Spring locking self-unhooking lifting hook
By designing a spring-locked self-detaching hook, the spring provides the hook deflection force and the extension end seals the opening, solving the problem of easy detachment during traditional self-detaching hooks during lifting, thus achieving higher safety and ease of maintenance.
Patent Information
- Application Number
- CN202520276492.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-02-20
AI Technical Summary
Traditional self-unhooking systems are prone to cargo detachment during lifting due to sudden stops or shaking, posing safety hazards and limiting their application scenarios.
Design a spring-locking self-disengaging hook that uses a spring to provide the force for the hook to deflect and open, combined with an extension end to seal the hook opening, to ensure that the goods do not disengage during lifting, and improves maintenance convenience through a detachable connection structure.
It effectively prevents goods from detaching from the hook during hoisting due to sudden stops or shaking, expands application scenarios, improves safety and maintenance convenience, and reduces reliance on the gantry crane's main rope for opening and closing.
Smart Images
Figure CN223687949U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to self-unhooking technical field, specifically, and relates to a spring locking self-unhooking lifting hook. BACKGROUND
[0002] Traditional self-unhooking mainly has two forms, one door machine self-unhooking utilizes door machine opening and closing main rope to control self-unhooking locking and overturning, and application scene has greater limitation. One rotating self-unhooking lifting hook needs manual righting to prevent early overturning of the lifting hook before being stressed, and the number of simultaneous use is limited. Moreover, the opening of the lifting hook is still in the open state after the existing self-unhooking lifts heavy objects, and if emergency stop or serious shaking occurs during hoisting, the goods are prone to unhooking, which has great safety hazards. SUMMARY
[0003] The utility model provides a spring locking self-unhooking lifting hook, and solves the problem that the goods are prone to unhooking if emergency stop or serious shaking occurs during hoisting in the related art.
[0004] The technical scheme of the utility model is as follows:
[0005] A spring locking self-unhooking lifting hook comprises:
[0006] A mounting frame has an extension end;
[0007] A lifting hook is hinged to the mounting frame, and one end of the lifting hook is clamped to the extension end;
[0008] A connecting seat is detachably arranged on the mounting frame;
[0009] A spring is arranged at one end on the connecting seat and at the other end on the lifting hook, and the spring is used to provide a force for deflecting and opening the lifting hook relative to the mounting frame.
[0010] Optionally, the mounting frame side wall has a plurality of threaded holes, and the utility model further comprises:
[0011] A fastening bolt is arranged on the connecting seat, and the connecting seat is threadedly connected with the threaded hole through the fastening bolt.
[0012] Optionally, the mounting frame has a mounting groove, the lifting handle of the lifting hook is located in the mounting groove, the lifting handle abuts against the connecting seat side wall, and the connecting seat is used to limit the lifting handle.
[0013] Optionally, the mounting frame comprises:
[0014] A frame body;
[0015] An extension plate is arranged on the bottom of the frame body, and an extension end of the extension plate is located at an end of the extension plate away from the frame body, the extension end corresponds to the hook ring end of the hook, and the extension end is used for blocking the opening position of the hook.
[0016] Optionally, the hook ring end of the hook has a groove, and the device further comprises:
[0017] A fixing seat is arranged on the inner wall of the extension plate and located at the extension end;
[0018] An elastic member is arranged in the fixing seat;
[0019] A pressing ball is arranged on the elastic member, and the pressing ball is clamped with the groove.
[0020] Optionally, the hook handle has a through hole, and the device further comprises:
[0021] A mounting shaft is detachably arranged on the mounting frame, the mounting shaft penetrates through the through hole, and the mounting shaft has threaded portions at two ends, and the threaded portions are located outside the mounting frame.
[0022] A nut is threadedly connected to the threaded portions.
[0023] Optionally, the device further comprises:
[0024] A first ring body is arranged on the connecting seat;
[0025] A second ring body is arranged on the back of the hook ring, one end of the spring is arranged on the first ring body, and the other end of the spring is arranged on the second ring body.
