Safe self-closing rod device with adjustable size

Abstract

A size-adjustable safe self-closing rod device comprises an outer sleeve and an inner sleeve rod, the inner sleeve rod is composed of an arch-shaped lock and an extension rod, and the arch-shaped lock is in threaded connection with the extension rod; the outer sleeve is composed of an arch-shaped lock and a locking rod, and the arch-shaped lock is in threaded connection with the locking rod. The arched lock structure of the inner sleeve rod is the same as the arched lock structure of the outer sleeve. One end of a rectangular base of the arch-shaped lock is fixedly connected with an arch-shaped lock body, the other end of the rectangular base is hinged with a movable spring bolt, the arch-shaped lock body and the movable spring bolt are in butt joint to form a complete arch-shaped body, and stop blocks which limit each other are arranged at the butt joint position of the arch-shaped lock body and the movable spring bolt. The extension rod is inserted into the locking rod and fixed through a fixing stud, the top of the fixing stud is provided with a limiting block, the fixing stud is vertically inserted into the through hole, and the bottom of the fixing stud is fixed to a nut in a matched mode. The device is small in weight and size and convenient to carry, the practical effect of the position where a temporary safety fence needs to be erected on a ship at present is good, and the device is suitable for safety fence erecting operation of different installation positions and sizes.

Description

Technical Field

[0001] This invention belongs to the field of marine vessel design and construction, and specifically relates to a size-adjustable safety self-closing bar device. Background Technology

[0002] During shipbuilding, due to construction needs and production factors such as actual delivery, some safety facilities such as railings or barriers cannot be installed in a timely manner. Taking containers as an example, during the deck lashing bridge construction phase, the hinges originally installed at the handrail openings need to be removed because materials need to be transferred. To ensure construction safety, temporary erection is usually carried out on-site using methods such as bundling round pipes with wire. According to statistics, approximately 1,100 temporary safety facilities need to be erected during the construction of various ships. The current construction plan has many problems, which are summarized as follows:

[0003] 1. Traditional temporary safety facility erection and construction schemes are complicated, and the installation and dismantling process is time-consuming and labor-intensive. Two people are required to operate the facilities at the same time, which wastes manpower and material resources and causes waste of on-site resources.

[0004] 2. The round pipes used for temporary erection are generally of fixed size, which cannot meet the installation needs of different widths and positions. Therefore, they are not very applicable and cannot meet the erection needs of different sizes and positions. The storage and transportation of round pipes are time-consuming and labor-intensive, and the reuse rate is not high.

[0005] 3. Temporary sealing of general ship safety fence areas needs to be maintained for a long time. If traditional methods are used, the protective facilities will lose their original effectiveness after improper on-site storage or long-term use, leaving safety hazards and losing their original protective significance, which will have a significant impact on on-site construction. Summary of the Invention

[0006] To address the above problems, this invention provides a size-adjustable safety self-closing bar device, the technical solution of which is as follows:

[0007] An adjustable-size safety self-closing rod device includes an outer sleeve and an inner sleeve. The inner sleeve consists of an arched lock and an extension rod, with the arched lock threadedly connected to the extension rod. The outer sleeve consists of an arched lock and a locking rod, with the arched lock threadedly connected to the locking rod. Both the extension rod and the locking rod are hollow cylinders, with the outer diameter of the extension rod being smaller than the inner diameter of the locking rod. The arched lock structure of the inner sleeve is the same as that of the outer sleeve.

[0008] The arched lock has a rectangular base, an arched lock body, and a movable latch. The arched lock body is fixedly connected to one end of the rectangular base, and the movable latch is hinged to the other end. The arched lock body and the movable latch are joined together to form a complete arched body. Mutually limiting blocks are provided at the joint between the arched lock body and the movable latch.

[0009] The base is internally provided with a spring, one end of the spring is connected with the arch-shaped lock body, and the other end is connected with the movable lock tongue.

[0010] The extension rod and the locking rod are provided with a long strip-shaped through hole on the surface, the through hole is arranged along the length direction of the extension rod and the locking rod, the extension rod is inserted into the locking rod, and the extension rod is fixed through a fixing stud, the fixing stud is provided with a limiting block at the top, and the fixing stud is vertically inserted into the through hole and is fixed with a nut at the bottom.

[0011] The size-adjustable safe self-closing rod device is further provided with a locking screw rod on the side of the base away from the arch-shaped lock, the locking screw rod is provided with external threads, the end of the extension rod and the locking rod is provided with a strip-shaped groove matched with the locking screw rod, and the strip-shaped groove is provided with internal threads, and the locking screw rod is threadedly connected with the extension rod and the locking rod.

[0012] The size-adjustable safe self-closing rod device is further provided with a rotating handle at the top of the fixing stud.

[0013] The size-adjustable safe self-closing rod device is further provided with a fixing stud at each end of the base, one of the fixing studs is connected with the movable lock tongue, and the other fixing stud is connected with the base.

[0014] The size-adjustable safe self-closing rod device is further provided with a fixing stud at each end of the base, one of the fixing studs is connected with the movable lock tongue, and the other fixing stud is connected with the base.

