Lifting hook device for crane
By designing the structure of bearing plates, placing grooves, baffles and limit plates in the crane hook device, the problem that traditional hook devices are prone to cause steel pipes to fall off when lifting steel pipes is achieved, and the effect of improving the safety of hook devices is achieved.
Patent Information
- Application Number
- CN202510017811.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-06
- Publication Date
- 2025-03-18
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
When lifting steel pipes, traditional hook devices are open to lift the hook, which can easily cause the steel pipe to fall off when it shakes, causing safety accidents.
A hook device for cranes is designed, using a structure of a bearing plate and a placement groove. Through the cooperation of the baffle plate and the limit plate, a closed placement groove is formed to reduce the risk of steel pipe decoupling.
It effectively reduces the risk of steel pipe decoupling during lifting and improves the safety and stability of the hook device.
Smart Images
Figure CN119637699A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of crane hooks, and in particular to a hook device for a crane. Background Art
[0002] With the vigorous development of modern industry and logistics, cranes play a vital role in many fields. The efficiency and safety of their lifting operations are directly related to the smooth progress of the entire engineering process and the safety of personnel and equipment. The hook device is a key component of the crane that directly contacts the lifting weight and bears the main load. Its performance has a decisive impact on the overall working efficiency of the crane.
[0003] In the prior art, when a traditional hook device is lifting a steel pipe, the hook opening is in an open state. Therefore, during the lifting process, if the hook is subjected to external force and shakes strongly, the steel pipe is very likely to accidentally fall off the hook, thereby causing a serious safety accident and causing loss of life and property. Summary of the invention
[0004] In order to reduce the possibility of a steel pipe falling during lifting, thereby improving the safety of the hook device, the present application provides a hook device for a crane.
[0005] The present application provides a hook device for a crane adopts the following technical solution: A hook device for a crane comprises a lifting rope, a bearing plate is installed at the end of the lifting rope, an opening for steel pipes to enter and exit is provided on one side of the bearing plate, a placement groove for steel pipes to be placed is provided in the bearing plate, and the placement groove is communicated with the opening; a baffle is vertically slid in the placement groove; a limit plate is horizontally slid in a side wall of one side of the bearing plate located at the notch of the placement groove, a limit groove for the limit plate to be plugged into is provided on one side of the baffle, a slope is provided on the side of the limit plate close to the baffle, and the limit plate is slidably matched with the baffle through the slope; a pushing component for pushing the limit plate to move is provided in the bearing plate, and a driving mechanism for driving the limit plate away from the baffle is also provided in the bearing plate.
[0006] By adopting the above technical solution, the staff first places the two ends of the steel pipe on the bottom of the placement grooves on the two bearing plates through the openings on the two bearing plates, and then moves the baffle plate downward. During the downward movement of the baffle plate, the baffle plate can push the limit plate to move through the inclined surface on the limit plate until the baffle plate moves to the notch of the placement groove. At this time, the limit groove on the baffle plate corresponds to the limit plate. At this time, the limit plate can be inserted into the limit groove under the action of the pushing component, the baffle plate is limited, and the notch of the placement groove is closed, thereby reducing the risk of the steel pipe being unhooked during the subsequent movement process and improving the safety of the overall hook device.
[0007] Preferably, the pushing assembly includes a pushing block and a pushing spring, the pushing block is fixedly disposed on the limiting plate, the pushing spring is horizontally disposed, and two ends of the pushing spring are respectively fixedly disposed on the pushing block and an inner wall of one side of the supporting plate.
[0008] By adopting the above technical solution, when the baffle pushes the limit plate to move through the inclined surface on the limit plate, the pushing spring is compressed. When the baffle moves to the position corresponding to the limit groove and the limit plate, the elastic force of the pushing spring can push the limit plate to move and insert it into the limit groove on the baffle, thereby reducing the difficulty of moving the limit plate.
[0009] Preferably, a roller is vertically slidable in the placement groove, and the steel pipe is in contact with and rollingly connected to the surface of the roller; sliders are rotatably provided at both ends of the roller, and the two sliders slide respectively on the opposite sides of the placement groove in the vertical direction, and the sliders can abut against the bottom inner wall of the bearing plate; the baffle is located above the steel pipe and is fixed on one of the sliders; a spring 1 is provided under the slider, and the two ends of the spring 1 are respectively fixed on the slider and the bottom inner wall of the load-bearing plate; a connecting block 1 is fixedly provided at the end of the lifting rope, a rotating rod is fixedly provided on the connecting block 1, a connecting block 2 is fixedly provided on the top of the bearing plate, and the rotating rod is rotatably provided on the connecting block 2.
[0010] By adopting the above technical solution, after the staff places the steel pipe in the placement groove, the steel pipe can contact with the surface of the roller shaft, and the gravity of the steel pipe itself can press the roller shaft downward, and the roller shaft drives the sliders at both ends downward, and the spring 1 is compressed; the spring 1 provides an elastic supporting force for the slider, and the spring 1 can buffer the impact force of the steel pipe falling, avoiding damage to the load-bearing plate, steel pipe and other components due to rigid collision; the lifting rope and the load-bearing plate are rotatably connected through the connecting block 1, the rotating rod and the connecting block 2. Since the load-bearing plate and the lifting rope can rotate, the load-bearing plate has the freedom to adjust its own angle when it is affected by the gravity of the steel pipe; at the same time, the roller shaft set can move along the axis of the steel pipe, so that the load-bearing plate It moves more smoothly on the steel pipe, greatly reducing the movement resistance and improving the efficiency and accuracy of the load-bearing plate position adjustment; when the steel pipe is lifted, the direction of gravity is vertically downward, and the steel pipe will have a natural tendency to sag, which will cause the roller to roll on the steel pipe, thereby prompting the load-bearing plate to move along the axis of the steel pipe to adjust the position. Finally, according to the principle of force balance, when the system reaches a balanced state, the lifting rope and the load-bearing plate are in a vertical state. At this time, the lifting rope tension can be most effectively transmitted to balance the gravity of the steel pipe. There is no component force caused by the angle, which reduces the additional energy loss or overload risk caused by the component force, and improves the safety and reliability of the entire lifting system.
