Adjustable adjuster from a first end and a second end of the adjuster

Abstract

An adjustment device designed to adjust a flow rate of a fluid flowing in a duct, including a body in which an adjustment valve is mounted, movable in rotation about an adjustment axis, the body having an area upstream of the adjustment axis and a downstream area opposite to the upstream area with respect to the adjustment axis, where the adjustment axis is equipped with connecting means which cooperate with at least one first control member positioned in the downstream area and a second control member positioned in the upstream area.

Claims

1. An adjustment device designed to adjust manually a flow rate of a fluid flowing in a duct, comprising a body in which an adjustment valve is mounted, movable in rotation about an adjustment axis, said body comprising an area upstream of the adjustment axis and a downstream area opposite to the upstream area with respect to the adjustment axis, wherein the adjustment axis is equipped with connecting means which cooperate with at least one first control member positioned in the downstream area and a second control member positioned in the upstream area the first control member and the second control member comprise a portion specifically for a gripping by a technician, wherein each of the at least one first control member and the second control member comprises a complementary drive element configured to cooperate with the drive element, wherein the complementary drive element of the at least one first control member and/or of the second control member comprises a helical spline.

2. The adjustment device according to claim 1, wherein the connecting means comprise at least one drive element configured so as to drive in rotation the adjustment axis.

3. The adjustment device according to claim 2, wherein the at least one drive element comprises notches.

4. The adjustment device according to claim 1, wherein the complementary drive element of the at least one first control member is connected with the complementary drive element of the second control member.

5. The adjustment device according to claim 1, comprising at least one first position indicator positioned in the downstream area and a second position indicator positioned in the upstream area.

6. The adjustment device according to claim 5, wherein each of the at least one first position indicator and the second position indicator comprises an elongation.

7. The adjustment device according to claim 6 wherein the adjustment valve comprises at least one complementary position indicator configured so as to cooperate with at least one of the elongations.

8. The adjustment device according to claim 7, wherein the elongation of the first position indicator is connected to the elongation of the second position indicator.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The disclosure will be better understood, thanks to the following description, which relates to several embodiments according to the present disclosure, provided as non-limiting examples and explained with reference to the appended schematic drawings, in which:

(2) FIG. 1 is a top view representation of an adjustment device according to a first embodiment,

(3) FIG. 2 is a bottom view representation of the adjustment device according to the first embodiment,

(4) FIG. 3 is a view of an upstream area of the adjustment device according to the first embodiment, said adjustment device being integrated into a sleeve,

(5) FIG. 4 is a representation viewed from an area downstream of the adjustment device according to the first embodiment, said adjustment device being integrated into the sleeve,

(6) FIG. 5 is a representation of an adjustment device according to a second embodiment,

(7) FIG. 6 is a side view of the adjustment device according to FIG. 5,

(8) FIG. 7 is a view of an upstream area of the adjustment device according to FIG. 5.

DETAILED DESCRIPTION

(9) The remainder of the description covers 2 embodiments of an adjustment device according to the disclosure, with reference to FIGS. 1 to 7 in which the elements or members, that are structurally or functionally identical or similar, are designated by identical reference numerals.

(10) FIGS. 1 and 2 represent an adjustment device 1 according to a first embodiment comprising a body in which an adjustment valve 2 is mounted.

(11) The adjustment valve 2 has a substantially semicircular shape, that is to say half-disk shaped. The adjustment valve 2 comprises an adjustment axis. Said adjustment axis is held at the level of a first termination 24 by a first base 3 of the body and at the level of a second termination by a second base 4 of the body. The adjustment valve 2 is mounted movable in rotation about said adjustment axis.

(12) An upstream area A of the body is an area comprised between the adjustment axis and a first end of the adjustment device 1 and a downstream area B is an area comprised between the adjustment axis and a second end of the adjustment device 1.

(13) The first base 3 has a substantially rectangular shape and comprises an outer face 32 opposite to an inner face 31. The inner face 31 comes into contact with the adjustment axis of the adjustment valve 2. The first base 3 extends in a plane normal to the adjustment axis.

