Lifting hook body and lifting hook assembly
By designing a waterproof surface with a higher inner surface and a lower outer surface, along with an oil injection channel structure on the hook body, the problem of hook movement obstruction caused by contaminant accumulation is solved, improving the stability and reliability of the hook assembly and extending its service life.
Patent Information
- Application Number
- CN202520342120.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-02-28
AI Technical Summary
In harsh environments, the hook device of engineering lifting equipment is prone to accumulating pollutants, which can obstruct the pivoting movement of the hook, affect the normal operation of the equipment, and create safety hazards.
The upper crossbeam of the hook body is designed with a waterproof surface that is higher on the inside and lower on the outside. Combined with the upper and lower oil injection channels and thrust bearing structure, it prevents contaminants from entering the hook. The hinged design of the connecting screw and hook shank improves the stability and flexibility of the hook assembly.
It effectively prevents contaminants from entering the hook, extends its service life, improves the reliability and load-bearing capacity of the hook assembly, and ensures normal operation under complex working conditions.
Smart Images
Figure CN223659633U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of engineering lifting equipment, specifically, it relates to a hook body and a hook assembly. Background Technology
[0002] Construction lifting equipment typically uses hook devices to hook heavy objects for lifting and moving operations. Generally, a hook device includes a hook and a crossbeam. The hook is engaged in the crossbeam and can be pivotally mounted, allowing the hook device to easily hook heavy objects from various directions. However, the working environment of construction lifting equipment is usually harsh, and rainwater and other contaminants can easily enter the interior of the hook device through gaps (such as...). Figure 1 As shown, long-term accumulation of pollutants may hinder the pivoting motion of the hook, thereby affecting the normal operation of the engineering lifting equipment and causing safety hazards. Utility Model Content
[0003] The purpose of this application is to provide a hook body and hook assembly to prevent external contaminants such as rainwater from entering the interior of the hook assembly and to improve the reliability of the hook assembly.
[0004] To achieve the above objectives, this application provides a hook body, which includes:
[0005] Side panels arranged at horizontal intervals;
[0006] The upper crossbeam is fixed at both ends to the side uprights on both sides, and the upper surface of the upper crossbeam forms a waterproof surface that is higher on the inside and lower on the outside.
[0007] In some embodiments, a waterproof boss is formed at the upper end of the upper crossbeam, and the inner boss surface of the waterproof boss is higher than the outer boss surface.
[0008] In some embodiments, the outer boss surface of the waterproof boss is not lower than the top surface of the side panel.
[0009] In some embodiments, the upper crossbeam includes:
[0010] Through mounting holes for installing connecting screws;
[0011] The upper oil injection channel extends downward from the upper end of the upper crossbeam and connects with the through mounting hole.
[0012] In some embodiments, the hook body further includes:
[0013] The lower crossbeam is fixed at both ends to the side uprights on both sides, and the lower crossbeam has a vertical through hinge hole.
[0014] In some embodiments, the lower crossbeam includes:
[0015] The oil injection channel extends upward from the lower end face of the lower crossbeam and connects with the hinge hole.
[0016] This application also protects a hook assembly, which includes the hook body described above.
[0017] In some embodiments, the hook assembly further includes:
[0018] The connecting screw extends downwards and connects to the upper crossbeam;
[0019] The hook nut is screwed onto the lower end of the connecting screw rod;
[0020] The first thrust bearing is located between the hook nut and the upper crossbeam.
[0021] In some embodiments, the hook assembly further includes:
[0022] The hook shank extends upwards and connects to the lower crossbeam of the hook body;
[0023] The hook shank nut is screwed onto the upper end of the hook shank.
[0024] The second thrust bearing is located between the hook nut and the lower crossbeam.
[0025] In some embodiments, the hook assembly further includes:
[0026] The counterweight is arranged in a sleeve-like shape around the periphery of the hook body;
[0027] Connecting bolts, which pass laterally through the counterweight and hook body.
[0028] Through the above technical solution, the hook body provided in this application embodiment has the following beneficial effects:
[0029] In the technical solution of this application, by designing the upper end face of the upper crossbeam as a waterproof surface with a higher inner surface and a lower outer surface, it is possible to effectively prevent rainwater and other external pollutants from accumulating on the upper end face and entering the internal structure of the hook body. This avoids problems such as corrosion and wear of internal parts due to moisture or contamination, thus extending the service life of the hook body. In addition, the structural design of fixing both ends of the upper crossbeam to the side plates on both sides not only enhances the overall stability of the hook body, but also improves the load-bearing capacity and deformation resistance of the hook body, enabling the hook body to maintain high reliability even under complex working conditions.
