Hooks, booms and vehicles
By designing a gravity-driven hook, and utilizing the combination of the hook body, blocking part, and connecting part, the problem of easy damage to the spring is solved, realizing safe and convenient hook operation, adapting to a variety of lifting items, and reducing maintenance costs and dangers.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG GEELY HLDG GRP CO LTD
- Filing Date
- 2025-08-07
- Publication Date
- 2026-07-14
AI Technical Summary
In existing truck crane hooks, the springs are easily damaged by collisions or excessively large loads during use, increasing the danger and maintenance costs, and also causing inconvenience.
Design a hook that combines a hook body, a blocking part, and a connecting part, and uses gravity to switch states to close or open the notch, thus achieving the basic function of a hook and avoiding the use of springs.
By using gravity to switch the state of the hook, the use of springs is reduced, thereby reducing the danger and inconvenience during use. It is adaptable to harsh environments, provides multiple usage methods, and improves the durability and safety of the hook.
Smart Images
Figure CN224493465U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of lifting hooks, and more particularly to a lifting hook, a lifting boom, and a vehicle. Background Technology
[0002] A truck crane hook is the direct contact part for lifting heavy objects and is commonly used on overhead cranes or trucks used for lifting. It consists of the hook body, a blocking section, a rotating shaft, and springs. The blocking section connects to the hook body via the rotating shaft, and the connection is supported by a spring, thus achieving a closed loop structure between the blocking section and the hook body to prevent the lifted object from falling. In practical use, collisions when the object is hooked, or if the lifting lugs of the object are too large, can easily cause damage to the springs, increasing the risk of accidents, maintenance costs, and inconvenience during use. Utility Model Content
[0003] The purpose of this application is to provide a hook, a boom, and a vehicle.
[0004] According to a first aspect of the embodiments of this application, a lifting hook is provided, the lifting hook comprising:
[0005] The hook body encloses a hook space with a notch;
[0006] A blocking part is connected to the hook body, and the blocking part can be used to open or close the notch;
[0007] A connecting portion, which is connected to the blocking portion;
[0008] The rotating shaft is fixedly disposed to the hook body. The blocking part and the connecting part are respectively connected to the rotating shaft. The connecting part drives the blocking part to rotate through the rotating shaft, thereby switching between the first state and the second state.
[0009] Specifically, when the hook is in the first state, the center of gravity of the connecting part is located in the first position, and it causes the blocking part to close the notch; when the hook is in the second state, the center of gravity of the connecting part is located in the second position, and it causes the blocking part to open the notch.
[0010] Along the direction of gravity, the second position is located above the first position.
[0011] In some embodiments, the hook further includes a pivot portion, which is fixedly disposed with the hook body, and the blocking portion and the connecting portion are respectively connected to the pivot portion;
[0012] The connecting part drives the blocking part to rotate through the rotating shaft part, thereby switching between the first state and the second state.
[0013] In some embodiments, the connecting portion and the blocking portion are arranged at an angle, and the connecting portion is provided with a clearance groove, with at least a portion of the hook body disposed within the clearance groove.
[0014] In some embodiments, the angle is greater than or equal to 40° and less than or equal to 100°.
[0015] In some embodiments, the hook further includes a weight-adding portion disposed at one end of the connecting portion away from the pivot portion.
[0016] In some embodiments, the rotating shaft includes a groove, a first shaft unit, and a second shaft unit, wherein the first shaft unit and the second shaft unit are respectively disposed in the groove, and the blocking part and the connecting part are respectively connected to the first shaft unit and the second shaft unit.
[0017] In some embodiments, the blocking portion includes a first blocking unit and a second blocking unit, wherein the first blocking unit is connected to the first shaft unit and the second blocking unit is connected to the second shaft unit;
[0018] And / or,
[0019] The connecting part includes a first connecting unit and a second connecting unit, wherein the first connecting unit is connected to the first shaft unit and the second connecting unit is connected to the second shaft unit.
[0020] In some embodiments, the hook body is an arc-shaped component with a notch, and the hook body includes a first wall surface and a second wall surface, with the blocking portion connected to the first wall surface;
[0021] When the hook is in the first state, the end of the blocking part away from the first wall surface abuts against the second wall surface to close the gap; when the hook is in the second state, the end of the blocking part away from the first wall surface separates from the second wall surface to open the gap.
[0022] In some embodiments, the hook body is further provided with a protrusion disposed on the second wall surface. When the hook is in the first state, the protrusion abuts against the blocking portion to prevent the blocking portion from disengaging from the hook space.
[0023] In some embodiments, the hook further includes an elastic element disposed between the hook body and the blocking portion, for resetting the blocking portion to a first position.
