Gantry crane supporting leg structure with quick disassembly and assembly function

Abstract

The utility model discloses a gantry crane landing leg structure with quick disassembly and assembly function, which comprises an underframe, a base is provided with a connecting mechanism, the connecting mechanism comprises a connecting sleeve, a support leg, an adjusting hole, a plug and a fixing mechanism, the connecting sleeve is mounted on the base, the support leg slides in the connecting sleeve, and the fixing mechanism is mounted on the base. And the fixing mechanism comprises a fixing sleeve, a gear, a matching sleeve, a connecting rod, a clamping block, a clamping groove, a sliding groove, a transmission sleeve, a rack and a locking mechanism, the fixing sleeve and the inserting bolt are connected in a matched mode, the transmission mode of the gear and the rack is combined, and the locking mechanism is locked. Through threaded transmission of the matching sleeve and the connecting rod, accurate meshing of the clamping block and the clamping groove is achieved, elastic supporting of the compression spring and the push ring and sliding guiding of the guide plate and the guide rod are matched, the stability of the fixing process is guaranteed, and rapid fixing and dismounting of the supporting leg are achieved.

Description

Technical Field

[0001] This utility model relates to the field of gantry crane technology, and more specifically, it relates to a gantry crane outrigger structure with quick assembly and disassembly function. Background Technology

[0002] On large-scale construction sites, the installation and dismantling of gantry cranes is an important and frequent task. Currently, most outriggers are connected using traditional bolt fixing methods, which require multiple people to work together for installation. This is not only time-consuming and labor-intensive, but also requires specialized installation tools. This cumbersome installation method seriously affects the construction progress, increases labor costs, and makes construction more difficult in adverse weather conditions.

[0003] In actual use, the lack of an effective quick-locking device makes it difficult to quickly assemble and disassemble the outriggers in emergency situations, affecting the mobility of the equipment and construction efficiency. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the problems existing in the prior art, this utility model provides a gantry crane outrigger structure with quick assembly and disassembly function to solve the technical problem mentioned in the background art of the difficulty in achieving quick assembly and disassembly of outriggers.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a gantry crane outrigger structure with quick assembly and disassembly function, comprising a base frame, a connecting mechanism provided on the base frame, the connecting mechanism comprising a connecting sleeve, a support leg, an adjusting hole, a bolt, and a fixing mechanism, the connecting sleeve being installed on the base frame, the support leg sliding within the connecting sleeve, multiple sets of adjusting holes distributed on the outer walls of the connecting sleeve and the support leg, the bolt being inserted into the adjusting hole, the fixing mechanism comprising a fixing sleeve, gears, mating sleeves, connecting rods, locking blocks, locking grooves, sliding grooves, a transmission sleeve, a rack, and a locking mechanism, the fixing sleeve being located at the top of the bolt, multiple sets of gears being rotatably installed on the outer wall of the fixing sleeve, mating sleeves being installed inside the multiple sets of gears and rotatably connected to the fixing sleeve, the connecting rod being threadedly connected within the multiple sets of mating sleeves, locking blocks being installed at the bottom ends of the multiple sets of connecting rods, multiple sets of sliding grooves distributed on the outer wall of the bolt, the transmission sleeve sliding on the outer wall of the fixing sleeve, and multiple sets of racks being installed inside the transmission sleeve and meshing with the multiple sets of gears.

[0008] This utility model is further configured such that the locking mechanism includes a limiting block, a return spring, a push spring, a sliding sleeve, and a limiting plate. Multiple sets of limiting blocks slide on the top of the transmission sleeve. Multiple sets of return springs are provided, with their ends respectively connected to the tops of the multiple sets of limiting blocks and the outer wall of the transmission sleeve. Multiple sets of push springs are installed on the top of the fixed sleeve. The sliding sleeve is installed on the tops of the multiple sets of push springs, and multiple sets of limiting plates are installed on the outer wall of the sliding sleeve. Through the sliding cooperation between the limiting block and the transmission sleeve, combined with the elastic reset function of the return spring and the supporting role of the push spring, and the linkage design of the sliding sleeve and the limiting plate, reliable locking and rapid unlocking of the transmission sleeve are achieved.

[0009] The present invention is further configured such that a compression spring is installed on the top surface of the inner side of the fixing sleeve, and a push ring is installed at the bottom end of the compression spring. Through the elastic support of the compression spring on the push ring, the pin can be automatically pushed apart from the fixing sleeve during disassembly, improving disassembly efficiency.