[0030] Other features and advantages of the embodiments of this application will be described in detail in the following detailed description section. Attached Figure Description
[0031] The accompanying drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the following detailed description to explain the embodiments of this application, but do not constitute a limitation on the embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings:
[0032] Figure 1 This is a structural schematic diagram of a prior art hook device;
[0033] Figure 2 This is a structural schematic diagram of a hook body according to a specific embodiment of this application;
[0034] Figure 3 For assembly Figure 2 A schematic diagram of the hook assembly in the hook body.
[0035] Explanation of reference numerals in the attached figures
[0036] S clearance B1 first thrust bearing
[0037] B2 Second Thrust Bearing P1 First Anti-rotation Bolt
[0038] P2 Second anti-rotation bolt; P3 Connecting bolt
[0039] 100 Connecting rod 210 Side plate
[0040] 220 Mounting cavity 300 Upper crossbeam
[0041] 310 Through mounting hole; 311 Waterproof boss
[0042] 320 Upper oil filling channel 400 Lower crossbeam
[0043] 340 First bearing housing space 411 Boss
[0044] 410 hinge hole 500 hook shank
[0045] 420 Oil inlet channel 700 Hook shank nut
[0046] 440 Second bearing housing space 800 Counterweight
[0047] 600 hook nut Detailed Implementation
[0048] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this application.
[0049] The hook body and hook assembly according to this application are described below with reference to the accompanying drawings.
[0050] This application discloses a novel hook body, such as Figure 2 and Figure 3 As shown, in one specific embodiment, the hook body includes:
[0051] The side panels 210 are arranged at horizontal intervals;
[0052] The upper crossbeam 300 is fixed at both ends to the side uprights 210 on both sides. The upper surface of the upper crossbeam 300 forms a waterproof surface that is higher on the inside and lower on the outside.
[0053] Compared to existing technologies, such as Figure 1 The hook body shown is horizontally arranged at its upper end, forming a waterproof surface that is higher on the inside and lower on the outside. This prevents rainwater and other external contaminants from accumulating on the upper end and entering the internal structure of the hook body, extending its service life and making the hook body design suitable for various environments, thereby improving its applicability and reliability under different working conditions. Furthermore, the upper crossbeam 300 connects to the side uprights 210 at both ends to form a frame structure, greatly improving the overall stability, load-bearing capacity, and deformation resistance of the hook body. The connection method between the upper crossbeam 300 and the side uprights 210 is not limited to... Figure 2 The two ends of the upper crossbeam 300 shown are respectively inserted into the fixing holes of the side upright plates 210 on both sides, or the upper crossbeam 300 and the side upright plates 210 can be integrally formed.
[0054] In this embodiment, such as Figure 2 As shown, a waterproof boss 311 can be formed at the upper end of the upper crossbeam 300, with the inner boss surface of the waterproof boss 311 being higher than the outer boss surface. The outer boss surface can reduce the amount of external contaminants such as rainwater and dust deposited on the upper end surface of the upper crossbeam 300, while the inner boss surface, which is higher than the outer boss surface, can further isolate external contaminants such as rainwater and dust from the internal inlet of the hook body. This design is not only easy to follow but also convenient to manufacture. Of course, those skilled in the art will understand that the upper end of the upper crossbeam 300 is not limited to forming the aforementioned waterproof boss 311, but can also be formed into other structures such as a cone or a sphere.
[0055] In this embodiment, such as Figure 2 As shown, the outer surface of the waterproof boss 311 can be no lower than the top surface of the side plate 210. This prevents external contaminants such as rainwater and dust from accumulating on the upper surface of the waterproof boss 311, thereby further improving the applicability and reliability of the hook body under different working conditions.
[0056] In this embodiment, such as Figure 2As shown, the upper crossbeam 300 may include:
[0057] Through mounting hole 310, for mounting connecting screw 100;
[0058] The upper oil injection channel 320 extends downward from the upper end of the upper crossbeam 300 and connects with the through mounting hole 310.
