Outward-opening type observation hole cover hinged to inner side of protective cover
By designing an open-type observation hole cover on the inside of the protective cover, the problems of easy blockage of the hinge and difficulty in repair are solved, and safety and maintenance convenience are achieved. It is suitable for the observation hole cover design of ship cargo holds.
Patent Information
- Application Number
- CN202422200389.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-09-09
AI Technical Summary
In the prior art, the hinge is located outside the protective cover and is easily blocked by cargo, resulting in the observation hole cover being unable to be opened, and it is difficult to repair, endangering personnel safety.
An open-type viewing hole cover with a hinged hinge inside the protective cover is designed, including a cover plate, a hinge arm, a first eye plate, a second eye plate and a third eye plate. The rotation of the cover plate is achieved through the hinge arm, an eye ring and an operating chain, ensuring that the cover plate is opened and closed on the inside of the cargo hold.
The observation hole cover is automatically closed under cargo squeeze, preventing cargo from pouring in, improving safety and easy maintenance. It only needs to stand on the cargo hold ladder, without additional platforms or ladders.
Smart Images
Figure CN223237860U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of bulk carrier cargo hold outfitting, in particular to an outward-opening observation hole cover with a hinge on the inner side of a protective cover. Background Art
[0002] Large ore carriers have two hinged observation holes on the front and rear walls of the cargo holds, each located along the height of the ship. These holes are used to observe the storage status of the cargo within the holds. These holes open into the hold after the latch is unlatched. The hinges are located outside the protective cover, within the cargo hold. These hinges are easily blocked by cargo, often preventing the covers from opening. Furthermore, the high position of the observation holes requires personnel to enter the cargo hold to repair the hinges, making maintenance difficult. Summary of the Invention
[0003] The utility model aims to provide a simple outward-opening observation hole cover with a hinge on the inner side of a protective cover. The hole cover has a simple structure and is easy to maintain, and also meets the use requirements.
[0004] The utility model solves the technical problem by adopting the following technical solutions:
[0005] An outward-opening observation hole cover hinged on the inner side of a protective cover is provided with an observation hole on a cargo hold bulkhead, the observation hole cover comprising a cover plate, a hinge arm, a first eye plate, a second eye plate, and a third eye plate;
[0006] A first eye plate and a second eye plate are fixedly mounted on the cargo hold bulkhead inside the protective cover on both sides of the observation hole, respectively; a hinge arm and a third eye plate are fixedly mounted on both sides of the cover plate, respectively; the cover plate is located inside the cargo hold, and one side of the cover plate is rotatably connected to the first eye plate via the hinge arm;
[0007] When the third eye plate of the cover plate is connected to the second eye plate, the observation hole can be closed; when the third eye plate of the cover plate is separated from the second eye plate, the cover plate opens to the inside of the cargo hold to open the observation hole.
[0008] Furthermore, the hinge arm is a U-shaped structure, one end of the U-shaped opening is rotatably connected to the first eye plate, and the other end of the U-shaped opening is fixedly connected to the cover plate. When the cover plate rotates, the U-shaped opening of the hinge arm can bypass the cargo hold bulkhead of the observation hole.
[0009] Furthermore, it also includes an eye ring, which is fixedly mounted on the cover plate and is located on the side of the cover plate facing the inside of the protective cover.
[0010] Furthermore, an operating chain is installed on the eye ring, and the opened cover can be pulled back to the closed state by pulling the operating chain.
[0011] Furthermore, the first eye plate and the second eye plate are at least a pair, and the number of the corresponding hinge arms and third eye plates is the same as the number of the first eye plates and the second eye plates.
[0012] Furthermore, the first eye plate and the second eye plate are symmetrically distributed on the cargo hold bulkhead inside the protective cover.
[0013] Furthermore, the hinge arm and the first eye plate can be rotatably connected via a pin, a tongued latch or a bolt.
