Flange positioning lifting appliance with precise positioning function

Abstract

The utility model relates to the technical field of flange lifting appliances, in particular to a flange positioning lifting appliance with an accurate positioning function, which comprises a lifting appliance trolley fixedly connected with a lifting rope. The bottom end of the lifting rope is provided with a lifting assembly used for lifting a flange, the lifting assembly comprises a connecting block arranged at the bottom end of the lifting rope, two lifting plates are arranged in the connecting block, the lifting plates are fixedly connected with the lifting rope, frame plates are fixedly connected to the lifting plates, clamping blocks used for clamping the flange are arranged in the frame plates, and a positioning plate is arranged at the bottom end of each frame plate. According to the utility model, through the arrangement of the lifting assembly, under the matching action of the lifting appliance trolley, the clamping blocks can move, so that a flange enters the clamping blocks to be clamped, and the flange is lifted under the matching action of the lifting plate; the flange is lowered so that the flange can descend along the upper arc face of the positioning plate to be accurately connected to the pipeline in a sleeving mode, follow-up welding is facilitated, and the whole device enables the flange to be more accurately connected to the pipeline in a sleeving mode.

Description

Technical Field

[0001] This utility model relates to the field of flange lifting equipment technology, and in particular to a flange positioning lifting equipment with precise positioning function. Background Technology

[0002] Flange lifting tools, as easy-to-install and disassemble industrial lifting equipment, are widely used in various workplaces and are essential tools for lifting flange-type workpieces. They are mainly used in many industries such as petrochemicals, oil refining, pipelines, power generation, and emergency rescue for safe and efficient flange lifting operations.

[0003] Flange connection is a common connection method when connecting two pipes. Before connecting the two pipes with flanges, the flanges need to be welded to the pipes. In the process of lifting the flanges and fitting them onto the pipes, common flange lifters often require frequent adjustments to the position of the crane boom or manual pushing of the flanges to align them with the pipes so that the flanges can be accurately fitted onto the pipes and the welding can be completed. The process of adjusting the flange position to align with the pipes is time-consuming, labor-intensive, difficult to control in terms of accuracy, and inefficient.

[0004] To address this, a flange positioning lifting device with precise positioning function is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a flange positioning lifting device with precise positioning function to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a flange positioning lifting device with precise positioning function, including a lifting vehicle, on which a lifting rope is fixedly connected; the bottom end of the lifting rope is provided with a lifting assembly for lifting the flange, the lifting assembly including a connecting block at the bottom end of the lifting rope, the connecting block having two lifting plates, and the lifting plates being fixedly connected to the lifting rope, a frame plate being fixedly connected to the lifting plate, the frame plate having a clamping block for holding the flange, and a positioning plate at the bottom end of the frame plate, the positioning plate being used to ensure that the flange is accurately fitted onto the pipe during the flange fitting process.

[0007] Preferably, the two hanging plates are rotatably connected in the connecting block, and a tension spring is fixedly connected between the hanging plates.

[0008] Preferably, the clamping block is slidably connected to the frame plate, a pull rod is fixedly connected to the clamping block and slidably connected to the frame plate, and a spring is fixedly connected between the clamping block and the frame plate.

[0009] Preferably, the part of the clamping block that contacts the flange is arranged in an arc shape that matches the flange, and the clamping block is provided with a rubber pad.

[0010] Preferably, the positioning plate has an upper arc surface and a lower arc surface, the upper arc surface being adapted to the pipe portion on the flange, and the lower arc surface being adapted to the pipe.

[0011] Preferably, the lifting vehicle is fixedly equipped with an installation platform, and a motor and a guide rod are fixedly installed on the installation platform. A threaded rod is fixedly connected to the output shaft of the motor, and the threaded rod is a bidirectional threaded rod.

[0012] Preferably, a connecting plate is fixedly connected to the positioning plate, the connecting plate is threadedly connected to the threaded rod, and the connecting plate is slidably connected to the guide rod.

[0013] The beneficial effects of this utility model are:

[0014] This invention features a lifting assembly that, with the assistance of a lifting vehicle, allows the clamping blocks to move, clamping the flange and lifting it with the help of a lifting plate. The positioning plate is then moved to align with the flange and pipe, allowing the flange to descend along the upper arc surface of the positioning plate and precisely fit onto the pipe, facilitating subsequent welding. The entire device ensures more precise flange fitting onto the pipe, eliminating the need for frequent adjustments to the boom or flange position to align the flange with the pipe, resulting in high welding efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in 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 for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of a flange positioning hanger with precise positioning function according to an embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram of the positioning plate structure of a flange positioning hanger with precise positioning function according to an embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of the lifting plate structure of a flange positioning hanger with precise positioning function according to an embodiment of the present invention;

[0019] Figure 4 This invention relates to a flange positioning and lifting device with precise positioning function, as described in this embodiment. Figure 3 Enlarged structural diagram at point A in the middle;

[0020] Figure 5 This is a schematic diagram of the frame structure of a flange positioning hanger with precise positioning function according to an embodiment of the present invention.