[0059] See Figure 2 and Figure 3 Thus, by means of the connecting screw 100 hinged to the upper crossbeam 300, the hook body can be fixed and its pivoting relative to the connecting screw 100 can be achieved, thereby facilitating the hook assembly to hook onto heavy objects from all directions. Furthermore, the operator can inject lubricating grease through the upper oil channel 320 to ensure the relative pivoting movement between the connecting screw 100 and the upper crossbeam 300. In the prior art, such as... Figure 1 As shown, the oil filling channel is horizontally arranged, so each time lubricating grease is added, the outer peripheral counterweight of the hook device must be removed first to expose the oil filling port, which is not conducive to maintenance. Compared with the prior art, the oil filling port of the upper oil filling channel 320 is located on the upper end face of the upper crossbeam 300. As an example, after the hook body and the counterweight 800 are assembled together, oil can be directly added from the upper end face without disassembling the counterweight 800, which is convenient for installation, inspection and maintenance, and also convenient for adding lubricating grease.
[0060] In this embodiment, such as Figure 2 As shown, the hook body may further include: a lower crossbeam 400, with both ends fixed to side uprights 210 on both sides, and the lower crossbeam 400 having a vertically penetrating hinge hole 410. As an example, the hook shank 500 can be hinged to the lower crossbeam 400 through the hinge hole 410, thereby further improving the flexibility of the hook assembly and facilitating hooking the hook assembly with heavy objects from various directions. For example, Figure 2 and Figure 3 As shown, the hinge hole 410 of the lower crossbeam 400 can protrude downwards to form a boss 411, thereby enhancing the isolation effect between the external environment and the hook body. Of course, the connection method between the lower crossbeam 400 and the side upright plate 210 is not limited to... Figure 2 The lower crossbeam 400 shown is snapped and fixed at both ends to the middle of the side uprights 210 on both sides, or the lower crossbeam 400 and the side uprights 210 can be integrally formed.
[0061] In this embodiment, such as Figure 2 As shown, the lower crossbeam 400 may include a lower oil inlet channel 420 extending upward from the lower end face of the lower crossbeam 400 and communicating with the hinge hole 410. As an example, an operator can directly inject lubricating grease through the lower oil inlet channel 420 to ensure relative pivoting movement between the hook shank 500 and the lower crossbeam 400 without disassembling the counterweight 800.
[0062] This application discloses a novel hook assembly, such as Figure 3 As shown, a hook assembly in one specific embodiment includes the hook body described above. Obviously, this hook assembly also possesses all the technical effects of the hook body described above, so they will not be repeated here.
[0063] In this embodiment, such as Figure 3 As shown, the hook assembly may also include:
[0064] The connecting screw 100 is downwardly connected to the upper crossbeam 300;
[0065] The hook nut 600 is screwed to the lower end of the connecting screw 100;
[0066] The first thrust bearing B1 is located between the hook nut 600 and the upper crossbeam 300.
[0067] This not only enables relative pivotal movement between the connecting screw 100 and the hook body, but also ensures the load-bearing capacity of the hook assembly and allows the hook body to rotate flexibly under high load conditions. Specifically, the hook nut 600 is located in the mounting cavity 220 formed by the side plates 210 and is pivotally connected to the lower end of the connecting screw 100. Since the hook assembly needs to withstand a large load, the first thrust bearing B1 is placed between the upper wall of the hook nut 600 and the lower wall of the upper crossbeam 300. The hook nut 600 and the upper crossbeam 300 together form the first bearing receiving space 340, which is connected to the upper oil injection channel 320, allowing lubricating grease to lubricate the first thrust bearing B1. In addition, due to the waterproof surface, the probability of water ingress into the first thrust bearing B1 is greatly reduced, thus greatly improving the service life of the first thrust bearing B1. To ensure the connection strength between the hook nut 600 and the connecting screw 100, a first anti-rotation bolt P1 can be installed that transversely connects the hook nut 600 and the connecting screw 100. Of course, the methods for strengthening the connection strength between the connecting screw 100 and the hook nut 600 are not limited to... Figure 3 The first anti-rotation bolt P1 is used to connect the two parts, or the connecting screw 100 and the hook nut 600 can be vertically connected to each other.
[0068] In this embodiment, such as Figure 3 As shown, the hook assembly may also include:
[0069] The hook shank 500 is connected upward through the lower crossbeam 400 of the hook body;
[0070] Hook shank nut 700 is screwed onto the upper end of hook shank 500;
[0071] The second thrust bearing B2 is located between the hook nut 700 and the lower crossbeam 400.
