Light crane with quick detachable hook function

Abstract

The utility model discloses a light -duty crane with quick dismounting and mounting hook function relates to crane technical field. The utility model discloses a crane body, hoist seat and hook body, mounting block, its fixed mounting is on hoist seat, and the through -hole that can supply hook body to pass through is equipped on mounting seat, and the positioning slot is seted up on hook body, and the fixed component that can be positioned to positioning slot is equipped in mounting block, and the fixed component includes outer gear, and it rotates and set up in mounting block, and the drive component that drives outer gear rotation is equipped in mounting block, and a plurality of drive grooves are equipped on outer gear and pass through, and a plurality of connecting plates, its movable setting is in mounting block, and the locating plate is equipped with in connecting plate one end, and the drive shaft is equipped with in the other end, and drive shaft movable setting is in drive groove. The utility model discloses through drive component control outer gear rotation, and then drive locating plate to carry out positioning and cancel positioning to hook body, and the versatility is strong, realizes the quick dismounting of hook body.

Description

Technical Field

[0001] This utility model belongs to the field of cranes, specifically, it relates to a light-duty crane with a quick-release hook assembly / disassembly function. Background Technology

[0002] In modern industrial production, logistics warehousing, and construction, light-duty cranes are widely used for lifting and unloading various small and medium-sized goods due to their advantages such as flexible operation and small footprint. As a key component of light-duty cranes, the hook plays an important role in connecting the crane to the goods being lifted. The ease of its installation and disassembly directly affects the efficiency of equipment use and maintenance costs. Currently, most light-duty cranes on the market use a traditional fixed installation structure for hook connection. This structure usually requires bolts, nuts, and other connectors to fix the hook to the crane's lifting device. However, this makes the installation and disassembly of the hook on the crane very troublesome, thus making it inconvenient to repair and replace the hook.

[0003] Chinese patent CN214298961U discloses a light-duty crane with a quick-release hook function. This device uses a positioning mechanism to position and initially fix the fixed seat, aligning the first square through hole on the fixed seat with two second square through holes. This allows the fixing screw to accurately pass through both the second and first square through holes in one go during the fixing process, facilitating the operator's fixation and improving the efficiency of hook replacement. However, when removing the fixed seat from the first mounting groove, the positioning protrusions engage with the positioning grooves to position the fixed seat. Since the tops of the positioning protrusions are horizontal, it is necessary to first remove the two positioning protrusions along the positioning grooves before the fixed seat can be removed from the first mounting groove. This cumbersome process reduces the efficiency of hook removal. In view of this, this utility model is proposed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a lightweight crane with a quick hook assembly and disassembly function, thus solving the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows: A light-duty crane with a quick-release hook function includes: a crane body, a lifting base, and a hook body; a mounting block fixedly mounted on the lifting base; a through hole through which the hook body can pass; a positioning groove on the hook body; and a fixing component within the mounting block for positioning the positioning groove, the fixing component comprising: An external gear is rotatably disposed within the mounting block, and the mounting block is provided with a drive assembly that drives the external gear to rotate. Multiple drive slots are provided through the external gear. Multiple connecting plates are movably disposed within the mounting block. Each connecting plate has a positioning plate at one end and a drive shaft at the other end, which is movably disposed within the drive groove.

[0006] Optionally, the driving component includes: A drive gear is rotatably mounted in the mounting block via a rotating shaft, and the drive gear meshes with the external gear. A worm gear is sleeved and fixedly mounted on the rotating shaft. A worm gear that meshes with the worm gear is rotatably connected inside the mounting block, and the control end of the worm gear extends to the outside of the mounting block.

[0007] Optionally, the control end of the worm gear has an embedded control slot.

[0008] Optionally, a limiting plate is fixedly connected to the drive shaft along the drive groove.

[0009] Optionally, the positioning groove is an annular structure, and the positioning plate is an arc-shaped structure coaxial with the positioning groove.

