GB2134060A

GB2134060A - A pneumatic conveyer gate

Info

Publication number: GB2134060A
Application number: GB08302289A
Authority: GB
Inventors: Adolf Moritsovich Alexandrov; Evgeny Fedorovich Bulginov; Jury Alexandrovich Yashin; Igor Vyacheslavovich Kiselev
Original assignee: SP K BYURO TRANSPROGRESS
Current assignee: SP K BYURO TRANSPROGRESS
Priority date: 1983-01-27
Filing date: 1983-01-27
Publication date: 1984-08-08
Also published as: GB8302289D0

Abstract

The gate comprises a damper 1 overlapping the cross-section of a pipe- line section 2 and kinematically connected with a movable link 3 of a drive 4 turning it about an axle 5 disposed on the pipe-line section 2, and a driven catch bolt 12 entering a hole 15 provided on the pipe-line section and meant to hold the damper 1 in the closed position. Secured on the damper 1 is a bracket 8, and in the kinematic chain connecting the damper 1 with the drive 4 there is an angular lever 9 which is mounted so that it can turn through a limited angle and whose axle 10 of turning is secured on the bracket 8 parallel to the axle 5 of turning of the damper 1. One arm of the angular lever 9 is connected to the movable link 3 of the drive 4, and the damper 1 has guides 13 made thereon and accommodating the belt 12, which is kinematically connected with the other arm of the angular lever 9. <IMAGE>

Description

SPECIFICATION A pneumatic conveyor gate The present invention relates to pipe-line gates for pneumatic conveyors. It is most expedient to mount a gate made in accordance with the present invention as a terminal gate in a pipe-line of a pneumatic conveyor used for transporting books in libraries. It is possible to use the gate of the present invention in pipe-lines of pneumatic conveyors having a relatively small cross-section.

The present invention provides a gate of the pipe-line of a pneumatic conveyor, comprising a damper overlapping the pipe-line cross-section and kinematically coupled with a drive movable link to turn it about an axle disposed on the pipeline, and a driven catch bolt or pin trip entering a hole made in the pipe-line to hold the damper in the closed position, and in which the damper has a bracket secured thereon and in the kinematic chain coupling the damper with the drive there is an angular lever which is mounted so that it can turn through a limited angle, whose axle of turning is secured on the bracket parallely to the axis of turning of the damper, and whose one arm is connected to the drive movable link, and the damper has guides that are made thereon and that accommodate the pin trip, which is kinematically coupled with the other arm of the angular lever.

The gate in accordance with the present invention is simple in manufacture and provides for turning of the damper and displacement of the catch bolt with the aid of only one drive, which eliminates the necessity of having an automatic control system and, consequently, makes the gate simple in operation.

The invention will be described further, by way of example, with reference to the accompanying drawings, in which: Figure 1 is a part-sectional side view of a gate for a pneumatic conveyor, in which the damper is shown closing the pipe-line section; Figure 2 is a similar view, with the damper turned to open the pipe-line section; and Figure 3 is a view along the arrow A in Figure 1.

The pneumatic conveyor gate illustrated comprises a damper 1 which overlaps the crosssection of a pipe-line section 2 and is kinematically coupled with the rod 3 of a power cylinder 4 serving as a drive for turning it relative to an axle 5. The axle is mounted in a bracket 6 which is rigidly secured to the pipe-line section 2.

The damper 1 has ribs 7 which are rigidly connected thereto and by means of which it is mounted on the axle 5 so that it can turn relative to the axle. Rigidly secured between the ribs 7 of the damper 1 is a bracket 8. The kinematic chain connecting the damper 1 with the rod 3 of the power cylinder 4 comprises an angular lever 9 whose turning axle 10 is secured on the bracket 8 parallel to the axle 5 of turning of the damper 1.

One arm of the lever 9 is coupled with the rod 3 of the power cylinder 4, and the other arm of the lever 9 is coupled through a tie 11 with a catch bolt 12.

Secured to the outer side of the damper 1 are two guides 1 3 spaced from each other along the height of the damper and used to mount the catch bolt 1 2. Rigidly secured to the pipe-line section 2 is a plate 14 having a hole 1 5 accommodating the end portion of the bolt 12 when the damper 1 is in the closed position.

