1 ' is provided with suction port 11 ' and air outlet 12 ', the valve gap 2 ' of band rubber corrugated pipe 21 ' is contained in the valve body 1 ', executive module is contained in the motor gear box 3 ', and executive module is connected with the valve gap 2 ' of band rubber corrugated pipe 21 '.There is following defective in this motor valve when using: 1, because suction port 11 ' and air outlet 12 ' are 90 ° of angles, not not point-blank, motor valve deficient airway, be installed in the motor valve on the gas meter intake interface, be actually to gas meter and increased the local crushing of an air-flow, its value of pressure loss is that gas flow is directly proportional with gas flow rate, makes the total crushing of gas meter increase, and influences the performance and the precision of gas meter; 2, the most of working state of motor valve is for leaving the valve state, its rubber valve gap bellows is compressive state for a long time, contain the big macromolecule alkane of viscosity in the combustion gas, become rigid high molecular polymer at certain hour with autohemagglutination under the temperature, these polymer bondings will cause the motor valve normally to close on rubber valve gap bellows the time, the dropout type motor valve of cutting out by spring particularly, it is tight even can't to close the problem of valve even more serious to close valve, causes motor valve long-term stable operation to be affected.

Chinese patent ZL03221692.0 " intelligent gas meter motor valve ", a kind of follow-on motor valve for gas meter is disclosed, the executive module that it adopts, be that the micromachine of the break-make driving mechanism of valve responds and drives sealing plug and open and close valve and be swift in motion, make the functional reliability of motor valve that raising arranged.Yet the two big defectives that aforementioned prior art motor valve exists still fail fundamentally to overcome.

Summary of the invention

Technical problem to be solved in the utility model is, overcomes big, the insecure defective of switch motion of atmospheric pressure lost that prior art exists, provide a kind of rational in infrastructure, switch reliable, the motor valve of big flow, low pressure loss.

The technical scheme in the invention for solving the above technical problem is: this motor valve, comprise valve body, valve gap and executive module, valve body is provided with suction port and air outlet, valve gap is contained in air outlet side, executive module is connected with valve gap, it is characterized in that: described valve body is a unfilled corner rectangle valve body, and its air outlet is provided with and is the oblique installing type air outlet, and described valve gap adopts the hinge-lid type valve gap.When valve gap was opened, air-flow straight-line pass valve body can obtain the crushing of minimum, maximum flow.

The described valve gap of motor valve described in the utility model comprises that valve gap body, valve gap support, valve gap connect mandrel and valve bonnet seal part, described valve gap support is contained in by the air outlet, valve body bottom, the lower end of valve gap body is embedded in the valve gap support, valve gap connects in the perforation that mandrel is set on the valve gap support that is embedded in together and valve gap body, the valve gap body is connected with the valve gap support is active, the valve bonnet seal part is wrapped on the valve gap body, closely contacts with the air outlet of valve body when closing valve.The hinge-lid type valve gap has dwindled the volume of whole motor valve, and switch is flexible, has solved the normal closing problem of motor valve.

The described executive module of motor valve described in the utility model comprises the motor case, gearbox, motor, driving gear, driven internal gear, the flat thread plate, drive link and drive link guide rail, described driving gear is installed on the output shaft of motor, driven internal gear and driving gear engagement, the flat thread plate is stirred with driven internal gear fit and is connected, drive link and the engagement of plane thread plate, described drive link assembly is in the drive link guide rail, the drive link head is inlaid in the chute of valve gap body center, described motor and driving gear are contained in the motor case, driven internal gear, flat thread plate and drive link guide rail are contained in the gearbox.Executive module reliable transmission, action are accurately.

The described drive link head of motor valve described in the utility model has the cross minor axis, and the cross minor axis is inlaid in the chute of valve gap body center.The cross minor axis makes that drive link and valve gap are connected firmly, transmission is stable.

On the round bar at the cross minor axis rear portion of the described drive link of motor valve described in the utility model the drive link Sealing is housed, described drive link Sealing central bore is wrapped on the round bar at drive link cross minor axis rear portion, and the excircle of drive link Sealing and plane and valve body and motor gear box closely mate.The drive link design of rubber seal, the combustion gas when sealing when guaranteeing to close valve and valve gap unlatching work in the internal pipeline is not to the motor gear box internal leakage.

The suction port of the described valve body of motor valve described in the utility model is fixed with connecting plate.Change the use that connecting plate can adapt to the gas meter of various different sizes easily.

The plane, air outlet of the described valve body of motor valve described in the utility model and the bottom surface angle of cuboid are 40～50 °.It is straight-through that air-flow is convenient in the valve body air outlet of oblique installing type, reduces air pressure and decrease.

