Tower crane jacking safety protection device

Abstract

The utility model relates to the field of tower crane jacking, and discloses a tower crane jacking safety protection device which comprises a fixing support, a lifting hook is arranged at the bottom in the fixing support, a protection support is installed in the middle of the outer surface of the fixing support, supporting pipes are welded to the positions, close to the four corners, of the bottom end of the protection support, and fixing grooves are formed in the supporting pipes; a movable supporting rod is movably mounted in the fixing groove and extends below the supporting pipe, a spring sleeves one side of the outer surface of the movable supporting rod in the fixing groove, and a movable plate is rotatably mounted at the bottom end of the movable supporting rod; the supporting pipe, the movable supporting rod, the movable plate and the supporting plate are used for protecting the outer surface of the tower body standard knot in the hoisting process, so that the effect of conveniently limiting and supporting the tower body standard knot in the hoisting process is achieved, the stability of the tower body standard knot in the hoisting process is improved, and the problem that the tower body standard knot shakes and rotates in the hoisting process is solved; and the mounting safety of the tower body standard section is improved.

Description

Technical Field

[0001] The present application relates to the field of tower crane lifting, and in particular to a tower crane lifting safety protection device. Background Art

[0002] A tower crane is a heavy lifting equipment used on construction sites, usually used for hoisting and transportation in high-rise construction projects. Tower crane jacking refers to the process of further raising the tower height or extending the tower crane arm after the tower crane has been installed and put into use. This operation is usually performed when the construction site requires the tower crane to cover a larger area or higher floors.

[0003] During the tower crane lifting process, the tower crane arm is set up to lift the standard sections of the tower body in sections. However, due to the large mass of the tower body standard sections, they are generally hung on the hooks of the tower crane arm through ropes during lifting. During the lifting process, the tower body standard sections will rotate during the lifting process, and the tower body standard sections will also shake with the movement of the crane arm, which will affect the stability of the tower body standard sections during lifting, and may cause the tower body standard sections to fall, reducing the safety of the tower crane lifting operation.

[0004] With respect to the above-mentioned related technologies, the inventor believes that when the tower crane is lifting the standard section of the tower body, there is a defect of shaking and rotating with the movement of the boom. Therefore, a tower crane lifting safety protection device is proposed to solve the above problem. Utility Model Content

[0005] In order to solve the problem of shaking and rotating caused by the movement of the boom when the tower crane is lifting and hoisting a standard section of the tower body, the present application provides a tower crane lifting safety protection device.

[0006] The tower crane lifting safety protection device provided in this application adopts the following technical solution:

[0007] A tower crane lifting safety protection device comprises a fixed bracket, a hook is provided at the bottom of the fixed bracket, a protection bracket is installed at the middle position of the outer surface of the fixed bracket, support tubes are welded to the bottom end of the protection bracket near the four corners, a fixing groove is opened inside the support tube, a movable support rod is movably installed inside the fixing groove extending to the bottom of the support tube, a spring is sleeved inside the fixing groove on one side of the outer surface of the movable support rod, a movable plate is rotatably installed at the bottom end of the movable support rod, support plates are installed on the edges of the upper surfaces of multiple movable plates, and a limiting mechanism is also provided on the outer surface of the fixed bracket for disassembling and fixing the protection bracket.

[0008] Preferably, the limiting mechanism includes a No. 1 fixing sleeve, which is symmetrically welded on both sides of the fixing bracket, and a No. 2 fixing sleeve is symmetrically fixed to one side of the inner wall of the protective bracket, and the No. 2 fixing sleeve is located between the two No. 1 fixing sleeves that are symmetrical in upper and lower directions, and limiting pins are inserted inside the No. 1 fixing sleeve and the No. 2 fixing sleeve.

[0009] Preferably, a threaded rod is fixedly installed on the top edge of the movable plate, and through holes are opened on the outer surface of the support plate near the four corners. One side of the outer surface of the threaded rod is located inside the through hole, and a fastening nut is threadedly connected to one side of the outer surface of the threaded rod, and the bottom end of the fastening nut is located on the upper surface of the support plate.

[0010] Preferably, a threaded hole is provided through the middle of the bottom end of the inner wall of the fixing groove, an external thread is provided on one side of the outer surface of the movable support rod, and the external thread on the outer surface of the movable support rod is matched with the threaded hole.

[0011] Preferably, a fixed baffle is welded on the upper surface of the movable support rod extending to the inside of the fixed groove, the outer diameter of the fixed baffle is larger than the inner diameter of the threaded hole, and the fixed baffle and the fixed groove are interlocked.