Disposed on the bolt 12 between the guides 13 is a spring 1 6 which is connected by its one end portion with the bolt 12. Made in the bolt 12 in the area of its connection with the tie 11 is a longitudinal slot 1 7 used to accommodate an axle 1 8 connecting the bolt 12 with the tie 11.

Secured on the bracket 8 are stops 19, 20 which limit the turn of the angular lever 9 in opposite directions, respectively.

On the side facing the pipe-line section 2 the damper 1 has a seal ring 21.

The gate described above functions as follows.

To bring the damper 1 from the closed position into the open one, the power cylinder 4 is actuated, as a result of which the rod 3 moves from the extreme right position (Figure 1) to the left. The angular lever 9 first turns about its axle 10 to the left (counter-clockwise) until it thrusts against the stop 1 9. The tie 11 imparts a vertical upward movement to the catch bolt 12 in the guides 13. The spring 16 is compressed and the bolt 12 leaves the hole 15, as a result of which the damper 1 is freed. Then, during the further movement of the rod 3 of the power cylinder 4 to the left, there takes place mutual turning of the angular lever 9, the bracket 8, and the damper 1 about the axle 5 until the cross-section of the pipe-line section 2 is completely opened, thereby providing for a free passage of containers (not shown).

The dumper 1 can be .idea in its open position with the aid of any conventional means which is suitable for the purpose and which is to be mounted on the power cylinder 4.

Closing of the damper 1 and its fixation in the closed position are done in the reverse order, with the rod 3 of the power cylinder 4 moving from the extreme left position to the extreme right position, whereby the damper 1 first turns together with the angular lever 9 about the axle 5 until the damper 1 overlaps the cross-section of the pipe-line section 2.

Then, during the further movement of the rod 3 to the right there takes place turning of the angular lever 9 relative the axle 10 to the right (clockwise) until it thrusts against the stop 20; as a result the damper 1 is further pushed and the seal ring 21 is deformed, thereby providing for hermetic sealing of the pipe-line section 2.

The catch bolt 9 is disposed strictly above the hole 1 5 in the plate 1 4 and enters it under the action of the spring 1 6. Thus, the damper 1 is fixed in the closed and hermetically sealed position.