(14) The second base 4 has a substantially rectangular shape, with a length and a width substantially identical to a length and a width of the first base 3. The second base 4 comprises an outer face 42 opposite to an inner face 43. The inner face 43 comes into contact with the adjustment axis of the adjustment valve 2. The second base 4 extends in a plane normal to the adjustment axis distinct from the plane in which the first base 3 extends.

(15) The first base 3 and the second base 4 define a volume in which two stiffening axes 5 are comprised. The stiffening axes 5 connect the inner face 31 of the first base 3 and the inner face 43 of the second base 4. Furthermore, the stiffening axes 5 comprise a substantially rounded portion so as to facilitate the handling of the adjustment device 1. The stiffening axes 5 determine a mechanical strength of the adjustment device 1.

(16) The adjustment device 1 further comprises a regulation flap 6. The regulation flap 6 extends in a plane. The regulation flap 6 has a substantially circular shape. The regulation flap 6 is movable in rotation about a regulation axis parallel and distinct from the adjustment axis of the adjustment flap 2.

(17) The adjustment valve 2 and the regulation flap 6 are held in a position substantially parallel to each other by a return member 7. Thus, a modification in the position of the regulation flap 2 results in a modification in the position of the regulation flap 6.

(18) The adjustment axis of the adjustment flap 2 is equipped at the level of the first termination 24 with connecting means extending in a plane substantially normal to the adjustment axis.

(19) The connecting means comprise a drive member 21 which has a quarter-disk shape including an arc provided with notches.

(20) The connecting means cooperate with a first control member 35 and with a second control member 36.

(21) The first control member 35 is positioned in the downstream area B of the adjustment device 1 and the second control member 36 is positioned in the upstream area A of the adjustment device 1.

(22) Each of the first control member 35 and the second control member 36 comprises a control wheel movable in rotation.

(23) Each of the first control member 35 and the second control member 36 comprises a complementary drive element 37, 38. The complementary drive element 38 of the first control member 35 is connected with the complementary drive element 37 of the second control member 36.

(24) Subsequently, in order to simplify the description, the term «complementary drive element 37, 38» will be used to refer to the complementary drive element 38 of the first control member 35 and of the second control member 36.

(25) The complementary drive element 37, 38 comprises a helical spline 33.

(26) The drive element 21 cooperates with a complementary drive element 37, 38.

(27) The notches of the drive element 21 are configured to interact with the helical spline 33 of the complementary drive element 37, 38, such that when a technician rotates the first control member 35 or the second control member 36, the complementary drive element 37, 38 rotates about its axis of elongation and the drive element 21 rotates about the adjustment axis. The adjustment valve 1 then changes position.

(28) The connecting means, the first control member 35 and the second control member 36 are positioned across a thickness of the first base 3.

(29) The adjustment valve 2 also comprises a complementary position indicator 22 extending according to an axis parallel to the adjustment axis.

(30) The complementary position indicator 22 comprises a pin cooperating with an oblong recess 44 of an elongation 47 of a first position indicator 46.

(31) The first position indicator 46 is positioned in the downstream area B of the adjustment device 1.

(32) The first position indicator 46 is connected to a second position indicator 48 positioned in the upstream area A of the adjustment device 1.

(33) The second position indicator 48 comprises an elongation 41 connected to the elongation 47 of the first position indicator 46.

(34) The first position indicator 46 and the second position indicator 48 are mounted movable in rotation about an axis positioned substantially equidistant from the upstream area A and the downstream area B.

(35) The first position indicator 46 and the second position indicator 48 extend transversely to the adjustment axis across a thickness of the second base 4.

(36) The second base 4 comprises on a first edge and on a second edge a position scale 45 configured to cooperate respectively with the first position indicator 46 and the second position indicator 48.

(37) When the adjustment valve 2 changes position, the complementary position indicator 22 also changes position in an orifice of the second base 4. The complementary position indicator 22 inserted into the oblong recess 44 drives in rotation the first position indicator 46 which drives the second position indicator 48. The first position indicator 46 and the second position indicator 48 therefore modify their position with respect to the position scale 45. In this manner, the first position indicator 46 and the second position indicator 48 indicate the position of the adjustment valve 2.

(38) The adjustment device 1 is designed to be directly inserted into an aeraulic duct or into a sleeve 80 as illustrated in FIGS. 3 and 4.