[0012] In summary, this application includes the following beneficial technical effects:

[0013] By hanging the standard section of the tower body on the hook, the limiting pin installs the protective bracket on the outer surface of the fixed bracket, and at the same time, the movable plate is rotated close to the bottom of the hook to fix the support plate on the upper surface of the movable plate, and the movable support rod is rotated to adjust the sliding length along the inside of the fixed groove, so that the support pipe, the movable support rod, the movable plate and the support plate are protected on the outer surface of the standard section of the tower body during lifting. Compared with the existing technology, this solution has the effect of facilitating the limited support of the standard section of the tower body during lifting, improving the stability of the standard section of the tower body during lifting, solving the problem of shaking and rotation of the standard section of the tower body during lifting, and improving the safety of the standard section of the tower body during installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the application;

[0015] Figure 2 is a schematic diagram of the bottom structure of the support plate in the application embodiment;

[0016] Figure 3 It is a schematic diagram of the structure of the protective bracket in the application embodiment;

[0017] Figure 4 It is a schematic diagram of the structure of the movable support rod in the embodiment of the application;

[0018] Figure 5 is a schematic diagram of the cross-sectional structure of the support tube in the application embodiment;

[0019] Explanation of the accompanying drawings: 1. Fixed bracket; 2. Hook; 3. Protective bracket; 4. Support tube; 5. Fixed groove; 6. Movable support rod; 7. Fixed baffle; 8. Spring; 9. Movable plate; 10. Threaded rod; 11. Support plate; 12. Fastening nut; 13. Fixed sleeve No. 1; 14. Fixed sleeve No. 2; 15. Limiting pin. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1-5 This application is described in further detail.

[0021] The present application embodiment discloses a tower crane jacking safety protection device. Figure 1-5 A tower crane lifting safety protection device comprises a fixed bracket 1, a hook 2 is arranged at the bottom of the fixed bracket 1, a protection bracket 3 is installed at the middle position of the outer surface of the fixed bracket 1, a support tube 4 is welded at the bottom end of the protection bracket 3 near the four corners, a fixing groove 5 is opened inside the support tube 4, a movable support rod 6 is movably installed inside the fixing groove 5 and extends to the bottom of the support tube 4, a spring 8 is sleeved on one side of the outer surface of the movable support rod 6 and located inside the fixing groove 5, a movable plate 9 is rotatably installed at the bottom end of the movable support rod 6, and support plates 11 are installed on the edges of the upper surfaces of multiple movable plates 9. A limiting mechanism is also provided on the outer surface of the fixed bracket 1 for disassembling and fixing the protection bracket 3.

[0022] By hanging the standard section of the tower body on the hook 2, installing the protective bracket 3 on the outer surface of the fixed bracket 1, the movable support rod 6 and the fixed baffle 7 drive the spring 8 to compress or expand, so that the spring 8 can buffer and support the movable support rod 6 when it is under pressure, and rotating the movable plate 9 to be close to the bottom of the hook 2, and installing the support plate 11 on the upper surface of the movable plate 9, so that the support pipe 4, the movable support rod 6, the movable plate 9 and the support plate 11 are protected on the outer surface of the standard section of the tower body during lifting, which reflects the stable placement effect of the standard section of the tower body above the support plate 11.

[0023] Reference Figure 1 and Figure 3 The limiting mechanism includes a No. 1 fixing sleeve 13, which is symmetrically welded on both sides of the fixing bracket 1. A No. 2 fixing sleeve 14 is symmetrically fixed to one side of the inner wall of the protective bracket 3. The No. 2 fixing sleeve 14 is located between the two No. 1 fixing sleeves 13 symmetrically in the upper and lower parts. A limiting pin 15 is inserted inside the No. 1 fixing sleeve 13 and the No. 2 fixing sleeve 14.

[0024] By sleeve-mounting the protective bracket 3 on the outer surface of the fixed bracket 1, the No. 2 fixed sleeve 14 is movably clamped between the two No. 1 fixed sleeves 13, and the limit pin 15 is inserted through the No. 1 fixed sleeve 13 and the No. 2 fixed sleeve 14, the protective bracket 3 is fixedly installed on the outer surface of the fixed bracket 1, which reflects the disassembly and assembly and fixing effect of the protective bracket 3 on the outer surface of the fixed bracket 1.

[0025] Reference Figure 2 and Figure 4 A threaded rod 10 is fixedly installed on the top edge of the movable plate 9, and through holes are opened on the outer surface of the support plate 11 near the four corners. One side of the outer surface of the threaded rod 10 is located inside the through hole, and a fastening nut 12 is threadedly connected to one side of the outer surface of the threaded rod 10, and the bottom end of the fastening nut 12 is located on the upper surface of the support plate 11.

[0026] By installing the support plate 11 on the upper surface of the movable plate 9, the corners of the support plate 11 are sleeved on the outer surface of the threaded rod 10, and the fastening nut 12 is rotated to fix the support plate 11 on the outer surface of the threaded rod 10, so that the support plate 11 is connected to multiple movable plates 9 and fixed to each other at the same time, reflecting the connection effect between the support plate 11 and multiple movable plates 9.

[0027] Reference Figure 5 A threaded hole is provided through the middle of the bottom end of the inner wall of the fixed groove 5, and an external thread is provided on one side of the outer surface of the movable support rod 6. The external thread on the outer surface of the movable support rod 6 is adapted to the threaded hole. A fixed baffle 7 is welded on the upper surface of the movable support rod 6 extending to the inside of the fixed groove 5. The outer diameter of the fixed baffle 7 is larger than the inner diameter of the threaded hole, and the fixed baffle 7 and the fixed groove 5 are interlocked with each other.

