CN112239141A

CN112239141A - Convenient folding hoist and mount frame

Info

Publication number: CN112239141A
Application number: CN202011514986.6A
Authority: CN
Inventors: 原国森; 兖利鹏; 于智宏; 郑泽宇; 李美美
Original assignee: Henan Institute of Technology
Current assignee: Henan Institute of Technology
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-01-19
Anticipated expiration: 2040-12-21
Also published as: CN112239141B

Abstract

The invention belongs to the technical field of hoisting equipment, and particularly relates to a conveniently-folded hoisting frame which comprises a portal frame and a winch connected to the portal frame, wherein the portal frame comprises a portal bracket and two folding bases connected to vertical supports of the portal bracket, each folding base comprises a storage box and two supporting arms connected to the storage box, each storage box comprises two U-shaped wall plates, the vertical supports penetrate into U-shaped openings of the wall plates to realize connection with the storage box, and the two wall plates are arranged in a clearance manner to form a cavity for storing the supporting arms; the wall plate is provided with U-shaped sliding grooves, and the supporting arm is provided with sliding blocks matched with the two U-shaped sliding grooves; the supporting arm is provided with a stop block. The invention is used for solving the technical problem that the existing hoisting frame structure is fixed and is not convenient to fold.

Description

Convenient folding hoist and mount frame

Technical Field

The invention belongs to the technical field of hoisting equipment, and particularly relates to a conveniently-folded hoisting frame.

Background

In the work of loading, transporting, installing, maintaining and the like of equipment with large volume and heavy weight, various hoisting tools are needed to hoist the equipment, workpieces, appliances, materials and the like and transfer the equipment, the workpieces, the appliances, the materials and the like to a proper position.

The hoisting machine tool that uses now is the pattern of fixed structure, can not fold after the installation, can occupy more space often not using, brings inconvenience for the user.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a hoisting frame convenient to fold, which is used for solving the technical problem that the existing hoisting frame is fixed in structure and is inconvenient to fold.

In order to achieve the purpose, the technical scheme of the invention is as follows: a hoisting frame convenient to fold comprises a portal frame and a winch connected to the portal frame, wherein the portal frame comprises a door-shaped support and two folding bases connected to vertical supports of the door-shaped support, each folding base comprises a containing box and two supporting arms connected to the containing box, each containing box comprises two U-shaped wall plates, the vertical supports penetrate into U-shaped openings of the wall plates to be connected with the containing box, and a cavity for containing the supporting arms is formed in the gap between the two wall plates; the wall plate is provided with U-shaped sliding grooves, and the supporting arm is provided with sliding blocks matched with the two U-shaped sliding grooves; and the support arms are provided with stop blocks for stopping the vertical supports from rotating relative to the support arms when the two support arms slide to the lower part of the vertical supports along the U-shaped sliding grooves and are vertical to the vertical supports.

Preferably, the stop block is of a triangular prism structure with a right-angled triangle cross section, and when the two support arms extend to the lower side of the vertical support, the right-angled surface of the stop block abuts against the side surface of the vertical support.

Preferably, a limiting groove is arranged at the U-shaped bottom of the U-shaped sliding groove, the limiting groove is positioned at one side, close to the vertical support, of the U-shaped sliding groove, and the limiting groove is matched with the sliding block; when the two supporting arms extend to the lower part of the vertical support in a suspending way, the sliding block slides into the limiting groove.

Preferably, the folding base further comprises a connector for connecting the two support arms.

Preferably, the connecting member includes a connecting string connected to an end of one of the support arms and a connecting ring connected to an end of the other support arm.

Preferably, the end of the connecting rope is provided with a hook.

Preferably, the folding base further comprises a roller disposed on the support arm.

The technical scheme adopted by the invention has the beneficial effects that:

the folding chair is convenient to fold, and the occupied space is reduced. The foldable base is arranged at the bottom of the vertical support of the portal frame and comprises a containing box with a U-shaped cavity body and two supporting arms which are connected with the containing box and can be contained in the containing box, U-shaped sliding grooves formed in two wall plates of the containing box are in sliding fit with sliding blocks arranged on the two supporting arms, and when the sliding blocks slide upwards to the top along the U-shaped sliding grooves, the supporting arms are integrally contained in the cavity; the sliding block slides downwards along the U-shaped sliding groove, the supporting arms are rotated to be vertical to the vertical supports and then continue to slide to the lower portions of the vertical supports, the end portions of the two supporting arms are mutually attached tightly to form a structure for supporting the door-shaped support, the stop block arranged on the upper side face of each supporting arm can stop the vertical supports and the supporting arms from rotating, and the supporting stability of the supporting arms for the door-shaped support is guaranteed.