[0024] According to a second aspect of the present application, a boom is provided, including a hook as described in any of the above embodiments.
[0025] According to a third aspect of the present application, a vehicle is provided, including a boom as described in the above embodiments.
[0026] The beneficial technical effects of the technical solutions provided in this application are:
[0027] The system comprises a hook body, a blocking part, and a connecting part. The hook body forms a hook space with a notch for accommodating at least part of the load. The blocking part is connected to the hook body and can be used to open or close the notch. The connecting part is connected to the blocking part. The hook can switch between a first state and a second state. When the hook is in the first state, the center of gravity of the connecting part is located in the first position, causing the blocking part to close the notch. When the hook is in the second state, the center of gravity of the connecting part is located in the second position, causing the blocking part to open the notch. The second position is located above the first position along the direction of gravity.
[0028] The usage process is as follows: When the hook is in its normal state, it is generally in the first state, where the blocking part closes the notch, and the center of gravity of the connecting part is in the first position. When loading the load, the blocking part is pressed down or the connecting part is moved to the second position along the direction of gravity, thus opening the notch. After the load is loaded into the hook space, the blocking part or connecting part is released. Due to gravity, the connecting part will naturally move back to the first position along the direction of gravity, at which point the blocking part closes the notch, thus preventing the load from falling off.
[0029] The above setup achieves the basic function of a hook without using spring components, thus avoiding the need for springs and reducing the danger and inconvenience during use. Furthermore, the process is entirely achieved through the natural force of gravity, making it simple, convenient, and well-suited for harsh environments. Attached Figure Description
[0030] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0031] Figure 1 This is a schematic diagram of the structure of a hook according to an embodiment of this application.
[0032] Figure 2 This is a structural schematic diagram of a hook from another perspective, according to an embodiment of this application.
[0033] Figure 3 This is a structural schematic diagram of a hook according to an embodiment of the present application from another perspective.
[0034] Figure 4 This is a schematic diagram illustrating the cooperation between the blocking part and the connecting part according to an embodiment of this application.
[0035] Figure 5 This is a schematic diagram showing the cooperation of the blocking part, the connecting part, and the rotating part according to an embodiment of this application.
[0036] Figure 6 This is another schematic diagram showing the engagement of the blocking part, the connecting part, and the rotating shaft part according to an embodiment of this application.
[0037] Figure 7 This is another schematic diagram showing the engagement of the blocking part, the connecting part, and the rotating shaft part according to an embodiment of this application.
[0038] Explanation of reference numerals in the attached figures
[0039] Hook 10
[0040] Hook body 100
[0041] Gap 110
[0042] First wall surface 120
[0043] Second wall 130
[0044] Protrusion 140
[0045] Hook space 150
[0046] Blocking part 200
[0047] First blocking unit 210
[0048] Second blocking unit 220
[0049] Connecting part 300
[0050] 310 clearance slot
[0051] First connecting unit 320
[0052] Second connecting unit 330
[0053] 400 rotating shaft
[0054] Tank 410
[0055] First axis unit 420
[0056] Second axis unit 430 Detailed Implementation
[0057] The technical solutions in the embodiments (or "implementations") of this application will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.
[0058] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movements between components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.
[0059] A truck crane hook is the direct contact part for lifting heavy objects and is commonly used on overhead cranes or trucks used for lifting. It consists of a hook body 100, a blocking part 200, a rotating shaft 400, and springs. The blocking part 200 is connected to the hook body 100 via the rotating shaft 400. The connection is supported by a spring, thus achieving a closed loop between the blocking part 200 and the hook body 100, preventing the lifted object from falling off. In practical use, collisions when the object is hooked, or excessively large lifting lugs, can easily damage the springs, increasing the risk of accidents, maintenance costs, and inconvenience during use.
[0060] This application discloses a hook 10, with reference to... Figure 1 , Figure 2 as well as Figure 3 As shown, the hook 10 includes a hook body 100, a blocking portion 200, a connecting portion 300, and a pivot portion 400. The hook body 100 forms a hook space 150 with a notch 110 for accommodating at least part of the load. The blocking portion 200 is connected to the hook body 100 and can be used to open or close the notch 110. The connecting portion 300 is connected to the blocking portion 200. Furthermore, the pivot portion 400 is fixedly disposed to the hook body 100, and the blocking portion 200 and the connecting portion 300 are respectively connected to the pivot portion 400. The connecting portion 300 drives the blocking portion 200 to rotate via the pivot portion 400, thereby switching between a first state and a second state.
