Gravity type anti-back-locking device for small ice house of offshore platform

By installing anti-lock blocks and adding counterweights above the ice storage door, gravity is used to prevent the ice storage door from locking, thus solving the problem of easy locking of ice storage doors on offshore platforms and achieving safe and reliable door control.

CN223826605UActive Publication Date: 2026-01-23ZHANJIANG BRANCH OF CHINA NATIONAL OFFSHORE OIL CORP
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Patent Information

Application Number
CN202520280788.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-21
Publication Date
2026-01-23
Estimated Expiration
2035-02-21

AI Technical Summary

Technical Problem

The doors of small ice storage rooms on offshore platforms are easily locked from the inside, especially in windy marine environments. Failure of internal alarm devices can prevent people from escaping, posing a threat to their lives.

Method used

An anti-lock block is installed above the ice storage door and counterweighted to prevent the door from locking due to gravity. The anti-lock block is automatically opened and closed via a connecting rope and a fixed pulley.

Benefits of technology

It effectively prevents people from being locked inside the freezer, has a simple structure, low cost, ensures personnel safety, and can close the freezer door normally.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a gravity type anti-back-locking device for a small ice house of an offshore platform, which comprises an anti-locking block, a fixed pulley and a connecting rope, the anti-locking block is arranged above a door, one end of the anti-locking block is rotatably connected with the outer surface of the ice house, and the other end of the anti-locking block is provided with a counter weight; the fixed pulley is arranged above the anti-locking block; one end of the connecting rope is connected with the anti-locking block, and the other end of the connecting rope bypasses the fixed pulley from the upper part of the fixed pulley. The anti-locking block is additionally arranged above the door, the counter weight is additionally arranged at the non-fixed end of the anti-locking block, when the ice house door needs to be opened to take goods, the anti-locking block above the door falls down under the action of gravity, the opened ice house door can be blocked by the anti-locking block at the moment and cannot be closed, and therefore it is essentially avoided that people are locked in the ice house in a back mode; the ice house door can be smoothly closed only by pulling the connecting rope downwards and driving the anti-locking block to ascend through the connecting rope, and the gravity type anti-back-locking device is simple and exquisite in structure, low in design and manufacturing cost and capable of effectively guaranteeing the safety of personnel at the same time.
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Description

TECHNICAL FIELD

[0001] The utility model relates to ice storage anti-reverse locking technical field especially relates to a kind of offshore platform small ice storage gravity type anti-reverse locking device. BACKGROUND

[0002] Offshore platform small ice storage is the cooling facility using compressor unit and refrigeration fan, to create suitable humidity and low-temperature storage conditions for food and goods, at present, the cold storage door of offshore platform usually adopts double-opening door structure, i.e. the door on the left and right sides of cold storage respectively, one is frozen storage, one is refrigeration storage, and the whole is collectively referred to as ice storage, the outside of ice storage door is locked using locking pin and padlock.

[0003] Personnel in small ice storage is easily locked problem, more prominent in offshore oil platform, first, offshore platform is in windy sea environment all the year round, when personnel take goods or carry food, sea wind is easy to close door quickly, second, although ice storage is equipped with internal opening and alarm device and other safety measures, but in the process of actual operation, due to internal wet and cold insulation low failure, cannot be opened from inside and send alarm, personnel are locked when cannot escape from ice storage interior, cause life threat to trapped personnel. UTILITY MODEL CONTENTS

[0004] The purpose of the present application is to provide a kind of offshore platform small ice storage gravity type anti-reverse locking device, to solve the problems raised in the background art.

[0005] To achieve the above object, the present application provides the following technical scheme:

[0006] A kind of offshore platform small ice storage gravity type anti-reverse locking device, comprising:

[0007] Locking block, the locking block is located at the top of door, one end of the locking block is rotatably connected with the outer surface of ice storage, the other end of the locking block is provided with counterweight;

[0008] Fixed pulley, the fixed pulley is located above the locking block;

[0009] Connecting rope, one end of the connecting rope is connected with the locking block, the other end of the connecting rope is passed through the fixed pulley from above the fixed pulley.

[0010] Optionally, ice storage includes refrigeration storage door and frozen storage door arranged side by side, the top of refrigeration storage door and frozen storage door is respectively provided with the locking block, each locking block is correspondingly provided with one fixed pulley.

