CN201013906Y

CN201013906Y - Structure of flow quantity regulating valve

Info

Publication number: CN201013906Y
Application number: CNU2007200046119U
Authority: CN
Inventors: 赖日钦
Original assignee: HK ENTERPRISE CO Ltd
Current assignee: HK ENTERPRISE CO Ltd; HKC Co Ltd
Priority date: 2007-03-20
Filing date: 2007-03-20
Publication date: 2008-01-30
Anticipated expiration: 2017-03-20

Abstract

The utility model provides a structure of a flux regulating valve, aiming at accurately controlling the inlet and outlet liquid flux and solving the problem of easily causing error by judging the open and close degree of an improved and well-known manual type flux regulating valve based on visual observation or empirical value. A pushing piece is arranged in a seat body, one end of the pushing piece can act to-and-fro displacement through a stepping motor arranged at one end of the seat body and the other end of the pushing piece can push and support a valve seat arranged at the outer end of the seat body, a spring is connected between the valve seat and the seat body and can drive the pushing piece to act backward displacement in the seat body, and gear and regulate the distance between the valve seat and the valve so as to change the flux based on natural rotation or reverse rotation of the stepping motor, in addition, the utility model can accurately control the rotation performance with the stepping motor, thereby resulting in more accurate control of flow quantity.

Description

The structure of flow rate regulating valve

Technical field

The relevant a kind of adjustment valve of the utility model is meant a kind of structure that is applicable to the flow rate regulating valve of fluid especially.

Background technique

See also Fig. 1, shown in Figure 2, it is a kind of schematic representation of fuel gas supply valve 10 installings one flow rate regulating valve 20, the runner 11 of this fuel

gas supply valve

10,13 are provided with a valve port 12, and fuel gas supply valve 10 is provided with a flow rate regulating valve 20 corresponding to valve port 12 place's groups, this flow rate regulating valve 20 has the nut 23 that runs through inner bolt hole 25, this inner bolt hole 25 is worn pivot for a screw rod 22 and is screwed togather, one end of this screw rod 23 can enter in the fuel gas supply valve 10 and with respect to valve port 12, this end of this screw rod 23 is established an anti-drain gasket 21, the in addition terminal group of this screw rod 23 is established a knob 24 and but drive screw 22 is just changeing or reversing, these nut 25 spiral shells are located at fuel gas supply valve 10, the size of these fuel gas supply valve 10 control flow rate, be that mat is controlled the spacing size of 12 of this anti-drain gasket 21 and valve ports and adjusted, only, this kind adjusted the mode of flow, but must rely on Ocular estimate or value by rule of thumb fully, according to the distance of 23 on knob 24 and nut and judge, more can't link and can be from the size of far-end control with accurate adjustment flow with electronic control system, be with, this known flow rate regulating valve 20 is to remain to be improved.

The model utility content

The purpose of this utility model provides a kind of structure of flow rate regulating valve, improve known manually operated type flow rate regulating valve and judge that with Ocular estimate or empirical value it opens and closes size and easily gives birth to the problem of error, can control the turnover amount of fluid accurately, and this adjustment valve can be connected with electronic control system, carry out telecontrol, use easylier, adjust more accurate.

For achieving the above object, solution of the present utility model is: the structure of flow rate regulating valve includes a pedestal, a stepper motor, an ejector, a valve seat; Described pedestal two ends connect, described ejector be subjected to stepper motor driving and in pedestal shift reciprocately, described valve seat be positioned at the pedestal outside and with the ejector butt, establish a spring between valve seat and pedestal.

Described pedestal one end tool one heavy screw, the other end is established the perforation that an aperture dwindles, and heavy spiral shell communicates with perforation; The outer ring surface of described ejector is provided with outside thread, is screwed together in the heavy screw of pedestal, and the commentaries on classics that an end of this ejector is sheathed on stepper motor is driven by stepper motor and just changes or reverse in the heart.

Described valve seat upper ring cap is provided with at least one seal ring.

Described stepper motor connects several electric leads and extends, and the end of these several electric leads is in conjunction with a joint, and this joint can be linked in the electronic control system.

