Self-releasing lifting hook
By installing counterweights and springs on both sides of the hook main body, combined with movable pins, the automatic constraint and locking of the sling is achieved, the safety hazards and inconvenience of operation of the existing self-detached hook are solved, and the lifting efficiency and safety are improved.
Patent Information
- Application Number
- CN202422803759.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-11-18
AI Technical Summary
The existing self-detachment hooks have safety risks to prevent accidental dehook of the sling, inconvenient hanging the sling requires manual operation, and difficult to remove themselves when the sling weighs a large amount.
A self-detachment hook is designed. By symmetrically installing counterweights on both sides of the hook main body, combining spring sheets and movable pins, the automatic restraint and locking of the sling is achieved. It is equipped with an upper sling ring and the hook side plate to form a closed ring to ensure stability of the sling and is equipped with screws and nuts for locking.
It improves lifting safety, simplifies the operation process, reduces manpower consumption, adapts to the needs of slings with different weights, improves lifting efficiency, and avoids safety accidents caused by slings falling off.
Smart Images
Figure CN223268218U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hooks, in particular to a self-detaching hook. Background Art
[0002] In the current market, there is a self-detachable hook used in various industries. With the widespread use of drones in various industries, the use of self-detachable hooks is not limited to factories. They are used in conjunction with ordinary civilian drones and play a great role in material transportation, mountain farming and other industries.
[0003] With the continuous advancement of technology, traditional logistics and transportation methods are undergoing unprecedented changes. Low-altitude vertical transportation, with its high efficiency, convenience, and energy-saving characteristics, is becoming the mainstream trend of future logistics. Among them, drone lifting is a shining pearl in the low-altitude economy.
[0004] Drone lifting not only breaks the spatial limitations of traditional logistics and transportation, but also achieves a qualitative leap in efficiency and completeness. It transforms logistics and transportation from traditional ground transportation mode to low-altitude and fast transportation, actively improves the efficiency and flexibility of cargo transportation, and becomes a powerful assistant in the low-altitude economic era.
[0005] The self-detachable hook can be installed on a general-purpose drone to transport goods to a fixed point without the need for personnel to wait at the location, and has a wide range of applications.
[0006] There are some common problems with the self-detaching hooks currently sold on the market: 1. There is no design to prevent the sling from accidentally unhooking, which poses a certain safety hazard; 2. It is inconvenient to hang the sling and it needs to be held by hand. The hook may automatically flip over before it is lifted; 3. When the weight of the sling is slightly larger, it may not be possible to achieve self-detachment smoothly. Utility Model Content
[0007] In view of the above problems, the present application provides a self-detaching hook to improve safety.
[0008] To achieve the above objectives, the present application provides a self-detaching hook, comprising:
[0009] Hook body;
[0010] There are two sets of counterweights, which are symmetrically fixed on both sides of the hook body. The counterweights can ensure that the hook body can be reversed smoothly. After adding the counterweights, the hook body can better overcome the deadweight of the sling itself and reverse, thereby achieving smooth self-detachment of the sling;
[0011] An upper lifting ring, the upper lifting ring being fixedly mounted on the top end of the hook body;
[0012] Hook side plates, the hook side plates are in two groups, the two groups of hook side plates are symmetrically distributed on both sides of the hook body, and the hook side plates are rotatably connected to the hook body;
[0013] Spring sheets, there are two groups of spring sheets, and the two groups of spring sheets are respectively located on both sides of the hook side plates.
[0014] The technical solution of the embodiment of the present application also includes:
[0015] An installation pin is provided, wherein the hook body is connected to the hook side plate via the installation pin, and the top end of the spring sheet is connected to the hook side plate and the upper lifting ring via the installation pin;
[0016] A movable pin, wherein the bottom end of the spring sheet is connected to the hook side plate via the movable pin;
[0017] A screw rod is used to connect the counterweight block and the hook body;
[0018] A nut is used to cooperate with the mounting pin, the movable pin and the screw for locking.
[0019] In the technical solution of the embodiment of the present application, there are two groups of movable pins, and the two groups of movable pins are respectively used to fix the two groups of spring sheets. The spring sheets and the movable pins can limit the range of motion of the hook body, so that the sling can be automatically restrained after being hung before lifting, without the need for manual control, thereby simplifying the operation process and reducing manpower consumption.
[0020] In the technical solution of the embodiment of the present application, a curved corner is provided on the surface of the hook side plate. After the sling is hung on the hook body, a closed ring is formed between the hook side plate and the hook body to ensure that the sling will not fall off easily.
[0021] In the technical solution of the embodiment of the present application, a pit is provided on the surface of the hook body. After the hook body is hung with a sling, the movable pin is abutted against the pit through the spring sheet. The pit is used to fix the hook body to prevent the hook body from reversing under the action of gravity. When lifting, under the action of the weight of the cargo, the hook body is subjected to force and is free from the restriction of the movable pin, that is, it becomes a free state.
