FI104995B - Control structure of valve for controlling gaseous media such as airflow - Google Patents

Description

104995

Control structure of valve for controlling gaseous media such as airflow

Reglerkonstrtion för en ventil som reglerar et gasformigt medium säsom en luftströmning 5

The invention relates to a valve structure for a gaseous medium such as an air flow regulating valve.

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As regards the prior art, we refer to the following references: FI patent application 961481, FI patent 54 742 and US patent 4 163 726.

This application discloses a completely new type of valve control solution which enables reliable control of precisely the various control positions. The application discloses a so-called. a new regulator design for an iris regulator type airflow control valve that is precise in regulation and yet simple in design.

The regulator comprises an internal gear knob with a toothed shaft,. 20 which is passed through the channel body and into which is inclined through the teeth of one end of the shaft

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: further moving the hoop. The strap portion further adjusts the airflow adjusting structure, such as louvres, directly or through the adjusting wire • · «· ·: ··. The regulator body itself is positioned outside and fixed to the duct. Through the gear transmission, the turning motion of the adjustment knob is further directed to the rim portion or the like. Through the rim portion: T: 25 adjusting movement is further transmitted to a gaseous medium such as an air flow regulating structure such as a truncated conical structure.

• · · • · · • t · *. · · V · The valve control structure of the invention is characterized in that the control knob *: ··: comprises a tooth to which the shaft counter-tooth functionally engages, wherein: <§ <: 30 moves the air flow regulating structure directly or through the intermediate part (s).

• · · • 1 · «· • I I • · 2 104995

The invention will now be described with reference to some preferred embodiments of the invention shown in the figures of the accompanying drawings, but which are not intended to be limited thereto.

Fig. 1A illustrates an air flow damper lattice structure.

Fig. IB illustrates the operation of the regulator structure according to the invention in the so-called fig. with the iris controller.

Fig. 1C is a schematic cross-sectional view of the control knob, and the operating principle of the control structure is explained on the basis of the figure.

Fig. 1D illustrates the principle of adjusting the lattice structure according to the invention. The tooth is used to move the inner rim of the channel and the associated wire 15 which adjusts the position of the slats.

Fig. 2A is a cross-sectional view of a control knob assembly according to the invention prior to assembly.

Fig. 2B shows an assembly according to Fig. 2A.

2.,. ί Fig. 2C shows the control knob assembly in assembled and partial section.

Fig. 3 is an axonometric view of the control knob according to the invention and spaced apart from 25 channels.

1A is a schematic view of a gaseous medium such as an air flow regulating valve 300 and its regulating portion 200. The regulating portion 200 adjusts to the channel 100. . * set flap 300 of valve. Valve 300 is preferably so-called. irissäädin.

: Y: 30 Preferably, the lattice structure Sj, S2 ..., wherein the interlaced slats Sj, S2 ... is: pivotable to different adjustment positions. Thus, the lamellar structures S1, S2 ... form 3 104995 open and close so-called. iris regulator, ie a valve for controlling the air flow rate. The slats S1, S2 ... provide a frustoconical structure. In accordance with the invention, the pivoting position of the slats Sj, S2 ... is controlled by a regulating member 200 which comprises a gear wheel transmission by which the rotational movement of the regulating knob 11 of the regulating member 200 is further transmitted to a rim 13 located inside the channel 100 to which one or more the associated control wire tj and / or t2 as the wire is operatively connected. The control wires tj, t2 · .. are preferably of rigid material, so that they can receive the thrust without buckling and the tensile force respectively. Thus, they can be used to adjust both the opening and closing movement 10 of the slats S1, S2 ... when forming frustoconical structures having different cone angles. The rim 13 is moved by rotating the control knob 11 of the regulator part 200 of the valve 300. The rotational movement of the knob 11 is transmitted through the gear transmission 12a, J, 12b to the rim 13 and further from the associated torsion tj, t2 · .. to the . irissäätimelle.