Drawings

Figure 1 is a general schematic view of an embodiment of a conveniently folded sling rack;

FIG. 2 is a schematic sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic view of the folding base of FIG. 2 in a folded state;

figure 4 is a partial schematic view of an embodiment of a conveniently folded sling rack;

fig. 5 is a schematic internal plan view at B in fig. 4.

In the drawings 1-5, a door-shaped support 1, a vertical support 11, a winch 2, a storage box 3, a cover plate 31, a wall plate 32, a 321-U-shaped sliding groove 322, a limiting groove 4, a supporting arm 41, a stop block 42, a sliding block 5, a connecting rope 6, a hook 6 and a roller 7 are shown.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, not all embodiments, and do not limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The specific embodiment is as follows:

example 1, as shown in figures 1-5, a conveniently collapsible sling comprising a gantry and a hoist 2. The hoist 2 is fixedly connected to the top end of the portal frame. The portal frame comprises a portal type bracket 1 and a folding base. The portal frame 1 is composed of two vertical supports 11 and a cross support connected between the top ends of the two vertical supports 11.

The folding base is provided with two, connects in the bottom of two vertical braces 11 respectively. The folding base comprises a receiving box 3 and two support arms 4. The storage box 3 is composed of two U-shaped wall plates 32 and two cover plates 31. The two walls 32 are identical in structure and are symmetrically arranged, and a gap existing between the two walls 32 forms a cavity for accommodating the support arm 4. The cover plate 31 is fixed to the top end of the wall plate 32. The two wall plates 32 are sleeved at the end parts of the vertical supports 11 through U-shaped openings thereof, so that the containing box 3 is connected with the vertical supports 11. The inner side of the wall plate 32 is provided with a U-shaped sliding groove 321 which is consistent with the overall direction of the wall plate 32, and the U-shaped sliding groove 321 bypasses the bottom end of the vertical support 11. The front and rear side walls of the end part of the supporting arm 4 are provided with sliding blocks 42, and the sliding blocks 42 are matched with the U-shaped sliding grooves 321 and can slide in the U-shaped sliding grooves 321. When the support arm 4 is housed in the housing box 3, the slider 42 is located at the upper end of the support arm 4. In this embodiment, the sliding block 42 may be a smooth cylinder or a bearing.

When the two support arms 4 slide upwards to the top end along the U-shaped sliding grooves 321, the support arms 4 can be tightly attached to the vertical supports 11 and are collected in the cavity of the storage box 3. The two support arms slide downwards along the U-shaped sliding groove 321 and rotate to be perpendicular to the vertical support 11 at proper positions, and then continue to slide downwards and towards the middle of the U-shaped sliding groove 321, so that the two support arms 4 extend to the lower part of the vertical support 11 in a suspended mode, and at the moment, the two support arms 4 are in a support state for the vertical support 11, and the portal frame is guaranteed to stand stably for hoisting.

The support arm 4 is provided with a stopper 41 on an upper side surface when in a support state to the stand 11. In the present embodiment, the stopper 41 has a triangular prism structure with a right triangle section. One right-angle surface of the stop block 41 is fixedly connected to the support arm 4; when the two support arms 4 slide to be tightly attached to each other and are perpendicular to the vertical support 11, the other right-angle surface of the stop block 41 abuts against the side wall of the vertical support 11, so that the vertical support 11 and the support arms 4 can be effectively stopped from rotating, and the stability of the portal frame is ensured.

When the conveniently-folded hoisting frame is used, the two supporting arms 4 slide downwards along the U-shaped sliding groove 321 through the sliding blocks 42, the supporting arms 4 are rotated to be perpendicular to the vertical support 11 in the process, and continuously slide downwards and then slide towards the middle of the bottom of the U-shaped sliding groove 321, and finally the two supporting arms 4 are suspended below the vertical support 11, and the door-shaped support 1 supported by the two supporting arms 4 is in a vertical state; meanwhile, the right-angle surface of the stop block 41 abuts against the side surface of the vertical support 11, so that the rotation between the vertical support 11 and the support arm 4 is effectively stopped. The hoisting machine 2 is then used to hoist the equipment. When not needing hoist and mount to use, upwards slide to the top along U type spout 321 with support arm 4 to rotatory support arm 4 is accomodate in the cavity of containing box 3, has reduced the occupation space of this hoist and mount frame, conveniently accomodates, uses the flexibility strong.