[0061] The hook 10 can switch between a first state and a second state. When the hook 10 is in the first state, the center of gravity of the connecting part 300 is located in the first position, causing the blocking part 200 to close the notch 110. When the hook 10 is in the second state, the center of gravity of the connecting part 300 is located in the second position, causing the blocking part 200 to open the notch 110. The second position is located above the first position along the direction of gravity.
[0062] Based on the above configuration, the blocking part 200 and the connecting part 300 are connected by a pivot part 400. That is, when the connecting part 300 rotates, the blocking part 200 can rotate accordingly to open or close the notch 110.
[0063] refer to Figures 1-3 As shown, the connecting part 300 can shift its center of gravity upwards by rotating upwards, thereby opening the notch 110 in the blocking part 200. Simultaneously, it can shift its center of gravity downwards by rotating downwards, thereby closing the notch 110 in the blocking part 200. This process is achieved naturally using only gravity, making it simple and convenient.
[0064] The aforementioned lifting objects may include building materials, heavy machinery, containers, etc., and are equipped with ropes, pull ropes, etc., which are located within the hook space 150. This application can also be used for small items, as long as they can be lifted by the hook 10, they are within the scope of protection of this application. The aforementioned blocking part 200 can be an anti-slip plate, whose function is to prevent the slings (such as wire rope slings, synthetic fiber slings, shackles, etc.) suspended on the hook from accidentally slipping off during operation, thereby avoiding accidents of heavy objects falling.
[0065] The aforementioned connecting part 300 is a component with weight. Referring to the attached drawings, it can be set as a rectangular frame, and the material can be steel to prevent damage. Furthermore, its specific relative position to the hook body 100 is not limited in this embodiment, as long as it is connected to the blocking part 200 and can affect the opening or closing of the notch 110 by gravity, it is within the protection scope of this application.
[0066] The usage process of the hook 10 is as follows: In its normal state, the hook 10 is generally in the first state, i.e., the blocking part 200 closes the notch 110, and the center of gravity of the connecting part 300 is in the first position. When it is necessary to load the object, the blocking part 200 is pressed down or the connecting part 300 is moved to the second position along the direction of gravity, so that the blocking part 200 opens the notch 110. After the object is loaded into the hook space 150, the blocking part 200 or the connecting part 300 is released. Due to gravity, the connecting part 300 will naturally move to the first position along the direction of gravity, at which point the blocking part 200 closes the notch 110, thus preventing the object from falling off.
[0067] The above configuration allows the hook 10 to perform its basic functions without using spring components, thus avoiding the use of spring components and reducing the danger and inconvenience during use. Furthermore, the process is achieved entirely through the natural force of gravity, making it simple, convenient, and well-suited to harsh environments.
[0068] Furthermore, when using the spring section, the notch 110 can only be opened by pressing the blocking part 200 to compress the spring, allowing the load to be placed in the hook space 150. However, in this application, the notch 110 can be opened not only by pressing the blocking part 200, but also by moving the connecting part 300 along the direction of gravity. This method of opening the notch 110 is particularly useful in situations where pressing is inconvenient, such as with fragile or large items. In other words, this application offers more versatility compared to a conventional hook 10.
[0069] In one embodiment, reference Figures 1-4 As shown, the connecting part 300 and the blocking part 200 are set at an angle α, and the connecting part 300 is provided with a relief groove 310, with at least a portion of the hook body 100 disposed in the relief groove 310.
[0070] Based on the above settings, and referring to Figures 1-3 As shown in the structure, the clearance groove 310 allows the connecting portion 300 to surround the hook body 100, with the connecting portion 300 partially positioned behind the hook body 100. This rearward positioning of the connecting portion 300 allows for easy upward or downward pulling by the user, thus facilitating the use of the hook 10. Furthermore, the clearance groove 310 prevents collisions between the hook body 100 and the connecting portion 300, thereby improving the overall durability of the hook 10.
[0071] refer to Figures 1-4 As shown, if the angle α is too large, when the hook 10 is in the first state, the angle at which the connecting part 300 is raised is too large, thus occupying a lot of space outside the hook 10. If the angle α is too small, it is difficult to provide enough power to make the hook 10 return from the second state to the first state, that is, it is difficult to switch from the open state of the notch 110 to the closed state of the notch 110.
[0072] This application sets the aforementioned angle α to be greater than or equal to 40° and less than or equal to 100°. Within this range, on the one hand, the connecting part 300 does not occupy much space outside the hook 10. On the other hand, it can also provide sufficient power to return the hook 10 from the second state to the first state. For example, the aforementioned angle can be set to 40°, 45°, 50°, 55°, 60°, 65°, 70°, 75°, 80°, 85°, 90°, 95°, or 100°.