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The representation of Figure IB is also principled and illustrative. The thread tj, t2 · .. is still fluidly connected to one or more slats Sj, S2 ... The slats Sj, S2 are overlapping in their longitudinal edges and pivotally about their ends: to provide a cone angle for the half-conical structure Sj, S2. .. When the airflow is reduced as little as possible, the louvres along the channel 100 and respectively when the throttle is increased, the louvres are set in a truncated cone structure as shown in Fig. 1A. One thread tj or several threads tj, t2-- - connected at one end ··· V 1 to the rim 13 and at the other end to the channel 100 on its inner wall The threads tj, t2 · .. are * freely and movably passed through the through holes 25 of the outer lugs of the slats ej, e2 · ..

1C illustrates a cross-sectional view of the adjusting knob 11. The end piece «10c can be rotated to the desired pivoting position and then locked by a screw Rj to the spindle part 10b. The adjusting knob 11 is a cavity structure having a cavity F in the inner space of the cavity Dj:: 30. a second gear 12b, which again is inside the channel 100 and moves the toothed rim 13 to which the control wires tj, t2 moving the slats are connected at one end. Between the shoulder 11b of the adjusting knob 11 and the shoulder 10a 'above the fixed mandrel 10a, there is a spring 14 which compresses, by spring force, a portion of its engagement 11c against the engagement 10d of the mandrel end 10c. The teeth 12a and 12b may also be formed on the axis J to form a continuous teeth extending over the entire axis J.

If desired, screw R2 can be used to lock part 10c into part 11. In normal use, screw R2 is not needed and is not used. In this case, adjustment of valve 300 is not possible. Portion 10c of the related part of the figure 50 is shown by arrow arrow I. Chapter I, can be read at the rotary member 11 connected to the scale 15 päällyslaipan turning station 11, Part E and the air flow control position. The adjustability of the cover flange 15 relative to the adjustment knob 11 allows calibration of the valve before commissioning. The parts 15 and the part 11 are connected to each other by teeth C 1 and 15 C 2 so that the part 15 can be rotated if necessary, e.g., when calibrating the valve 300 with respect to the part 11.

In the circumferential groove U on the upper surface of the part 15, there is a need for moving a so-called. sweeping memory 16. Kun. . . the control valve slats S 1, S 2 ... are to be moved by moving the rim 13, becomes part 11 •• Il

: 20 to be rotated. This is done by moving parts in the direction of the arrow 11 in Figure 1C

·: ··· as shown, whereby the toothing 11c of the part 11 differs from the counter-tooth 10d of the part 10c, and the adjusting knob 11 is freely rotatable with respect to the spindle 10 when performing the adjustment of the air flow. Then, by turning the adjusting knob, the gear 12a is rotated and: T: the gear 12b is further moved and the rim 13 to which the control wires tj, t2- .. are operatively engaged and moved by the slats Sj, S2 .... Thus slats Sj, S2 ...

• »· v; are movable and the air flow in duct 100 is adjustable by slats Sj, S2 ...

• · · V · by changing the taper angle of the truncated cone.

Fig. 1D illustrates the introduction of the adjusting movement 30 of the invention into the inner circumferential rim structure 13 of the channel 100. The strut structure comprises a second side surface engaging a gear 13 'engaging a counter-gear 12b' of the gear J 12b 510995. The gear 12b extends at least partially inside the channel 100. Thus, when rotating the shaft J, the strap 13 and the associated adjusting thread tj and / or t2 · .., which are provided in a continuous manner on the tabs ej, e2- on the outer surface of the slats, are moved. of openings e}, e ^ - ·. through and further adhering to the inner body 5 of the channel 100 or its associated portion. The control threads tj may be one or more. The control wire tj, t2 · .. is a rigid structure and is freely passed through the openings ej, e ^ .... At one end, wire tj, t2 ··· is attached to channel 100 or its associated structure.