[0010] The present invention is further configured such that the outer wall of the plug is provided with positioning strips, and multiple sets of positioning strips are provided; the inner wall of the fixing sleeve is provided with positioning grooves, and multiple sets of positioning grooves are provided and slidably connected with multiple sets of positioning strips. Through the sliding engagement of the positioning strips and positioning grooves, accurate positioning of the plug during installation is ensured, preventing rotation during use.

[0011] This invention is further configured such that all sets of the locking blocks and slots are polygonal, and the slots are adapted to the sliding grooves. Through the polygonal design of the locking blocks and slots, combined with the guiding effect of the sliding grooves, directional engagement is achieved, improving the stability of the connection.

[0012] This invention is further configured such that the outer wall of the transmission sleeve is provided with guide plates, and multiple sets of guide plates are provided; the fixed sleeve is provided with guide rods, and multiple sets of guide rods are provided and slidably connected to multiple sets of guide plates respectively. Through the sliding cooperation between the guide plates and guide rods, a stable motion trajectory is provided for the transmission sleeve, ensuring the accuracy of transmission.

[0013] This invention is further configured such that a stop block is installed at the top of each of the multiple sets of guide rods. By setting the stop block at the top of the guide rod, the guide plate is prevented from detaching from the guide rod, thus improving safety during use.

[0014] This invention is further characterized in that the inner sides of multiple sets of limiting plates are provided with rounded corners. The rounded corner design of the inner sides of the limiting plates makes the contact with the limiting blocks smoother, reducing wear and improving operational reliability.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a gantry crane outrigger structure with quick assembly and disassembly function, which has the following beneficial effects:

[0017] 1. By setting a connecting mechanism on the base frame, adopting the sliding fit between the connecting sleeve and the support leg, and with the plug-in design of multiple sets of adjustment holes, the height of the support leg can be quickly adjusted. At the same time, the sliding fit between the positioning strip and the positioning groove ensures the accuracy of the plug installation position, thus solving the problems of cumbersome installation and inaccurate positioning of traditional support legs.

[0018] 2. By setting up a fixing mechanism, utilizing the cooperation between the fixing sleeve and the plug, combined with the transmission method of gears and racks, and through the threaded transmission of the sleeve and the connecting rod, the precise meshing of the locking block and the locking slot is achieved. With the elastic support of the compression spring and the push ring, and the sliding guidance of the guide plate and the guide rod, not only is the stability of the fixing process ensured, but the quick fixing and disassembly of the outriggers are also realized, effectively solving the problem of insufficient connection in the existing technology.

[0019] 3. By setting a locking mechanism at the top of the fixed sleeve, adopting the interlocking design of the limiting block and the limiting groove, combined with the elastic reset function of the reset spring, and the cooperation of the sliding sleeve supported by the push spring and the limiting plate, the reliable locking of the transmission sleeve is achieved. The rounded corner design on the inner side of the limiting plate ensures a smooth transition when the lock is released, which not only improves the reliability of the lock, but also realizes the function of quick unlocking, solving the problem of the lack of an effective locking device in the existing technology. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a gantry crane outrigger structure with quick assembly and disassembly function according to the present invention.

[0021] Figure 2 This is a schematic diagram of the disassembled structure of the fixing mechanism in this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the plug in this utility model;

[0023] Figure 4 This is a cross-sectional view of the fixing mechanism in this utility model;

[0024] Figure 5 This is a cross-sectional view of the locking mechanism in this utility model.