[0011] Preferably, a positioning rod is fixedly provided on the side wall of the rotating rod, a positioning block 1 is vertically slidably provided on the top of the supporting plate, a positioning block 2 is vertically slidably provided on the positioning block 1, a spring 2 is provided between the positioning block 1 and the positioning block 2, and the two ends of the spring 2 are respectively fixedly provided on the positioning block 1 and the positioning block 2; a positioning groove for the positioning rod to be plugged in is provided on the positioning block 2; and a first driving component for driving the positioning block 2 to move is provided on the supporting plate.
[0012] By adopting the above technical solution, before the steel pipe is placed on the roller shaft, the positioning block 2 is far away from the positioning rod, which reduces the difficulty of rotation between the lifting rope and the load-bearing plate; when the lifting rope lifts the steel pipe, the gravity of the steel pipe drives the roller shaft to drive the slider to move downward, and the slider can trigger the first driving component when it moves downward. The first driving component can drive the positioning block 1 to drive the spring 2 and the positioning block 2 to move in the direction close to the rotating rod. Then, when the load-bearing plate moves along the axis of the steel pipe, the rotating rod can drive the positioning rod to rotate, and the positioning rod gradually approaches the positioning block 2. When the lifting rope and the load-bearing plate When gradually rotating to a vertical state, the end of the positioning rod close to the positioning block 2 gradually pushes the positioning block 2 to compress the spring 2 to move. When the lifting rope and the load-bearing plate are in a vertical state, the positioning rod corresponds to the positioning groove on the positioning block 2, and the elastic force of the spring 2 pushes the positioning block 2 to move toward the positioning rod until the positioning rod is inserted into the positioning groove on the positioning block 2. At this time, the rotating rod is limited, and the lifting rope and the load-bearing plate are fixed; the wear between the rotating rod and the connecting block 2 is reduced, and the shaking of the steel pipe during the lifting process is also reduced, thereby improving the stability of the entire lifting system.
[0013] Preferably, the first driving assembly includes a connecting rod, a driving plate, a push rod and a connecting block three, the connecting rod vertically slides in the supporting plate, the driving plate vertically slides on the top of the supporting plate, the two ends of the connecting rod are respectively fixed on the driving plate and one of the sliding blocks, the connecting block three is fixed on the top of the supporting plate, and the push rod is rotatably set on the connecting block; the two ends of the push rod are respectively abutted against the driving plate and the positioning block one, and a reset member for resetting the positioning block one is provided between the positioning block one and the supporting plate.
[0014] By adopting the above technical solution, during the downward movement of the slider, the connecting rod is also driven to move downward, the connecting rod drives the driving plate to move, the driving plate presses one end of the push rod downward, and the other end of the push rod pushes the positioning block upward, thereby reducing the difficulty of moving the positioning block upward.
[0015] Preferably, the driving mechanism includes a slide plate, a screw and a motor, the slide plate slides horizontally inside a side wall of the carrying plate close to the limiting plate, the screw is rotatably arranged on the side wall of the carrying plate, and the slide plate is threadedly engaged with the screw; the motor is installed on the side wall of the carrying plate, and one end of the screw is fixedly arranged on the rotating shaft of the motor; a guide plate is fixedly arranged on one end of the slide plate close to the limiting plate, and a pulling block is vertically slidably arranged on the guide plate, a spring three is arranged between the guide plate and the pulling block, and the two ends of the spring three are respectively fixedly arranged on the guide plate and the pulling block; a top block is fixedly arranged on the limiting plate, one end of the pulling block is provided with an inclined surface, the pulling block is slidably engaged with the top block through the inclined surface, and the side of the pulling block facing away from its inclined surface abuts against the top block, and the driving mechanism also includes a second driving component for driving the pulling block to move.
[0016] By adopting the above technical scheme, when the steel pipe is lifted and the lifting rope and the load-bearing plate are fixed, the motor is turned on first, the motor drives the lead screw to rotate, the lead screw drives the slide plate to move in the direction close to the limit plate and the top block, the slide plate drives the guide plate and the pulling block to move, then the inclined surface on the pulling block contacts the top block, the top block gradually pushes the pulling block downward, the spring three is stretched, and then the pulling block continues to move until the pulling block reaches the side position of the top block close to the baffle, at this time the elastic force of the spring three pulls the pulling block to move in the direction close to the limit plate; when the steel pipe is lifted to the destination, the staff needs to remove the steel pipe, and at this time the slide plate is driven to drive the pulling block away from the baffle Finally, the elastic force of the push spring can push the end of the limit plate provided with the inclined surface to move to the outside of the bearing plate, which is convenient for repeatedly limiting the baffle.
[0017] Preferably, the second driving assembly includes a push block, which slides horizontally inside a side wall of the supporting plate close to the pulling block, one end of the push block extends outside the placement groove, and a pressing block is fixedly provided on the pulling block, and inclined surfaces are provided at opposite ends of the push block, and the push block slides and cooperates with the sliding block and the pressing block respectively through the inclined surfaces at both ends; the second driving assembly also includes a reset member 2 for resetting the push block.
[0018] By adopting the above technical solution, during the process of the slider moving toward the notch of the placement slot, the slider can contact the inclined surface on the push block, and push the push block to move in the direction close to the pull block through the inclined surface on the push block. The end of the push block close to the pull block will gradually contact the lower pressure block, and push the lower pressure block downward through its inclined surface. The lower pressure block drives the pull block to move in the direction away from the limit plate and the top block, thereby reducing the difficulty of the pull block moving in the direction away from the limit plate; when the load-bearing plate lifts the steel pipe again, the slider moves downward to a position away from the push block. At this time, the reset member 2 can drive the push block to move, so that one end of the push block moves to the outside of the load-bearing plate again, so that the slider can repeatedly drive the push block to move.
