Safety protection device for hawse pipe

By designing a safety protection device for anchor chain pipes, and utilizing a combination of flaps and fixing plates, the holes in the anchor chain pipes can be quickly sealed, solving the safety hazards and demolition costs during construction, and improving construction safety and efficiency.

CN223982652UActive Publication Date: 2026-03-10YANGZHOU DAYANG SHIPBUILDING
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-29
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

During shipbuilding, the lack of safety protection measures around the anchor chain pipes can lead to workers and materials falling, posing a safety hazard. Furthermore, traditional protection solutions require dismantling and grinding, increasing labor costs.

Method used

Design a safety protection device for anchor chain pipes, including a protective cover plate and a positioning device. Utilizing a hinged flap and a fixing plate, combined with springs and rollers, it can quickly seal anchor chain pipe holes and adapt to different pipe diameters. The flap can be opened independently to allow tools to pass through.

Benefits of technology

It enables quick and convenient temporary sealing, prevents positional deviation, adapts to various pipe diameters, reduces safety hazards and rework during construction, and lowers labor costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a chain pipe safety protection device which comprises a protection cover plate, the outer edge of the protection cover plate abuts against and makes contact with the upper end face of a chain pipe, the protection cover plate comprises a fixing plate and a turning plate, the turning plate is connected with the fixing plate through a hinge, and a plurality of positioning devices are fixedly connected to the lower surface of the fixing plate. The positioning device comprises a positioning pile perpendicular to the lower surface of the fixing plate, a horizontally-arranged mounting hole is formed in the positioning pile and comprises an open end and a closed end, the open end faces the inner wall of the anchor chain pipe, an annular check ring is arranged at the open end, a connecting rod is arranged in the mounting hole and comprises a large-diameter section and a small-diameter section, and the large-diameter section and the small-diameter section are connected through the annular check ring. One end of the large-diameter section is fixedly connected with the small-diameter section, the other end of the large-diameter section is fixedly connected with the spring, the other end of the spring is fixedly connected with the closed end of the installation hole, the small-diameter section penetrates through the check ring and extends out of the installation hole, and a roller is installed at the end, close to the inner wall of the anchor chain pipe, of the small-diameter section. The hole of the hawse pipe can be quickly and conveniently plugged temporarily, and secondary reworking operation is avoided.
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Description

TECHNICAL FIELD

[0001] The utility model relates to shipbuilding construction technical field, concretely relates to a chain pipe safety protection device. BACKGROUND

[0002] In the shipbuilding process, when the anchor chain pipe around the bow deck is not protected, the construction personnel will easily fall when passing through the anchor chain pipe, and some construction materials will also fall along the anchor chain pipe, forming high-falling objects, which will cause casualties and safety hazards.

[0003] The traditional protection scheme currently used is to use a scaffold board to temporarily block the anchor chain pipe at the anchor chain pipe of the bow deck, and to use a scaffold tube welded around the anchor chain pipe as a temporary protective rail, but after the completion of the ship, the welded scaffold tube needs to be removed, and the deck surface at the welding position needs to be polished and repainted, which increases the labor cost.

[0004] Therefore, it is necessary to provide a chain pipe safety protection device to solve the above technical problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at the deficiencies in the prior art, and provides a chain pipe safety protection device, which can quickly and conveniently temporarily block the holes of the anchor chain pipe and avoid secondary return work.

[0006] To achieve the above object, the utility model adopts the technical scheme of:

[0007] A chain pipe safety protection device, comprising a protective cover plate, the outer edge of the protective cover plate is in abutting contact with the upper end surface of the anchor chain pipe, the protective cover plate comprises a fixed plate and a flap, the flap is connected with the fixed plate through a hinge, a plurality of positioning devices are fixedly connected to the lower surface of the fixed plate, the positioning device comprises a positioning stake vertically arranged on the lower surface of the fixed plate, a mounting hole horizontally arranged in the positioning stake is provided, the mounting hole comprises an open end and a closed end, the open end faces the inner wall of the anchor chain pipe, the open end is provided with an annular retaining ring, a connecting rod is arranged in the mounting hole, the connecting rod comprises a large diameter section and a small diameter section, one end of the large diameter section is fixedly connected with the small diameter section, the other end of the large diameter section is fixedly connected with a spring, the other end of the spring is fixedly connected with the closed end of the mounting hole, the small diameter section penetrates through the retaining ring and extends out of the mounting hole, a roller is arranged on one end of the small diameter section close to the inner wall of the anchor chain pipe.

[0008] Preferably, the upper surfaces of the fixed plate and the flap are provided with handles.

[0009] Preferably, the end face of the large diameter section close to the retaining ring is in abutting contact with the retaining ring.

[0010] Preferably, the positioning device is provided with four.

[0011] Compared with the prior art, this utility model has the following advantages:

[0012] 1. Before the ship is completed, it can be convenient and quick to temporarily seal the holes of the anchor chain pipe. The positioning device installed on the lower surface of the fixing plate can prevent the protective cover plate from shifting position. At the same time, with the cooperation of springs, connecting rods and rollers, the positioning device can still firmly fix the inner wall of the anchor chain pipe even when facing anchor chain pipes of different diameters, thus improving the applicability of this device.