[0026] Optionally, the spring is a tension spring.
[0027] Optionally, the device further comprises:
[0028] A support plate has a limiting hole, the support plate is slidably arranged in the mounting groove, and after the support plate is slid, the limiting hole is sleeved on the hook handle.
[0029] Optionally, the device further comprises:
[0030] A connecting ring is arranged on the top of the mounting frame, and the connecting ring is used for connecting a cable.
[0031] The working principle and beneficial effects of the device are as follows:
[0032] In this invention, when goods need to be lifted, they are hung on the hook. The hook, under the weight of the goods, overcomes the spring's tension, causing it to flip and engage with the extension end, closing the hook's opening and preventing the goods from falling. When unloading is required at the designated location, the goods are simply placed there. At this point, the goods' weight is no longer acting on the hook, and the spring's tension exceeds the external force on the hook, causing it to deflect and open relative to the mounting frame, allowing the goods to be unloaded. Compared to traditional self-unhooking hooks, this spring-locking self-unhooking hook reduces reliance on the gantry crane's main rope, expanding its application scenarios. Furthermore, it eliminates the need for manual hook straightening and allows for unlimited use. Moreover, when lifting heavy objects, the hook's opening is sealed by the extension end, effectively preventing the goods from detaching due to sudden stops or swaying during lifting, thus improving safety. Attached Figure Description
[0033] The preferred embodiments will be described below in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.
[0034] Figure 1 This is a schematic diagram of the overall structure of the hook in this utility model;
[0035] Figure 2 This is a schematic diagram of the hook deflection structure in this utility model;
[0036] Figure 3 This is a left view of the hook in this utility model;
[0037] Figure 4 for Figure 3 Enlarged view of a portion of point A in the middle.
[0038] In the diagram: 1. Mounting bracket; 101. Frame body; 1011. Mounting groove; 2. Extension plate; 201. Extension end; 3. Hook; 301. Hook ring; 302. Lifting handle; 303. Groove; 3021. Through hole; 4. Connecting seat; 5. Spring; 6. Fastening bolt; 7. Fixing seat; 8. Elastic element; 9. Extrusion ball; 10. Mounting shaft; 1001. Threaded part; 11. Nut; 12. First ring body; 13. Second ring body; 14. Connecting ring; 15. Support plate; 1501. Limiting hole. Detailed Implementation
[0039] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.
[0040] For the simplicity of the drawings, only the parts related to the utility model are shown in the drawings, which do not represent the actual structure of the product. In addition, in order to make the drawings simple and easy to understand, in some drawings, only one of the parts with the same structure or function is shown schematically, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".
[0041] In this article, it should be noted that unless otherwise specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0042] In addition, in the description of the present application, the terms "first", "second" and the like are only used for differentiation and description, and cannot be understood as indicating or implying relative importance.
[0043] Reference Figures 1-4 For an embodiment of the utility model, a spring locking self-unhooking hook is provided, which comprises a mounting frame 1, the mounting frame 1 has an extension end 201; a hook 3 is hinged to the mounting frame 1, one end of the hook 3 is clamped to the extension end 201; a connecting seat 4 is detachably arranged on the mounting frame 1; a spring 5 is arranged on the connecting seat 4 at one end and on the hook 3 at the other end, and the spring 5 is used to provide the force for the hook 3 to deflect and open relative to the mounting frame 1.
[0044] In the above scheme, the extension end 201 is integrally formed with the mounting frame 1, the connecting seat 4 is a rectangular block structure, and the connecting seat 4 is connected with the mounting frame 1 by bolts. The spring 5 is a tensile spring 5, one end of which is fixed in the fixing hole of the connecting seat 4, and the other end is fixed on the back side of the hook 3. Specifically, the hook 3 structure is composed of the mounting frame 1, the hook 3, the connecting seat 4 and the spring 5, the extension end 201 of the mounting frame 1 is clamped with one end of the hook 3, forming a locking structure, and the spring 5 provides the power for the hook 3 to open, so that the hook 3 can be automatically unhooked when it does not lift the goods.
