A hook swing limiting device of a bridge crane

Abstract

The utility model discloses a kind of hook swing limiting devices of bridge crane, including bridge support frame and be used to limit the swing limiting mechanism of hook swing, the bottom both sides of the bridge support frame are provided with lifting chain, the bottom of two lifting chains is fixedly connected with connecting block, the swing limiting mechanism is provided at the side of connecting block, the bottom of connecting block is welded with hook body, the surface of hook body is provided with protective buffer mechanism, the swing limiting mechanism includes, limiting plate, the limiting plate is arranged at the side of connecting block, receiver, the receiver is fixedly connected at the top side edge of limiting plate, cylinder;The utility model simple structure, reasonable in design, avoid driving goods swing when lifting goods, reduce the risk when lifting goods, protective buffer mechanism includes silica gel hook cover, multiple telescopic rods, multiple springs and two rubber pads, avoid staff being injured, improve safety.

Description

Technical Field

[0001] This utility model relates to the field of bridge crane technology, specifically to a hook suspension limiting device for a bridge crane. Background Technology

[0002] Bridge cranes are lifting equipment that spans across workshops, warehouses, and material yards for material handling. Because their ends rest on tall concrete pillars or metal supports, they resemble bridges. The bridge frame of a bridge crane runs longitudinally along rails laid on elevated structures on both sides, making full use of the space beneath the bridge frame for material handling without being obstructed by ground equipment. They are the most widely used and numerous type of lifting machinery.

[0003] The shortcomings of existing technology: Currently, in most bridge cranes, the hook is movably connected to the boom, which is connected to the lifting rope via pulleys. However, the hook is prone to swinging during lifting due to its movable connection to the boom, causing the hook to swing the cargo when lifting it, thus increasing the danger of lifting cargo. Utility Model Content

[0004] The purpose of this utility model is to provide a hook suspension limiting device for a bridge crane to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hook suspension limiting device for a bridge crane, comprising a bridge support frame and a suspension limiting mechanism for limiting the suspension of the hook. Both sides of the bottom of the bridge support frame are provided with lifting chains, and the bottoms of the two lifting chains are fixedly connected to connecting blocks. A suspension limiting mechanism is provided on one side of each connecting block. A hook body is welded to the bottom of the connecting block, and a protective buffer mechanism is provided on the surface of the hook body. The suspension limiting mechanism includes: A limiting plate is disposed on one side of the connecting block; A receiver, which is fixedly connected to the top edge of the limiting plate; A cylinder, which passes through the middle of the limiting plate, is used to limit the hook body and prevent it from swinging. A laser sensor, which is fixedly connected to one side of the cylinder; An electric slide rail is slidably connected to the back of the cylinder and is used to adjust the position of the cylinder to facilitate the limiting of the hook body.

[0006] Preferably, the protective buffer mechanism includes: A silicone hook sleeve, which is bonded to the surface of the hook body for the purpose of protecting the hook body; Multiple telescopic rods are fixedly connected to both sides of the silicone hook sleeve; Multiple springs, each of which is respectively sleeved on the surface of a multiple telescopic rod; Two rubber pads are provided on the side of the multiple telescopic rods away from the central axis of the hook body to buffer the impact force.

[0007] Preferably, a rectangular block is fixedly connected to the front of the connecting block, and a plug rod is inserted into the interior of the rectangular block.

[0008] Preferably, a rotating shaft is fixedly connected to the front of the insertion rod, and a connector is rotatably connected to the front of the rotating shaft for adjusting the angle of the lighting lamp.

[0009] Preferably, a placement groove is provided on one side of the lighting lamp, and a limit cover is engaged inside the placement groove.

[0010] Preferably, a battery is provided on one edge of the top surface of the bridge support frame, and mounting blocks are fixedly connected to both ends of the battery.

[0011] Preferably, both mounting blocks are internally threaded with bolts, and the bottom of both bolts is threaded with threaded holes, which facilitates disassembly and maintenance of the battery.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. A hook suspension limiting device for a bridge crane, the suspension limiting mechanism includes a limiting plate, a receiver, a cylinder, a laser sensor and an electric slide rail. After the bridge support frame drives the hook body to move to the designated position, the electric slide rail is activated to drive the cylinder and laser sensor to move in parallel until the laser sensor is located on the top surface of the receiver. At this time, the laser sensor transmits a signal to the control panel. The control panel activates the cylinder to move downward through the limiting plate, thereby limiting the suspension of the hook body and preventing the goods from swinging when lifting them, thus reducing the danger when lifting goods. 2. The hook suspension limiting device of this bridge crane includes a protective buffer mechanism comprising a silicone hook sleeve, multiple telescopic rods, multiple springs, and two rubber pads. The reverse compression force of the multiple springs ensures that a certain distance or pressure is maintained between the hook body and its protective layer, so that when the hook body swings and collides, it will not directly cause injury to the workers. When the hook body swings and comes into contact with workers or other objects, the two rubber pads absorb and disperse part of the impact force through their elastic deformation, further reducing the force transmitted to the workers. The combination of the two can effectively mitigate the impact on the surrounding environment and personnel when the hook body is unstable or moves, preventing workers from being injured and improving safety. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a front perspective view of the suspension limiting mechanism of this utility model; Figure 3 This is a front perspective view of the silicone hook sleeve of this utility model; Figure 4 This is a front perspective view of the lighting lamp of this utility model.