[0015] The size-adjustable safe self-closing rod device is further provided with a fixing stud at each end of the base, one of the fixing studs is connected with the movable lock tongue, and the other fixing stud is connected with the base.

[0016] The size-adjustable safe self-closing rod device is further provided with a fixing stud at each end of the base, one of the fixing studs is connected with the movable lock tongue, and the other fixing stud is connected with the base. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is an external sleeve structure schematic view;

[0018] Figure 2 is an internal sleeve structure schematic view;

[0019] Figure 3 is an external sleeve or internal sleeve rod exploded structure schematic view;

[0020] Figure 4 is a fixing stud structure schematic view;

[0021] Figure 5 is the combined structure schematic diagram;

[0022] Figure 6 is the structure schematic diagram of the extension rod and the locking rod surface with through holes;

[0023] Wherein, 1-extension rod, 2-locking rod, 3-base, 4-arch lock body, 5-movable lock tongue, 6-through hole, 7-fixing stud, 8-spring, 9-nut, 10-locking screw, 11-rotary handle, 12-fixing column. DETAILED DESCRIPTION

[0024] The application is further described in conjunction with the drawings.

[0025] As Figure 1 , 2 shown, a size-adjustable safety self-closing rod device includes an external sleeve and an internal sleeve rod, the internal sleeve rod is composed of an arch lock and an extension rod, the arch lock is threadedly connected with the extension rod; the external sleeve is composed of an arch lock and a locking rod, the arch lock is threadedly connected with the locking rod; the extension rod and the locking rod are both internally hollow cylinders, the outer diameter of the extension rod is 1-2mm smaller than the inner diameter of the locking rod, the arch lock structure of the internal sleeve rod is the same as that of the external sleeve.

[0026] The arch lock has a rectangular base, an arch lock body and a movable lock tongue, one end of the rectangular base is fixedly connected with the arch lock body, the other end is hingedly connected with the movable lock tongue, the arch lock body and the movable lock tongue are butted to form a complete arch main body, and a stop block that limits each other is arranged at the butt joint of the arch lock body and the movable lock tongue. The base away from the arch lock is provided with a locking screw, the locking screw is provided with external threads, the extension rod and the locking rod are provided with a strip-shaped groove at the end portion, the strip-shaped groove is provided with internal threads, and the locking screw is threadedly connected with the extension rod and the locking rod.

[0027] The arch lock body and the base are an integral structure, and two fixing columns are respectively arranged at the two ends in the base, one of the fixing columns is connected with the movable lock tongue, and the other fixing column is connected with the base. A spring is arranged in the base, one end of the spring is connected with the arch lock body, and the other end of the spring is connected with the movable lock tongue.

[0028] The extension rod and the locking rod are provided with a long strip-shaped through hole on the surface, the through hole is arranged along the length direction of the extension rod and the locking rod, the extension rod is inserted into the locking rod, and the extension rod is fixed through a fixing stud, the top of the fixing stud is provided with a limiting block, the fixing stud is vertically inserted into the through hole, the bottom is matched and fixed with a nut, and the top of the fixing stud is provided with a rotary handle.

Claims

1. A size-adjustable safety self-closing bar device, characterized in that, It includes an outer sleeve and an inner sleeve rod. The inner sleeve rod consists of an arched lock and an extension rod, with the arched lock and extension rod being threaded together. The outer sleeve consists of an arched lock and a locking rod, with the arched lock and locking rod being threaded together. Both the extension rod and the locking rod are hollow cylinders. The outer diameter of the extension rod is smaller than the inner diameter of the locking rod. The arched lock structure of the inner sleeve rod is the same as that of the outer sleeve rod. The arched lock has a rectangular base, an arched lock body, and a movable latch. The arched lock body is fixedly connected to one end of the rectangular base, and the movable latch is hinged to the other end. The arched lock body and the movable latch are joined together to form a complete arched body. Mutually limiting blocks are provided at the joint between the arched lock body and the movable latch. A spring is installed inside the base, with one end of the spring connected to the arched lock body and the other end connected to the movable lock tongue; The extension rod and locking rod have elongated through holes on their surfaces. The through holes are set along the length of the extension rod and locking rod. The extension rod is inserted into the locking rod and fixed by a fixing stud. The top of the fixing stud has a limit block. The fixing stud is inserted vertically into the through hole and fixed by a nut at the bottom.

2. The size-adjustable safety self-closing rod device according to claim 1, characterized in that, A locking screw is provided on the side of the base away from the arched lock. The locking screw has external threads. The ends of the extension rod and the locking rod have strip grooves that mate with the locking screw. The strip grooves have internal threads. The locking screw is threadedly connected to the extension rod and the locking rod.

3. The size-adjustable safety self-closing rod device according to claim 1, characterized in that, The top of the fixing stud is equipped with a rotating handle.

4. The size-adjustable safety self-closing rod device according to claim 1, characterized in that, The arched lock body and the base are integrated into one structure. There is a fixed post at each end inside the base. One fixed post is connected to the movable lock tongue, and the other fixed post is connected to the base.

5. The size-adjustable safety self-closing rod device according to claim 1, characterized in that, The outer diameter of the extension rod is 1-2 mm smaller than the inner diameter of the locking rod.

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