Hoisting mechanism for stainless steel pipe fitting production

By designing a combination of hoisting frame, auxiliary rod hanger, and limiting mechanism, the problem of existing stainless steel pipe hoisting mechanisms being large in size and unable to adapt to different heights or angles is solved, achieving flexible hoisting adaptability and improved safety.

CN224118596UActive Publication Date: 2026-04-14CHANGZHOU HONGHU HIGH-TECH MATERIALS TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-20
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing stainless steel pipe lifting mechanisms are too large to accommodate lifting needs at different heights or angles.

Method used

A lifting mechanism including a lifting frame, a secondary boom hanger, a winch, and a limiting mechanism was designed. Through the combined use of worm gear transmission and reinforcing bolts, the angle and height can be flexibly adjusted to adapt to different lifting needs, and the stability is improved by configuring lifting hooks.

Benefits of technology

This design achieves a reduction in the size of the lifting mechanism and flexible angle adjustment, adapting to lifting needs at different heights or inclination angles, thus improving the flexibility and safety of lifting operations.

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Abstract

The utility model provides a hoisting mechanism for stainless steel pipe fitting production, which comprises a hoisting frame and two opposite auxiliary rod hangers, the two auxiliary rod hangers are respectively rotatably mounted on two sides of the hoisting frame, winches are further arranged on two sides of the hoisting frame, twisted ropes are wound on the two winches, and the auxiliary rod hangers are connected with the hoisting frame. The hoisting machine frame serves as a main supporting structure, the auxiliary rod hanging brackets rotationally installed on the two sides can rotate around the hoisting machine frame, the two auxiliary rod hanging brackets are arranged on the two sides of the hoisting machine frame in a rotating mode, one ends of the two twisted ropes are fixedly connected with one ends of the two auxiliary rod hanging brackets respectively, and limiting mechanisms used for limiting the rotating angles of the two winches are further arranged on the hoisting machine frame. And by adjusting the angle of the auxiliary rod hanging bracket, the hoisting requirements of different heights or inclination angles are met.
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Description

Technical Field

[0001] This utility model relates to the field of hoisting equipment, and in particular to a hoisting mechanism for the production of stainless steel pipe fittings. Background Technology

[0002] Stainless steel pipe fittings are widely used in industries such as chemical, energy, construction, and shipbuilding due to their corrosion resistance, high strength, and long service life. During their production, hoisting operations are a critical step, directly impacting production efficiency and safety.

[0003] The existing publication number CN222374230U discloses a hoisting mechanism for the production of stainless steel pipe fittings, including two base plates. A fixing sleeve is fixedly installed at the center of the top of each base plate. A sleeve rod is connected inside each fixing sleeve. A lifting assembly is fixedly installed between the sleeve rod and the fixing sleeve. A crossbar is fixedly installed at the top of each sleeve rod, and an electric slide rail is fixedly installed at the bottom of the crossbar. Two sliding seats are slidably connected to the surface of the electric slide rail. The steel pipe fixing component, hoisted by an electric hoist, can limit and fix the hoisted steel pipe, effectively ensuring the stability of the steel pipe and improving the safety of the hoisting process. The installed lifting assembly can drive the lifting of the sleeve rods, which in turn drives the lifting of the crossbars. The lifting of the crossbars allows for hoisting of the steel pipe within a certain height range, improving the convenience of transporting and loading the steel pipe.

[0004] However, the above-mentioned hoisting mechanisms take up a large volume when in use and cannot adapt to hoisting needs of different heights or tilt angles.

[0005] Therefore, it is necessary to provide a new hoisting mechanism for the production of stainless steel pipe fittings to solve the above-mentioned technical problems. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides a hoisting mechanism for the production of stainless steel pipe fittings, which solves the hoisting problem in the production of stainless steel pipe fittings.

[0007] The lifting mechanism for stainless steel pipe fitting production provided by this utility model includes a lifting frame and two opposing auxiliary rod hangers. The two auxiliary rod hangers are rotatably installed on both sides of the lifting frame. Winches are also provided on both sides of the lifting frame. A rope is wound on each of the two winches. One end of each rope is fixedly connected to one end of each of the two auxiliary rod hangers. The lifting frame is also provided with a limiting mechanism for limiting the rotation angle of the two winches.

[0008] In a preferred embodiment, the limiting mechanism includes a fixed frame, a worm gear, and a worm. The fixed frame is fixedly installed on one side of the hoisting frame, the winch is rotatably installed on the fixed frame, one side of the worm gear is fixedly connected to one side of the winch, and the worm is rotatably installed on one side of the fixed frame, and the worm meshes with the worm gear.