[0014] The advantages and positive effects of the utility model are:
[0015] The utility model is specially designed for cargo holds loaded with cargo on ships. When the cover is squeezed by the cargo in the cargo hold, it can be effectively closed, and personnel in the cargo hold ladder cannot push it, thereby preventing cargo from pouring in and endangering personnel safety as may be caused by the use of an inward-opening observation hole cover. In addition, daily maintenance of the hole cover can be easily completed by standing on the cargo hold ladder, without the need for additional platforms, ladders, etc. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that these drawings are designed for illustrative purposes only and are not intended to limit the scope of the present invention. In addition, unless otherwise specified, these drawings are intended only to conceptually illustrate the structures described herein and are not necessarily drawn to scale.
[0017] Figure 1 This is a front view of an outward-opening observation hole cover provided by an embodiment of the present invention, with the hinge on the inner side of the protective cover;
[0018] Figure 2 This is a top view of an outward-opening observation hole cover provided by an embodiment of the present invention, with the hinge located on the inner side of the protective cover;
[0019] Figure 3 This is a top view of the installation of an outward-opening observation hole cover with a hinge on the inner side of the protective cover provided by an embodiment of the utility model. DETAILED DESCRIPTION
[0020] First of all, it should be noted that the specific structure, features and advantages of the present invention will be specifically described below in an illustrative manner. However, all descriptions are for illustration only and should not be understood as limiting the present invention. In addition, any single technical feature described or implied in the embodiments mentioned herein, or any single technical feature displayed or implied in the drawings, can still be arbitrarily combined or deleted between these technical features (or their equivalents) to obtain more other embodiments of the present invention that may not be directly mentioned herein. In addition, in order to simplify the drawings, the same or similar technical features may be marked in only one place in the same drawing.
[0021] It should be noted that, unless there is any conflict, the embodiments and features in the embodiments of this application can be combined with each other.
[0022] like Figure 1-Figure 3 As shown, this embodiment provides an outward-opening observation hole cover with a hinge on the inner side of a protective cover, and an observation hole A is opened on the cargo hold bulkhead. The observation hole cover includes a cover plate 1, a hinge arm 2, a first eye plate 3, a second eye plate 4, and a third eye plate 5;
[0023] A first eye plate and a second eye plate are fixedly mounted on the cargo hold bulkhead inside the protective cover on both sides of the observation hole, respectively; a hinge arm and a third eye plate are fixedly mounted on both sides of the cover plate, respectively; the cover plate is located inside the cargo hold, and one side of the cover plate is rotatably connected to the first eye plate via the hinge arm;
[0024] When the third eye plate of the cover plate is connected to the second eye plate, the observation hole can be closed; when the third eye plate of the cover plate is separated from the second eye plate, the cover plate opens to the inside of the cargo hold to open the observation hole.
[0025] Specifically, such as Figure 2 As shown, the hinge arm is a U-shaped structure, one end of the U-shaped opening is rotatably connected to the first eye plate, and the other end of the U-shaped opening is fixedly connected to the cover plate. When the cover plate rotates, the U-shaped opening of the hinge arm can bypass the cargo hold bulkhead of the observation hole.
[0026] It also includes an eye ring 6, which is fixedly mounted on the cover plate and is located on the side of the cover plate facing the inside of the protective cover. It should be noted that an operating chain 9 is installed on the eye ring, and the operating chain is installed on the eye ring through a safety hook. By pulling the operating chain, the open cover plate can be pulled back to the closed state.
[0027] Of course, in order to make the cover of the observation hole more evenly stressed when closed or opened, it can be considered that the first eye plate and the second eye plate are at least a pair, and the number of the corresponding hinge arms and the third eye plate is consistent with the number of the first eye plate and the second eye plate; in this embodiment, if Figure 1 As shown, the first eye plate and the second eye plate are a pair and are symmetrically distributed on the cargo hold bulkhead inside the protective cover; the hinge arm and the first eye plate can be rotatably connected by a pin, a tongue pin or a bolt. In this embodiment, Figure 1 As shown, the hinge arm and the first eye plate are connected by bolts 7 and nuts 8, and the nuts 8 are spot-welded on the bolts 7, so that the hinge arm and the first eye plate can rotate; when the cover closes the observation hole, it is also possible to consider using bolts and nuts to connect the third eye plate to the second eye plate.