Furthermore, the U-shaped bottom of the U-shaped sliding groove 321 is further communicated with two limiting grooves 322, and the two limiting grooves 322 are located on one side of the U-shaped sliding groove 321 close to the vertical support 11. When the two support arms 4 slide to the lower part of the vertical support 11 and are in a support state, the slide blocks 42 of the two support arms 4 are just clamped into the corresponding limit grooves 322 under the action of gravity of the door-shaped support 1, so that the vertical support 11 and the support arms 4 are prevented from sliding relatively, and the support of the support arms 4 on the door-shaped support 1 is more reliable.

Further, a connecting member is provided at the end of the two support arms remote from the slider 42. The connecting element comprises a connecting rope 5 and a connecting ring (not shown in the figure). The connecting rope 5 is connected to the end of one of the support arms 4, and the connecting ring is fixed to the end of the other support arm 4. When the two support arms 4 are stored in the storage box 3, the connecting rope 5 is wound around the storage box 3 and then connected with the connecting ring, so that the two support arms 4 are prevented from sliding freely. More specifically, the end of the connecting rope 5 is also provided with a hook 6, which facilitates the binding of the connecting rope 5 to the two support arms 4.

Further, in order to facilitate the whole transportation of the hoisting frame, the bottom of the supporting arm 4 is provided with a roller 7. When the supporting arm 4 is received in the receiving box 3, the roller 7 is positioned between the supporting arm and the vertical support 11, and the roller 7 is positioned at the bottom of the supporting arm 4 when the supporting arm 4 is in a supporting state, so that the hoisting frame is convenient to move.

The invention is described above with reference to the accompanying drawings, it is obvious that the specific implementation of the invention is not limited by the above-mentioned manner, and it is within the scope of the invention to adopt various insubstantial modifications of the technical solution of the invention or to apply the concept and technical solution of the invention directly to other occasions without modification.

Claims

1. A hoisting frame convenient to fold comprises a portal frame and a winch connected to the portal frame, and is characterized in that the portal frame comprises a portal type support and two folding bases connected to vertical supports of the portal type support, each folding base comprises a containing box and two supporting arms connected to the containing box, each containing box comprises two U-shaped wall plates, the vertical supports penetrate into U-shaped openings of the wall plates to be connected with the containing box, and a cavity used for containing the supporting arms is formed in a gap between the two wall plates; the wall plate is provided with U-shaped sliding grooves, and the supporting arm is provided with sliding blocks matched with the two U-shaped sliding grooves; and the support arms are provided with stop blocks for stopping the vertical supports from rotating relative to the support arms when the two support arms slide to the lower part of the vertical supports along the U-shaped sliding grooves and are vertical to the vertical supports.

2. A conveniently collapsible lifting frame as claimed in claim 1 wherein said stop is of triangular prism configuration with a right triangle cross section, the right angle face of said stop abutting against the side of said vertical support when said two support arms are suspended below said vertical support.

3. A conveniently folded lifting frame according to claim 1, wherein a limiting groove is arranged at the bottom of the U-shape of said U-shaped sliding groove, said limiting groove is positioned at one side of said U-shaped sliding groove close to said vertical support, and said limiting groove is matched with said sliding block; when the two supporting arms extend to the lower part of the vertical support in a suspending way, the sliding block slides into the limiting groove.

4. A collapsible hanger according to any one of claims 1 to 3 wherein the folding base further comprises a connector for connecting the two support arms.

5. A collapsible hanger according to claim 4 wherein said connector means comprises a connecting cord attached to one of said support arm ends and a connecting ring attached to the other of said support arm ends.

6. A conveniently folded lifting frame as claimed in claim 5, wherein said connecting cord is provided with a hook at its end.

7. A conveniently collapsible sling rack as defined in claim 3 wherein said folding base further includes rollers mounted to said support arms.