[0011] Optionally, the connecting rope corresponding to the locking block is respectively passed through the corresponding fixed pulley and then hangs down, the hanging end of two connecting ropes is connected with the upper end of the same pull rope.

[0012] Optionally, the lower end of the pull rope is provided with a pull ring.

[0013] Optionally, the right side of the cold storage door and the left side of the freezer door are respectively provided with door handles, the anti-locking blocks are correspondingly arranged above the door handles, and the adjacent ends of the two anti-locking blocks are respectively provided with the counterweights.

[0014] In conclusion, the technical effects and advantages of the present application are as follows: the anti-locking block is arranged above the door, and the counterweight is arranged at the non-fixed end of the anti-locking block, so that the gravity type function is improved; when the ice storage door needs to be opened to take goods, the anti-locking block above the door falls down under the action of gravity, so that the opened ice storage door is blocked by the anti-locking block and cannot be closed, and in essence, the personnel is prevented from being locked in the ice storage; when the personnel finishes taking the goods, the connecting rope is only pulled down to drive the anti-locking block to rise, so that the ice storage door can be smoothly closed; the gravity type anti-locking device is simple and exquisite in structure, low in design and manufacturing cost, and can effectively protect the safety of the personnel. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0016] Figure 1 FIG. 1 is a structural schematic view of a gravity type anti-locking device for a small ice storage of an offshore platform in a closed door state according to an embodiment of the present application;

[0017] Figure 2 FIG. 2 is a structural schematic view of the gravity type anti-locking device for the small ice storage of the offshore platform in an open door state according to the embodiment of the present application.

[0018] Wherein: 1, anti-locking block; 2, fixed pulley; 3, connecting rope; 4, counterweight; 5, cold storage door; 6, freezer door; 7, pull rope; 8, pull ring; 9, door handle. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0020] In addition, the technical features involved in the different embodiments of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0021] The embodiment provides a gravity type anti-relocking device for a small ice storage of an offshore platform, as shown in the drawings, Figure 1 and Figure 2 The anti-relocking block 1 is arranged above the door, one end of the anti-relocking block 1 is rotationally connected to the outer surface of the ice storage, the outer surface of the ice storage is provided with an anti-relocking block 1 support base in the embodiment, and one end of the anti-relocking block 1 is rotationally connected to the anti-relocking block 1 support base; the other end of the anti-relocking block 1 is provided with a counterweight 4; the fixed pulley 2 is arranged above the anti-relocking block 1; one end of the connecting rope 3 is connected to the anti-relocking block 1, and the other end of the connecting rope 3 passes over the fixed pulley 2 from above the fixed pulley 2.

[0022] The embodiment increases an anti-relocking block 1 above the door, and a counterweight 4 is arranged at the unfixed end of the anti-relocking block 1, so that the gravity type function is improved; when it is necessary to open the door of the ice storage to take goods, the anti-relocking block 1 above the door falls down under the action of gravity, at this time, the opened door of the ice storage is blocked by the anti-relocking block 1 and cannot be closed, and in essence, the personnel is prevented from being relocked in the ice storage; when the personnel finishes taking the goods, the connecting rope 3 only needs to be pulled down, the anti-relocking block 1 is driven to rise, and the door of the ice storage can be smoothly closed; the gravity type anti-relocking device is simple and exquisite in structure, low in design and manufacturing cost, and can effectively guarantee the safety of personnel.

[0023] Optionally, the ice storage comprises a refrigeration storage door 5 and a freezing storage door 6 arranged side by side, the refrigeration storage door 5 and the freezing storage door 6 are respectively provided with the anti-relocking block 1 above, and each anti-relocking block 1 is correspondingly provided with the fixed pulley 2; in the embodiment, the fixed pulley 2 is installed on the outer surface of the ice storage through a pulley support base, the fixed pulley 2 facilitates the connecting rope 3 to pull the anti-relocking block 1 to move upwards, and the closing of the refrigeration storage door 5 and the freezing storage door 6 is avoided.

[0024] Optionally, the connecting rope 3 corresponding to each anti-relocking block 1 is hung down after passing over the corresponding fixed pulley 2, and the hanging ends of the two connecting ropes 3 are connected to the upper end of the same pull rope 7. The connecting rope 3 has sufficient hanging length, so that the connection of the two connecting ropes 3 does not affect the movement of the two anti-relocking blocks 1.

