An auxiliary device for field steel beam splicing

Abstract

The utility model provides a kind of for on-site steel beam splicing auxiliary device, it is related to steel beam splicing field.The auxiliary device for on-site steel beam splicing includes crane and chain hoist;Crane is detachably connected with steel beam by sling, can accurately hoist the steel beam to be spliced to preset alignment position, provides stable initial condition for subsequent splicing operation.Hand chain hoist includes chain and the hook of chain both ends, two hooks are respectively hung in adjacent steel beam, when chain is hauled, adjacent steel beam can be driven relative movement along splicing direction, to realize the alignment of steel beam.By the cooperative work of crane and hand chain hoist, manual intervention can be effectively reduced, the position adjustment efficiency and accuracy in the process of steel beam splicing are improved, and the security risk brought by traditional manual adjustment mode is reduced.Meanwhile, the device structure is simple, convenient to operate, and is suitable for different specifications and models steel beam on-site splicing scene.

Description

Technical Field

[0001] This utility model belongs to the technical field of steel beam splicing, and in particular relates to an auxiliary device for on-site steel beam splicing. Background Technology

[0002] Steel beams are common load-bearing components in steel structure buildings and are also a major part of bridge decks. In the on-site construction of large-scale building projects, the splicing of steel beams is a crucial step.

[0003] In traditional on-site steel beam splicing operations, manual adjustment of the steel beams is often carried out using simple tools such as crowbars and jacks. This not only consumes a lot of manpower and time, but also makes it difficult to guarantee splicing accuracy. Especially in the case of large steel beams or high-altitude operations, there are also significant safety hazards in operation. Utility Model Content

[0004] In view of this, the present invention provides an auxiliary device for on-site steel beam splicing, which aims to solve the problem of low efficiency caused by relying on manual adjustment in the traditional steel beam splicing process.

[0005] The technical solution of this utility model is implemented as follows: This utility model embodiment provides an auxiliary device for on-site steel beam splicing, used for splicing multiple steel beams. The auxiliary device includes: a crane, which is detachably connected to the steel beams via slings, for hoisting the steel beams to be spliced ​​to a preset alignment position; and a hand-operated hoist, including a chain and two first hooks respectively fixed to both ends of the chain, the two first hooks being hooked one-to-one with two adjacent steel beams; when the chain is in a traction state, the chain can drive the adjacent steel beams to move relative to each other along the splicing direction and then align them.

[0006] In one embodiment, the steel beam is provided with four lifting lugs, which are symmetrically distributed at two ends of the steel beam, and the two lifting lugs at each end are spaced apart along the width direction of the steel beam.

[0007] In one embodiment, the bottom suspension end of the sling is detachably provided with a second hook adapted to the lifting lug, and the inner wall of the second hook is provided with anti-slip texture.

[0008] In one embodiment, the splicing ends of the two adjacent steel beams are respectively connected to a connecting plate, and the connecting plate is provided with a clearance notch for avoiding the weld between the two adjacent steel beams.

[0009] In one embodiment, the connecting plates are arranged in a plurality of spaced-apart configurations along the extension direction of the weld between two adjacent steel beams.

[0010] In one embodiment, the system further includes a magnetic base and a laser emitter. The magnetic base is attached to the side of the steel beam, and the laser emitter is disposed on the magnetic base. The laser emitter is capable of emitting a laser beam extending along the length of the steel beam to assist in determining whether two adjacent steel beams are on the same straight line.

[0011] In one embodiment, a height adjustment mechanism is provided between the magnetic base and the laser emitter, and the laser emitter can adjust its position along the height direction of the magnetic base through the height adjustment mechanism; and / or, a rotary connection structure is provided between the magnetic base and the laser emitter, and the laser emitter can rotate around the central axis of the magnetic base through the rotary connection structure.

[0012] In one embodiment, the height adjustment structure is a telescopic sleeve structure, the sleeve structure includes a sleeve and an adjusting rod, the sleeve is vertically fixed to the top of the magnetic base and is hollow inside, the adjusting rod is sleeved inside the sleeve and can slide along its axial direction, and the laser emitter is installed at the top of the adjusting rod; a first locking bolt is connected between the sleeve and the adjusting rod.

