Movable supporting leg of small tower type hoisting machine lifting trailer

Abstract

The utility model discloses a movable supporting leg of a small tower type hoisting machine lifting trailer, which comprises a telescopic supporting leg body and a foot pad, right-angle hanging pieces are respectively arranged on two sides of the foot pad, the upper ends of the right-angle hanging pieces are hung in U-shaped groove frames, the U-shaped groove frames are arranged on two sides of the bottom of the telescopic supporting leg body, a U-shaped sliding groove is arranged on the left side of each U-shaped groove frame, and the left side of each U-shaped sliding groove is provided with a sliding block. A T-shaped frame is arranged at the top of the right end of the U-shaped sliding groove and hinged to the left side face of the telescopic supporting leg body, a first connecting plate is arranged at the top of the left end of the U-shaped sliding groove, and a second connecting plate is arranged on the left side face of the upper portion of the telescopic supporting leg body. The U-shaped sliding groove is formed in the left end of the U-shaped groove frame, the foot pad can be fixed in the U-shaped sliding groove, the U-shaped sliding groove and the supporting leg are hinged together, the bolt is arranged between the first connecting plate and the second connecting plate, the folded U-shaped sliding groove can be fixed, a worker can conveniently store and take the foot pad, and operation is easy.

Description

Technical Field

[0001] The utility model relates to a fixing device for a trailer footpad, in particular to a movable leg for a small tower crane to lift a trailer, belonging to the technical field of cranes. Background Art

[0002] When using a crane device, a footpad is placed under the lower part of the device leg to increase the supporting area, provide better stability and balance, and avoid the leg sinking due to soft or uneven ground, resulting in potential safety hazards in the lifting operation. The existing footpad and the leg are separate, and it is easy to have improper storage and loss of the footpad, seriously affecting subsequent construction. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a movable leg for a small tower crane to lift a trailer, which is convenient for workers to store the leg, easy to take, and simple to operate when the construction is completed.

[0004] The technical solution adopted by the utility model to solve the technical problem is as follows:

[0005] A movable leg for a small tower crane to lift a trailer includes a telescopic leg body and a footpad. The footpad is arranged below the telescopic leg body. Right-angle hanging parts are respectively arranged on both sides of the footpad. The upper ends of the right-angle hanging parts are hung in U-shaped groove frames. The U-shaped groove frames are arranged on both sides of the bottom of the telescopic leg body. A U-shaped sliding groove is arranged on the left side of the U-shaped groove frame. A T-shaped frame is arranged at the top of the right end of the U-shaped sliding groove. The T-shaped frame is hinged to the left side surface of the telescopic leg body. A first connecting plate is arranged at the top of the left end of the U-shaped sliding groove. A second connecting plate is arranged on the left side surface of the upper part of the telescopic leg body.

[0006] There are two U-shaped groove frames, and the height of the U-shaped groove frames is the same as that of the U-shaped sliding groove. The distance between the left end of the U-shaped groove frame and the right end of the U-shaped sliding groove is 1 cm.

[0007] Through holes are dug at the top of the right-angle hanging parts, and corresponding through holes are arranged at the positions corresponding to the left side of the U-shaped sliding groove. Bolts are arranged at the through holes to fixedly connect the right-angle hanging parts and the U-shaped sliding groove together.

[0008] Through holes are respectively dug on the first connecting plate and the second connecting plate, and bolts are arranged at the through holes to fixedly connect the first connecting plate and the second connecting plate together.

[0009] An arc-shaped limiting plate is arranged on the left side of the top of the footpad.

[0010] The lower part of the left side of the telescopic outrigger body is provided with a U-shaped bracket. The upper end of the T-shaped frame is rotatably connected to the U-shaped bracket, and a tightening bolt is arranged outside the shaft sleeve.

[0011] The positive and beneficial effects of the utility model are as follows:

[0012] 1. By hinging the U-shaped chute to the outrigger and arranging bolts between the first connecting plate and the second connecting plate, the utility model facilitates folding and fixing the U-shaped chute carrying the foot pad, avoiding the loss of the foot pad.

[0013] 2. By arranging a U-shaped chute at the left end of the U-shaped groove frame, the right-angle hanging piece can slide into the U-shaped chute, and the right-angle hanging piece is fixedly connected to the U-shaped chute through bolts, so that the foot pad is fixed in the U-shaped chute, which is convenient to take and simple to operate, and is convenient for the staff to store the foot pad. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of the utility model;

[0015] Figure 2 is a schematic structural diagram of the foot pad of the utility model;

[0016] Wherein: 1 - outrigger, 2 - foot pad, 3 - right-angle hanging piece, 4 - U-shaped groove frame, 5 - U-shaped bracket, 6 - T-shaped frame, 7 - U-shaped chute, 8 - first connecting plate, 9 - second connecting plate, 10 - bolt, 201 - arc-shaped limiting plate. Detailed Embodiment

[0017] The utility model will be further explained and described below in conjunction with the drawings:

[0018] Embodiment, referring to Figure 1 - Figure 2 , a movable outrigger for a small tower crane plate-up trailer, including a telescopic outrigger body 1 and a foot pad 2. A foot pad 2 is arranged below the telescopic outrigger body 1. Right-angle hanging pieces 3 are respectively arranged on both sides of the foot pad 2. The upper ends of the right-angle hanging pieces 3 are hung in a U-shaped groove frame 4. The U-shaped groove frame 4 is arranged on both sides of the bottom of the telescopic outrigger body 1. A U-shaped chute 7 is arranged on the left side of the U-shaped groove frame 4. A T-shaped frame 6 is arranged at the top of the right end of the U-shaped chute 7. The T-shaped frame 6 is hinged to the left side surface of the telescopic outrigger body 1. A first connecting plate 8 is arranged at the top of the left end of the U-shaped chute 7. A second connecting plate 9 is arranged on the left side surface of the upper part of the telescopic outrigger body 1.

