Buffer device for civil air defense protective door

By designing buffer and limit components on the civil defense security door, the problems of door opening damage and lock cylinder damage have been solved, achieving hidden embedding and force buffering, thus improving service life and security.

CN223689518UActive Publication Date: 2025-12-19JIANGSU GUOWEI CIVIL AIR DEFENSE EQUIPMENT TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202423270381.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-12-19
Estimated Expiration
2034-12-30

AI Technical Summary

Technical Problem

Existing security doors are easily damaged when fully opened and take up a lot of space; external impacts can easily damage the lock cylinder.

Method used

A buffer device including a buffer component, a fitting component, and a limiting component is designed. The door is hidden and embedded through a hidden groove and a buffer hole. The buffer spring and rubber block are used to buffer the inertial force, and the limiting component reinforces the door lock to avoid excessive external force.

Benefits of technology

It improves space utilization and aesthetics, protects the door surface, extends service life, and prevents damage to the lock cylinder.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a buffering device for a civil defense protective door, which comprises a concrete wall, a hidden groove is arranged on the surface of the concrete wall, a buffering hole is arranged in the middle of the surface of the hidden groove, a buffering assembly is arranged in the buffering hole, and the inside of the concrete wall is hinged with the civil defense door through a hinge. A limiting assembly is arranged on the surface of the civil air defense door, a limiting piece is arranged at the bottom of the surface of the civil air defense door, and an attaching assembly is arranged in the middle of the surface of the civil air defense door. According to the buffering device for the civil air defense protective door, when the civil air defense door is opened, the civil air defense door is rotated into the hidden groove, so that the civil air defense door is hidden and embedded into the concrete wall, the space utilization rate and the attractiveness are improved, meanwhile, a bearing block and a rubber block are inserted into a buffering hole and are in lap joint with a buffering assembly, and the buffering effect is improved. And inertia force generated when the civil air defense door is opened is buffered, so that the surface of the civil air defense door is protected, and the service life of the civil air defense door is prolonged.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of civil air defense protective door buffer, specifically relates to a buffer device for civil air defense protective door. BACKGROUND

[0002] The buffer device for civil air defense protective door refers to reducing the impact force of the door during the opening of the civil air defense door, protecting the door while ensuring the smooth operation of the door, and prolonging the service life of the civil air defense door.

[0003] The civil air defense engineering protective door with buffering function disclosed in the publication No. CN213234793U, although the utility model discloses a support plate and a buffer plate, the buffer plate and the support plate have a gap, the elastic element is arranged in the groove, when the buffer plate is impacted, the elastic element is compressed, the elastic element converts part of kinetic energy into elastic potential energy, thereby relieving part of the impact force, so that the protective door plate has good buffering effect on the impact force; the anti-drop plate is fixedly connected on the two sides of the groove opening end, the anti-drop plate supports the buffer plate, so that the buffer plate is not easy to separate from the support plate; a plurality of anti-slip blocks are fixedly connected on the opposite side walls of the groove, the protruding block of the buffer plate is provided with an anti-slip groove for inserting the anti-slip block, so that the buffer plate is limited by the anti-slip block and can only move towards the groove bottom or away from the groove bottom, so that when the buffer plate is impacted, the buffer plate is not easy to displace in the vertical direction, so that the buffer plate is not easy to shake, thereby the buffer plate is not easy to shake.

[0004] However, the buffer device for civil air defense protective door has the following disadvantages: 1. It is not convenient to buffer the surface of the protective door when the protective door is fully opened, which can easily cause impact on the surface of the protective door and damage the appearance, and it is not convenient to open the protective door in a hidden manner, which can cause a large space when the protective door is opened; 2. When the civil air defense door is closed, the civil air defense valve lock is closed under stress, and when the civil air defense door is impacted by external force, the lock core of the civil air defense door is easily damaged, thereby affecting the opening and closing. UTILITY MODEL CONTENTS

[0005] The technical problems to be solved by the utility model are as follows: buffering and protecting the surface of the protective door when the protective door is opened, and reducing the impact force of the external force on the civil air defense valve lock.

[0006] The purpose of the utility model can be achieved by the following technical solutions:

[0007] The utility model provides a kind of buffer device for civil air defense door, including concrete wall, the surface of the concrete wall is equipped with hidden slot, the middle part of the surface of the hidden slot is equipped with buffer hole, the inside of the buffer hole is provided with buffer assembly, the inside of the concrete wall is hinged with civil air defense door by hinge, the surface of the civil air defense door is provided with limiting assembly, the bottom of the surface of the civil air defense door is provided with limiting sheet, the middle part of the surface of the civil air defense door is provided with fitting assembly, and the surface of the fitting assembly is adapted to be inserted in the inside of buffer hole, the buffer assembly includes buffer spring fixedly connected in the inside of hidden slot, the inside of the buffer spring is provided with damping telescopic rod;The limiting assembly includes sleeve fixedly connected on the surface of civil air defense door, the inside of the sleeve is slidably connected with insertion sleeve, the outer surface of the insertion sleeve is fixedly connected with spanner;The fitting assembly includes receiving block fixedly connected on the middle part of the surface of civil air defense door, and the one end of the receiving block is fixedly connected with rubber block.

