Normally-closed emergency door lock safety cover

Abstract

The utility model provides a normally-closed emergency door lock safety cover. The normally-closed emergency door lock safety cover comprises a cover body and a viscous material, a cavity capable of containing a normally-closed emergency door lock is formed in the cover body, an opening communicated with the cavity is formed in the bottom of the cover body, the cover body is made of materials easy to break, and the outer surface of the cover body extends outwards to form an outer edge part. The viscous material is used for adhering the cover body to the normally-closed emergency door, and the viscous material is arranged on the outer edge part. The utility model solves the problem that the traditional normally-closed emergency door cannot simultaneously meet the fire-fighting requirements and prevent students from randomly opening the normally-closed emergency door from the interior of the dormitory building and escaping from the dormitory building in daily life, so that the school supervision has loopholes. The utility model has the advantages of simple structure, low manufacturing cost, diversified use scenes and convenience for large-scale popularization.

Description

Technical Field

[0001] The utility model relates to the field of fire-fighting equipment, and more specifically, to a safety cover for a normally-closed evacuation door lock. Background Art

[0002] A normally-closed evacuation door is an important fire safety facility. Its main function is to prevent the spread of smoke and flames during a fire, providing a safe passage for personnel evacuation. Such doors are usually installed at key locations such as evacuation stairwells and elevator shaft entrances. They are characterized by being kept closed usually, requiring manual pushing to open, and being able to automatically close without resistance. The design of normally-closed evacuation doors aims to gain precious time for personnel evacuation by preventing the lateral spread of fire and smoke. During a fire, these doors can effectively isolate smoke and flames, ensuring the safety of the evacuation stairwells and thus safeguarding people's lives.

[0003] The correct use and maintenance of normally-closed evacuation doors are crucial for fire safety. Keeping the doors closed for a long time can maximize their fire prevention, smoke prevention, and heat insulation functions.

[0004] However, in schools, some students may leave the doors open for ventilation or convenience of travel. Such behavior may cause the rapid spread of smoke and flames during a fire, threatening the lives of students. Especially in the dormitory buildings of schools, since normally-closed evacuation doors cannot be locked, some students take advantage of this to escape from the dormitory buildings, making it difficult for schools to manage students on campus and prone to potential safety hazards.

[0005] Therefore, it is necessary to develop or design a fire safety device that can not only meet the fire requirements of normally-closed evacuation doors but also prevent the problem of students opening the normally-closed evacuation doors from the inside of the dormitory building and escaping during normal times, thus avoiding potential safety hazards. Content of the Utility Model

[0006] Based on this, in order to solve the problem that traditional normally-closed evacuation doors cannot meet the fire requirements and prevent students from casually opening the normally-closed evacuation doors from the inside of the dormitory building and escaping during normal times, thus avoiding potential safety hazards, the utility model provides a safety cover for a normally-closed evacuation door lock, and its specific technical solution is as follows:

[0007] A safety cover for a normally-closed evacuation door lock, comprising:

[0008] A cover body, a cavity for accommodating a normally-closed evacuation door lock is arranged inside the cover body, an opening communicating with the cavity is arranged at the bottom of the cover body, the material of the cover body is an easily breakable material, and an outer edge portion extends outward from the outer surface of the cover body;

[0009] An adhesive material for bonding the cover to the normally-closed emergency exit door, and the adhesive material is disposed on the outer edge portion.

[0010] The above-mentioned normally-closed emergency exit door lock safety cover is provided with a cover, which covers the normally-closed emergency exit door lock. At the same time, the cover is made of an easily breakable material. When an emergency occurs, the escapee can break or shatter the cover to access the normally-closed emergency exit door lock and open the door to escape. By providing an outer edge portion and disposing the adhesive material on the outer edge portion, the cover is adhered to the normally-closed emergency exit door through the adhesive material. Specifically, according to the specific usage scenario, the normally-closed emergency exit door lock safety cover is disposed on the inner side of the normally-closed emergency exit door. In this way, people can open the normally-closed emergency exit door from the outside of the house, and the door handle of the normally-closed emergency exit door lock does not interfere with the cover. And inside the house, since the cover isolates people from the door handle, people need to break the cover to contact the door handle. This normally-closed emergency exit door lock safety cover has a simple structure, low manufacturing cost, diverse usage scenarios and is convenient for large-scale popularization.

[0011] Further, the outer edge portion is provided at the edge of the cover.

[0012] Further, the outer contour of the cover is square.

[0013] Further, the number of the outer edge portions is two and they are respectively located on any two sides of the cover.

[0014] Further, the number of the outer edge portions is two and they are respectively located on the symmetric sides of the cover.

[0015] Further, the outer contour size of the cover is 350mm * 150mm * 70mm.

[0016] Further, the material of the cover is safety glass or polycarbonate board or polystyrene board.

[0017] Further, the material of the cover is a see-through material.