[0010] Optionally, the top of the hook body extends outside the mounting block, and a fixing nut is fitted and threaded onto the top of the hook body.

[0011] Optionally, the bottom of the hook body is fitted with and fixedly connected to a connecting ring that can fit against the bottom of the mounting block.

[0012] Optionally, the fixing nut is provided with a first positioning hole, and the hook body is provided with a plurality of second positioning holes through the first positioning hole, the plurality of second positioning holes being spaced apart along the circumference of the hook body.

[0013] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time: 1. By setting fixed components and positioning slots, the external gear is controlled to rotate by the drive component, thereby driving the positioning plate to position and release the hook body. It has strong versatility and realizes the quick assembly and disassembly of the hook body. Compared with traditional bolt connection and other methods, the operation is simpler and faster, which can effectively reduce the hook replacement time and improve the efficiency of crane use. 2. By setting a limit plate and a connecting ring, the limit plate avoids the positioning failure caused by the drive shaft coming out of the drive groove, ensuring the smooth installation and disassembly of the hook body and reducing the probability of failure; the connecting ring makes the installation of the hook body more precise and facilitates the correspondence between the positioning groove and the positioning plate. 3. By setting a fixing nut, a first positioning hole, and a second positioning hole, the fixing nut is tightened to align the first positioning hole with a certain second positioning hole. Then, positioning pins and other components can be inserted through the first and second positioning holes to further fix the relative position of the fixing nut and the hook body, preventing the fixing nut from loosening due to vibration or other reasons during lifting, thereby enhancing the anti-loosening effect of the fixing nut.

[0014] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0015] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the lifting base of this utility model; Figure 3 This utility model Figure 2 Front view; Figure 4 This is a schematic diagram of the structure of the hook body of this utility model; Figure 5 This is a structural schematic diagram of the fixing component of this utility model.

[0016] The attached diagram lists the components represented by each number as follows: 1. Crane body; 2. Lifting base; 3. Hook body; 4. Mounting block; 5. Fixing nut; 6. First positioning hole; 7. Connecting ring; 8. Positioning groove; 9. Fixing assembly; 91. External gear; 92. Positioning plate; 93. Connecting plate; 94. Drive shaft; 95. Drive groove; 96. Drive assembly; 961. Worm gear; 962. Rotating shaft; 963. Drive gear; 964. Worm; 10. Control groove; 11. Through hole; 12. Storage groove; 13. Limiting plate; 14. Second positioning hole.

[0017] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings.

[0019] Please see Figure 1-5 As shown, this embodiment provides a lightweight crane with a quick-release hook function, including a crane body 1, a lifting base 2, and a hook body 3, and a mounting block 4, which is fixedly mounted on the lifting base 2. The mounting block 4 has a through hole 11 through which the hook body 3 can pass. The hook body 3 has a positioning groove 8. The mounting block 4 has a fixing component 9 that can position the positioning groove 8. The fixing component 9 includes an external gear 91, which is rotatably disposed in the mounting block 4. The mounting block 4 has a driving component 96 that drives the external gear 91 to rotate. The external gear 91 has multiple driving grooves 95 through it. Multiple connecting plates 93 are movably disposed in the mounting block 4. One end of the connecting plate 93 has a positioning plate 92, and the other end has a driving shaft 94, which is movably disposed in the driving groove 95.

