Anti-collision mechanism for tower crane

Abstract

The utility model relates to the field of tower cranes, and discloses an anti-collision mechanism for a tower crane, which comprises a tower crane body, a suspension arm is movably arranged at the top of the tower crane body, a lifting rope is movably mounted on one side of the suspension arm, a lifting hook is fixedly connected to the bottom end of the lifting rope, an upper bracket is mounted below the lifting hook, and a lower bracket is arranged below the upper bracket; contact alarms are installed in the middle of the bottom end of the upper support and the middle of the top end of the lower support, a plurality of fixed blocking frames are fixedly installed at one ends of the upper support and the lower support close to the outer surfaces of the contact alarms, and protective frames are movably installed at the positions, corresponding to the fixed blocking frames, of the outer surfaces of the upper support and the lower support. According to the building material hoisting device, the buffering baffles and the protection frames are movably arranged on the outer surfaces of the upper support and the lower support, so that the effect of conveniently protecting a building material in the hoisting process is achieved, the safety of the building material during hoisting is improved, and the problem that the building material collides with a building to cause damage during hoisting is solved; and the overall use efficiency of the tower crane body is improved.

Description

Technical Field

[0001] The present application relates to the field of tower cranes, and in particular to an anti-collision mechanism for tower cranes. Background Art

[0002] A tower crane is a large lifting machine used to lift and move heavy objects on construction sites. It is usually composed of a tower, a lifting arm, a lifting machine, an electric motor, a hydraulic mechanism, an electrical system and other components, and can perform lifting operations within a large radius. The characteristics of a tower crane include high lifting capacity, precise operating control, strong stability and the ability to adapt to various construction site environments.

[0003] Tower cranes are mainly used to hoist and transport large construction materials. They drive the construction materials to move within a certain range through the rotation of the suspension wall. However, the hoisted construction materials will be affected by wind, and the construction materials may have an unstable center of gravity, which may cause them to swing back and forth when close to the placement position. This may cause the construction materials to collide with the external environment, thereby causing damage to the hoisted construction materials, reducing the overall safety of the tower crane when in use, and also having a certain impact on the overall lifting efficiency of the construction materials.

[0004] With respect to the above-mentioned related technologies, the inventor believes that there is a defect that the building materials shake and collide with the external environment during the lifting construction of the tower crane. Therefore, an anti-collision mechanism for a tower crane is proposed to solve the above problem. Utility Model Content

[0005] In order to solve the problem of building materials shaking and colliding with the external environment during the hoisting construction of the tower crane, the present application provides an anti-collision mechanism for the tower crane.

[0006] The anti-collision mechanism for a tower crane provided in this application adopts the following technical solution:

[0007] The camming mechanism of claim 1, wherein the camming mechanism comprises a tower crane body, wherein a suspension arm is movably provided on the top of the tower crane body, a suspension rope is movably installed on one side edge of the suspension arm, the bottom end of the suspension rope is fixedly connected to a hook, an upper bracket is installed below the hook, a lower bracket is provided below the upper bracket, a contact alarm is installed in the middle of the bottom end of the upper bracket and the middle of the top end of the lower bracket, a plurality of fixed baffles are fixedly installed on one end of the upper bracket and the lower bracket near the outer surface of the contact alarm, a protective frame is movably installed at positions of the outer surfaces of the upper bracket and the lower bracket corresponding to the fixed baffles, movable support rods are welded to the inside of the fixed baffle at the upper and lower ends of one side of the protective frame, a contact block is installed on one end of the movable support rod through the fixed baffle, and a buffer mechanism is also provided on the outer surface of the protective frame for protecting the inside of the upper bracket and the lower bracket.

[0008] Preferably, the buffer mechanism includes a fixed rod, which is fixedly mounted on the upper and lower ends of the inner wall of the protective frame, and No. 2 springs are sleeved on the upper and lower ends of the outer surface of the fixed rod. A movable part is movably mounted on the outer surface of the fixed rod near the No. 2 spring, and a movable connecting rod is hinged on one side of the movable part, and a buffer baffle is rotatably mounted on one side edge of the movable connecting rod through a hinge support.

[0009] Preferably, a limiting plate is welded on one side of the outer surface of the movable support rod inside the fixed retaining frame, and a No. 1 spring is sleeved on the outer surface of the movable support rod close to the limiting plate.

[0010] Preferably, a fixing ring is fixedly installed in the middle of the top end of the upper bracket, the fixing ring is located on the outer surface of the hook, and the hook and the fixing ring are engaged with each other.

