Novel fire exit door with smoke alarm

Abstract

The novel fire exit door with the smoke alarm comprises a door frame, the left end of the door frame is movably connected with a fire exit door body through hinges, the upper end of the left side of the fire exit door body is fixedly connected with a fixed check block, and the upper end of the front surface of the door frame is fixedly provided with a smoke alarm body. A cavity is formed in the upper end of the door frame, and the middle end of the cavity is movably connected with a rotating shaft through a bearing. According to the utility model, through the arrangement of the smoke alarm body, effective smoke detection alarm can be carried out when a fire disaster occurs, so that personnel can find the fire disaster in time and carry out corresponding safety treatment, and through the arrangement of the fixed stop block, the L-shaped guide rod, the spiral guide groove, the rotating cylinder, the rotating shaft, the cavity, the L-shaped fixed rod and the brush plate, the fire disaster can be effectively detected and alarmed. And the brush plate can be driven to clean dust, soft flocks and spider webs attached to the surface of the smoke alarm body in the closing process of the fire exit door body and the door frame.

Description

Technical Field

[0001] The utility model relates to the technical field of fire doors, in particular to a new type of fire door with a smoke alarm. Background Technique

[0002] A fire door, also known as a fireproof door, refers to a door that can meet the requirements of fire resistance stability, integrity, and heat insulation within a certain period of time. It is a fire separation with a certain fire resistance installed in fire compartments, evacuation stairwells, vertical shafts, etc. In addition to the functions of an ordinary door, a fire door can also prevent the spread of fire and smoke, and can prevent the spread of fire for a certain period of time to ensure the evacuation of personnel.

[0003] For example, the Chinese utility model provides "a fireproof door", publication number: CN213627304U. This application includes a door body, a door frame, a receiving cavity, a fire extinguisher, a partition, a water outlet pipe, a sprinkler head, a door closer, a smoke alarm, and a protective plate; a door closer is installed between the door frame and the door body, a smoke alarm is installed on the upper part of the door body, a receiving cavity is arranged below the door body, a protective plate is hinged to the side of the receiving cavity, a partition is installed in the middle of the receiving cavity, a fire extinguisher is placed in the lower layer of the receiving cavity, and a water outlet pipe is arranged in the upper layer of the receiving cavity. The water outlet pipe is connected to the sprinkler head. The advantages of the utility model are: by installing a fire extinguisher that can automatically extinguish fire in the receiving cavity and further installing a water outlet pipe, the fire can be effectively suppressed, and the safety of personnel escaping through the fire door to the fire escape can be guaranteed.

[0004] In the above technology, the smoke alarm of the fireproof door is used for effective smoke alarm during a fire. However, during long-term use, the detection port on the surface of the smoke alarm is often covered by dust, lint, or spider webs, which affects the sensitivity of the subsequent smoke alarm and thus affects the overall safety of use. Content of the Utility Model

[0005] The purpose of the utility model is to provide a new type of fire door with a smoke alarm, which has the advantages of being able to conduct effective smoke alarm and being able to clean the surface of the smoke alarm during the process of personnel opening and closing the fire door, effectively ensuring the long-term use sensitivity of the smoke alarm.

[0006] To achieve the above object, the present utility model provides the following technical solutions: a new type of fire door with a smoke alarm, including a door frame. The left end of the door frame is movably connected to a fire door main body through a hinge. At the upper end of the left side of the fire door main body, a fixed block is fixedly connected. At the upper end of the front surface of the door frame, a smoke alarm body is fixedly installed. A cavity is opened at the upper end of the door frame. The middle end of the cavity is movably connected to a rotating shaft through a bearing. L-shaped fixing rods are fixedly connected to the periphery of the rotating shaft. A brush plate is fixedly connected to the surface of the L-shaped fixing rod. The surface of the brush plate is movably connected to the surface of the smoke alarm body. A rotating cylinder is fixedly connected to the back of the rotating shaft. A spiral guide groove is opened on the surface of the rotating cylinder. An L-shaped guide rod is movably connected between the surface of the spiral guide groove and the surface of the door frame.

[0007] As a preferred solution, a sliding rod is fixedly connected to the lower end of the cavity. The surface of the L-shaped guide rod is movably connected to the surface of the sliding rod.

