Bridge plate lifting hook
By designing the limit part and connecting rod of the hook, combined with the limit rod and the telescopic rod, the suspension instability caused by unstable rope sliding is solved, and the stable suspension and service life of the hook are achieved.
Patent Information
- Application Number
- CN202421750636.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-23
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-07-23
AI Technical Summary
The top of the existing hook is a smooth plane, which causes the rope to slide unstable, causing the hook to tilt, the hanging objects to be unstable, the connection points are prone to break, the service life is short and there are safety hazards.
The top of the design limit part is convex, forming a closed loop and the hook part, and the connecting rod and the hook form an angle A. Combined with the rotatable limiting rod and the telescopic rod, the rope guidance and object limit are realized, and the stability is improved.
Through the guidance and angle design of the rope at the limit, the stability of the hanging objects of the hook is improved, the overload at the connection is avoided, the service life of the hook is extended, and safety is ensured.
Smart Images
Figure CN223163051U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of lifting hooks, and particularly relates to a bridge plate lifting hook. Background Art
[0002] The lifting hook is used as a suspension part on a crane to realize the connection between an object and the crane. Most of the tops of the existing lifting hooks are smooth planes. When the rope is straightened, the rope slides back and forth on the top of the lifting hook, causing the lifting hook to tilt. As a result, when the lifting hook suspends an object, the force is unstable, and the stable connection of the object cannot be achieved. Long-term suspension will apply an overloaded force to the connection part, the connection point is prone to breakage, the service life of the lifting hook is reduced. At the same time, the breakage during use will pose a danger to workers and damage the object. Content of the Utility Model
[0003] In order to solve the above problems existing in the prior art, the purpose of the utility model is to provide a bridge plate lifting hook.
[0004] The technical solution adopted by the utility model includes:
[0005] A limiting part, the top of which is convex;
[0006] Two bending hook parts, which are symmetrically distributed along the limiting part. The two bending hook parts are integrally welded with the limiting part and form a closed loop;
[0007] A connecting rod, located at the intersection of the two bending hook parts. One end of the connecting rod is fixedly connected to the bending hook part, and a hook is fixedly provided at the other end. An included angle A is formed between the connecting rod and the hook.
[0008] As a preference of the utility model, a convex part of the limiting part forms an included angle B, and the included angle B satisfies: 150° < B < 160°.
[0009] As a preference of the utility model, the included angle A satisfies: 70° < A < 85°.
[0010] As a preference of the utility model, a receiving groove is formed in the connecting rod, a limiting rod is arranged in the receiving groove, one end of the limiting rod is hinged in the receiving groove, a reset plate is arranged on one side of the limiting rod, and the reset plate is slidably connected in the connecting rod.
[0011] As a preference of the utility model, a spring for driving the reset plate to reset is arranged on one side of the reset plate. The spring is located at one end of the reset plate far from the limiting rod, and one end of the spring abuts against the reset plate, and the other end is fixedly connected in the connecting rod. Two limiting rings are arranged on the reset plate, and both of the two limiting rings are fixedly connected to the reset plate. The two limiting rings are used to limit the sliding distance of the reset plate.
[0012] Preferably, an expansion rod is provided inside the limiting rod. The expansion rod is installed and connected inside the limiting rod. Positioning holes are provided on the limiting rod and the expansion rod. The limiting rod and the expansion rod are connected in a limited manner through pins and the positioning holes.
[0013] Preferably, a limiting groove is provided on the hook. The limiting groove is located on the side of the hook close to the limiting rod.
[0014] Preferably, there are a plurality of the limiting grooves, and the plurality of limiting grooves are equidistantly distributed along the length direction of the hook.
