Special clamp safety device for steel plate

Abstract

The utility model discloses a special clamp safety device for a steel plate, relates to the technical field of safety of hoisting operation in the industry and trade industry, and solves the technical problem that the steel plate is easy to fall from a high place due to the absence of a fixed hook buckling point when the steel plate is hoisted by an existing crane. The device comprises a sawtooth supporting block and a sawtooth clamping block, the sawtooth supporting block is detachably connected with a hoisting part of the crane through a first mounting structure, the sawtooth clamping block is detachably connected with the sawtooth supporting block through a second mounting structure, a first interference part is arranged at the tail end of the sawtooth supporting block, and a second interference part is arranged on the inner side of the sawtooth clamping block. According to the utility model, safe hoisting of plates such as steel plates and the like is realized, the hoisting safety and the working efficiency are improved, and manpower is saved.

Description

Technical Field

[0001] This utility model relates to the technical field of lifting and hoisting operation safety in the industrial and commercial sectors, and more specifically, it relates to a special clamping safety device for steel plates. Background Technology

[0002] The "Ten Don'ts" for lifting operations include:

[0003] 1. Do not hoist if the command signals are unclear or incorrect: Ensure that the command signals are clear and accurate to avoid operational errors caused by unclear or incorrect signals.

[0004] 2. Do not lift overloaded equipment: Ensure that lifting operations do not exceed the rated load of the equipment to avoid equipment damage or safety accidents caused by overloading.

[0005] 3. Do not lift if the lifting ropes and accessories are not securely tied or do not meet the requirements: Ensure that the lifting ropes and accessories are secure and reliable, meet safety requirements, and avoid accidents during the lifting process.

[0006] 4. Do not lift if there are people or moving objects on the lifting device: Ensure that there are no people or moving objects on the lifting device to avoid personal injury or property loss.

[0007] 5. Do not hang or suspend equipment at an angle: Avoid equipment damage or safety accidents caused by incorrect suspension methods.

[0008] 6. Do not lift heavy objects directly onto the hook during processing: This ensures that no safety accidents will occur due to the movement or vibration of the load during processing.

[0009] 7. Do not lift objects with sharp edges or gaps without proper padding: Take appropriate protective measures for objects with sharp edges or gaps to avoid scratching ropes or other parts during lifting.

[0010] 8. Do not lift objects buried underground: Avoid digging up unknown underground objects to ensure operational safety.

[0011] 9. Do not lift explosive objects: Avoid handling flammable and explosive materials to reduce safety risks.

[0012] 10. Do not lift molten steel if it is too full and not secured with clamps: Ensure that special items such as molten steel are stable and safe during transportation to avoid spillage or tipping.

[0013] When lifting steel plates and other sheet materials, cranes mainly use wire ropes to hoist the plates. Hooks are usually installed in two mounting holes on the crane's lifting section, but there are no fixed hook fasteners. This method of hoisting violates the third rule of the "Ten Don'ts" for crane operations: "Do not hoist if the hoisting rope and accessories are not securely tied or do not meet the requirements." Furthermore, the wire ropes are tied to the edges of the steel plates, and frequent hoisting can easily cause wear and even breakage of the wire ropes, resulting in the steel plates falling from a height and posing a serious safety hazard to the crane operators and the lives of people in the surrounding area. Utility Model Content

[0014] The technical problem to be solved by this utility model is to provide a special clamping safety device for steel plates to address the shortcomings of the existing technology, thereby solving the technical problem that the lack of fixed hooks and fasteners when lifting steel plates by existing cranes can easily cause the steel plates to fall from a height.

[0015] The present invention discloses a special clamping safety device for steel plates, which includes a sawtooth support block and a sawtooth clamping block. The sawtooth support block is detachably connected to the hoisting part of a crane through a first mounting structure, and the sawtooth clamping block is detachably connected to the sawtooth support block through a second mounting structure. The end of the sawtooth support block is provided with a first interference part, and the inner side of the sawtooth clamping block is provided with a second interference part.