[0019] There are two U-shaped groove frames 4, and the height of the U-shaped groove frame 4 is the same as the height of the U-shaped chute 7. The distance between the left end of the U-shaped groove frame 4 and the right end of the U-shaped chute 7 is 1 cm.

[0020] A through hole is dug at the top of the right-angle hanging part 3, and a matching through hole is provided at the position corresponding to the left side of the U-shaped chute 7. A bolt 10 is provided at the through hole to fixedly connect the right-angle hanging part 3 and the U-shaped chute 7 together.

[0021] Through holes are respectively dug on the first connecting plate 8 and the second connecting plate 9, and a bolt 10 is provided at the through hole to fixedly connect the first connecting plate 8 and the second connecting plate 9 together.

[0022] An arc-shaped limiting plate 201 is provided on the left side at the top of the foot pad 2.

[0023] A U-shaped bracket 5 is provided at the lower part of the left side surface of the telescopic leg body 1. The upper end of the T-shaped frame 6 is rotatably connected with the U-shaped bracket 5, and a tightening bolt is provided outside the sleeve.

[0024] In the above description, the foot pad is a prior art, and its structure will not be described in detail. By providing an arc-shaped limiting plate on the left side at the top of the foot pad, when the right-angle hanging part slides along the U-shaped frame, it plays a role of limiting and prompting, facilitating the staff to quickly place the foot pad in place.

[0025] In the above description, the upper end of the T-shaped frame is rotatably connected with the U-shaped through a shaft, and a positioning bolt is provided outside the sleeve to fix the position of the U-shaped chute, facilitating the staff to take the foot pad.

[0026] In the above description, when the U-shaped chute rotates upward by 90 degrees, the first connecting plate is located below the second connecting plate, and the two are fixed by bolts, so that the whole chute is fixed.

[0027] In the above description, the openings of the U-shaped chute and the U-shaped trough frame are symmetrically distributed. The right-angle hanging part can move horizontally along the U-shaped trough frame into the U-shaped chute, and then the right-angle hanging part is fixed in the U-shaped chute by bolts, so that the U-shaped chute is fixed.

[0028] In the above description, the top of the right-angle hanging part can be hung in the U-shaped trough frame or the U-shaped chute.

[0029] In the present utility model, by providing a U-shaped chute at the left end of the U-shaped trough frame, the foot pad can be fixed in the U-shaped chute. By hinging the U-shaped chute with the leg and providing a bolt between the first connecting plate and the second connecting plate, the folded U-shaped chute can be fixed, facilitating the staff to store the foot pad, which is convenient to take and simple to operate.

Claims

1. An active leg of a plate-lifting trailer for a small tower crane, comprising a telescopic leg body (1) and a foot pad (2), characterized in that: A foot pad (2) is provided below the telescopic outrigger body (1). Right-angle hanging parts (3) are respectively provided on both sides of the foot pad (2). The upper ends of the right-angle hanging parts (3) are hung in a U-shaped groove frame (4). The U-shaped groove frame (4) is arranged on both sides of the bottom of the telescopic outrigger body (1). A U-shaped sliding groove (7) is provided on the left side of the U-shaped groove frame (4). A T-shaped frame (6) is provided at the top of the right end of the U-shaped sliding groove (7). The T-shaped frame (6) is hinged to the left side surface of the telescopic outrigger body (1). A first connecting plate (8) is provided at the top of the left end of the U-shaped sliding groove (7). A second connecting plate (9) is provided on the left side surface of the upper part of the telescopic outrigger body (1).

2. The movable outrigger of the small tower crane plate-up trailer according to claim 1, characterized in that: There are two U-shaped groove frames (4), and the height of the U-shaped groove frame (4) is the same as that of the U-shaped sliding groove (7). The distance between the left end of the U-shaped groove frame (4) and the right end of the U-shaped sliding groove (7) is 1 cm.

3. The movable outrigger of the small tower crane plate-up trailer according to claim 1, characterized in that: Through holes are dug at the top of the right-angle hanging part (3), and through holes matching the positions on the left side of the corresponding U-shaped sliding groove (7) are provided. Bolts (10) are provided at the through holes to fixedly connect the right-angle hanging part (3) and the U-shaped sliding groove (7) together.

4. The movable leg of the small tower crane plate-lifting trailer according to claim 1, characterized in that: Through holes are respectively dug on the first connecting plate (8) and the second connecting plate (9), and bolts (10) are provided at the through holes to fixedly connect the first connecting plate (8) and the second connecting plate (9) together.

5. The movable outrigger of the small tower crane plate-up trailer according to claim 1, characterized in that: An arc-shaped limiting plate (201) is provided on the left side of the top of the foot pad (2).

6. The movable outrigger of the small tower crane board-up trailer according to claim 1, characterized in that: A U-shaped bracket (5) is provided at the lower part of the left side surface of the telescopic outrigger body (1). The upper end of the T-shaped frame (6) is rotatably connected to the U-shaped bracket (5), and a tightening bolt is provided outside the shaft sleeve.

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