1. A gate for a pneumatic conveyor, comprising a damper overlapping the cross-section of a pipe

**WARNING** end of DESC field may overlap start of CLMS **.

Claims

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION A pneumatic conveyor gate The present invention relates to pipe-line gates for pneumatic conveyors. It is most expedient to mount a gate made in accordance with the present invention as a terminal gate in a pipe-line of a pneumatic conveyor used for transporting books in libraries. It is possible to use the gate of the present invention in pipe-lines of pneumatic conveyors having a relatively small cross-section. The present invention provides a gate of the pipe-line of a pneumatic conveyor, comprising a damper overlapping the pipe-line cross-section and kinematically coupled with a drive movable link to turn it about an axle disposed on the pipeline, and a driven catch bolt or pin trip entering a hole made in the pipe-line to hold the damper in the closed position, and in which the damper has a bracket secured thereon and in the kinematic chain coupling the damper with the drive there is an angular lever which is mounted so that it can turn through a limited angle, whose axle of turning is secured on the bracket parallely to the axis of turning of the damper, and whose one arm is connected to the drive movable link, and the damper has guides that are made thereon and that accommodate the pin trip, which is kinematically coupled with the other arm of the angular lever. The gate in accordance with the present invention is simple in manufacture and provides for turning of the damper and displacement of the catch bolt with the aid of only one drive, which eliminates the necessity of having an automatic control system and, consequently, makes the gate simple in operation. The invention will be described further, by way of example, with reference to the accompanying drawings, in which: Figure 1 is a part-sectional side view of a gate for a pneumatic conveyor, in which the damper is shown closing the pipe-line section; Figure 2 is a similar view, with the damper turned to open the pipe-line section; and Figure 3 is a view along the arrow A in Figure 1. The pneumatic conveyor gate illustrated comprises a damper 1 which overlaps the crosssection of a pipe-line section 2 and is kinematically coupled with the rod 3 of a power cylinder 4 serving as a drive for turning it relative to an axle 5. The axle is mounted in a bracket 6 which is rigidly secured to the pipe-line section 2. The damper 1 has ribs 7 which are rigidly connected thereto and by means of which it is mounted on the axle 5 so that it can turn relative to the axle. Rigidly secured between the ribs 7 of the damper 1 is a bracket 8. The kinematic chain connecting the damper 1 with the rod 3 of the power cylinder 4 comprises an angular lever 9 whose turning axle 10 is secured on the bracket 8 parallel to the axle 5 of turning of the damper 1. One arm of the lever 9 is coupled with the rod 3 of the power cylinder 4, and the other arm of the lever 9 is coupled through a tie 11 with a catch bolt 12. Secured to the outer side of the damper 1 are two guides 1 3 spaced from each other along the height of the damper and used to mount the catch bolt 1 2. Rigidly secured to the pipe-line section 2 is a plate 14 having a hole 1 5 accommodating the end portion of the bolt 12 when the damper 1 is in the closed position. Disposed on the bolt 12 between the guides 13 is a spring 1 6 which is connected by its one end portion with the bolt 12. Made in the bolt 12 in the area of its connection with the tie 11 is a longitudinal slot 1 7 used to accommodate an axle 1 8 connecting the bolt 12 with the tie 11. Secured on the bracket 8 are stops 19, 20 which limit the turn of the angular lever 9 in opposite directions, respectively. On the side facing the pipe-line section 2 the damper 1 has a seal ring 21. The gate described above functions as follows. To bring the damper 1 from the closed position into the open one, the power cylinder 4 is actuated, as a result of which the rod 3 moves from the extreme right position (Figure 1) to the left. The angular lever 9 first turns about its axle 10 to the left (counter-clockwise) until it thrusts against the stop 1 9. The tie 11 imparts a vertical upward movement to the catch bolt 12 in the guides 13. The spring 16 is compressed and the bolt 12 leaves the hole 15, as a result of which the damper 1 is freed. Then, during the further movement of the rod 3 of the power cylinder 4 to the left, there takes place mutual turning of the angular lever 9, the bracket 8, and the damper 1 about the axle 5 until the cross-section of the pipe-line section 2 is completely opened, thereby providing for a free passage of containers (not shown). The dumper 1 can be .idea in its open position with the aid of any conventional means which is suitable for the purpose and which is to be mounted on the power cylinder 4. Closing of the damper 1 and its fixation in the closed position are done in the reverse order, with the rod 3 of the power cylinder 4 moving from the extreme left position to the extreme right position, whereby the damper 1 first turns together with the angular lever 9 about the axle 5 until the damper 1 overlaps the cross-section of the pipe-line section 2. Then, during the further movement of the rod 3 to the right there takes place turning of the angular lever 9 relative the axle 10 to the right (clockwise) until it thrusts against the stop 20; as a result the damper 1 is further pushed and the seal ring 21 is deformed, thereby providing for hermetic sealing of the pipe-line section 2. The catch bolt 9 is disposed strictly above the hole 1 5 in the plate 1 4 and enters it under the action of the spring 1 6. Thus, the damper 1 is fixed in the closed and hermetically sealed position. CLAIMS

1. A gate for a pneumatic conveyor, comprising a damper overlapping the cross-section of a pipe line section and kinematically coupled with a movable link of a drive for turning it about and axle disposed on the pipe-line section, and a catch bolt mounted in guides on the damper and entering a hole in an element provided on the pipe-line section to hold the damper in the closed position, the kinematic chain connecting the damper with the drive including an angular lever which is so mounted that it can turn through a given angle, whose axle of turning is mounted on a bracket secured on the damper and is parallel to the axle of turning of the damper, whose one arm is connected with the movable link of the drive, and whose other arm is kinematically coupled with the catch bolt to displace the bolt.

2. A gate for a pneumatic conveyor, substantially as described with reference to, and as shown in, the accompanying drawings.

3. A pneumatic conveyor including a gate according to claim 1 or 2.