[0045] When the goods need to be lifted, the goods are hung on the hook 3, at this time the hook 3 is subjected to the gravity of the goods, overcomes the tension of the spring 5, the hook 3 is turned over and clamped with the extension end 201, the opening of the hook 3 is closed, and it is ensured that the goods will not fall off. When the goods need to be unloaded at the designated position, the goods can be placed at the designated position, at this time the gravity of the goods does not act on the hook 3, the tension of the spring 5 is greater than the external force acting on the hook 3, the hook 3 is deflected relative to the mounting frame 1 to open, and the goods can be unloaded from the hook 3.
[0046] Compared with the traditional self-unhooking, the spring locking self-unhooking hook 3 reduces the dependence on the opening and closing main rope of the portal crane, and expands the application scenarios. At the same time, manual hook 3 righting is not required, and the number of use is not limited. Moreover, when the heavy object is lifted, the opening of the hook 3 is blocked by the extension end 201, effectively preventing the goods from unhooking due to sudden stop or shaking during lifting, and improving the safety.
[0047] Further, the mounting frame 1 has a plurality of threaded holes on the side wall, and further comprises a fastening bolt 6, the fastening bolt 6 is arranged on the connecting seat 4, and the connecting seat 4 is threadedly connected with the threaded holes through the fastening bolt 6.
[0048] In the above scheme, a plurality of threaded holes are uniformly distributed on the side wall of the mounting frame 1, the connecting seat 4 is provided with a circular hole at a position corresponding to the threaded hole, and the fastening bolt 6 is threadedly connected with the threaded hole of the mounting frame 1 through the circular hole of the connecting seat 4. Through the cooperation of the fastening bolt 6 and the threaded hole, the detachable connection of the connecting seat 4 and the mounting frame 1 is realized. This connection mode is simple and reliable, and is convenient for mounting and dismounting the connecting seat 4, and facilitates maintenance and replacement of the spring 5 or other components.
[0049] When the connecting seat 4 is installed, the connecting seat 4 is placed at a specified position of the mounting frame 1, the circular hole on the connecting seat 4 is aligned with the threaded hole on the mounting frame 1, then the fastening bolt 6 is screwed into the threaded hole, and the bolt is tightened to firmly fix the connecting seat 4 on the mounting frame 1. When dismounting, the fastening bolt 6 is only loosened, and then the connecting seat 4 can be removed from the mounting frame 1. The detachable connection mode improves the maintenance convenience of the hook 3, and reduces the maintenance cost. When the connecting seat 4 or related components are damaged, they can be quickly replaced, reducing equipment downtime and improving work efficiency.
[0050] Further, the mounting frame 1 has a mounting groove 1011, the lifting handle 302 of the hook 3 is located in the mounting groove 1011, the lifting handle 302 abuts against the side wall of the connecting seat 4, and the connecting seat 4 is used for limiting the lifting handle 302.
[0051] In the above scheme, the mounting rack 1 has a mounting groove 1011 inside, which is used to accommodate the hook handle 302 of the lifting hook 3. The connecting seat 4 is installed on one side of the mounting groove 1011, and its side wall is in close contact with the hook handle 302, which plays a limiting role. The mounting groove 1011 provides a stable mounting space for the hook handle 302 of the lifting hook 3, and the connecting seat 4 limits the hook handle 302 to prevent the lifting hook 3 from shaking or deviating during lifting, ensuring the stability of the lifting hook 3.
[0052] During the lifting of goods, when the lifting hook 3 shakes under the action of external force, the hook handle 302 can be in contact with the side wall of the connecting seat 4, and the limiting action of the connecting seat 4 on the hook handle 302 ensures the stability of the position of the lifting hook 3 and prevents deviation. Improve the stability of the lifting hook 3, reduce the risk of goods unhooking due to the shaking or deviation of the lifting hook 3, and further improve the safety of the lifting process. At the same time, the stable structure also helps to prolong the service life of the lifting hook 3.