[0025] In the diagram: 1. Base frame; 2. Connecting sleeve; 3. Support leg; 4. Adjustment hole; 5. Bolt; 6. Fixing sleeve; 7. Gear; 8. Mating sleeve; 9. Connecting rod; 10. Locking block; 11. Locking groove; 12. Sliding groove; 13. Transmission sleeve; 14. Rack; 15. Limiting block; 16. Return spring; 17. Push spring; 18. Sliding sleeve; 19. Limiting plate; 20. Compression spring; 21. Push ring; 22. Positioning strip; 23. Positioning groove; 24. Guide plate; 25. Guide rod; 26. Stop block; 27. Limiting groove. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0029] Please see Figures 1-5 A gantry crane outrigger structure with quick assembly and disassembly function includes a base frame 1. A connecting mechanism is provided on the base frame 1. The connecting mechanism includes a connecting sleeve 2, a support leg 3, adjusting holes 4, a bolt 5, and a fixing mechanism. The connecting sleeve 2 is installed on the base frame 1, and the support leg 3 slides within the connecting sleeve 2. Multiple sets of adjusting holes 4 are distributed on the outer walls of the connecting sleeve 2 and the support leg 3. The bolt 5 is inserted into the adjusting holes 4. The fixing mechanism includes a fixing sleeve 6, a gear 7, a mating sleeve 8, a connecting rod 9, a locking block 10, a locking groove 11, and a sliding groove 12. The system includes a transmission sleeve 13, a rack 14, and a locking mechanism. A fixed sleeve 6 is located at the top of the plug 5. Multiple sets of gears 7 are rotatably mounted on the outer wall of the fixed sleeve 6. A mating sleeve 8 is mounted inside the multiple sets of gears 7 and rotatably connected to the fixed sleeve 6. A connecting rod 9 is threadedly connected inside the multiple sets of mating sleeves 8. A locking block 10 is mounted at the bottom of the multiple sets of connecting rods 9. Multiple sets of sliding grooves 12 are distributed on the outer wall of the plug 5. The transmission sleeve 13 slides on the outer wall of the fixed sleeve 6. Multiple sets of racks 14 are mounted inside the transmission sleeve 13 and mesh with the multiple sets of gears 7.

[0030] A compression spring 20 is installed on the top surface of the inner sleeve 6, and a push ring 21 is installed at the bottom end of the compression spring 20. The principle is that the compression spring 20 stores elastic potential energy when compressed, and transmits the force to the plug 5 through the push ring 21. When disassembly is required, the compression spring 20 releases its potential energy to push the push ring 21, thereby realizing the automatic pop-out of the plug 5.

[0031] The outer wall of the plug 5 is provided with positioning strips 22, and multiple sets of positioning strips 22 are provided. The inner wall of the fixing sleeve 6 is provided with positioning grooves 23, and multiple sets of positioning grooves 23 are provided and slidably connected with multiple sets of positioning strips 22. The principle is that the positioning strips 22 slide in the positioning grooves 23 to form a directional guiding structure, preventing the plug 5 from rotating during use.

[0032] Multiple sets of locking blocks 10 and locking slots 11 are all set as polygons, and multiple sets of locking slots 11 are adapted to slide grooves 12. The principle is to use the polygonal structure of the locking blocks 10 and locking slots 11 to form directional locking, while the slide grooves 12 provide motion guidance to ensure the accuracy of the locking process.

[0033] The outer wall of the transmission sleeve 13 is provided with guide plates 24, and multiple sets of guide plates 24 are provided. The fixed sleeve 6 is provided with guide rods 25, and multiple sets of guide rods 25 are provided and slidably connected to multiple sets of guide plates 24. The principle is that by sliding the guide plates 24 on the guide rods 25, a stable motion trajectory is provided for the transmission sleeve 13, preventing deviation during transmission.

[0034] Each of the multiple guide rods 25 has a stop 26 installed at its top. The principle is to prevent the guide plate 24 from detaching from the guide rod 25 during movement by limiting the movement of the stop 26, thus ensuring the safety of the transmission system.

[0035] In this embodiment, the support leg 3 is connected to the base frame 1 via the connecting sleeve 2, and its height can be adjusted by sliding within the connecting sleeve 2. Multiple sets of adjustment holes 4 are provided, allowing the plug 5 to be inserted into the adjustment holes 4 at different heights, thus fixing the height of the support leg 3. After the plug 5 is inserted, the fixing sleeve 6 is installed on the top of the plug 5, causing the push ring 21 to abut against the top of the plug 5 and compress the compression spring 20. The sliding transmission sleeve 13 drives multiple sets of racks 14 to mesh with gears 7, which in turn drive the mating sleeve 8 to rotate. The mating sleeve 8 engages with the connecting rod 9 via threaded transmission, and the threaded transmission of the connecting rod 9 moves the locking block 10. The locking block 10 forms an directional fit with the slot 11 through a polygonal design. The slide 12 provides motion guidance. The cooperation of the limiting plate 19 and the guide rod 25 ensures the stable movement of the transmission sleeve 13. Then, the transmission sleeve 13 is locked by the locking mechanism to complete the quick installation. When disassembly is required, the locking mechanism is released, and the transmission sleeve 13 is pushed to drive the rack 14 to mesh with the gear 7, which drives the mating sleeve 8 to rotate. The mating sleeve 8 and the connecting rod 9 are threaded together, which drives the locking block 10 to disengage from the slot 11 and slide in the slide 12. At the same time, the elastic reset of the compression spring 20 pushes the push ring 21, and the push ring 21 pushes the plug 5 to separate from the fixing sleeve 6.