[0072] This not only enables relative pivotal movement between the hook shank 500 and the hook body, but also ensures the load-bearing capacity of the hook assembly, allowing the hook shank 500 to rotate flexibly even under high load conditions. Specifically, the hook shank nut 700 is located in the mounting cavity 220 formed by the side uprights 210 and is pivotally connected to the upper end of the hook shank 500. Since the hook assembly needs to withstand a large load, the second thrust bearing B2 is placed between the lower wall surface of the hook shank nut 700 and the upper wall surface of the lower crossbeam 400. The hook shank nut 700 and the lower crossbeam 400 together form the second bearing receiving space 440, which is connected to the lower oil injection channel 420, allowing lubricating grease to lubricate the second thrust bearing B2. Furthermore, due to the waterproof surface, rainwater is less likely to continue to seep into the second thrust bearing B2 from the hook nut 600, thus ensuring the service life of the second thrust bearing B2. To enhance the connection strength between the hook shank nut 700 and the hook shank 500, a second anti-rotation bolt P2 can be provided that transversely connects the hook shank nut 700 and the hook shank 500. Of course, the methods for strengthening the connection strength between the hook shank nut 700 and the hook shank 500 are not limited to... Figure 3 The second anti-rotation bolt P2 shown is used for connection, or the hook nut 700 and hook 500 can be vertically connected to each other.
[0073] In this embodiment, such as Figure 3 As shown, the hook assembly may also include:
[0074] The counterweight is 800, arranged in a sleeve shape around the perimeter of the hook body;
[0075] Connecting bolt P3, which transversely connects the counterweight 800 and the hook body.
[0076] Thus, the counterweight 800 not only protects the outer perimeter of the hook body but also increases the overall weight of the hook assembly, thereby increasing the lowering speed of the hook assembly and enhancing its wind resistance, reducing the impact of wind on its stability and ensuring operational safety. Furthermore, the counterweight 800 and the hook body are connected by connecting bolt P3, improving the structural strength of the hook assembly. The upper surface of the counterweight 800 should be lower than the upper surface of the hook body to avoid both forming a sedimentation surface that is higher on the outside and lower on the inside, which would affect the anti-deposition effect of the waterproof surface. Of course, the connection method between the counterweight 800 and the hook body is not limited to the connection via connecting bolt P3 shown in the diagram; it could also be a snap-fit connection, etc.
[0077] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0078] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0079] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
Claims
1. A hook body, characterized in that, The hook body includes: Laterally spaced side panels (210); The upper crossbeam (300) is fixed at both ends to the side uprights (210) on both sides, and the upper end surface of the upper crossbeam (300) is formed as a waterproof surface that is higher on the inside and lower on the outside.
2. The hook body according to claim 1, characterized in that, A waterproof boss (311) is formed at the upper end of the upper crossbeam (300), and the inner boss surface of the waterproof boss (311) is higher than the outer boss surface.
3. The hook body according to claim 2, characterized in that, The outer surface of the waterproof boss (311) is not lower than the top surface of the side plate (210).
4. The hook body according to claim 1, characterized in that, The upper crossbeam (300) includes: Through mounting hole (310) for mounting connecting screw; The upper oil injection channel (320) extends downward from the upper end face of the upper crossbeam (300) and communicates with the through mounting hole (310).
5. The hook body according to any one of claims 1 to 4, characterized in that, The hook body also includes: The lower crossbeam (400) is fixed at both ends to the side uprights (210) on both sides, and the lower crossbeam (400) is provided with a vertical through hinge hole (410).
6. The hook body according to claim 5, characterized in that, The lower crossbeam (400) includes: The oil injection channel (420) extends upward from the lower end face of the lower crossbeam (400) and communicates with the hinge hole (410).
7. A hook assembly, characterized in that, The hook assembly includes a hook body according to any one of claims 1 to 6.
8. The hook assembly according to claim 7, characterized in that, The hook assembly also includes: A connecting screw is downwardly and through-connected to the upper crossbeam (300); A hook nut (600) is screwed onto the lower end of the connecting screw rod; The first thrust bearing (B1) is disposed between the hook nut (600) and the upper crossbeam (300).
9. The hook assembly according to claim 7, characterized in that, The hook assembly also includes: The hook shank (500) is connected upward through the lower crossbeam (400) of the hook body; A hook shank nut (700) is screwed onto the upper end of the hook shank (500); The second thrust bearing (B2) is disposed between the hook nut (700) and the lower crossbeam (400).
10. The hook assembly according to claim 7, characterized in that, The hook assembly also includes: The counterweight (800) is arranged in a sleeve shape around the periphery of the hook body; A connecting bolt (P3) is used to transversely connect the counterweight (800) and the hook body.