Clamp for holding pipe for cleaning

The rotating hook clamp solves the problem of clamping and transferring tubular materials in confined spaces, achieving stable clamping and transfer of tubular materials, and improving the convenience and stability of clamping and transfer.

CN224467373UActive Publication Date: 2026-07-07HENAN MINE CRANE +3

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN MINE CRANE
Filing Date
2025-06-24
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing pipe-holding cleaning clamps are difficult to grip and transfer tubular materials smoothly in confined spaces, and the traditional open-and-close structure occupies a lot of space, affecting equipment layout and making it easy to interfere.

Method used

The device employs a rotating hook clamp, which uses a hydraulic cylinder to drive the rotating shaft and rotate the hook to clamp and transfer tubular materials. The hook is detachable to adapt to different pipe diameters, and multiple clamping components work together to ensure uniform load distribution.

Benefits of technology

It saves space for clamp opening, adapts to narrow working environments, improves the convenience of clamping and transferring, and ensures stable clamping and transfer of tubular materials in a compact space.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of fixture equipment, concretely relates to a clamp for holding pipe cleaning, including crossbeam, be provided with clamping assembly on the crossbeam, the clamping assembly includes lifting hook and drive arrangement, the number of lifting hook is two and is symmetrical distribution with the midline of crossbeam as the axle, the drive arrangement includes pivot, the lower extreme of pivot is connected with lifting hook, and the upper end is provided with the drive source for driving pivot rotation, and the clamping and the transfer operation of tubular material is completed by the rotation of lifting hook, compared with traditional open-close type clamp, the space occupied when saving clamp opens, can complete the material's clamping and transfer in the operation space of small gap.
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Description

Technical Field

[0001] This utility model relates to the field of clamping equipment technology, specifically to a clamp for pipe cleaning. Background Technology

[0002] In industrial production, cleaning tubular materials is a common process. Tube-holding cleaning clamps are crucial equipment for efficient cleaning of tubular materials, and their performance directly impacts cleaning efficiency and quality. Currently, most tube-holding cleaning clamps on the market use a traditional open-close structure. This structure requires a large amount of space to allow for opening and closing the clamp when holding and transferring tubular materials.

[0003] However, in actual industrial production environments, working spaces are often quite compact, especially in areas with automated production lines or dense equipment, where space resources are extremely limited. For example, Chinese Patent (202111014725.2) discloses an anti-sway multi-steel sleeve lifting device, including a crossbeam, clamps, a drive assembly, and a stabilizer. The clamps include a clamp frame and multiple hooks. The clamp frame is slidably connected to the crossbeam, and the multiple hooks are all connected to the clamp frame for positioning multiple steel sleeves. Each hook includes a first hook, and the first hooks of the two clamps and the crossbeam are located in a first plane. The drive assembly is connected to the two clamps, and the stabilizer includes two support legs for abutting against the circumferential surface of the steel sleeves held by the two first hooks.

[0004] The large space occupied by this clamp when it is open not only restricts the layout of the equipment, but also makes it easy to interfere with surrounding equipment, making it impossible to smoothly complete the clamping and transfer of materials in a small working space. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a clamp for pipe cleaning, which utilizes the rotation of the hook to clamp and transfer tubular materials, saving the space occupied by opening the clamp and enabling material clamping and transfer to be completed in a small working space.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a clamp for pipe cleaning, comprising a crossbeam, wherein a clamping assembly is provided on the crossbeam, the clamping assembly comprising a hook and a driving device, wherein the number of hooks is two and they are symmetrically distributed about the center line of the crossbeam, and the driving device comprises a rotating shaft, wherein the lower end of the rotating shaft is connected to the hook, and the upper end is provided with a driving source for driving the rotating shaft to rotate.

[0007] As a further improvement to the above technical solution:

[0008] The drive source includes a hydraulic cylinder, the output end of which is provided with a push rod, and the upper part of the rotating shaft is provided with a drive arm connected to the rotating shaft.

[0009] The crossbeam is provided with a sliding groove corresponding to the position of the push rod, and the upper part of the push rod is provided with a positioning post for connecting the drive arm.

[0010] One end of the drive arm is connected to the rotating shaft, and the other end is provided with a clearance groove for use with the positioning post.

[0011] The upper part of the rotating shaft is provided with a positioning seat for connecting to the drive arm, and the lower part is provided with an extension rod for installing the hook. The extension rod and the hook are detachably connected by bolts.

[0012] An installation frame is provided on the outside of the crossbeam, and the clamping components are multiple and evenly distributed along the length of the installation frame.

[0013] The two adjacent clamping assemblies are connected by a transmission rod.

[0014] The beneficial effects of this utility model embodiment are as follows: The clamp for pipe cleaning includes a crossbeam, on which a clamping assembly is provided. The clamping assembly includes a hook and a driving device. The number of hooks is two and they are symmetrically distributed about the center line of the crossbeam. The driving device includes a rotating shaft. The lower end of the rotating shaft is connected to the hook, and the upper end is provided with a driving source for driving the rotating shaft to rotate. The rotation of the hook is used to complete the clamping and transfer of tubular materials. Compared with the traditional open-closing clamp, it saves the space occupied when the clamp is opened and can complete the clamping and transfer of materials in a small working space.