[0036] Please see Figures 3-5 As one embodiment of the locking mechanism: the locking mechanism includes a limiting block 15, a return spring 16, a push spring 17, a sliding sleeve 18, and a limiting plate 19. The limiting block 15 is provided with multiple sets sliding on the top of the transmission sleeve 13. The return spring 16 is provided with multiple sets, and its two ends are respectively connected to the top of the multiple sets of limiting blocks 15 and the outer wall of the transmission sleeve 13. The push spring 17 is provided with multiple sets installed on the top of the fixed sleeve 6. The sliding sleeve 18 is installed on the top of the multiple sets of push springs 17. The limiting plate 19 is provided with multiple sets installed on the outer wall of the sliding sleeve 18. The outer wall of the fixed sleeve 6 is provided with a limiting groove 27, and the limiting groove 27 is provided with multiple sets.

[0037] The inner sides of multiple sets of limiting plates 19 are all equipped with rounded corners. The principle is that the rounded corner design on the inner side of the limiting plate 19 makes the contact with adjacent components smoother, reduces stress concentration, and extends service life.

[0038] More specifically, multiple sets of push springs 17 push the sliding sleeve 18, which in turn drives multiple sets of limiting plates 19 to abut against the top of multiple sets of limiting blocks 15. This causes the bottom of the multiple sets of limiting blocks 15 to engage in the limiting groove 27 and compress the multiple sets of return springs 16, thus fixing the transmission sleeve 13. Pushing the sliding sleeve 18 compresses the multiple sets of push springs 17 and causes the multiple sets of limiting plates 19 to release their contact with the multiple sets of limiting blocks 15. The elastic return of the multiple sets of return springs 16 pulls the limiting blocks 15 outward and away from the limiting groove 27, thereby releasing the limitation on the transmission sleeve 13.

[0039] In summary, during use or operation of the overall equipment: the support leg 3 is connected to the base frame 1 via the connecting sleeve 2, and its height can be adjusted by sliding within the connecting sleeve 2. Through the setting of multiple sets of adjustment holes 4, the plug 5 can be inserted into the adjustment holes 4 at different height positions to fix the height of the support leg 3. After the plug 5 is inserted, the fixing sleeve 6 is installed on the top of the plug 5, causing the push ring 21 to abut against the top of the plug 5 and compress the compression spring 20. The sliding transmission sleeve 13 drives multiple sets of racks 14 to mesh with gears 7, which in turn drive the mating sleeve 8 to rotate. The mating sleeve 8 engages with the connecting rod 9 via threaded transmission, which in turn drives the locking block through the threaded transmission of the connecting rod 9. 10 moves, the locking block 10 forms a directional fit with the slot 11 through the polygonal design, the slide 12 provides motion guidance, the cooperation of the limiting plate 19 and the guide rod 25 ensures the stable movement of the transmission sleeve 13, and then the transmission sleeve 13 is locked by the locking mechanism to complete the quick installation. When disassembly is required, the locking mechanism is released, the transmission sleeve 13 is pushed to drive the rack 14 to mesh with the gear 7 to drive the mating sleeve 8 to rotate, the mating sleeve 8 and the connecting rod 9 are threaded to drive the locking block 10 to disengage from the slot 11 and slide in the slide 12, and at the same time the elastic reset of the compression spring 20 pushes the push ring 21, and the push ring 21 pushes the plug 5 to separate from the fixed sleeve 6.