[0009] In a preferred embodiment, the bottom of the hoisting frame is provided with a plurality of hoisting hooks arranged side by side.

[0010] In a preferred embodiment, the bottom of the auxiliary rod hanger is provided with a plurality of lifting hooks arranged side by side.

[0011] In a preferred embodiment, a fixing plate is provided on one side of the hoisting frame, a rotating rod is rotatably mounted on the fixing plate, a gear one is fixedly connected to the outer surface of the rotating rod, a gear two is fixedly connected to one end of the worm gear, and the gear one meshes with the gear two.

[0012] In a preferred embodiment, the fixed frame is further provided with two opposing drive plates on the side away from the worm gear, and each of the two drive plates is threaded with a reinforcing bolt. The winch is fixedly connected with a rotating block on the side away from the worm gear, and the end of the reinforcing bolt abuts against the surface of the rotating block.

[0013] In a preferred embodiment, one end of the rotating rod has a hexagonal groove.

[0014] The beneficial effects of this utility model are as follows: the hoisting frame serves as the main support structure, and the auxiliary rod hangers installed on both sides can rotate around the hoisting frame. By adjusting the angle of the auxiliary rod hangers, it can adapt to hoisting requirements of different heights or inclination angles. On the other hand, the auxiliary rod hangers can be folded to reduce their volume ratio. Attached Figure Description

[0015] Figure 1 An overall structural view of the hoisting mechanism for the production of stainless steel pipe fittings provided by this utility model;

[0016] Figure 2 The main structure of the hoisting mechanism for the production of stainless steel pipe fittings provided by this utility model is shown in stereoscopic view. Figure 1 ;

[0017] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of A shown;

[0018] Figure 4 The main structure of the hoisting mechanism for the production of stainless steel pipe fittings provided by this utility model is shown in stereoscopic view. Figure 2 ;

[0019] Figure 5 for Figure 4 The diagram shows an enlarged structural representation of B.

[0020] The following are the labels in the diagram: 1. Lifting frame; 2. Secondary boom hanger; 3. Winch; 4. Winding rope; 5. Fixing frame; 6. Worm gear; 7. Worm; 8. Lifting hook one; 9. Lifting hook two; 10. Fixing plate; 11. Rotating rod; 12. Gear one; 13. Gear two; 14. Drive plate; 15. Reinforcing bolt; 16. Rotating block. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 5 ,in, Figure 1 An overall structural view of the hoisting mechanism for the production of stainless steel pipe fittings provided by this utility model; Figure 2 The main structure of the hoisting mechanism for the production of stainless steel pipe fittings provided by this utility model is shown in stereoscopic view. Figure 1 ; Figure 3 for Figure 2 A schematic diagram of the enlarged structure of A shown; Figure 4 The main structure of the hoisting mechanism for the production of stainless steel pipe fittings provided by this utility model is shown in stereoscopic view. Figure 2 ; Figure 5 for Figure 4 The diagram shows an enlarged structural representation of B.

[0023] In the specific implementation process, such as Figures 1-5 As shown, the hoisting mechanism for stainless steel pipe fitting production includes a hoisting frame 1 and two opposing auxiliary rod hangers 2. The two auxiliary rod hangers 2 are rotatably installed on both sides of the hoisting frame 1. Winches 3 are also provided on both sides of the hoisting frame 1. A rope 4 is wound on each of the two winches 3. One end of each rope 4 is fixedly connected to one end of each of the two auxiliary rod hangers 2. The hoisting frame 1 is also provided with a limiting mechanism for limiting the rotation angle of the two winches 3.

[0024] It should be noted that the limiting mechanism includes a fixed frame 5, a worm gear 6, and a worm 7. The fixed frame 5 is fixedly installed on one side of the hoisting frame 1, the winch 3 is rotatably installed on the fixed frame 5, one side of the worm gear 6 is fixedly connected to one side of the winch 3, and the worm 7 is rotatably installed on one side of the fixed frame 5, and the worm 7 meshes with the worm gear 6.

[0025] Furthermore, the bottom of the lifting frame 1 is provided with multiple lifting hooks 8 arranged side by side for directly lifting heavier or larger pipe fittings. The bottom of the auxiliary pole hanger 2 is provided with multiple lifting hooks 9 arranged side by side for assisting in lifting or distributing the load and improving lifting stability. A fixing plate 10 is also provided on one side of the lifting frame 1, on which a rotating rod 11 is rotatably mounted. One end of the rotating rod 11 has a hexagonal groove, allowing operators to use tools (such as wrenches) to rotate the rotating rod 11. The outer surface of the rotating rod 11 is fixedly connected to... There is a gear 12, and a gear 2 13 is fixedly connected to one end of the worm 7. Gear 12 and gear 2 13 mesh with each other. The worm 7 transmits power to the worm wheel 6 through the meshing of gear 12 and gear 2 13. The worm wheel 6 is fixedly connected to the winch 3. The transmission ratio design of the worm wheel 6 and worm 7 gives it a one-way self-locking function to prevent the winch 3 from rotating in the opposite direction unexpectedly under load. When the winch 3 rotates to a preset angle, the meshing resistance of the worm wheel 6 and worm 7 increases, limiting further rotation and ensuring angular stability during the hoisting process.