[0015] The coordinated operation of multiple clamping components ensures that the weight of tubular materials of different lengths can be evenly distributed during material transfer. At the same time, the detachable installation of the hooks allows for quick replacement according to the diameter of the material, improving the convenience of operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the hook in the open state in this utility model;

[0018] Figure 3 This is a schematic diagram of the hook clamping state in this utility model;

[0019] Figure 4 This is a schematic diagram of the connection structure between the hook and the rotating shaft in this utility model;

[0020] Figure 5This is a top view of the drive device in this utility model;

[0021] Figure 6 This is a schematic diagram of the installation structure of the push rod in this utility model.

[0022] In the diagram: 1. Crossbeam; 2. Hook; 3. Shaft; 4. Drive source; 5. Hydraulic cylinder; 6. Push rod; 7. Drive arm; 8. Positioning column; 9. Alternating groove; 10. Positioning seat; 11. Extension rod; 12. Mounting frame; 13. Transmission rod; 14. Slide. Detailed Implementation

[0023] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0024] like Figure 1 As shown, the clamp for pipe cleaning in this embodiment includes a crossbeam (1), which is a rectangular steel beam with an external mounting frame (12). The mounting frame (12) is a rectangular structure welded from square steel. Multiple clamping components are evenly distributed along the length of the mounting frame (12). Adjacent clamping components are connected by a transmission rod (13) to achieve synchronous operation. Each clamping component includes two hooks (2) symmetrically distributed on both sides of the center line of the crossbeam (1). The inner wall of the hooks (2) is provided with an anti-slip rubber layer to enhance the clamping friction.

[0025] like Figure 2-4 As shown, the hook (2) is detachably connected to the lower end of the extension rod (11) by bolts. The extension rod (11) is a cylindrical steel rod, and its upper part is welded and fixed to the rotating shaft (3). The rotating shaft (3) passes vertically through the crossbeam (1) and is rotatably connected to the crossbeam (1) through a bearing. The upper part of the rotating shaft (3) is provided with a positioning seat (10), and the lower part of the positioning seat (10) is provided with a pressure bearing between it and the crossbeam (1) to reduce the friction force when the rotating shaft (3) rotates. The positioning seat (10) is fixed with a drive arm (7). One end of the drive arm (7) is welded to the positioning seat (10), and the other end is provided with a clearance groove (9). The clearance groove (9) is hinged to the positioning post (8) on the upper part of the push rod (6).

[0026] like Figure 5-6As shown, the driving device uses a hydraulic cylinder (5) as the driving source. The hydraulic cylinder (5) is vertically installed on the side of the crossbeam (1), and the push rod (6) at its output end slides horizontally along the slide groove (14) on the crossbeam (1). When the hydraulic cylinder (5) retracts the push rod (6), the push rod (6) drives the drive arm (7) to rotate 90 degrees clockwise around the shaft (3) via the positioning column (8), causing the two hooks (2) to converge towards the center and clamp the pipe; conversely, when the hydraulic cylinder (5) extends the push rod (6), the drive arm (7) pulls the shaft (3) counterclockwise by 90 degrees, and the hooks (2) open outward to release the pipe. Through the linkage of the transmission rod (13), the shafts (3) of all clamping components rotate synchronously, ensuring that the pipe is subjected to uniform force and is clamped stably. The lower part of the hook 2 is provided with an arc-shaped groove that fits against the side wall of the tubular material, which can enhance the fit with the material surface, improve the clamping strength, and prevent the material from shaking during the transfer process.

[0027] The hook (2) can be quickly replaced to adapt to different pipe diameter requirements. The hydraulic cylinder (5) provides high torque drive, and the precise guidance of the slide groove (14) and the avoidance groove (9) ensures high reliability of operation. The transmission rod (13) realizes synchronous control of multiple clamping components to avoid pipe deviation or tilting. In practical applications, the hook (2) model and the distribution density of the clamping components can be adjusted according to the pipe size.

[0028] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] 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.

[0030] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0031] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A clamp for pipe cleaning, comprising a crossbeam (1) on which a clamping assembly is provided, characterized in that: The clamping assembly includes hooks (2) and a driving device. The number of hooks (2) is two and they are symmetrically distributed about the center line of the crossbeam (1). The drive device includes a rotating shaft (3), the lower end of which is connected to a hook (2), and the upper end is provided with a drive source (4) for driving the rotating shaft (3) to rotate.

2. The clamp for pipe cleaning according to claim 1, characterized in that: The drive source (4) includes a hydraulic cylinder (5), the output end of which is provided with a push rod (6), and the upper part of the rotating shaft (3) is provided with a drive arm (7) connected to the rotating shaft (3).

3. The clamp for pipe cleaning according to claim 2, characterized in that: The crossbeam (1) is provided with a groove (14) corresponding to the position of the push rod (6), and the upper part of the push rod (6) is provided with a positioning post (8) for connecting the drive arm (7).

4. The clamp for pipe cleaning according to claim 3, characterized in that: One end of the drive arm (7) is connected to the rotating shaft (3), and the other end is provided with a clearance groove (9) that works in conjunction with the positioning post (8).

5. The clamp for pipe cleaning according to claim 3, characterized in that: The upper part of the rotating shaft (3) is provided with a positioning seat (10) connected to the drive arm (7), and the lower part is provided with an extension rod (11) for installing the hook (2). The extension rod (11) and the hook (2) are detachably connected by bolts.

6. The clamp for pipe cleaning according to claim 1, characterized in that: The beam (1) is provided with an installation frame (12) on its outside, and the clamping components are multiple and evenly distributed along the length of the installation frame (12).

7. The clamp for pipe cleaning according to claim 6, characterized in that: The two adjacent clamping assemblies are connected by a transmission rod (13).