A mould copper tube hoisting clamp
By employing a multi-point support design and an adaptive gear mechanism for the crystallizer copper tube hoisting fixture, the problems of rotation and tilting during the hoisting of square pipes were solved, achieving stable hoisting and damage protection for the pipes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN LONGHUI COPPER IND
- Filing Date
- 2025-07-08
- Publication Date
- 2026-07-03
AI Technical Summary
When traditionally hoisting square pipes, the shift in the center of gravity can cause rotation or tilting, resulting in the risk of deformation at the bottom of the pipe and damage to its surface.
Design a crystallizer copper tube hoisting fixture, which adopts an L-shaped connecting rod, a main hoisting rod and an auxiliary hoisting rod combination. Multi-point support is achieved through gear meshing and positioning components. The auxiliary hoisting rod can be rotated and unfolded. Rubber pads are provided on the main hoisting rod and the auxiliary hoisting rod to increase friction and buffer.
It effectively prevents pipe tilting, improves versatility, reduces the risk of damage, is easy to operate, and enhances safety and efficiency.
Smart Images

Figure CN224450030U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of material handling equipment technology, specifically to a crystallizer copper tube hoisting clamp. Background Technology
[0002] In the field of industrial pipeline installation and material handling, pipeline hoisting is a crucial step in ensuring construction efficiency and safety. Traditional hoisting methods typically employ a combination of slings and clamps at both ends, using lifting equipment to traction the pipeline for aerial transfer. However, this technical solution has significant limitations when hoisting square pipelines.
[0003] Due to their geometric characteristics, square pipes are prone to center of gravity shift during hoisting. When the slings are only secured by clamps at both ends, the middle section of the pipe lacks effective restraint, causing it to rotate or tilt in the air. This dynamic instability directly leads to two problems: First, the tilt of the pipe causes its bottom to not be in perpendicular contact with the supporting surface, resulting in localized stress concentration at the moment of placement, which can easily cause deformation of the pipe bottom or damage to the anti-corrosion layer; second, the tilt changes the direction of force on the slings, increasing friction between the clamps and the pipe surface, further increasing the risk of surface damage to the pipe. Utility Model Content
[0004] In view of this, the present invention provides a crystallizer copper tube lifting clamp. The present invention can prevent the tube from tilting during transportation by increasing the contact area with the inner wall of the tube, thereby reducing the probability of damage.
[0005] To solve the above-mentioned technical problems, this utility model provides a crystallizer copper tube hoisting clamp, including a connecting rod, which has an L-shaped structure, and the end of the connecting rod is connected to a sling, which can drive the connecting rod to move.
[0006] The main hanger rod is positioned laterally at the corner end of the connecting rod and is used to insert into the pipe to apply force to the pipe. The main hanger rod and the connecting rod together form a concave structure.
[0007] Two auxiliary lifting rods are rotatably connected to the end of the main lifting rod near the connecting rod. The upper surfaces of the two auxiliary lifting rods are on the same horizontal plane as the upper surface of the main lifting rod. The two auxiliary lifting rods can also contact the inside of the pipe, thus ensuring the stability of the pipe during lifting.
[0008] The positioning component is installed between the main boom and the two auxiliary booms to fix the position of the two auxiliary booms.
[0009] The end of the main hanger is provided with a relief groove, and two rotating rods are vertically rotatable in the relief groove. The two rotating rods are symmetrically arranged about the axis of the main hanger. Each rotating rod is equipped with a gear on the same axis. The two gears mesh with each other and can rotate relative to each other or in opposite directions. An auxiliary hanger is fixed on the outer wall of the gear. The gear can drive the auxiliary hanger to rotate, thus adapting to different square pipes.
[0010] The positioning component includes a vertically penetrating storage hole on the main lifting rod, which is connected to a clearance groove. A limiting rod is inserted into the storage hole. After the limiting rod is inserted into the storage hole, it can be positioned in the tooth groove of the gear. The limiting rod can prevent the gear from rotating, thereby preventing the auxiliary lifting rod from rotating.