[0021] The markings in the diagram are as follows: 1. Lifting vehicle; 2. Lifting rope; 3. Connecting block; 4. Lifting plate; 5. Frame plate; 6. Clamping block; 7. Positioning plate; 701. Upper arc surface; 702. Lower arc surface; 8. Tension spring; 9. Tie rod; 10. Spring; 11. Mounting platform; 12. Motor; 13. Guide rod; 14. Threaded rod; 15. Connecting plate. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0023] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0024] like Figures 1 to 5 As shown in the figure, a specific embodiment of this utility model provides a flange positioning lifting device with precise positioning function, including a lifting vehicle 1. The lifting vehicle 1 is prior art and will not be described in detail here. It is easy to move, and the boom on the lifting vehicle 1 can move up and down, thereby facilitating the lifting of the flange. A lifting rope 2 is fixedly connected to the lifting vehicle 1. The bottom end of the lifting rope 2 is provided with a lifting assembly for lifting the flange. By setting the lifting assembly, the flange can be lifted and moved to the top of the pipe with the cooperation of the lifting vehicle 1, and the flange can be adjusted to the accurate position corresponding to the pipe, thereby facilitating the lifting vehicle 1 to accurately fit the flange. The flange is connected to the pipeline, which facilitates the subsequent welding of the flange to the pipeline. The entire connection process can accurately connect the flange to the pipeline without frequent adjustment of the boom position of the lifting vehicle 1 or manual adjustment of the flange position. It is time-saving, labor-saving and highly efficient. The lifting component includes a connecting block 3 at the bottom of the lifting rope 2. The connecting block 3 has two lifting plates 4, and the lifting plates 4 are fixedly connected to the lifting rope 2. A frame plate 5 is fixedly connected to the lifting plate 4. The frame plate 5 has a clamping block 6 for clamping the flange. The bottom of the frame plate 5 has a positioning plate 7. The positioning plate 7 is used to ensure that the flange is accurately connected to the pipeline during the flange connection process.

[0025] like Figure 5 As shown, specifically, two lifting plates 4 are rotatably connected in the connecting block 3, and a tension spring 8 is fixedly connected between the lifting plates 4. A clamping block 6 is slidably connected in the frame plate 5, and a pull rod 9 is fixedly connected to the clamping block 6, with the pull rod 9 slidably connected to the frame plate 5. A spring 10 is fixedly connected between the clamping block 6 and the frame plate 5. The part of the clamping block 6 that contacts the flange is arranged in an arc shape to match the flange, and a rubber pad is provided in the clamping block 6. When connecting the flange and the pipe, the lifting plate 4, the bottom frame plate 5, and the clamping block 6 are moved to the top of the flange by moving the lifting trolley 1. Figure 5 As shown, starting the lifting vehicle 1 allows the boom of the lifting vehicle 1 to be lowered, thereby allowing the frame plate 5 and clamping block 6 to move downwards. During the lowering process, the worker pulls the pull rod 9, causing the clamping block 6 to move inwards within the frame plate 5. The spring 10 contracts under pressure, generating a reaction force. As the clamping block 6 gradually moves inwards within the frame plate 5, the distance between the two clamping blocks 6 increases, allowing the flange plate to enter the clamping groove within the clamping block 6 during its downward movement. Subsequently, releasing the pull rod 9 causes the clamping block 6 to reset under the reaction force of the spring 10, moving closer to the flange and clamping it tightly. The arc-shaped design on the clamping block 6... The placement of the clamping block 6 and the rubber pads allow the clamping block 6 to better fit and clamp the flange. Then, the lifting vehicle 1 is started to move the boom upward, thereby lifting the flange held by the clamping block 6 at the bottom through the lifting rope 2 and the lifting plate 4. During the lifting process, the flange itself has a certain weight, so the two lifting plates 4 rotate crosswise under the action of the flange's gravity. The tension spring 8 is stretched by a certain distance and generates a reaction force. The frame plate 5 at the bottom of the lifting plate 4 approaches the flange and further applies pressure to the spring 10 to squeeze the clamping block 6, thereby making the clamping block 6 better clamp the flange, so that the flange is not easy to fall off during the lifting process.