[0015] The beneficial effects of the present utility model are as follows:
[0016] 1. As a bridge plate hook, the top of the limiting part of the present utility model is formed in an outwardly convex shape to guide the rope passing through the closed loop formed by connecting the limiting part and the hook part. After the rope is straightened, it is guided to the convex part under the action of the inclined surface of the convexity, that is, at the exact center of the limiting part, so that the two ends of the hook tend to be balanced in expansion and contraction, thereby improving the stability of the object suspended at the other end of the hook. In addition, an included angle A is formed between the connecting rod and the hook, and the included angle A can increase the contact area between the hook, the connecting rod and the object, thereby improving the stability of the suspended object.
[0017] 2. By providing a rotatable limiting rod in the connecting rod, an expandable and retractable rod is telescopically connected inside the limiting rod. The limiting rod and the expandable and retractable rod are hinged in the accommodating groove, and the other end can support on the limiting groove, so as to limit between the hook and the connecting rod and prevent the internally suspended object from slipping. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The following further describes the present utility model in detail with reference to the drawings and specific implementation methods.
[0019] Figure 1 is a schematic structural diagram of Embodiment 1 of the present utility model;
[0020] Figure 2 is a schematic structural diagram of the limiting rod located in the accommodating groove in Embodiment 2 of the present utility model;
[0021] Figure 3 is a schematic structural diagram of the usage state of the limiting rod and the expandable and retractable rod in Embodiment 2 of the present utility model;
[0022] Figure 4 is the present utility model Figure 3 enlarged schematic structural diagram at A.
[0023] In the figure: 1. Limiting part; 2. Hook part; 3. Connecting rod; 4. Hook; 31. Reset plate; 32. Accommodating groove; 33. Limiting rod; 34. Telescopic rod; 35. Positioning hole; 36. Limiting ring; 41. Limiting groove. Specific implementation manner
[0024] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the following further details the present utility model in combination with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model, that is, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Usually, the components of the embodiments of the present utility model described and shown in the accompanying drawings herein can be arranged and designed in various different configurations.
[0025] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but only represents the selected embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present utility model.
[0026] The following combines Figures 1-4 to illustrate the specific implementation manner of the present utility model. A bridge plate hook, and Embodiment 1 includes:
[0027] The limiting part 1 has a convex top, and the top protrudes outwards. During the use of the hook 4, the limiting part 1 is used to connect the rope. Under the action of the limiting part 1 on the passing rope, the rope is always located in the middle of the limiting part 1 when the rope is straightened, improving the stability of the hook 4 for suspending objects and avoiding the inclination of the hook caused by the rope at different positions of the limiting part 1;
[0028] There are two hook parts 2, which are symmetrically distributed along the limiting part 1. The two hook parts 2 are integrally welded to the limiting part 1 and form a closed loop. The two hook parts 2 are used to connect the limiting part 1, so that a closed-loop space is formed between the two hook parts 2 and the limiting part 1, and the connecting rope can pass through the inside to realize the connection between the rope and the hook;
[0029] The connecting rod 3 is located at the intersection of the two hook parts 2. One end of it is fixedly connected to the hook part 2, and a hook 4 is fixedly provided at the other end. An angle A is formed between the connecting rod 3 and the hook 4. When hanging the bridge plate, due to the certain wall thickness of the hanging hole of the bridge plate, by forming an angle A between the connecting rod 3 and the hook 4, the angle A can increase the contact area between the hook 4 and the connecting rod 3 and the bridge plate, so that when hanging, the weight of the bridge plate is distributed to different parts of the hook 4, avoiding overloading of the connection part between the hook 4 and the connecting rod 3, and improving the stability of hanging the bridge plate and the overall service life of the hook 4.
[0030] Please refer to Figure 1 As shown, a convex portion of the limiting portion 1 forms an included angle B, and the included angle B satisfies: 150° < B < 160°. By forming an outwardly convex included angle B, the convex included angle can guide the rope when it is straightened, so that the rope is always located in the middle of the limiting portion 1 after being stressed, at the center of the force receiving part of the entire lifting hook, improving the stability of the hanging bridge plate of the lifting hook.
