Crane safety protection device

Abstract

The utility model provides a crane safety protection device, which relates to the field of cranes, including a mounting plate, a fixing frame is provided below the mounting plate, a plurality of buffer cylinders distributed in a circumference are hinged on the inner wall of the fixing frame, a plurality of buffer cylinders are slidably connected with slide bars inside, a fixing piece is provided inside the fixing frame, and the other ends of the plurality of slide bars are ball-connected with the fixing piece. The crane safety protection device is installed with a pressure sensor in cooperation with a card block, a notch, and a rope. When the hook lifts a heavy object exceeding the load, the pressure sensor can transmit a signal, so that the rope can drive the two card blocks away from each other. At this time, the plug block can be separated from the mounting frame, thereby achieving the purpose of unhooking, thereby improving the overall safety. By installing the buffer cylinder in cooperation with the slide bar, the swing force of the cable can be buffered, thereby reducing the shaking of the cable, so that the cable can gradually reduce the swing, thereby improving the overall installability.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, in particular to a safety protection device for cranes. Background Art

[0002] A crane refers to a multi-action lifting machinery that can vertically lift and horizontally transport heavy objects 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 room are combined into one, and it is evolved from a crawler crane (crawler crane). The crawler and traveling bracket parts of the walking mechanism are changed into a chassis with tires, overcoming the shortcoming of crawler crane (crawler crane) track plates causing damage to the road surface. It is a material handling machinery.

[0003] Cranes usually lift cargo by using cables and hooks. When lifting heavy objects or when wind resistance is large, the cables will swing, resulting in low installability. At the same time, common crane hooks lack protection when lifting heavy objects and when the cargo reaches the load, resulting in low overall installability. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a crane safety protection device, which solves the problems raised in the background technology.

[0005] Technical Solution

[0006] To achieve the above purpose, the utility model is implemented by the following technical solutions: a crane safety protection device, including a mounting plate, a fixing frame is provided below the mounting plate, a plurality of buffer cylinders distributed in a circumference are hingedly connected to the inner wall of the fixing frame, a plurality of buffer cylinders are slidably connected to the inside of each of the sliding rods, a fixing piece is provided inside the fixing frame, and the other ends of the plurality of sliding rods are ball-connected to the fixing piece;

[0007] An installation frame is provided below the fixed frame, and an insertion block is inserted into the bottom surface of the installation frame, and a hook is fixedly connected to the bottom surface of the insertion block. Two notches are provided on the outer surface of the insertion block, and two sliding grooves are provided on the inner wall of the installation frame. Blocks are slidably connected inside the two sliding grooves, and pressure sensors are installed on the upper surfaces of the two blocks. Ropes are fixedly connected to the ends of the two blocks away from each other.

[0008] Furthermore, a cable body is provided inside the mounting plate, and the cable body is located inside the fixing piece. A rubber sleeve is installed on the inner wall of the fixing piece, and the rubber sleeve is in contact with the cable body. The bottom end of the cable body is fixedly connected to the mounting frame. Installing the rubber sleeve can improve the protection of the cable body and reduce the friction of the cable body when it swings.

[0009] Furthermore, one end of each of the sliding rods that is away from each other is fixedly connected to a first spring, and the other ends of each of the first springs are fixedly connected to a buffer tube close to them. The installation of the first spring can assist in buffering the swinging force of the cable through the deformation force of the first spring, thereby improving the buffering of the swinging force of the cable body.

[0010] Furthermore, the outer surface of the fixed frame is hinged with a plurality of support arms distributed in a circumference, and the plurality of support arms are hinged to the bottom surface of the mounting plate. The mounting support arms can support the fixed frame so that the support frame can maintain a stable state.

[0011] Furthermore, the two sides of the two clamping blocks that are away from each other are fixedly connected to a second spring, and the other ends of the second springs are fixedly connected to the inner wall of the sliding groove close to them. Installing the second spring can push the clamping block to limit the insertion block through the deformation force of the second spring, so that the insertion block can be stably located in the installation frame.

[0012] Furthermore, a storage groove is provided on the front side of the installation frame, and two sliding grooves are connected to the storage groove. The inner wall of the storage groove is rotatably connected to a winding rod, and the two ropes are fixedly connected to the winding rod. The winding rod is installed to wind up the ropes, so that the ropes can drag the card block, thereby separating the card block from the plug block, thereby contacting the limit of the plug block to achieve the purpose of unhooking.

[0013] Furthermore, a motor is installed on the front of the installation frame, and the output end of the motor is fixedly connected to the winding rod. Two warning lights are installed on the front and back of the installation frame. The warning lights can warn surrounding staff before unhooking, giving surrounding staff time to stay away.

