CN2269548Y

CN2269548Y - Gear split multiple blade regulating valve

Info

Publication number: CN2269548Y
Application number: CN 96223583
Authority: CN
Inventors: 汪允炎
Original assignee: HAIFENG AIR CONDITIONING EQUIPMENT CO Ltd NANTONG CITY
Current assignee: HAIFENG AIR CONDITIONING EQUIPMENT CO Ltd NANTONG CITY
Priority date: 1996-08-31
Filing date: 1996-08-31
Publication date: 1997-12-03
Anticipated expiration: 2006-08-31

Abstract

The utility model discloses a gear split multi-blade regulating valve used for regulating the size of flow rate in a pipe in air conditioning engineering, which solves the problem that blade axles and a drive mechanism of the existing valve are easy to rust and seize and is characterized in that the ends of the blade axles are provided with plastic collars; each end of the blade axle is provided with a drive gear; the drive gears are orderly engaged with each other in a linear chain type to enable the blade and the drive mechanism to keep agile and have long service life; the rotation angles of the blade can be continuously and discretionarily regulated from 0-+90DEG, or 0--90DEC actualizing the size regulation of air volume.

Description

Gear is split leafy control valve

The utility model relates to a kind of valve of controlling gas flow size in the pipeline, is used to open, close and regulate the leafy control valve of air quantity size on air conditioner in specifically a kind of Air-conditioning Engineering, the ventilating engineering and the airduct.

At present China the general rod-pulling type in this field sealed split leafy control valve by through the authorization of National Construction Committee architecture science research institute, 1975 National Construction Committee (1975) build to send out and establish the processing of No. 108 civilian approved for releases of word " heating and ventilation national standard atlas T308-1 " specified standard and use, use till today always.Facts have proved, this leafy control valve is short service life, poor reliability, because steel and iron parts directly is connected between its structure blade axle and framework, and each blade is each other by the open degree of parallelogram linkage pull bar adjusted in concert blade, and the time one is long, sharf easily gets rusty and is stuck, the node kinematic pair of parallelogram linkage " expands and stops " also because part gets rusty, and the result manually can't move valve opening and closing, the more difficult promotion of electronic, pneumatic actuator.

The purpose of this utility model provides a kind of improved gear and splits leafy control valve, makes its blade rotation flexible, and transmission is convenient, long service life, reliability height.

This reality has novel concrete technical scheme to be achieved in that gear splits leafy control valve, parallel and blade that can pivot is formed by device 2-10 sheet in the rectangular frame, it is characterized in that blade fixedlys connected with sharf, the blade axle head is with neck ring, the neck ring outer rim is passed rectangular frame side plate hole and rectangular frame is loose fit, each sharf stretches out a fixedly connected gear on the same side side plate axially outer end of rectangular frame, is the straight chain formula between each gear mutually and meshes successively.A sharf is a driving shaft in the blade, by gear drive, promote all the other driven shafts, driving shaft is connected with manual draw bar or is connected with Automatic Control Component such as electronic, pneumatic, realization is to the keying degree control of valve blade, make the anglec of rotation of each blade rotate adjustable arbitrarily continuously in pairs in opposite directions from 0～± 90 degree, neck ring and gear are all used nonmetallic materials such as non-corrosive, plastics that coefficient of friction is little, nylon, also availablely certainly have above performance, guarantee its motion other suitable materials nimbly and freely.

The utility model remains sharf and rotates flexibly owing to having adopted nylon or plastics neck ring, having avoided sharf directly to be connected the corrosion stuck phenomenon with the framework intermetallic; Because the transmission of plastic gear straight chain formula is adopted in the transmission of each sharf, so there is not the bloated phenomenon of stopping of each node kinematic pair corrosion of multinode parallelogram, make transmission mechanism light flexibly all the time, not only can manually control, the leafy damper blade angles of automatic control such as it is electronic, pneumatic also to suit are rotated adjustable arbitrarily continuously in pairs in opposite directions from 0～± 90 degree, realization is to the adjusting of air quantity size.The practice result proof reaches its intended purposes and effect, long service life.

Below in conjunction with accompanying drawing is that the utility model is described in further detail for embodiment.

Fig. 1 splits leafy control valve front view for gear, among the figure 1, be driving shaft, and 2, be gear, 3, be rectangular frame, 4, be blade, 5, be sharf, 6, be neck ring.

Fig. 2 splits leafy control valve left view for gear, among the figure: 1, be driving shaft.2, be gear, 3, be rectangular frame.

Fig. 3 is the A-A cutaway view among Fig. 1, among the figure 3, be rectangular frame, 4, be blade, blade plane and the vertical line angle of this moment is about ± 45 degree, is half-open semi-closure state, when angle is 0 when spending, this control valve all bars up, and air-flow is 0, when angle is ± 90 when spending, this control valve is all opened, the throughput maximum.5, be sharf.

Fig. 4 is the B node amplification view among Fig. 1, among the figure: 3, be the rectangular frame side plate, 4, be blade, 5, be sharf, 6, be neck ring.

Claims

1, to split leafy control valve parallel and form around the blade that sharf rotates by device 2-10 sheet in the rectangular frame for gear, and it is held to levy and is that the sharf axle head is with neck ring, and side plate hole and framework that the neck ring outer rim is passed rectangular frame are loose fit; Each sharf stretches out on the same side axle head of rectangular frame fixes a gear, is the straight chain formula between each gear mutually and meshes successively.

2, split leafy control valve according to the described gear of claim 1, it is characterized in that an axle is a driving shaft in the sharf, all the other are driven shaft.

3, split leafy control valve according to claim 1 or 2 described gears, it is characterized in that driving shaft links to each other with manual control lever or link to each other with Automatic Control Component such as electronic, pneumatic.

4, split leafy control valve according to the described gear of claim 1, it is characterized in that neck ring and gear make by nonmetallic materials such as non-corrosive, plastics that coefficient of friction is little, nylon.

5, split leafy control valve according to the described gear of claim 1, it is characterized in that each blade pivots angle from the rotation in opposite directions in pairs of 0～± 90 degree, adjustable arbitrarily continuously.