[0008] As a further scheme of the utility model: the bottom of the insertion sleeve is provided with gasket, and the material of the gasket is rubber.

[0009] As a further scheme of the utility model: the number of the limiting assembly is four groups, and the four groups of limiting assembly are evenly distributed in a linear type on the surface of the civil air defense door.

[0010] As a further scheme of the utility model: the limiting sheet is assembled so that, after the sleeve is lifted to the appropriate position, the spanner is inserted into the inside of the limiting sheet for limiting and fixing.

[0011] As a further scheme of the utility model: the bottom of the concrete wall is provided with ground, the surface of the ground is provided with limiting groove and arc-shaped groove, and the top of the arc-shaped groove is arranged at the edge of the bottom of the civil air defense door, and the insertion sleeve is inserted into the inside of the limiting groove.

[0012] As a further scheme of the utility model: the inside of the arc-shaped groove is slidably connected with guide wheel, and the top of the guide wheel is fixedly connected to the bottom of the civil air defense door.

[0013] As a further scheme of the utility model: the surface of the civil air defense door is provided with valve lock, and the valve lock is assembled to be rotated to the appropriate position to open and close the civil air defense door, and the valve lock is assembled to the civil air defense door to lock the civil air defense door.

[0014] The utility model has the advantages that:

[0015] 1. The comprehensive setting of the buffer assembly and the fitting assembly, when the civil defense door is opened, rotates the civil defense door to the inside of the hidden groove, so that the civil defense door is hidden and embedded in the inside of the concrete wall, thereby improving the space utilization and the aesthetic appearance, and the receiving block and the rubber block are inserted into the buffer hole and lapped on the buffer assembly, and the inertia force generated when the civil defense door is opened is buffered, thereby protecting the surface of the civil defense door and improving the service life of the civil defense door.

[0016] 2. The setting of the limiting assembly, when the civil defense door is closed, rotates the wrench, so that the wrench is separated from the limiting piece, and then the insertion cylinder is inserted into the limiting groove on the ground, when the civil defense door is subjected to external force, the four insertion cylinders are synchronously stressed, the external thrust is reinforced, the civil defense door is prevented from being damaged due to excessive external force when being locked, and the service life of the civil defense door is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model will be further described below in combination with the drawings.

[0018] Figure 1 It is the overall structure schematic view of the utility model;

[0019] Figure 2 It is the buffer assembly and the fitting assembly structure schematic view of the utility model;

[0020] Figure 3 It is the civil defense door structure schematic view of the utility model;

[0021] Figure 4 It is the limiting assembly structure schematic view of the utility model.

[0022] In the drawing: 1, concrete wall; 2, hidden groove; 3, buffer hole; 4, buffer assembly; 401, buffer spring; 402, damping telescopic rod; 5, civil defense door; 6, limiting assembly; 601, sleeve; 602, insertion cylinder; 603, wrench; 7, limiting piece; 8, fitting assembly; 801, receiving block; 802, rubber block; 9, gasket; 10, ground; 11, limiting groove; 12, arc-shaped groove; 13, guide wheel; 14, valve lock. PREFERRED EMBODIMENT

[0023] The technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0024] For example, Figures 1-4As shown in the figure, a kind of buffer device for civil air defense door, including the concrete wall 1, the surface of the concrete wall 1 is provided with hidden groove 2, the middle part of the surface of hidden groove 2 is provided with buffer hole 3, the inside of buffer hole 3 is provided with buffer assembly 4, the inside of concrete wall 1 is hinged with civil air defense door 5 through hinge, the surface of civil air defense door 5 is provided with limiting assembly 6, the bottom of the surface of civil air defense door 5 is provided with limiting piece 7, the middle part of the surface of civil air defense door 5 is provided with fitting assembly 8, and the surface of fitting assembly 8 is adapted to be inserted into the inside of buffer hole 3, buffer assembly 4 includes buffer spring 401 fixedly connected to the inside of hidden groove 2, buffer spring 401 is provided with damping telescopic rod 402 in the inside;Limiting assembly 6 includes sleeve 601 fixedly connected to the surface of civil air defense door 5, sleeve 601 is slidably connected with plug 602 in the inside, the outer surface of plug 602 is fixedly connected with spanner 603;Fitting assembly 8 includes receiving block 801 fixedly connected to the middle part of the surface of civil air defense door 5, one end of receiving block 801 is fixedly connected with rubber block 802;

[0025] As Figure 4 shown, the bottom of plug 602 is provided with gasket 9, the material of gasket 9 is rubber, the setting of gasket 9 made of rubber material plays a role in buffering the bottom of plug 602;

[0026] As Figure 1 shown, the number of limiting assembly 6 is four, four limiting assembly 6 is evenly distributed on the surface of civil air defense door 5 in the form of a word, through the setting of limiting assembly 6, the stress balance in the inside of civil air defense door 5 lock is achieved, and the reinforcement of civil air defense door 5 when closing is achieved, to avoid the damage of civil air defense door 5 lock;