[0011] Preferably, a through hole is opened in the middle of one end of the movable part, the outer diameter of the fixing rod is smaller than the inner diameter of the through hole, the fixing rod and the through hole are interlocked with each other, one side edge of the movable part is located inside the protective frame, and the protective frame and the movable part are coupled with each other.

[0012] Preferably, a mounting part is fixedly installed on one side edge of the suspension arm, an infrared rangefinder is installed in the middle of the front and rear ends of the mounting part, an audible and visual alarm is also provided on the upper surface of the mounting part, and protective guard frames are welded on the front and rear ends of the mounting part near the outer surface of the infrared rangefinder.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] By fixing the building materials inside the upper bracket and the lower bracket, hanging the fixing ring on the hook and lifting the building materials to the placement place, multiple buffer baffles cooperate with the protective frame to protect the outer surface of the building materials. When the buffer baffles abut against the external collision object, the buffer baffles push the protective frame to move, and then the contact block moves to abut against the contact alarm to trigger the alarm, so that the suspension arm stops moving. Compared with the existing technology, this solution has the effect of facilitating the protection of the building materials being lifted, improving the safety of the building materials during lifting, solving the problem of damage caused by the collision of building materials with buildings during lifting, and improving the overall utilization efficiency of the tower crane body.

[0015] The buffer baffle is abutted against the external building to limit the upper bracket and the lower bracket from continuing to move, so that the buffer baffle is compressed to drive the movable connecting rod to rotate, and the movable connecting rod pushes the movable part to move along the outer surface of the fixed rod, so that the movable part pushes the No. 2 spring to be compressed, and the No. 2 spring buffers the movable part, thereby reducing the impact force generated when the buffer baffle is compressed, and then buffering the impact force of the building materials, thereby improving the overall protection effect of the upper bracket and the lower bracket.

[0016] The moving suspension arm is monitored by an infrared rangefinder. When the infrared rangefinder detects that the suspension arm is closer to the external environment than the safe distance, the sound and light alarm is controlled to trigger the alarm, and the staff in the cab are warned by lights and sharp explosions, so that the suspension arm can be controlled to stay away from the collision environment, thereby improving the overall safety of the tower crane body when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the application;

[0018] Figure 2 It is a schematic diagram of the structure of the upper bracket and the lower bracket in the embodiment of the application;

[0019] Figure 3 It is a schematic diagram of the structure of the protective frame in the application embodiment;

[0020] Figure 4 It is an application embodiment Figure 1 A is a schematic diagram of the partially enlarged structure of the middle part;

[0021] Explanation of the reference numerals: 1. tower crane body; 2. suspension arm; 3. lifting rope; 4. lifting hook; 5. upper bracket; 6. fixing ring; 7. lower bracket; 8. contact alarm; 9. fixed baffle; 10. protective frame; 11. movable support rod; 12. contact block; 13. limit plate; 14. spring No. 1; 15. fixed rod; 16. spring No. 2; 17. movable part; 18. movable connecting rod; 19. buffer baffle; 20. mounting part; 21. infrared rangefinder; 22. sound and light alarm; 23. protective baffle. DETAILED DESCRIPTION

[0022] The following is combined with Figure 1-4 This application is described in further detail.

[0023] The embodiment of the present application discloses an anti-collision mechanism for a tower crane. Figure 1-4A collision prevention mechanism for a tower crane comprises a tower crane body 1, a suspension arm 2 is movably provided on the top of the tower crane body 1, a suspension rope 3 is movably installed on one side of the suspension arm 2, a hook 4 is fixedly connected to the bottom end of the suspension rope 3, an upper bracket 5 is installed below the hook 4, a fixing ring 6 is fixedly installed at the middle of the top end of the upper bracket 5, the fixing ring 6 is located on the outer surface of the hook 4, the hook 4 and the fixing ring 6 are engaged with each other, a lower bracket 7 is arranged below the upper bracket 5, a contact alarm 8 is installed at the middle of the bottom end of the upper bracket 5 and the middle of the top end of the lower bracket 7, and one end of the upper bracket 5 and the lower bracket 7 is fixed near the outer surface of the contact alarm 8 A number of fixed baffles 9 are installed, and protective frames 10 are movably installed at the positions on the outer surfaces of the upper bracket 5 and the lower bracket 7 corresponding to the fixed baffles 9. The upper and lower ends of one side of the protective frame 10 are placed inside the fixed baffle 9 and are welded with movable support rods 11. One end of the movable support rod 11 passes through the fixed baffle 9 and is installed with a contact block 12. One side of the outer surface of the movable support rod 11 is located inside the fixed baffle 9 and is welded with a limiting plate 13. A No. 1 spring 14 is sleeved on the outer surface of the movable support rod 11 near the limiting plate 13. A buffer mechanism is also provided on the outer surface of the protective frame 10 for protecting the interior of the upper bracket 5 and the lower bracket 7.