Fig. 2A is a cross-sectional view of the regulator structure 200 according to the invention. The regulator structure 200 according to the invention is rotationally symmetrical with respect to the central axis (X). The upper body member 15 is spaced apart from the rest of the structure to represent the member 15. The gear 12a is adapted to engage the inner peripheral tooth F of the adjustment knob 11 cavity Dj. The gear 12a comprises a gear 12a 'and the gear 12b respectively comprises a gear 12b'. The strut 13 moves the rods tj and / or tj to position the slats Sj, S2 ... in the flow throttle positions. Between the shoulder 11b of the control knob body 11b and the shoulder 10a 'above the fixed spindle 10a is a spring 14 which compresses 20 by spring force on a portion of its engagement 11c against the engagement 10d of the end member 10c of the mandrel 10c. The part 10c comprises a shoulder 40 to which the reading arrow I of the plate 50 is attached. An end flange 15 is connected to the part 11. The parts 15 and 11 are connected by means of teeth C 1, C 2 to each other · · V: however, so that the part 15 can be rotated with respect to the part 11 when calibrating the valve. The mandrel 10 is a non-rotatable integral structural member associated with the body R, the mandrel portions 10a, 10b of which are made in one piece, either by casting or by turning a blank.

• 1 «•»

Part 10c is connected to part 10b by screw Rj.

Figure 2B shows the structure of Figure 2A in assembled form. The so-called sooting memory 16 • · · · ... 'is located on the upper surface portion 15 in the circumferential groove U. Before rib structure opened Y: 30 completely, for example, when sweeping and cleaning the channels are placed portion 15 * «U sweeping circumferential groove memory 16 the number of arrow I want. When the valve is opened and this. 104 995 No nuohoksen then after closed, the part is rotated 11 so that the cleaning memory 16 immediately when reading from the direction of arrow I, and hits it. The valve is then returned to its original setting position. an inclined peripheral surface portion 15 is a scale E so that the valve opening position is read in the reading direction of the arrow I, and split.

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The figure shows an embodiment of the invention in which the gear transmission consists of two different gears 12a and 12b. This allows the selection of the appropriate mediation. It is possible to carry out an embodiment of the invention in which the gear transmission is implemented such that there is a single elongated gear which is introduced through the through hole P of the channel 100 into the gear 13 'of the rim 13. An embodiment is also possible within the scope of the invention in which the rotary drive is taken from the peripheral gear F. which is outside the control knob 11. Therefore, the invention is not intended to be limited to the preferred embodiment of the invention as shown in the figures.

Fig. 2C shows an assembly according to the invention in assembled form. The figure shows a screw Rj for engaging part 10c in part 10b in a fixed position. At its inner face, part 10c comprises an annular circumferential gear 10d engaging an adjusting knob 11 against a corresponding annular circumferential gear 11c. When the control knob 11 is moved downwardly in the direction shown by the arrow Lj against the spring force of the spring 14,: §:: 20 the teeth 10d and 11c are separated from each other so that the knob 11 is rotatable and thus the opening position of the valve 300 is adjustable.

Fig. 3 shows the control knob 11 in a separate axonometric view. The adjusting knob 11 • · fv · will be located outside the channel 100 and the gear wheel 12 12b associated with the adjusting member 200 mounted on the counter-tooth 13 ′ of the rim 13 is guided through the passage ··· • · 100 through the channel 100 rim 13.

• · · *. By moving the strap 13, the associated regulator structure is moved, preferably by means of the threads tj, t2 · .. or at least one of the threads tj.

