Foldable portable logistics crane

Abstract

The application relates to the technical field of logistics hoists, in particular to a foldable portable logistics hoist which comprises two groups of symmetrically arranged first vertical rods, the end of each first vertical rod is provided with a second vertical rod, the end of each second vertical rod is fixedly connected with a fixing seat, the fixing seat is rotationally connected with a rotating shaft, the rotating shaft is rotationally connected with a rotating block, the ends of the two groups of rotating blocks are fixedly connected with a first cross beam and a second cross beam respectively, the second cross beam and the second vertical rod are both fixedly connected with a fixing frame, the fixing frame is rotationally connected with a connecting shaft, the connecting shaft is rotationally connected with a connecting block, the foldable portable logistics hoist is provided with two groups of first vertical rods and two groups of second vertical rods as well as a first cross beam and a second cross beam, so that the device can be folded conveniently, the connecting position is fixed through the action of fixing pieces and limiting pieces, the stability of the unfolded device is improved, and the device only needs to be folded and transported during transportation, so that the device is convenient to use.

Description

Technical Field

[0001] This application relates to the technical field of logistics cranes, and in particular to a foldable and portable logistics crane. Background Technology

[0002] A crane is a multi-action lifting machine used to vertically lift and horizontally move heavy objects within a certain range. It belongs to material handling equipment and is also known as an overhead crane, gantry crane, or hoist. It completes alternating work cycles such as picking up, moving, and unloading materials through intermittent movements. Its operating characteristics include heavy-load starting, variable frequency speed regulation, and braking control, and it needs to be used in conjunction with an electromagnetic brake to prevent hook slippage.

[0003] Currently, the most widely used type of crane is the bridge crane. The bridge crane is spanned above the workshop or warehouse and runs on the bridge rail, making full use of space to lift and transport materials.

[0004] Regarding the aforementioned technologies, the inventors have discovered the following drawbacks: the crossbeams and support frames of existing bridge cranes are integral structures that cannot be folded. They need to be completely disassembled during transport and then reassembled once they reach the designated location, which is quite troublesome. Utility Model Content

[0005] To address the problems mentioned in the background section, this application provides a foldable and portable logistics crane.

[0006] This application provides a foldable and portable logistics crane, which adopts the following technical solution: Optionally, the device includes two sets of symmetrically arranged first uprights. A second upright is mounted at the end of each first upright, and a fixed base is fixedly connected to the end of each second upright. A rotating shaft is rotatably connected to the fixed base, and a rotating block is rotatably connected to the rotating shaft. A first crossbeam and a second crossbeam are fixedly connected to the ends of the two sets of rotating blocks, respectively. A fixing frame is fixedly connected to both the second crossbeam and the second upright. A connecting shaft is rotatably connected to the fixing frame, and a connecting block is rotatably connected to the connecting shaft. Multiple sets of connecting blocks are fixedly connected to the first crossbeam and the two sets of first uprights, respectively. Fixing components are installed at the ends of both sets of second uprights, and these fixing components are connected to the first crossbeam and the second crossbeam, respectively. Limiting components are installed between the first upright and the second upright, as well as between the first crossbeam and the second crossbeam, to facilitate folding of the first crossbeam and the second crossbeam, thereby facilitating the transportation of the device and eliminating the need for on-site assembly.

[0007] Optionally, the fixing component includes two sets of first hexagonal socket blocks. The two sets of first hexagonal socket blocks are rotatably connected to the first crossbeam and the second crossbeam, respectively. A threaded rod is fixedly connected to the bottom end of the first hexagonal socket block. The outer side of the threaded rod is threaded with a plug rod that is slidably connected to the second upright. The second upright has a slot adapted to the plug rod. The two sets of plug rods are slidably connected to the first crossbeam and the second crossbeam, respectively, which facilitates the improvement of the stability between the first crossbeam and the second crossbeam and the two sets of second uprights.