[0024] By fixing the building materials inside the upper bracket 5 and the lower bracket 7, hanging the fixing ring 6 on the hook 4, the hook 4 cooperates with the lifting rope 3 to lift the building materials inside the upper bracket 5 and the lower bracket 7 to the placement place, so that multiple buffer baffles 19 cooperate with the protective frame 10 to protect the outer surface of the building materials. When the buffer baffle 19 abuts against the external collision object, the buffer baffle 19 pushes the protective frame 10 to move under the connection of the movable connecting rod 18, and the movable support rod 11 moves along the inside of the fixed baffle frame 9, and then the contact block 12 moves to abut against the contact alarm 8 to trigger the alarm, so that people react and control the suspension arm 2 to stop moving. At the same time, the movable support rod 11 drives the limit plate 13 to move along the inside of the fixed baffle frame 9, so that the No. 1 spring 14 buffers the movable limit plate 13, keeps the movable support rod 11 and the contact block 12 in a stable state during movement, and reflects the overall anti-collision effect of the building materials inside the upper bracket 5 and the lower bracket 7.

[0025] Reference Figure 2 and Figure 3 The buffer mechanism includes a fixed rod 15, which is fixedly mounted on the upper and lower ends of the inner wall of the protective frame 10. No. 2 springs 16 are sleeved on the upper and lower ends of the outer surface of the fixed rod 15. A movable part 17 is movably mounted on the outer surface of the fixed rod 15 near the No. 2 spring 16. A movable connecting rod 18 is hinged on one side of the movable part 17. A buffer baffle 19 is rotatably mounted on one side edge of the movable connecting rod 18 through a hinge support. A through hole is opened in the middle of one end of the movable part 17. The outer diameter of the fixed rod 15 is smaller than the inner diameter of the through hole. The fixed rod 15 and the through hole are fitted with each other. One side edge of the movable part 17 is located inside the protective frame 10, and the protective frame 10 and the movable part 17 are coupled to each other.

[0026] By making the buffer baffle 19 abut against the external building to limit the upper bracket 5 and the lower bracket 7 from continuing to move, the buffer baffle 19 is compressed to drive the movable connecting rod 18 to rotate, and the movable connecting rod 18 pushes the movable part 17 to move along the outer surface of the fixed rod 15, so that the movable part 17 pushes the No. 2 spring 16 to be compressed, and the No. 2 spring 16 buffers the movable part 17 during movement, thereby reducing the impact force generated when the buffer baffle 19 is compressed, and further buffering the impact force of the building materials, which reflects the overall protective effect of the buffer baffle 19 on the upper bracket 5 and the lower bracket 7.

[0027] Reference Figure 1 and Figure 4 A mounting portion 20 is fixedly mounted on one side edge of the suspension arm 2, and an infrared rangefinder 21 is mounted in the middle of both front and rear ends of the mounting portion 20. An audible and visual alarm 22 is also arranged on the upper surface of the mounting portion 20. The input ends of the power supplies of the infrared rangefinder 21 and the audible and visual alarm 22 are electrically connected to the output ends of the external power supply, and the on and off switches of the infrared rangefinder 21 and the audible and visual alarm 22 are electrically connected. Protective baffles 23 are welded on the outer surface of the infrared rangefinder 21 at both front and rear ends of the mounting portion 20 near the infrared rangefinder 21.

[0028] The two rotation directions of the suspension arm 2 are monitored by the infrared rangefinder 21. When the end of the rotating suspension arm 2 approaches the external environment, the infrared rangefinder 21 detects that the safety distance is exceeded and transmits a signal to the sound and light alarm 22, so that the sound and light alarm 22 generates light and a sharp explosion to warn the staff in the cab, and then changes the movement direction of the suspension arm 2 to avoid collision with the external environment, which reflects the anti-collision effect of the suspension arm 2 when in use.

