A fixed locking device for steel structure product construction

Abstract

The utility model discloses a kind of fixed locking devices of steel structure product construction, the fixed locking device of steel structure product construction includes operation platform, and plate piece locking assembly, vertical pipe locking assembly and horizontal pipe locking assembly are provided on operation platform, wherein, plate piece locking assembly is used to fix plate product;Vertical pipe locking assembly is used to vertically fix tubular product;Horizontal pipe locking assembly is used to horizontally fix tubular product;The lower portion of operation platform is provided with rotating wheel component, and rotating wheel component is used to drive mobile platform to move.The construction fixed locking device of the steel structure product, successfully realized the integrated clamping function to multiple forms workpieces, for example, plate product and tubular product, effectively solved the problem of frequently replacing different clamps in traditional construction, significantly improved operation efficiency.The device is equipped with movable rotating wheel component, so it has excellent mobility, is convenient for flexible transfer in complex marine engineering or construction site, meets the demand of multi-position welding.

Description

Technical Field

[0001] This utility model belongs to the field of welding construction, and in particular relates to a fixing and locking device for the construction of steel structure products. Background Technology

[0002] In the construction of marine steel structures, the grinding, alignment, and welding of small-diameter pipelines are large-scale and complex tasks. Traditional methods for pipe alignment rely solely on angle steel for horizontal adjustment. However, during spot welding, the inability to effectively clamp and secure the pipes easily leads to misalignment. Furthermore, for completed tack welded sections, the lack of a fixed welding workbench prevents welds in certain locations from being welded in the optimal position, impacting both construction efficiency and weld quality.

[0003] Therefore, there is an urgent need to design a fixing and locking device for the construction of steel structure products to solve the problems mentioned above. Utility Model Content

[0004] To address the technical problem mentioned in the background art that special welds cannot be constructed in the optimal position, resulting in reduced welding efficiency and quality, a fixing and locking device for the construction of steel structure products is provided.

[0005] To achieve the above objectives, the specific technical solution of the fixing and locking device for the construction of steel structure products according to this utility model is as follows: A fixing and locking device for the construction of steel structure products includes an operating platform, on which the following are provided: Plate locking assembly, used to fix plate-shaped products; Riser locking assembly, used to vertically fix tubular products; Horizontal tube locking assembly, used to horizontally fix tubular products; A rotating wheel assembly is located below the operating platform, which is used to move the mobile platform.

[0006] Furthermore, the plate locking assembly includes multiple fixed plates spaced apart and multiple plate locking units, which can pass through the fixed plates in sequence to position the plate-shaped product in the gap between adjacent fixed plates.

[0007] Furthermore, the plate locking unit includes a first bolt and a first nut that can cooperate with the first bolt. Each fixing plate is provided with a corresponding insertion hole. The opening of the first nut is flush with the insertion hole. The first bolt can be inserted into the insertion hole after being threadedly connected with the first nut to lock the plate-shaped product located in the gap between adjacent fixing plates.

[0008] Furthermore, the plate locking units are divided into two groups, located at both ends of the fixed plate, with at least one plate locking unit configured at either end of the fixed plate.

[0009] Furthermore, the riser locking assembly includes a support and a riser locking unit that can slide relative to the support. The riser locking unit includes a pair of arc-shaped locking parts that can move closer to or further away from each other to clamp or prevent loosening of the tubular product located between the arc-shaped locking parts.

[0010] Furthermore, the riser locking unit includes a second bolt and a second nut that can mate with the second bolt. The second nut is located on the support. One arc-shaped locking part is located on the operating platform, and the other is located on the second bolt. The arc-shaped locking part located on the second bolt can move toward the arc-shaped locking part located on the operating platform to vertically clamp or vertically prevent loosening of the tubular product located between the arc-shaped locking parts.

[0011] Furthermore, two riser locking components are provided, located at both ends of the operating platform respectively.

[0012] Furthermore, the horizontal tube locking assembly includes an L-shaped bracket and a horizontal tube locking unit that can slide relative to the L-shaped bracket. The horizontal tube locking unit can form an inverted U-shaped structure with the L-shaped bracket to horizontally clamp or horizontally release the tubular product located in the gap of the inverted U-shaped structure.