[0014] The beneficial effects of the utility model are:

[0015] 1. The crane safety protection device is installed with a pressure sensor in cooperation with a block, a notch and a rope. When the hook lifts a heavy object exceeding the load, the pressure sensor can transmit a signal so that the rope can drive the two blocks away from each other. At this time, the plug block can be separated from the installation frame, thereby achieving the purpose of unhooking, thereby improving the overall safety. By installing a buffer cylinder in cooperation with the slide rod, the swing force of the cable can be buffered, thereby reducing the shaking of the cable, so that the cable can gradually reduce the swing, thereby improving the overall installability.

[0016] 2. The crane safety protection device can improve the protection of the cable body by installing a rubber sleeve and reduce the friction of the cable body when it swings. The warning light can warn the surrounding staff before unhooking and give the surrounding staff time to stay away. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a cross-sectional view of the front view of the installation frame of the utility model;

[0018] Figure 2 For this utility model Figure 1 A schematic diagram of the structure at A;

[0019] Figure 3 For this utility model Figure 1 A schematic diagram of the structure at B;

[0020] Figure 4 This is a front view of the installation frame of the utility model.

[0021] Among them, 1. mounting plate; 2. fixing frame; 3. buffer cylinder; 4. sliding rod; 5. fixing piece; 6. mounting frame; 7. plug-in block; 8. hook; 9. notch; 10. sliding groove; 11. block; 12. pressure sensor; 13. rope; 14. cable body; 15. rubber sleeve; 16. first spring; 17. support arm; 18. second spring; 19. storage slot; 20. winding rod; 21. motor; 22. warning light. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 A crane safety protection device includes a mounting plate 1, a fixing frame 2 is provided below the mounting plate 1, a plurality of buffer cylinders 3 distributed in a circle are hinged on the inner wall of the fixing frame 2, a plurality of buffer cylinders 3 are slidably connected to the inside of each of the slide bars 4, a fixing member 5 is provided inside the fixing frame 2, and the other ends of each of the slide bars 4 are ball-jointed to the fixing member 5. By installing the buffer cylinder 3 and the slide bar 4 in cooperation, the swing force of the cable can be buffered, thereby reducing the shaking of the cable, so that the cable can gradually reduce the swing, thereby improving the overall installability.

[0024] A mounting frame 6 is provided below the fixed frame 2, and a plug-in block 7 is plugged into the bottom surface of the mounting frame 6, and a hook 8 is fixedly connected to the bottom surface of the plug-in block 7. Two notches 9 are provided on the outer surface of the plug-in block 7, and two sliding grooves 10 are provided on the inner wall of the mounting frame 6. Blocks 11 are slidably connected to the inside of the two sliding grooves 10, and pressure sensors 12 are installed on the upper surfaces of the two blocks 11. Ropes 13 are fixedly connected to the ends of the two blocks 11 that are away from each other. When the pressure sensor 12 is installed in cooperation with the block 11, the notch 9 and the rope 13, when the hook 8 lifts a heavy object exceeding the load, the pressure sensor 12 can transmit a signal so that the rope 13 can drive the two blocks 11 away from each other. At this time, the block 7 can be separated from the mounting frame 6, thereby achieving the purpose of unhooking, thereby improving the overall safety.

[0025] A cable body 14 is provided inside the mounting plate 1, and the cable body 14 is located inside the fixing member 5. A rubber sleeve 15 is installed on the inner wall of the fixing member 5, and the rubber sleeve 15 contacts the cable body 14. The bottom end of the cable body 14 is fixedly connected to the mounting frame 6. Installing the rubber sleeve 15 can improve the protection of the cable body 14 and reduce the friction of the cable body 14 when it swings. The ends of the multiple sliding rods 4 that are away from each other are fixedly connected with the first spring 16, and the other ends of the multiple first springs 16 are fixedly connected to the buffer tube 3 close to them. Installing the first spring 16 can assist in buffering the swinging force of the cable through the deformation force of the first spring 16, thereby improving the buffering of the swinging force of the cable body 14. The outer surface of the fixing frame 2 is hinged with a plurality of support arms 17 distributed in a circle, and the plurality of support arms 17 are hinged to the bottom surface of the mounting plate 1. Installing the support arms 17 can support the fixing frame 2 so that the support frame can maintain a stable state.