[0018] Further, the material of the cover is acrylic board.

[0019] Further, one or more grooves for accommodating finger parts are provided on the outer surface of the cover. Description of the Drawings

[0020] The present utility model can be further understood from the following description in conjunction with the drawings. The components in the drawings are not necessarily drawn to scale, but the emphasis is placed on showing the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.

[0021] Figure 1It is a schematic structural diagram of the usage state of the normally closed evacuation door lock safety cover according to an embodiment of the present utility model;

[0022] Figure 2 It is Figure 1 a partial structural diagram of A in;

[0023] Figure 3 It is a partial structural diagram of the usage state of the normally closed evacuation door lock safety cover according to an embodiment of the present utility model;

[0024] Figure 4 It is one of the schematic structural diagrams of the normally closed evacuation door lock safety cover according to an embodiment of the present utility model;

[0025] Figure 5 It is another schematic structural diagram of the normally closed evacuation door lock safety cover according to an embodiment of the present utility model;

[0026] Figure 6 It is the third schematic structural diagram of the normally closed evacuation door lock safety cover according to an embodiment of the present utility model;

[0027] Figure 7 It is the fourth schematic structural diagram of the normally closed evacuation door lock safety cover according to an embodiment of the present utility model.

[0028] Explanation of reference numerals:

[0029] 1. Cover body; 2. Adhesive material; 3. Cavity; 4. Opening; 5. Outer edge part; 6. Groove; 7. Reflective strip; 8. Normally closed evacuation door lock; 9. Normally closed evacuation door. Detailed implementation manners

[0030] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below in conjunction with its embodiments. It should be understood that the specific implementation manners described herein are only used to explain the present utility model and do not limit the protection scope of the present utility model.

[0031] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation manners.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this utility model belongs. The terms used in the specification of this utility model herein are for the purpose of describing specific embodiments only and are not intended to limit this utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0033] In this utility model, the "first" and "second" do not represent specific quantities and sequences, but are only used for name distinction.

[0034] As Figures 1-6 shown, a normally-closed evacuation door lock safety cover in an embodiment of this utility model includes a cover body 1 and an adhesive material 2; a cavity 3 for accommodating a normally-closed evacuation door lock 8 is provided inside the cover body 1, an opening 4 communicating with the cavity 3 is provided at the bottom of the cover body 1, the cover body 1 is made of a demolition material, and an outer edge portion 5 extends outward from the outer surface of the cover body 1; the adhesive material 2 is used to bond the cover body 1 to the normally-closed evacuation door 9, and the adhesive material 2 is arranged on the outer edge portion 5.

[0035] For the above-mentioned normally-closed evacuation door lock safety cover, by providing the cover body 1, the cover body 1 is disposed above the normally-closed evacuation door lock 8. At the same time, the cover body 1 is made of an easily-demolishable material. When an emergency occurs, the escapee can break or smash the cover body 1 to contact the normally-closed evacuation door lock 8 and open the door to escape. By providing the outer edge portion 5 and arranging the adhesive material 2 on the outer edge portion 5, the cover body 1 is adhered to the normally-closed evacuation door 9 through the adhesive material 2. Specifically, according to the specific use scenario, the normally-closed evacuation door lock 8 safety cover is arranged on the inner side of the normally-closed evacuation door 9. In this way, people can open the normally-closed evacuation door 9 from the outside of the house, and the door handle of the normally-closed evacuation door lock 8 does not interfere with the cover body 1. However, since the cover body 1 isolates people from the door handle inside the house, people need to break the cover body 1 to contact the door handle. This normally-closed evacuation door lock 8 safety cover has a simple structure, low manufacturing cost, diverse use scenarios and is convenient for large-scale popularization.

[0036] This normally-closed evacuation door lock safety cover is applicable to the normally-closed evacuation door 9 in a campus or campus dormitory. At the same time, the outer surface of the cover body 1 is marked with "Fire Fighting Equipment, Do Not Damage, Emergency, Smash to Escape". In this way, by marking on the outer surface of the cover body 1, students can be warned to avoid random damage.

[0037] At the same time, monitoring is also configured to monitor the situation around the normally-closed evacuation door lock 8 safety cover to achieve human and physical defenses.

[0038] This normally-closed evacuation door lock safety cover is also applicable to the normally-closed evacuation door 9 in other scenarios, such as shopping malls, factories, commercial residences, office buildings, etc.

[0039] In one embodiment, the material of the cover 1 is a see-through material. In this way, it is convenient for the escapee to quickly identify the position of the normally-closed evacuation door lock 8 and quickly find the door handle.

[0040] In one embodiment, the material of the cover 1 is an acrylic board. In this way, since the acrylic board is inexpensive and easy to break or shatter, at the same time, the transparent acrylic board can meet the needs of the escapee to quickly identify the position of the normally-closed evacuation door lock 8 and quickly find the door handle.

[0041] The acrylic board is prior art and will not be elaborated here.