[0013] Furthermore, the horizontal pipe locking unit includes a third bolt and a third nut that can mate with the third bolt. One end of the L-shaped bracket is connected to the operating platform, and the other end is connected to the third nut. The third bolt can be threaded into the third nut and form an inverted U-shaped structure with the L-shaped bracket.

[0014] Furthermore, the operating platform is equipped with multiple support legs, and each support leg has a wheel assembly at its bottom. The wheel assembly includes a caster wheel and a baffle plate, with the baffle plate located on the side of the caster wheel to protect it.

[0015] The fixing and locking device for steel structure product construction of this utility model has the following advantages: This device successfully achieves integrated clamping of workpieces of various shapes (plate-shaped, vertical tubular, and horizontal tubular), effectively solving the problem of frequent changes of different clamps in traditional construction and significantly improving work efficiency. The device is equipped with a movable wheel assembly, giving it excellent mobility and facilitating flexible transfer in complex marine engineering or construction sites, meeting the needs of multi-position welding. The operating platform, as the basic load-bearing structure, integrates three major locking components, achieving "one machine for multiple uses," which not only reduces equipment investment costs but also improves space utilization. This device is particularly suitable for high-precision operations such as grinding, assembly, and welding of small-diameter pipelines, effectively avoiding problems such as misalignment and displacement caused by workpiece loosening, and strongly guaranteeing construction quality. Attached Figure Description

[0016] Figure 1 A schematic diagram of the fixing and locking device for the steel structure product construction of this utility model and the structure after product assembly; Figure 2 A schematic diagram of the fixing and locking device for the construction of the steel structure product of this utility model and the structure of the product; Figure 3 This is a structural schematic diagram of the plate locking assembly of this utility model; Figure 4 This is a schematic diagram of the riser locking assembly of this utility model; Figure 5 This is a schematic diagram of the horizontal tube locking assembly of this utility model.

[0017] Explanation of markings in the diagram: 1. Plate locking assembly; 11. Fixing plate; 12. Plate locking unit; 121. First bolt; 122. First nut; 2. Riser locking assembly; 21. Support; 22. Riser locking unit; 221. Arc-shaped locking part; 222. Second bolt; 223. Second nut; 3. Horizontal tube locking assembly; 31. L-shaped bracket; 32. Horizontal tube locking unit; 321. Third bolt; 322. Third nut; 4. Caster assembly; 41. Casters; 42. Baffles; 100. Operating platform; 101. Support leg; 200. Plate-shaped product; 300. Tubular product. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this invention and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0020] The following is a reference to the appendix. Figure 1 To be continued Figure 5 This utility model describes a fixing and locking device for the construction of steel structure products.

[0021] This embodiment provides a fixing and locking device for the construction of steel structure products. Figure 1 This is a schematic diagram of the fixing and locking device for the steel structure product construction in this embodiment and the structure after the product is assembled. Figure 2 This is a schematic diagram of the fixing and locking device for the steel structure product construction in this embodiment, and the product's structure. Figure 1 and Figure 2 As shown, the fixing and locking device for steel structure product construction includes an operating platform 100. The operating platform 100 is equipped with a plate locking assembly 1, a vertical pipe locking assembly 2, and a horizontal pipe locking assembly 3. The plate locking assembly 1 is used to fix the plate-shaped product 200; the vertical pipe locking assembly 2 is used to fix the tubular product 300 vertically; and the horizontal pipe locking assembly 3 is used to fix the tubular product 300 horizontally. A rotating wheel assembly 4 is provided below the operating platform 100, which is used to drive the moving platform to move.

[0022] Understandably, the construction fixing and locking device for this steel structure product successfully achieves integrated clamping of workpieces of various shapes, such as plate-shaped products 200 and tubular products 300, effectively solving the problem of frequent changes of different clamps in traditional construction and significantly improving work efficiency. The device is equipped with a movable wheel assembly 4, giving it excellent mobility and facilitating flexible transfer in complex marine engineering or construction sites, meeting the needs of multi-position welding. The operating platform 100, as the basic load-bearing structure, integrates three major locking components, achieving "one machine for multiple uses," reducing equipment investment costs and improving space utilization. This device is particularly suitable for high-precision operations such as grinding, assembly, and welding of small-diameter pipelines, effectively avoiding problems such as misalignment and displacement caused by workpiece loosening, and strongly guaranteeing construction quality.