[0008] As a preferred solution, a stabilizing shaft is fixedly connected to the back of the rotating cylinder. The back of the stabilizing shaft is movably connected to the surface of the cavity through a bearing.

[0009] As a preferred solution, accommodation holes are opened at the upper end of the front surface of the door frame. The number of the accommodation holes is four. The surface of the L-shaped fixing rod is movably connected to the surface of the accommodation holes.

[0010] As a preferred solution, a door closer is fixedly installed at the upper end of the left side of the fire door main body and behind the fixed block. The back of the door closer is fixedly installed at the upper end of the front surface of the door frame.

[0011] As a preferred solution, a centrifugal glass wool board is fixedly connected to the inner cavity of the fire door main body. A silica aluminum fiber board is fixedly connected between the inner cavity of the fire door main body and the left side of the centrifugal glass wool board.

[0012] As a preferred solution, a torsion spring is fixedly connected to the middle end of the rotating shaft. The left side of the torsion spring is fixedly connected to the left side of the cavity.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. The utility model, through the setting of the smoke alarm body, can effectively detect and alarm smoke in case of a fire, so as to facilitate people to discover in time and make corresponding safety treatments. At the same time, through the setting of the fixed block, L-shaped guide rod, spiral guide groove, rotating cylinder, rotating shaft, cavity, L-shaped fixing rod and brush plate, the brush plate can be driven to clean the dust, lint and spider webs attached to the surface of the smoke alarm body during the closing process between the main body of the fire door and the door frame, effectively avoiding the detection port of the smoke alarm body being covered by dust, lint and spider webs, which affects the sensitivity of subsequent smoke detection and alarm, and improving the overall safety of use.

[0015] 2. Through the setting of the sliding rod, the purpose of supporting and guiding the L-shaped guide rod is achieved, avoiding the L-shaped guide rod from tilting during movement. Through the setting of the stabilizing shaft, the purpose of stably supporting the back of the rotating cylinder is achieved, avoiding the rotating cylinder from tilting during the process of rotating and receiving force. Through the setting of the accommodating hole, the L-shaped fixing rod can be effectively accommodated. Through the setting of the centrifugal glass wool board and the aluminum silicate fiber board, a double-layer heat insulation effect is formed inside the main body of the fire door, effectively improving the heat insulation performance inside the main body of the fire door. Through the setting of the torsion spring, a force can be applied to the rotating shaft during the rotation of the rotating shaft, so that after the subsequent separation between the fixed block and the L-shaped guide rod, the rotating shaft can be driven to rotate and reset. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional view of the utility model;

[0017] Figure 2 is the utility model Figure 1 partial enlarged view at A in;

[0018] Figure 3 is a schematic diagram of the partial cross-sectional structure on the right side of the door frame of the utility model;

[0019] Figure 4 is a schematic diagram of the structure on the right side of the rotating cylinder of the utility model;

[0020] Figure 5 is a schematic diagram of the partial cross-sectional structure on the right side of the main body of the fire door of the utility model.

[0021] In the figure: 1. Main body of the fire door; 2. Fixed block; 3. Door closer; 4. Door frame; 5. Accommodating hole; 6. L-shaped fixing rod; 7. L-shaped guide rod; 8. Brush plate; 9. Smoke alarm body; 10. Cavity; 11. Sliding rod; 12. Rotating cylinder; 13. Stabilizing shaft; 14. Torsion spring; 15. Rotating shaft; 16. Spiral guide groove; 17. Centrifugal glass wool board; 18. Aluminum silicate fiber board. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] Secondly, the so-called "one embodiment" or "embodiment" herein refers to specific features, structures or characteristics that can be included in at least one implementation manner of the present utility model. The "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it an independent or selectively mutually exclusive embodiment with other embodiments.