[0026] The two clamping blocks 11 are fixedly connected to the side faces away from each other with the second spring 18, and the other ends of the second springs 18 are fixedly connected to the inner wall of the sliding groove 10 close to them. The installation of the second spring 18 can push the clamping block 11 to limit the insertion block 7 through the deformation force of the second spring 18, so that the insertion block 7 can be stably located in the installation frame 6. A storage groove 19 is provided on the front side of the installation frame 6, and the two sliding grooves 10 are connected to the storage groove 19. The inner wall of the storage groove 19 is rotatably connected to the winding rod 20, and the two ropes 13 are connected to the winding rod 20 is fixedly connected, and the winding rod 20 is installed to be able to wind up the rope 13, so that the rope 13 can drag the block 11, so that the block 11 is separated from the plug block 7, thereby contacting the limit of the plug block 7 to achieve the purpose of unhooking. A motor 21 is installed on the front of the installation frame 6, and the output end of the motor 21 is fixedly connected to the winding rod 20. Two warning lights 22 are installed on the front and back of the installation frame 6. The warning lights 22 can warn surrounding staff before unhooking, giving surrounding staff time to stay away.

[0027] During use, first, when the hook 8 is used to lift a heavy object, the cable body 14 will swing. When the cable body 14 swings, it can drive the slide bar 4 to slide in the buffer tube 3, so that the slide bar 4 can squeeze the air in the buffer tube 3, thereby buffering the swinging force of the cable body 14, thereby reducing the shaking of the cable, so that the cable can gradually reduce the swing, thereby improving the overall installability. When the lifted cargo exceeds the load, the pressure sensor 12 transmits a signal. At this time, the warning light 22 can flash to warn the surrounding staff to stay away. Then the motor 21 can drive the winding rod 20 to rotate, so that the winding rod 20 can reel in the rope 13, so that the two blocks 11 can move away from each other. At this time, the limit of the plug block 7 is contacted, and the plug block 7 will be separated from the mounting frame 6 under the action of gravity, thereby achieving the purpose of unhooking, thereby improving the overall safety.

[0028] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A crane safety protection device, comprising a mounting plate (1), characterized in that: A fixing frame (2) is provided below the mounting plate (1); a plurality of buffer cylinders (3) distributed in a circumferential manner are hingedly connected to the inner wall of the fixing frame (2); a sliding rod (4) is slidably connected to the interior of the plurality of buffer cylinders (3); a fixing member (5) is provided inside the fixing frame (2); and the other ends of the plurality of sliding rods (4) are ball-jointed to the fixing member (5); A mounting frame (6) is provided below the fixed frame (2), a plug block (7) is plugged into the bottom surface of the mounting frame (6), a hook (8) is fixedly connected to the bottom surface of the plug block (7), two notches (9) are provided on the outer surface of the plug block (7), two sliding grooves (10) are provided on the inner wall of the mounting frame (6), a clamping block (11) is slidably connected inside the two sliding grooves (10), a pressure sensor (12) is installed on the upper surface of the two clamping blocks (11), and a rope (13) is fixedly connected to the ends of the two clamping blocks (11) away from each other.

2. A crane safety protection device according to claim 1, characterized in that: A cable body (14) is provided inside the mounting plate (1), the cable body (14) is located inside the fixing member (5), a rubber sleeve (15) is installed on the inner wall of the fixing member (5), the rubber sleeve (15) is in contact with the cable body (14), and the bottom end of the cable body (14) is fixedly connected to the mounting frame (6).

3. A crane safety protection device according to claim 1, characterized in that: One end of each of the plurality of sliding rods (4) that is away from each other is fixedly connected to a first spring (16), and the other ends of each of the plurality of first springs (16) are fixedly connected to a buffer cylinder (3) that is close thereto.

4. A crane safety protection device according to claim 1, characterized in that: The outer surface of the fixing frame (2) is hinged with a plurality of support arms (17) distributed in a circumference, and the plurality of support arms (17) are all hinged to the bottom surface of the mounting plate (1).

5. A crane safety protection device according to claim 1, characterized in that: The side surfaces of the two clamping blocks (11) that are away from each other are fixedly connected to a second spring (18), and the other ends of the second springs (18) are fixedly connected to the inner wall of the sliding groove (10) adjacent thereto.

6. A crane safety protection device according to claim 1, characterized in that: The front side of the installation frame (6) is provided with a receiving groove (19), the two sliding grooves (10) are both in communication with the receiving groove (19), the inner wall of the receiving groove (19) is rotatably connected to a winding rod (20), and the two ropes (13) are both fixedly connected to the winding rod (20).

7. A crane safety protection device according to claim 1, characterized in that: A motor (21) is installed on the front of the installation frame (6), the output end of the motor (21) is fixedly connected to the reeling rod (20), and two warning lights (22) are installed on the front and back of the installation frame (6).

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