[0023] Furthermore, Figure 3 This is a structural schematic diagram of the plate locking assembly in this embodiment, as shown below. Figure 1 and Figure 3 As shown, the plate locking assembly 1 includes a plurality of fixed plates 11 spaced apart and a plurality of plate locking units 12. The plate locking units 12 can pass through the fixed plates 11 in sequence so that the plate-shaped product 200 is disposed in the gap between adjacent fixed plates 11.

[0024] Understandably, the plate locking assembly 1, constructed with multiple sets of fixing plates 11 to form a gap-type clamping structure, can flexibly adapt to plate-shaped workpieces of different thicknesses, demonstrating significant versatility and adjustability. The workpiece is securely clamped within the gap between two fixing plates 11, ensuring uniform force distribution and effectively preventing deformation caused by localized stress concentration. The locking unit can sequentially pass through multiple fixing plates 11 to achieve overall linkage locking, significantly improving clamping stability and avoiding safety hazards caused by single-point failure. This structure is simple, reliable, and easy to assemble and disassemble, making it ideal for streamlined operation environments with frequent workpiece changes.

[0025] Furthermore, the plate locking unit 12 includes a first bolt 121 and a first nut 122 that can cooperate with the first bolt 121. Each fixing plate 11 is provided with a corresponding insertion hole. The opening of the first nut 122 is flush with the insertion hole. The first bolt 121 can be inserted into the insertion hole after being threadedly connected with the first nut 122, so as to lock the plate-shaped product 200 located in the gap between adjacent fixing plates 11.

[0026] Understandably, the use of a standard threaded connection mechanism (bolt + nut) is advantageous due to its mature structure, low cost, ease of maintenance, and controllable preload, ensuring secure clamping. The design of the insertion hole being flush with the opening of the first nut 122 ensures that the insertion direction of the first bolt 121 aligns with the clamping direction, resulting in reasonable force distribution, effectively reducing shear stress, and extending service life. The first bolt 121 can be inserted from one side to complete the locking process, making it convenient and particularly suitable for rapid clamping in confined spaces. Furthermore, the clamping force can be finely adjusted by rotating the first bolt 121, enabling flexible clamping of easily deformable materials such as thin plates and preventing damage to the workpiece surface.

[0027] Furthermore, the plate locking unit 12 is divided into two groups, located at both ends of the fixing plate 11 respectively, and at least one plate locking unit 12 is configured at either end of the fixing plate 11.

[0028] Understandably, the symmetrically arranged locking units at both ends create a four-point or multi-point clamping pattern, greatly improving balance and torsional resistance during clamping. This design effectively prevents the plate from tilting, warping, or slipping due to unilateral force, and is particularly suitable for the stable fixing of long, narrow plates. Multiple locking units work together, so even if individual bolts loosen, the remaining units can still maintain basic clamping function, thus improving the system's safety redundancy. The distributed locking design helps to distribute the load, reduce localized wear, and extend the overall service life of the device.

[0029] Furthermore, Figure 4 This is a schematic diagram of the riser locking assembly in this embodiment, as shown below. Figure 1 and Figure 4 As shown, the riser locking assembly 2 includes a support 21 and a riser locking unit 22 that can slide relative to the support 21. The riser locking unit 22 includes a pair of arc-shaped locking parts 221. The two arc-shaped locking parts 221 can move closer or further away from each other to clamp or prevent the tubular product 300 located between the arc-shaped locking parts 221.

[0030] Understandably, the arc-shaped locking part 221 fits tightly against the outer wall of the tubular workpiece, providing a large contact area, stable clamping, and preventing slippage, effectively preventing rotation or displacement of the pipe during welding. The paired arc-shaped structures can open and close radially, adapting to pipes of different diameters and achieving stepless size adaptation without the need to replace any parts. The sliding design makes dynamic adjustment of the clamping position possible, meeting the clamping needs of off-center or eccentric pipes. This design is particularly suitable for the vertical positioning of small-diameter pipes in the vertical direction, effectively solving the shortcomings of traditional angle steel supports in preventing rotation and slippage.