[0026] It should be noted that two opposing drive plates 14 are provided on the side of the fixed frame 5 away from the worm gear 7. Both drive plates 14 are threaded with reinforcing bolts 15. A rotating block 16 is fixedly connected on the side of the winch 3 away from the worm wheel 6. The end of the reinforcing bolt 15 abuts against the surface of the rotating block 16. The reinforcing bolts 15 on the drive plate 14 abut against the rotating block 16 of the winch 3 through threaded connection, further limiting the rotation range of the winch 3. The self-locking of the worm wheel 6 and worm gear 7 and the mechanical locking of the reinforcing bolts 15 work together to ensure precise angle control during the hoisting process.

[0027] The working principle of this utility model is as follows: When using this equipment, select either hook 1 (8) or hook 2 according to the size of the pipe fitting, fix the pipe fitting on the hook, adjust the angle of the auxiliary rod hanger 2 to align the lifting mechanism with the target position, start the winch 3, and the winding rope 4 will drive the auxiliary rod hanger 2 to rise and fall, thereby achieving vertical lifting of the pipe fitting. Adjust the position of the worm gear 7 through the rotating rod 11, set the rotation angle limit of the winch 3 to prevent overwinding or tilting, rotate the reinforcing bolt 15 so that its end abuts against the rotating block 16 of the winch 3 to further lock the position of the winch 3, loosen the reinforcing bolt 15 to release the lock between the worm gear 7 and the worm wheel 6, and release the winding rope 4 by reversing the winch 3 to complete the unloading of the pipe fitting.

[0028] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0029] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A hoisting mechanism for the production of stainless steel pipe fittings, characterized in that, The system includes a hoisting frame (1) and two opposing auxiliary rod hangers (2). The two auxiliary rod hangers (2) are rotatably installed on both sides of the hoisting frame (1). The hoisting frame (1) is also provided with winches (3) on both sides. The two winches (3) are wound with ropes (4). One end of the two ropes (4) is fixedly connected to one end of the two auxiliary rod hangers (2). The hoisting frame (1) is also provided with a limiting mechanism for limiting the rotation angle of the two winches (3).

2. The hoisting mechanism for stainless steel pipe fitting production according to claim 1, characterized in that, The limiting mechanism includes a fixed frame (5), a worm gear (6), and a worm (7). The fixed frame (5) is fixedly installed on one side of the hoisting frame (1). The winch (3) is rotatably installed on the fixed frame (5). One side of the worm gear (6) is fixedly connected to one side of the winch (3). The worm (7) is rotatably installed on one side of the fixed frame (5), and the worm (7) meshes with the worm gear (6).

3. The hoisting mechanism for stainless steel pipe fitting production according to claim 2, characterized in that, The bottom of the hoisting frame (1) is provided with multiple hoisting hooks (8) arranged side by side.

4. The hoisting mechanism for stainless steel pipe fitting production according to claim 3, characterized in that, The bottom of the auxiliary rod hanger (2) is provided with multiple lifting hooks (9) arranged side by side.

5. The hoisting mechanism for stainless steel pipe fitting production according to claim 4, characterized in that, A fixing plate (10) is also provided on one side of the hoisting frame (1). A rotating rod (11) is rotatably installed on the fixing plate (10). A gear one (12) is fixedly connected to the outer surface of the rotating rod (11). A gear two (13) is fixedly connected to one end of the worm (7). The gear one (12) meshes with the gear two (13).

6. The hoisting mechanism for stainless steel pipe fitting production according to claim 5, characterized in that, The fixed frame (5) is provided with two opposing drive plates (14) on the side away from the worm (7). Both drive plates (14) are threaded with reinforcing bolts (15). The winch (3) is fixedly connected with a rotating block (16) on the side away from the worm wheel (6). The end of the reinforcing bolt (15) abuts against the surface of the rotating block (16).

7. The hoisting mechanism for stainless steel pipe fitting production according to claim 6, characterized in that, One end of the rotating rod (11) has a hexagonal groove.

Citation Information

Patent Citations

  • Hoisting mechanism for stainless steel pipe fitting production

    CN222374230U