A multi-purpose rectangular concrete pipe gallery product lifting tool

Abstract

This utility model discloses a multi-purpose lifting tool for rectangular concrete pipe racks, belonging to the field of lifting tool technology. It includes a frame with two transverse secondary beams symmetrically positioned on the inner side of the frame. Two longitudinal secondary beams are connected to the top of both ends of the transverse secondary beams via sliding components. The lower surfaces of both ends of the longitudinal secondary beams are attached to the frame. By setting the transverse secondary beams on the inner side of the frame, their ends are connected to the longitudinal secondary beams via sliding components and fixed with fastener one. The two ends of the longitudinal secondary beams are connected to a sliding structure with hanging rings via connecting seats and fixed with fastener two. The hanging rings connect to a wire rope and a lifting pin, forming a flexibly adjustable structure. This eliminates the need to design or modify lifting tools for different specifications of rectangular pipe racks. Through the adjustment and fixing of the sliding components, fastener one, and fastener two, it can adapt to various pipe rack sizes, reducing the number of lifting tools and avoiding repeated cutting and welding of the main beam of the lifting tool.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment technology, specifically a multi-purpose rectangular concrete pipe gallery lifting equipment. Background Technology

[0002] Precast rectangular reinforced concrete utility tunnels (rectangular tunnels) are increasingly used in underground tunneling projects due to their technical advantages such as factory prefabrication, high strength and impermeability, non-excavation jacking construction, short construction period, minimal impact on ground traffic and low overall cost. However, due to differences in the purpose of underground projects, soil cover depth and cross-sectional dimensions, the rectangular tunnels designed by different design institutes have different external dimensions, which means that precast pipe factories need to use corresponding lifting equipment when hoisting and unloading products of different specifications.

[0003] Traditional lifting tools are designed and manufactured one by one according to the specific specifications of the pipe gallery. This will increase the number of lifting tools in the prefabrication plant as the pipe gallery specifications increase, thus increasing equipment costs. Alternatively, when adapting existing lifting tools according to the principle of "using larger tools to replace smaller ones", the increase in wire rope attachment points will increase the self-weight of the lifting tools. Furthermore, repeated cutting and welding of the main beam can significantly reduce its safety performance and create potential safety hazards. Therefore, in order to solve the above problems, a multi-purpose rectangular concrete pipe gallery lifting tool has been proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a multi-purpose rectangular concrete pipe gallery product lifting tool. Through the adjustment and fixing of the sliding component, fastener one and fastener two, it can adapt to various pipe gallery sizes. Therefore, it avoids the need for repeated cutting and welding of the main beam of the lifting tool, prevents the decline in safety performance due to structural changes, eliminates potential safety hazards, and at the same time, it does not require adding too many wire rope attachment points, controls the weight of the lifting tool, and takes into account adaptability, economy and safety, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-purpose rectangular concrete pipe gallery product lifting tool, including a frame, two transverse secondary beams are arranged symmetrically on the inner side of the frame, and two longitudinal secondary beams are arranged at the top of both ends of the transverse secondary beams through sliding components;

[0006] The lower surfaces at both ends of the longitudinal sub-beam are attached to the frame, and fasteners are provided at the attachment points between the frame and the longitudinal sub-beam.

[0007] It also includes a connecting seat, which is sleeved on both ends of the longitudinal sub-beam, and a fastener two is provided at the contact point between the connecting seat and the upper end face of the longitudinal sub-beam;

[0008] The lower end of the connecting seat is provided with a hanging ring, a steel wire rope is sleeved on the hanging ring, and a lifting needle is installed at the lower end of the steel wire rope.

[0009] Preferably, the sliding assembly includes a groove and a slider. The groove is formed on the upper end face of the transverse sub-beam, and the slider is fixed on the lower end face of the longitudinal sub-beam. The lower end of the slider passes through the groove and is slidably connected within the groove of the transverse sub-beam.