[0019] Preferably, a contact plate is vertically slidably provided on one side of the baffle plate close to the steel pipe, and the contact plate can contact the side wall of the steel pipe; and a third driving component for driving the contact plate to move is provided on the bearing plate.
[0020] By adopting the above technical solution, when the steel pipe is lifted and the lifting rope and the load-bearing plate are fixed, the motor is turned on, the motor drives the lead screw to rotate, and the lead screw drives the slide plate to move toward the direction close to the baffle. The slide plate can trigger the third drive component during the movement, and the third drive component can drive the abutment plate to move toward the direction close to the steel pipe until the abutment plate abuts against the surface of the steel pipe, thereby reducing the intensity of the shaking of the steel pipe during the lifting process, and further improving the stability of the steel pipe during the entire lifting process.
[0021] Preferably, the third driving assembly includes a push rod 1, a push rod 2 and a connecting rod, the push rod 1 slides horizontally in the baffle, the push rod 2 slides horizontally in the side wall of the supporting plate, and one end of the push rod 2 is fixedly arranged on the slide plate, the two ends of the connecting rod are respectively hinged to the push rod 1 and the abutment plate, the push rod 2 can abut against the push rod 1, and the baffle is also provided with a reset member 3 for resetting the abutment plate and a reset member 4 for resetting the push rod 1.
[0022] By adopting the above technical solution, during the process of the slide plate moving toward the direction close to the baffle, the slide plate drives the push rod 2 to move toward the direction close to the push rod 1, and then the push rod 2 can contact with the push rod 1 and push the push rod 1 to move, and the push rod 1 drives the connecting rod to rotate, and the rotation of the connecting rod can push the abutment plate to move toward the direction close to the steel pipe, thereby reducing the difficulty of moving the abutment plate; when the steel pipe is lifted to the destination and removed, the staff drives the slide plate to drive the push rod 2 to move away from the baffle, and the reset member 3 and the reset member 4 set at this time can make the abutment plate and the push rod 1 move to the initial position, so that the staff can remove the steel pipe, and it is also convenient for the abutment plate to repeatedly abut and support the steel pipe.
[0023] Preferably, a support plate is vertically slidable inside the bottom side wall of the supporting plate, the support plate is located below the roller shaft, and the support plate can abut against the side wall of the roller shaft, a support rod is fixedly provided at the bottom of the support plate, a driving rod is fixedly provided on the slide plate, an inclined surface is provided at one end of the driving rod close to the support rod, and the driving rod is slidably engaged with the support rod through the inclined surface.
[0024] By adopting the above technical solution, when the steel pipe is lifted and the lifting rope and the load-bearing plate are fixed, the slide plate moves toward the baffle, and at the same time, the slide plate drives the driving rod to move toward the support rod. The driving rod can push the support rod upward through the inclined surface, and the support rod drives the support plate to move until the support plate abuts against the bottom of the roller shaft, thereby supporting the roller shaft and reducing the possibility of the roller shaft bending due to the gravity of the steel pipe.
[0025] In summary, the present application includes at least one of the following beneficial technical effects: The staff first places the two ends of the steel pipe at the bottom of the placement grooves on the two bearing plates through the openings on the two bearing plates, and then moves the baffle plate downward until the baffle plate moves to the notch of the placement groove. At this time, the limit groove on the baffle plate corresponds to the limit plate. At this time, the limit plate can be inserted into the limit groove under the action of the pushing component, the baffle plate is limited, and the notch of the placement groove is closed, thereby reducing the risk of the steel pipe being unhooked during the subsequent movement process and improving the safety of the overall hook device; after the staff places the steel pipe in the placement groove, the steel pipe can contact the surface of the roller shaft, and the gravity of the steel pipe itself The roller can be pressed downward, and the spring can buffer the impact of the falling steel pipe to avoid damage to the load-bearing plate, steel pipe and other components due to rigid collision; because the load-bearing plate and the lifting rope can rotate, the load-bearing plate has the freedom to adjust its own angle when it is affected by the gravity of the steel pipe; at the same time, the roller can move along the axis of the steel pipe, so that the load-bearing plate moves more smoothly on the steel pipe, greatly reducing the movement resistance and improving the efficiency and accuracy of the load-bearing plate position adjustment; when the steel pipe is lifted, the gravity direction is vertically downward, and the steel pipe will have a natural drooping tendency, which will make the roller The shaft rolls on the steel pipe, which prompts the load-bearing plate to move along the axis of the steel pipe to adjust its position. Finally, according to the principle of force balance, when the system reaches a balanced state, the lifting rope and the load-bearing plate are in a vertical state. At this time, the lifting rope tension can be most effectively transmitted to balance the gravity of the steel pipe. There is no component force caused by the angle, which reduces the additional energy loss or overload risk caused by the component force, and improves the safety and reliability of the entire lifting system. Before the steel pipe is placed on the roller, the second positioning block is far away from the positioning rod. When the lifting rope lifts the steel pipe, the gravity of the steel pipe drives the roller to drive the slider downward. When the slider moves downward, it can trigger the first driving component, which can drive the positioning block 1 to drive the spring 2 and the positioning block 2 to move towards the direction close to the rotating rod. Then, when the bearing plate moves along the axis of the steel pipe, the rotating rod can drive the positioning rod to rotate, and the positioning rod gradually approaches the positioning block 2. When the lifting rope and the bearing plate gradually rotate to a vertical state, the positioning rod is inserted into the positioning groove on the positioning block 2. At this time, the rotating rod is limited, and the lifting rope and the bearing plate are fixed; the wear between the rotating rod and the connecting block 2 is reduced, and the shaking of the steel pipe during the lifting process is also reduced, thereby improving the stability of the entire lifting system. Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 is a schematic diagram of the structure of a highlight slider in an embodiment of the present application; Figure 3 yes Figure 2 The enlarged view of point A in the middle; Figure 4 yes Figure 2 The enlarged view of point B in the middle; Figure 5 yes Figure 2 Enlarged view of point C in the middle.
