HU208355B - Link work for operating cover - Google Patents

Abstract

An assembly serves for operation of a damper door, in particular an air hole damper door or dome, which can be pivoted about a fixed first rotation axis (2) from a closed position into an alarm position and back again, with at least one linear drive element. At its end a first traverse part (1) of the damper door is fitted pivotably at a point on the damper door remote from the rotation axis (2), whilst its second end is fitted pivotably about a first pivot axis (11) on a supporting lever (12), which in turn can pivot about a fixed second pivot axis (13) close to the rotation axis of the damper door. In order to achieve a large opening angle of the damper door with only the single linear drive element, a supplementary deflection lever (15) is fitted with a first end pivotably on the first pivot axis (11) of the door. The second end of the deflection lever engages pivotably on the traverse part (1) of the damper door at a distance from its rotation axis (2) and from the fixing point (7a) of the first end of the drive element. <IMAGE>

Description

BACKGROUND OF THE INVENTION The present invention relates to a hinged device for operating a lid, in particular a flue duct lid or dome, from a closed position to an emergency position and a pivotable fixed first axis of rotation with a linear actuating member at one end of the lid tilt mounted and on the other hand mounted on a support arm pivotable on its part about a fixed second axis of rotation near the lid's axis of rotation.

In some countries, as known articulations provide an opening angle of about 165 °, expensive additional measures are required. Thus, one of the known articulated joints of the type described in the introduction has a second cylindrical actuator member which is pivotally connected to one end of the support arm and to a support extending downwardly from the axis of rotation of the dome. With this second roller, the support arm can be tilted upward with the first roller, which is also pivotally mounted around the center of the support arm and reaches the top cross member of the dome. The cost of such a known device is high due to the second compressed air cylinder.

It should be pointed out at this point that the designation of the articulation chosen in the application is a new version. However, the hinge can also be used to operate the lid on other devices.

The articulation of the articulation of the present invention is described in U.S. Patent No. 4,419,786, which has the same purpose as the other articulation but has a different design. This solution also has the shortcomings that we have generally pointed out above.

In the other articulated articulation of the fire protection devices, a gas spring, which is connected to one end of the support arm, is used to move the dome, in addition to the first cylinder. A third actuator - engine or cylinder - is required to open or close the dome at an angle of 120 ° for such a known fire protection device. This results in even higher costs. In addition, it should be noted in the prior art that suitable hinges may not require automatic dome locking for all heat protection systems, but require manual closure and mechanical locking.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a hinged device for opening and closing a device having a fully automatically operable lid in an emergency position and back, which is only enabled by a single actuator throughout the tilting range of about 165 °.

In the case of a pivoting device which is pivotable about a first fixed axis of rotation from a closed position to an emergency position and backwards by at least a linear actuator having one end pivotally connected to a support element of the lid and pivoting about a first pivot axis In accordance with the present invention, the object is solved in a first embodiment by having only a linear actuator of the pivot having a further pivot arm pivotally rotated with a first end of its first axis of rotation. disposed, the other end of which is pivotally connected to the lid support member at a distance from its axis of rotation and the point of attachment of the first end of the actuator member n.

In this way, it is possible to tilt the bearing location or the point of attachment of the actuator on the support arm with the same actuator which is connected to the lid or to the support element connected to the lid.

The fully automatic opening and closing of the lid into and out of the emergency position is thus effected by only one additional passive member, namely the crank.

The opening and closing forces as well as the swinging speed at each operating stage, with the position of the two swing axes, the axis of rotation and the pivot points forming a quadruple, can be selected when designing the joint.

In said first version of the articulation device according to claim 7, the first pivot shaft on which the actuator is mounted is at one end of the support arm. In this way, the support arm does not exclusively extend beyond the tilting shaft.

With respect to the articulation mechanism, a second version of said problem can be solved in that the articulation device has only a linear actuator having a first pivot axis about the first end of the support arm, it is pivotally connected at a distance from its axis of rotation and from the attachment point of the first end of the actuator.

