Anti-collision device for crane

Abstract

The utility model belongs to the technical field of crane equipment, and particularly relates to an anti-collision device for a crane, the anti-collision device comprises a fixed seat, a plurality of anti-collision plates are arranged on the outer side of the fixed seat, a protective net is arranged between every two adjacent anti-collision plates, a cavity is formed in the fixed seat, and buffer mechanisms are arranged between the anti-collision plates and the fixed seat; a piston cavity is formed in the anti-collision plate, a piston mechanism is arranged between the piston cavity and the fixing base, and an air bag mechanism is arranged on the inner side of the anti-collision plate. The device is reasonable in design, the purpose of buffering and protecting the fixing seat can be achieved by arranging the buffering mechanism, the hook can be prevented from swinging when being collided by arranging the piston mechanism and the air bag mechanism, the hook can be prevented from falling off due to long-term abrasion, and then the purpose of avoiding potential safety hazards can be achieved; and by arranging the storage mechanism, the hooks can be stored, and the purpose of protecting the hooks can be achieved.

Description

Technical Field

[0001] The present application relates to the technical field of crane equipment, and in particular to an anti-collision device for a crane. Background Art

[0002] A crane is a multi-action lifting machine that can lift and carry heavy objects vertically and horizontally within a certain range. It is also called an overhead crane, an overhead crane, or a crane. The main features of a tire crane are: its driving cab and the lifting control cab are combined into one, and it is evolved from a crawler crane (crawler crane). The crawler and traveling bracket parts of the traveling mechanism are transformed into a chassis with tires, which overcomes the disadvantage that the crawler plates of crawler cranes (crawler cranes) damage the road surface. It is a material handling machinery. A bridge crane is a lifting equipment that is horizontally mounted above workshops, warehouses, and material yards to lift materials. The bridge of a bridge crane runs longitudinally along the tracks laid on the elevated structures on both sides, and can make full use of the space under the bridge to lift materials without being hindered by ground equipment. It is the most widely used and most numerous type of lifting machinery.

[0003] At present, a crane anti-collision device is disclosed in a Chinese patent announcement with announcement number CN212174265U, and the key points of its technical solution are: it includes a crane hook and a closed-loop protective plate, the crane hook is located at the center of the closed-loop protective plate, and an elastic member is arranged between the closed-loop protective plate and the crane hook, and the elastic member is used to buffer the impact displacement of the closed-loop protective plate relative to the crane hook, which has the function of protecting the crane hook from multiple horizontal directions.

[0004] In actual use, it is found that the existing device cannot store the crane hook. When the crane hook is hit, it is easy to swing. Over time, it is easy to wear and fall off, posing a safety hazard. Therefore, we propose an anti-collision device for cranes to solve the above problems. Utility Model Content

[0005] The purpose of this application is to solve the shortcomings of the prior art: the existing device cannot store the crane hook, the crane hook is prone to swing when it is hit, and it is prone to wear and fall off over time, posing a safety hazard. An anti-collision device for a crane is proposed.

[0006] In order to achieve the above purpose, this application adopts the following technical solutions:

[0007] An anti-collision device for a crane comprises a fixed seat, a plurality of anti-collision plates are arranged on the outside of the fixed seat, a protective net is arranged between two adjacent anti-collision plates, a cavity is opened in the fixed seat, and a buffer mechanism is arranged between the anti-collision plate and the fixed seat; a piston cavity is opened in the anti-collision plate, a piston mechanism is arranged between the piston cavity and the fixed seat, an airbag mechanism is arranged on the inside of the anti-collision plate, a column hole is opened at the bottom of the fixed seat, the column hole is connected with the cavity, a reset mechanism is arranged in the cavity, a hook is arranged below the fixed seat, and a lifting rope is arranged on the top of the fixed seat.

[0008] Preferably, the buffer mechanism includes a telescopic rod and a buffer spring, a plurality of telescopic rods are arranged on the outside of the fixed seat, the other end of the telescopic rod is fixedly connected to the corresponding anti-collision plate, a buffer spring is sleeved on the telescopic rod, and both ends of the buffer spring are respectively fixedly connected to the fixed seat and the anti-collision plate.

