Telescopic hinge type lifting tool
By designing telescopic hinge lifting tools, the problems of shaking and sealing ring damage during the installation of explosion-proof doors in the pre-installation stage of marine diesel engines are solved, and higher installation accuracy and quality are achieved, reducing the risk of oil leakage.
Patent Information
- Application Number
- CN202311382868.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-10-24
- Publication Date
- 2025-04-25
AI Technical Summary
During the pre-installation stage of large marine diesel engines, when installing EVX series explosion-proof doors, the existing lifting process is difficult to control due to the inclination angle of the frame side plates, resulting in shaking of the explosion-proof door, damage to the seal ring and oil leakage during the test run.
Design a telescopic hinge lifting tool, including a frame, a hanging plate, a telescopic hinge frame, a support bracket and a quick joint. By adjusting the lifting position and angle, it meets the installation requirements of explosion-proof doors of different models and improves the versatility of the tools.
It effectively solves the problems of shaking and damage to the sealing ring during the installation process, improves installation accuracy and quality, and reduces the risk of oil leakage during the test run.
Smart Images

Figure CN119873578A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of lifting tools, in particular to a telescopic hinge type lifting tool. Background Art
[0002] The manufacturing process of large marine diesel engines is divided into pre-assembly and final assembly stages. During the pre-assembly stage of the frame, when installing the explosion-proof door, due to the tilt angle of the side panel of the frame, the explosion-proof door is easy to shake after being lifted up for the existing old-fashioned lifting process. During the installation process, it is easy to touch the protruding installation plane, resulting in the sealing ring flanging after installation, and the explosion-proof door leaking oil during the test run. Therefore, in order to solve the problem that the EVX series explosion-proof door is easy to touch the sealing ring, causing the sealing ring to flanging or damage, and oil leakage during the test run, a lifting tool is designed. The telescopic hinge lifting tool solves the shaking of the explosion-proof door lifting to a large extent, and the lifting position can be adjusted according to the weight of the explosion-proof door, which is used to change the installation angle after lifting.
[0003] At present, the problems of installing explosion-proof doors in the pre-installation stage of the frame are as follows: 1: There are no special tools for installing explosion-proof doors in the pre-installation stage of the frame, and the lifting process is very dangerous and difficult to control; 2: The current on-site installation and lifting tools cannot meet their ultra-high installation precision, and collisions are prone to cause deformation or damage of the sealing ring, resulting in oil leakage during the test run; 3: The existing lifting method cannot improve the installation efficiency and quality. For this reason, a telescopic hinged lifting tool is proposed. Summary of the invention
[0004] 1. Technical issues to be solved
[0005] In view of the deficiencies in the prior art, the present invention provides a telescopic hinged lifting tool to solve the problem that during the pre-installation stage of a large two-stroke diesel engine frame, due to the inclination angle of the frame side panel, the EVX series explosion-proof door is easily touched by the sealing ring when installing it, causing the sealing ring to flanging and oil leakage during the test run.
[0006] (II) Technical solution
[0007] To achieve the above object, the present invention provides the following technical solution: a telescopic hinged lifting tool, comprising:
[0008] A rack, a hanging plate and a telescopic hinged rack, wherein a plurality of EVX explosion-proof doors are arranged on one side of the front end of the outer side of the rack;
[0009] The support bracket is arranged inside the hanging plate, and the support bracket is fixedly connected to the hanging plate;
[0010] There are three quick connectors, and the three quick connectors are respectively arranged at the three ends of the telescopic hinge frame. One side of the rear end of the quick connector is provided with a thread, and the outside of the EVX explosion-proof door is provided with a thread structure compatible with the quick connector.
[0011] Preferably, a disc is provided on one side of the front end of the outer portion of the support bracket, and the disc is fixedly connected to the support bracket.
[0012] Preferably, a circular groove is provided at the center position inside the circular disk, a metal inner disk is installed inside the circular groove, the metal inner disk is made of metal iron, and the circular groove is used for embedding and installing the metal inner disk.
[0013] Preferably, a magnet disk is provided at the front end of the circular groove, and the magnet disk is adapted to the circular groove. Four groups of limiting structures evenly distributed along a ring are provided on the outside of the circular disk. The limiting structure includes two limiting bars. The magnet disk is fitted with the metal inner disk, and the magnet disk is adsorbed and fixed under the action of magnetic force.
[0014] Preferably, a fixing rod is provided at the lower end of the magnet disk, and the fixing rod is fixedly connected to the magnet disk, the width between the two limiting strips is the same as the width of the fixing rod, and the limiting strip serves to limit the fixing angle of the fixing rod.
[0015] Preferably, a level is installed at the lower end of the fixing rod, a grip is installed at the lower end of the level, and the grip is fixedly connected to the level, and the level is used to detect whether the fixing rod and the hanging plate are level.
[0016] (III) Beneficial effects
[0017] Compared with the prior art, the present invention provides a telescopic hinged lifting tool, which has the following beneficial effects:
[0018] 1. The present invention can meet the use requirements by installing the lifting tool on the explosion-proof door, installing the shackle on the hanging plate where the lifting shackle is installed, and then adjusting the center of gravity position, adjusting the angle after lifting, and then performing translational docking installation of the threaded hole. In addition, the distance of the telescopic hinge frame of the tool can be adjusted according to the model of EVX explosion-proof doors of different models, thereby improving the versatility of the tool and solving the problems raised in the background technology. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention;
[0020] Figure 2 It is a three-dimensional diagram of the hanging plate structure of the present invention;
[0021] Figure 3 It is a three-dimensional diagram of the telescopic hinge frame structure of the present invention.