[0011] The upper surfaces of the main lifting rod and the two auxiliary lifting rods are all planar, which increases the contact area between the lifting device and the pipeline.
[0012] Both the main and auxiliary lifting rods are equipped with rubber pads on their upper surfaces, which increase the friction between the lifting device and the pipe.
[0013] The upper surface of the rubber pad is wavy.
[0014] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:
[0015] 1. Increase the contact area to prevent pipe tilting:
[0016] The design combines a main lifting rod with two auxiliary lifting rods, creating a multi-point support structure between the clamp and the pipe's inner wall. The main lifting rod is inserted laterally into the pipe as the primary stress point, while the auxiliary lifting rods, after being rotated and unfolded, are coplanar with the upper surface of the main lifting rod. The combined planar structure of these three elements increases the contact area with the pipe's inner wall. This design effectively disperses the forces during lifting, avoiding the problem of the pipe section being suspended in the air due to traditional end-clamping systems, and fundamentally solving the risk of rotation or tilting of square pipes caused by a shift in the center of gravity.
[0017] 2. Adaptive to pipe dimensions, significantly improving versatility:
[0018] The auxiliary hanger is rotatably connected to the main hanger via a gear meshing mechanism and secured with a positioning assembly. This design allows the auxiliary hanger to automatically adjust its unfolding angle according to the pipe's inner diameter, achieving synchronous opening and closing through gear transmission, ensuring the clamp adapts to square pipes of different sizes. The positioning assembly employs a mechanical locking method where a limit rod inserts into the gear tooth groove, ensuring simple operation and reliable fixation. It allows for quick adaptation to the target pipe without complex adjustments, significantly improving the clamp's versatility and efficiency.
[0019] 3. Dual protection design reduces the risk of pipeline damage:
[0020] The upper surfaces of the main and auxiliary hangers are covered with corrugated rubber pads to protect the pipeline in the following two ways:
[0021] Increase friction: The wavy surface forms multiple points of contact with the inner wall of the pipe, enhancing the static friction between the clamp and the pipe and preventing surface scratches caused by sliding during hoisting.
[0022] Buffering and shock absorption: The rubber material can absorb the impact and vibration of hoisting, avoid rigid contact between the bottom of the pipe and the supporting surface, significantly reduce the local stress concentration generated at the moment of placement, and effectively protect the anti-corrosion layer and structural integrity of the pipe.
[0023] 4. Compact structure and easy operation:
[0024] The clamp adopts an L-shaped connecting rod and a concave main lifting rod structure, concentrating the weight near the pipe axis and reducing torque offset during lifting. Operators only need to insert and remove the limit rod to complete the deployment and fixation of the auxiliary lifting rod, without additional tools or complicated steps, significantly simplifying the lifting process and improving operational safety. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the structure of a crystallizer copper tube hoisting clamp according to the present invention;
[0026] Figure 2 This utility model Figure 1 A schematic diagram of the structure at point A in the middle.
[0027] Explanation of reference numerals in the attached figures:
[0028] 1. Connecting rod; 2. Main lifting rod; 3. Auxiliary lifting rod; 4. Clearance groove; 5. Rotating rod; 6. Gear; 7. Storage hole; 8. Limiting rod; 9. Rubber pad. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-2 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.
[0030] This embodiment provides a crystallizer copper tube hoisting clamp, such as Figure 1As shown: The system includes an L-shaped connecting rod 1, with a sling connected to the upper end of the connecting rod 1. A main lifting rod 2 is horizontally connected to the corner of the connecting rod 1, forming a concave structure between the main lifting rod 2 and the connecting rod 1. Two auxiliary lifting rods 3 are hinged to one end of the main lifting rod 2 near the connecting rod 1. The ends of the auxiliary lifting rods 3 are rotatably connected to the main lifting rod 2. The tops of the two auxiliary lifting rods 3 and the main lifting rod 2 are on the same horizontal plane, thus expanding the contact area with the inside of the pipe and preventing the pipe from tilting during lifting. Rotating the auxiliary lifting rods 3 adjusts the distance between the ends of the two auxiliary lifting rods 3, allowing for the lifting of square pipes of different sizes. A positioning assembly is also provided between the two auxiliary lifting rods 3 and the main lifting rod 2 to fix the position of the rotated auxiliary lifting rods 3, thus preventing tilting during pipe lifting.