[0009] Preferably, the piston mechanism includes a rod hole, a piston rod and a piston plate. A rod hole is opened on the inner side of the anti-collision plate, the rod hole is connected to the piston cavity, a piston rod is fixedly installed on the outer side of the fixed seat, the piston rod is located between adjacent telescopic rods, the other end of the piston rod extends into the piston cavity, the piston rod is slidably connected to the rod hole, a piston plate is fixedly installed on the other end of the piston rod, and the piston plate is slidably connected to the top inner wall and the bottom inner wall of the piston cavity.

[0010] Preferably, the airbag mechanism includes a vent pipe and an airbag, the vent pipe is arranged inside the anti-collision plate, the airbag is arranged inside the anti-collision plate, the airbag is located below the telescopic rod, the vent pipe is connected with the airbag and the piston cavity, and the airbag is adapted to the hook.

[0011] Preferably, the reset mechanism includes a support plate and a reset spring, the support plates are slidably installed on the inner walls on both sides of the cavity, the reset spring is fixedly installed on the top of the support plate, the top of the reset spring is fixedly connected to the inner wall of the top of the cavity, and a sliding mechanism is arranged between the support plate and the cavity.

[0012] Preferably, the sliding mechanism includes a slider and a slide groove, sliders are provided on both sides of the support plate, slide grooves are provided on the inner walls on both sides of the cavity, and the sliders are slidably connected to the corresponding slide grooves.

[0013] Preferably, a connecting column is fixedly installed at the bottom of the support plate, the connecting column is slidably connected to the column hole, and the bottom of the connecting column is fixedly connected to the top of the hook.

[0014] Beneficial effects of this application:

[0015] 1. Through the cooperation of the anti-collision plate, the telescopic rod and the buffer spring, the anti-collision plate can offset the external collision force, and the purpose of buffering and protecting the fixed seat can be achieved;

[0016] 2. Through the cooperation of the piston cavity, the piston plate and the piston rod, and through the cooperation of the vent pipe and the airbag, when the anti-collision plate 2 is hit by a collision, the air pressure in the piston cavity can be sent to the vent pipe through the piston plate, so as to inflate the airbag, squeeze and limit the hook through multiple airbags, and prevent the hook from swinging when it is hit by a collision, and prevent the hook from falling off due to long-term wear, thereby avoiding potential safety hazards;

[0017] 3. Through the cooperation of the reset spring, the support plate and the connecting column, when the hook is not in use, the reset spring can drive the support plate to move upward through the rebound force, and can drive the connecting column to move upward, so as to drive the hook to reset, store the hook, and protect the hook. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the three-dimensional structure of an anti-collision device for a crane proposed in this application;

[0019] Figure 2 This is a schematic diagram of a front cross-sectional structure of an anti-collision device for a crane proposed in this application;

[0020] Figure 3 This is a schematic structural diagram of part A of an anti-collision device for a crane proposed in this application.

[0021] In the figure: 1. fixing seat; 2. anti-collision plate; 3. cavity; 4. telescopic rod; 5. buffer spring; 6. piston cavity; 7. rod hole; 8. piston rod; 9. piston plate; 10. ventilation pipe; 11. air bag; 12. support plate; 13. connecting column; 14. reset spring; 15. slider; 16. slide groove; 17. hook; 18. lifting rope; 19. column hole; 20. protective net. DETAILED DESCRIPTION

[0022] The technical solution of the present application will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0023] Reference Figure 1-3An anti-collision device for a crane comprises a fixed seat 1, a plurality of anti-collision plates 2 are arranged outside the fixed seat 1, a protective net 20 is arranged between two adjacent anti-collision plates 2, a cavity 3 is opened in the fixed seat 1, and a buffer mechanism is arranged between the anti-collision plate 2 and the fixed seat 1; a piston cavity 6 is opened in the anti-collision plate 2, a piston mechanism is arranged between the piston cavity 6 and the fixed seat 1, an airbag mechanism is arranged inside the anti-collision plate 2, a column hole 19 is opened at the bottom of the fixed seat 1, the column hole 19 is connected with the cavity 3, a reset mechanism is arranged in the cavity 3, a hook 17 is arranged below the fixed seat 1, and a lifting rope 18 is arranged at the top of the fixed seat 1.