[0031] Furthermore, the riser locking unit 22 includes a second bolt 222 and a second nut 223 that can cooperate with the second bolt 222. The second nut 223 is located on the support 21. One arc-shaped locking part 221 is provided on the operating platform 100, and the other is provided on the second bolt 222. The arc-shaped locking part 221 located on the second bolt 222 can move towards the arc-shaped locking part 221 provided on the operating platform 100 to vertically clamp or vertically prevent loosening of the tubular product 300 located between the arc-shaped locking parts 221.

[0032] Understandably, by rotating the second bolt 222, the movable arc-shaped part is pushed towards the fixed part, achieving a helical-driven clamping mechanism with strong self-locking, large and stable clamping force. The arc-shaped part on the fixed side is directly connected to the operating platform 100, providing good rigidity and making it a more reliable reaction fulcrum. The movable side moves with the advancement of the second bolt 222, and its stroke is controllable. By precisely controlling the tightening degree, the clamping force can be effectively adjusted to prevent damage to the pipe wall due to overtightening. This structure is compact and intuitive to operate; the clamping action can be completed using only a wrench, making it particularly suitable for use in harsh environments such as high altitudes or at sea.

[0033] Specifically, two riser locking assemblies 2 are provided, located at both ends of the operating platform 100. Those skilled in the art will understand that the synchronously configured riser locking assemblies 2 at both ends can simultaneously clamp two risers, or provide two-point support and clamping for the same long pipe fitting, thereby significantly improving longitudinal stability. The riser locking assemblies 2 effectively prevent bending, vibration, or resonance of slender pipe fittings during welding, significantly improving welding accuracy. Furthermore, it supports symmetrical construction operations, such as simultaneous welding by two people or simultaneous grinding on both sides, greatly improving construction efficiency. When it is necessary to flip the workpiece, one end can be kept clamped as a rotation axis, while the other end can be released for posture adjustment, greatly facilitating multi-angle operations.

[0034] Furthermore, Figure 5 This is a schematic diagram of the horizontal tube locking assembly in this embodiment, as shown below. Figure 1 and Figure 5 As shown, the horizontal tube locking assembly 3 includes an L-shaped bracket 31 and a horizontal tube locking unit 32 that can slide relative to the L-shaped bracket 31. The horizontal tube locking unit can form an inverted U-shaped structure with the L-shaped bracket 31 to horizontally clamp or horizontally release the tubular product 300 located in the gap of the inverted U-shaped structure.

[0035] Understandably, the inverted U-shaped structure creates a closed upper and open lower spatial layout, facilitating the horizontal insertion and removal of pipe fittings, thus achieving efficient loading and unloading. The L-shaped bracket 31 provides lateral restraint and bottom support, while the horizontal pipe locking unit 32 applies top clamping force, together forming a three-point constraint system that effectively prevents pipe fittings from jumping or shifting. This design is suitable for clamping large-diameter or heavy-duty pipe fittings placed horizontally, and is especially suitable for operations in flat welding positions. The overall structure has strong anti-overturning capabilities, remaining stable even under lateral impacts to ensure operational safety.

[0036] Furthermore, the horizontal tube locking unit 32 includes a third bolt 321 and a third nut 322 that can cooperate with the third bolt 321. One end of the L-shaped bracket 31 is connected to the operating platform 100, and the other end is connected to the third nut 322. The third bolt 321 can be threaded to the third nut 322 and form an inverted U-shaped structure with the L-shaped bracket 31.

[0037] Understandably, when the third bolt 321 is screwed into the third nut 322, it presses downwards against the top of the pipe fitting, thereby achieving a vertically downward active clamping force and effectively resisting the upward floating tendency caused by welding heat deformation. The L-shaped bracket 31 and the third bolt 321 together form a mechanically stable inverted U-shaped frame, possessing high structural strength and strong load-bearing capacity. The threaded adjustment method facilitates fine-tuning of the clamping height to accommodate pipe fittings of different outer diameters, eliminating the need for additional shims or adapters. The installation process is simple, and all components are standard parts, facilitating on-site maintenance and replacement, thus reducing operation and maintenance costs.