[0008] Optionally, the limiting component includes nuts that are fixedly connected to the two sets of second uprights and the second crossbeam respectively. The nuts are threaded with threaded posts, and the ends of the threaded posts are connected to pressure components. The three sets of pressure components are respectively installed inside the two sets of second uprights and the second crossbeam. The other end of the threaded posts is equipped with a rotating component. When the first upright and the second upright, as well as the first crossbeam and the second crossbeam, are unfolded, the limiting component makes the first upright and the second upright, as well as the first crossbeam and the second crossbeam, stable.

[0009] Optionally, the rotating component includes a prismatic column that is slidably connected to the threaded column. The threaded column has a prismatic groove adapted to the prismatic column. A rotating column is fixedly connected to the end of the prismatic column. A connecting seat is rotatably connected to the outer side of the rotating column. The three sets of connecting seats are fixedly connected to the two sets of the first uprights and the first crossbeam, respectively. A driving component is installed at the end of the rotating column to facilitate the rotation of the threaded column, thereby allowing the threaded column to engage with the nut and enter the interior of the second crossbeam and the second upright.

[0010] Optionally, the driving component includes three sets of second hexagonal blocks, which are rotatably mounted on two sets of first uprights and first crossbeams respectively. A connecting column is fixedly connected to the bottom end of the second hexagonal block, and a first bevel gear is fixedly connected to the end of the connecting column. A second bevel gear fixedly connected to the rotating column is meshed on the outer side of the first bevel gear, which facilitates driving the rotating column to rotate.

[0011] Optionally, the pressure-applying component includes a fixing plate installed on one side of the threaded column, a spring fixedly connected to the fixing plate, and a connecting plate fixedly connected to the end of the spring, which facilitates pressure application to the threaded column, thereby improving the stability of the threaded column and thus improving the stability of the connection between the first upright and the second upright, as well as the first crossbeam and the second crossbeam.

[0012] Optionally, a connecting plate is fixedly connected to the bottom end of each of the two sets of first uprights, and a caster wheel is fixedly connected to the bottom end of the connecting plate. The design of the caster wheel facilitates the movement of the pushing device.

[0013] Optionally, the end of the insertion rod is tapered, which makes it easier to insert the insertion rod into the slot.

[0014] In summary, this application includes the following beneficial technical effects: This utility model features two sets of first uprights, two sets of second uprights, a first crossbeam, and a second crossbeam, which facilitates folding of the device. The connection points are secured by fasteners and limiting components, ensuring stability after unfolding. Furthermore, the device can be transported folded without disassembly, making it convenient to use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application; Figure 2 This is a schematic diagram of the fastener structure in an embodiment of this application; Figure 3 This is a cross-sectional structural diagram of an embodiment of this application; Figure 4 This is an embodiment of the present application. Figure 3 Schematic diagram of the structure of area A in the middle; Figure 5 This is a schematic diagram of the limiting component structure in an embodiment of this application; Figure 6 This is a schematic diagram of the folded structure of the device according to an embodiment of this application; Figure 7 This is a schematic diagram of the folded limiting component structure according to an embodiment of this application.

[0016] Reference numerals: 1. First upright; 2. Second upright; 3. Fixed seat; 4. Rotating shaft; 5. Rotating block; 6. First crossbeam; 7. Second crossbeam; 8. Fixed frame; 9. Connecting shaft; 10. Connecting block; 11. Fixing component; 12. Limiting component; 13. First internal hexagonal block; 14. Threaded rod; 15. Insert rod; 16. Slot; 17. Nut; 18. Threaded column; 19. Pressurizing component; 20. Rotating component; 21. Prismatic column; 22. Prismatic groove; 23. Rotating column; 24. Connecting seat; 25. Driving component; 26. Second internal hexagonal block; 27. Connecting column; 28. First bevel gear; 29. ​​Second bevel gear; 30. Connecting piece; 31. Spring; 32. Fixing piece; 33. Connecting plate; 34. Caster wheel. Detailed Implementation