[0053] Further, the mounting rack 1 includes a rack body 101; the extension plate 2 is inclinedly arranged at the bottom of the rack body 101, and the extension end 201 is located at the end of the extension plate 2 away from the rack body 101, and the extension end 201 corresponds to the end of the hook ring 301 of the lifting hook 3, and the extension end 201 is used to block the opening position of the lifting hook 3.
[0054] In the above scheme, the rack body 101 of the mounting rack 1 is a rectangular frame structure, and the extension plate 2 is inclinedly arranged at the bottom of the rack body 101 by welding, bolt connection or one-piece forming. The extension end 201 is located at the end of the extension plate 2 away from the rack body 101, and the shape of the extension end 201 matches the end of the hook ring 301 of the lifting hook 3, which can effectively block the opening position of the lifting hook 3. The inclined arrangement of the extension plate 2 makes the extension end 201 correspond to the end of the hook ring 301 of the lifting hook 3 accurately, forming a closed structure to prevent goods from falling from the opening of the lifting hook 3.
[0055] When the lifting hook 3 hangs the goods and pulls up, the end of the hook ring 301 of the lifting hook 3 tightly matches the extension end 201, and the extension end 201 blocks the opening of the lifting hook 3. Even if there is an emergency stop or shaking during lifting, the goods will not unhook from the opening of the lifting hook 3. When unloading is needed, the lifting hook 3 is opened under the action of the spring 5, and the extension end 201 is separated from the end of the hook ring 301. The design further enhances the safety of the lifting hook 3, effectively prevents the goods from unhooking during lifting, and ensures the safe operation of the lifting operation. At the same time, the inclined extension plate 2 design is also conducive to the loading and unloading operation of the goods.
[0056] Further, the hook ring 301 of the hook 3 has a groove 303 at the end, and a fixing seat 7 is arranged on the inner wall of the extension plate 2 and located at the extension end 201; an elastic member 8 is arranged in the fixing seat 7; and a pressing ball 9 is arranged on the elastic member 8 and is connected with the groove 303.
[0057] In the above scheme, the hook ring 301 of the hook 3 has a groove 303 at the end, and the fixing seat 7 is fixed on the inner wall of the extension plate 2 by means of bolts or welding and is located at the extension end 201. The elastic member 8 is a compression spring 5 arranged in the fixing seat 7, and the pressing ball 9 is connected with the elastic member 8, and the diameter of the pressing ball 9 is slightly larger than that of the groove 303.
[0058] By arranging the groove 303 at the end of the hook ring 301 of the hook 3, the fixing seat 7, the elastic member 8 and the pressing ball 9 on the inner wall of the extension plate 2, a clamping structure is formed. The elastic member 8 provides pressure for the pressing ball 9, so that the pressing ball 9 can be tightly clamped in the groove 303, and the connection stability of the hook 3 and the extension end 201 is enhanced.
[0059] When the hook 3 hangs the goods, the end of the hook ring 301 of the hook 3 is close to the extension end 201, and the pressing ball 9 is clamped in the groove 303 under the action of the elastic member 8, so that the hook 3 is firmly connected with the extension end 201. During the lifting process, even if a larger external force is applied, the pressing ball 9 can still be kept in the groove 303, preventing the hook 3 from being unhooked. When the goods need to be unloaded, the hook 3 is opened under the action of the spring 5, and the pressing ball 9 is separated from the groove 303.
[0060] The clamping structure further improves the locking performance of the hook 3, increases the safety of the hook 3 during the lifting process, effectively prevents the goods from being accidentally unhooked, and is suitable for lifting scenes with high safety requirements.
