Fixing frame for platform handrail welding

Abstract

The utility model relates to the technical field of fixing frames, and discloses a fixing frame for platform handrail welding, which comprises a connecting plate, a first placing table is fixedly connected to the top of the connecting plate, a second placing table is rotatably connected to the outer side of the first placing table through a rotating shaft, and an adjusting mechanism is arranged at the bottom of the second placing table. The second placement table is slidably connected to the top of the connecting plate through an adjusting mechanism, vertical plates are fixedly connected to one side of the first placement table and one side of the second placement table correspondingly, and moving mechanisms are arranged on the inner sides of the vertical plates; and the adjusting mechanism comprises a mounting block. According to the utility model, the push rod is relatively extruded, so that the moving plate drives the inserting rod to move out of the inserting hole, and the second placing table is movable. And accurate butt joint of radians of all parts during handrail welding is guaranteed, and welding defects caused by the angle problem are avoided. And meanwhile, the universality of the fixing frame is improved, various fixing devices do not need to be replaced, and the efficiency and quality of welding work are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fixing frames, in particular to a fixing frame for welding platform railings. Background Art

[0002] Platform railings are widely used in many fields, such as construction and industrial facilities. On the rooftops and edges of exterior corridors of high-rise buildings, platform railings are a key line of defense to prevent people from accidentally falling; around the multi-story operating platforms of industrial plants, they ensure the safety of workers during equipment inspections and operations; in petrochemical enterprises, platform railings around various tanks and reaction towers provide reliable protection for workers when working at heights; on temporary platforms at construction sites, railings are also indispensable, protecting the lives of construction workers. In these widely used application scenarios, the quality of the railings is directly related to the safety of personnel. Welding, as an important part of railing production, is crucial in terms of precision and quality.

[0003] Currently, railing welding typically involves the use of auxiliary tools, such as a metal frame and adjustable clamping components (e.g., screws and clamping blocks). The railing is placed within a fixture, and the clamping blocks are moved by rotating the screws, thereby clamping the railing. However, when railings require curvature, this fixture struggles to effectively adjust the curvature. Because the clamping blocks' linear motion trajectory cannot adapt to the curved contour of the railing, twisting stresses easily form during welding, leading to deformation of the welded railing. Utility Model Content

[0004] To address the above shortcomings, the present invention provides a platform railing welding fixture, which aims to improve the existing technology. When faced with railing components with curvature requirements, such fixtures are difficult to effectively adjust the curvature because the movement trajectory of the clamp block is a straight line and cannot adapt to the curved contour of the railing.

[0005] The top of the connecting plate is fixedly connected to the first placing platform, the outer side of the first placing platform is rotatably connected to the second placing platform by a rotating shaft, and the bottom of the second placing platform is provided with an adjustment mechanism, and the second placing platform is slidably connected to the top of the connecting plate by the adjustment mechanism, and the first placing platform and the second placing platform are respectively fixedly connected to the vertical plate on one side, and a moving mechanism is provided on the inner side of the vertical plate; the adjusting mechanism includes a mounting block, which is fixedly connected to the bottom of the second placing platform, and two movable plates are slidably connected to the inside of the mounting block, and the relative positions of the two movable plates are fixedly connected by a spring, and one side of the movable plate is fixedly connected to a column, and an arc slide is provided on the top of the connecting plate, and a plurality of sockets are provided on the inner wall of the arc slide, and the end of the column away from the movable plate is inserted into the socket, and a sliding component is provided at the bottom of the mounting block.

[0006] As a further description of the above technical solution:

[0007] The sliding assembly comprises a slide plate, the top of the slide plate is fixedly connected to the bottom of the mounting block, and the outer portion of the slide plate is slidably connected to the inside of the arc-shaped slideway.

[0008] As a further description of the above technical solution:

[0009] The moving mechanism includes a connecting rod, which is installed on one side of the vertical plate. A clamping assembly is provided on the outside of the connecting rod. One end of the connecting rod is fixedly connected to a side plate. An adjusting screw is fixedly connected to the outside of the side plate. The inside of the adjusting screw is fixedly connected to the outside of the connecting rod. The outside of the adjusting screw is threadedly connected to a rotating drum. A fixing assembly is provided on the outside of the side plate.

