A lifting bracket

Abstract

The present invention provides a lifting bracket, comprising a leg and a table top fixedly connected to the upper end of the leg, a fixing ring with a diagonal rod connected to one side, an upper spring, a toggle plate, a lower spring and a clamping plate are sleeved on the top column from top to bottom in sequence, a fixing column with a bottom end fixedly connected to the table top is connected to the other side of the fixing ring, and a fixing plate for supporting the toggle plate and a fixing seat rotatably connected to one end of the clamping plate are installed on the fixing column from top to bottom in sequence. The present invention is suitable for supporting and lifting components of different heights, and can be automatically locked to prevent the top column from falling.

Description

Technical Field

[0001] The present invention relates to the technical field of large-scale engineering component installation, and more specifically, to a lifting bracket. Background Art

[0002] In engineering construction, the installation and assembly of large components require the use of brackets for support and lifting. Due to the heavy weight of large components, the lifting and moving of large components are difficult, which not only affects normal construction, but also poses a safety hazard to operators. At present, at the construction site, the existing bracket devices for large components are not simple and flexible enough, inconvenient to assemble and not convenient to move, and cannot easily support, lift and automatically lock large components. In order to meet the standardization and normalization of construction, there is an urgent need in the prior art for a lifting bracket suitable for large components that can easily support and lift large components, is flexible to use, easy to assemble and move, and can be put away when needed. Summary of the invention

[0003] In view of the above-mentioned deficiencies of the prior art, the present invention provides a lifting bracket which can support and lift large components and can be automatically locked, is easy to move and assemble, and can be made as needed at any time.

[0004] To achieve the above object, the present invention is implemented through the following technical solutions:

[0005] A lifting bracket comprises a support leg and a table top fixedly connected to the upper end of the support leg, a through hole is opened in the middle of the table top, a top column with a top plate is passed through the through hole, a fixing ring with an inclined rod connected to one side, an upper spring, a toggle plate, a lower spring and a clamping plate are sequentially sleeved on the top column from top to bottom, a fixing column with a bottom end fixedly connected to the table top is connected to the other side of the fixing ring, a fixing plate for supporting the toggle plate and a fixing seat rotatably connected to one end of the clamping plate are sequentially installed on the fixing column from top to bottom, a handle is rotatably connected to the middle of the inclined rod via a first hinge, and the front end of the handle is rotatably connected to the toggle plate via a second hinge.

[0006] The first hinge part and the second hinge part are both bolts.

[0007] The shape of the center hole of the clamping plate is circular, and the diameter of the center hole of the clamping plate is larger than the diameter of the cross section of the top column.

[0008] The shape of the central hole of the clamping plate is elliptical, and the major axis of the central hole of the clamping plate is larger than the diameter of the cross section of the top column.

[0009] The fixing column is in an inverted L shape.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows: the support height of the top plate of the device can be adjusted by means of the provided spring, handle and toggle plate, so that it is suitable for supporting and lifting components of different heights; by means of the provided spring and the clamping plate, the friction force of the clamping plate can be automatically locked to prevent the top column from falling, thereby ensuring the stability of support and lifting; by means of the provided fixed column and fixed ring, the vertical lifting and lowering of the top column can be ensured, which not only makes it convenient for construction personnel to manufacture the device on demand, but also makes it easy to assemble, disassemble and move the device, thereby meeting the safety needs of the construction site, being easy to operate, saving time and effort, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the present invention.

[0012] Figure numerals: 1-table top; 2-leg; 3-fixing ring; 4-diagonal rod; 5-handle; 6-first hinge; 7-slide plate; 8-second hinge; 9-lower spring; 10-fixing column; 11-upper spring; 12-fixing plate; 13-fixing seat; 14-clamp plate; 15-top column; 16-top plate. DETAILED DESCRIPTION

[0013] The present invention will be further described below in conjunction with embodiments.