[0061] Further, the lifting handle 302 of the hook 3 has a through hole 3021, and a mounting shaft 10 is detachably arranged on the mounting frame 1, the mounting shaft 10 penetrates through the through hole 3021, the mounting shaft 10 has a threaded portion 1001 at both ends, and the threaded portion 1001 is located outside the mounting frame 1; and a nut 11 is threadedly connected with the threaded portion 1001.
[0062] In the above scheme, the lifting handle 302 of the hook 3 has a through hole 3021, and the mounting shaft 10 is a cylindrical metal shaft having a threaded portion 1001 at both ends. The mounting frame 1 is provided with a mounting hole corresponding to the position of the through hole 3021, the mounting shaft 10 penetrates through the through hole 3021 of the hook 3 and the mounting hole of the mounting frame 1, and the nut 11 is threadedly connected with the threaded portion 1001 of the mounting shaft 10.
[0063] The detachable connection of the hook 3 and the mounting frame 1 is achieved by the cooperation of the mounting shaft 10 and the nut 11. This connection is simple and reliable, and facilitates the installation, disassembly and maintenance of the hook 3. When installing the hook 3, the mounting shaft 10 is inserted through the through hole 3021 of the hook 3 and the mounting hole of the mounting frame 1, and then the nut 11 is screwed on both ends of the mounting shaft 10. Tightening the nut 11 makes the hook 3 firmly installed on the mounting frame 1. When disassembling, only need to loosen the nut 11, then the mounting shaft 10 can be taken out from the hook 3 and the mounting frame 1, thereby disassembling the hook 3.
[0064] The detachable connection improves the versatility and maintenance convenience of the hook 3. When the hook 3 is damaged or needs to be replaced, it can be quickly disassembled and installed, reducing downtime and improving work efficiency. At the same time, it is also convenient for regular inspection and maintenance of the hook 3.
[0065] Further, it also includes a first ring body 12, which is arranged on the connecting seat 4; a second ring body 13 is arranged on the back of the shackle 301 of the hook 3, one end of the spring 5 is arranged on the first ring body 12, and the other end of the spring 5 is arranged on the second ring body 13.
[0066] In the above scheme, the first ring body 12 is fixed on the connecting seat 4 by welding or bolt connection, and the second ring body 13 is also fixed on the back of the shackle 301 of the hook 3 by welding or bolt connection. The two ends of the spring 5 have hooks, one end of the spring 5 is hung on the first ring body 12, and the other end is hung on the second ring body 13. By arranging the first ring body 12 and the second ring body 13, a fixed connection point is provided for the spring 5, so that the spring 5 can be stably connected between the connecting seat 4 and the hook 3, and the spring 5 can effectively provide the opening force for the hook 3.
[0067] Further, the spring 5 is a tension spring.
[0068] In the above scheme, when the hook 3 hangs the goods, the tension spring is stretched and stores elastic potential energy. When unloading at the designated position, the control device reduces the external force on the hook 3, the elastic potential energy of the tension spring is released, the hook 3 is pulled to deflect relative to the mounting frame 1 to open, and the goods are unloaded from the hook 3.
[0069] Further, it also includes a support plate 15, which has a limiting hole 1501, and the support plate 15 is slidably arranged in the mounting groove 1011, and after sliding, the limiting hole 1501 is sleeved on the lifting handle 302 of the hook 3.
[0070] In the above scheme, the support plate 15 is a rectangular plate structure, the length and width are matched with the mounting groove 1011, and the support plate 15 can be freely slid in the mounting groove 1011 or locked by bolts. The limit hole 1501 is processed on the support plate 15, the size of the limit hole 1501 is matched with the hook handle 302 of the hook 3, and the hook handle can be locked after the support plate 15 is manually slid down.
[0071] Further, the connecting ring 14 is further included, the connecting ring 14 is arranged on the top of the mounting frame 1, and the connecting ring 14 is used for connecting the cable.