[0025] Optionally, the lower end of the pull rope 7 is provided with a pull ring 8, and the pull ring 8 facilitates downward pulling operation.

[0026] Optionally, the right side of the refrigeration storage door 5 and the left side of the freezing storage door 6 are respectively provided with a door handle 9, the anti-relocking block 1 is correspondingly arranged above the door handle 9, and the adjacent ends of the two anti-relocking blocks 1 are respectively provided with the counterweight 4. The refrigeration storage door 5 and the freezing storage door 6 are commonly rotationally opened and closed with the ice storage.

[0027] In this embodiment, the fixed pulley 2 is a steel fixed pulley 2 that can be purchased on the market; the connecting rope 3 and the pull rope 7 are steel wires; the anti-lock block 1 can be a flat iron, and the counterweight 4 can be a heavy hammer; the anti-lock block 1 and the counterweight 4 provide downward gravity, so that the door automatically drops after being opened, preventing the door from closing; the anti-lock block 1 support base and the pulley support base are base welded by section steel.

[0028] The working process of this embodiment: when the refrigerator door 5 and / or the freezer door 6 is opened, the anti-lock block 1 above the door automatically drops and blocks the opened door, preventing the door from closing due to strong wind and other factors. When a person leaves the door, the pull ring 8 is pulled down, the anti-lock block 1 is reset through the connecting rope 3 and the fixed pulley 2, and the door can be normally closed. The length of the connecting rope 3 can be adjusted to cooperate with the adjustment of the anti-lock block 1, so as to achieve the best operating state of the anti-lock block 1. This embodiment improves the intrinsic safety of the equipment and effectively ensures the safety of personnel.

[0029] For ease of description, spatial relative terms such as "upper", "lower", "outer", "inner", etc. are used in the embodiments to describe the relationship of one element or feature to another element or feature shown in the drawings. It should be understood that, in addition to the orientation shown in the drawings, the spatial terms are intended to include different orientations of the device in use or operation. Therefore, the exemplary term "lower" can include both upper and lower orientations.

[0030] Moreover, relational terms such as "3" and "4" are only used to distinguish one component from another component with the same name, and do not necessarily require or imply any such actual relationship or order between the components.

[0031] Although the preferred embodiments of the utility model have been described above in conjunction with the drawings, the utility model is not limited to the specific embodiments described above, and the specific embodiments described above are only illustrative and not limiting. Those skilled in the art can make many specific changes under the inspiration of the utility model without departing from the purpose of the utility model and the scope of the protection of the utility model, and these are all within the protection scope of the utility model.

Claims

1. A gravity-type anti-lock device for a small ice storage facility on an offshore platform, characterized in that, include: An anti-locking block is provided above the door, with one end of the anti-locking block rotatably connected to the outer surface of the ice storage, and the other end of the anti-locking block being equipped with a counterweight; A fixed pulley is provided above the anti-locking block; A connecting rope, one end of which is connected to the anti-locking block, and the other end of which passes over the fixed pulley from above.

2. The gravity-type anti-lock device for a small ice storage facility on an offshore platform according to claim 1, characterized in that, The ice storage includes a refrigerated storage door and a frozen storage door arranged side by side. Each of the refrigerated storage door and the frozen storage door is provided with an anti-locking block above it, and each anti-locking block is provided with a fixed pulley.

3. The gravity-type anti-lock device for a small ice storage facility on an offshore platform according to claim 2, characterized in that, The connecting ropes corresponding to the anti-locking blocks are respectively wrapped around the corresponding fixed pulleys and then hang down, and the hanging ends of the two connecting ropes are connected to the upper end of the same pull rope.

4. The gravity-type anti-lock device for a small ice storage facility on an offshore platform according to claim 3, characterized in that, The lower end of the pull rope is equipped with a pull ring.

5. The gravity-type anti-lock device for a small ice storage room on an offshore platform according to claim 2, characterized in that, Door handles are provided on the right side of the refrigerated door and the left side of the freezer door. Anti-lock blocks are respectively provided above the door handles, and counterweights are provided at the adjacent ends of the two anti-lock blocks.