[0014] like Figure 1 The lifting bracket shown in the figure comprises a leg 2 and a table top 1 fixedly connected to the upper end of the leg 2, a through hole is opened in the middle of the table top 1, a top column 15 with a top plate 16 is passed through the through hole, and a fixing ring 3 with a diagonal rod 4 connected to one side, an upper spring 11, a toggle plate 7, a lower spring 9 and a clamping plate 14 with a circular center hole are sequentially sleeved on the top column 15 from top to bottom, the diameter of the center hole of the clamping plate 14 is larger than the diameter of the cross section of the top column 15. In another embodiment of the present invention, the shape of the center hole of the clamping plate 14 is elliptical, and the major axis of the center hole of the clamping plate 14 is larger than the cross section of the top column 15. The diameter of the cross section; the other side of the fixing ring 3 is connected to an inverted L-shaped fixing column 10 whose bottom end is fixedly connected to the table top, and the fixing column 10 is sequentially installed with a fixing plate 12 for supporting the toggle plate 7 and a fixing seat 13 rotatably connected to one end of the clamping plate 14 from top to bottom. The inner wall of the center hole of the clamping plate 14 is lightly pressed on the outer wall of the top column 15 under the action of the lower spring 9, that is, the clamping plate 14 is in an inclined state, and the middle part of the inclined rod 4 is rotatably connected to the handle 5 through the first hinge 6, and the front end of the handle 5 is rotatably connected to the toggle plate 7 through the second hinge 8, and the first hinge 6 and the second hinge 8 are both bolts.

[0015] During the construction process, when it is necessary to lift a large component, the lifting bracket is first placed under the large component to be lifted, and the top plate 16 supports the large component. The operator presses the handle 5, and the bottom end of the inclined rod 4 is supported on the table 1. According to the lever principle, the toggle plate 7 connected to the front end of the handle 5 is lifted. Since the fixing ring 3 is fixed by the fixing column 10, the height will not change, and the upper spring 11 is compressed by the toggle plate 7. During the upward movement of the toggle plate 7, the inner wall of the circular hole of the toggle plate 7 used to sleeve the top column 15 generates a huge friction force with the top column 15, so that the top column 15 also moves upward, realizing the top plate 16. The lifting of large components above; one side of the card plate 14 is rotatably connected to the fixed seat 13. Therefore, during the upward movement of the top column 15, the inner wall of the center hole in the card plate 14 generates friction with the outer wall of the top column 15, so that the other side of the card plate 14 is slightly lifted by the top column 15 as the top column 15 moves upward. Since the inner diameter of the card plate center hole is larger than the diameter of the top column 15, when the card plate 14 is slightly lifted, the friction between the inner wall of the center hole of the card plate 14 and the outer wall of the top column 15 will decrease rapidly, so the inner wall of the card plate 14 will be gently pressed on the outer wall of the top column 15 under the pressure of the lower spring 9. When the handle 5 is released, the gravity of the top column 15 is balanced with the friction between the inner wall of the card plate 14 and the top column 15, thereby preventing the top column 15 from falling, and realizing the function of automatic locking after lifting. The operator presses, releases, and presses the handle 5 repeatedly in sequence, and finally the top plate 16 is raised to the target height.

[0016] When the large component has been lifted to the target height, the end of the clamping plate 14 that is not connected to the fixing seat 13 is pushed upward, and the top column 15 falls back due to its own gravity. After the top column 15 falls back to the initial position, the lifting bracket can be removed.

[0017] The above is only a preferred embodiment of the present invention, but the present invention is not limited to the above specific embodiments. For ordinary technicians in this field, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A lifting bracket, comprising a support leg (2) and a table top (1) fixedly connected to the upper end of the support leg (2), characterized in that: A through hole is opened in the middle of the table top (1), and a top column (15) with a top plate (16) is passed through the through hole. A fixing ring (3) with a diagonal rod (4) connected to one side, an upper spring (11), a toggle plate (7), a lower spring (9) and a clamping plate (14) are sequentially sleeved on the top column (15) from top to bottom. A fixing column (10) with a bottom end fixedly connected to the table top is connected to the other side of the fixing ring (3). The fixing column (10) is sequentially mounted with a plurality of springs for fixing the fixing column (10) from top to bottom. A fixing plate (12) supporting the toggle plate (7) and a fixing seat (13) rotatably connected to one end of the clamping plate (14); a handle (5) is rotatably connected to the middle of the inclined rod (4) via a first hinge (6); a front end of the handle (5) is rotatably connected to the toggle plate (7) via a second hinge (8); a central hole of the clamping plate (14) is elliptical in shape, and a major axis of the central hole of the clamping plate (14) is greater than a diameter of a cross section of the top column (15); The first hinged member (6) and the second hinged member (8) are both bolts; The fixing column (10) is in an inverted L shape.

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