The described drive link guide rail of motor valve described in the utility model adopts the split type guide rail of two halves sheet combination.Convenient processing and installation.

The utility model compared with prior art has the following advantages: the utility model motor valve arrangement is rationally compact, and in the table of most production firms of packing under the situation that does not change existing civilian box hat gas meter external dimension, Applicable scope is wide.1, designs band unfilled corner rectangle valve body, oblique installing type air outlet and hinge-lid type valve gap, made suction port and position, air outlet guarantee the combustion gas straight-line pass substantially, reduced the pressure loss on the gas meter, strengthened gas flow.Its crushing declines to a great extent compared with the prior art, and through the test measuring and calculating, the crushing of the utility model motor valve only is 40% of a prior art motor valve, reduces the gas company cost thereby be beneficial to.2, adopted by valve bonnet seal part and valve gap body assembly type valve gap, and drive link Sealing, the valve gap that replaces prior art rubber valve gap and bellows integral structure, thoroughly solved because the bonding motor valve that causes of rubber valve gap bellows can't closing problem, guarantee that the motor threshold switch is reliable, use stable.3, taked valve gap support and valve gap connecting core axle construction that valve gap is installed on the valve body; Design driving gear simultaneously and driven the driven internal gear that is engaged with, driven internal gear drives with it fit and stirs the flat thread plate of connection, the executive module of the moving drive link that is engaged with of flat thread strip, to rotatablely move and convert straight line motion to, the switch of the drive link application valve cover of horizontal movement, compact structure, volume are little, stable action, put in place.

Description of drawings

Fig. 1 is a prior art motor valve arrangement schematic perspective view.

Fig. 2 is the internal structure schematic representation of Fig. 1, the band broken section.

Fig. 3 is the structural upright schematic representation 1 of the utility model embodiment motor valve.

Fig. 4 is the internal structure cross-sectional schematic (A-A analyses and observe) of Fig. 3.

Fig. 5 is the B-B sectional view of Fig. 3.

Fig. 6 is the structural upright schematic representation 2 of the utility model embodiment motor valve.

Embodiment

Below by embodiment, in conjunction with the accompanying drawings the utility model is further elaborated:

Referring to Fig. 3～Fig. 6, embodiment's motor valve comprises valve body 2, valve gap and executive module.Valve body 2 is provided with suction port 21 and air outlet 22, valve body 2 is a unfilled corner rectangle valve body, its air outlet 22 is provided with and is the oblique installing type air outlet, 22 planes, air outlet of valve body 2 can be designed to 40～50 ° according to different usage requirements with the bottom surface angle of cuboid, present embodiment considers that the valve gap switch motion easily puts in place, and the size of air outlet 22, this angle is designed to 42 °; The suction port 21 of valve body 2 is fixed with connecting plate 1, and connecting plate 1 is fixedlyed connected with valve body 2 by screw, and connecting plate 1 is born the function that is connected with gas meter, and transposing connecting plate 1 can make the motor valve use with the gas meter coupling of different size easily.Valve gap adopts the hinge-lid type valve gap, and it comprises that valve gap body 5, valve gap support 3, valve gap connect mandrel 51 and valve bonnet seal part 4; Valve gap support 3 by screw on valve body 2 bottoms, the lower end of valve gap body 5 is embedded in the valve gap support 3, be embedded in together valve gap support 3 and the perforation of valve gap body 5 in wear into that valve gap is connected mandrel 51, connect mandrel 51 by valve gap and make

valve gap body

5 and 3 active connections of valve gap support, valve gap body 5 can connect mandrel 51 around valve gap and rotate flexibly under executive module control, finish the unlatching of valve gap or close present embodiment valve gap connection mandrel 51 employing stainless steel mandrels; Valve bonnet seal part 4 is wrapped on the valve gap body 5, closely contacts with the air outlet 22 of valve body when closing valve, guarantees to close the back and seals air tight.Executive module comprises motor case, gearbox, motor 10, driving gear 11, driven internal gear 12, flat thread plate 13, drive link 7 and drive link guide rail 14; Driving gear 11 is installed on the output shaft of motor 10, driven internal gear 12 and driving gear 11 engagements, flat thread plate 13 is stirred with driven internal gear 12 fits and is connected, drive