[0010] Preferably, the frame includes two main crossbeams and two main longitudinal beams, which are fixed in symmetrical positions. The two ends of the transverse secondary beam are fixed to the main longitudinal beams, and the two ends of the longitudinal secondary beam are attached to the upper end face of the main crossbeam. The connecting seat is disposed between the transverse secondary beam and the main crossbeam.

[0011] Preferably, the fastener includes a through hole and multiple positioning holes. The through hole is located at both ends of the longitudinal sub-beam, and the multiple positioning holes are evenly distributed on the main crossbeam. A fastening bolt is inserted into the inner cavity of the through hole, and the lower end of the fastening bolt passes through the corresponding positioning hole and is threaded with a fastening nut.

[0012] Preferably, the second fastener includes a second through hole and a plurality of second positioning holes. The second through hole is opened on the top of the connecting seat, and the plurality of second positioning holes are evenly distributed on the upper end face of the longitudinal sub-beam. A second fastening bolt is inserted into the second through hole, and the lower end of the second fastening bolt passes through the corresponding second positioning hole and is threadedly connected to a second fastening nut.

[0013] Preferably, a plurality of reinforcing blocks are fixedly connected to the inner side of the transverse sub-beam, and the distance between any two adjacent reinforcing blocks is equal.

[0014] Preferably, a limiting block is fixedly connected to one side of the connecting seat, and the limiting block is disposed in the groove of the longitudinal sub-beam.

[0015] Preferably, rope loops are installed at all four corners of the top of the frame, and the included angle of the rope loops is set to 41°. The angle of the hanging ring is the same as the angle of the rope loops.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This utility model provides a multi-purpose lifting device for rectangular concrete pipe racks. Two transverse secondary beams are installed inside the frame to support the longitudinal secondary beams. The two ends of the longitudinal secondary beams move on the transverse secondary beams via sliding components and are fixed to the main crossbeam of the frame with fastener one. Then, the two ends of the longitudinal secondary beams are adjustable and fixedly connected to connecting seats with hanging rings via fastener two. The hanging rings connect to wire ropes and lifting pins, thus forming a flexible adjustable structure. This eliminates the need to design or modify lifting devices for different sizes of rectangular pipe racks. Therefore, by adjusting the sliding components, fastener one, and fastener two, multiple sizes can be accommodated, reducing the number of lifting devices, lowering equipment costs, avoiding repeated cutting and welding of the main beam of the lifting device, preventing a decrease in safety performance due to structural modifications, eliminating potential safety hazards, and reducing the need for excessive wire rope attachment points, thus controlling the weight of the lifting device and balancing adaptability, economy, and safety. Attached Figure Description

[0018] Figure 1 This is a front view schematic diagram of the frame structure of this utility model;

[0019] Figure 2 This is a bottom view of the frame structure of this utility model;

[0020] Figure 3 This is an exploded view of the longitudinal sub-beam and frame structure of this utility model;

[0021] Figure 4 This is a partially exploded structural diagram of the longitudinal sub-beam and fasteners of this utility model.

[0022] Figure 5 This is an exploded view of the connecting seat and fastener of this utility model.

[0023] The diagram is labeled as follows: 1. Frame; 101. Main crossbeam; 102. Main longitudinal beam; 2. Transverse secondary beam; 3. Sliding assembly; 31. Slide groove; 32. Slider; 4. Longitudinal secondary beam; 5. Fastener 1; 51. Through hole 1; 52. Positioning hole 1; 53. Fastening bolt 1; 54. Fastening nut 1; 6. Connecting seat; 7. Fastener 2; 71. Through hole 2; 72. Positioning hole 2; 73. Fastening bolt 2; 74. Fastening nut 2; 8. Hanging ring; 9. Steel wire rope; 10. Lifting pin; 11. Reinforcing block; 12. Limiting block; 13. Rope ring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This utility model provides, for example Figures 1-5 The multi-purpose rectangular concrete pipe gallery product lifting tool shown includes a frame 1, two transverse secondary beams 2 are arranged symmetrically on the inner side of the frame 1, and two longitudinal secondary beams 4 are arranged at the top of both ends of the transverse secondary beams 2 through sliding components 3.

