Crown block lifting hook anti-falling device
By designing the anti-detachment device of the Sky Truck hook, the manual drive device is used to achieve automatic snapping and locking of the anti-detachment component, which solves the problem that the traditional hook needs to manually press the anti-detachment pad to cause clamping of the hand, and improves safety and reliability.
Patent Information
- Application Number
- CN202420773416.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-15
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-04-15
AI Technical Summary
When using the traditional sky truck hook, staff need to press the anti-removal pad, which poses a risk of clamping on the hands.
A trolley hook anti-detachment device is designed, and the automatic snap-up and locking of the anti-detachment component is achieved through a manual drive device, avoiding the pressing operation of the anti-detachment pad.
It effectively avoids the risk of staff being pinched in their hands, and ensures the anti-detachment effect of the hook during lifting, improving safety and reliability.
Smart Images
Figure CN222665160U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of hooks, in particular to an anti-dropping device for a crane hook. Background Art
[0002] Overhead crane is another name for bridge crane. Bridge crane is a lifting equipment that is horizontally mounted above workshops, warehouses and material yards to lift materials. Because its two ends are located on tall concrete columns or metal supports, its shape is like a bridge. The bridge of the bridge crane runs longitudinally along the tracks laid on the elevated platforms on both sides, which can make full use of the space under the bridge to lift materials without being hindered by ground equipment.
[0003] When using the hook in the prior art, the worker generally needs to press the hook anti-dropping paddle with his hand. When pressing, the hand is easily pinched. Based on this, improvement is needed. Utility Model Content
[0004] The technical problem to be solved by the utility model is that when a traditional overhead crane hook is in use, a worker is required to press the hook anti-drop plate, which poses a risk of pinching the hand.
[0005] In order to achieve the above functions, the technical solution adopted by the utility model is as follows: a crane hook anti-slip device, comprising a lifting ring, a connecting column passing through the lower end of the lifting ring, a baffle plate provided on the upper end of the connecting column and located in the lifting ring, a fixing plate fixed on the connecting column, a hook fixed on the lower end of the connecting column, a manual driving device provided on the fixing plate, and an anti-slip assembly sleeved on the connecting column.
[0006] Preferably, the manual drive device includes a screw rod, which rotates in a fixed plate, a handwheel is fixed on the screw rod, a pin hole is passed through the handwheel, a pin rod is passed through the fixed plate, the pin rod can be inserted into the pin hole, an end cap is provided at the upper end of the pin rod, a spring is sleeved on the pin rod, one end of the spring is fixedly connected to the end cap and the other end is fixedly connected to the upper end surface of the fixed plate, by rotating the screw rod, the anti-detachment component can be driven to buckle on the hook, and the handwheel can be locked by the pin rod to prevent the screw rod from rotating freely and becoming unhooked.
[0007] Preferably, the anti-slip assembly includes a sliding sleeve, the sliding sleeve is slidably sleeved on the connecting column, the sliding sleeve is threadedly connected to the screw rod, and an anti-slip baffle is fixed on the sliding sleeve, and the anti-slip baffle can block the hook.
[0008] Preferably, a limit plate is provided at the upper end of the screw rod, and the limit plate rotates inside the fixed plate, so that the screw rod will not fall off the fixed plate.
[0009] Preferably, the pin holes are provided in a plurality of groups in a circumferential array on the hand wheel.
[0010] Preferably, the initial elastic force of the spring on the pin rod can ensure that the pin rod passes through the hand wheel.
[0011] Preferably, the length of the screw rod is sufficient to allow the anti-slip baffle to block the hook and the sliding sleeve will not detach from the screw rod.
[0012] The utility model adopts the above structure to achieve the following beneficial effects:
[0013] The utility model discloses the hand-operated locking device is provided with the manual driving device, can realize that by rotating the hand wheel, the sliding sleeve drives the anti-slip baffle plate to move down, completes the blocking and anti-slipping of the hook, changes the traditional way of pressing the anti-slip plate, can avoid the phenomenon that the staff's hands are pinched, and at the same time, the position of the anti-slip baffle plate can be locked by inserting the pin rod into the pin hole, so as to avoid the phenomenon that the anti-slip baffle plate opens and causes the hook to fall off during the process of lifting heavy objects by the overhead crane. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is an overall stereoscopic diagram of an anti-drop device for a crane hook of the utility model;
[0015] Figure 2 for Figure 1 A partial enlarged view of the middle part;
[0016] Figure 3 A three-dimensional diagram of the screw rod.
[0017] Among them, 1. lifting ring, 2. connecting column, 3. baffle, 4. fixing plate, 5. hook, 6. manual drive device, 7. anti-slip assembly, 8. screw rod, 9. handwheel, 10. pin hole, 11. pin rod, 12. end cap, 13. spring, 14. sliding sleeve, 15. anti-slip baffle, 16. limit plate. DETAILED DESCRIPTION
[0018] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.
[0019] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.