[0013] In one embodiment, the rotary connection structure includes a rotary seat fixed to the top of the height adjustment mechanism and a connector fixedly connected to the laser emitter; the rotary seat is hollow columnar and has an annular groove on its inner wall; the outer wall of the connector is provided with an annular protrusion that matches the annular groove, and the annular protrusion is embedded in the annular groove; a second locking bolt for locking the rotation angle is provided between the rotary seat and the annular protrusion.

[0014] The auxiliary device for on-site steel beam splicing provided in this embodiment includes a crane and a hand-operated hoist. The crane is detachably connected to the steel beam via slings, enabling precise hoisting of the steel beam to be spliced ​​to a preset alignment position, providing stable initial conditions for subsequent splicing operations. The hand-operated hoist includes a chain and hooks at both ends of the chain. The two hooks are respectively attached to adjacent steel beams. When the chain is pulled, it drives the adjacent steel beams to move relative to each other along the splicing direction, thereby achieving alignment. Through the coordinated work of the crane and the hand-operated hoist, manual intervention can be effectively reduced, improving the efficiency and accuracy of position adjustment during steel beam splicing and reducing the safety risks associated with traditional manual adjustment methods. Furthermore, the device has a simple structure, is easy to operate, and is suitable for on-site splicing scenarios of steel beams of different specifications and models, providing reliable auxiliary support for steel beam splicing construction. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 A front view of the hoisting of the auxiliary device provided by this utility model; Figure 2 A perspective view of the hoisting of the auxiliary device provided by this utility model; Figure 3 A perspective view of the steel beam splicing of the auxiliary device provided by this utility model; Figure 4 A schematic diagram of the connecting plate provided by this utility model.

[0017] Explanation of reference numerals in the attached figures: 100. Auxiliary device; 1. Crane; 2. Sling; 21. Second hook; 3. Hand chain hoist; 31. Chain; 32. First hook; 4. Magnetic base; 5. Laser emitter; 6. Height adjustment structure; 61. Sleeve; 62. Adjusting rod; 63. First locking bolt; 7. Rotary connection structure; 71. Rotary seat; 72. Connector; 73. Second locking bolt; 200. Steel beam; 201. Lifting lug; 202. Connecting plate; 2021. Clearance gap. Detailed Implementation

[0018] 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 scope of protection of the present utility model.

[0019] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0020] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0021] In traditional on-site steel beam splicing operations, manual adjustment of the steel beams is often carried out using simple tools such as crowbars and jacks. This not only consumes a lot of manpower and time, but also makes it difficult to guarantee splicing accuracy. Especially in the case of large steel beams or high-altitude operations, there are also significant safety hazards in operation.

[0022] In view of this, the present invention provides an auxiliary device for on-site steel beam splicing, which aims to solve the problem of low efficiency caused by relying on manual adjustment in the traditional steel beam splicing process.

[0023] The auxiliary equipment for on-site steel beam splicing includes a crane and a hand-operated hoist. The crane is detachably connected to the steel beam via slings, enabling precise hoisting of the beams to be spliced ​​to the preset alignment position, providing stable initial conditions for subsequent splicing operations. The hand-operated hoist includes a chain and hooks at both ends of the chain. The two hooks are respectively attached to adjacent steel beams. When the chain is pulled, it drives the adjacent steel beams to move relative to each other along the splicing direction, thereby achieving alignment. The coordinated operation of the crane and the hand-operated hoist effectively reduces manual intervention, improves the efficiency and accuracy of position adjustment during steel beam splicing, and reduces the safety risks associated with traditional manual adjustment methods. Furthermore, the device has a simple structure, is easy to operate, and is suitable for on-site splicing scenarios of steel beams of different specifications and models, providing reliable auxiliary support for steel beam splicing construction.

[0024] In some embodiments, the steel beam 200 is provided with four lifting lugs 201, which are symmetrically distributed at both ends of the steel beam 200, with the two lifting lugs 201 at each end spaced apart along the width direction of the steel beam 200. This symmetrical distribution structure enables the steel beam 200 to be subjected to more uniform force during hoisting by the crane 1, avoiding tilting of the steel beam 200 due to unbalanced hoisting force. At the same time, it provides symmetrical hook-up points for the hand chain hoist 3, ensuring better synchronization when adjacent steel beams 200 move along the splicing direction, and further improving alignment accuracy.