[0026] The lower surfaces at both ends of the longitudinal sub-beam 4 are attached to the frame 1, and fasteners 5 are provided at the attachment points between the frame 1 and the longitudinal sub-beam 4.

[0027] It also includes a connecting seat 6, which is sleeved on both ends of the longitudinal sub-beam 4, and fasteners 7 are provided at the contact points between the connecting seat 6 and the upper end face of the longitudinal sub-beam 4.

[0028] The lower end of the connecting seat 6 is provided with a hanging ring 8, a steel wire rope 9 is sleeved on the hanging ring 8, and a lifting needle 10 is installed at the lower end of the steel wire rope 9.

[0029] Frame 1 serves as the basic support structure. The transverse sub-beam 2 is horizontally set inside the frame 1. Its upper end face is connected to the lower end face of the longitudinal sub-beam 4 through the sliding component 3. The longitudinal sub-beam 4 can slide laterally along the transverse sub-beam 2 and is fixed in the transverse position by fastener 1 5. The connecting seats 6 at both ends of the longitudinal sub-beam 4 can slide longitudinally along the longitudinal sub-beam 4 and are fixed in the longitudinal position by fastener 2 7. The hanging ring 8 at the lower end of the connecting seat 6 is used to attach the wire rope 9. The wire rope 9 is connected to the lifting needle 10. The lifting needle 10 below the four wire ropes 9 is inserted into the lifting and flipping hole of the rectangular pipe gallery product being lifted, so as to meet the lifting of rectangular pipe gallery products of different specifications and with a total lifting load of less than 700KN, so as to realize the "one machine for multiple uses" of the rectangular pipe gallery lifting tool.

[0030] By cooperating with the sliding component 3 and the fastener 5, as well as the fastener 7, the flexible adjustment of the lifting device structure can be achieved. There is no need to design lifting devices separately for different specifications of pipe racks, which significantly reduces the number of lifting devices and equipment costs, avoids cutting and welding modifications to the main beam of the lifting device, improves structural safety, and eliminates safety hazards caused by repeated modifications.

[0031] The sliding component 3 includes a groove 31 and a slider 32. The groove 31 is opened on the upper end face of the transverse sub-beam 2, and the slider 32 is fixed on the lower end face of the longitudinal sub-beam 4. The lower end of the slider 32 passes through the groove 31 and is slidably connected within the groove of the transverse sub-beam 2.

[0032] A groove 31 is opened on the transverse sub-beam 2, and the slider 32 at the bottom of the longitudinal sub-beam 4 is embedded in the groove 31, so that the longitudinal sub-beam 4 can slide laterally along the transverse sub-beam 2; after adjusting the longitudinal sub-beam 4 to a suitable position, the longitudinal sub-beam 4 is fixed to the frame 1 by fastener 5, so as to achieve precise positioning of the transverse spacing of the longitudinal sub-beam 4 and improve the adaptability and safety of the lifting equipment.

[0033] The frame 1 includes two main crossbeams 101 and two main longitudinal beams 102. The two main crossbeams 101 and the main longitudinal beams 102 are fixed in symmetrical positions. The two ends of the transverse secondary beam 2 are fixed on the main longitudinal beams 102. The two ends of the longitudinal secondary beam 4 are attached to the upper end face of the main crossbeams 101. The connecting seat 6 is set between the transverse secondary beam 2 and the main crossbeams 101.

[0034] When assembling frame 1, first fix the two main cross beams 101 and the two main longitudinal beams 102 in symmetrical positions to form the main structure of frame 1. Fix them by welding. Then fix the two ends of the transverse secondary beam 2 to the main longitudinal beam 102 to enhance the transverse connection between the main longitudinal beams 102. Then attach the two ends of the longitudinal secondary beam 4 to the upper end face of the main cross beam 101 and fix them by subsequent fasteners 5.

