SU1303533A1 - Construction hoist - Google Patents

Abstract

The invention relates to lifting devices, namely to construction elevators with horizontal materials feeding into the building opening and lowering the load onto the floor. The purpose of the invention is to improve the operating conditions. Construction. The lift includes a support frame 1 with a lifting mechanism for the cargo carriage. (L with about with 01 with with FSh.1

Description

a mast 2, a cargo carriage with a sliding frame 5 and a locking device that turns off the drive of the lifting mechanism when the sliding frame is horizontally moved and has a counterweight at one end, and a cable at the other end, passed along the exit1

FIELD OF THE INVENTION The invention relates to lifting means, namely to construction elevators with horizontal material feeding into the building opening and lowering them onto the floor.

The purpose of the invention is to improve the operating conditions.

Figure 1 shows the construction lift, a general view; figure 2 - view A on. figure 1; on FIG. 3 - the position of the lever of the locking device with the horizontal movement of the sliding frame of the cargo carriage; figure 4 - lowering the tub in the opening to the overlap -.

The construction hoist comprises a support frame 1 with a lifting mechanism for a freight carriage, for example, a freight winch, a sectional mast 2, a freight carriage 3 including the carriage itself. 4, moving along the mast, and the sliding frame 5, moving along the rollers mounted on the carriage bracket.

On the carriage 4 there are eyelets in which holes the axis 6 is installed is rigidly connected to the plug 7 of the locking device equipped with pins 8 between which the cable 9 is passed, fixed on the mast in its upper part. In the lower part of the lift, the cable bends around blocks 10 and 11 mounted on the support frame 1 and the lower section of the mast 2, and passed through the slot of the lever 12 mounted on the axis 13 attached to the lower section of the mast. The load 14 is fixed at the end of the cable, and the stop 15 is located under the lever 12. Above the load 14 and above the lever arm 12, the limit switches 16 and 17 of the load carriage travel up and down respectively are set. At the end of the axis 6 of the plug 7 is rigidly fixed

the visitor patfl, and hung on its end. By manually pulling and releasing the free end of the cable, the drive and the load carriage lift drive are respectively turned on and off. 4 il.

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a lever 18, at one end of which a weight 19 is mounted, and at the other end a wire 20, extending along the sliding frame and passing through the bracket 21 at the end of the frame. A handle 22 is fixed on the free end of the cable. On the sliding frame 5 there is an emphasis 23 serving as an impact on the lever 18 in the initial position of the locking device. A badge 24 is suspended from the front frame 5 in its front part. In addition, the front frame 5 is provided on the upper platform 25.

Construction hoist works as follows ..

The elevator driver, who is on the ground, by pushing the button up of the push-button control, lifts the cargo carriage 3 with the load suspended in the bucket 24 to the level of the window sill of the opening of the given floor of the building. In this case, the locking device is in the initial position, the fork

7, by acting on the lower end of the lever 18 of the stop 23 of the sliding frame, occupies a vertical position, in which the cable 9 is vertically passed between the pins 8 and pulled over by the load 14. At the beginning of the extension of the sliding frame 5, the stop 23 moves away from the lever 18, which under the action of the load 19 , creating a moment about the axis 6, exceeding the moment from the load 14, turns the fork 7, the pins of which, acting on the cable 9, pull it. At the same time, the load 14, moving up, presses the lever of the final switch 16, and the stop 15 by turning the lever arm

12 - to the limit switch lever 17, disabling the drive of the lifting mechanism of the cargo carriage on the support frame.

8end of frame extension 5, when

The load truck 24 is in the opening of the building above the floor covering, the worker taking the load on the floor pulls the cable 20 by turning the lever 18 and, therefore, the plug 7, which occupies its original vertical position. With this, the cable 9, straightening, is lowered, the load 14 and the stop 15, lowering, release the levers of the limit switches 16 and 17, the drive of the cargo winch is activated. A worker from the floor signals the lift operator who presses the Down button of the button post. The cargo carriage goes down, and the tub suspended from the sliding frame is lowered onto the floor. The worker on the floor at the end of the lowering of the tub releases the handle 22 of the cable 20 and 20, as a result of which the fork 7 is rotated by the action of the load 19, blocking, by pulling the cable 9, the drive of the lifting mechanism.

After the unloading is completed, all work operations are performed in reverse order. At the end of the opening of the frame 5 from the opening, it is separated from the possible displacement.

Claims (1)

5 Formula of Invention A construction hoist containing a sectional mast mounted on a support frame with a cargo winch, a cargo carriage with a retractable frame and a cable connected to a blocking device, disabling the drive mechanism for lifting the cargo carriage during the horizontal movement of the retractable frame, which is in order to improve the operating conditions, the locking device is equipped with a double-arm lever with a counterweight located on the lower arm of the lever and a control cable attached to the upper arm of the specified lever The free end of the control cable is located at the front end of the sliding frame of the cargo carriage and with a handle. . 21 ipK.i g Editor M. Tsitkina Compiled by V. Samsons Tehred L. Oleynik Proofreader A.Zimokosov Order 1270/25 Circulation 721 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4