[0026] Description of reference numerals: 1. Lifting rope; 2. Loading plate; 3. Connecting block 1; 4. Turning rod; 5. Connecting block 2; 6. Slot; 7. Placement slot; 8. Roller; 9. Sliding block; 10. Baffle; 11. Connecting plate; 12. Spring 1; 13. Limiting plate; 14. Limiting slot; 15. Pushing assembly; 151. Pushing block; 152. Pushing spring; 16. Positioning rod; 17. Positioning block 1; 18. Sliding rod 1; 19. Positioning block 2; 20. Sliding rod 2; 21. Spring 2; 22. Positioning slot; 23. First driving assembly; 231. Connecting rod; 232. Driving plate; 233. Push rod; 234. Connecting block 3; 235. Reset spring 1 ; 24. Driving mechanism; 241. Slide plate; 242. Lead screw; 243. Motor; 244. Guide plate; 245. Pull block; 246. Spring three; 247. Top block; 248. Second driving assembly; 2481. Push block; 2482. Pressing block; 2483. Reset spring two; 2484. Reset block one; 25. Abutment plate; 26. Slide rod three; 27. Third driving assembly; 271. Push rod one; 272. Push rod two; 273. Connecting rod; 274. Reset spring three; 275. Reset spring four; 276. Reset block two; 28. Support plate; 29. Support rod; 30. Slide rod four; 31. Driving rod. DETAILED DESCRIPTION
[0027] The following is combined with Figure 1-5 This application is described in further detail.
[0028] The present application embodiment discloses a hook device for a crane, such as Figure 1 The invention comprises a lifting rope 1, a bearing plate 2 is installed at the end of the lifting rope 1, a connecting block 3 is fixedly connected to the end of the lifting rope 1, a rotating rod 4 is fixedly arranged on the connecting block 3, a connecting block 5 is fixedly connected to the top of the bearing plate 2, a slot 6 for plugging the connecting block 5 is provided at the bottom of the connecting block 3, the rotating rod 4 is passed through and rotatably connected to the connecting block 5; an opening for the steel pipe to enter and exit is provided on one side of the bearing plate 2, a placement groove 7 for placing the steel pipe is provided in the bearing plate 2, the placement groove 7 extends in the vertical direction, and the placement groove 7 is communicated with the opening.
[0029] like Figure 1 and Figure 2As shown, there are multiple rollers 8 that slide vertically in the placement groove 7, and the multiple rollers 8 are arranged in sequence along the axial direction of the steel pipe, and the multiple rollers 8 are all arranged horizontally, and the axial lines of the rollers 8 are perpendicular to the axial line of the steel pipe; the steel pipe is in contact with and rollingly connected to the surface of the rollers 8; there are sliders 9 that slide vertically on the opposite sides of the placement groove 7, and the two ends of the rollers 8 are respectively rotatably connected to the two sliders 9; the sliders 9 can abut against the bottom inner wall of the bearing plate 2; there are baffles 10 that slide vertically in the placement groove 7, and the baffles 10 are located above the steel pipe, and a connecting plate 11 is fixedly connected to the top of one of the sliders 9, and one end of the baffle 10 is fixedly connected to the top of the connecting plate 11; a plurality of springs 12 are vertically arranged under each slider 9, and the two ends of the spring 12 are respectively fixedly arranged on the slider 9 and the bottom inner wall of the load-bearing plate.
[0030] like Figure 2 and Figure 3 As shown, the load-bearing plate 2 is located at the notch of the placement groove 7 and has a limit plate 13 that slides horizontally in the side wall on one side. A limit groove 14 for the limit plate 13 to be inserted is provided on the side of the baffle 10 close to the limit plate 13, and the limit groove 14 extends in the horizontal direction. A slope is provided on the top of the limit plate 13 close to one end of the baffle 10, and the limit plate 13 is connected to the baffle 10 by sliding on the slope.
[0031] like Figure 2 and Figure 3 As shown, a pushing assembly 15 for pushing the limiting plate 13 to move is provided in the supporting plate 2, and two groups of pushing assemblies 15 are provided, and are respectively provided on the opposite sides of the limiting plate 13; the pushing assembly 15 includes a pushing block 151 and a pushing spring 152, the pushing block 151 is fixedly connected to the side wall of the limiting plate 13, the pushing spring 152 is horizontally arranged, and the two ends of the pushing spring 152 are respectively fixedly connected to the pushing block 151 and the inner wall on one side of the supporting plate 2 away from the baffle 10.
[0032] like Figure 1 , Figure 2 and Figure 3 As shown, the staff first places the two ends of the steel pipe in the placement grooves 7 on the two bearing plates 2 through the openings on the two bearing plates 2, and the steel pipe can contact the surface of the roller 8. The gravity of the steel pipe itself can press the roller 8 downward, and the roller 8 drives the sliders 9 at both ends downward, and the spring 12 is compressed; the spring 12 provides elastic support for the slider 9, and the spring 12 can buffer the impact force of the steel pipe falling, avoiding damage to the bearing plate 2, the steel pipe and other components due to rigid collision.