[0014] In the diagram: 1. Bridge support frame; 2. Hanging chain; 3. Connecting block; 4. Suspension limiting mechanism; 401. Limiting plate; 402. Receiver; 403. Cylinder; 404. Laser sensor; 405. Electric slide rail; 5. Hook body; 6. Protective buffer mechanism; 601. Silicone hook sleeve; 602. Telescopic rod; 603. Spring; 604. Rubber pad; 7. Rectangular block; 8. Insert rod; 9. Rotating shaft; 10. Connector; 11. Lighting lamp; 12. Limiting cover; 13. Battery; 14. Mounting block; 15. Bolt; 16. Threaded hole. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0017] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integrated connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0018] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" means two or more, unless otherwise explicitly specified.

[0019] Example 1 Please see Figure 1-4 As shown, the present invention provides a technical solution for a hook suspension limiting device for a bridge crane: It includes a bridge support frame 1 and a suspension limiting mechanism 4 for limiting the suspension of the hook. Both sides of the bottom of the bridge support frame 1 are provided with lifting chains 2. Connecting blocks 3 are fixedly connected to the bottom of the two lifting chains 2. The suspension limiting mechanism 4 is provided on one side of the connecting block 3. A hook body 5 is welded to the bottom of the connecting block 3. A protective buffer mechanism 6 is provided on the surface of the hook body 5. The suspension limiting mechanism 4 includes a limiting plate 401, which is located on one side of the connecting block 3; a receiver 402, which is fixedly connected to the top edge of the limiting plate 401; and a cylinder 403, which passes through the middle of the limiting plate 401 to limit the hook body 5 and prevent suspension. The system includes a swing arm, a laser sensor 404, which is fixedly connected to one side of the cylinder 403, and an electric slide rail 405, which is slidably connected to the back of the cylinder 403. The electric slide rail 405 is used to adjust the position of the cylinder 403 to facilitate the limiting of the hook body 5. After the bridge support frame 1 drives the hook body 5 to move to the designated position, the electric slide rail 405 is activated to drive the cylinder 403 and the laser sensor 404 to move in parallel until the laser sensor 404 is located on the top surface of the receiver 402. At this time, the laser sensor 404 receives a signal and transmits the signal to the control panel. The control panel then activates the cylinder 403 to move downward through the limiting plate 401, thereby limiting the swing of the hook body 5 and preventing the goods from swinging when lifting them, thus reducing the danger of lifting goods.

[0020] The protective buffer mechanism 6 includes a silicone hook sleeve 601, which is adhered to the surface of the hook body 5 for protection; multiple telescopic rods 602, which are fixedly connected to both sides of the silicone hook sleeve 601; multiple springs 603, which are respectively sleeved on the surface of the telescopic rods 602; and two rubber pads 604, which are located on the side of the telescopic rods 602 away from the central axis of the hook body 5 to buffer the impact force. The reverse compression force provided by the multiple springs 603 can ensure that the hook body 5 and its protective layer maintain a certain distance or pressure, so that when the hook body 5 shakes, it will not directly cause injury to the workers in the event of a collision. When the hook body 5 shakes and comes into contact with workers or other objects, the two rubber pads 604 absorb and disperse part of the impact force through their elastic deformation, further reducing the force transmitted to the workers. The combination of the two can effectively reduce the impact on the surrounding environment and personnel when the hook body 5 is unstable or moves, avoid workers being injured, and improve safety.

[0021] A rectangular block 7 is fixedly connected to the front of the connecting block 3. A plug rod 8 is inserted into the inside of the rectangular block 7. By inserting the plug rod 8 into the rectangular block 7, the lighting lamp 11 can be fixed to the front of the connecting block 3. The lighting lamp 11 can be selectively installed and removed according to the brightness of the site environment.