The second version operates in the same way as the first version, according to which a single linear actuator is sufficient to open and close the flue cover or dome over a wide opening range, and an additional swing arm is used as a passive member connected to the support arm distal to its second pivot axis. a support arm around which it can pivot. Again, the rotary arm allows the longitudinal extension of the actuator to raise and open the flue lid, and vice versa, while the actuator shortening retracts or cracks the flue lid.

The second variant, in which the pivot point of the cylinder is approximately at the center of the support arm, is particularly advantageous if a longer stroke cylinder is selected since the cylinder is rotated from the first pivot axis of the support arm.

EN 208 355 Β down can be extended. With the flue flap closed, the cylinder is inclined so that it does not extend down far. In addition, there is no risk that the lower end of the actuator will collide with a support on which the lid is tiltably mounted when opening or closing.

A third version of the hinged device for operating the lid, in particular the flue duct lid or dome, which rotates about a fixed first axis of rotation from a closed position to an emergency position and back, operates by at least one linear actuator having one end of the first tilt axis is pivotally connected to a support arm, which may rotate about a fixed second pivot axis near the pivot axis of the cover.

In such a third version of the articulation mechanism, the indicated task can be solved by providing the articulation mechanism with only one linear actuator having a first pivoting pivotally connected to its first pivot axis, the second end of which is pivotally connected to the lid support member from its first pivot axis. at a certain distance, with the second end of the actuator rotating about a fixed third pivot axis.

Here, the object is solved in the same manner as in the two previously mentioned embodiments, namely with a single linear actuator for creating a tilting area and an additional pivoting arm, one end of which is pivotally connected to the support arm and the other end of which is connected to the flue cover cross member. Compared to the first variant, the third variant essentially differs only in the arrangement and suspension of the linear actuator. Advantageously, the third variant achieves a high proportion of torque at opening of the flue duct and of torque at closing. This allows you to take into account the increased load when opening, especially in snow or ice. - In any case, the third version of the articulation requires a larger interior space than the first version, which is thus more favorable in this respect.

For all versions of the articulation mechanism, it is preferable to place the second pivot axis about which the support arm can pivot on a support arm beneath the pivot axis of the cover or its cross member.

In the third version of the articulation mechanism, the fixed third pivot axis about which the actuator may pivot is rigidly connected to a fixed second pivot which may be provided by a actuator which is connected to the transverse support. The third pivot axis is then lower and horizontally spaced relative to the first pivot axis about which the lid may pivot than the second pivot axis about which the support arm may pivot.

In the case of RWA-system devices with a lid which can be swung from a closed position to a regular ventilation position, and in addition to an emergency position, and tilted about a axis of rotation, a double stroke cylinder is preferred according to the invention.

In the case where the actuating element is a sliding cylinder, in particular a double stroke cylinder, the first and second tilting axes can simultaneously serve to supply the compressed air to the cylinders, according to the invention the first tilting axis and the second tilting axis are configured to rotate tolóhengerbe. Between the pressure transmissions on the first tilt shaft and the second tilt shaft, there is a conduit for the pressurized fluid that pivots with the support arm.

According to the invention, it is expedient to have a fastening device located on the support member near the first end of the linear actuator so that the fastening device can be actuated by the actuator. Thus, the actuator has an additional function of actuating the locking mechanism, which is synchronized with the opening and closing movements.

Further features and advantages of the hinged versions of the invention are provided in the following description, which is related to the accompanying drawings.