[0017] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0018] This application discloses a foldable and portable logistics crane. For example... Figure 1As shown, the device includes two symmetrically arranged first uprights 1. A second upright 2 is installed at the end of each first upright 1. A fixed base 3 is fixedly connected to the end of each second upright 2. A rotating shaft 4 is rotatably connected to the fixed base 3. A rotating block 5 is rotatably connected to the rotating shaft 4. A first crossbeam 6 and a second crossbeam 7 are fixedly connected to the ends of the two sets of rotating blocks 5, respectively. A fixed frame 8 is fixedly connected to both the second crossbeam 7 and the second upright 2. A connecting shaft 9 is rotatably connected to the fixed frame 8. A connecting block 10 is rotatably connected to the connecting shaft 9. Multiple sets of connecting blocks 10 are fixedly connected to the first crossbeam 6 and the two sets of first uprights 1, respectively. Fixing members 11 are installed at the ends of both sets of second uprights 2. The two sets of fixing members 11 are connected to the first crossbeam 6 and the second crossbeam 7, respectively. Limiting members 12 are installed between the first uprights 1 and the second uprights 2, and between the first crossbeam 6 and the second crossbeam 7, facilitating the folding of the first crossbeam 6 and the second crossbeam 7, thereby facilitating the transportation of the device and eliminating the need for on-site assembly.

[0019] Please see Figure 1 and Figure 2 The fastener 11 includes two sets of first hexagonal socket blocks 13, which are rotatably connected to the first crossbeam 6 and the second crossbeam 7 respectively. The bottom end of the first hexagonal socket block 13 is fixedly connected to a threaded rod 14. The outer side of the threaded rod 14 is threadedly connected to a plug rod 15 that is slidably connected to the second upright 2. The second upright 2 is provided with a slot 16 that is adapted to the plug rod 15. The two sets of plug rods 15 are slidably connected to the first crossbeam 6 and the second crossbeam 7 respectively, which facilitates the improvement of the stability between the first crossbeam 6, the second crossbeam 7 and the two sets of second uprights 2.

[0020] Please see Figure 3 and Figure 4 The limiting component 12 includes nuts 17 that are fixedly connected to the two sets of second uprights 2 and the second crossbeam 7 respectively. Threaded posts 18 are threaded onto the nuts 17. Pressure members 19 are connected to the ends of the threaded posts 18. The three pressure members 19 are respectively installed inside the two sets of second uprights 2 and the second crossbeam 7. A rotating member 20 is installed at the other end of the threaded posts 18. When the first uprights 1 and the second uprights 2, as well as the first crossbeam 6 and the second crossbeam 7 are unfolded, the limiting component 12 makes the first uprights 1 and the second uprights 2, as well as the first crossbeam 6 and the second crossbeam 7 stable.

[0021] Please see Figure 4 and Figure 5The rotating component 20 includes a prismatic column 21 that is slidably connected to the threaded column 18. The threaded column 18 has a prismatic groove 22 that is adapted to the prismatic column 21. A rotating column 23 is fixedly connected to the end of the prismatic column 21. A connecting seat 24 is rotatably connected to the outer side of the rotating column 23. The three sets of connecting seats 24 are fixedly connected to the two sets of first uprights 1 and first crossbeams 6 respectively. A driving component 25 is installed at the end of the rotating column 23 to facilitate the rotation of the threaded column 18, thereby allowing the threaded column 18 to engage with the nut 17 and enter the interior of the second crossbeam 7 and the second upright 2.

[0022] Please see Figure 4 and Figure 5 The driving component 25 includes three sets of second hexagonal blocks 26. The three sets of second hexagonal blocks 26 are rotatably mounted on two sets of first uprights 1 and first crossbeams 6 respectively. A connecting column 27 is fixedly connected to the bottom end of the second hexagonal block 26. A first bevel gear 28 is fixedly connected to the end of the connecting column 27. A second bevel gear 29, which is fixedly connected to the rotating column 23, meshes with the outer side of the first bevel gear 28, so as to drive the rotating column 23 to rotate.