[0035] The symmetrically fixed main crossbeam 101 and main longitudinal beam 102 provide stable foundation support for the overall frame 1. The transverse secondary beam 2 can provide support for the longitudinal secondary beam 4. Each component has a clear division of labor and cooperates with each other, which can evenly distribute the external load and avoid excessive local stress. At the same time, the regular connection method facilitates the installation and positioning of other components.

[0036] Fastener 5 includes a through hole 51 and multiple positioning holes 52. The through hole 51 is opened at both ends of the longitudinal sub-beam 4, and the multiple positioning holes 52 are evenly distributed on the main crossbeam 101. A fastening bolt 53 is inserted into the inner cavity of the through hole 51. The lower end of the fastening bolt 53 passes through the corresponding positioning hole 52 and is threaded with a fastening nut 54.

[0037] When installing the longitudinal sub-beam 4, adjust the position of the longitudinal sub-beam 4 on the main crossbeam 101 according to actual needs, so that the through holes 51 at both ends of the longitudinal sub-beam 4 are aligned with the corresponding positioning holes 52 on the main crossbeam 101. Insert the fastening bolts 53 into the through holes 51 and through the positioning holes 52, and finally tighten the fastening nuts 54 to complete the fixing of the longitudinal sub-beam 4 to the main crossbeam 101.

[0038] The even distribution of multiple positioning holes 52 allows the longitudinal sub-beam 4 to be flexibly adjusted in installation position according to usage requirements, improving the adaptability of the frame 1. The cooperation between the fastening bolts 53 and the fastening nuts 54 ensures that the longitudinal sub-beam 4 is firmly connected to the main crossbeam 101, preventing loosening, while also facilitating disassembly and assembly, and making it convenient for later maintenance or adjustment.

[0039] Fastener 2 7 includes through hole 2 71 and multiple positioning holes 2 72. Through hole 2 71 is opened on the top of connecting seat 6. Multiple positioning holes 2 72 are evenly distributed on the upper end face of longitudinal sub-beam 4. Fastening bolt 2 73 is inserted into through hole 2 71. The lower end of fastening bolt 2 73 passes through the corresponding positioning hole 2 72 and is threadedly connected to fastening nut 2 74.

[0040] When installing the connecting seat 6, align the through hole 71 on the top of the connecting seat 6 with the positioning hole 72 on the upper end face of the longitudinal sub-beam 4, insert the fastening bolt 73 through the positioning hole 72, and tighten the fastening nut 74 to fix the connecting seat 6 to the longitudinal sub-beam 4.

[0041] The design of multiple positioning holes 72 allows the connecting seat 6 to be adjusted on the longitudinal sub-beam 4 according to the load-bearing requirements, thereby adjusting the position of the lifting needle 10 and enhancing the flexibility of the lifting needle 10. The cooperation between the fastening bolt 73 and the fastening nut 74 ensures that the connecting seat 6 and the longitudinal sub-beam 4 are tightly connected, preventing the connecting seat 6 from shaking and improving the stability of the overall structure.

[0042] Multiple reinforcing blocks 11 are fixedly connected to the inner side of the transverse sub-beam 2, and the distance between any two adjacent reinforcing blocks 11 is equal.

[0043] When the transverse sub-beam 2 is subjected to force (such as bearing heavy objects or being subjected to transverse impact force), the multiple reinforcing blocks 11 on the inner side will share the stress with the transverse sub-beam 2 body. Since the distance between adjacent reinforcing blocks 11 is equal, the stress can be evenly distributed to each reinforcing block 11 and the entire transverse sub-beam 2.

[0044] The equidistantly distributed reinforcing blocks 11 can effectively enhance the structural strength and deformation resistance of the transverse sub-beam 2, prevent the transverse sub-beam 2 from bending or breaking due to excessive local stress, extend the service life of the transverse sub-beam 2, and at the same time ensure the support stability of the transverse sub-beam 2 on the main longitudinal beam 102.