[0016] As a further improvement, the first mounting structure includes a first rotating shaft and a first nut. One end of the first rotating shaft is provided with a first limiting block, and the other end of the first rotating shaft is a threaded end. The sawtooth support block is provided with a first through hole. The first rotating shaft is sequentially inserted into the first through hole and the mounting hole of the crane's hoisting part, and the threaded end of the first rotating shaft penetrates and extends to the outside of the crane's hoisting part. The first nut is screwed onto the threaded end of the first rotating shaft.

[0017] Furthermore, the first rotating shaft is clearance-fitted with the first through hole and the mounting hole of the crane's hoisting part, respectively.

[0018] Furthermore, the second mounting structure includes a second rotating shaft, a washer, a sleeve, and an R-shaped pin. The serrated support block has a second through hole, the serrated clamping block has a mounting groove, and both sides of the mounting groove have third through holes. One end of the second rotating shaft has a second limiting block. The second rotating shaft passes through the second through hole and the third through hole in sequence. The end of the second rotating shaft away from the second limiting block has a pin hole, and the end of the second rotating shaft away from the second limiting block passes through and extends to the outside of the serrated clamping block. The R-shaped pin is inserted into the pin hole.

[0019] Furthermore, the second rotating shaft is clearance-fitted with the second through hole and the third through hole, respectively.

[0020] Furthermore, a gasket and a sleeve are sequentially fitted onto the end of the second rotating shaft away from the second limiting block. The sleeve has multiple notches, and the two ends of the R-shaped pin are located in two notches respectively, with the R-shaped pin contacting the bottom of the notch.

[0021] Furthermore, the sawtooth clamp has a U-shaped storage groove, with one end of the sawtooth support block extending into the U-shaped storage groove. The first interference part is located at the end of the sawtooth support block extending into the U-shaped storage groove, and the first interference part has an arc-shaped structure that protrudes outward from the middle. The first interference part is provided with a plurality of first sawtooths.

[0022] Furthermore, the second interference part is located on the side of the U-shaped storage groove away from the second limiting block, and the second interference part is inclined to the outside of the sawtooth clamping block, and the second interference part is provided with a plurality of second saw teeth.

[0023] Beneficial effects

[0024] The advantages of this utility model are:

[0025] 1. This utility model is equipped with a sawtooth support block and a sawtooth clamping block. By providing a first interference part on the sawtooth support block and a second interference part on the sawtooth clamping block, the steel plate is engaged and fixed by the first sawtooth on the first interference part and the second sawtooth on the second interference part, thereby realizing the safe hoisting of steel plates and other sheet materials, improving hoisting safety and work efficiency, and saving manpower.

[0026] 2. In this utility model, the sawtooth support block is detachably connected to the hoisting part of the crane through the first mounting structure, and the sawtooth clamp block is detachably connected to the sawtooth support block through the second mounting structure, thereby realizing the detachable connection of each component, improving the installation flexibility of each component, and enabling timely replacement of faulty components. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the safety device of this utility model;

[0028] Figure 2 This is a side view of the safety device of this utility model installed on a crane;

[0029] Figure 3 The diagrams show the force distribution of the safety device of this utility model when the steel plate is hoisted and when the steel plate is not hoisted.

[0030] Wherein: 1-serrated support block, 2-serrated clamping block, 3-first interference part, 4-second interference part, 5-first rotating shaft, 6-first nut, 7-first limiting block, 8-lifting part of crane, 9-second rotating shaft, 10-R-pin, 11-washer, 12-sleeve, 13-mounting groove, 14-second limiting block, 15-first through hole, 16-third through hole, 17-notch, 18-U-shaped storage groove. Detailed Implementation

[0031] The present invention will be further described below with reference to embodiments, but this does not constitute any limitation on the present invention. Any limited modifications made by any person within the scope of the claims of the present invention are still within the scope of the claims of the present invention.

[0032] See Figures 1-3 This utility model discloses a special clamping safety device for steel plates, comprising a serrated support block 1 and a serrated clamping block 2. The serrated support block 1 is detachably connected to the lifting part 8 of a crane via a first mounting structure, and the serrated clamping block 2 is detachably connected to the serrated support block 1 via a second mounting structure. A first interference part 3 is provided at the end of the serrated support block 1, and a second interference part 4 is provided on the inner side of the serrated clamping block 2. Both the first interference part 3 and the second interference part 4 are used to clamp and fix the steel plate, preventing the steel plate and other sheet materials from falling off.