[0033] like Figure 1 , Figure 2 and Figure 3As shown, the lifting rope 1 and the bearing plate 2 are connected in rotation through the connecting block 1 3, the rotating rod 4 and the connecting block 2 5. Since the bearing plate 2 and the lifting rope 1 can rotate, the bearing plate 2 has the freedom to adjust its own angle when it is subjected to the gravity of the steel pipe; at the same time, the roller 8 can move along the axis of the steel pipe, so that the bearing plate 2 moves more smoothly on the steel pipe, which greatly reduces the movement resistance and improves the efficiency and accuracy of the position adjustment of the bearing plate 2; when the steel pipe is lifted, the gravity direction is vertically downward, and the steel pipe will have a natural drooping tendency. This tendency will cause the roller 8 to roll on the steel pipe, thereby prompting the bearing plate 2 to move along the axis of the steel pipe to adjust the position. Finally, according to the principle of force balance, when the system reaches a balanced state, the lifting rope 1 and the bearing plate 2 are in a vertical state. At this time, the tension of the lifting rope 1 can be most effectively transmitted to balance the gravity of the steel pipe, and there is no component force generated by the angle, which reduces the additional energy loss or overload risk caused by the component force, and improves the safety and reliability of the entire lifting system.
[0034] like Figure 1 , Figure 2 and Figure 3 As shown, during the downward movement of the slider 9, the connecting plate 11 and the baffle 10 are driven to move downward together until the baffle 10 moves to the notch of the placement slot 7. At this time, the limit slot 14 on the baffle 10 corresponds to the limit plate 13. During the downward movement of the baffle 10, the baffle 10 pushes the limit plate 13 to move through the inclined surface on the limit plate 13, and the pushing spring 152 is compressed; when the baffle 10 moves to the position corresponding to the limit slot 14 and the limit plate 13, the elastic force of the pushing spring 152 can push the limit plate 13 to move and be plugged into the limit slot 14 on the baffle 10, the baffle 10 is limited, and the notch of the placement slot 7 is closed, thereby reducing the risk of the steel pipe being unhooked during the subsequent movement process and improving the safety of the overall hook device.
[0035] like Figure 2 and Figure 4 As shown, a positioning rod 16 is fixedly connected to the side wall of the rotating rod 4, a positioning block 17 is vertically slidably provided on the top of the carrying plate 2, a sliding rod 18 is fixedly connected to the bottom of the positioning block 17, and the sliding rod 18 is vertically penetrated and slides on the top of the carrying plate 2; a positioning block 19 is vertically slidably provided on the positioning block 17, a sliding rod 20 is fixedly connected to the bottom of the positioning block 19, and the sliding rod 20 is vertically penetrated and slides on the top of the positioning block 17; a spring 21 is provided between the positioning block 17 and the positioning block 19, the spring 21 is vertically arranged and sleeved on the sliding rod 20, and the two ends of the spring 21 are respectively fixedly connected to the positioning block 17 and the positioning block 19; a positioning groove 22 for the positioning rod 16 to be inserted is provided on the top of the positioning block 19, and the positioning groove 22 extends in the vertical direction.
[0036] like Figure 2 and Figure 4 As shown, the carrier plate 2 is provided with a first driving assembly 23 for driving the positioning block 2 19 to move, and the first driving assembly 23 includes a connecting rod 231, a driving plate 232, a push rod 233 and a connecting block 3 234. The connecting rod 231 is passed through and vertically slides on the inner wall of the carrier plate 2, and the top of the connecting rod 231 extends to the outside of the top of the carrier plate 2, and the driving plate 232 vertically slides on the top of the carrier plate 2. The two ends of the connecting rod 231 are respectively fixedly connected to the driving plate 232 and the top of one of the sliders 9; the connecting block 3 234 and the push rod 233 are both arranged between the driving plate 232 and the positioning block 17 The connecting block three 234 is fixedly connected to the top of the supporting plate 2, and a rotating shaft is passed through and fixedly connected to the side wall of the top rod 233, and the two ends of the rotating shaft are respectively rotatably connected to the two ends of the top of the connecting block three 234; the tops of the two ends of the top rod 233 are respectively abutted against the bottom of the driving plate 232 and the bottom of the positioning block 17, and a reset member 1 is provided between the positioning block 17 and the supporting plate 2 to reset the positioning block 17, and the reset member 1 is a reset spring 235, which is sleeved on the sliding rod 18, and the two ends of the reset spring 235 are respectively fixedly connected to the positioning block 17 and the top of the supporting plate 2.
[0037] like Figure 2 and Figure 4 As shown, before the steel pipe is placed on the roller shaft 8, the positioning block 19 is far away from the positioning rod 16, which reduces the difficulty of rotation between the lifting rope 1 and the bearing plate 2; when the lifting rope 1 lifts the steel pipe, the gravity of the steel pipe drives the roller shaft 8 to drive the slider 9 to move downward. During the downward movement of the slider 9, the connecting rod 231 is also driven to move downward, and the connecting rod 231 drives the driving plate 232 to move. The driving plate 232 presses one end of the push rod 233 downward, and the other end of the push rod 233 pushes the positioning block 17 upward, and the reset spring 235 is stretched, which reduces the difficulty of moving the positioning block 17 upward.
[0038] like Figure 2 and Figure 4As shown, the positioning block 17 drives the spring 21 and the positioning block 2 19 to move in the direction close to the rotating rod 4. Subsequently, when the bearing plate 2 moves along the axial direction of the steel pipe, the rotating rod 4 can drive the positioning rod 16 to rotate, and the positioning rod 16 gradually approaches the positioning block 2 19. When the lifting rope 1 and the bearing plate 2 gradually rotate to a vertical state, the end of the positioning rod 16 close to the positioning block 2 19 gradually pushes the positioning block 2 19 to compress the spring 21 to move. When the lifting rope 1 and the bearing plate 2 are in a vertical state, the positioning rod 16 corresponds to the positioning groove 22 on the positioning block 2 19, and the elastic force of the spring 21 pushes the positioning block 2 19 to move in the direction close to the positioning rod 16 until the positioning rod 16 is inserted into the positioning groove 22 on the positioning block 2 19. At this time, the rotating rod 4 is limited, and the lifting rope 1 and the bearing plate 2 are fixed; the wear between the rotating rod 4 and the connecting block 2 5 is reduced, and the shaking of the steel pipe during the lifting process is also reduced, thereby improving the stability of the entire lifting system.