[0024] Embodiment 1:

[0025] Please refer to Figures 1 - 4 As shown, the present utility model provides a new type of fire door with a smoke alarm, including a door frame 4. The left end of the door frame 4 is movably connected to a fire door main body 1 through a hinge. The upper end of the left side of the fire door main body 1 is fixedly connected to a fixed stop block 2. The upper end of the front surface of the door frame 4 is fixedly installed with a smoke alarm body 9. A cavity 10 is opened at the upper end of the door frame 4. The middle end of the cavity 10 is movably connected to a rotating shaft 15 through a bearing. L-shaped fixing rods 6 are fixedly connected to the periphery of the rotating shaft 15. A brush plate 8 is fixedly connected to the surface of the L-shaped fixing rod 6. The surface of the brush plate 8 is movably connected to the surface of the smoke alarm body 9. A rotating cylinder 12 is fixedly connected to the back surface of the rotating shaft 15. A spiral guide groove 16 is opened on the surface of the rotating cylinder 12. An L-shaped guide rod 7 is movably connected between the surface of the spiral guide groove 16 and the surface of the door frame 4.

[0026] In this technical solution, through the setting of the smoke alarm body 9, effective smoke detection and alarm can be carried out in case of a fire, so that personnel can discover and make corresponding safety treatments in time. At the same time, through the settings of the fixed stop block 2, L-shaped guide rod 7, spiral guide groove 16, rotating cylinder 12, rotating shaft 15, cavity 10, L-shaped fixing rod 6 and brush plate 8, the brush plate 8 can be driven to clean the dust, lint and spider webs attached to the surface of the smoke alarm body 9 during the closing process between the fire door main body 1 and the door frame 4. Then, it effectively avoids the detection port of the smoke alarm body 9 from being covered by dust, lint and spider webs, which affects the sensitivity of subsequent smoke detection and alarm, and improves the overall safety of use.

[0027] Embodiment 2:

[0028] On the basis of Embodiment 1, the present utility model is as Figures 1 - 5As shown in the figure, it is disclosed that a sliding rod 11 is fixedly connected to the lower end of the cavity 10. The surface of the L-shaped guide rod 7 is movably connected to the surface of the sliding rod 11. A stabilizing shaft 13 is fixedly connected to the back of the rotating cylinder 12. The back of the stabilizing shaft 13 is movably connected to the surface of the cavity 10 through a bearing. An accommodating hole 5 is opened at the upper end of the front surface of the door frame 4. The number of the accommodating holes 5 is four. The surface of the L-shaped fixing rod 6 is movably connected to the surface of the accommodating hole 5. A door closer 3 is fixedly installed at the upper end of the left side of the fire door main body 1 and behind the fixed stop block 2. The back of the door closer 3 is fixedly installed at the upper end of the front surface of the door frame 4. A centrifugal glass wool board 17 is fixedly connected to the inner cavity of the fire door main body 1. A silica aluminum fiber board 18 is fixedly connected between the inner cavity of the fire door main body 1 and the left side of the centrifugal glass wool board 17. A torsion spring 14 is fixedly connected to the middle end of the rotating shaft 15. The left side of the torsion spring 14 is fixedly connected to the left side of the cavity 10.

[0029] In this technical solution, through the setting of the sliding rod 11, the purpose of supporting and guiding the L-shaped guide rod 7 is achieved, avoiding the inclination of the L-shaped guide rod 7 during the movement process. Through the setting of the stabilizing shaft 13, the purpose of stably supporting the back of the rotating cylinder 12 is achieved, avoiding the inclination of the rotating cylinder 12 during the rotation and force-bearing process. Through the setting of the accommodating hole 5, the L-shaped fixing rod 6 can be effectively accommodated. Through the setting of the centrifugal glass wool board 17 and the silica aluminum fiber board 18, a double-layer heat insulation effect is formed inside the fire door main body 1, effectively improving the heat insulation performance inside the fire door main body 1. Through the setting of the torsion spring 14, a force can be applied to the rotating shaft 15 during the rotation of the rotating shaft 15, so that after the subsequent separation between the fixed stop block 2 and the L-shaped guide rod 7, the rotating shaft 15 can be driven to rotate and reset.