[0023] Please see Figure 4 and Figure 5 The pressure-applying component 19 includes a fixing plate 32 installed on one side of the threaded column 18. A spring 31 is fixedly connected to the fixing plate 32, and a connecting plate 30 is fixedly connected to the end of the spring 31, which facilitates pressure on the threaded column 18, thereby improving the stability of the threaded column 18, and thus improving the stability of the connection between the first upright 1 and the second upright 2, as well as the first crossbeam 6 and the second crossbeam 7.

[0024] Please see Figure 1 and Figure 3 Both sets of first uprights 1 are fixedly connected to the bottom of a connecting plate 33, and the bottom of the connecting plate 33 is fixedly connected to a caster wheel 34. The design of the caster wheel 34 facilitates the movement of the device.

[0025] Please see Figure 1 and Figure 2 The end of the insertion rod 15 is tapered, and the tapered end design makes it easy to insert the insertion rod 15 into the slot 16.

[0026] The implementation principle of the foldable portable logistics crane in this application embodiment is as follows: when the device is in use, its state is as follows: Figure 1 As shown, at this time, the threaded post 18 located in the first crossbeam 6 and the two sets of first uprights 1 are respectively inserted into the second crossbeam 7 and the two sets of second uprights 2, thereby making the first crossbeam 6 and the second crossbeam 7 maintain horizontal stability, and the first uprights 1 and the second uprights 2 maintain vertical stability. At the same time, the insertion rod 15 will be inserted into the slot 16, and then the two ends of the first crossbeam 6 and the second crossbeam 7 are respectively connected to the two sets of second uprights 2, so as to make them stably connected, thereby facilitating the use of the device. During folding, firstly, the two sets of first hexagonal blocks 13 are turned. The rotation of the first hexagonal blocks 13 causes the threaded rod 14 to rotate, which in turn causes the insertion rod 15 to move upwards, disengaging it from the slot 16. Next, the two sets of second hexagonal blocks 26 located on the first upright 1 are turned. The rotation of the second hexagonal blocks 26 causes the connecting column 27 to drive the first bevel gear 28 to rotate, which in turn causes the second bevel gear 29 to drive the rotating column 23 to rotate. The rotation of the rotating column 23 causes the prismatic column 21 to rotate, which in turn causes the threaded column 18 to rotate. The engagement of the threaded column 18 with the nut 17 causes the threaded column 18 to gradually move backwards, gradually disengaging it from the nut 17. At this point, the first upright 1 and the second upright 2 are rotated and folded. Then, the second hexagonal blocks 26 located on the first crossbeam 6 are turned again, disengaging the threaded column 18 from the nut 17. Finally, the first crossbeam 6 and the second crossbeam 7 are rotated and folded, completing the folding of the device. The folded state is as follows. Figure 6 As shown; During unfolding, the two sets of first hexagonal blocks 13 and the three sets of second hexagonal blocks 26 are rotated in opposite directions. When the first hexagonal blocks rotate, the threaded rod 14 rotates, causing the insertion rod 15 to move down and insert into the slot 16, completing the connection between the first crossbeam 6 and the second crossbeam 7 and the two sets of second uprights 2. Then, the rotation of the second hexagonal blocks 26 will drive the connecting column 27 to rotate. Through the action of the first bevel gear 28 and the second bevel gear 29, the rotating column 23 drives the prismatic column 21 to rotate, which in turn causes the threaded column 18 to rotate. Through the cooperation with the nut 17, the threaded column 18 is inserted into the second crossbeam 7 and the two sets of second uprights 2. The spring 31 compresses the threaded column 18 to improve its stability. At this point, the device is fully unfolded and can be used normally.