[0025] In the actual splicing process, since a large number of embedded nails for connecting concrete are welded on the steel beam 200, a certain area needs to be reserved on the edge of the steel beam 200 used for splicing so that the connecting plate 202 can be welded.

[0026] In some embodiments, the bottom suspension end of the sling 2 is provided with a second hook 21 adapted to the lifting lug 201, and the inner wall of the second hook 21 is provided with anti-slip texture. The anti-slip texture can increase the friction between the connecting ring and the lifting lug 201, prevent the sling 2 from sliding due to vibration or external force during the hoisting process, and avoid accidental displacement of the steel beam 200. At the same time, the detachable design also facilitates the quick replacement of the adapted second hook 21 according to the specifications of the lifting lug 201, improving the versatility of the device.

[0027] In some embodiments, the splicing ends of two adjacent steel beams 200 are respectively connected to a connecting plate 202, and the connecting plate 202 is provided with a clearance notch 2021 for avoiding the weld between the two adjacent steel beams 200.

[0028] In actual operation, the connecting plate 202 can be pre-fixed to the spliced ​​end of the steel beam 200. After the steel beam 200 is aligned by the hand-operated hoist 3, the relative position of the two steel beams 200 can be temporarily fixed to prevent the steel beam 200 from shifting during subsequent welding. The design of the clearance notch 2021 will not block the weld area, ensuring that the welding operation can proceed smoothly.

[0029] Furthermore, multiple connecting plates 202 are arranged at intervals along the extension direction of the weld between adjacent steel beams 200. The number can be flexibly adjusted according to the length of the steel beams 200 and the splicing strength requirements, further improving the overall rigidity of the steel beams 200 during splicing and avoiding welding defects caused by the shaking of the steel beams 200 during the welding process.

[0030] In some embodiments, the auxiliary device 100 for splicing steel beams 200 on site further includes a magnetic base 4 and a laser emitter 5. Specifically, the magnetic base 4 is attached to the side of the steel beam 200, and the laser emitter 5 is disposed on the magnetic base 4, and the laser emitter 5 is capable of emitting a laser beam extending along the length direction of the steel beam 200.

[0031] The magnetic base 4 features a strong magnetic design, allowing it to stably adhere to the side of the steel beam 200 without the need for bolts or other connectors. Installation and disassembly are convenient and do not damage the surface of the steel beam 200, making it particularly suitable for temporary on-site fixing. The laser beam emitted by the laser emitter 5 has high linearity. When two adjacent steel beams 200 are to be joined, a set of magnetic bases 4 and laser emitters 5 can be installed on each of the two beams. The laser beam emitted by the laser emitter 5 of one steel beam 200 extends along its own length. If the laser beam of the other steel beam 200 coincides with this beam or remains parallel within a preset deviation range, it can be visually determined that the two steel beams 200 are aligned in the length direction. If there is any misalignment, it can be corrected in real time using the hand-operated hoist 3 until the laser beam meets the alignment requirements.

[0032] This laser-assisted alignment method solves the problems of low accuracy and susceptibility to ambient light or working height in traditional manual visual judgment (such as relying on tape measure measurement and string alignment). Especially in large steel beam splicing (large span and wide cross section) or high-altitude operation scenarios, it can significantly improve the accuracy and efficiency of alignment judgment, provide a clear reference for the subsequent precise adjustment of the hand chain hoist 3, and further shorten the adjustment time of splicing operation.

[0033] In some embodiments, a height adjustment mechanism is provided between the magnetic base 4 and the laser emitter 5, and the laser emitter 5 can adjust its position along the height direction of the magnetic base 4 through the height adjustment mechanism.