[0030] The working principle of the present utility model is: through the setting of the smoke alarm body 9, effective smoke detection and alarm can be carried out during a fire, so that personnel can timely discover and make corresponding safety treatments. At the same time, during the regular maintenance and inspection of fire-fighting facilities by personnel, the opening and closing conditions between the fire door main body 1 and the door frame 4 are often observed. And when personnel push the fire door main body 1 to rotate and close, the fixed stop block 2 can be driven to move. Under the action of the movement of the fixed stop block 2, it can contact the surface of the L-shaped guide rod 7 and push the L-shaped guide rod 7 to move. While the L-shaped guide rod 7 is moving, it can push the rotating cylinder 12 and the rotating shaft 15 to rotate along the surface of the cavity 10 through the spiral guide groove 16. The rotation of the rotating shaft 15 can drive the L-shaped fixing rod 6 and the brush board 8 to rotate, and the brush board 8 can clean the dust, lint and spider webs attached to the surface of the smoke alarm body 9 under the action of rotation. Then, it effectively avoids the detection port of the smoke alarm body 9 being covered by dust, lint and spider webs, which affects the subsequent smoke detection and alarm sensitivity, and improves the overall safety of use.

[0031] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible without materially departing from the novel teachings and advantages of the subject matter described in this application (e.g., changes in the dimensions, scales, structures, shapes and proportions of various elements, as well as parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, colors, orientations, etc.). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature, number or position of discrete elements may be altered or changed. Accordingly, all such modifications are intended to be included within the scope of the present utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any clause of "means-plus-function" is intended to cover the structures that perform the recited function herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present utility model. Therefore, the present utility model is not limited to a particular embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0032] In addition, in order to provide a concise description of the exemplary embodiments, not all features of the actual embodiments may be described (i.e., those features that are not relevant to the currently contemplated best mode of carrying out the present utility model or those features that are not relevant to the implementation of the present utility model).

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit the protection scope of the present utility model. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model may be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present utility model.

Claims

1. A novel fire door with a smoke alarm, comprising a door frame (4), characterized in that: The left end of the door frame (4) is movably connected to a fire door body (1) through a hinge, the upper end of the left side of the fire door body (1) is fixedly connected to a fixed stopper (2), the upper end of the front surface of the door frame (4) is fixedly mounted with a smoke alarm body (9), the upper end of the door frame (4) is provided with a cavity (10), the middle end of the cavity (10) is movably connected to a rotating shaft (15) through a bearing, the rotating shaft (15) is fixedly connected to an L-shaped fixed rod (6) on all sides, the surface of the L-shaped fixed rod (6) is fixedly connected to a brush plate (8), the surface of the brush plate (8) is movably connected to the surface of the smoke alarm body (9), the back of the rotating shaft (15) is fixedly connected to a rotating drum (12), the surface of the rotating drum (12) is provided with a spiral guide groove (16), and an L-shaped guide rod (7) is movably connected between the surface of the spiral guide groove (16) and the surface of the door frame (4).

2. A new type of fire door with a smoke alarm according to claim 1, characterized in that: The lower end of the cavity (10) is fixedly connected to a sliding rod (11), and the surface of the L-shaped guide rod (7) is movably connected to the surface of the sliding rod (11).

3. The new fire door with smoke alarm according to claim 1 is characterized by: The back side of the rotating drum (12) is fixedly connected to a stabilizing shaft (13), and the back side of the stabilizing shaft (13) is movably connected to the surface of the cavity (10) via a bearing.

4. The new fire door with smoke alarm according to claim 1 is characterized by: The upper end of the front surface of the door frame (4) is provided with a receiving hole (5), the number of the receiving holes (5) is four, and the surface of the L-shaped fixing rod (6) is movably connected to the surface of the receiving hole (5).

5. The new fire door with smoke alarm according to claim 1 is characterized by: A door closer (3) is fixedly installed at the upper end of the left side of the fire door body (1) and located behind the fixed stopper (2), and the back side of the door closer (3) is fixedly installed at the upper end of the front surface of the door frame (4).

6. The new fire door with smoke alarm according to claim 1 is characterized by: A centrifugal glass wool board (17) is fixedly connected to the inner cavity of the fire door body (1), and an aluminum silicate fiber board (18) is fixedly connected between the inner cavity of the fire door body (1) and the left side of the centrifugal glass wool board (17).

7. The new fire door with smoke alarm according to claim 1 is characterized by: A torsion spring (14) is fixedly connected to the middle end of the rotating shaft (15), and the left side of the torsion spring (14) is fixedly connected to the left side of the cavity (10).

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