[0024] In this embodiment, the buffer mechanism includes a telescopic rod 4 and a buffer spring 5. A plurality of telescopic rods 4 are arranged on the outside of the fixed seat 1. The other end of the telescopic rod 4 is fixedly connected to the corresponding anti-collision plate 2. A buffer spring 5 is sleeved on the telescopic rod 4. The two ends of the buffer spring 5 are respectively fixedly connected to the fixed seat 1 and the anti-collision plate 2. By providing a buffer mechanism, the buffer spring 5 can offset the external collision force through the anti-collision plate 2, thereby achieving the purpose of buffering and protecting the fixed seat 1.

[0025] In this embodiment, the piston mechanism includes a rod hole 7, a piston rod 8 and a piston plate 9. A rod hole 7 is opened on the inner side of the anti-collision plate 2, and the rod hole 7 is connected to the piston cavity 6. A piston rod 8 is fixedly installed on the outer side of the fixed seat 1, and the piston rod 8 is located between adjacent telescopic rods 4. The other end of the piston rod 8 extends into the piston cavity 6, and the piston rod 8 is slidably connected to the rod hole 7. A piston plate 9 is fixedly installed on the other end of the piston rod 8, and the piston plate 9 is slidably connected to the top inner wall and the bottom inner wall of the piston cavity 6. By providing a piston mechanism, the air pressure in the piston cavity 6 can be pressed into the ventilation pipe 10 through the piston plate 9, so as to achieve the purpose of inflating the airbag 11.

[0026] In this embodiment, the airbag mechanism includes a ventilation tube 10 and an airbag 11. The ventilation tube 10 is arranged in the anti-collision plate 2, and the airbag 11 is arranged on the inner side of the anti-collision plate 2. The airbag 11 is located below the telescopic rod 4. The ventilation tube 10 is connected with the airbag 11 and the piston chamber 6. The airbag 11 is adapted to the hook 17. By providing the airbag mechanism, multiple airbags 11 can squeeze and limit the hook 17, thereby preventing the hook 17 from swaying when a collision occurs.

[0027] In this embodiment, the reset mechanism includes a support plate 12 and a reset spring 14. The support plates 12 are slidably installed on the inner walls on both sides of the cavity 3, and the reset spring 14 is fixedly installed on the top of the support plate 12. The top of the reset spring 14 is fixedly connected to the top inner wall of the cavity 3. A sliding mechanism is arranged between the support plate 12 and the cavity 3. By providing the reset mechanism, the reset spring 14 can drive the support plate 12 to move upward through the rebound force, thereby achieving the purpose of driving the connecting column 13 to move upward.

[0028] In this embodiment, the sliding mechanism includes a slider 15 and a slide groove 16. Sliders 15 are provided on both sides of the support plate 12, and slide grooves 16 are provided on the inner walls on both sides of the cavity 3. The slider 15 is slidably connected with the corresponding slide groove 16. By providing a sliding mechanism, the support plate 12 can move up and down more smoothly.

[0029] In this embodiment, a connecting column 13 is fixedly installed at the bottom of the support plate 12, and the connecting column 13 is slidably connected to the column hole 19. The bottom of the connecting column 13 is fixedly connected to the top of the hook 17. By providing the connecting column 13, the swing amplitude of the hook 17 can be reduced through the connecting column 13, so that the hook 17 can be more stable when moving.

[0030] In the present application, when the anti-collision plate 2 outside the crane hook 17 is hit, it can drive the telescopic rod 4 to contract, and can drive the buffer spring 5 to contract, so that the external collision force can be offset by the anti-collision plate 2, and the purpose of buffering and protecting the fixed seat 1 can be achieved. When the anti-collision plate 2 is hit, it can move toward the side close to the fixed seat 1, and can drive the piston chamber 6 to move toward the side close to the fixed seat 1, and can press the air pressure in the piston chamber 6 into the ventilation pipe 10 through the piston plate 9, so as to inflate the airbag 11, and can squeeze and limit the hook 17 through multiple airbags 11, so as to avoid the hook 17 from being hit. The hook 17 can be prevented from swinging due to long-term wear and tear and falling off, thereby avoiding potential safety hazards. When the hook 17 is used, the connecting column 13 can be driven downward by pulling the hook 17 downward, which can also drive the support plate 12 to move downward and drive the return spring 14 to stretch, so as to achieve the purpose of moving the hook 17 to the bottom of the anti-collision plate 2 for use. When the hook 17 is not in use, the return spring 14 can drive the support plate 12 to move upward through the rebound force, which can also drive the connecting column 13 to move upward, so as to drive the hook 17 to reset, so as to achieve the purpose of storing the hook 17 and protecting the hook 17.

