Gantry crane stopper

Abstract

The utility model relates to a gantry crane stopper. The stopper is fixed on an I-shaped steel main beam of a gantry crane, is used for limiting the moving range of an electric hoist on the main beam, and is characterized by comprising a U-shaped connecting bottom plate, one side of the U-shaped connecting bottom plate is a long plate, the other side of the U-shaped connecting bottom plate is a short plate, a threaded hole is formed in the short plate, and a set screw used for pressing the flange on one side of the I-shaped steel is screwed in the threaded hole. A baffle is connected to the lower bottom face of the long plate, a connecting hole is further formed in the long plate, an L-shaped pressing plate with a hole is fixed to the upper portion of the long plate through the connecting hole and a bolt, and the pressing plate and a U-shaped connecting bottom plate press the other side flange of the I-shaped steel through bolts. The stopper is fixed on the I-shaped steel through the set screw and the bolt, once the electric hoist moves out of a control range, the electric hoist touches a baffle plate of the stopper, and the electric hoist does not walk, so that a safety protection effect is achieved. The stopper is simple in structure and wide in applicability, and the position of the stopper can be adjusted on the I-shaped steel.

Description

TECHNICAL FIELD

[0001] The utility model relates to hoisting equipment, especially a stopper for a small gantry crane. BACKGROUND

[0002] Some small gantry cranes have a frame type gantry crane, which has two upright columns, a cross beam connected to the top of the two upright columns, and a mobile roller at the bottom of the gantry crane. A hoisting device, such as a hoist, is hung on the cross beam. The gantry crane is moved so that the hoisting device on the cross beam is above the hoisted object, and then the hoisted object is lifted to the required height. The gantry crane is then moved to transfer the hoisted object. The movement of the hoisting device on the gantry crane is usually controlled by a remote control switch. However, in actual use, the remote control device may malfunction or the operator may make a mistake, causing the hoisting device to move to the end of the gantry crane and collide with other objects, resulting in damage to personnel and equipment. SUMMARY

[0003] The utility model aims to provide a gantry crane stopper with simple structure, easy manufacturing and use.

[0004] To meet the above requirements, the utility model is implemented by the following technical scheme: it is fixed on the I-beam of the gantry crane and used to limit the movement range of the electric hoist on the I-beam. It includes a U-shaped connecting bottom plate bent into one long plate and one short plate. A threaded hole is provided on the short plate, and a stop screw is screwed into the threaded hole to press the side flange of the I-beam. A baffle is connected to the lower bottom surface of the long plate. A connecting hole is provided on the long plate. An L-shaped pressing plate with a hole is fixed above the long plate through the connecting hole and a bolt. The pressing plate and the U-shaped connecting bottom plate press the other side flange of the I-beam through the bolt.

[0005] The baffle is an extension plate extending from the side surface of the long plate and bent downward.

[0006] The threaded hole is a light hole provided on the short plate, and a nut is welded on the light hole to form the threaded hole.

[0007] The connecting hole is a long connecting hole.

[0008] The threaded hole and the connecting hole are arranged in two rows in front and back.

[0009] The gantry hanging frame stopper designed according to the above scheme is used in the following way: the stopper is installed at both ends of the I-shaped steel of a gantry hanging frame, and is fixed on the I-shaped steel through the fixing screw and the bolt. Once the electric hoist moves out of the control range, it will bump into the baffle of the stopper, and the electric hoist cannot move any further, thus playing a safety protection role. The stopper has simple structure, and the position of the stopper on the I-shaped steel is adjustable, so it has wide applicability. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 is a perspective view of the gantry hanging frame on which the stopper is installed;

[0011] Figure 2 is a sectional view of the stopper installed on the main beam of the I-shaped steel;

[0012] Figure 3 is an exploded view of the stopper;

[0013] Figure 4 is an exploded view of the gantry hanging frame and the stopper;

[0014] Figure 5 is a perspective view of the gantry hanging frame on which the stopper is installed when it is working.