[0033] The first mounting structure includes a first rotating shaft 5 and a first nut 6. One end of the first rotating shaft 5 is provided with a first limiting block 7, which limits the movement of the first rotating shaft 5. The other end of the first rotating shaft 5 is a threaded end. The sawtooth support block 1 has a first through hole 15. The first rotating shaft 5 passes through the first through hole 15 and the mounting hole of the crane's lifting part 8 in sequence, with the threaded end of the first rotating shaft 5 extending through and to the outside of the crane's lifting part 8. The first nut 6 is screwed onto the threaded end of the first rotating shaft 5. When the sawtooth support block 1 malfunctions, the first rotating shaft 5 can be disassembled by removing the first nut 6, thereby disassembling the sawtooth support block 1 from the crane's lifting part 8, enabling replacement of the faulty sawtooth support block 1 and improving the installation flexibility of the sawtooth support block 1.

[0034] The first rotating shaft 5 is clearance-fitted with the first through hole 15 and the mounting hole of the crane's hoisting part 8, respectively, so that the first rotating shaft 5 can rotate in the first through hole 15 and the mounting hole of the crane's hoisting part 8.

[0035] The second mounting structure includes a second rotating shaft 9, a gasket 11, a sleeve 12, and an R-pin 10. A second through hole is provided on the sawtooth support block 1, and a U-shaped storage groove 18 and a mounting groove 13 are provided on the sawtooth clamping block 2. Third through holes 16 are provided on both sides of the mounting groove 13. A second limiting block 14 is provided at one end of the second rotating shaft 9. The second rotating shaft 9 passes through the second through hole and the third through hole 16 in sequence. A pin hole is provided at the end of the second rotating shaft 9 away from the second limiting block 14, and the end of the second rotating shaft 9 away from the second limiting block 14 extends through and to the outside of the sawtooth clamping block 2. A gasket 11 and a sleeve 12 are sequentially fitted onto the end of the second rotating shaft 9 away from the second limiting block 14, and the R-pin 10 is inserted into the pin hole. When the sawtooth clamping block 2 malfunctions, the second rotating shaft 9 can be disassembled by pulling out the R-pin 10, allowing for the replacement of the faulty sawtooth clamping block 2 and improving the installation flexibility of the sawtooth clamping block 2.

[0036] The sleeve 12 has multiple notches 17, and the two ends of the R-shaped pin 10 are located in two notches 17 respectively, and the R-shaped pin 10 is in contact with the bottom of the notch 17. The R-shaped pin 10 limits the second rotating shaft 9.

[0037] The second rotating shaft 9 is clearance-fitted with the second through hole and the third through hole 16 respectively, so that the second rotating shaft 9 can rotate in the second through hole and the third through hole 16.

[0038] One end of the serrated support block 1 extends into the U-shaped storage groove 13. The first interference part 3 is provided at the end of the serrated support block 1 extending into the U-shaped storage groove 13. The first interference part 3 has an arc-shaped structure that protrudes outward from the middle. The arc-shaped structure makes the center of the first interference part 3 close to the second interference part 4. The first interference part 3 is provided with a number of first serrations.

[0039] The second interference part 4 is located on the side of the U-shaped storage groove 13 away from the second limiting block 14, and the second interference part 4 is inclined to the outside of the sawtooth clamping block 2. The inclined arrangement makes the center of gravity of the second interference part 4 closer to the first interference part 3, thereby clamping the steel plate located between the first interference part 3 and the second interference part 4. The second interference part 4 is provided with a plurality of second saw teeth. Both the first saw teeth and the second saw teeth are used for interlocking and fixing the steel plate.