The three variations are illustrated in the drawings with twelve figures. These are the following:

Figure 1 shows a preferred embodiment of a first version of a double stroke roller joint in three different positions, with the closed base position shown with drawn lines, the normal ventilation position and the emergency position shown with dashed lines in side view;

Figure 2 is a detail view of the hinge structure of Figure 1, namely a side view of a cross member top;

Fig. 3 is a cross-sectional view of the upper cross member of Fig. 2

In its intersection plane A-A;

Figure 4 is a further detail of the hinge structure of Figure 1, namely a side view of a lower cross member;

Figure 5 is a bottom view of the cross member of Figure 4;

Figure 6 is a further detail of the articulation of Figure 1, namely the support arm in the median plane;

Fig. 7 is a view of the support arm of Fig. 6, where the median plane is designated B-B;

Figure 8 is a further detail of the articulation of Figure 1, namely the center of rotation of the pivoting arm;

Figure 9 is a view of the front face of the swing arm of Figure 8;

Fig. 10 is a view of the pivot arm of Fig. 1 with the middle incision plane C-C;

Figure 11: Preferred embodiment of a second version of a sliding cylinder joint mechanism3

EN 208 355 Β in two different positions, with the closed base position shown with a dashed line and the most open emergency position with a dashed side view, and

Fig. 12 is a preferred embodiment of a third version of a sliding roller actuator, also illustrated with a line drawn in the closed base position and a dashed line in the emergency position.

In the closed position of Fig. 1 of the first version of the articulated joint, the structural members are denoted by simple numbers, while in the normal ventilation position the same elements are denoted by the same numbers but with a comma, and in the emergency position .

The hinge mechanism serves to operate a flue duct lid which is not shown but is firmly connected to the transverse support upper portion 1 which runs in the center of the flue duct lid between opposite sides of this flue duct lid. The transverse support upper and therewith the flue cover can be rotated about the axis of rotation 2. The rotation range is indicated by the 3 circular segments indicated by the dotted line. This is approximately 165 °.

In the closed position shown, the upper part of the cross member 1 rests on the lower part of the cross member 4, which extends downwards from its left side into the holder 5. The support bracket is rigidly supported by a support 6 which extends upwardly to the lower part of the cross member 4.

On the right-hand side, opposite to the axis of rotation 2, a piston rod 8 is attached to the upper part of the cross-member 1, which belongs to the double-stroke cylinder 9 - the compressed air cylinder. The double stroke cylinder 9 represents the linear linear actuator of the joint, alone. The lower end 10 of the double-stroke cylinder 9 is located in the theoretical first pivot axis 11 which is configured to rotate the compressed air to the double-stroke cylinder. The first pivot shaft 11 and the pivoting passage are provided at one end of the support chamber 12, the other end of which is provided at the lower end of the support bracket 5 on the other end of the second pivot shaft 13, which is also implemented as pivoting.

The pivoting arm 15 is located between the first pivot axis 11 and the pivot point 14 on the upper part of the cross member 1. The pivot arm 15 thus represents a passive coupling between the first pivot shaft 11 and the upper cross member 1 in addition to the active coupling, namely the double stroke cylinder 9, such that they have different attachment points on the upper cross member 1. The point of rotation 14 is closer to the axis of rotation 2 than the center of the upper part of the cross member 1.

The pivot axis 2, the first and second pivot axes 11 and 13, and the pivot point 14 form a four-pivot connection. The distance between the pivot axis, the two pivot axes and the pivot point can be selected within a certain range such that the angular velocity of the tilting movement of the cross member 1 and the forces exerted on the transverse upper portion by the double stroke cylinder 9 are predetermined. be.

Near the piston rod 8 is the upper part of the cross member

At the right side of Fig. 1, there is a lower fastening device adjacent to the piston rod so that the fastening device can be released by initial movement of the piston rod.

Accordingly, if the double stroke cylinder 9 is now actuated with compressed air so that the piston rod 8 is pushed out of it, the fastening mechanism is released first, which allows the upper cross member 1 and the associated flue pipe cover to be tilted. Meanwhile, the double-stroke cylinder 9 rests on the bearing of the first tilt shaft 11 on the support arm 12, which, however, cannot turn downward due to the pivoting lever 15 in a clockwise direction. Rather, the structural members connected to the bottom of the first tilting axle are tilted all the way counterclockwise by the right side 7 of the cross member 1 in the direction of the arrow 17. In other words, as a result of the transmission of force by means of the pivoting arm 15, a thrust is exerted on the support arm which rests on the second pivot axis 13 on the support bracket. With the opening movement described, the normal venting position, in which the upper part of the cross-member is denoted by 1 ', is achieved due to the elevation of the first tilting shaft 11 and associated structural members. (In the normal ventilation position, as mentioned above, the other components are also marked with a comma.)