[0034] Specifically, the height adjustment mechanism may include a hollow sleeve 61 fixed to the top of the magnetic base 4, and an adjusting rod 62 connected to the laser emitter 5 and slidably inserted into the sleeve 61. The inner wall of the sleeve 61 is adapted to the outer wall of the adjusting rod 62 to ensure that the adjusting rod 62 slides stably along the axial direction of the sleeve 61. A first locking bolt 63 is also threaded onto the side wall of the sleeve 61, and the end of the first locking bolt 63 can pass through the side wall of the sleeve 61 and abut against the outer wall of the adjusting rod 62. When it is necessary to adjust the height of the laser emitter 5, the first locking bolt 63 is loosened, and the adjusting rod 62 is pushed or pulled, so that the length of the adjusting rod 62 extending out of the sleeve 61 changes, thereby causing the laser emitter 5 to rise or fall along the height direction of the magnetic base 4; after adjusting to the target height, the first locking bolt 63 is tightened, and the adjusting rod 62 is fixed in the sleeve 61 by the friction between the bolt end and the adjusting rod 62, thus keeping the position of the laser emitter 5 stable.

[0035] This height adjustment mechanism can adapt to splicing scenarios with steel beams 200 of varying cross-sectional heights. For example, for a taller steel beam 200, the laser emitter 5 can be adjusted to a higher position, allowing the laser beam to extend along the upper edge of the beam 200; for a shorter steel beam 200, the laser emitter 5 can be lowered, bringing the laser beam closer to the lower edge of the beam 200. This ensures that the laser beam always extends along the effective stress area of ​​the beam 200, preventing deviation of the laser beam from the effective alignment reference line due to differences in beam height. Furthermore, the flexible height adjustment facilitates multiple alignment checks at different height positions on the same steel beam 200, further improving splicing accuracy.

[0036] In some embodiments, a rotary connection structure 7 is provided between the magnetic base 4 and the laser emitter 5, and the laser emitter 5 can rotate around the central axis of the magnetic base 4 through the rotary connection structure 7.

[0037] Specifically, the rotating connection structure 7 includes a rotating base 71 fixed to the top of the height adjustment mechanism and a connector 72 fixedly connected to the laser emitter 5. The rotating base 71 is hollow and cylindrical, with an annular groove on its inner wall. The outer wall of the connector 72 has an annular protrusion that fits into the annular groove. The annular protrusion is embedded in the annular groove, and a small gap is left between them to reduce rotational friction. When it is necessary to adjust the angle of the laser emitter 5, pushing the laser emitter 5 will cause the connector 72 to rotate around the central axis of the rotating base 71 (i.e., the central axis of the magnetic base 4). The annular protrusion slides circumferentially along the annular groove, realizing the 360-degree rotational adjustment of the laser emitter 5.

[0038] To prevent accidental angular deviation during rotation, the rotating connection structure 7 can also be equipped with a positioning component: for example, a second locking bolt 73 for locking the rotation angle is provided between the rotating disk and the fixed disk. Alternatively, multiple positioning holes are evenly provided on the side wall of the rotating base 71, and corresponding elastic positioning pins are provided on the side wall of the connector 72. The ends of the positioning pins can be inserted into the positioning holes under the action of spring force. When the target angle is reached, the positioning pins automatically engage with the corresponding positioning holes, temporarily fixing the angle of the laser emitter 5; if readjustment is required, simply press the positioning pins to disengage them from the positioning holes to continue rotation.

[0039] This rotating connection structure 7 allows the laser emitter 5 to flexibly adapt to steel beam 200 splicing scenarios at different angles. For example, when splicing horizontal steel beams 200, the laser beam can be adjusted to a horizontal direction; when splicing inclined steel beams 200, the laser emitter 5 can be rotated to extend the beam along the inclined direction of the steel beam 200; in vertical steel beam 200 docking scenarios, the beam can also be adjusted to a vertically extended state by rotation. Through rotational adjustment, it is ensured that the laser beam always remains consistent with the length direction of the steel beam 200, providing an alignment reference for splicing steel beams 200 in different postures, further expanding the applicability of the device. Alternatively, a second locking bolt 73 for locking the rotation angle is provided between the rotating disk and the fixed disk, and the angle is fixed by the friction between the second locking bolt 73 and the fixed disk.

[0040] This utility model embodiment also provides an operation method for splicing 200 steel beams on site.