[0031] Please refer to Figure 1 As shown, the included angle A satisfies: 70° < A < 85°, which increases the contact area between the hook 4 and the connecting rod 3 and the bridge plate when the hook 4 connects the bridge plate, so that the supporting force required for hanging the bridge plate is distributed to different components of the lifting hook, avoiding overloading of the force at the intersection of the hook 4 and the connecting rod 3 and resulting in the fracture of the lifting hook.
[0032] Embodiment 2
[0033] Please refer to Figures 2-4 As shown, a receiving groove 32 is provided in the connecting rod 3, a limiting rod 33 is provided in the receiving groove 32, one end of the limiting rod 33 is hinged in the receiving groove 32, a reset plate 31 is provided on one side of the limiting rod 33, and the reset plate 31 is slidably connected in the connecting rod 3. The limiting rod 33 is hinged in the receiving groove 32 to be rotatable out of the receiving groove 32 and support the other end on the hook 4, so as to limit the object suspended in the hook 4 and the connecting rod 3 and prevent it from slipping out of the space formed between the hook 4 and the limiting rod 33.
[0034] Please refer to Figures 3-4As shown in the figure, a spring for driving the reset of the reset plate 31 is provided on one side of the reset plate 31. The spring is located at one end of the reset plate 31 away from the limit rod 33, and one end of the spring abuts against the reset plate 31, and the other end is fixedly connected to the connecting rod 3. Two limit rings 36 are provided on the reset plate 31, and both of the two limit rings 36 are fixedly connected to the reset plate 31. The two limit rings 36 are used to limit the sliding distance of the reset plate 31. By providing a space in the connecting rod 3 as the sliding stroke of the reset plate 31, the reset plate 31 can slide up and down in this stroke. Among them, a reset spring is embedded and installed in this stroke. One end of the reset spring is fixedly connected to the top of the reset plate 31, and the other end is fixedly connected to one end of the sliding stroke away from the hook 4. When the reset plate 31 slides upward, the reset spring is compressed and stores elastic potential energy. After releasing the reset plate 31, the reset of the reset plate 31 is realized under the action of the reset spring. Among them, two limit rings 36 are provided on the reset plate 31. The limit rings 36 facilitate the application of force when driving the reset plate 31 to slide. At the same time, the maximum and minimum sliding distances of the reset plate 31 in its sliding stroke can be limited. When the reset plate 31 is limited, it can ensure that the limit rod 33 is always located in the receiving groove 32 and prevent it from sliding out. However, when the limit rod 33 needs to be used, the limit on the limit rod 33 is released by sliding the reset plate 31 upward.
[0035] Please refer to Figure 3 As shown in the figure, a telescopic rod 34 is provided in the limit rod 33. The telescopic rod 34 is installed and connected in the limit rod 33. Positioning holes 35 are provided on the limit rod 33 and the telescopic rod 34. The limit rod 33 and the telescopic rod 34 are limitedly connected through pins and the positioning holes 35. The telescopic rod 34 can be telescopically connected in the limit rod 33. When the limit rod 33 needs to be used, by sliding the telescopic rod 34 out to the required length and inserting the pins through the corresponding positioning holes 35 on the limit rod 33 and the telescopic rod 34 respectively, the telescopic length of the telescopic rod 34 is locked and limited.
[0036] Please refer to Figure 3 As shown in the figure, a limit groove 41 is provided on the hook 4. The limit groove 41 is located on the side of the hook 4 close to the limit rod 33. When the telescopic rod 34 and the limit rod 33 are in use, by limiting the other end away from the hinge in the limit rod 33, the objects or ropes in the connecting rod 3 and the hook part 2 are limited.
[0037] Please refer to Figure 3 As shown in the figure, there are multiple limit grooves 41. The multiple limit grooves 41 are equidistantly distributed along the length direction of the hook 4. The multiple limit grooves 41 are used for limiting when the telescopic rod 34 is supported.