[0073] In one embodiment, the hook 10 further includes a weight-adding part (not shown in the figure), which is disposed at the end of the connecting part 300 away from the rotating shaft part 400.
[0074] The aforementioned weight-adding component serves two purposes. First, it provides sufficient power to the blocking part 200 to return the hook 10 from the second state to the first state, that is, to facilitate the transition of the notch 110 from the open state to the closed state. Second, the weight-adding component provides a grip for the user, making it easier for the user to lift or pull, thereby facilitating the opening of the notch 110.
[0075] In one embodiment, reference Figures 5-7 As shown, the rotating shaft portion 400 includes a groove 410, a first shaft unit 420, and a second shaft unit 430. The first shaft unit 420 and the second shaft unit 430 are respectively disposed within the groove 410. The blocking portion 200 and the connecting portion 300 are both connected to the first shaft unit 420 and the second shaft unit 430, respectively. It should be noted that the first shaft unit 420 and the second shaft unit 430 can be detachably connected, or as shown in the figure, they can be in contact without contact.
[0076] Based on the above settings, refer to Figure 1 and Figure 5 As shown, when the user needs to disassemble the blocking part 200 and the connecting part 300, they only need to pull the first shaft unit 420 and the second shaft unit 430 to both sides to deform them, so that the first shaft unit 420 and the second shaft unit 430 are disengaged from the groove 410. Then, the blocking part 200 and the connecting part 300 can be removed along the hook body 100. Similarly, when installation is required, the operation can be completed by simply reversing the steps.
[0077] Further reference Figure 6 As shown, the blocking part 200 includes a first blocking unit 210 and a second blocking unit 220, with the first blocking unit 210 connected to the first shaft unit 420 and the second blocking unit 220 connected to the second shaft unit 430. Alternatively, refer to... Figure 7 As shown, the connecting part 300 includes a first connecting unit 320 and a second connecting unit 330, wherein the first connecting unit 320 is connected to the first shaft unit 420 and the second connecting unit 330 is connected to the second shaft unit 430.
[0078] That is, in this embodiment, a first blocking unit 210 and a second blocking unit 220 are provided in conjunction with the first shaft unit 420 and the second shaft unit 430, or a first connecting unit 320 and a second connecting unit 330 are provided in conjunction with them.
[0079] Taking the first blocking unit 210 and the second blocking unit 220 as examples, under the above settings, when the first shaft unit 420 and the second shaft unit 430 are pulled and deformed to both sides, the first blocking unit 210 and the second blocking unit 220 naturally separate to both sides, and the whole can be removed from one side of the first blocking unit 210 and the second blocking unit 220.
[0080] Similarly, the disassembly process of the first connecting unit 320 and the second connecting unit 330 is roughly the same as that of the first blocking unit 210 and the second blocking unit 220. That is, after the first shaft unit 420 and the second shaft unit 430 are pulled and deformed to both sides, the first connecting unit 320 and the second connecting unit 330 naturally separate to both sides, and at this time the whole can be removed from one side of the first connecting unit 320 and the second connecting unit 330.
[0081] Based on the disassembly process described above, the installation process is simply the reverse of the above steps. This process is simple and convenient, allowing for easy disassembly and installation.
[0082] Of course, in other embodiments, the first blocking unit 210 and the second blocking unit 220, as well as the first connecting unit 320 and the second connecting unit 330, can be provided simultaneously. In this case, the blocking part 200, the connecting part 300, and the first shaft unit 420 and the second shaft unit 430 can be divided into two halves as a whole, which allows for better disassembly and installation.
[0083] In one embodiment, reference Figures 1-3 The hook body 100 is an arc-shaped component with a notch 110, and the hook body 100 includes a first wall surface 120 and a second wall surface 130, with a blocking part 200 connected to the first wall surface 120. When the hook 10 is in the first state, the end of the blocking part 200 away from the first wall surface 120 abuts against the second wall surface 130 to close the notch 110; when the hook 10 is in the second state, the end of the blocking part 200 away from the first wall surface 120 separates from the second wall surface 130 to open the notch 110.
[0084] Based on the above configuration, the cooperation between the first wall surface 120, the second wall surface 130, and the blocking part 200 can achieve a good sealing and opening effect. Furthermore, since the blocking part 200 rests against the second wall surface 130 when closed, it is difficult to be directly damaged, thus improving its stability.
[0085] In one embodiment, reference Figures 1-3 As shown, the hook body 100 is also provided with a protrusion 140, which is disposed on the second wall surface 130. When the hook 10 is in the first state, the protrusion 140 abuts against the blocking part 200 to prevent the blocking part 200 from disengaging from the hook space 150.