[0020] Specifically, in this embodiment, the diameter of the external gear 91 is larger than the diameter of the through hole 11, and the drive groove 95 is an arc-shaped structure extending from the inner wall to the outer wall of the external gear 91. Meanwhile, the drive shaft 94 is rotatably mounted on the connecting plate 93, which is movably mounted within the mounting block 4. The mounting block 4 has a receiving groove 12 for receiving the positioning plate 92, which communicates with the through hole 11. The positioning plate 92 is movably mounted between the through hole 11 and the receiving groove 12. The positioning plate 92 is configured to be inserted into the positioning groove 8 to achieve the positioning of the hook body 3. Limiting; When installing the hook body 3, by passing the hook body 3 through the through hole 11 on the mounting block 4, the positioning groove 8 on the hook body 3 corresponds to the storage groove 12 and the positioning plate 92. At this time, by operating the drive assembly 96, the external gear 91 is driven to rotate in the mounting block 4. When the external gear 91 rotates, the drive groove 95 on it rotates accordingly. Since the drive shaft 94 is movably set in the drive groove 95, the rotation of the drive groove 95 will cause the drive shaft 94 to move along a specific trajectory. The movement of the drive shaft 94 drives the connecting plate connected to it. The movement of plate 93 eventually causes the positioning plate 92 at one end of the connecting plate 93 to insert into the positioning groove 8 of the hook body 3, thus completing the positioning and fixing of the hook body 3 and firmly installing it on the mounting block 4. Similarly, when it is necessary to disassemble the hook body 3, the drive assembly 96 is operated in reverse, causing the external gear 91 to rotate in the opposite direction. As the external gear 91 rotates in reverse, the drive groove 95 also rotates in reverse, thereby driving the drive shaft 94 to move in reverse. The connecting plate 93 also moves in reverse, causing the positioning plate 92 to exit from the positioning groove 8 of the hook body 3. After the positioning plate 92 exits from the positioning groove 8, the positioning restriction of the hook body 3 is released. At this time, the hook body 3 can be easily removed from the through hole 11 of the mounting block 4. The overall structure is simple to operate and realizes the quick disassembly and assembly of the hook body 3. By controlling the rotation of the external gear 91 through the drive assembly 96, the positioning plate 92 is driven to position and release the hook body 3. It has strong versatility and is simpler and faster to operate than traditional bolt connections. It can effectively reduce the hook replacement time and improve the efficiency of crane use.

[0021] It should be noted that, in this embodiment, the mounting block 4 is provided with a mounting groove for mounting and fixing the component 9. The structure that allows the external gear 91 to rotate within the mounting block 4 is existing technology. For example, a slider with an annular structure is fixedly mounted at the bottom of the external gear 91, allowing the external gear 91 to rotate within the mounting block 4. Secondly, in this embodiment, the number of positioning plates 92, drive grooves 95, connecting plates 93, and drive shafts 94 are all three sets (of course, this is not limited in other embodiments), and the three positioning plates 92 do not contact each other. The three positioning plates 92 are spaced apart along the circumference of the through hole 11. Compared to existing technologies, this device can achieve both rapid positioning of the hook body 3 and rotation of the hook body 3, thus improving the device's versatility. Furthermore, in this embodiment, the drive component 96 is a structure that can drive the external gear 91 to rotate. For example, a rack meshing with the external gear 91 can be provided. A connecting bolt is rotated on the rack, and the bolt is threaded to the mounting block 4. The rotation of the bolt causes the rack to move and drive the external gear 91 to rotate.

[0022] In this embodiment, as Figure 2 , Figure 3 , Figure 5 As shown, the drive assembly 96 includes a drive gear 963, which is rotatably mounted in the mounting block 4 via a rotating shaft 962. The drive gear 963 meshes with an external gear 91. A worm gear 961 is sleeved and fixedly mounted on the rotating shaft 962. A worm 964, which meshes with the worm gear 961, is rotatably connected inside the mounting block 4. The control end of the worm 964 extends to the outside of the mounting block 4, and a control groove 10 is embedded in the control end of the worm 964. Specifically, in this embodiment, the control groove 10 is an internal hexagonal groove (this is not limited in other embodiments). The tool matching the control slot 10 drives the worm gear 964 to rotate. The rotation of the worm gear 964 drives the worm wheel 961, which meshes with it, to rotate. The worm wheel 961 is fixed on the rotating shaft 962, thereby causing the rotating shaft 962 to rotate. The rotation of the rotating shaft 962 drives the drive gear 963 to rotate. The drive gear 963 meshes with the external gear 91, thereby driving the external gear 91 to rotate. Ultimately, this achieves the movement of the positioning plate 92 to position or release the hook body 3. Utilizing the transmission characteristics of the worm gear 964 and worm wheel 961, it has a large transmission ratio and a self-locking function. The external gear 91 can be driven to rotate with a small force, and after the hook body 3 is installed, it can prevent the external gear 91 from rotating on its own due to external forces or other factors, ensuring the stability and safety of the hook installation.