[0038] The working principle of the present utility model:
[0039] Pass the rope through the closed loop formed by the limiting part 1 and the two hook parts 2, and connect the other end of the rope to the crane. Connect the hooks to the four fulcrums of the bridge plate respectively to realize the suspension of the bridge plate.
[0040] Connect the connecting rod 3 and the limiting groove 41 in the connecting hole of the bridge plate. After connecting all four vertices of the bridge plate, start the crane to rise. The rope located within the closed loop is stressed and straightened. At this time, the protruding structure at the top of the limiting part 1 guides the rope, causing the rope to always be at the exact center of the limiting part 1, improving the stability of the hook in suspending the bridge plate.
[0041] In some cases, to prevent the item suspended between the connecting rod 3 and the hook 4 from falling off, drive the reset plate 31 to move upward, compressing the reset spring on one side of the reset plate 31. At this time, the reset plate 31 releases the limit on the limiting rod 33. By rotating the limiting rod 33, it slides out of the receiving groove 32 along one end, and the other end of the receiving groove 32 can support in the limiting groove 41. Among them, a telescopic rod 34 can be telescopically slid out of the limiting rod 33 to extend the supporting length of the limiting rod 33. By inserting a pin into the positioning holes 35 of the limiting rod 33 and the telescopic rod 34, the locking and limiting between the limiting rod 33 and the telescopic rod 34 are realized, achieving the limiting of the object suspended between the connecting rod 3 and the hook 4 and preventing it from sliding out, improving the stability of the hook in suspending the object. After the limiting rod 33 is used, it can be stored in the receiving groove 32, and the reset plate 31 can limit it to always be in the receiving groove 32, preventing it from rotating randomly.
[0042] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, terms such as "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0043] The above content is only an example and explanation of the structure of the present utility model. Those skilled in the art of this technology can make various modifications or supplements to the described specific embodiments or use similar methods for substitution. As long as it does not deviate from the structure of the utility model or exceed the scope defined by this claim book, it should belong to the protection scope of the present utility model.
Claims
1. A bridge plate hook, characterized in that, Comprising: A limiting part with a convex top; Two hook parts, symmetrically distributed along the limiting part. The two hook parts are integrally welded to the limiting part and form a closed loop; A connecting rod located at the intersection of the two hook parts. One end of the connecting rod is fixedly connected to the hook part, and a hook is fixedly provided at the other end. An angle A is formed between the connecting rod and the hook.
2. The bridge plate hook according to claim 1, characterized in that: A convex part of the limiting part forms an angle B, and the angle B satisfies: 150° < B < 160°.
3. The bridge plate hook according to claim 1, characterized in that: The angle A satisfies: 70° < A < 85°.
4. A bridge plate hook according to claim 1, characterized in that: A receiving groove is formed in the connecting rod, and a limiting rod is arranged in the receiving groove. One end of the limiting rod is hinged in the receiving groove, and a reset plate is arranged on one side of the limiting rod. The reset plate is slidably connected in the connecting rod.
5. The bridge plate hook according to claim 4, characterized in that: A spring for driving the reset plate to reset is arranged on one side of the reset plate. The spring is located at the end of the reset plate away from the limiting rod, and one end of the spring abuts against the reset plate, and the other end is fixedly connected in the connecting rod. Two limiting rings are arranged on the reset plate, and both of the two limiting rings are fixedly connected to the reset plate. The two limiting rings are used to limit the sliding distance of the reset plate.
6. The bridge plate lifting hook according to claim 5, characterized in that: A telescopic rod is arranged in the limiting rod. The telescopic rod is installed and connected in the limiting rod. Positioning holes are arranged on the limiting rod and the telescopic rod. The limiting rod and the telescopic rod are limitedly connected through pins and the positioning holes.
7. A bridge plate hook according to claim 4, characterized in that: A limiting groove is arranged on the hook, and the limiting groove is located on the side of the hook close to the limiting rod.
8. A bridge plate hook according to claim 7, characterized in that: There are multiple limiting grooves, and the multiple limiting grooves are equidistantly distributed along the length direction of the hook.