B B

B ·: Y: 30 «« · • · «« «

Claims (7)

A control structure (200) for a valve (300) which regulates a gaseous medium, such as an air flow, said valve (300) comprising valves (Sj, S2 ...) or some other structure which regulates the air flow, which can be displaced by rotation on a control knob (11) of the control part (200), characterized in that the control knob (11) comprises a gear (F), with which a counter-gear (12a ') on a shaft (J) is operatively engaged, a duct (100) located structure (Sj, S2 ...) which regulates the air flow is set in motion directly or by means of one or more intermediate parts. Valve (300) according to claim 1, characterized in that the control knob (11) comprises an internal gear ring (F), which borders an inner free space (Dj) in a body of the control knob (11). 15 Valve (300) according to any of the preceding claims, characterized in that the counter-gear (12a ') lies on a gear (12a) on the shaft (J) and that a second gear (12b) is provided, the gear (12b') of which ) is engaged by a belt ring (13) located within the channel (100), with a counter-ring (13 ') thereto, by rotating the shaft (J) with the control knob (11) rotating the shaft (J) and the this coupled gear ", and moves the belt ring (13) located within the channel (100) in motion in a direction determined by <(<the rotary movement of the control knob, and moves a tile ring ring (13) • ·, ···, connected control tree (ti) in motion, which tree is a rigid structure and guided by * «· through-heel (e'j.e ^ .e ^) in the ears (not ^ ...) of the slats (Sj ^ ... ), wherein the other end of the trees is connected to the channel (100) or a structure connected thereto, whereby by changing the direction of movement the band ring change the control direction of the valve or open or close the valve (300). 4. Control structure according to claim 1, characterized in that a gear (12a) e * »<<. 11. 30 is arranged to functionally engage with a gear ring (F) in a hollow space (Dj) I (I Λ within the control knob (11), whereby when turning the control knob (11), rotating «1 1« 1 «« The gear wheel (12a, 12b), the gear wheel (12a) being arranged outside the channel (100) and the gear wheel (12b) at least partially located within the channel (100), whereby it is arranged to move a located within the channel (100) in motion belt ring (13) to which the damper parts (Sj, Sj ...) are connected via a tree (tj) or trees (tj ^). Control valve structure according to any of the preceding claims, characterized in that the control part (200) of the valve (300) comprises in the control knob (11) a spring (14) between a shoulder (10ap on a fixed pin (10a) and a shoulder ( 11b) in the control knob body (11), which spring with spring force presses the part (11) with a tooth (11c) 10 against a tooth (10c) on an end piece (10c) of the pin (10), the spring (14) pours the control knob body (11) in an upper position and read. Control structure according to any of the preceding claims, characterized in that the end part (11) is connected to an end piece (15), which are connected to each other by 15 gears (¢ 2, C2), however, so that the part (15) at needs can be rotated in relation to the part (11) and that in an annular lock (U) or correspondingly on the upper surface of the part (15) an adjustable shaft is arranged. soot memory (16) and that a read arrow (J) is located on an end portion (50c) connected to a portion (10c), wherein the control position of the valve (300) can be read on a scale (E) on the portion (15) at the read arrow (I). ). 20 Control structure according to any one of the preceding claims, characterized in that the part (10c) has a gear (10d) and the part (11) has a counter-gear •, ... t (11c), wherein the gear (11c, 10d) are released from each other by displacing the portion (11) (arrow Li) and the portion (11) can be rotated freely about the pin (10), The IA space (Dj) located the gear (12a) is rotated via the inner gear ring (F) in the part (11) and further the shaft (J) and the second gear wheel (12b) engaging the shaft (J). , which is further in engagement with the belt ring (13), advantageous to the counter-ring (13 ') thereon and that the control ring (13) is coupled to control trees (tj ^). advantageously rigid wires which are guided continuously through one or more slats (Sj, S2) and • · · ·. ··. For example, further attached, for example, to the channel (100), whereby the control ring (13) is moved by displacing the belt ring (13) and further engaging it 9 9 9 9 9 9 9 9 9 9 95 95 π the standing damper structure (Sj, S2 · ..) in motion, whereby the dampers (Sj, S2 ..) can be set at different angles to control the flow of gaseous medium, such as air through the valve (300). 5 * 1 1 · • · • 1 · • «• · ·« »• · · * 1 1 •« · • · · • · · * · · • · 1 • · · • · · •. I · «« I <<I • f · «« IM • «« * 1 <«• · • ·« • · · · I · • · · · • ·