FI68766C - BRANDSLANGLYFTANORDNING - Google Patents

Description

68766

Fire hose lifter

The invention relates to a fire hose lifting device by means of which fire hoses are lifted to a hose tower for drying, which device 5 comprises a vertical profile along which a lifting hose mounted on the suspension rod is used to lift and lower the fire hoses.

For drying fire hoses, fire stations usually have a hose tower in which the hoses are raised to a vertical position either 10 times with the connectors down or straight. Drying is done by natural air circulation.

Today, lifting is done either manually or mechanically. Common to current mechanical lifting devices is that the lifting takes place freely, i.e. the hoisting rope, the wire 15 or the chain hangs freely from the hoist. Only at the end of the lifting is the hook or other hose or hose hanger attachment at the end of the lifting means guided to a certain position, after which the lateral displacement and attachment of the hose or hose hanger to the top of the tower can be performed.

20 The worst disadvantages of current equipment are the oscillation during lifting and the complex and expensive structure of the guide and the lifting hook.

The device according to the invention provides a considerable improvement in the above-mentioned drawbacks. To achieve this, the device according to the invention is characterized by what is set forth in the characterizing part of claim 1.

In the following, the invention will be explained in detail with reference to the accompanying drawings.

Figure 1 schematically shows a hose tower.

Figure 2 shows a side view of a device according to the invention.

Figure 3 shows the operating steps of the device according to the invention during lifting and lowering.

Figure 1 shows a hose tower using a lifting device according to the invention. Lifting takes place up to the vertical profile 2 68766 3, 5. Lifting and horizontal transfer are performed by a hoist 1 with a frame 2. The hoist 1 with its frame 2 runs along the horizontal profile 10. The hoses 15 are suspended on the suspension rods 9 on the hose level 7.

Figure 2 shows a side view of an embodiment of the device according to the invention. The invention uses a standard chain hoist 1 mounted on a frame 2. A vertical profile 3 is attached to the frame 2, which is made parallel to the vertical profile 5 during lifting and lowering by means of a guide 4 attached to the vertical profile 5. Vertical profiles are a customized C-profile used in small crane systems.

In the vertical profiles 3 and 5, a carriage 6 runs on the hoist chain, which forms a lifting grab in which the suspension bar 9 of the hose-15 is placed.

The attachment of the hoses to the suspension rod 9 depends on whether the hoses are lifted straight or doubled. The hoist frame 2 is attached to a carriage 3 which is driven by a gear motor 11 and a toothed belt 12 in a horizontal profile 10.

20 An adapted C-profile is used as the horizontal profile 10.

The suspension rods 9 are placed on the hose level 7 in the hose positions 8. The hose plane 7 has a widening at the vertical profile 5, from which the suspension rods 9 can rise above the plane.

In the device according to the invention, the lift 1 and the gear motor 11 are controlled by programmable logic controller (PLC).

Inductive proximity switches 30 14a, b, c, d, e, f are used to determine the positions of the lifting grapple 6 and the frame 2 of the elevator 1.

Figure 3 shows the operation of the device according to the invention during lifting 1 and lowering 2. At the beginning of the lift 1a, the lifting grapple 6 of Fig. 2 is down, the sensor 14f, and the movable vertical profile at the lifting / lowering location 14e. The suspension rod 9 35 with its hoses is placed in the lifting grapple 6. When a lifting command is given to the programmable logic, the chain hoist 1 raises the lifting grapple 6 to position 1b, the sensors 14e and 14a being affected. The programmable logic now initiates a side shift with the gear motor 11, which continues to position 1c, under the influence of sensors 14a and 14c. The lifter 1 then lowers the hoist 5 to position 1d, the sensors 14c and 14b being affected. The suspension rod 9 rests on the hose level 7 in the hose position 8.

The gear motor 11 moves the lift 1 to position 1e, the sensors 14b and 14e being affected. If the hose position closest to the lifting point is full, the sensor 14d is actuated and the device waits for a lowering command. If the sensor 14d is not affected, the lifter 1 lowers the lifting grapple 6 to the position 1f, the sensors 14e and 14f affected. A new suspension bar 9 can now be placed in the lifting grapple 6 and the lifting repeated.

15 The count, Fig. 3, item 2, starts with a count command given to the programmable logic from position 2a if the hose level is not full, i.e. the sensor 14d is not affected. The lifter 1 raises the grapple 6 to position 2b, the sensors 14e and 14b are affected and the lifting grapple is ready in position 2b and the lowering 20 starts directly from position 2b. The gear motor 11 moves the lift to position 2c, the sensor 14c acting a second time, the sensor 14b still acting. The lifter 1 raises the lifting grapple 6 to position 2d, the sensors 14a and 14c being affected. During lifting, the suspension rod 9 remains in the lifting grapple 6 and 25 rises from the hose position 8 above the hose plane 7.

The gear motor 11 moves the lift 1 to position 2e under the influence of the sensors 14a and 14e. The lifter 1 lowers the lifting grapple 6 to position 2f under the influence of the sensors 14e and 14f.

The suspension rod 9 can be detached from the lifting grab 6 and 30 to give a new lowering command.

Claims (3)

4,68766 A fire hose lifting device for lifting fire hoses to a hose tower for drying, the device comprising 5 vertical profiles (3, 5) along which the lifting and lowering of fire hoses attached to the suspension rod (9) are performed by means of a lifting grab (6) moved by the lift (1). , that the vertical profile is in two parts comprising a lower part (5) and an upper part (3) fixed to the frame (2) of the lifter 10 (1) and moves horizontally on the horizontal profile (10) in the region of the upper part (3). Device according to Claim 1, characterized in that the upper end of the lower part (5) of the vertical profile has a guide (4) which guides the parts (3, 5) of the vertical profile in one direction. Device according to Claim 1 or 2, characterized in that a toothed belt (12) is used for the horizontal movement of the hoist frame (2) on the profile (10).