Further stroke, which is performed by the double-stroke cylinder at elevated pressure, will eventually reach the fully open emergency position at an opening of about 165 &apos; in which the upper part of the cross member is denoted by I. Now the piston rod 8 is completely extended from the double stroke cylinder 9. The position of the support arm 12 and the pivot arm 15 is shown in Figure 1. It becomes clear how only these structural elements, that is to say, only one actuator, can achieve this emergency position.

For closing, or partial closing of the flue duct lid, the process described above is reversed when the double-stroke cylinder is moved in the opposite direction by the compressed air. This closing movement does not require any additional actuator; the closing movement is effected by means of the double stroke cylinder 9 as a single actuator. Thus, in the closing movement, the piston rod 8 retracts in such a way that the pivoting arm 15 is pivoted about the pivot point 14 and thereby pivots the support arm 12 about the second pivot axis 13 on a circular path. In this case, the support arm 12 is geared as a result of the drive movement of the double stroke cylinder. As a result, the upper part of the cross member moves backwards to the closed position, in which the locking mechanism 16 is automatically closed. The locking force is then, as mentioned, dependent on the mutual distance of the axis of rotation 2, the first and second tilting axes 11 and the point of rotation 14 and can be influenced accordingly during design.

HU 208 355 Β

Figure 1 also shows the ledge 18 for inserting the quad-hinge structure into the structure with the flue lid, but does not contribute to the substantial operation of the quad-hinge structure.

For each of the structural members of the articulated joint described below, FIGS. With reference to the figures, the following can be added:

Figures 2 and 3 show a top of a transverse support consisting essentially of striped end faces 19 and 20 on both sides and an inverted U-shaped support 21 connecting them. The transverse support upper portion is shown in Fig. 2 in an inverted direction with respect to Fig. 1 so that the connection point 7a formed on the first end of the piston rod of the double-stroke cylinder is located on the left side of the transverse upper portion in Fig. 2. This connection point 7a forms a pivot bearing. The point of attachment of the second end 15b of the pivoting arm 15 - see Figures 8 and 10 - is consequently located from the center of the upper cross member to the right. The corresponding pivot point for the pivot arm 15 on the upper part of the cross member 1 is denoted by 14.

Figures 4 and 5 show the lower part of the corresponding cross-member 4 on which the described upper cross-member lies in the closed position of the cover. The lower part of the cross member consists essentially of two angular ends 22 and 23 which are connected by parallel bars 24 and 25. These rods are also made of angles. The bracket 5 extends downwardly from the angular end 22. It is connected at its lower end to the rods 24 and 25 through a support 6 which is formed as a double support. The lower part of the support bracket 5 has a second pivot shaft 13 formed on the support arm 12 as shown in FIG.

Figures 6 and 7 show a support arm 12 formed of parallel angles 26 and 27 connected to each other by angular pieces 28 and 29, with a hole 12a at the end 12a which forms part of the first pivot axis 11. The hole can be fitted with a non-depicted rotary guide for the double stroke cylinder. The other end 12b of the support arm 12 is thus provided with a pivot point for the second pivot shaft 13. Figure 6 is a longitudinal section in the plane B-B shown in Figure 7.

Finally, sections 8-10. Figure 8 shows different views of the pivoting arm 15, Figure 8 again showing a longitudinal section along the central plane (here C-C in Figure 10). The long section of the pivot arm 15 consists of two angular elements 30 and 31 which are connected in parallel with the angular pieces 32 and 33. In this case, the angular piece 32 is arranged to form a closed face. There is a box-shaped end piece 34 welded thereto which is so narrow that it fits between the legs of the U-shaped holder 21 of the cross member and is easily rotatable therebetween. The corresponding pivot point 14, as shown in Figure 1, is then located at the second end 15b of the pivoting arm 15. The other first end 15a may all be rotated about a first pivot axis as shown in Figure 1 and is provided with a hole for the pivotable bearing.