The two ends of described spring are incorporated into respectively on valve seat and the pedestal.

Be provided with a push rod between described valve seat and ejector, this push rod is worn pivot and is crossed the perforation of spring and pedestal and be connected to ejector.

Adopt such scheme, the structure of flow rate regulating valve of the present utility model mainly is to be to drive power with the stepper motor, utilize stepper motor can accurately control the characteristic of its rotation, the mat stepper motor is just changeing or when reversing, drive ejector shift reciprocately in pedestal, interlock is adjusted the distance between valve seat and valve port and then is changed the flow of fluid in the runner, and promptly flow rate regulating valve can be controlled the size of fluid flow accurately; And the mat stepper motor can be connected the size of realization telecontrol flow with electronic control system.

Description of drawings

Fig. 1 is the stereogram of fuel gas supply valve;

Fig. 2 overlooks part sectioned view for the A-A of Fig. 1;

Fig. 3 is a three-dimensional exploded view of the present utility model;

Fig. 4 is an assembling stereogram of the present utility model;

Fig. 5 is assembled in the stereogram of fuel gas supply valve for the utility model;

Fig. 6 A, Fig. 6 B, Fig. 6 C overlook part section action schematic representation for Fig. 5 B-B place.

The primary component symbol description

10 fuel gas supply valves, 11 influent stream roads, 12 valve ports 13 go out runner

20 adjust valve 21 anti-drain gasket 22 screw rods 23 nuts

24 knobs, 25 inner bolt holes

30 adjust valve 31 stepper motors 311 ratchet wheels 312 axle center

313 magnetites, 314 coils, 315 electric leads, 316 joints

32 ejectors, 322 wearing pieces, 323 outside threads, 324 heavy spinous foramens

332 groove 333 grooves of 33 pedestals, 331 outside threads

334 seal rings, 335 heavy screw 336 fins 337 button portions

338 fins, 339 button portions, 340 perforation, 34 fixed blocks

341 chases, 342 perforation, 35 push rods, 36 springs

37 valve seats, 371 chases, 372 clip heads, 373 counterbores

374 chases, 38 seal rings, 39 seal rings

Embodiment

See also Fig. 3 to shown in Figure 5, flow rate regulating valve 30 of the present utility model comprises a stepper motor 31, an ejector 32, a pedestal 33, a valve seat 37, and valve seat 37 is connected a spring 36 in addition with 33 of pedestals, and 32 of valve seat 37 and ejectors have a push rod 35;

312 outsides, axle center of this stepper motor 31 are provided with a ratchet wheel 311, and its anchor ring also is provided with several electric leads 315 and is connected with inner coil 314, terminal in addition binding one joint 316 of these several electric leads 315, and this joint 316 can be incorporated in the electronic control system;

The outer ring surface of this ejector 32 is provided with local outside thread 323, and the one end is established a heavy spinous foramen 324, and this heavy spinous foramen 324 is embedded at wherein by the ratchet wheel 31 on stepper motor 31 axle center 312, and it is held in addition and establishes a wearing piece 322, and this wearing piece 322 can be made as metal material.

The two ends of this pedestal 33 connect, the one end is established a heavy screw 335, end is established a perforation 340 in addition, this perforation 340 is connected with heavy screw 335, perforation 340 ends of this pedestal 33 are made as and slightly dwindle and its outer ring surface is provided with outside thread 331, a this thread section degree portion and a sheathed seal ring 39, this thread section end face is established a groove 332 and a groove 333 around 340 in perforation, insert the seal ring 334 of a round in this time groove 332, urgent fixed block 34 of inserting tool perforation 342 in the groove 333, the outer ring surface of this fixed block 34 has a ring chase 341, the end in addition of pedestal 33 extends two fins 336 that protrude, 338, this each fin 336,338 inner side surface bottom forms a button portion 337 of radially slightly protruding, 339, this two fin 336,338 button portion 337,339 can detain the bottom surface that is butted on stepper motor 31, make stepper motor 31 and pedestal 33 fit closely and fix;