link

7 and 13 engagements of plane thread plate, drive link 7 heads have the cross minor axis, the cross minor axis is inlaid in the center chute of valve gap body 5, finishes firm connection the at drive link 7 and valve gap body 5 centers, promptly finishes executive module and is connected with valve gap; On the round bar at the cross minor axis rear portion of drive link 7 drive link Sealing 6 is housed, the central bore of drive link Sealing 6 is wrapped on the round bar at drive link 7 cross minor axis rear portions, the excircle of drive link Sealing 6 and plane and valve body 2 and motor gear box 8 closely mate, and inflammable gas does not enter motor gear box 8 inside when sealing when closing valve with assurance and valve gap unlatching work; Drive link 7 assemblies are in drive link guide rail 14, and embodiment is in order to process with easy for installation, and drive link guide rail 14 adopts the split type guide rail of two halves sheet combination; Embodiment's motor 10 is selected direct-flow micromachine for use, motor case, gearbox adopt motor gear box 8, motor gear box 8 and valve body 2 are connected by screw, motor gear box 8 has motor case and two chambers of gearbox, the motor 10 that driving gear 11 is housed on the output shaft is installed in the motor case, the motor case motor case lid 9 that closes is fixed by screw again; Driven internal gear 12, flat thread plate 13 and drive link guide rail 14 are installed on the gearbox internal fixation axle, the gearbox gear shift cover 15 that closes, with gear shift cover 15 and fixedly driving fit of gearbox, gear shift cover 15 is fixed on drive link guide rail 14 in the gearbox simultaneously by screw.

During this motor valve work, drive driving gear 11 by motor 10, drive driven internal gear 12 by driving gear 11, and through driven internal gear 12 decelerations, by driven internal gear 12 rotating force is delivered to flat thread plate 13 again, drive drive link 7 by flat thread plate 13 then, drive link 7 will rotatablely move under the guiding of drive link guide rail 14 and be transformed into horizontal rectilinear motion.It is that circular movement is made in the center of circle that the hinge-lid type valve gap that the promotion of the cross minor axis of drive link 7 is assembled by valve bonnet seal part 4 and valve gap body 5 when drive link 7 advances is connected mandrel 51 with valve gap, the hinge-lid type valve gap finally is pushed on the air outlet 22 that is incorporated into valve body 2, by the air outlet 22 of valve bonnet seal part 4 complete closed valve bodies 2, finish the pass valve events.Equally, change the sense of rotation of motor 10, drive link 7 is done and preceding rightabout horizontal rectilinear motion, this moment, drive link 7 transmitted pulling force to the hinge-lid type valve gap, drove the hinge-lid type valve gap and left air outlet 22, finished out valve events.---driving valve---closes the valve events circulation need to close valve according to use, realizes the open and close control of gas meter.

The utility model motor valve reset condition has auto-lock function for opening the valve state.

Claims

1, a kind of motor valve, comprise valve body, valve gap and executive module, valve body is provided with suction port and air outlet, valve gap is contained in air outlet side, executive module is connected with valve gap, it is characterized in that: described valve body is a unfilled corner rectangle valve body, and its air outlet is provided with and is the oblique installing type air outlet, and described valve gap adopts the hinge-lid type valve gap.

2, motor valve according to claim 1, it is characterized in that: described valve gap comprises that valve gap body, valve gap support, valve gap connect mandrel and valve bonnet seal part, described valve gap support is contained in by the air outlet, valve body bottom, the lower end of valve gap body is embedded in the valve gap support, valve gap connects in the perforation that mandrel is set on the valve gap support that is embedded in together and valve gap body, the valve gap body is connected with the valve gap support is active, and the valve bonnet seal part is wrapped on the valve gap body, closely contacts with the air outlet of valve body when closing valve.

3, motor valve according to claim 2, it is characterized in that: described executive module comprises the motor case, gearbox, motor, driving gear, driven internal gear, the flat thread plate, drive link and drive link guide rail, described driving gear is installed on the output shaft of motor, driven internal gear and driving gear engagement, the flat thread plate is stirred with driven internal gear fit and is connected, drive link and the engagement of plane thread plate, described drive link assembly is in the drive link guide rail, the drive link head is inlaid in the chute of valve gap center, described motor and driving gear are contained in the motor case, driven internal gear, flat thread plate and drive link guide rail are contained in the gearbox.

4, motor valve according to claim 3 is characterized in that: described drive link head has the cross minor axis, and the cross minor axis is inlaid in the chute of valve gap body center.

5, motor valve according to claim 4, it is characterized in that: on the round bar at the cross minor axis rear portion of described drive link the drive link Sealing is housed, described drive link Sealing central bore is wrapped on the round bar at drive link cross minor axis rear portion, and the excircle of drive link Sealing and plane and valve body and motor gear box closely mate.

6, motor valve according to claim 5, it is characterized in that: the suction port of described valve body is fixed with connecting plate.

7, motor valve according to claim 6 is characterized in that: the plane, air outlet of described valve body and the bottom surface angle of cuboid are 40～50 °.

8, motor valve according to claim 7 is characterized in that: described drive link guide rail adopts the split type guide rail of two halves sheet combination.