[0041] The operation method includes the following steps: First, the steel beams 200 to be spliced ​​are hoisted to the preset alignment position using a crane 1. The symmetrically distributed lifting lugs 201 on the steel beams 200 ensure uniform force distribution during hoisting. Then, the two hooks of the hand-operated hoist 3 are respectively attached to the lifting lugs 201 of adjacent steel beams 200. The traction chain 31 drives the adjacent steel beams 200 to move relative to each other along the splicing direction, initially adjusting the position of the steel beams 200. Next, magnetic bases 4 and laser emitters 5 are installed on adjacent steel beams 200 respectively. The height and rotation angle of the laser emitters 5 are adjusted to extend the laser beam along the length of the steel beams 200. The alignment of the steel beams 200 is judged by observing the overlap or parallelism of the laser beams. If there is any misalignment, it is corrected in real time using the hand-operated hoist 3 until the laser alignment meets the requirements. Finally, a connecting plate 202 with a clearance notch 2021 is connected to the splicing end of the steel beam 200 to temporarily fix the relative position of the steel beam 200, completing the preparatory work before splicing so that subsequent welding operations can proceed smoothly. Throughout the operation, the locking bolts can lock the relative angle between the rotating disk and the fixed disk as needed to ensure that components such as the laser emitter 5 remain stable during use and to avoid affecting the alignment accuracy due to angular deviation.

[0042] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An auxiliary device for on-site steel beam splicing, used for splicing multiple steel beams, characterized in that, include: A crane, which is detachably connected to the steel beam via slings, is used to lift the steel beam to be spliced ​​to a preset alignment position; A hand-operated chain hoist includes a chain and two first hooks fixed to both ends of the chain. The two first hooks are hooked one-to-one with two adjacent steel beams. When the chain is in a traction state, the chain can drive the adjacent steel beams to move relative to each other along the splicing direction and then align them.

2. The auxiliary device for on-site steel beam splicing according to claim 1, characterized in that, The steel beam is provided with four lifting lugs, which are symmetrically distributed at the two ends of the steel beam, and the two lifting lugs at each end are spaced apart along the width direction of the steel beam.

3. The auxiliary device for on-site steel beam splicing according to claim 2, characterized in that, The bottom suspension end of the sling is detachably provided with a second hook that is adapted to the lifting lug, and the inner wall of the second hook is provided with anti-slip texture.

4. The auxiliary device for on-site steel beam splicing according to claim 1, characterized in that, The splicing ends of the two adjacent steel beams are respectively connected to connecting plates, and the connecting plates are provided with avoidance notches to avoid the weld between the two adjacent steel beams.

5. The auxiliary device for on-site steel beam splicing according to claim 4, characterized in that, The connecting plates are arranged in multiple intervals along the extension direction of the weld between two adjacent steel beams.

6. The auxiliary device for on-site steel beam splicing according to claim 1, characterized in that, It also includes a magnetic base and a laser emitter. The magnetic base is attached to the side of the steel beam, and the laser emitter is disposed on the magnetic base. The laser emitter can emit a laser beam that extends along the length of the steel beam to help determine whether two adjacent steel beams are on the same straight line.

7. The auxiliary device for on-site steel beam splicing according to claim 6, characterized in that, A height adjustment mechanism is provided between the magnetic base and the laser emitter, allowing the laser emitter to adjust its position along the height direction of the magnetic base via the height adjustment mechanism; and / or A rotatable connection structure is provided between the magnetic base and the laser emitter, and the laser emitter can rotate around the central axis of the magnetic base through the rotatable connection structure.

8. The auxiliary device for on-site steel beam splicing according to claim 7, characterized in that, The height adjustment structure is a telescopic sleeve structure, which includes a sleeve and an adjusting rod. The sleeve is vertically fixed to the top of the magnetic base and is hollow inside. The adjusting rod is sleeved inside the sleeve and can slide along its axial direction. The laser emitter is installed at the top of the adjusting rod. A first locking bolt connects the sleeve and the adjusting rod.

9. The auxiliary device for on-site steel beam splicing according to claim 8, characterized in that, The rotating connection structure includes a rotating seat fixed to the top of the height adjustment mechanism and a connector fixedly connected to the laser emitter; the rotating seat is hollow columnar and has an annular groove on its inner wall; the outer wall of the connector is provided with an annular protrusion that matches the annular groove, and the annular protrusion is embedded in the annular groove. A second locking bolt for locking the rotation angle is provided between the rotating seat and the annular protrusion.

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