[0039] like Figure 2 and Figure 3 As shown, a driving mechanism 24 for driving the limiting plate 13 away from the baffle 10 is also provided in the bearing plate 2, and the driving mechanism 24 includes a slide plate 241, a lead screw 242 and a motor 243. The slide plate 241 slides horizontally in the side wall of the bearing plate 2 close to the limiting plate 13, the lead screw 242 is horizontally arranged, and the lead screw 242 is rotatably connected to the side wall of the bearing plate 2, and the lead screw 242 is penetrated and threadedly connected to the slide plate 241; the motor 243 is fixedly installed on the side wall of the bearing plate 2 close to the limiting plate 13 by bolts, the rotating shaft of the motor 243 is horizontally arranged, and one end of the lead screw 242 is fixedly connected to the motor 24 3; one end of the slide plate 241 close to the limit plate 13 is fixedly connected to a guide plate 244, and a pull block 245 is passed through the guide plate 244 and slides vertically; a spring three 246 is provided between the guide plate 244 and the pull block 245, and the spring three 246 is vertically arranged, and the two ends of the spring three 246 are respectively fixedly arranged on the guide plate 244 and the pull block 245; a top block 247 is fixedly connected to the bottom of the limit plate 13, and the top of the pull block 245 is provided with an inclined surface, and the pull block 245 is connected to the top block 247 by sliding on the inclined surface, and the side of the pull block 245 away from its inclined surface abuts against the side of the top block 247 close to the baffle 10.
[0040] like Figure 2 and Figure 3As shown, the driving mechanism 24 also includes a second driving component 248 for driving the pulling block 245 to move, and the second driving component 248 includes a pushing block 2481, and the pushing block 2481 is penetrated and horizontally slides in the side wall of the supporting plate 2 close to the pulling block 245, and one end of the pushing block 2481 extends to the outside of the placement groove 7, and a lower pressing block 2482 is fixedly connected to the pulling block 245, and the bottoms of the opposite ends of the pushing block 2481 are provided with inclined surfaces, and the pushing block 2481 is respectively slidably connected to the slider 9 and the lower pressing block 2482 through the inclined surfaces at both ends; the second driving component 248 also includes a reset member 2 for resetting the pushing block 2481, and the reset member 2 is a reset spring 2483, and the reset spring 2483 is horizontally arranged, and the side wall of the pushing block 2481 is fixedly connected with a reset block 1 2484, and the two ends of the reset spring 2483 are respectively fixedly connected to the reset block 1 2484 and the inner wall of the supporting plate 2.
[0041] like Figure 2 and Figure 3 As shown, when the steel pipe is lifted and the lifting rope 1 and the supporting plate 2 are fixed, the motor 243 is turned on first, and the motor 243 drives the lead screw 242 to rotate, and the lead screw 242 drives the slide plate 241 to move toward the direction close to the limit plate 13 and the top block 247, and the slide plate 241 drives the guide plate 244 and the pull block 245 to move, and then the inclined surface on the pull block 245 contacts the top block 247, and the top block 247 gradually pushes the pull block 245 to move downward, and the spring three 246 is stretched, and then the pull block 245 continues to move until the pull block 245 is at a side position of the top block 247 close to the baffle 10. At this time, the elastic force of the spring three 246 pulls the pull block 245 to move toward the direction close to the limit plate 13.
[0042] like Figure 2 and Figure 3 As shown, when the steel pipe is hoisted to the destination, the staff needs to remove the steel pipe. At this time, the slide plate 241 is driven to drive the pull block 245 to move away from the baffle 10. At this time, the side of the pull block 245 away from its inclined surface abuts against the top block 247, and pushes the top block 247 and the limit plate 13 to move away from the baffle 10, pushing the spring 152 to be compressed until the limit plate 13 moves to a position away from the baffle 10, thereby releasing the limit of the baffle 10, making it easier for the staff to remove the steel pipe.
[0043] like Figure 2 and Figure 3As shown, when the steel pipe is removed, the elastic force of the spring 12 can push the slider 9 to move toward the notch direction of the placement groove 7. During the movement of the slider 9 toward the notch direction of the placement groove 7, the slider 9 can contact the inclined surface on the push block 2481, and push the push block 2481 to move toward the direction of the pull block 245 through the inclined surface on the push block 2481. The reset spring 2483 is compressed, and the end of the push block 2481 close to the pull block 245 will gradually contact the lower pressing block 2482, and push the lower pressing block 2482 downward through its inclined surface. 82 drives the pulling block 245 to move in the direction away from the limiting plate 13 and the top block 247. Finally, the elastic force of the pushing spring 152 can push the end of the limiting plate 13 with the inclined surface to move to the outside of the bearing plate 2, so as to facilitate repeated limiting of the baffle 10; when the bearing plate 2 lifts the steel pipe again, the sliding block 9 moves downward to a position away from the pushing block 2481. At this time, the elastic force of the reset spring 2483 can drive the pushing block 2481 to move, so that one end of the pushing block 2481 moves to the outside of the bearing plate 2 again, so that the sliding block 9 can repeatedly drive the pushing block 2481 to move.
[0044] like Figure 2 and Figure 5 As shown, abutment plate 25 is vertically slidably provided on one side of baffle plate 10 close to the steel pipe, and a slide bar 3 26 is fixedly connected to the abutment plate 25. The slide bar 3 26 is vertically arranged, passes through the baffle plate 10 and vertically slides on the baffle plate 10, and the abutment plate 25 can abut against the side wall of the steel pipe.