[0022] A rotating shaft 9 is fixedly connected to the front of the plug 8. A connecting piece 10 is rotatably connected to the front of the rotating shaft 9 for adjusting the angle of the lighting lamp 11. Under the action of the rotating shaft 9 and the connecting piece 10, the lighting lamp 11 is rotated until it is rotated to a suitable position, which facilitates lighting the designated position for work and improves convenience.

[0023] A placement slot is provided on one side of the lighting lamp 11. A limiting cover 12 is engaged inside the placement slot. When the battery is placed in the placement slot, the limiting cover 12 is engaged on the placement slot to limit the battery position, making it convenient to replace the battery and continue to provide lighting for the lighting lamp 11.

[0024] A battery 13 is provided on one edge of the top surface of the bridge support frame 1. Both ends of the battery 13 are fixedly connected to mounting blocks 14 to facilitate continuous power supply to the receiver 402 and the laser sensor 404.

[0025] Both mounting blocks 14 have internal threaded connections to bolts 15, and both bolts 15 have threaded connections to threaded holes 16 at their bottoms. The two mounting blocks 14 use the two bolts 15 to clamp the battery 13 to one edge of the top surface of the bridge support frame 1, which facilitates the disassembly, assembly, and maintenance of the battery 13.

[0026] The reverse compressive force provided by multiple springs 603 in this device ensures that a certain distance or pressure is maintained between the hook body 5 and its covering layer. This prevents direct injury to workers when the hook body 5 sways and collides with them. When the hook body 5 sways and comes into contact with workers or other objects, the two rubber pads 604 absorb and disperse part of the impact force through their elastic deformation, further reducing the force transmitted to workers. The combination of these two measures effectively mitigates the impact on the surrounding environment and personnel when the hook body 5 is unstable or moving, preventing workers from being injured and improving safety. After the bridge support frame 1 drives the hook body 5 to move to the designated position, the electric slide rail 405 drives the cylinder 403 and the laser sensor 404 to move in parallel until the laser sensor 404 is located on the top surface of the receiver 402. At this time, the laser sensor 404 receives a signal and transmits the signal to the control panel. The control panel then drives the cylinder 403 to move downward through the limit plate 401, thereby limiting the swing of the hook body 5 and preventing the goods from swinging when lifting them, thus reducing the danger of lifting goods.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A hook suspension limiting device for a bridge crane, comprising a bridge support frame (1) and a suspension limiting mechanism (4) for limiting the suspension of the hook, characterized in that: The bridge support frame (1) is provided with hanging chains (2) on both sides of its bottom. The bottom of the two hanging chains (2) is fixedly connected to a connecting block (3). A swing limiting mechanism (4) is provided on one side of the connecting block (3). A hook body (5) is welded to the bottom of the connecting block (3). A protective buffer mechanism (6) is provided on the surface of the hook body (5). The swing limiting mechanism (4) includes: A limiting plate (401) is provided on one side of the connecting block (3); Receiver (402), which is fixedly connected to the top edge of the limiting plate (401); Cylinder (403), which passes through the middle of the limiting plate (401) to limit the hook body (5) and prevent it from swinging; A laser sensor (404) is fixedly connected to one side of the cylinder (403); An electric slide rail (405) is slidably connected to the back of a cylinder (403) and is used to adjust the position of the cylinder (403) to facilitate the limiting of the hook body (5).

2. The hook suspension limiting device for a bridge crane according to claim 1, characterized in that: The protective buffer mechanism (6) includes: Silicone hook sleeve (601), the silicone hook sleeve (601) is bonded to the surface of the hook body (5) for protection of the hook body (5); Multiple telescopic rods (602) are fixedly connected to both sides of the silicone hook sleeve (601); Multiple springs (603) are respectively sleeved on the surface of multiple telescopic rods (602); Two rubber pads (604) are provided on the side of the multiple telescopic rods (602) away from the central axis of the hook body (5) to buffer the impact force.

3. The hook suspension limiting device for a bridge crane according to claim 1, characterized in that: A rectangular block (7) is fixedly connected to the front of the connecting block (3), and a plug rod (8) is inserted into the inside of the rectangular block (7).

4. The hook suspension limiting device for a bridge crane according to claim 3, characterized in that: The front of the plug (8) is fixedly connected to a rotating shaft (9), and the front of the rotating shaft (9) is rotatably connected to a connector (10) for adjusting the angle of the lighting lamp (11).

5. The hook suspension limiting device for a bridge crane according to claim 4, characterized in that: The lighting lamp (11) has a placement slot on one side, and a limit cover (12) is engaged inside the placement slot.

6. The hook suspension limiting device for a bridge crane according to claim 1, characterized in that: A battery (13) is provided on one side edge of the top surface of the bridge support frame (1), and mounting blocks (14) are fixedly connected to both ends of the battery (13).

Images