[0026] like Figures 1 to 4 As shown, specifically, the positioning plate 7 has an upper arc surface 701 and a lower arc surface 702. The upper arc surface 701 is adapted to the pipe portion on the flange, and the lower arc surface 702 is adapted to the pipe. After the flange on the platform is lifted, the pipe placed on the platform or the ground is moved by the lifting vehicle 1 to enter between the two positioning plates 7, that is, as shown. Figure 1This arrangement positions the pipe between the positioning plates 7, with the flange positioned at the top of the pipe during the movement of the crane boom. A mounting platform 11 is fixedly installed on the crane 1, and a motor 12 and guide rod 13 are also fixedly installed on the platform 11. A threaded rod 14, a double-threaded rod, is fixedly connected to the output shaft of the motor 12. A connecting plate 15 is fixedly connected to the positioning plate 7, threadedly connected to the threaded rod 14, and slidably connected to the guide rod 13. Starting the motor 12 on the mounting platform 11 rotates the threaded rod 14, causing the two positioning plates 7 to move closer together along the guide rod 13. With the assistance of the crane 1, the positioning plates 7 gradually conform to the pipe in the middle. Because the upper arc surface 701 matches the pipe portion on the flange, and the lower arc surface 702 matches the pipe, the positioning plates 7 can fit well with the pipe and flange. Figure 3 and Figure 4 As shown, at this time, the flange is gradually lowered by the boom of the spreader 1, and the flange will move downward along the upper arc surface 701 and gradually fit onto the pipe. That is, the flange is accurately fitted onto the pipe. The reverse drive motor 12 causes the positioning plate 7 to move in the reverse direction to reset and detach from the pipe and flange. The pull rod 9 is pulled to make the clamping block 6 detach from the flange. Under the drive of the boom of the spreader 1, the lifting plate 4 moves upward along with the frame plate 5 and the clamping block 6 to separate from the flange. Then, welding can be carried out between the flange and the pipe. At this time, the lifting plate 4 is no longer subjected to the gravity of the flange. The tension spring 8 contracts under the reaction force and pulls the two lifting plates 4 to rotate and open to return to the initial state.

[0027] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0028] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A flange positioning lifting device with precise positioning function, comprising a lifting device trolley (1), wherein a lifting rope (2) is fixedly connected to the lifting device trolley (1), characterized in that: The bottom end of the lifting rope (2) is provided with a lifting assembly for lifting the flange. The lifting assembly includes a connecting block (3) at the bottom end of the lifting rope (2). The connecting block (3) is provided with two lifting plates (4), and the lifting plates (4) are fixedly connected to the lifting rope (2). A frame plate (5) is fixedly connected to the lifting plate (4). The frame plate (5) is provided with a clamping block (6) for clamping the flange. The bottom end of the frame plate (5) is provided with a positioning plate (7). The positioning plate (7) is used to ensure that the flange can be accurately fitted onto the pipeline during the flange fitting process.

2. The flange positioning lifting device with precise positioning function according to claim 1, characterized in that, The two hanging plates (4) are rotatably connected in the connecting block (3), and a tension spring (8) is fixedly connected between the hanging plates (4).

3. The flange positioning lifting tool with precise positioning function according to claim 1, characterized in that, The clamping block (6) is slidably connected in the frame plate (5), and a pull rod (9) is fixedly connected to the clamping block (6), and the pull rod (9) is slidably connected to the frame plate (5). A spring (10) is fixedly connected between the clamping block (6) and the frame plate (5).

4. The flange positioning lifting tool with precise positioning function according to claim 1, characterized in that, The part of the clamping block (6) that clamps and contacts the flange is arranged in an arc shape that matches the flange, and the clamping block (6) is provided with a rubber pad.

5. The flange positioning lifting tool with precise positioning function according to claim 1, characterized in that, The positioning plate (7) is provided with an upper arc surface (701) and a lower arc surface (702). The upper arc surface (701) is adapted to the pipe part on the flange, and the lower arc surface (702) is adapted to the pipeline.

6. The flange positioning lifting tool with precise positioning function according to claim 1, characterized in that, The lifting vehicle (1) is fixedly equipped with an installation platform (11), and a motor (12) and a guide rod (13) are fixedly installed on the installation platform (11). A threaded rod (14) is fixedly connected to the output shaft of the motor (12), and the threaded rod (14) is a bidirectional threaded rod.

7. The flange positioning lifting tool with precise positioning function according to claim 6, characterized in that, A connecting plate (15) is fixedly connected to the positioning plate (7). The connecting plate (15) is threadedly connected to the threaded rod (14), and the connecting plate (15) is slidably connected to the guide rod (13).

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