[0020] like Figure 1-3 The utility model is a device for preventing a crane hook from falling off, comprising a lifting ring 1, a connecting column 2 passing through the lower end of the lifting ring 1, a baffle 3 being arranged at the upper end of the connecting column 2 and being located in the lifting ring 1, a fixing plate 4 being fixedly arranged on the connecting column 2, a hook 5 being fixedly arranged at the lower end of the connecting column 2, a manual driving device 6 being arranged on the fixing plate 4, and an anti-falling component 7 being sleeved on the connecting column 2;
[0021] like Figure 1-3 The manual drive device 6 includes a screw rod 8, which rotates in the fixed plate 4. A limit plate 16 is provided at the upper end of the screw rod 8. The length of the screw rod 8 can meet the blocking of the anti-slip baffle 15 on the hook 5 and the sliding sleeve 14 will not be separated from the screw rod 8. The limit plate 16 rotates inside the fixed plate 4, and the screw rod 8 will not fall from the fixed plate 4. A hand wheel 9 is fixed on the screw rod 8. A pin hole 10 is provided through the hand wheel 9. The pin holes 10 are arranged in a circumferential array on the hand wheel 9. A pin rod 11 is provided through the fixed plate 4. The pin rod 11 can be inserted into the pin hole 10. An end cap 12 is provided at the upper end of the pin rod 11. A spring 13 is sleeved on the pin rod 11. One end of the spring 13 is fixed to the end cap 12 and the other end is fixed to the upper end surface of the fixed plate 4. The initial elastic force of the spring 13 on the pin rod 11 can ensure that the pin rod 11 passes through the hand wheel 9. By rotating the screw rod 8, the anti-detachment component 7 can be driven to buckle on the hook 5. The hand wheel 9 can be locked by the pin rod 11 to prevent the screw rod 8 from rotating freely and being unhooked.
[0022] like Figure 1 The anti-slip assembly 7 includes a sliding sleeve 14, which is sleeved and slid on the connecting column 2, and the sliding sleeve 14 is threadedly connected to the screw rod 8. An anti-slip baffle 15 is fixed on the sliding sleeve 14, and the anti-slip baffle 15 can block the hook 5.
[0023] During specific use, it is connected and fixed with the rope of the overhead crane through the lifting ring 1. When the hook 5 lifts the sling, it is necessary to prevent the hook 5 from falling off. First, pull the end cap 12 to make the pin 11 disengage from the pin hole 10, and the spring 13 is stretched and stored. At the same time, turn the hand wheel 9, which is fixedly connected to the screw rod 8. The hand wheel 9 will drive the screw rod 8 to rotate, and the upper end of the screw rod 8 will rotate in the fixed plate 4. The screw rod 8 will drive the sliding sleeve 14 to slide on the connecting column 2, so that the anti-falling baffle 15 will block the opening of the hook 5 to achieve the purpose of preventing it from falling off.
[0024] Loosen the end cap 12, and under the action of the spring 13, the pin rod 11 will be inserted into the pin hole 10 again to lock the hand wheel 9. The screw rod 8 will not rotate in the fixed plate 4, thereby ensuring that the anti-slip baffle 15 is in a blocked state for the hook 5, which can achieve the purpose of firmly preventing the hook 5 from slipping off, and is very safe and reliable.
[0025] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.
Claims
1. A crane hook anti-drop device, comprising a lifting ring, characterized in that: A connecting column passes through the lower end of the lifting ring, a baffle is provided on the upper end of the connecting column and is located in the lifting ring, a fixing plate is fixed on the connecting column, a hook is fixed on the lower end of the connecting column, a manual driving device is provided on the fixing plate, and an anti-slip assembly is sleeved on the connecting column.
2. The anti-drop device for a crane hook according to claim 1, characterized in that: The manual drive device includes a screw rod, which rotates in a fixed plate. A handwheel is fixed on the screw rod, a pin hole is passed through the handwheel, a pin rod is passed through the fixed plate, and the pin rod can be inserted into the pin hole. An end cap is provided at the upper end of the pin rod, and a spring is sleeved on the pin rod. One end of the spring is fixedly connected to the end cap and the other end is fixedly connected to the upper end surface of the fixed plate.
3. The anti-drop device for a crane hook according to claim 2, characterized in that: The anti-slip assembly comprises a sliding sleeve, the sliding sleeve is sleeved and slid on the connecting column, the sliding sleeve is threadedly connected to the screw rod, an anti-slip baffle is fixedly provided on the sliding sleeve, and the anti-slip baffle can block the hook.
4. The anti-drop device for a crane hook according to claim 3, characterized in that: A limiting plate is arranged at the upper end of the screw rod, and the limiting plate rotates inside the fixing plate.
5. The anti-drop device for a crane hook according to claim 4, characterized in that: The pin holes are arranged in a plurality of groups in a circumferential array on the hand wheel.
6. The anti-drop device for a crane hook according to claim 5, characterized in that: The initial elastic force of the spring on the pin rod can ensure that the pin rod passes through the hand wheel.
7. The anti-drop device for a crane hook according to claim 6, characterized in that: The length of the screw rod can meet the requirements of the anti-slip baffle to block the hook and the sliding sleeve will not fall off the screw rod.