(39) When a technician wishes to insert the adjustment device 1 into the aeraulic duct, he grasps said adjustment device 1 then directs it depending on a circulation direction of a flow rate of air passing through said aeraulic duct.

(40) He positions the upstream area A of the adjustment device opposite the airflow, that is to say that the airflow meets, in a direction of the flow, the upstream area A then the downstream area B of the adjustment device 1.

(41) The technician chooses a position of the adjustment valve 2 depending on the adjustment of the air flow rate to be made. For this purpose, he turns one of the control members 35, 36 so that the first 46 or the second 48 position indicator reaches the desired position on the position scale 45.

(42) The technician then brings the outer faces 32, 42 of the first base 3 and of the second base 4 into contact with an inner face of the aeraulic duct. Frictions exerted between the outer faces of the first base 3 and of the second base 4, and the inner face of the aeraulic duct hold the adjustment device 1 in the aeraulic duct.

(43) The adjustment valve 2 and the regulation flap 6 thus partially seal the aeraulic duct so as to adjust the air flow rate.

(44) The regulation flap 6 allows maintaining a substantially identical flow rate regardless of the pressure variations present in the aeraulic duct.

(45) When the adjustment device 1 is inserted into a sleeve 80, the sleeve 80 is subsequently inserted into the aeraulic duct.

(46) The sleeve 80 has a tubular shape, that is to say that a passage section is circular, comprising an inner wall 81 defining an inner volume of said sleeve 80 and an outer wall 82 opposite to the inner wall 81.

(47) The sleeve 80 further comprises a first aperture 83, and a second aperture 84, whose length and width are substantially equal to a length and a width of the first base 3, respectively of the second base 4, of the adjustment device 1 with which they are intended to cooperate.

(48) When the technician inserts the adjustment device 1 into the sleeve 80, he grasps, on the one hand, the sleeve 80 and, on the other hand, the adjustment device 1. Then he orients the adjustment device 1 so as to put the first base 3 opposite the first aperture 83 and the second base 4 opposite the second aperture 84. Afterwards, he slides the adjustment device 1 into the inner volume of the sleeve 80. The bases 3, 4 of the adjustment device 1 are then held in the apertures 83, 84 of the sleeve 80.

(49) When the adjustment device 1 is inserted into the sleeve 80, the first control member 35 and the second control member 36 are respectively accessible from a first end of the sleeve and a second end of the sleeve.

(50) The sleeve 80 is designed to be introduced into an aeraulic duct such that the outer face 82 is in contact with the inner face of said aeraulic duct.

(51) FIGS. 5, 6 and 7 represent an adjustment device 1′ according to a second embodiment designed to be introduced into the aeraulic duct.

(52) The adjustment device 1′ according to the second embodiment differs from the adjustment device 1 in that it comprises a tubular body in which an adjustment valve 2 and a regulation flap 6 are fastened.

(53) The tubular body comprises an inner wall 11 delimiting an inner volume and an outer wall 12 opposite to said inner wall 11. The tubular body allows for a mechanical strength of the adjustment valve 2 and of the regulation flap 6.

(54) The tubular body also comprises, across a thickness thereof, a first control element 35 and a second control element 36.

(55) The tubular body also comprises, across a thickness thereof, a first position indicator, and a second position indicator movable in rotation similar to the first position indicator 46 and the second position indicator 48 described in the first embodiment of the adjustment device.

(56) The outer wall 12 of the tubular body comprises 2 sealing gaskets 13.

(57) When the adjustment device 1′ is inserted into an aeraulic duct such that the outer face 12 is in contact with the inner face of said aeraulic duct, the sealing gaskets 13 enable all the fluid to pass into the adjustment device 1′.

(58) The first control member 35 and the second control member 36 are accessible respectively from a first end of the adjustment device 1′ and a second end of the adjustment device 1′.

(59) Thus, the technician accesses a control member 35, 36 regardless of the direction of introduction of the adjustment device 1′ into the aeraulic duct.

(60) Of course, the disclosure is not limited to the embodiments described and represented in the appended figures. Modifications are still possible, in particular with regards to the constitution of the various elements or by substitution of technical equivalents, yet without departing from the scope of the disclosure.