The mutual relationship between the described structural elements can be explained with reference to Figure 1.

With respect to the linear linear actuator, which is shown in Fig. 1 as a pneumatic double-stroke cylinder, there may be variants in the form of, for example, a hydraulic cylinder or an electric motor with a threaded spindle.

As mentioned, the relative positions of the four-pivot pivot axes, the pivot axis, and the pivot point can be selected, thereby influencing the opening and closing forces.

1, the lower end of the double stroke cylinder 9 may be connected to an intermediate point between the ends 12a and 12b of the support arm 12. It is also possible for the double stroke cylinder 9 to be pivotally connected by extending the support arm 12 extending beyond the end 12a. Variants of the upper attachment point 7a of the double stroke cylinder 9 are also possible on the upper part of the cross member.

The fastening device 9a may be formed as a separate actuator as a pneumatic, hydraulic or mechanical fastener; however, it is expedient to operate the described operation with a double stroke cylinder. The wrist

In the second version of Figure 11 and in the third version of the articulated joint 12, the same structural elements corresponding to the first version have the same reference numerals. In this case, again, the structural members in the fully opened emergency position are distinguished from the same elements in the rest position by the addition of two commas in the reference marks of these elements in the emergency position.

All. The second version of Fig. 1b differs substantially from the first version of the articulation mechanism of Fig. 1 in that, in the second version, the first pivot axis 35 of the actuator 36 is offset about the middle of the support arm 37. In this case, the sliding roller 36 is not bearing the lower end of the first pivot shaft 35, but an intermediate point about its center. As a result, the slider 36 is in a retracted position, here with the lid (not shown) closed, in a space-saving oblique position. When the lid is opened, when the piston rod 38 protrudes from the sliding cylinder 36 and thus the upper cross member 1 is moved to the fully open emergency position, the lower part of the slider 36 cannot collide with the lower member 4 of the cross member. The mode of operation of the support arm 37 and the pivot arm 39 is substantially the same as that previously described with respect to the first embodiment of Figure 1, so that repetition may be omitted. The position of the second pivot point 13 on the support arm 37 and the position of the pivot point 14 of the pivoting arm 39 on the cross member 1 are likewise the same as shown in FIG.

EN 208 355 Β, so that the same reference numerals are used for the second tilt shaft 13 and the pivot point 14. Similarly, in the second version of the cross-member 1, the piston rod 38 is marked with the connection point 7a. The lower end of the pivoting arm 39, which in the second variant is not at the same position on the support arm 37 at the sliding roller 36, is provided with a third pivot axis 40 at this pivoting arm, the end of the pivot housing 37 being distal to the second pivot axis.

The particular advantage of the second version of Fig. 11, due to its visibly space-saving position of the sliding cylinder 36, is that the length of the sliding cylinder 36 and its stroke length are freely selectable, so that the relatively long stroke cylinder can also be used.

The third version of the joint according to Fig. 12 differs substantially from the first version according to Fig. 1 in that in the third embodiment the lower end of the sliding cylinder 41 is not pivotally mounted on a pivoting support arm, but on an angular piece 33 or suitably, but in any case firmly on the underside of the cross member. The corresponding third pivot shaft for mounting the sliding cylinder 41 on the angle piece 33 is now designated by the reference numeral 44. In addition, in the third embodiment, it is noteworthy that the piston rod 45 of the sliding cylinder 41 is not connected to the cross member 1 as in the first version of the articulation mechanism, but is connected to the end 47 of the support 47 at the first tilt shaft. The position of the second pivot shaft here on the support bar 5 is the same as in the first variant, so that here the second pivot shaft is also designated by the reference numeral 13. In other words, in the third version of the articulation mechanism, the piston rod 45 of the sliding cylinder 41 is not directly coupled to the cross member 1 but is only engaged via the pivot arm 48, which is also centered at the pivot point 49 on the upper member.