[0042] In one embodiment, the outer edge part 5 is arranged at the edge of the cover 1. In this way, it can ensure the close contact between the cover 1 and the normally-closed evacuation door 9 and is not easy to fall off.

[0043] In one embodiment, the outer contour of the cover 1 is square.

[0044] In one embodiment, the number of the outer edge parts 5 is two and they are respectively located on any two sides of the cover 1.

[0045] As Figures 4-6 shown, in one embodiment, the number of the outer edge parts 5 is two and they are respectively located on the symmetric sides of the cover 1. Preferably, the two outer edge parts 5 are located on the upper end side and the lower end side of the cover 1.

[0046] As Figure 5 shown, the outer contour of the cover 1 is cuboid-shaped, and the outer contour dimensions of the cover 1 are length (L) * width (B) * height (H) = 350 mm * 150 mm * 70 mm, that is, L = 350 mm, B = 150 mm, and H = 70 mm.

[0047] It should be noted that the shape and size of the cover 1 can be adjusted according to requirements, and its cross-section includes but is not limited to square, circular, and oval.

[0048] In one embodiment, the material of the cover 1 is safety glass or polycarbonate board or polystyrene board. Specifically:

[0049] Safety glass: A specially treated glass designed to break into small pieces when impacted, reducing harm to the human body.

[0050] Polycarbonate board: Having high transparency and impact resistance.

[0051] Polystyrene board: A lightweight, foamed material with low compressive strength and is easy to break with hands or tools.

[0052] The above-mentioned safety glass, polycarbonate board, and polystyrene board are all prior art.

[0053] In one embodiment, the adhesive material 2 includes, but is not limited to, glue, double-sided tape or a suction cup. Glue, double-sided tape and suction cups are all prior arts and will not be elaborated here.

[0054] As Figure 7 shown, in one embodiment, the outer surface of the cover body 1 is provided with one or more grooves 6 that can accommodate finger parts. In this way, when an emergency occurs, it is convenient to find a force application point during demolition. For example, directly through the escapee grasping the groove 6 and exerting force towards the body side, so as to disassemble the cover body 1.

[0055] As Figure 7 shown, in one embodiment, the outer surface of the cover body 1 is provided with a reflective strip 7. In this way, in the case of dim light, the escapee can quickly find the position of the cover body 1 through a flashlight and carry out demolition.

[0056] In one embodiment, the normally-closed evacuation door lock safety cover further includes a pressure sensor and an alarm device. The pressure sensor is communicatively connected to the alarm device. The pressure sensor and the alarm device are both installed on the normally-closed evacuation door 9. The pressure sensor is located in the cavity 3 and abuts against the inner wall of the cover body 1. In this way, when an emergency occurs, the cover body 1 is demolished and the pressure sensor is triggered, so that the alarm device sounds an alarm. Moreover, by providing the pressure sensor, it is possible to prevent the cover body 1 from being deliberately damaged by people in a non-emergency state.

[0057] The above-mentioned pressure sensor and alarm device are both prior arts and will not be elaborated here.

[0058] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0059] The above-described embodiments only represent several implementation manners of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A normally closed evacuation door lock safety cover, characterized in that, Comprising: A cover body, within which there is a cavity for accommodating a normally closed emergency evacuation door lock, the bottom of the cover body is provided with an opening communicating with the cavity, the material of the cover body is an easily breakable material, and an outer edge portion extends outward from the outer surface of the cover body; An adhesive material for bonding the cover body to the normally closed emergency evacuation door, and the adhesive material is arranged on the outer edge portion.

2. The normally-closed evacuation door lock safety cover according to claim 1, wherein The outer edge portion is provided at the edge of the cover body.

3. The normally-closed evacuation door lock safety cover according to claim 1 or 2, characterized in that, The outer contour of the cover body is square-shaped.

4. The normally-closed evacuation door lock safety cover according to claim 3, characterized in that, The number of the outer edge portions is 2 and they are respectively located on any two sides of the cover body.

5. The normally-closed evacuation door lock safety cover according to claim 3, characterized in that, The number of the outer edge portions is 2 and they are respectively located on the symmetrical sides of the cover body.

6. The normally closed evacuation door lock safety cover according to claim 3, characterized in that, The outer contour dimensions of the cover body are 350mm * 150mm * 70mm.

7. The normally-closed evacuation door lock safety cover according to claim 1, characterized in that, The material of the cover body is safety glass or polycarbonate sheet or polystyrene sheet.

8. The normally closed evacuation door lock safety cover according to claim 1, characterized in that, The material of the cover body is a see-through material.

9. The normally-closed evacuation door lock safety cover according to claim 1 or 8, characterized in that, The material of the cover body is acrylic board.

10. The normally-closed evacuation door lock safety cover according to claim 1, characterized in that, One or more grooves for accommodating finger portions are provided on the outer surface of the cover body.

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