[0040] Multiple sets of push springs 17 push the sliding sleeve 18, which in turn drives multiple sets of limiting plates 19 to abut against the top of multiple sets of limiting blocks 15. This causes the bottom of the multiple sets of limiting blocks 15 to engage in the limiting groove 27 and compress the multiple sets of return springs 16, thus fixing the transmission sleeve 13. Pushing the sliding sleeve 18 compresses the multiple sets of push springs 17 and causes the multiple sets of limiting plates 19 to release their contact with the multiple sets of limiting blocks 15. The elastic return of the multiple sets of return springs 16 pulls the limiting blocks 15 outward and away from the limiting groove 27, thereby releasing the limitation on the transmission sleeve 13.

[0041] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A gantry crane outrigger structure with quick assembly and disassembly function, comprising a base frame (1), characterized in that: The base frame (1) is provided with a connecting mechanism, which includes a connecting sleeve (2), a support leg (3), an adjusting hole (4), a plug (5), and a fixing mechanism. The connecting sleeve (2) is installed on the base frame (1), and the support leg (3) slides inside the connecting sleeve (2). The adjusting hole (4) is provided with multiple sets distributed on the outer walls of the connecting sleeve (2) and the support leg (3). The plug (5) is inserted into the adjusting hole (4). The fixing mechanism includes a fixing sleeve (6), a gear (7), a mating sleeve (8), a connecting rod (9), a locking block (10), a locking groove (11), a sliding groove (12), a transmission sleeve (13), and a rack. (14) and locking mechanism, fixed sleeve (6) is set at the top of the plug (5), gear (7) is provided in multiple sets and rotatedly installed on the outer wall of fixed sleeve (6), mating sleeve (8) is installed on the inner side of multiple sets of gears (7) and rotatedly connected to fixed sleeve (6), connecting rod (9) is threadedly connected in multiple sets of mating sleeve (8), locking block (10) is installed at the bottom of multiple sets of connecting rod (9), sliding groove (12) is provided in multiple sets distributed on the outer wall of plug (5), transmission sleeve (13) slides on the outer wall of fixed sleeve (6), rack (14) is provided in multiple sets installed on the inner side of transmission sleeve (13) and meshes with multiple sets of gears (7).

2. The gantry crane outrigger structure with quick assembly and disassembly function according to claim 1, characterized in that: The locking mechanism includes a limiting block (15), a reset spring (16), a push spring (17), a sliding sleeve (18), and a limiting plate (19). The limiting block (15) is provided with multiple sets that slide on the top of the transmission sleeve (13). The reset spring (16) is provided with multiple sets and its two ends are respectively connected to the top of the limiting block (15) and the outer wall of the transmission sleeve (13). The push spring (17) is provided with multiple sets that are installed on the top of the fixed sleeve (6). The sliding sleeve (18) is installed on the top of the multiple sets of push springs (17). The limiting plate (19) is provided with multiple sets that are installed on the outer wall of the sliding sleeve (18). The outer wall of the fixed sleeve (6) has a limiting groove (27) and multiple sets of the limiting groove (27).

3. The gantry crane outrigger structure with quick assembly and disassembly function according to claim 2, characterized in that: A compression spring (20) is installed on the inner top surface of the fixed sleeve (6), and a push ring (21) is installed at the bottom end of the compression spring (20).

4. The gantry crane outrigger structure with quick assembly and disassembly function according to claim 3, characterized in that: The outer wall of the plug (5) is provided with a positioning strip (22), and multiple sets of the positioning strip (22) are provided. The inner wall of the fixing sleeve (6) is provided with a positioning groove (23), and multiple sets of the positioning groove (23) are provided and are slidably connected to multiple sets of the positioning strip (22).

5. A gantry crane outrigger structure with quick assembly and disassembly function according to claim 4, characterized in that: multiple sets of... Both the card block (10) and the card slot (11) are set as polygons, and multiple sets of the card slots (11) are adapted to the slide grooves (12).

6. The gantry crane outrigger structure with quick assembly and disassembly function according to claim 5, characterized in that: The outer wall of the transmission sleeve (13) is provided with a guide plate (24), and there are multiple sets of the guide plate (24). The fixed sleeve (6) is provided with a guide rod (25), and there are multiple sets of the guide rod (25) which are slidably connected to multiple sets of guide plates (24).

7. A gantry crane outrigger structure with quick assembly and disassembly function according to claim 6, characterized in that: Each of the guide rods (25) has a stop (26) installed at its top.

8. A gantry crane outrigger structure with quick assembly and disassembly function according to claim 7, characterized in that: The inner side of each of the multiple sets of limiting plates (19) is provided with rounded corners.

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