[0045] A limiting block 12 is fixedly connected to one side of the connecting seat 6, and the limiting block 12 is set in the groove of the longitudinal sub-beam 4;

[0046] When installing the connecting seat 6, align the limiting block 12 on one side of the connecting seat 6 with the slot of the longitudinal sub-beam 4 and insert it into it. Then fix the connecting seat 6 with the fastener 7. At this time, the limiting block 12 will restrict the movement of the connecting seat 6 along the width direction of the longitudinal sub-beam 4.

[0047] The fit between the limiting block 12 and the slot of the longitudinal sub-beam 4 provides additional positioning and limiting for the connecting seat 6, preventing the connecting seat 6 from shifting laterally under stress or vibration, further enhancing the stability of the connection between the connecting seat 6 and the longitudinal sub-beam 4, and avoiding structural loosening or uneven load distribution caused by the displacement of the connecting seat 6.

[0048] Rope rings 13 are installed at the corners of the top of the frame 1, and the included angle of the rope rings 13 is set to 41°. The angle of the hanging ring 8 is the same as the angle of the rope rings 13.

[0049] The rope loop 1314 at the top corner of the frame 11 is used to connect the wire rope 9 of the external lifting equipment. The 41° included angle design makes the tension direction of the wire rope 9 match the center of gravity of the frame 1, forming a stable force balance system. The specific angle layout of the rope loop 13 can evenly distribute the load during lifting, reduce local stress concentration of the frame 1, avoid the frame 1 from tilting or being damaged due to uneven force during lifting, and improve the stability and safety of the connection between the lifting device and the lifting equipment.

[0050] During the design and manufacturing process of the lower wire rope 9 of the main lifting device, the wire rope 9 was formed using the lead-zinc pressing method. This was done to eliminate the difficulty in aligning and inserting the lifting needle 10 below the wire rope 9 with the lifting hole of the rectangular pipe gallery due to the angle problem.

[0051] In practical use, first adjust the transverse spacing of the longitudinal sub-beams 4 according to the external dimensions (length, width and position of the lifting flip hole sleeve) of the rectangular pipe gallery to be lifted, loosen the fasteners 5 (fastening bolts 53 and fastening nuts 54), and the longitudinal sub-beams 4 slide laterally along the slide groove 31 of the transverse sub-beams 2 through the bottom slider 32, so that the longitudinal sub-beams 4 on both sides are symmetrically distributed to the target spacing, and then tighten the fastening nuts 54 to fix them.

[0052] Then adjust the longitudinal position of the hanging ring 8, loosen the fastener 2 7 (fastening bolt 2 73 and fastening nut 2 74), and the connecting seat 6 slides longitudinally along the longitudinal sub-beam 4. According to the position of the positioning hole 2 72 at the top of the longitudinal sub-beam 4, adjust the hanging ring 8 to the mark point corresponding to the longitudinal position of the pipe gallery lifting hole, and tighten the fastening nut 2 74 to fix it, ensuring that the positions of the hanging rings 8 on both sides are symmetrical.

[0053] Subsequently, the lifting needle 10 at the lower end of the wire rope 9 is inserted into the lifting and flipping hole sleeve of the pipe gallery. The upper end of the wire rope 9 is sleeved on the hanging ring 8 at the lower end of the connecting seat 6. At the same time, the rope ring 13 at the top corner of the frame 1 (composed of the main cross beam 101 and the main longitudinal beam 102) is connected to the wire rope 9 of the external lifting equipment at an angle of 41°. This angle design makes the load tension direction match the center of gravity of the frame 1, avoiding local stress concentration. The wire rope 9 is formed by the lead-zinc pressing method to ensure that the lower end lifting needle 10 is accurately aligned with the lifting hole of the pipe gallery, eliminating the problem of insertion difficulty.

[0054] After the final lifting is completed, loosen fastener 5 and fastener 7, and reset the longitudinal sub-beam 4 and hanging ring 8 to their initial positions or adjust them according to the needs of the next use.