[0022] In the technical solution of the embodiment of the present application, the model of the screw is M10*40, and there are seven groups of nuts, of which five groups of nuts are of M10 model, and the other two groups of nuts are of M5 model.
[0023] In the technical solution of the embodiment of the present application, the pin shaft hole in the middle of the hook body is an oblong hole.
[0024] Different from the existing technology, the above technical solution ensures that the sling can be stably fixed on the hook body during the lifting process by adding an anti-roping unhooking device, which can avoid safety accidents caused by the sling falling off and effectively improve safety. At the same time, a movable pin and a spring sheet are added. The spring sheet and the movable pin can limit the movement of the hook body. After the sling is hung before lifting, the sling can be automatically restrained without manual control, thereby simplifying the operation process and reducing manpower consumption. In addition, a counterweight block is added during use to make the lifting operation more efficient and adapt to the requirements of slings of different weights. Even if the sling is slightly heavy, the sling can be smoothly unhooked from the hook body, thereby improving the lifting efficiency. At the same time, the structure is simple to manufacture and low in price, which can save the use cost to a certain extent.
[0025] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference numerals are used throughout the drawings to represent the same components. In the drawings:
[0027] Figure 1 A schematic diagram of a self-detaching hook according to a specific embodiment;
[0028] Figure 2 A side view of a self-detaching hook according to a specific embodiment;
[0029] Figure 3 This is a structural diagram of the hook body described in the specific implementation method;
[0030] Figure 4 This is a structural diagram of the hook side plate described in the specific implementation method;
[0031] Figure 5 This is a structural diagram of the spring sheet described in the specific implementation method;
[0032] Figure 6 A side view of the spring sheet described in the specific embodiment;
[0033] Figure 7 It is an exploded view of a self-detaching hook described in a specific embodiment.
[0034] Description of reference numerals:
[0035] 1. Hook side plate; 2. Hook body; 3. Upper lifting ring; 4. Mounting pin; 5. Movable pin; 6. Spring leaf; 7. Counterweight; 8. Screw; 9. Nut; 10. Pit; 11. Pin hole. DETAILED DESCRIPTION
[0036] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.
[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.
[0038] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.
[0039] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.
[0040] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.
[0041] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).
[0042] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.
[0043] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.
[0044] See also Figures 1 to 7 , this embodiment is a self-detaching hook, comprising:
[0045] Hook body 2;
[0046] There are two sets of counterweights 7, which are symmetrically fixed on both sides of the hook body 2;
[0047] An upper lifting ring 3, the upper lifting ring 3 is fixedly mounted on the top of the hook body 2;
[0048] Hook side plates 1, there are two groups of hook side plates 1, the two groups of hook side plates 1 are symmetrically distributed on both sides of the hook body 2, and the hook side plates 1 are rotatably connected to the hook body 2;
[0049] Spring leaves 6, there are two groups of spring leaves 6, and the two groups of spring leaves 6 are respectively located on both sides of the hook side plate 1;
[0050] The mounting pin 4 is connected between the hook body 2 and the hook side plate 1 through the mounting pin 4, and the top end of the spring leaf 6 is connected to the hook side plate 1 and the upper lifting ring 3 through the mounting pin 4;
[0051] A movable pin 5 is provided, wherein the bottom end of the spring sheet 6 is connected to the hook side plate 1 via the movable pin 5;
[0052] Screw 8, the counterweight 7 is connected to the hook body 2 via the screw 8;
[0053] The nut 9 is used to cooperate with the mounting pin 4, the movable pin 5 and the screw 8 for locking.
[0054] The hook body 2 is the core component of the self-detaching hook, and is used to carry and fix the object to be lifted.
[0055] The two sets of counterweights 7 are symmetrically mounted on both sides of the hook body 2 , which helps to provide additional stability and balance in certain situations.
[0056] The upper lifting ring 3 is fixedly mounted on the top of the hook body 2 and serves as an interface for connecting a lifting device.
[0057] The two groups of hook side plates 1 are respectively located on both sides of the hook body 2 and are symmetrically distributed therewith. The hook side plates 1 are connected to the hook body 2 through rotation so that the hook side plates 1 can rotate around the hook body 2.
[0058] The two groups of spring sheets 6 are respectively located on both sides of the hook side plate 1 and are used to provide necessary elastic force to help the hook side plate 1 return to its initial position.
[0059] When the lifting weight is relatively light, the hook side plate 1 and the hook body 2 can be made of lightweight materials, such as super-strong aluminum, to reduce the overall weight of the equipment.
[0060] The spring sheet 6 has a certain pre-tightening force when installed, so in the absence of external force, the spring sheet 6 will also exert a certain force on the movable pin 5.
[0061] When the hook body 2 is hung with a sling, the hook body 2 is rotated to close the hook side plate 1. At this time, the movable pin 5, under the action of the spring sheet 6, presses against the recess 10 on the hook body 2, so that the hook body 2 can be fixed without a load, so as not to flip or move due to gravity.