[0010] As a further description of the above technical solution:

[0011] The fixing assembly includes two protrusions, which are respectively fixedly connected to the outer sides of the side plates. A plurality of limiting grooves are opened on one side of the vertical plate, and the protrusions are engaged in the inner parts of the limiting grooves.

[0012] As a further description of the above technical solution:

[0013] The clamping assembly includes two vertical plates, the interiors of the two vertical plates are slidably connected to the exterior of the connecting rod, the interiors of the two vertical plates are rotatably connected with bolts, the exteriors of the bolts are threadedly connected with nuts, and the bottoms of the vertical plates are fixedly connected to a positioning plate.

[0014] As a further description of the above technical solution:

[0015] The outer side of the movable plate is fixedly connected with a push rod, and the outer side of the plug post is slidably connected to the inner side of the slide plate.

[0016] As a further description of the above technical solution:

[0017] A square groove is provided inside the vertical plate, and the outer portion of the rotating drum is rotatably connected to the inner portion of the square groove.

[0018] As a further description of the above technical solution:

[0019] One end of the adjusting screw away from the side plate is fixedly connected to the strip plate, and one end of the rotating drum is fixedly connected to the sleeve.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the present invention, the push rod is squeezed relative to each other, so that the movement of the movable plate drives the insertion rod to move out of the insertion hole, and then the second placement platform can be moved, so that it can ensure that the curvature of each component of the railing is accurately docked during the welding process, avoiding welding defects caused by inappropriate angles, improving the versatility of the fixing frame, and reducing the cost and time of replacing different fixing equipment when welding railings with different curvatures.

[0022] 2. In the utility model, by moving the connecting rod, the positioning plate can be moved to a suitable position for welding, which reduces the time of installation and positioning and improves work efficiency. Railing components of different sizes need to be firmly fixed during welding to prevent displacement during the welding process, so that the fixing frame has a wide range of applicability. At the same time, accurate positioning helps to ensure the accuracy of welding and make the weld more neat and beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a three-dimensional schematic diagram of a fixing frame for welding platform railings proposed in the utility model;

[0024] Figure 2 This is a cross-sectional view of a connecting plate of a fixing frame for welding a platform railing proposed in the present invention;

[0025] Figure 3 This is a cross-sectional schematic diagram of a mounting block of a fixing frame for welding a platform railing proposed in the present invention;

[0026] Figure 4 This is a structural schematic diagram of a vertical plate of a fixing frame for welding a platform railing proposed in the present invention;

[0027] Figure 5 This is a schematic structural diagram of a rotating drum of a fixing frame for welding platform railings proposed in the present invention;

[0028] Figure 6 for Figure 1 Enlarged view of point A in the middle.

[0029] Legend:

[0030] 1. Connecting plate; 2. First placement platform; 3. Second placement platform; 4. Mounting block; 5. Positioning plate; 6. Moving plate; 7. Spring; 8. Push rod; 9. Insert column; 10. Slide plate; 11. Curved slideway; 12. Insert hole; 13. Vertical plate; 14. Square groove; 15. Connecting rod; 16. Side plate; 17. Adjusting screw; 18. Strip plate; 19. Rotating drum; 20. Sleeve; 21. Bump; 22. Limiting groove; 23. Vertical plate; 24. Bolt; 25. Nut. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Reference Figure 1 、 Figure 2 and Figure 3 The utility model provides an embodiment: a fixing frame for welding a platform railing, comprising a connecting plate 1, a first placing platform 2 being fixedly connected to the top of the connecting plate 1, a second placing platform 3 being rotatably connected to the outside of the first placing platform 2 via a rotating shaft, an adjustment mechanism being provided at the bottom of the second placing platform 3, the second placing platform 3 being slidably connected to the top of the connecting plate 1 via the adjustment mechanism, a vertical plate 13 being fixedly connected to one side of the first placing platform 2 and the second placing platform 3 respectively, a moving mechanism being provided on the inner side of the vertical plate 13;

[0033] The adjustment mechanism includes a mounting block 4, which is fixedly connected to the bottom of the second placement platform 3, connecting the second placement platform 3 to the adjustment mechanism. Two movable plates 6 are slidably connected to the interior of the mounting block 4, providing sliding space for the movable plates 6. Springs 7 are fixedly connected to the relative positions of the two movable plates 6. Under normal conditions, the springs 7 provide a preload force for the movable plates 6, allowing the plug posts 9 to be firmly inserted into the sockets 12. A plug post 9 is fixedly connected to one side of the movable plate 6, which can fix the second placement platform 3 to the connecting plate 1 when it does not need to be moved.