[0022] In the figure: 1. Frame; 2. Telescopic hinge frame; 3. Hanging plate; 4. Support bracket; 5. Quick connector; 6. EVX explosion-proof door; 7. Disc; 8. Metal inner disc; 9. Limiting strip; 10. Magnetic disc; 11. Fixing rod; 12. Level; 13. Grip. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0024] The present invention provides a technical solution, a telescopic hinge lifting tool, see Figure 1 , Figure 2 and Figure 3 ,include:
[0025] A rack 1, a hanging plate 3 and a telescopic hinge frame 2, and a plurality of EVX explosion-proof doors 6 are arranged on one side of the front end of the outer side of the rack 1;
[0026] The support bracket 4 is arranged inside the hanging plate 3, and the support bracket 4 is fixedly connected to the hanging plate 3;
[0027] There are three quick connectors 5 , and the three quick connectors 5 are respectively arranged at the three ends of the telescopic hinge frame 2 , a thread is arranged on one side of the rear end of the quick connector 5 , and a thread structure matching the quick connector 5 is arranged on the outside of the EVX explosion-proof door 6 .
[0028] See also Figure 2 A disc 7 is provided on one side of the front end of the outer side of the support bracket 4 , and the disc 7 is fixedly connected to the support bracket 4 .
[0029] See also Figure 2 A circular groove is arranged at the center of the circular disk 7, and a metal inner disk 8 is installed inside the circular groove. The metal inner disk 8 is made of metal iron, and the circular groove is used to embed and install the metal inner disk 8.
[0030] See also Figure 2 A magnet disk 10 is provided at the front end of the circular groove, and the magnet disk 10 is adapted to the circular groove. Four groups of limiting structures evenly distributed along the ring are provided on the outside of the circular disk 7. The limiting structure includes two limiting strips 9. The magnet disk 10 is fitted with the metal inner disk 8, and the magnet disk 10 is adsorbed and fixed under the action of magnetic force.
[0031] See also Figure 2A fixing rod 11 is provided at the lower end of the magnet disk 10, and the fixing rod 11 is fixedly connected to the magnet disk 10. The width between the two limiting strips 9 is the same as the width of the fixing rod 11. The limiting strip 9 serves to limit the fixing angle of the fixing rod 11.
[0032] See also Figure 2 A level 12 is installed at the lower end of the fixing rod 11, and a grip 13 is installed at the lower end of the level 12. The grip 13 is fixedly connected to the level 12. The level 12 is used to detect whether the fixing rod 11 and the hanging plate 3 are level.
[0033] The working principle of this device is: install the lifting tool on the explosion-proof door, install the shackle on the hanging plate 3 where the lifting shackle is installed, and then adjust the center of gravity position, adjust the angle after lifting, and then translate and dock the threaded holes to meet the use requirements, and the distance of the telescopic hinge frame 2 of the tool can be adjusted according to the model of EVX explosion-proof door 6 of different models to improve the versatility of the tool. When using the hanging plate 3, rotate the fixing rod 11 to the inside of the limit strip 9 in the required direction for limiting, adsorb the magnet disk 10 on the metal inner disk 8, and observe the spirit level 12 to adjust the use angle of the hanging plate 3 horizontally or at an angle.
[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A telescopic hinged lifting tool, characterized in that: include: A frame (1), a hanging plate (3) and a telescopic hinge frame (2), wherein a plurality of EVX explosion-proof doors (6) are arranged on one side of the front end of the frame (1); A support bracket (4) is arranged inside the hanging plate (3), and the support bracket (4) is fixedly connected to the hanging plate (3); Three quick connectors (5) are provided, and the three quick connectors (5) are respectively provided at three ends of the telescopic hinge frame (2), a thread is provided on one side of the rear end of the quick connector (5), and a thread structure matching the quick connector (5) is provided on the outside of the EVX explosion-proof door (6).
2. A telescopic hinged lifting tool according to claim 1, characterized in that: A disc (7) is provided on one side of the front end of the outer side of the support bracket (4), and the disc (7) is fixedly connected to the support bracket (4).
3. A telescopic hinged lifting tool according to claim 2, characterized in that: A circular groove is arranged at the center position inside the circular disc (7), and a metal inner disc (8) is installed inside the circular groove. The metal inner disc (8) is made of metal iron.
4. A telescopic hinged lifting tool according to claim 3, characterized in that: A magnet disk (10) is arranged at the front end of the circular groove, and the magnet disk (10) is adapted to the circular groove. Four groups of limiting structures evenly distributed along a ring are arranged outside the circular disk (7), and the limiting structures include two limiting strips (9).
5. A telescopic hinged lifting tool according to claim 4, characterized in that: A fixing rod (11) is provided at the lower end of the magnet disk (10), and the fixing rod (11) is fixedly connected to the magnet disk (10), and the width between the two limiting strips (9) is the same as the width of the fixing rod (11).
6. A telescopic hinged lifting tool according to claim 5, characterized in that: A level meter (12) is installed at the lower end of the fixing rod (11), a gripping rod (13) is installed at the lower end of the level meter (12), and the gripping rod (13) is fixedly connected to the level meter (12).