[0031] Specifically, the main lifting rod 2 has a clearance groove 4 at one end near the connecting rod 1, such as... Figure 1 , 2 As shown: Two rotating rods 5 are vertically rotatable in the clearance groove 4. The two rotating rods 5 are symmetrical to each other along the axis of the main lifting rod 2. Each rotating rod 5 is equipped with a gear 6 on the same axis. The two gears 6 mesh with each other, so that the two gears 6 can rotate relative to each other or in opposite directions. The outer wall of each gear 6 is fixedly connected to the end of the auxiliary lifting rod 3, so that the end of the auxiliary lifting rod 3 can move relative to each other or in opposite directions.
[0032] The positioning component includes a vertically penetrating storage hole 7 on the main lifting rod 2, such as... Figure 2 As shown: the clearance groove 4 is connected to the storage hole 7. The storage hole 7 is used to insert the limiting rod 8. The limiting rod 8 is also an L-shaped structure. After the limiting rod 8 is inserted into the storage hole 7, the limiting rod 8 can be located in the tooth groove of one of the gears 6, thereby preventing the gear 6 from rotating, and thus indirectly fixing the position of the auxiliary lifting rod 3.
[0033] Preferably, the upper surfaces of both the main lifting rod 2 and the auxiliary lifting rod 3 are planar structures, which provides a larger contact surface when the lifting equipment lifts the pipe, thus making the transfer of square pipes more stable.
[0034] Preferably, the upper surfaces of both the main lifting rod 2 and the auxiliary lifting rod 3 are provided with rubber pads 9. The rubber pads 9 can increase the friction between the lifting device and the pipe, further increasing the stability of the pipe during lifting. In addition, the upper surface of the rubber pads 9 is wavy, which can absorb the impact and vibration during lifting, avoid rigid contact between the bottom of the pipe and the support surface, and significantly reduce the local stress concentration generated at the moment of placement.
[0035] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0036] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.
Claims
1. A mold copper tube hoisting clamp characterized by: include; The connecting rod (1) has an L-shaped structure, and the end of the connecting rod (1) is connected to the sling; The main hanger (2) is placed horizontally at the corner end of the connecting rod (1) and is used to insert into the pipe to apply force to the pipe; Two auxiliary rods (3) are rotatably connected to the end of the main rod (2) near the connecting rod (1), and the upper surfaces of the two auxiliary rods (3) are on the same horizontal plane as the upper surface of the main rod (2); The positioning component is set between the main hanger (2) and the two auxiliary hangers (3) to fix the position of the two auxiliary hangers (3).
2. A mold copper tube hoisting clamp according to claim 1, characterized in that: The main lifting rod (2) is provided with a relief groove (4) at its end. Two rotating rods (5) are vertically rotatable in the relief groove (4). Each rotating rod (5) is provided with a gear (6) on the same axis. The two gears (6) mesh with each other. An auxiliary lifting rod (3) is fixed on the outer wall of the gear (6).
3. A mould copper tube lifting clamp as claimed in claim 2, characterised in that: The positioning component includes a vertically penetrating storage hole (7) on the main lifting rod (2), the storage hole (7) is connected to the relief groove (4), and the storage hole (7) is used to insert a limiting rod (8). After the limiting rod (8) is inserted into the storage hole (7), it can be located in the tooth groove of the gear (6).
4. A mold copper tube hoisting clamp as set forth in claim 1, characterized by: The upper surfaces of the main lifting rod (2) and the two auxiliary lifting rods (3) are all planar structures.
5. A mould copper tube lifting clamp as claimed in claim 4, characterised in that: Both the main lifting rod (2) and the auxiliary lifting rod (3) are provided with rubber pads (9) on their upper surfaces.
6. A mould copper tube hoisting clamp as claimed in claim 5, characterized in that: The upper surface of the rubber pad (9) is wavy.