[0086] The protrusion 140 serves two purposes: firstly, it acts as a reinforcing rib to strengthen the hook body 100; secondly, it increases the difficulty of preventing the blocking part 200 from disengaging from the hook space 150, thereby improving the stability of the hook 10 and enhancing its safety in use.
[0087] In one embodiment, the hook 10 further includes an elastic element (not shown in the figure), which is disposed between the hook body 100 and the blocking portion 200 for resetting the blocking portion 200 to a first position.
[0088] This embodiment includes an elastic element that works in conjunction with the connecting portion 300 to reset the blocking portion 200 to the first position. Furthermore, this elastic element serves as a redundancy feature; when the connecting portion 300 is damaged, the elastic element can function as the hook 10 independently. Similarly, when the elastic element is damaged, the connecting portion 300 can function as the hook 10 independently, thereby increasing the overall stability of the hook 10.
[0089] This application also proposes a boom that includes the hook 10 described in any of the above embodiments. The boom can be a hydraulic telescopic boom, a folding boom, a multi-section folding boom, or a telescopic ladder, etc.
[0090] In addition, this application proposes a production line for lifting products being transported on the production line, thereby increasing the efficiency of optimizing the product distribution process and ensuring that the production line can operate continuously and efficiently.
[0091] This application also proposes a vehicle comprising the aforementioned boom. In one embodiment, the vehicle may be a truck crane, all-terrain crane, crawler crane, or tower crane, etc. These vehicles are widely used in engineering construction, logistics transportation, disaster relief and rescue, and special operations. They can be selected based on actual needs (such as lifting capacity, mobility, and working height). In another embodiment, the vehicle is an autonomous vehicle, wherein its maneuverability can be controlled without direct input from a human driver.
[0092] It should be noted that the technical solutions or features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.
Claims
1. A lifting hook, characterized in that, The hook includes: The hook body encloses a hook space with a notch; A blocking part is connected to the hook body, and the blocking part can be used to open or close the notch; A connecting portion, which is connected to the blocking portion; The rotating shaft is fixedly disposed to the hook body. The blocking part and the connecting part are respectively connected to the rotating shaft. The connecting part drives the blocking part to rotate through the rotating shaft, thereby switching between a first state and a second state. Specifically, when the hook is in the first state, the center of gravity of the connecting part is located in the first position, and it causes the blocking part to close the notch; when the hook is in the second state, the center of gravity of the connecting part is located in the second position, and it causes the blocking part to open the notch. Along the direction of gravity, the second position is located above the first position.
2. The hook as described in claim 1, characterized in that, The connecting part and the blocking part are arranged at an angle, and the connecting part is provided with a relief groove, with at least a portion of the hook body disposed in the relief groove.
3. The hook as described in claim 2, characterized in that, The angle is greater than or equal to 40° and less than or equal to 100°.
4. The hook as described in claim 1, characterized in that, The hook also includes a weight-increasing part, which is located at the end of the connecting part away from the rotating shaft.
5. The hook as described in claim 1, characterized in that, The rotating shaft includes a groove, a first shaft unit, and a second shaft unit. The first shaft unit and the second shaft unit are respectively disposed in the groove. The blocking part and the connecting part are respectively connected to the first shaft unit and the second shaft unit.
6. The hook as described in claim 5, characterized in that, The blocking part includes a first blocking unit and a second blocking unit, wherein the first blocking unit is connected to the first shaft unit and the second blocking unit is connected to the second shaft unit; And / or, The connecting part includes a first connecting unit and a second connecting unit, wherein the first connecting unit is connected to the first shaft unit and the second connecting unit is connected to the second shaft unit.
7. The hook as described in claim 1, characterized in that, The hook body is an arc-shaped part with a notch, and the hook body includes a first wall and a second wall, and the blocking part is connected to the first wall; When the hook is in the first state, the end of the blocking part away from the first wall surface abuts against the second wall surface to close the gap; when the hook is in the second state, the end of the blocking part away from the first wall surface separates from the second wall surface to open the gap.
8. The hook as described in claim 7, characterized in that, The hook body is also provided with a protrusion, which is disposed on the second wall surface. When the hook is in the first state, the protrusion abuts against the blocking part to prevent the blocking part from disengaging from the hook space.
9. The hook as described in claim 1, characterized in that, The hook also includes an elastic element disposed between the hook body and the blocking part, for resetting the blocking part to a first position.
10. A crane boom, characterized in that, Includes the hook as described in any one of claims 1-9.