[0023] In this embodiment, as Figure 5 As shown, a limiting plate 13 is fixedly connected to the drive shaft 94 along the drive groove 95. Specifically, the setting of the limiting plate 13 avoids the positioning failure problem caused by the drive shaft 94 coming out of the drive groove 95, ensuring the smooth installation and disassembly process of the hook body 3 and reducing the probability of failure.

[0024] In this embodiment, as Figure 4 , Figure 5 As shown, the positioning groove 8 is a ring-shaped structure, and the positioning plate 92 is an arc-shaped structure coaxial with the positioning groove 8. Specifically, when the positioning plate 92 is inserted into the positioning groove 8, the arc-shaped positioning plate 92 can better fit with the ring-shaped positioning groove 8, positioning the hook body 3 in all directions, ensuring that the hook body 3 will not shake or shift after installation, thus improving the positioning accuracy and stability.

[0025] In this embodiment, as Figure 2 , Figure 3 and Figure 4 As shown, the top of the hook body 3 extends to the outside of the mounting block 4. A fixing nut 5 is fitted onto the top of the hook body 3 and threadedly connected to it. Specifically, the fixing nut 5 can further fix the hook body 3, preventing the hook body 3 from coming off the mounting block 4 during the lifting process, thereby increasing the reliability of the hook installation.

[0026] In this embodiment, as Figure 2 , Figure 3 and Figure 4 As shown, the bottom of the hook body 3 is fitted with and fixedly connected to a connecting ring 7 that can fit against the bottom of the mounting block 4. Specifically, the setting of the connecting ring 7 makes the installation of the hook body 3 more precise and facilitates the correspondence between the positioning groove 8 and the positioning plate 92.

[0027] In this embodiment, as Figure 3 and Figure 4 As shown, a first positioning hole 6 is provided through the fixing nut 5, and multiple second positioning holes 14 are provided through the hook body 3 opposite to the first positioning hole 6. The multiple second positioning holes 14 are spaced apart along the circumference of the hook body 3. Specifically, after the hook body 3 is installed, the fixing nut 5 is tightened so that the first positioning hole 6 is aligned with a certain second positioning hole 14. Then, positioning pins and other components can be inserted through the first positioning hole 6 and the second positioning hole 14 to further fix the relative position of the fixing nut 5 and the hook body 3, preventing the fixing nut 5 from loosening due to vibration or other reasons during the lifting process, thereby enhancing the anti-loosening effect of the fixing nut 5.