[0072] In the above scheme, before hoisting the goods, one end of the cable is passed through the connecting ring 14, and then the cable is fixed on the connecting ring 14 by knotting or other fixing methods. During hoisting, the cable lifts the hook 3 and the goods through the connecting ring 14, and the transportation of the goods is realized. When hoisting to the designated position, the hook 3 is unhooked by the control device, the goods are unloaded from the hook 3, and then the cable is removed from the connecting ring 14. The connecting ring 14 makes the connection of the hook 3 and the cable more convenient and reliable, and improves the efficiency of hoisting operation. At the same time, it is also convenient to replace and maintain the cable, and the safety of hoisting operation is ensured.
[0073] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and all should be covered in the scope of the claims of the present application.
Claims
1. A spring-locked self-unhooking hook, characterized in that The utility model relates to a kind of installation frame, including: Mounting frame (1) with extension end (201); Hook (3) is hinged to the mounting frame (1), one end of the hook (3) is clamped on the extension end (201); Connecting seat (4) is detachably arranged on the mounting frame (1); Spring (5) is arranged on the connecting seat (4) on one end, and the other end is arranged on the hook (3), and the spring (5) is used to provide the force that the hook (3) is deflected and opened relative to the mounting frame (1).
2. A spring locked self-releasing hook according to claim 1, wherein The mounting frame (1) has a plurality of threaded holes on the side wall, further comprising: Fastening bolt (6) is arranged on the connecting seat (4), and the connecting seat (4) is connected with the threaded hole by the fastening bolt (6).
3. A spring locked self-releasing hook according to claim 1, wherein The mounting frame (1) has a mounting groove (1011), and the hook handle (302) of the hook (3) is located in the mounting groove (1011), and the hook handle (302) is abutted on the side wall of the connecting seat (4), and the connecting seat (4) is used to limit the hook handle (302).
4. A spring locked self-releasing carabiner according to claim 1, wherein The mounting frame (1) comprises: Frame body (101); Extension plate (2) is obliquely arranged at the bottom of the frame body (101), and the extension end (201) is located at one end of the extension plate (2) away from the frame body (101), the extension end (201) corresponds to the end of the shackle (301) of the hook (3), and the extension end (201) is used to block the opening position of the hook (3).
5. A spring locked self-releasing carabiner according to claim 4, characterized in that The end of the shackle (301) of the hook (3) has a groove (303), further comprising: Fixed seat (7) is arranged on the inner wall of the extension plate (2) and located at the extension end (201); Elastic member (8) is arranged in the fixed seat (7); Extrusion ball (9) is arranged on the elastic member (8), and the extrusion ball (9) is clamped with the groove (303).
6. A spring locked self-releasing carabiner according to claim 1, wherein The hook handle (302) of the hook (3) has a through hole (3021), further comprising: Mounting shaft (10) is detachably arranged on the mounting frame (1), the mounting shaft (10) penetrates the through hole (3021), and the mounting shaft (10) has threaded portions (1001) at both ends, and the threaded portions (1001) are located outside the mounting frame (1); Nut (11) is threadedly connected on the threaded portion (1001).
7. A spring-locking self-releasing hook according to claim 1, wherein Further comprising: First ring body (12) is arranged on the connecting seat (4); Second ring body (13) is arranged on the back of the shackle (301) of the hook (3), one end of the spring (5) is arranged on the first ring body (12), and the other end of the spring (5) is arranged on the second ring body (13).
8. A spring-locking self-releasing hook according to claim 1, wherein The spring (5) is a tension spring.
9. A spring locked self-releasing carabiner according to claim 3, wherein Further comprising: Support plate (15) has a limiting hole (1501), the support plate (15) is slidably arranged in the mounting groove (1011), and after the support plate (15) slides, the limiting hole (1501) is sleeved on the hook handle (302) of the hook (3).
10. A spring-locking self-releasing hook according to claim 1, wherein Further comprising: A connecting ring (14) is arranged on the top of the mounting rack (1), and the connecting ring (14) is used for connecting a cable.