[0040] The working principle of this utility model:

[0041] When steel plates need to be lifted, after confirming that the lifting section 8 of the crane is connected to the sawtooth support block 1, the steel plate is placed between the first interference section 3 and the second interference section 4 using a forklift or other tools. The crane is then started, and the lifting section 8 lifts the sawtooth support block 1. When the sawtooth support block 1 is lifted, it drives the sawtooth clamping block 2 and the steel plate in the sawtooth clamping block 2 to be lifted. During the process of slowly lifting the steel plate, the lifting section 8 of the crane drives the sawtooth support block 1 to move upward. When the sawtooth support block 1 moves upward, it drives the sawtooth clamping block 2 along... Figure 3 The clockwise rotation of the sawtooth clamp 2 causes the second interference part 4 to rotate, and the second interference part 4 moves closer to the first interference part 3, thereby achieving the purpose of biting and fixing the steel plate.

[0042] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present utility model. These modifications and improvements will not affect the effectiveness of the present utility model or the practicality of the patent.

Claims

1. A safety device for a special clamp on steel plates, characterized in that, It includes a sawtooth support block (1) and a sawtooth clamping block (2). The sawtooth support block (1) is detachably connected to the hoisting part (8) of the crane through a first mounting structure. The sawtooth clamping block (2) is detachably connected to the sawtooth support block (1) through a second mounting structure. The end of the sawtooth support block (1) is provided with a first interference part (3), and the inner side of the sawtooth clamping block (2) is provided with a second interference part (4).

2. The safety device for a special clamp on steel plates according to claim 1, characterized in that, The first mounting structure includes a first rotating shaft (5) and a first nut (6). One end of the first rotating shaft (5) is provided with a first limiting block (7), and the other end of the first rotating shaft (5) is a threaded end. The sawtooth support block (1) is provided with a first through hole (15). The first rotating shaft (5) is inserted into the first through hole (15) and the mounting hole of the hoisting part (8) of the crane in sequence. The threaded end of the first rotating shaft (5) passes through and extends to the outside of the hoisting part (8) of the crane. The first nut (6) is screwed onto the threaded end of the first rotating shaft (5).

3. The safety device for a steel plate clamp according to claim 2, characterized in that, The first rotating shaft (5) is clearance-fitted with the first through hole (15) and the mounting hole of the hoisting part (8) of the crane.

4. The safety device for a special clamp on steel plates according to claim 1, characterized in that, The second mounting structure includes a second rotating shaft (9) and an R-shaped pin (10). The sawtooth support block (1) has a second through hole, and the sawtooth clamping block (2) has a mounting groove (13). Both sides of the mounting groove (13) have third through holes (16). One end of the second rotating shaft (9) has a second limiting block (14). The second rotating shaft (9) passes through the second through hole and the third through hole (16) in sequence. The end of the second rotating shaft (9) away from the second limiting block (14) has a pin hole, and the end of the second rotating shaft (9) away from the second limiting block (14) passes through and extends to the outside of the sawtooth clamping block (2). The R-shaped pin (10) is inserted into the pin hole.

5. A safety device for a steel plate clamp according to claim 4, characterized in that, The second rotating shaft (9) is clearance-fitted with the second through hole and the third through hole (16) respectively.

6. A safety device for a steel plate clamp according to claim 4, characterized in that, The second rotating shaft (9) is fitted with a gasket (11) and a sleeve (12) at one end away from the second limiting block (14). The sleeve (12) has multiple notches (17). The two ends of the R-shaped pin (10) are located in two notches (17) respectively, and the R-shaped pin (10) is in contact with the bottom of the notch (17).

7. A safety device for a steel plate clamp according to claim 1, characterized in that, The sawtooth clamp (2) is provided with a U-shaped storage groove (18), one end of the sawtooth support block (1) extends into the U-shaped storage groove (18), the first interference part (3) is provided at the end of the sawtooth support block (1) extending into the U-shaped storage groove (18), and the first interference part (3) has an arc-shaped structure that protrudes outward from the middle, and the first interference part (3) is provided with a plurality of first sawtooths.

8. A safety device for a steel plate clamp according to claim 7, characterized in that, The second interference part (4) is located on the side of the U-shaped storage groove (18) away from the second limiting block (14), and the second interference part (4) is inclined to the outside of the sawtooth clamp (2), and the second interference part (4) is provided with a plurality of second sawtooths.

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