[0028] By rotating the movable support rod 6 to move along the inside of the support tube 4, the overall length of the support tube 4 and the movable support rod 6 can be adjusted to be suitable for standard sections of different sizes, and the fixed baffle plate 7 can limit and resist the movable support rod 6 to prevent the movable support rod 6 from sliding out of the support tube 4, reflecting the limiting effect of the fixed baffle plate 7 on the movable support rod 6.

[0029] The implementation principle of a tower crane jacking safety protection device in the embodiment of the present application is as follows: by hanging the tower body standard section on the hook 2, the protection bracket 3 is sleeved on the outer surface of the fixed bracket 1, so that the second fixing sleeve 14 is movably connected between the two first fixing sleeves 13, and the limit pin 15 is inserted through the first fixing sleeve 13 and the second fixing sleeve 14, and then the protection bracket 3 is fixedly installed on the outer surface of the fixed bracket 1, and at the same time, the movable support rod 6 is rotated to move along the inside of the support tube 4, and the overall length of the support tube 4 and the movable support rod 6 is adjusted to be suitable for standard sections of different sizes, and the movable support rod 6 and the fixed baffle 7 are driven by the spring 8 to be compressed or expanded, so that the spring 8 buffers the movable support rod 6 when it is compressed. Support, rotate the movable plate 9 close to the bottom of the hook 2, install the support plate 11 on the upper surface of the movable plate 9, so that the corners of the support plate 11 are sleeved on the outer surface of the threaded rod 10, rotate the fastening nut 12 to fix the support plate 11 on the outer surface of the threaded rod 10, so that the support plate 11 is connected to multiple movable plates 9 and fixed to each other at the same time, so that the support tube 4, the movable support rod 6, the movable plate 9 and the support plate 11 are protected on the outer surface of the standard section of the tower body during lifting; compared with the prior art, this scheme has the effect of facilitating the limited support of the standard section of the tower body during lifting, improves the stability of the standard section of the tower body during lifting, solves the problem of shaking and rotation of the standard section of the tower body during lifting, and improves the safety of the standard section of the tower body during installation.

[0030] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0031] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0032] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

[0033] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A tower crane lifting safety protection device, comprising a fixed bracket (1), wherein a hook (2) is arranged at the bottom of the fixed bracket (1), and characterized in that: A protective bracket (3) is installed at the middle position of the outer surface of the fixed bracket (1), and support tubes (4) are welded to the bottom end of the protective bracket (3) near the four corners. A fixing groove (5) is opened inside the support tube (4), and a movable support rod (6) is movably installed inside the fixing groove (5) and extends to the bottom of the support tube (4). A spring (8) is sleeved inside the fixing groove (5) on one side of the outer surface of the movable support rod (6), and a movable plate (9) is rotatably installed at the bottom end of the movable support rod (6). Support plates (11) are installed on the edges of the upper surfaces of the plurality of movable plates (9). A limiting mechanism is also provided on the outer surface of the fixed bracket (1) for disassembling and fixing the protective bracket (3).

2. A tower crane lifting safety protection device according to claim 1, characterized in that: The limiting mechanism comprises a No. 1 fixing sleeve (13), the No. 1 fixing sleeve (13) being symmetrically welded on both sides of the fixing bracket (1), a No. 2 fixing sleeve (14) being symmetrically fixedly connected to one side of the inner wall of the protection bracket (3), the No. 2 fixing sleeve (14) being located between two No. 1 fixing sleeves (13) symmetrically arranged in the upper and lower parts, and a limiting pin (15) being inserted into the interior of the No. 1 fixing sleeve (13) and the No. 2 fixing sleeve (14).

3. A tower crane lifting safety protection device according to claim 1, characterized in that: A threaded rod (10) is fixedly mounted on the top edge of the movable plate (9); through holes are formed on the outer surface of the support plate (11) near the four corners; one side of the outer surface of the threaded rod (10) is located inside the through hole; one side of the outer surface of the threaded rod (10) is threadedly connected to a fastening nut (12); the bottom end of the fastening nut (12) is located on the upper surface of the support plate (11).

4. A tower crane lifting safety protection device according to claim 1, characterized in that: A threaded hole is provided through the middle of the bottom end of the inner wall of the fixing groove (5), and an external thread is provided on one side of the outer surface of the movable support rod (6). The external thread on the outer surface of the movable support rod (6) is adapted to the threaded hole.

5. A tower crane jacking safety protection device according to claim 4, characterized in that: The upper surface of the movable support rod (6) extends to the inside of the fixed groove (5) and is welded with a fixed baffle (7); the outer diameter of the fixed baffle (7) is larger than the inner diameter of the threaded hole; the fixed baffle (7) and the fixed groove (5) are interlocked.

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