[0031] The above descriptions are merely embodiments of the present application and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An anti-collision device for a crane, characterized in that: It comprises a fixing seat (1), a plurality of anti-collision plates (2) are arranged outside the fixing seat (1), a protective net (20) is arranged between two adjacent anti-collision plates (2), a cavity (3) is opened inside the fixing seat (1), and a buffer mechanism is arranged between the anti-collision plates (2) and the fixing seat (1); A piston cavity (6) is provided in the anti-collision plate (2), a piston mechanism is provided between the piston cavity (6) and the fixing seat (1), an airbag mechanism is provided inside the anti-collision plate (2), a column hole (19) is provided at the bottom of the fixing seat (1), the column hole (19) is communicated with the cavity (3), a reset mechanism is provided in the cavity (3), a hook (17) is provided below the fixing seat (1), and a suspension rope (18) is provided at the top of the fixing seat (1).

2. The anti-collision device for a crane according to claim 1, characterized in that: The buffer mechanism comprises a telescopic rod (4) and a buffer spring (5); a plurality of telescopic rods (4) are arranged outside the fixed seat (1); the other ends of the telescopic rods (4) are fixedly connected to corresponding anti-collision plates (2); the telescopic rods (4) are sleeved with a buffer spring (5); and the two ends of the buffer spring (5) are respectively fixedly connected to the fixed seat (1) and the anti-collision plate (2).

3. The anti-collision device for a crane according to claim 1, characterized in that: The piston mechanism comprises a rod hole (7), a piston rod (8) and a piston plate (9); the anti-collision plate (2) is provided with a rod hole (7) on the inner side thereof, the rod hole (7) being communicated with the piston cavity (6); a piston rod (8) is fixedly mounted on the outer side of the fixing seat (1); the piston rod (8) is located between adjacent telescopic rods (4); the other end of the piston rod (8) extends into the piston cavity (6); the piston rod (8) is slidably connected to the rod hole (7); the other end of the piston rod (8) is fixedly mounted with a piston plate (9); the piston plate (9) is slidably connected to the top inner wall and the bottom inner wall of the piston cavity (6).

4. The anti-collision device for a crane according to claim 1, characterized in that: The airbag mechanism comprises a vent pipe (10) and an airbag (11); the vent pipe (10) is arranged inside the anti-collision plate (2); the airbag (11) is arranged inside the anti-collision plate (2); the airbag (11) is located below the telescopic rod (4); the vent pipe (10) is connected to the airbag (11) and the piston chamber (6); and the airbag (11) is adapted to the hook (17).

5. The anti-collision device for a crane according to claim 1, characterized in that: The reset mechanism comprises a support plate (12) and a reset spring (14); the support plates (12) are slidably mounted on the inner walls of both sides of the cavity (3); the reset spring (14) is fixedly mounted on the top of the support plate (12); the top of the reset spring (14) is fixedly connected to the inner wall of the top of the cavity (3); and a sliding mechanism is provided between the support plate (12) and the cavity (3).

6. The anti-collision device for a crane according to claim 5, characterized in that: The sliding mechanism comprises a slider (15) and a slide groove (16); sliders (15) are provided on both sides of the support plate (12); slide grooves (16) are provided on the inner walls on both sides of the cavity (3); and the sliders (15) are slidably connected to the corresponding slide grooves (16).

7. The anti-collision device for a crane according to claim 5, characterized in that: A connecting column (13) is fixedly mounted on the bottom of the support plate (12); the connecting column (13) is slidably connected to the column hole (19); and the bottom of the connecting column (13) is fixedly connected to the top of the hook (17).

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