This valve seat 37 is provided with a ring chase 371, these ring chase 371 ring sets are established a seal ring 38, the end in addition of valve seat 37 is established a clip head 372 that protrudes, this clip head 372 is provided with a ring chase 374, this clip head 372 is provided with a counterbore 373, this counterbore 373 is inserted a push rod 35, the sheathed spring 36 of push rod 35 outer ring surfaces, the in addition end of push rod 35 passes the perforation 340 of pedestal 33 and is connected to ejector 32, and the two ends of spring 36 are nested in respectively in the ring chase 374 of clip head 372 of the ring chase 341 of fixed block 34 and valve seat 37;

See also Fig. 6 A, Fig. 6 B, shown in Fig. 6 C, but flow rate regulating valve 30 screw locks of the present utility model are fixed in the runner 11 of

gas valve

10,13, stepper motor 31 can be accepted the instruction of electronic control system and rotate, rotate in axle center 31 2 and the related ratchet wheel 311 that makes rotates, because of the heavy spinous foramen 324 of ejector 32 is ratchet wheel 311 engagements with stepper motor 21, this ejector 32 is to rotate simultaneously according to equidirectional, and the outside thread 323 of ejector 32 is to be screwed together in the heavy screw 335 of pedestal 33, this ejector 32 is the displacements of advancing of outside thread 331 ends towards pedestal 33, this ratchet wheel 311 then still keeps engagement with the heavy spinous foramen 324 of ejector 32, this push rod 35 and valve seat 37 are to be pushed against by ejector 32 simultaneously and towards valve port 12 displacement (shown in Fig. 6 B) of advancing, this spring 36 is constantly drawn back and is stretched, and accumulate an elastic-restoring force, and the distance that valve seat 37 advances is the instruction of stepper motor 31 being assigned according to electronic control system and deciding, this stepper motor 31 rotates certain track again according to instruction, please consult shown in Fig. 6 C again, when the electronic control system out code, valve seat 37 is to move on displacement and valve port 12 is closed fully, makes the fluid in the influent stream road 11 can't be to going out runner 13; Otherwise, when electronic control system is assigned open command, stepper motor 31 is certain track that reverses according to instruction, ejector 32 also reverses and simultaneously towards the direction displacement of stepper motor 31, valve seat 37 and push rod 35 then mat spring 36 elastic-restoring force and be pulled away from valve port 12 1 distances together, make fluid flow to out runner 13 by valve port 12 from influent stream road 11; In sum, the utlity model has following advantage:

1, its stepper motor 31 of the utility model mat can be connected with electronic control system, makes when adjusting flow, must not handle to on-the-spot, and can handle in far-end.

2, the rotation step number of the utility model mat stepper motor 31 can be precisely controlled, makes the flow rate regulating valve size of control flow rate accurately relatively.

Claims

1. the structure of flow rate regulating valve is characterized in that: include a pedestal, a stepper motor, an ejector, a valve seat; Described pedestal two ends connect, described ejector be subjected to stepper motor driving and in pedestal shift reciprocately, described valve seat be positioned at the pedestal outside and with the ejector butt, establish a spring between valve seat and pedestal.

2. the structure of flow rate regulating valve as claimed in claim 1 is characterized in that: described pedestal one end tool one heavy screw, and the other end is established the perforation that an aperture dwindles, and heavy spiral shell communicates with perforation; The outer ring surface of described ejector is provided with outside thread, is screwed together in the heavy screw of pedestal, and an end of this ejector is sheathed on the axle center of stepper motor, driven by stepper motor and just changes or reverse.

3. the structure of flow rate regulating valve as claimed in claim 1, it is characterized in that: described valve seat upper ring cap is provided with at least one seal ring.

4. the structure of flow rate regulating valve as claimed in claim 1, it is characterized in that: described stepper motor connects several electric leads and extends, and the end of these several electric leads is in conjunction with a joint, and this joint can be connected in the electronic control system.

5. the structure of flow rate regulating valve as claimed in claim 1, it is characterized in that: the two ends of described spring are incorporated into respectively on valve seat and the pedestal.

6. the structure of flow rate regulating valve as claimed in claim 1, it is characterized in that: be provided with a push rod between described valve seat and ejector, this push rod is worn pivot and is crossed the perforation of spring and pedestal and be connected to ejector.