[0013] 2. The protective cover is divided into two parts: a fixed plate and a flip plate. When tools or cables need to pass through the anchor chain pipe during construction, the flip plate can be lifted directly, which facilitates the transfer of tools and eliminates the need to remove the entire protective cover. Attached Figure Description

[0014] Figure 1 This is the front view of this utility model;

[0015] Figure 2 This is a structural schematic diagram of the protective cover plate;

[0016] Figure 3 This is the front view of the positioning device;

[0017] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0018] Among them, 1-fixed plate, 2-flip plate, 3-positioning stake, 4-ring retaining ring, 5-connecting rod, 501-large diameter section, 502-small diameter section, 6-spring, 7-roller, 8-handle, 9-anchor chain tube Detailed Implementation

[0019] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. After reading the present invention, any modifications of the present invention in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims.

[0020] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixed connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] In this utility model, terms such as "upper", "lower", "bottom", and "top" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of the structural relationship between the various components or elements of this utility model and do not specifically refer to any component or element in this utility model. They should not be construed as limiting this utility model.

[0022] like Figures 1 to 4 As shown, a safety protection device for anchor chain pipes includes a protective cover plate. The outer edge of the protective cover plate abuts against the upper end face of the anchor chain pipe 9. The protective cover plate includes a fixed plate 1 and a flap plate 2. The flap plate and the fixed plate are connected by a hinge. Four positioning devices are fixedly attached to the lower surface of the fixed plate. The positioning devices include positioning stakes 3 that are welded and fixed perpendicularly to the lower surface of the fixed plate. The positioning stakes have horizontally set installation holes inside. The installation holes include an open end and a closed end. The open end faces the inner wall of the anchor chain pipe and is provided with an annular retaining ring 4. A connecting rod 5 is provided in the installation hole. The connecting rod includes a large-diameter section 501 and a small-diameter section 502. One end of the large-diameter section is fixedly connected to the small-diameter section, and the other end is fixedly connected to a spring 6. The other end of the spring is fixedly connected to the closed end of the installation hole. The end face of the large-diameter section near the retaining ring abuts against the retaining ring. The small-diameter section passes through the retaining ring and extends to the outside of the installation hole. A roller 7 is installed at the end of the small-diameter section near the inner wall of the anchor chain pipe. Handles 8 are welded and fixed to the upper surfaces of the fixed plate and the flap plate.

[0023] The principle and usage of a safety protection device for anchor chain pipes: During shipbuilding, to prevent safety hazards, it is necessary to temporarily seal the holes in the anchor chain pipes. The protective cover plate of this device is placed over the holes in the anchor chain pipes, with the outer edge of the lower surface of the protective cover plate abutting against the upper end face of the anchor chain pipe. During installation, the rollers of the four positioning devices are squeezed by the inner wall of the anchor chain pipe, pushing the connecting rod towards the closed end of the installation hole. At the same time, the connecting rod, under the reaction force of the spring, keeps the rollers pressed tightly against the inner wall of the anchor chain pipe, fixing the position of the protective cover plate and preventing it from shifting. The connecting rod is limited by the retaining ring. When it is necessary to pass tools through the anchor chain pipe, the flap can be lifted directly to complete the transportation of tools without removing the entire protective cover plate. It is convenient to use and can be applied to anchor chain pipes of multiple diameters.

[0024] The foregoing description illustrates and describes preferred embodiments of the present invention. As previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A chain pipe safety guard, characterised in that: The application relates to a protective cover plate, the outer edge of the protective cover plate is in abutting contact with the upper end surface of a chain pipe (9), the protective cover plate comprises a fixed plate (1) and a turning plate (2), the turning plate is connected with the fixed plate through a hinge, a plurality of positioning devices are fixedly connected to the lower surface of the fixed plate, the positioning devices comprise positioning piles (3) which are vertically arranged on the lower surface of the fixed plate, the positioning piles are internally provided with horizontally-arranged mounting holes, the mounting holes comprise an open end and a closed end, the open end faces the inner wall of the chain pipe, the open end is provided with an annular stop ring (4), a connecting rod (5) is arranged in the mounting hole, the connecting rod comprises a large-diameter section (501) and a small-diameter section (502), one end of the large-diameter section is fixedly connected with the small-diameter section, the other end of the large-diameter section is fixedly connected with a spring (6), the other end of the spring is fixedly connected with the closed end of the mounting hole, the small-diameter section penetrates through the stop ring and extends to the outside of the mounting hole, a roller (7) is arranged on one end of the small-diameter section which is close to the inner wall of the chain pipe.

2. A chain pipe safety guard according to claim 1, characterised in that: The upper surfaces of the fixed plate and the turning plate are provided with handles (8).

3. A chain pipe safety guard according to claim 1, characterised in that: The end surface of the large-diameter section which is close to the stop ring is in abutting contact with the stop ring.

4. A chain pipe safety guard according to claim 1, characterised in that: The positioning devices are four in number.