[0029] The implementation principle of the anti-collision mechanism for a tower crane in the embodiment of the present application is as follows: by fixing the building materials inside the upper support 5 and the lower support 7, hanging the fixing ring 6 on the hook 4, so that the hook 4 cooperates with the lifting rope 3 to lift the building materials inside the upper support 5 and the lower support 7 to the placement place, and multiple buffer baffles 19 cooperate with the protective frame 10 to protect the outer surface of the building materials. When the buffer baffle 19 abuts against the external collision object, the buffer baffle 19 pushes the protective frame 10 to move under the connection of the movable connecting rod 18, and the movable support rod 11 moves along the inside of the fixed baffle frame 9, and then the contact block 12 moves to abut against the contact alarm 8 to trigger the alarm, so that people react and control the suspension arm 2 to stop moving, and at the same time, the movable support rod 11 drives the limit plate 13 to move along the inside of the fixed baffle frame 9, so that the No. 1 spring 14 buffers the moving limit plate 13, keeps the movable support rod 11 and the contact block 12 in a stable state during the activity, and makes the buffer baffle 19 abut against the external building to limit the upper support 5 and the lower support 7 The activity continues, so that the buffer baffle 19 is compressed and drives the movable link 18 to rotate, and the movable link 18 pushes the movable part 17 to move along the outer surface of the fixed rod 15, so that the movable part 17 pushes the No. 2 spring 16 to compress, and the No. 2 spring 16 buffers the movable part 17, thereby reducing the impact force generated when the buffer baffle 19 is compressed, and then buffers the impact force of the building materials, thereby improving the overall protection effect of the upper bracket 5 and the lower bracket 7, and the moving suspension arm 2 is monitored by the infrared rangefinder 21, and the sound and light alarm 22 is controlled to trigger the alarm, and the staff in the cab are warned by lights and sharp explosions, so as to control the suspension arm 2 away from the collision environment, thereby improving the overall safety of the tower crane body 1 when in use; compared with the prior art, this solution has the effect of facilitating the protection of the building materials being hoisted, improving the safety of the building materials when hoisting, solving the problem of damage caused by the collision of building materials with buildings during hoisting, and improving the overall use efficiency of the tower crane body 1.

[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. An anti-collision mechanism for a tower crane, comprising a tower crane body (1), a suspension arm (2) movably provided on the top of the tower crane body (1), a suspension rope (3) movably installed on one side of the suspension arm (2), a suspension rope (3) being fixedly connected to a hook (4) at the bottom end, characterized in that: An upper bracket (5) is installed below the hook (4), a lower bracket (7) is arranged below the upper bracket (5), a contact alarm (8) is installed in the middle of the bottom end of the upper bracket (5) and the middle of the top end of the lower bracket (7), a plurality of fixed baffles (9) are fixedly installed at one end of the upper bracket (5) and the lower bracket (7) near the outer surface of the contact alarm (8), a protective frame (10) is movably installed at the outer surface of the upper bracket (5) and the lower bracket (7) at the corresponding position of the fixed baffle (9), and movable support rods (11) are welded to the inside of the fixed baffle (9) at the upper and lower ends of one side of the protective frame (10), and a contact block (12) is installed at one end of the movable support rod (11) passing through the fixed baffle (9), and a buffer mechanism is also provided on the outer surface of the protective frame (10) for protecting the inside of the upper bracket (5) and the lower bracket (7).

2. The anti-collision mechanism for tower crane according to claim 1, characterized in that: The buffer mechanism comprises a fixed rod (15), the fixed rod (15) being fixedly mounted on the upper and lower ends of the inner wall of the protective frame (10), the upper and lower ends of the outer surface of the fixed rod (15) being sleeved with a second spring (16), a movable part (17) being movably mounted on the outer surface of the fixed rod (15) near the second spring (16), a movable connecting rod (18) being hinged on one side of the movable part (17), and a buffer baffle (19) being rotatably mounted on one side edge of the movable connecting rod (18) via a hinge support.

3. The anti-collision mechanism for tower crane according to claim 1, characterized in that: A limiting plate (13) is welded on one side of the outer surface of the movable support rod (11) and is located inside the fixed retaining frame (9). A first spring (14) is sleeved on the outer surface of the movable support rod (11) near the limiting plate (13).

4. The anti-collision mechanism for tower crane according to claim 1, characterized in that: A fixing ring (6) is fixedly mounted at the middle of the top end of the upper bracket (5); the fixing ring (6) is located on the outer surface of the hook (4); the hook (4) and the fixing ring (6) are engaged with each other.

5. The anti-collision mechanism for tower crane according to claim 2, characterized in that: A through hole is formed in the middle of one end of the movable member (17); the outer diameter of the fixing rod (15) is smaller than the inner diameter of the through hole; the fixing rod (15) and the through hole are interlocked; one side edge of the movable member (17) is located inside the protective frame (10); and the protective frame (10) and the movable member (17) are coupled to each other.

6. The anti-collision mechanism for tower crane according to claim 1, characterized in that: A mounting portion (20) is fixedly mounted on one side edge of the suspension arm (2), an infrared rangefinder (21) is mounted in the middle of both front and rear ends of the mounting portion (20), an audible and visual alarm (22) is also arranged on the upper surface of the mounting portion (20), and protective baffles (23) are welded to the outer surface of the front and rear ends of the mounting portion (20) near the infrared rangefinder (21).

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