[0034] The top of the connecting plate 1 features a curved slideway 11, allowing the slide 10 to slide the second platform 3. The inner wall of this curved slideway 11 is defined by multiple sockets 12, into which the ends of the pins 9 facing away from the movable plate 6 are inserted. By inserting the pins 9 into different positions of the sockets 12, the angle of the second platform 3 can be adjusted. A sliding assembly is located at the bottom of the mounting block 4. A push rod 8 is fixedly attached to the outer side of the movable plate 6, and the outer side of the pins 9 slides within the inner side of the slide 10.

[0035] Reference Figure 4 and Figure 5 The sliding assembly includes a slide plate 10, the top of which is fixedly connected to the bottom of the mounting block 4, providing a guide for the sliding of the second placement platform 3. The outside of the slide plate 10 is slidably connected to the inside of the curved slide 11, so that the second placement platform 3 can slide smoothly along the curved slide 11 when adjusting the angle. The moving mechanism includes a connecting rod 15, which is installed on one side of the vertical plate 13 to provide support for the connecting rod 15. A clamping assembly is provided on the outside of the connecting rod 15 for clamping the railing component. One end of the connecting rod 15 is fixedly connected to a side plate 16, so that the connecting rod 15 can be firmly mounted on the vertical plate 13.

[0036] An adjusting screw 17 is fixedly connected to the outside of the side panel 16. The inside of the adjusting screw 17 is fixedly connected to the outside of the connecting rod 15. A rotating drum 19 is threadedly connected to the outside of the adjusting screw 17. The rotating drum 19 rotates along the adjusting screw 17, thereby tightly connecting the outside of the rotating drum 19 to the outside of the vertical plate 13. A fixing component is provided on the outside of the side panel 16.

[0037] Reference Figure 4 and Figure 6 The fixing assembly includes two protrusions 21, each fixedly connected to the outside of the side panel 16. A plurality of limiting slots 22 are defined on one side of the vertical panel 13. The protrusions 21 engage within the limiting slots 22, further securing the connection between the connecting rod 15 and the vertical panel 13. The clamping assembly includes two vertical panels 23, which are internally slidably connected to the outside of the connecting rod 15, allowing for adjustment of the clamping of railing components of different sizes. Bolts 24 are rotatably connected to the interior of the two vertical panels 23, and nuts 25 are threadedly connected to the exterior of the bolts 24. By twisting the nuts 25 around the bolts 24, the two vertical panels 23 move relative to each other, thereby allowing the positioning plate 5 to tightly clamp the railing component.

[0038] The bottom of the vertical board 23 is fixedly connected to the positioning plate 5, which secures the railing assembly to the first and second placement platforms 2 and 3. A square slot 14 is defined within the vertical board 13, and a rotating drum 19 is externally rotatably connected to the interior of the square slot 14. When the rotating drum 19 rotates into the square slot 14, the connecting rod 15 is stably mounted on the vertical board 13. The end of the adjusting screw 17 away from the side panel 16 is fixedly connected to the strip plate 18. The end of the rotating drum 19 is fixedly connected to the sleeve 20. When the strip plate 18 enters the rotating drum 19, the sleeve 20 squeezes it, securing the side panel 16 to the exterior of the connecting rod 15.

[0039] Working principle: First, when welding the various components of the railing, place the components to be welded on the first placement platform 2 and the second placement platform 3. When welding railing components with different curvatures, push the two push rods 8 relative to each other, so that the push rod 8 drives the movable plate 6 to slide in the mounting block 4. The movement of the movable plate 6 will compress the spring 7, and the movable plate 6 will drive the plug post 9 to move out of the socket 12 in the arc slide 11, so that the second placement platform 3 can be slid on the connecting plate 1 with the rotating shaft as the center, and the slide plate 10 slides in the arc slide 11. When the second placement platform 3 is rotated to the appropriate angle, release the push rod 8, the spring 7 rebounds, and pushes the plug post 9 to reinsert into the socket 12 at the corresponding position, thereby fixing the angle of the second placement platform 3, so that the components of the railings with different curvatures can be connected to meet the welding requirements of railings of different shapes;