An important advantage of the third variant is that when opening the lid, not shown here, the torque of the structural member of the articulation member shown with the lines drawn in FIG. 12, in the wide open emergency position indicated by the dashed lines, is applied which is relatively high from the emergency position to the torque required at closing.

It is clear from the previous description of the three variants that the upper part of the cross-member 1, the lower part of the cross-member, the support arm and the pivot arm can all be made in the same way, or at least in very similar ways. The second cam support cam has a first pivot axis 35 between its two ends, unlike the first and third pivot axles. In the third version, the upper part of the cross-member lacks the piston rod connection, whereas in the lower part of the cross-member there is an angle piece firmly mounted to the sliding cylinder bearing, unlike the first and second versions.

PATENT CLAIMS

Claims (9)

PATENT CLAIMS A hinged device for operating a lid, in particular a flue duct lid or dome, which, from a closed axis of rotation (2) to an emergency position and tiltable by means of a linear actuator hinged at one end to a support member of the lid other than its axis of rotation pivotally connected to a support arm (12) pivotable about a fixed second pivot axis (13) in the vicinity of the pivot axis of the lid, characterized in that the articulation device has only one linear actuator having a first pivot axis (11); the further pivot arm (15) is pivotally disposed with its first end (15a), the second end (15b) of which is pivotally connected to the upper cross-member (1) of the lid and its axis of rotation (2) connecting point (7a). 2. A hinged device for operating a lid, in particular a flue duct lid or dome, which is closed from a fixed position of rotation (2) to an emergency position and tiltable by means of a linear actuator hinged to one end of the lid pivotally mounted about a first pivot shaft (35) to a support arm (37) pivotable near the pivot axis of the lid, characterized in that the articulation has only one linear actuator member and the first pivot shaft (35) is centered on the length of the support arm (37). an additional pivoting arm (39) is pivotally connected to a first end of the support arm (37) further away from the second pivot axis (13), and the second end of the pivoting arm is pivotally connected to the upper cross member (1) of the lid; n axis of rotation (2) to the attachment point (7a) of the first end of the actuator. A joint for actuating a lid, in particular a flue lid or dome, from a closed position of rotation (2) from a closed position to an emergency position and tiltable by a linear actuator, one end of which is pivotable about a first pivot shaft (46) ), which is pivotable about a fixed second pivot axis (13) in the vicinity of the pivot axis of the lid, characterized in that the articulation device has only one linear actuator which is pivotally mounted on the first pivot axis (46) at its first end , the second end of which is the lid ke6 The actuator is pivotally connected to the upper part (1) of the grid holder, and the actuator is pivotable at its second end about a fixed third tilt axis (44). 4. A hinge device for actuating a lid according to any one of claims 1 to 5, which is actuated from a closed position to a normal ventilation position 5 and further to an emergency position and tilted about a grip axis (2) according to any one of the preceding claims. 5. The articulation device according to any one of claims 1 to 4, characterized in that the second pivot axis (13) around which the support arm (12, 37, 47) can pivot is mounted below the pivot axis (2) of the lid. 15 6. Articulated joint according to any one of claims 1 to 3, characterized in that the fixed third pivot axis (44) around which the actuator member can pivot is at a fixed distance from the stationary transverse member, the lower cross member (4) and the pivot axis (2) around which the lid can be opened, further away than the second pivot shaft (13) around which the support arm (47) may pivot. Articulated joint according to claim 1 or 3 or 4, characterized in that the first pivot shaft (11,46) is at one end of the support arm (12,47). The articulation device according to claim 1 or 2, with a sliding cylinder used as a linear actuator 10, characterized in that the first tilting shaft (11, 35) and the second tilting shaft (13) are designed as rotary passages for introducing the compressed fluid. Articulated joint according to claim 1 or 2, characterized in that a mechanical securing device (16) is connected to the upper part (1) of the cross-member via the first end of the linear actuator.