[0015] In the drawing: 1, I-shaped steel; 2, electric hoist; 3, stopper; 4, long plate; 5, short plate; 6, connecting bottom plate; 7, light hole; 8, nut; 9, fixing screw; 10, baffle; 11, long connecting hole; 12, bolt; 13, hole; 14, pressing plate. DETAILED DESCRIPTION

[0016] The utility model will be further described in combination with the drawing and specific embodiments.

[0017] Figure 1 is a structural schematic view of the gantry hanging frame on which the stopper is installed. As shown in the drawing, it is a stopper 3 fixed on the main beam of the I-shaped steel 1 of the gantry hanging frame, and is used for limiting the moving range of the electric hoist 2 on the main beam. The stopper 3 is like Figure 2 Figure 3As shown, it comprises a U-shaped connecting base plate 6 with one long plate 4 and one short plate 5, a light hole 7 is formed on the short plate 5, a nut 8 is welded on the light hole 7, a set screw 9 is screwed in the threaded hole of the nut 8 for pressing one side flange of the I-beam 1, an extension plate is extended from the side of the long plate 4, the extension plate is bent downward to form a baffle 10, a long connecting hole 11 is formed on the long plate 4, an L-shaped pressing plate with a hole 13 is fixed above the long plate 4 through the long connecting hole 11 and a bolt 12, and a pressing plate 14 is used to press the other side flange of the I-beam 1 through the bolt 12 and the U-shaped connecting base plate 6. The threaded holes composed of the light hole 7 and the nut 8 and the long connecting hole 11 are arranged in two rows to improve the connecting strength of the stopper 3 to the girder of the I-beam 1. The structure of the portal crane and the stopper 3 is shown in Figure 4 As shown, the stopper 3 is installed at both ends of the I-beam 1 of the portal crane, and the stopper 3 is fixed on the I-beam 1 through the set screw 9 and the bolt 12 to limit the moving range of the electric hoist on the girder as shown in Figure 5 As shown, the stopper 3 is installed at both ends of the I-beam 1 of the portal crane, and the stopper 3 is fixed on the I-beam 1 through the set screw 9 and the bolt 12 to limit the moving range of the electric hoist on the girder as shown in Figure 5 As shown, the stopper 3 is installed at both ends of the I-beam 1 of the portal crane, and the stopper 3 is fixed on the I-beam 1 through the set screw 9 and the bolt 12 to limit the moving range of the electric hoist on the girder as shown in Figure 5 As shown, the stopper 3 is installed at both ends of the I-beam 1 of the portal crane, and the stopper 3 is fixed on the I-beam 1 through the set screw 9 and the bolt 12 to limit the moving range of the electric hoist on the girder as shown in Figure 5 As shown, the stopper 3 is installed at both ends of the I-beam 1 of the portal crane, and the stopper 3 is fixed on the I-beam 1 through the set screw 9 and the bolt 12 to limit the moving range of the electric hoist on the girder as shown in Figure 5 As shown, the stopper

Claims

1. A gantry cradle blocker characterized by It comprises a U-shaped connecting base bent into one side long plate and one side short plate, a threaded hole is arranged on the short plate, a tight screw for pressing one side flange of the I-shaped steel is screwed in the threaded hole, a baffle is connected on the lower bottom surface of the long plate, a connecting hole is arranged on the long plate, an L-shaped pressing plate with hole is fixed above the long plate through the connecting hole and bolt, the pressing plate and the U-shaped connecting base press the other side flange of the I-shaped steel through bolt.

2. A gantry cradle blocker according to claim 1, wherein The baffle is an extension plate extending from the side surface of the long plate, and the extension plate is bent downward to form.

3. A gantry cradle blocker as defined in claim 1 wherein The threaded hole is a light hole arranged on the short plate, and a nut is welded on the light hole to form.

4. A gantry cradle blocker as defined in claim 1, wherein The connecting hole is a long connecting hole.

5. A gantry cradle blocker as defined in claim 1, wherein The threaded hole and the connecting hole are both arranged in two rows in front and back.

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