[0055] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-purpose rectangular concrete pipe gallery product lifting device, comprising a frame (1), characterized in that: Two transverse sub-beams (2) are provided at symmetrical positions on the inner side of the frame (1), and two longitudinal sub-beams (4) are provided at the top of both ends of the transverse sub-beams (2) through sliding components (3). The lower surfaces of both ends of the longitudinal sub-beam (4) are attached to the frame (1), and fasteners (5) are provided at the attachment points of the frame (1) and the longitudinal sub-beam (4). It also includes a connecting seat (6), which is sleeved on both ends of the longitudinal sub-beam (4), and fasteners (7) are provided at the contact point between the connecting seat (6) and the upper end face of the longitudinal sub-beam (4). The lower end of the connecting seat (6) is provided with a hanging ring (8), a steel wire rope (9) is sleeved on the hanging ring (8), and a lifting needle (10) is installed at the lower end of the steel wire rope (9).

2. The multi-purpose rectangular concrete pipe gallery lifting tool according to claim 1, characterized in that: The sliding assembly (3) includes a groove (31) and a slider (32). The groove (31) is opened on the upper end face of the transverse sub-beam (2), and the slider (32) is fixed on the lower end face of the longitudinal sub-beam (4). The lower end of the slider (32) passes through the groove (31) and is slidably connected in the groove of the transverse sub-beam (2).

3. The multi-purpose rectangular concrete pipe gallery lifting tool according to claim 2, characterized in that: The frame (1) includes two main crossbeams (101) and two main longitudinal beams (102). The two main crossbeams (101) and the main longitudinal beams (102) are fixed in symmetrical positions. The two ends of the transverse sub-beam (2) are fixed on the main longitudinal beams (102). The two ends of the longitudinal sub-beam (4) are attached to the upper end face of the main crossbeam (101). The connecting seat (6) is set between the transverse sub-beam (2) and the main crossbeam (101).

4. The multi-purpose rectangular concrete pipe gallery lifting tool according to claim 3, characterized in that: The fastener 1 (5) includes a through hole 1 (51) and multiple positioning holes 1 (52). The through hole 1 (51) is opened at both ends of the longitudinal sub-beam (4). The multiple positioning holes 1 (52) are evenly distributed on the main crossbeam (101). A fastening bolt 1 (53) is inserted into the inner cavity of the through hole 1 (51). The lower end of the fastening bolt 1 (53) passes through the corresponding positioning hole 1 (52) and is threadedly connected to a fastening nut 1 (54).

5. The multi-purpose rectangular concrete pipe gallery lifting tool according to claim 4, characterized in that: The second fastener (7) includes a second through hole (71) and a plurality of second positioning holes (72). The second through hole (71) is opened on the top of the connecting seat (6). The plurality of second positioning holes (72) are evenly distributed on the upper end face of the longitudinal sub-beam (4). A second fastening bolt (73) is inserted into the second through hole (71). The lower end of the second fastening bolt (73) passes through the corresponding second positioning hole (72) and is threadedly connected to a second fastening nut (74).

6. The multi-purpose rectangular concrete pipe gallery lifting tool according to claim 5, characterized in that: Multiple reinforcing blocks (11) are fixedly connected to the inner side of the transverse sub-beam (2), and the distance between two adjacent reinforcing blocks (11) is equal.

7. A multi-purpose rectangular concrete pipe gallery lifting tool according to claim 6, characterized in that: A limiting block (12) is fixedly connected to one side of the connecting seat (6), and the limiting block (12) is set in the groove of the longitudinal sub-beam (4).

8. The multi-purpose rectangular concrete pipe gallery lifting tool according to claim 1, characterized in that: Rope rings (13) are installed at the corners of the top of the frame (1), and the included angle of the rope rings (13) is set to 41°. The angle of the hanging ring (8) is the same as the angle of the rope rings (13).

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