[0040] Secondly, when clamping railing components of different sizes, first move the connecting rod 15 to the top of the railing component, and then rotate the rotating drum 19 along the outside of the adjusting screw 17, so that the sleeve 20 squeezes the strip plate 18 to make it close to the outside of the connecting rod 15, and makes the protrusion 21 fit into the inside of the limiting groove 22. At the same time, the end of the rotating drum 19 tightly presses against the outside of the vertical plate 13, so that the connecting rod 15 is fixed on the vertical plate 13, and then the nut 25 is tightened along the outer thread of the bolt 24, so that the positioning plate 5 clamps and fixes the railing component, so that it is firmly placed on the first placement platform 2 and the second placement platform 3, which is convenient for the operator to weld it.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fixing frame for welding a platform railing, comprising a connecting plate (1), characterized in that: The top of the connecting plate (1) is fixedly connected to a first placement platform (2), the outer side of the first placement platform (2) is rotatably connected to a second placement platform (3) via a rotating shaft, an adjustment mechanism is provided at the bottom of the second placement platform (3), and the second placement platform (3) is slidably connected to the top of the connecting plate (1) via the adjustment mechanism, and one side of the first placement platform (2) and the second placement platform (3) are respectively fixedly connected to a vertical plate (13), and a moving mechanism is provided on the inner side of the vertical plate (13); The adjustment mechanism includes a mounting block (4), the mounting block (4) is fixedly connected to the bottom of the second placement table (3), the mounting block (4) is internally slidably connected to two movable plates (6), the relative positions of the two movable plates (6) are fixedly connected with a spring (7), one side of the movable plate (6) is fixedly connected with a plug post (9), the top of the connecting plate (1) is provided with an arc-shaped slideway (11), the inner wall of the arc-shaped slideway (11) is provided with a plurality of sockets (12), the end of the plug post (9) away from the movable plate (6) is plugged into the socket (12), and a sliding component is provided at the bottom of the mounting block (4).

2. A fixing frame for welding platform railings according to claim 1, characterized in that: The sliding assembly comprises a slide plate (10), the top of the slide plate (10) is fixedly connected to the bottom of the mounting block (4), and the outside of the slide plate (10) is slidably connected to the inside of the arc-shaped slideway (11).

3. A fixing frame for welding platform railings according to claim 1, characterized in that: The moving mechanism includes a connecting rod (15), the connecting rod (15) is installed on one side of the vertical plate (13), a clamping assembly is provided on the outside of the connecting rod (15), one end of the connecting rod (15) is fixedly connected to a side plate (16), an adjusting screw (17) is fixedly connected to the outside of the side plate (16), the adjusting screw (17) is fixedly connected to the outside of the connecting rod (15), the adjusting screw (17) is externally threadedly connected to a rotating drum (19), and a fixing assembly is provided on the outside of the side plate (16).

4. A fixing frame for welding platform railings according to claim 3, characterized in that: The fixing assembly comprises two protrusions (21), the two protrusions (21) are respectively fixedly connected to the outside of the side plate (16), a plurality of limiting grooves (22) are opened on one side of the vertical plate (13), and the protrusions (21) are engaged inside the limiting grooves (22).

5. The fixing frame for welding platform railings according to claim 3, characterized in that: The clamping assembly comprises two vertical plates (23), the interiors of the two vertical plates (23) are slidably connected to the exterior of the connecting rod (15), the interiors of the two vertical plates (23) are rotatably connected to bolts (24), the exteriors of the bolts (24) are threadedly connected to nuts (25), and the bottoms of the vertical plates (23) are fixedly connected to a positioning plate (5).

6. A fixing frame for welding platform railings according to claim 1, characterized in that: The outer side of the movable plate (6) is fixedly connected to a push rod (8), and the outer side of the plug post (9) is slidably connected to the inner side of the slide plate (10).

7. The fixing frame for welding platform railings according to claim 3, characterized in that: A square groove (14) is provided inside the vertical plate (13), and the outside of the rotating drum (19) is rotatably connected to the inside of the square groove (14).

8. The fixing frame for welding platform railings according to claim 3, characterized in that: One end of the adjusting screw (17) away from the side plate (16) is fixedly connected to a strip plate (18), and one end of the rotating cylinder (19) is fixedly connected to a sleeve (20).

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