[0027] As Figure 1 and Figure 4 shown, limiting piece 7 is assembled to be inserted into the inside of limiting piece 7 for limiting and fixing when sleeve 601 rises to the appropriate position, through the setting of limiting piece 7, the plug 602 is fixed by limiting the spanner 603;

[0028] As Figure 1 shown, the bottom of concrete wall 1 is provided with ground 10, the surface of ground 10 is provided with limiting groove 11 and arc groove 12, and the top of arc groove 12 is provided at the edge of the bottom of civil air defense door 5, plug 602 is inserted into the inside of limiting groove 11, through the setting of arc groove 12, the role of promoting the sliding of guide wheel 13 along the track is achieved;

[0029] As Figure 3 shown, the inside of arc groove 12 is slidably connected with guide wheel 13, the top of guide wheel 13 is fixedly connected to the bottom of civil air defense door 5, through the setting of guide wheel 13, the opening and closing of civil air defense door 5 is promoted, so that the opening and closing of civil air defense door 5 is easier;

[0030] AsFigure 1 and Figure 3 As shown in the figure, the surface of the civil defense door 5 is provided with a valve lock 14, which is assembled to rotate to a suitable position to open and close the civil defense door 5. Through the arrangement of the valve lock 14, the civil defense door 5 is locked.

[0031] The working principle of the utility model is: when the civil defense door 5 is opened, the civil defense door 5 is rotated to the inside of the hidden groove 2, so that the civil defense door 5 is hidden and embedded in the inside of the concrete wall 1, thereby improving the space utilization and the aesthetic appearance, and the receiving block 801 and the rubber block 802 are inserted into the buffer hole 3 and are lapped on the buffer assembly 4, and the inertia force generated when the civil defense door 5 is opened is buffered.

[0032] When the civil defense door 5 is closed, the wrench 603 is rotated, so that the wrench 603 is separated from the limiting sheet 7, and then the insertion cylinder 602 is inserted into the limiting groove 11 on the ground 10. When the civil defense door 5 is subjected to external force, the four groups of insertion cylinders 602 are synchronously stressed, so that the external thrust is reinforced, and the civil defense door 5 is prevented from being damaged due to excessive external force when being locked.

[0033] The above describes one embodiment of the utility model in detail, but the content described can only be the preferred embodiment of the utility model, and cannot be considered to limit the implementation range of the utility model. Any equivalent changes and improvements within the scope of the utility model application should still belong to the patent coverage range of the utility model.

Claims

1. A buffer device for a civil defense door comprising a concrete wall (1), characterized in that: The surface of the concrete wall (1) is provided with a hidden groove (2), the surface of the hidden groove (2) is provided with a buffer hole (3) in the middle, the buffer hole (3) is provided with a buffer assembly (4) inside, the inside of the concrete wall (1) is hinged to a civil air defense door (5) through a hinge, the surface of the civil air defense door (5) is provided with a limiting assembly (6), the bottom of the surface of the civil air defense door (5) is provided with a limiting piece (7), the middle of the surface of the civil air defense door (5) is provided with a fitting assembly (8), and the surface of the fitting assembly (8) is adapted to be inserted into the inside of the buffer hole (3), The buffer assembly (4) comprises a buffer spring (401) fixedly connected to the inside of the hidden groove (2), and a damping telescopic rod (402) is arranged in the inside of the buffer spring (401); The limiting assembly (6) comprises a sleeve (601) fixedly connected to the surface of the civil air defense door (5), the inside of the sleeve (601) is slidably connected with a plug (602), and the outer surface of the plug (602) is fixedly connected with a wrench (603); The fitting assembly (8) comprises a receiving block (801) fixedly connected to the middle of the surface of the civil air defense door (5), and a rubber block (802) is fixedly connected to one end of the receiving block (801).

2. The buffer device for a civil defense door according to claim 1, wherein The bottom of the plug (602) is provided with a gasket (9), and the material of the gasket (9) is rubber.

3. The buffer device for a civil defense door according to claim 1, wherein The number of the limiting assembly (6) is four, and the four limiting assemblies (6) are evenly distributed in a linear type on the surface of the civil air defense door (5).

4. The buffer device for a civil defense door according to claim 1, wherein The bottom of the concrete wall (1) is provided with a ground (10), the surface of the ground (10) is provided with a limiting groove (11) and an arc-shaped groove (12), and the top of the arc-shaped groove (12) is arranged at the edge of the bottom of the civil air defense door (5), and the plug (602) is inserted into the inside of the limiting groove (11).

5. The buffer device for a civil defense door according to claim 4, wherein The inside of the arc-shaped groove (12) is slidably connected with a guide wheel (13), and the top of the guide wheel (13) is fixedly connected to the bottom of the civil air defense door (5).

6. The buffer device for a civil defense door according to claim 1, wherein The surface of the civil air defense door (5) is provided with a valve lock (14).

Citation Information

Patent Citations

  • Protective door with buffering function for civil air defense engineering

    CN213234793U