[0028] Working principle: When installing the hook body 3, the hook body 3 is passed through the through hole 11 on the mounting block 4, so that the positioning groove 8 on the hook body 3 corresponds to the storage groove 12 and the positioning plate 92. At this time, the worm 964 is driven to rotate by the tool matching the control groove 10. The rotation of the worm 964 drives the worm wheel 961 that meshes with it to rotate. The worm wheel 961 is fixed on the rotating shaft 962, thereby causing the rotating shaft 962 to rotate. The rotation of the rotating shaft 962 drives the drive gear 963 to rotate. The drive gear 963 meshes with the external gear 91, thereby driving the external gear 91 to rotate. When the external gear 91 rotates, its drive groove 95 rotates accordingly. Since the drive shaft 94 is movably mounted in the drive groove 95, the rotation of the drive groove 95 causes the drive shaft 94 to move along a specific trajectory. The movement of the drive shaft 94 drives the connected connecting plate 93 to move, ultimately causing the positioning plate 92 at one end of the connecting plate 93 to insert into the positioning groove 8 of the hook body 3, completing the positioning and fixing of the hook body 3, and firmly installing it on the mounting block 4. After the hook body 3 is installed, tighten the fixing nut 5 so that the first positioning hole 6 aligns with a certain... Align the two positioning holes 14, and then insert positioning pins and other components through the first positioning hole 6 and the second positioning hole 14 to further fix the relative position of the fixing nut 5 and the hook body 3. Similarly, when it is necessary to disassemble the hook body 3, remove the fixing nut 5, and then reverse the operation of the drive assembly 96 to make the external gear 91 rotate in the opposite direction. When the external gear 91 rotates in the opposite direction, the drive groove 95 also rotates in the opposite direction, thereby driving the drive shaft 94 to move in the opposite direction. The connecting plate 93 also moves in the opposite direction, so that the positioning plate 92 exits from the positioning groove 8 of the hook body 3. After the positioning plate 92 exits from the positioning groove 8, the positioning restriction of the hook body 3 is released. At this time, the hook body 3 can be easily removed from the through hole 11 of the mounting block 4. The overall structure is simple to operate and realizes the quick disassembly and assembly of the hook body 3. By controlling the rotation of the external gear 91 through the drive assembly 96, the positioning plate 92 is driven to position and release the hook body 3. It has strong versatility and is more convenient and faster to operate than traditional bolt connection methods. It can effectively reduce the hook replacement time and improve the efficiency of crane use.

[0029] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A light-duty crane with a quick-release hook assembly / disassembly function, comprising a crane body (1), a lifting base (2), and a hook body (3), characterized in that: Mounting block (4), which is fixedly mounted on the lifting base (2), has a through hole (11) through which the hook body (3) can pass. The hook body (3) has a positioning groove (8). The mounting block (4) has a fixing component (9) for positioning the positioning groove (8). The fixing component (9) includes: An external gear (91) is rotatably disposed within the mounting block (4). The mounting block (4) is provided with a drive assembly (96) for driving the external gear (91) to rotate. Multiple drive grooves (95) are provided through the external gear (91). Multiple connecting plates (93) are movably disposed within the mounting block (4). One end of each connecting plate (93) is provided with a positioning plate (92), and the other end is provided with a drive shaft (94). The drive shaft (94) is movably disposed within the drive groove (95).

2. A light crane having a quick detachable hook function according to claim 1, characterized in that, The driving component (96) includes: A drive gear (963) is rotatably mounted in the mounting block (4) via a rotating shaft (962), and the drive gear (963) meshes with the external gear (91); A worm gear (961) is sleeved and fixedly mounted on the rotating shaft (962). A worm (964) that meshes with the worm gear (961) is rotatably connected inside the mounting block (4). The control end of the worm (964) extends to the outside of the mounting block (4).

3. A light-duty crane with a quick-release hook function according to claim 2, characterized in that, The control end of the worm gear (964) has an embedded control slot (10).

4. A light-duty crane with a quick-release hook function according to claim 2, characterized in that, A limiting plate (13) is fixedly connected to the drive shaft (94) along the drive groove (95).

5. A light crane having a quick detachable hook function according to claim 2, characterized in that, The positioning groove (8) is a ring structure, and the positioning plate (92) is an arc structure coaxial with the positioning groove (8).

6. A light-duty crane with a quick-release hook function according to claim 1, characterized in that, The top of the hook body (3) extends to the outside of the mounting block (4), and a fixing nut (5) is fitted and threaded onto the top of the hook body (3).

7. A light crane having a quick detachable hook function according to claim 6, characterized in that, The bottom of the hook body (3) is fitted with and fixedly connected to a connecting ring (7) that can fit against the bottom of the mounting block (4).

8. A light crane having a quick detachable hook function according to claim 7, characterized in that, The fixing nut (5) is provided with a first positioning hole (6), and the hook body (3) is provided with a plurality of second positioning holes (14) through the first positioning hole (6), and the plurality of second positioning holes (14) are spaced apart along the circumference of the hook body (3).

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