[0045] like Figure 2 , Figure 3 and Figure 5 As shown, the bearing plate 2 is provided with a third driving assembly 27 for driving the abutment plate 25 to move, and the third driving assembly 27 includes a push rod 1 271, a push rod 272 and a connecting rod 273. The push rod 1 271 is arranged to slide horizontally in the side wall of the baffle 10 close to the limiting plate 13, and the push rod 272 is arranged to slide horizontally in the side wall of the bearing plate 2 close to the limiting plate 13, and one end of the push rod 272 is fixedly connected to the top of the slide plate 241, and the two ends of the connecting rod 273 are respectively hinged to the push rod 1 271 and the abutment plate 25, and the push rod 272 can abut against the push rod 1 271. The baffle 10 is also provided with a reset member 3 for resetting the abutment plate 25 and a reset member 4 for resetting the push rod 271. The reset member 3 is a reset spring 3 274, which is vertically arranged and sleeved on the slide rod 3 26. The two ends of the reset spring 3 274 are respectively fixedly connected to the abutment plate 25 and the inner wall of the baffle 10; the reset member 4 is a reset spring 4 275, which is horizontally arranged. The side wall of the push rod 271 is fixedly connected with a reset block 276, and the two ends of the reset spring 4 275 are respectively fixedly connected to the reset block 276 and the inner wall of the baffle 10.
[0046] like Figure 2 , Figure 3 and Figure 5 As shown, when the steel pipe is lifted and the lifting rope 1 and the supporting plate 2 are fixed, the motor 243 is turned on at this time, and the motor 243 drives the lead screw 242 to rotate, and the lead screw 242 drives the slide plate 241 to move in the direction close to the baffle 10. During the movement of the slide plate 241, the slide plate 241 also drives the push rod 272 to move in the direction close to the push rod 1 271, and then the push rod 272 can contact the push rod 1 271 and push the push rod 1 271 to move, and the push rod 1 271 drives the connecting rod 273 to rotate, and the rotation of the connecting rod 273 can push the abutment plate 25 to move in the direction close to the steel pipe, and the reset spring three 274 and the reset spring four 275 are both stretched until the abutment plate 25 abuts against the surface of the steel pipe, thereby reducing the intensity of the shaking of the steel pipe during the lifting process, and further improving the stability of the steel pipe in the entire lifting process.
[0047] like Figure 2 , Figure 3 and Figure 5 As shown, after the steel pipe is lifted to the destination and taken down, the staff drives the slide plate 241 to drive the push rod 272 to move away from the baffle 10. At this time, the reset spring 3 274 and the reset spring 4 275 can move the abutment plate 25 and the push rod 1 271 to the initial position, thereby facilitating the staff to remove the steel pipe and also facilitating the abutment plate 25 to abut and support the next steel pipe.
[0048] like Figure 2 As shown, a support plate 28 is vertically slidable in the bottom side wall of the supporting plate 2, the support plate 28 is located below the roller shaft 8, and the support plate 28 can abut against the side wall of the roller shaft 8, a support rod 29 is fixedly connected to the bottom of the support plate 28, two sliding rods 4 30 are vertically provided at the bottom of the support rod 29, the top ends of the sliding rods 4 30 are fixedly connected to the support rod 29, and the bottom ends of the sliding rods 4 30 are penetrated and slide on the inner wall of the supporting plate 2; a driving rod 31 is fixedly connected to the bottom end of the sliding plate 241, the driving rod 31 slides horizontally in the bottom side wall of the supporting plate 2, an inclined surface is provided at the top of the driving rod 31 near one end of the supporting rod 29, and the driving rod 31 is slidably connected to the bottom of the supporting rod 29 through the inclined surface.
[0049] like Figure 2 As shown, when the steel pipe is lifted and the lifting rope 1 and the supporting plate 2 are fixed, the slide plate 241 moves toward the baffle 10, and the slide plate 241 simultaneously drives the driving rod 31 to move toward the support rod 29. The driving rod 31 can push the support rod 29 upward through the inclined surface, and the support rod 29 drives the support plate 28 to move until the support plate 28 abuts against the bottom of the roller shaft 8, thereby supporting the roller shaft 8 and reducing the possibility of the roller shaft 8 bending due to the gravity of the steel pipe.
[0050] The implementation principle of the embodiment of the present application is as follows: the staff first places the two ends of the steel pipe on the bottom of the placement grooves 7 on the two bearing plates 2 through the openings on the two bearing plates 2, and then moves the baffle 10 downward. During the downward movement of the baffle 10, the baffle 10 can push the limiting plate 13 to move through the inclined surface on the limiting plate 13 until the baffle 10 moves to the notch of the placement groove 7. At this time, the limiting groove 14 on the baffle 10 corresponds to the limiting plate 13. At this time, the limiting plate 13 can be inserted into the limiting groove 14 under the action of the pushing component 15, the baffle 10 is limited, and the notch of the placement groove 7 is closed, thereby reducing the risk of the steel pipe being unhooked during the subsequent movement process and improving the safety of the overall hook device.
[0051] 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. A hook device for a crane, comprising a lifting rope (1), characterized in that: A bearing plate (2) is installed at the end of the lifting rope (1); an opening for the steel pipe to enter and exit is provided on one side of the bearing plate (2); a placement groove (7) for the steel pipe to be placed is provided in the bearing plate (2); the placement groove (7) is communicated with the opening; a baffle (10) is vertically slidable in the placement groove (7); a limit plate (13) is horizontally slidable in a side wall of one side of the bearing plate (2) located at the notch of the placement groove (7); a baffle (10) is provided on one side of the baffle (10); A limiting groove (14) is provided for the limiting plate (13) to be inserted into, and a side of the limiting plate (13) close to the baffle (10) is provided with an inclined surface, and the limiting plate (13) is slidably engaged with the baffle (10) via the inclined surface; a pushing component (15) for pushing the limiting plate (13) to move is provided in the supporting plate (2), and a driving mechanism (24) for driving the limiting plate (13) away from the baffle (10) is also provided in the supporting plate (2).
2. A hook device for a crane according to claim 1, characterized in that: The pushing assembly (15) comprises a pushing block (151) and a pushing spring (152); the pushing block (151) is fixedly arranged on the limiting plate (13); the pushing spring (152) is arranged horizontally; and two ends of the pushing spring (152) are respectively fixedly arranged on the pushing block (151) and an inner wall of one side of the supporting plate (2).
