A pipe fitting protective lifting device
By designing a pipe fitting protective lifting device with support frames, clamping frames, and protective frames, the problems of low lifting efficiency and safety hazards of pipe fittings have been solved, and an efficient and safe lifting process has been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN MINE CRANE
- Filing Date
- 2025-07-10
- Publication Date
- 2026-07-03
AI Technical Summary
Existing pipe hoisting methods are inefficient, prone to falling, pose safety hazards, and are labor-intensive.
A pipe fitting protective lifting device was designed, comprising a support frame, a clamping frame, a protective frame, and a drive device. Through the telescopic function of the clamping frame, the supporting effect of the support plate, and the protection of the protective frame, the stability and safety of the pipe fitting during the lifting process are ensured.
It improves the efficiency and safety of pipe hoisting, reduces labor intensity, prevents pipes from shaking or falling off, ensures production safety, and improves production efficiency.
Smart Images

Figure CN224449968U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lifting equipment technology, specifically to a pipe fitting protective lifting equipment. Background Technology
[0002] Pipe fittings generally refer to long cylindrical structures. Due to their long and special structure, it is difficult for one person to control them during transfer, so multiple people are often required to operate them simultaneously. However, this method is labor-intensive and inefficient. Therefore, lifting tools are often used for hoisting. For long pipe fittings, the existing hoisting methods use slings, chains, or hooks. However, only a small number of hooks can be used during hoisting, resulting in low hoisting efficiency, extended working time, and the hooks are prone to falling off during hoisting, causing production accidents. Manual operation is also required during unloading, which is not effective. Therefore, this technical solution is proposed to improve the process. Utility Model Content
[0003] The purpose of this utility model is to overcome the shortcomings of existing technologies, such as low efficiency and easy fall of pipe fittings during hoisting, and to provide a pipe fitting protective hoisting device.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: a pipe fitting protective lifting device, including a support frame connected to a crane, a pulley block for connecting the crane is provided on the upper part of the support frame, clamping frames are telescopically provided at both ends of the support frame, a support plate is provided on the lower part of the clamping frame along the width direction of the support frame, a protective frame is provided in the middle of the support frame, and the bottom of the protective frame is lower than the support plate.
[0005] Furthermore, mounting brackets are provided at both ends of the support frame, and a drive device for controlling the extension and retraction of the clamping frame is provided on the mounting bracket. The drive device includes a drive motor, and the output end of the drive motor is provided with two drive shafts. The output end of the drive shafts is connected to a drive wheel provided inside the support frame.
[0006] Furthermore, a telescopic rod is provided on the upper part of the clamping frame, and the end of the telescopic rod is slidably disposed inside the support frame.
[0007] Furthermore, a rack is provided on the upper part of the telescopic rod, and support wheels are provided on the top and bottom surfaces inside the support frame. The telescopic rod is slidably disposed between the support wheels, and the drive wheel is a gear that meshes with the rack.
[0008] Furthermore, the drive shaft is a universal joint, and a speed reducer is provided at the output end of the drive motor, with the end of the drive shaft connected to the speed reducer.
[0009] Furthermore, the two support plates are arranged horizontally in two pairs, and the upper surface of the support plates is provided with an anti-slip layer.
[0010] The beneficial effects of this utility model embodiment are as follows: Clamping frames are telescopically installed at both ends of the support frame. The clamping frames are designed to clamp and fix the pipe fittings during hoisting, preventing them from shaking or falling off. The ends of the telescopic rods are slidably installed inside the support frame. To ensure the stability and smoothness of the telescopic rods during sliding, the support plates are horizontally set. The function of the support plates is to support the pipe fittings during hoisting, preventing them from bending or deforming. The two support plates are horizontally set to ensure the stability of the pipe fittings during hoisting. The bottom of the protective frame is lower than the support plates, and the distance between the two protective frames is the area for placing the pipe fittings. During hoisting, even if the pipe fittings shake, the protective frames can still provide some protection, preventing the pipe fittings from falling directly and causing production accidents, thus improving safety. Furthermore, stacked pipe fittings can be hoisted, greatly improving production efficiency. Attached Figure Description
[0011] Figure 1 This is a front view structural diagram of the present utility model;
[0012] Figure 2 This is a top view of the structure of this utility model;
[0013] Figure 3 This is a side view of the structure of this utility model;
[0014] Figure 4 This is a schematic diagram of the support wheel structure of this utility model;
[0015] In the diagram: 1. Support frame; 101. Protective frame; 102. Pulley block; 2. Clamping frame; 201. Telescopic frame; 202. Support plate; 203. Protective layer; 3. Mounting frame; 301. Drive motor; 302. Drive shaft; 303. Support wheel; 304. Drive wheel; 305. Rack. Detailed Implementation
[0016] The 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 for explaining the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.
[0017] See Figures 1 to 4This utility model discloses a pipe fitting protective lifting device, which mainly includes a support frame 1 connected to a crane. The support frame 1 serves as the main structure of the entire lifting device, and a pulley block 102 for connecting the crane is provided on its upper part. Through the pulley block 102, the lifting device can be easily connected to the crane to realize lifting operations. The overall structure of the support frame 1 is a rectangular structure, and four pulley blocks 102 are provided on the upper part. When using the crane, the support frame 1 can be stably transferred and the balance of the support frame 1 can be maintained, thereby improving the use effect and control effect.