[0027] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A foldable and portable logistics crane, comprising: Two sets of symmetrically arranged first uprights (1) are characterized in that: a second upright (2) is installed at the end of the first upright (1), a fixed seat (3) is fixedly connected to the end of the second upright (2), a rotating shaft (4) is rotatably connected to the fixed seat (3), a rotating block (5) is rotatably connected to the rotating shaft (4), a first crossbeam (6) and a second crossbeam (7) are fixedly connected to the ends of the two sets of rotating blocks (5) respectively, and a fixed frame (8) is fixedly connected to both the second crossbeam (7) and the second upright (2). A connecting shaft (9) is rotatably connected, and a connecting block (10) is rotatably connected on the connecting shaft (9). Multiple sets of the connecting blocks (10) are fixedly connected to the first crossbeam (6) and two sets of the first uprights (1) respectively. Fixing parts (11) are installed at the ends of the two sets of the second uprights (2). The two sets of fixing parts (11) are connected to the first crossbeam (6) and the second crossbeam (7) respectively. Limiting parts (12) are installed between the first uprights (1) and the second uprights (2) and between the first crossbeam (6) and the second crossbeam (7).

2. The foldable portable logistics crane according to claim 1, characterized in that: The fastener (11) includes two sets of first hexagonal blocks (13). The two sets of first hexagonal blocks (13) are rotatably connected to the first crossbeam (6) and the second crossbeam (7) respectively. The bottom end of the first hexagonal block (13) is fixedly connected to a threaded rod (14). The outer side of the threaded rod (14) is threadedly connected to a plug (15) that is slidably connected to the second upright (2). The second upright (2) is provided with a slot (16) that is compatible with the plug (15). The two sets of plugs (15) are slidably connected to the first crossbeam (6) and the second crossbeam (7) respectively.

3. A foldable portable logistics crane according to claim 2, characterized in that: The limiting component (12) includes nuts (17) that are fixedly connected to the two sets of the second uprights (2) and the second crossbeam (7) respectively. A threaded post (18) is threaded onto the nut (17). A pressure member (19) is connected to the end of the threaded post (18). The three sets of pressure members (19) are installed inside the two sets of the second uprights (2) and the second crossbeam (7) respectively. A rotating member (20) is installed at the other end of the threaded post (18).

4. A foldable portable logistics crane according to claim 3, characterized in that: The rotating component (20) includes a prismatic column (21) that is slidably connected to the threaded column (18). The threaded column (18) has a prismatic groove (22) that is adapted to the prismatic column (21). A rotating column (23) is fixedly connected to the end of the prismatic column (21). A connecting seat (24) is rotatably connected to the outer side of the rotating column (23). The three sets of connecting seats (24) are fixedly connected to the two sets of the first uprights (1) and the first crossbeam (6), respectively. A driving component (25) is installed at the end of the rotating column (23).

5. A foldable portable logistics crane according to claim 4, characterized in that: The driving component (25) includes three sets of second hexagonal blocks (26). The three sets of second hexagonal blocks (26) are rotatably mounted on two sets of first uprights (1) and first crossbeams (6). The bottom end of the second hexagonal block (26) is fixedly connected to a connecting column (27). The end of the connecting column (27) is fixedly connected to a first bevel gear (28). The outer side of the first bevel gear (28) is meshed with a second bevel gear (29) fixedly connected to the rotating column (23).

6. A foldable portable logistics crane according to claim 5, characterized in that: The pressure member (19) includes a fixing plate (32) installed on one side of the threaded post (18), a spring (31) is fixedly connected to the fixing plate (32), and a connecting plate (30) is fixedly connected to the end of the spring (31).

7. A foldable portable logistics crane according to claim 6, characterized in that: Both sets of first uprights (1) are fixedly connected to a connecting plate (33) at their bottom ends, and the connecting plate (33) is fixedly connected to a caster wheel (34) at its bottom end.

8. A foldable portable logistics crane according to claim 7, characterized in that: The end of the insertion rod (15) is tapered.

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