[0028] The present application is extremely convenient to maintain, and the cover can be easily retracted through the operating chain. The first eye plate, the second eye plate and the hinge arm are installed on the inner side of the protective cover, and the cover is driven to open and close through the hinge on the inner side of the observer. The cover can be opened at 90° (if a larger angle is required, it can be achieved by adjusting the hinge arm type). After closing, the cover fits well with the cargo hold bulkhead, which can effectively prevent blocks, particles and dust from entering. Depending on the use environment, the observation hole cover changes the hinge arm type to achieve a larger opening angle, and can also achieve a better sealing effect by adjusting the shaft accuracy. It has a wide range of possible applications.
[0029] This type of observation hole cover is specially designed for cargo holds on ships. When the cover is squeezed by the cargo in the cargo hold, it can be effectively closed. People in the cargo hold ladder cannot push it, preventing the cargo from rushing in and endangering the safety of people. Daily maintenance of the hole cover can be easily completed by standing on the cargo hold ladder (see Figure 3 ), no additional platforms, ladders, etc. are required.
[0030] The above embodiments provide a detailed description of the present invention. However, the contents described are merely preferred embodiments of the present invention and should not be considered as limiting the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention shall still fall within the scope of the patent application of the present invention.
Claims
1. An outward-opening observation hole cover hinged on the inner side of a protective cover, with an observation hole opened on the cargo hold bulkhead, characterized in that: The observation hole cover includes a cover plate, a hinge arm, a first eye plate, a second eye plate, and a third eye plate; A first eye plate and a second eye plate are fixedly mounted on the cargo hold bulkhead inside the protective cover on both sides of the observation hole, respectively; a hinge arm and a third eye plate are fixedly mounted on both sides of the cover plate, respectively; the cover plate is located inside the cargo hold, and one side of the cover plate is rotatably connected to the first eye plate via the hinge arm; When the third eye plate of the cover plate is connected to the second eye plate, the observation hole can be closed; when the third eye plate of the cover plate is separated from the second eye plate, the cover plate opens to the inside of the cargo hold to open the observation hole.
2. The outward-opening observation hole cover with a hinge on the inner side of the protective cover according to claim 1, characterized in that: The hinge arm is a U-shaped structure, one end of the U-shaped opening is rotatably connected to the first eye plate, and the other end of the U-shaped opening is fixedly connected to the cover plate. When the cover plate rotates, the U-shaped opening of the hinge arm can bypass the cargo hold bulkhead of the observation hole.
3. The outward-opening observation hole cover with a hinge on the inner side of the protective cover according to claim 1, characterized in that: It also includes an eye ring, which is fixedly mounted on the cover plate and is located on a side of the cover plate facing the interior of the protective cover.
4. The outward-opening observation hole cover with a hinge on the inner side of the protective cover according to claim 3, characterized in that: An operating chain is installed on the eye ring, and the opened cover plate can be pulled back to the closed state by pulling the operating chain.
5. The outward-opening observation hole cover with a hinge on the inner side of the protective cover according to claim 1, characterized in that: The first eye plate and the second eye plate are at least a pair, and the number of the corresponding hinge arms and third eye plates is consistent with the number of the first eye plates and the second eye plates.
6. The outward-opening observation hole cover with a hinge on the inner side of the protective cover according to claim 5, characterized in that: The first eye plate and the second eye plate are symmetrically distributed on the cargo hold bulkhead inside the protective cover.
7. The outward-opening observation hole cover with a hinge on the inner side of the protective cover according to claim 1, characterized in that: The hinge arm and the first eye plate can be rotatably connected via a pin, a tongued latch or a bolt.