[0018] Clamping frames 2 are telescopically installed at both ends of the support frame 1. The clamping frames 2 are designed to clamp and secure the pipe fittings during hoisting, preventing them from shaking or falling off. To enable the telescopic function of the clamping frames 2, mounting frames 3 are provided at both ends of the support frame 1. A drive device for controlling the telescopic movement of the clamping frames 2 is installed on the mounting frames 3. The core component of this drive device is a drive motor 301. The output end of the drive motor 301 has two drive shafts 302. The output ends of the drive shafts 302 are connected to drive wheels 304 located inside the support frame 1. To enable the drive shafts... 302 can adapt to the transmission requirements of different angles. The drive shaft 302 adopts a universal joint design. The part of the drive shaft 302 inside the support frame 1 is equipped with a bearing to ensure the stability of the output direction. The output end of the drive motor 301 is also equipped with a reducer. The end of the drive shaft 302 is connected to the reducer. The reducer can reduce the output speed of the drive motor 301 and increase the torque, thereby ensuring the stability and reliability of the clamping frame 2 during the extension and retraction process. When the drive motor 301 starts, the clamping frame 2 can be driven to perform extension and retraction movement through the transmission of the drive shaft 302 and the drive wheel 304.
[0019] The upper part of the clamping frame 2 is equipped with a telescopic rod, the end of which is slidably disposed inside the support frame 1. To ensure the stability and smoothness of the telescopic rod during sliding, a rack 305 is provided on the upper part of the telescopic rod. Support wheels 303 are provided on the top and bottom surfaces inside the support frame 1. The telescopic rod is slidably disposed between the support wheels 303. The drive wheel 304 on the drive shaft 302 is a gear, which meshes with the rack 305 on the telescopic rod. When the drive shaft 302 rotates, the meshing action of the gear and the rack 305 drives the telescopic rod to extend and retract inside the support frame 1, thereby realizing the telescopic function of the clamping frame 2. During use, the distance between the two telescopic frames 201 can be adjusted according to the length of the pipe fitting, thereby clamping the pipe fitting between the two telescopic frames 201 and improving the usage effect.
[0020] A support plate 202 is provided at the lower part of the clamping frame 2 along the width direction of the support frame 1. The support plate 202 is horizontally set. The function of the support plate 202 is to support the pipe fittings during the hoisting process and prevent the pipe fittings from bending or deforming. The two support plates 202 are horizontally set to ensure the stability of the pipe fittings during the hoisting process. At the same time, the upper surface of the support plate 202 is provided with an anti-slip layer, which can increase the friction between the support plate 202 and the pipe fittings and prevent the pipe fittings from sliding during the hoisting process. In addition, the support plate 202 has a certain length, so multiple pipe fittings can be hoisted at the same time. If it is a large-diameter pipe fitting, the end face is supported by a telescopic frame 201 to ensure stability during the transportation process and prevent the pipe fittings from slipping during the transportation process, thus ensuring safe use. A protective frame 101 is installed in the middle of the support frame 1. The bottom of the protective frame 101 is lower than the support plate 202, and the distance between the two protective frames 101 is the area for placing pipe fittings. During the hoisting process, even if the pipe fittings sway, the protective frame 101 can play a certain blocking role to prevent the pipe fittings from falling directly and causing production accidents, thereby improving safety. It can also hoist stacked pipe fittings, greatly improving production efficiency.
[0021] In actual use, the operator first connects the lifting device to the crane via pulley block 102, then starts the drive motor 301 to extend the clamping frame 2 outwards, placing the pipe fitting on the support plate 202. Next, the operator starts the drive motor 301 again to retract the clamping frame 2 inwards, clamping and securing the pipe fitting. For multi-layered pipe fittings, a forklift can be used to lift the fittings a certain distance, facilitating the insertion of the support plate 202 to the bottom. Finally, the crane lifts the lifting device and pipe fitting together for transfer or installation. When unloading the pipe fitting, the operator simply reverses the steps. Through the telescopic function of the clamping frame 2, the supporting role of the support plate 202, and the protective function of the protective frame 101, the efficiency and safety of pipe fitting lifting are effectively improved, labor intensity is reduced, and production efficiency is increased.
[0022] 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.
[0023] 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.
[0024] 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.
[0025] 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 pipe protection sling comprising a support frame connected to a crane, characterized in that: The upper part of the support frame is provided with a pulley block for connecting the crane. Both ends of the support frame are telescopically provided with clamping frames. The lower part of the clamping frames is provided with a support plate along the width direction of the support frame. A protective frame is provided in the middle of the support frame, and the bottom of the protective frame is lower than the support plate.
2. The pipe guard hanger of claim 1, wherein: The support frame has mounting brackets at both ends, and the mounting brackets are equipped with drive devices for controlling the extension and retraction of the clamping frame. The drive device includes a drive motor, and the output end of the drive motor is provided with two drive shafts. The output ends of the drive shafts are connected to drive wheels located inside the support frame.
3. The pipe guard hanger of claim 2, wherein: The upper part of the clamping frame is provided with a telescopic rod, and the end of the telescopic rod is slidably disposed inside the support frame.
4. The pipe guard hanger of claim 3, wherein: The telescopic rod is provided with a rack at its upper part, and the top and bottom surfaces inside the support frame are provided with support wheels. The telescopic rod is slidably disposed between the support wheels, and the drive wheel is a gear that meshes with the rack.
5. The pipe guard hanger of claim 2, wherein: The drive shaft is a universal joint, and a speed reducer is provided at the output end of the drive motor. The end of the drive shaft is connected to the speed reducer.
6. The pipe guard hanger of claim 1, wherein: The two support plates are arranged in two pairs horizontally, and the upper surface of the support plates is provided with an anti-slip layer.