[0062] During lifting, the weight of the cargo acts on the hook body 2, generating a downward force, which overcomes the preload of the spring sheet 6, thereby causing the movable pin 5 to disengage from the recess 10 of the hook body 2. At this time, the hook body 2 becomes free, i.e., moves along with the lifting of the cargo.
[0063] Once the cargo is put down and gravity disappears, the preload of the spring sheet 6 pushes the movable pin 5 into the recess 10 again, locking the hook body 2 again to ensure that it remains stable when not in use.
[0064] See also Figures 1 to 7 There are two groups of movable pins 5, and the two groups of movable pins 5 are used to fix two groups of spring leaves 6 respectively, which increases the stability of the overall structure. By fixing the two groups of spring leaves 6 on both sides of the movable pins 5, maintenance and inspection are facilitated to ensure that the spring leaves 6 are not worn or damaged, thereby extending the service life of the hook body 2 and reducing the possibility of failure.
[0065] See also Figures 1 to 7 When the hook body 2 is hung on the sling, the tension of the sling will drive the movable pin 5 to be subjected to an upward force, thereby overcoming the resistance of the spring sheet 6 and moving the movable pin 5 upward. At this time, the gap between the movable pin 5 and the pit 10 is reduced until the two are in close contact, thereby achieving automatic locking. It can ensure that the hook body 2 remains stable when bearing heavy objects and avoid accidental falling off. At the same time, when the hook body 2 is subjected to excessive pressure, the movable pin 5 will also be subjected to greater pressure, causing the spring sheet 6 to deform. If the tension exceeds a certain range, the spring sheet 6 may break, causing the movable pin 5 to lose support, thereby causing the hook body 2 to be automatically released, which can avoid safety accidents caused by overload to a certain extent.
[0066] See also Figures 1 to 7 The surface of the hook side plate 1 is provided with a curved angle. After the hook body 2 is hung with the sling, a closed ring is formed between the hook side plate 1 and the hook body 2, which can effectively prevent the sling from accidentally falling off during the lifting process or the hoisting process, thereby enhancing the safety of the device and reducing the risk of accidents caused by the sling falling off. When the hook body 2 is hung with the sling, the sling will move along the surface of the hook body 2 to the position of the hook side plate 1. Since the surface of the hook side plate 1 is provided with a curved angle, the sling is subjected to a certain resistance during the movement, thereby increasing the friction between the sling and the hook side plate 1, which can effectively prevent the sling from sliding or falling off due to external force during the lifting process or the hoisting process.
[0067] See also Figures 1 to 7The pin hole 11 in the middle of the hook body 2 is an oblong hole. Setting the pin hole 11 as an oblong hole can be used for limiting to prevent the movable pin 5 from rotating, so that the interactivity can always maintain a stable position during operation and will not be offset or rotated due to external force, thereby improving the stability of the overall structure. The model of the screw 8 is M10*40, and there are seven groups of nuts 9, of which five groups of nuts 9 are M10, and the other two groups of nuts 9 are M5. They have high strength and rigidity, can withstand large tension and pressure, and are suitable for various lifting occasions.
[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.
Claims
1. A self-detaching hook, characterized in that: include: Hook body; There are two sets of counterweights, which are symmetrically fixed on both sides of the hook body. An upper lifting ring, the upper lifting ring being fixedly mounted on the top end of the hook body; Hook side plates, the hook side plates are in two groups, the two groups of hook side plates are symmetrically distributed on both sides of the hook body, and the hook side plates are rotatably connected to the hook body; Spring sheets, there are two groups of spring sheets, and the two groups of spring sheets are respectively located on both sides of the hook side plates.
2. A self-detaching hook according to claim 1, characterized in that: Also includes: An installation pin is provided, wherein the hook body is connected to the hook side plate via the installation pin, and the top end of the spring sheet is connected to the hook side plate and the upper lifting ring via the installation pin; A movable pin, wherein the bottom end of the spring sheet is connected to the hook side plate via the movable pin; A screw rod is used to connect the counterweight block and the hook body; A nut is used to cooperate with the mounting pin, the movable pin and the screw for locking.
3. A self-detaching hook according to claim 2, characterized in that: There are two groups of movable pins, and the two groups of movable pins are used to fix the two groups of spring sheets respectively.
4. A self-detaching hook according to claim 3, characterized in that: The surface of the hook side plate is provided with a curved corner, and after the hook main body is hung with a sling, a closed ring is formed between the hook side plate and the hook main body.
5. A self-detaching hook according to claim 4, characterized in that: A concave pit is provided on the surface of the hook body. After the hook body is hung with a sling, the movable pin abuts against the concave pit through the spring sheet.
6. The self-detaching hook according to claim 5, characterized in that: The model of the screw is M10*40, and there are seven groups of nuts, five of which are M10 in model, and the other two groups are M5 in model.
7. The self-detaching hook according to claim 6, characterized in that: The pin shaft hole in the middle of the hook body is an oblong hole.