[0038] Furthermore, such as Figure 1 and Figure 2 As shown, the operating platform 100 is provided with multiple support legs 101, and each support leg 101 is provided with a wheel assembly 4 at its bottom. The wheel assembly 4 includes a caster wheel 41 and a baffle 42. The baffle 42 is located on the side of the caster wheel 41 and is used to protect the caster wheel 41.

[0039] Understandably, the coordinated action of multiple support legs 101 and casters 41 enables the device to move flexibly in all directions, allowing for free turning and precise positioning in confined compartments or deck areas. The baffles 42 on the sides of the casters 41 effectively prevent foreign objects (such as welding slag, debris, and ropes) from getting caught in the wheel gaps, thus avoiding wheel jamming or damage and significantly extending service life. The structural design of the support legs 101 enhances overall rigidity, ensuring that the operating platform 100 will not sway or collapse under load. When fixed operations are required, adjusting the height of the support legs 101 to lift the casters 41 off the ground allows for a quick switch to "fixed mode," ensuring both flexibility and stability.

[0040] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A fixing and locking device for the construction of steel structure products, characterized in that, This includes the operating platform, which is equipped with: Plate locking assembly, used to fix plate-shaped products; Riser locking assembly, used to vertically fix tubular products; Horizontal tube locking assembly, used to horizontally fix tubular products; A rotating wheel assembly is located below the operating platform, which is used to move the mobile platform.

2. The fixing and locking device for steel structure product construction according to claim 1, characterized in that, The plate locking assembly includes multiple fixed plates spaced apart and multiple plate locking units. The plate locking units can pass through the fixed plates in sequence so that the plate-shaped product is placed in the gap between adjacent fixed plates.

3. The fixing and locking device for steel structure product construction according to claim 2, characterized in that, The plate locking unit includes a first bolt and a first nut that can cooperate with the first bolt. Each fixing plate is provided with a corresponding insertion hole. The opening of the first nut is flush with the insertion hole. The first bolt can be inserted into the insertion hole after being threaded with the first nut to lock the plate-shaped product located in the gap between adjacent fixing plates.

4. The fixing and locking device for steel structure product construction according to claim 3, characterized in that, The plate locking units are divided into two groups, located at both ends of the fixed plate, with at least one plate locking unit configured at either end of the fixed plate.

5. The fixing and locking device for steel structure product construction according to claim 1, characterized in that, The riser locking assembly includes a support and a riser locking unit that can slide relative to the support. The riser locking unit includes a pair of arc-shaped locking parts that can move closer to or further away from each other to clamp or prevent loosening of the tubular product located between the arc-shaped locking parts.

6. The fixing and locking device for steel structure product construction according to claim 5, characterized in that, The riser locking unit includes a second bolt and a second nut that can mate with the second bolt. The second nut is located on the support. One arc-shaped locking part is located on the operating platform, and the other is located on the second bolt. The arc-shaped locking part located on the second bolt can move toward the arc-shaped locking part located on the operating platform to vertically clamp or vertically prevent loosening of the tubular product located between the arc-shaped locking parts.

7. The fixing and locking device for steel structure product construction according to any one of claims 1, 5, or 6, characterized in that, Two riser locking components are provided, located at both ends of the operating platform.

8. The fixing and locking device for steel structure product construction according to claim 1, characterized in that, The tube locking assembly includes an L-shaped bracket and a tube locking unit that can slide relative to the L-shaped bracket. The tube locking unit can form an inverted U-shaped structure with the L-shaped bracket to horizontally clamp or horizontally release the tubular product located in the gap of the inverted U-shaped structure.

9. The fixing and locking device for steel structure product construction according to claim 7, characterized in that, The horizontal pipe locking unit includes a third bolt and a third nut that can mate with the third bolt. One end of the L-shaped bracket is connected to the operating platform, and the other end is connected to the third nut. The third bolt can be threaded into the third nut and forms an inverted U-shaped structure with the L-shaped bracket.

10. The fixing and locking device for steel structure product construction according to claim 1, characterized in that, The operating platform is equipped with multiple support legs, and each support leg has a wheel assembly at its bottom. The wheel assembly includes a caster wheel and a baffle plate. The baffle plate is located on the side of the caster wheel to protect it.

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