Anti-falling telescopic stop lever for ship manhole

Abstract

The utility model provides an anti-drop telescopic stop lever for a ship manhole, which comprises two main stop levers and four telescopic stop levers, the middle parts of the two main stop levers are rotatably connected, the four telescopic stop levers are respectively arranged at the end parts of the two main stop levers, and one ends of the telescopic stop levers far away from the main stop levers are provided with oblong holes. The oblong hole is connected with the manhole cover seat plate through a bolt; the telescopic stop lever comprises a connecting sleeve and an auxiliary stop lever, one end of the connecting sleeve is connected with the main stop lever, a plurality of round holes are formed in the connecting sleeve at intervals and used for allowing bolts to penetrate through, the other end of the auxiliary stop lever extends into the connecting sleeve, and when the telescopic stop lever is used, the length of the telescopic stop lever is adjusted by fastening the bolts on the connecting sleeve. The manhole protection device is used for ship manhole protection, is simple in structure and can adapt to manholes of different sizes.

Description

Technical Field

[0001] The utility model belongs to the technical field of shipbuilding, and particularly relates to an anti-falling telescopic lever used for a ship manhole. Background Art

[0002] Since there are many people in the ship construction process and multiple departments are working in the same area at the same time, ensuring the construction environment and construction safety has become the top priority. In order to facilitate cabin ventilation and personnel entry and exit during the ship construction process, most manholes are pre-installed with manhole cover base plates without manhole cover plates. In this way, when the manhole is open, construction workers may accidentally fall and get injured. It is inconvenient to move, disassemble and install the manhole cover plates for temporary blocking, which reduces construction efficiency and affects cabin ventilation. Utility Model Content

[0003] In view of the above technical problems, the utility model provides a retractable and adjustable anti-fall safety lever for a ship manhole, which has a simple structure and is adaptable to manhole seat plates of different sizes.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A fall-proof telescopic stop rod for a ship manhole comprises two main stop rods and four telescopic stop rods. The middle parts of the two main stop rods are rotatably connected. The four telescopic stop rods are respectively arranged at the ends of the two main stop rods. An oblong hole is opened at one end of the telescopic stop rod away from the main stop rod. When in use, the oblong hole is connected to a manhole cover base plate by bolts.

[0006] Furthermore, the telescopic barrier rod includes a connecting sleeve and an auxiliary barrier rod. One end of the connecting sleeve is connected to the main barrier rod. A plurality of bolts are provided at intervals on the connecting sleeve to fix the auxiliary barrier rod. The other end of the auxiliary barrier rod extends into the connecting sleeve. When in use, the length of the telescopic barrier rod is adjusted by tightening the pipe bolts on the connecting sleeve.

[0007] Furthermore, a connecting bottom plate is fixed to one end of the main stop rod connected to the telescopic stop rod, and an end surface of one end of the connecting sleeve is fixedly connected to the connecting bottom plate.

[0008] Furthermore, the main barrier rod and the auxiliary barrier rod are both flat steels, and the bolts are arranged perpendicular to the wide surface of the flat steel.

[0009] The utility model discloses a telescopic lever for preventing a manhole from falling off a ship, which is used for temporary protection of the manhole in an open state during the construction of the ship, and the adjustable length and angle can be used in conjunction with manholes of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1This is a schematic diagram of the use state of the anti-fall telescopic lever for a ship manhole according to the utility model;

[0011] Figure 2 This is the main diagram of the anti-fall telescopic lever for ship manholes described in the utility model;

[0012] Figure 3 It is a side view of the anti-fall telescopic lever for a ship manhole according to the utility model;

[0013] Figure 4 yes Figure 3 Middle BB direction view;

[0014] Figure 5 yes Figure 3 Middle CC direction view.

[0015] Among them, 1- auxiliary barrier rod, 2- main barrier rod, 3- connecting sleeve, 4- bolt, 5- connecting bottom plate, 6- manhole cover base plate, 31- round hole, 11- oblong hole. DETAILED DESCRIPTION

[0016] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0017] like Figure 1-Figure 5 As shown, a fall-proof telescopic stop rod for a ship manhole comprises two main stop rods 2 and four telescopic stop rods. The middle parts of the two main stop rods 2 are rotatably connected, and the four telescopic stop rods are respectively arranged at the ends of the two main stop rods 2. The telescopic stop rod comprises a connecting sleeve 3 and an auxiliary stop rod 1. A connecting base plate 5 is fixed to one end of the main stop rod 2 connected to the telescopic stop rod, and one end face of the connecting sleeve 3 is fixedly connected to the connecting base plate 5. A plurality of circular holes 31 are arranged at intervals on the connecting sleeve 3 for passing bolts 4. An oblong hole 11 is arranged at one end of the auxiliary stop rod 1 away from the main stop rod 2, and the other end of the auxiliary stop rod 1 is vertically extended into the connecting sleeve. When in use, a circular hole 31 is passed through the bolt 4, and the oblong hole 11 is connected to the manhole cover base plate 6 by bolts. The main stop rod 2 and the auxiliary stop rod 1 are both flat steel, and the bolt 4 is arranged perpendicular to the wide surface of the flat steel.

[0018] The above are only preferred implementation modes of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. For ordinary technicians in this field, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model should be regarded as the protection scope of the present utility model.

Claims

1. A telescopic anti-fall lever for a ship manhole, characterized in that: It includes two main blocking rods and four telescopic blocking rods. The middle parts of the two main blocking rods are rotatably connected. The four telescopic blocking rods are respectively arranged at the ends of the two main blocking rods. An oblong hole is opened at the end of the telescopic blocking rod away from the main blocking rod. When in use, the oblong hole is connected to the manhole cover base plate by bolts.

2. The anti-fall telescopic lever for a ship manhole according to claim 1, characterized in that: The telescopic barrier rod includes a connecting sleeve and an auxiliary barrier rod. One end of the connecting sleeve is connected to the main barrier rod. A plurality of circular holes are spaced apart on the connecting sleeve for passing bolts to fix the auxiliary barrier rod. The other end of the auxiliary barrier rod extends into the connecting sleeve. When in use, the length of the telescopic barrier rod is adjusted by tightening the pipe bolt on the connecting sleeve.

3. The anti-fall telescopic lever for a ship manhole according to claim 2, characterized in that: A connecting bottom plate is fixed to one end of the main stop rod connected to the telescopic stop rod, and an end surface of one end of the connecting sleeve is fixedly connected to the connecting bottom plate.

4. The anti-fall telescopic lever for a ship manhole according to claim 2, characterized in that: The auxiliary stop rod is a flat steel, and the bolts are arranged perpendicular to the wide surface of the flat steel.

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