3. A hook device for a crane according to claim 1, characterized in that: A roller (8) is vertically slidable in the placement groove (7), and the steel pipe is in contact with and rollingly connected to the surface of the roller (8); sliders (9) are rotatably arranged at both ends of the roller (8), and the two sliders (9) slide along the vertical direction on the opposite sides of the placement groove (7), and the sliders (9) can abut against the bottom inner wall of the bearing plate (2); the baffle (10) is located above the steel pipe and is fixedly arranged on one of the sliders (9); a spring (12) is arranged below the slider (9), and the two ends of the spring (12) are respectively fixedly arranged on the slider (9) and the bottom inner wall of the bearing plate (2); a connecting block (3) is fixedly arranged at the end of the suspension rope (1), and a rotating rod (4) is fixedly arranged on the connecting block (3); a connecting block (5) is fixedly arranged on the top of the bearing plate (2), and the rotating rod (4) is rotatably arranged on the connecting block (5).
4. A hook device for a crane according to claim 1, characterized in that: A positioning rod (16) is fixedly arranged on the side wall of the rotating rod (4); a positioning block (17) is vertically slidably arranged on the top of the supporting plate (2); a positioning block (19) is vertically slidably arranged on the positioning block (17); a spring (21) is arranged between the positioning block (17) and the positioning block (19); two ends of the spring (21) are respectively fixedly arranged on the positioning block (17) and the positioning block (19); a positioning groove (22) for the positioning rod (16) to be inserted is provided on the positioning block (19); and a first driving component (23) for driving the positioning block (19) to move is provided on the supporting plate (2).
5. A hook device for a crane according to claim 4, characterized in that: The first driving assembly (23) comprises a connecting rod (231), a driving plate (232), a push rod (233) and a connecting block three (234); the connecting rod (231) slides vertically in the bearing plate (2); the driving plate (232) slides vertically on the top of the bearing plate (2); the two ends of the connecting rod (231) are respectively fixedly arranged on the driving plate (232) and one of the sliding blocks (9); the connecting block three (234) is fixedly arranged on the top of the bearing plate (2); and the push rod (233) is rotatably arranged on the connecting block three (234); the two ends of the push rod (233) are respectively abutted against the driving plate (232) and the positioning block one (17); a reset member for resetting the positioning block one (17) is provided between the positioning block one (17) and the bearing plate (2).
6. A hook device for a crane according to claim 1, characterized in that: The driving mechanism (24) comprises a slide plate (241), a lead screw (242) and a motor (243); the slide plate (241) slides horizontally inside a side wall of the bearing plate (2) close to the limiting plate (13); the lead screw (242) is rotatably arranged on the side wall of the bearing plate (2), and the slide plate (241) is threadedly engaged with the lead screw (242); the motor (243) is mounted on the side wall of the bearing plate (2), and one end of the lead screw (242) is fixedly arranged on the rotating shaft of the motor (243); a guide plate (244) is fixedly arranged on one end of the slide plate (241) close to the limiting plate (13); the guide plate (244) ) is provided with a pulling block (245) which slides vertically on the guide plate (244), a spring three (246) is provided between the guide plate (244) and the pulling block (245), and the two ends of the spring three (246) are respectively fixedly arranged on the guide plate (244) and the pulling block (245); a top block (247) is fixedly arranged on the limiting plate (13), one end of the pulling block (245) is provided with an inclined surface, the pulling block (245) is slidably engaged with the top block (247) by the inclined surface, and the side of the pulling block (245) which is away from its inclined surface abuts against the top block (247), and the driving mechanism (24) further includes a second driving component (248) for driving the pulling block (245) to move.
7. A hook device for a crane according to claim 6, characterized in that: The second driving assembly (248) includes a push block (2481), the push block (2481) slides horizontally inside a side wall of the supporting plate (2) close to the pulling block (245), one end of the push block (2481) extends outside the placement groove (7), a lower pressing block (2482) is fixedly arranged on the pulling block (245), the opposite ends of the push block (2481) are provided with inclined surfaces, and the push block (2481) is slidably matched with the slider (9) and the lower pressing block (2482) through the inclined surfaces at its two ends; the second driving assembly (248) also includes a reset member 2 for resetting the push block (2481).
8. A hook device for a crane according to claim 1, characterized in that: A contact plate (25) is vertically slidably disposed on one side of the baffle plate (10) close to the steel pipe, and the contact plate (25) can contact the side wall of the steel pipe; a third driving component (27) for driving the contact plate (25) to move is disposed on the bearing plate (2).
9. A hook device for a crane according to claim 8, characterized in that: The third driving assembly (27) comprises a push rod 1 (271), a push rod 2 (272) and a connecting rod (273); the push rod 1 (271) slides horizontally in the baffle (10); the push rod 2 (272) slides horizontally in the side wall of the supporting plate (2); one end of the push rod 2 (272) is fixedly arranged on the slide plate (241); the two ends of the connecting rod (273) are respectively hinged to the push rod 1 (271) and the abutment plate (25); the push rod 2 (272) can abut against the push rod 1 (271); and a reset member 3 for resetting the abutment plate (25) and a reset member 4 for resetting the push rod 1 (271) are also provided in the baffle (10).
10. A hook device for a crane according to claim 3, characterized in that: A support plate (28) is vertically slidable in the side wall at the bottom of the carrier plate (2); the support plate (28) is located below the roller shaft (8) and can abut against the side wall of the roller shaft (8); a support rod (29) is fixedly arranged at the bottom of the support plate (28); a driving rod (31) is fixedly arranged on the slide plate (241); an inclined surface is provided at one end of the driving rod (31) close to the supporting rod (29); and the driving rod (31) is slidably matched with the supporting rod (29) via the inclined surface.