A fire door with smoke concentration detection function
By designing components such as detection boxes, fans and smoke pipes in the fire door, the problem of external gas flow affecting smoke detection is solved, and the accuracy of smoke concentration detection is achieved.
Patent Information
- Application Number
- CN202421454624.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-25
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-06-25
AI Technical Summary
When the existing fire doors are flowing external gas, the smoke around the smoke detection sensor decreases, affecting the smoke detection effect.
A fire door was designed, including a detection box, fan, smoke pipe, motor, threaded rod, mobile plate, push rod, through groove and sealed plate. It smoke is pumped through the fan and transported to the detection box to ensure that the smoke concentration is consistent with the outside and achieve accurate detection.
Through the cooperation of the fan and the smoke pipe, the smoke concentration inside the detection box is consistent with the outside, and the detection accuracy of the smoke detection sensor is improved.
Smart Images
Figure CN222716783U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fire doors, in particular to a fire door with a smoke concentration detection function. Background Art
[0002] Fire doors can block fire and the smoke, toxic gas, heat and radiation brought by the fire for a certain period of time to protect our lives. Fire doors are usually divided into Class A doors and Class B doors according to their fire prevention capabilities. Fire doors can also be classified according to other standards, such as wooden fire doors, steel fire doors, etc.
[0003] When currently in use, fire doors are usually equipped with smoke detection sensors to detect smoke concentration. However, when gas flows outside the fire door, the smoke will flow with the gas, which may reduce the smoke around the smoke detection sensor, thereby affecting the effect of smoke detection. For this reason, we propose a fire door with smoke concentration detection function to solve the above problem. Utility Model Content
[0004] The purpose of the utility model is to provide a fire door with a smoke concentration detection function to solve the problems raised in the above background technology.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A fire door with a smoke concentration detection function comprises a door body, a detection box is fixedly connected to the front of the door body, two mounting tubes are fixedly connected to the front of the door body, a fan is installed on the inner wall of each mounting tube, and a side surface of the two mounting tubes close to each other is connected to the outer surface of the detection box with a smoke conveying pipe, a smoke detection sensor is installed on the inner wall of the detection box, a through groove is provided on the front of the detection box, a motor is installed on the inner wall of the detection box, a threaded rod is fixedly connected to the output end of the motor, a moving plate is threadedly connected to the outer surface of the threaded rod, a push rod is fixedly connected to the front of the moving plate, a sealing plate is fixedly connected to the front end of the push rod, and the outer surface of the sealing plate is slidably connected to the inner wall of the through groove.
[0007] In a further embodiment, a sealing cover is fixedly connected to the front of the sealing plate, an annular groove is provided on the front of the detection box, an annular frame is slidably connected to the inner wall of the annular groove, and the front of the annular frame is connected to the back of the sealing cover.
[0008] In a further embodiment, two stabilizing grooves are provided on the inner wall of the detection box, and a stabilizing plate is slidably connected to the inner wall of each stabilizing groove, and the side surfaces of the two stabilizing plates close to each other are respectively connected to the left and right side surfaces of the movable plate.
[0009] In a further embodiment, protective covers are installed on the sides of the two installation tubes that are away from each other.
[0010] In a further embodiment, the front end of the threaded rod passes through the movable plate and is rotatably connected to the inner wall of the detection box.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] The device cooperates with the fan, smoke conveying pipe, detection box, motor, threaded rod, movable plate, push rod, through slot, closed plate and smoke detection sensor. When the motor is working, the closed plate and the through slot can be separated. When the fan is working, the smoke can be sucked into the detection box. At the same time, the smoke can flow outward from the through slot, ensuring that the smoke concentration inside the detection box is consistent with that outside. The smoke detection sensor can then accurately detect the smoke concentration. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of a fire door with smoke concentration detection function.
[0014] Figure 2 It is a schematic diagram of the three-dimensional structure of a side section view of a detection box for a fire door with a smoke concentration detection function.
[0015] Figure 3 It is a three-dimensional structural schematic diagram of the side view of the installation tube of the fire door with smoke concentration detection function.
[0016] In the figure: 1. door body; 2. detection box; 3. smoke conveying pipe; 4. installation tube; 5. protective cover; 6. smoke detection sensor; 7. push rod; 8. stabilizing plate; 9. motor; 10. moving plate; 12. stabilizing groove; 13. threaded rod; 14. sealing cover; 15. sealing plate; 16. through groove; 17. annular frame; 18. annular groove; 19. fan. DETAILED DESCRIPTION
[0017] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.
[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0019] See also Figure 1-3 In the utility model, a fire door with a smoke concentration detection function comprises a door body 1, a detection box 2 is fixedly connected to the front of the door body 1, two mounting tubes 4 are fixedly connected to the front of the door body 1, a fan 19 is installed on the inner wall of each mounting tube 4, a side surface of the two mounting tubes 4 close to each other is connected with the outer surface of the detection box 2 by a smoke conveying pipe 3, a smoke detection sensor 6 is installed on the inner wall of the detection box 2, a through groove 16 is opened on the front of the detection box 2, a motor 9 is installed on the inner wall of the detection box 2, a threaded rod 13 is fixedly connected to the output end of the motor 9, a movable plate 10 is threadedly connected to the outer surface of the threaded rod 13, a push rod 7 is fixedly connected to the front of the movable plate 10, a sealing plate 15 is fixedly connected to the front end of the push rod 7, and the outer surface of the sealing plate 15 is slidably connected to the inner wall of the through groove 16.
[0020] A sealing cover 14 is fixedly connected to the front of the sealing plate 15, an annular groove 18 is provided on the front of the detection box 2, an annular frame 17 is slidably connected to the inner wall of the annular groove 18, and the front of the annular frame 17 is connected to the back of the sealing cover 14. By utilizing the connection between the annular frame 17 and the annular groove 18, the through groove 16 can be further sealed to prevent dust from entering the detection box 2 and covering the smoke detection sensor 6, affecting the detection effect.
[0021] Two stabilizing grooves 12 are provided on the inner wall of the detection box 2, and a stabilizing plate 8 is slidably connected to the inner wall of each stabilizing groove 12. The side surfaces of the two stabilizing plates 8 that are close to each other are respectively connected to the left and right side surfaces of the movable plate 10. By utilizing the connection between the stabilizing plate 8 and the stabilizing groove 12, the movable plate 10 can be stabilized to prevent the movable plate 10 from rotating.
[0022] The two mounting tubes 4 are both provided with protective covers 5 on their side faces away from each other. The protective covers 5 can prevent dust and debris from entering the mounting tubes 4 , thereby preventing the fan 19 from being damaged and preventing dust from entering the detection box 2 .
[0023] The front end of the threaded rod 13 penetrates the movable plate 10 and is rotatably connected to the inner wall of the detection box 2 . The threaded rod 13 and the detection box 2 are rotatably connected, which can form a supporting and stabilizing effect for the threaded rod 13 .
[0024] The working principle of the utility model is: when it is necessary to detect the smoke concentration, first start the motor 9 to work, the motor 9 will drive the threaded rod 13 to rotate on the movable plate 10, the movable plate 10 will move on the threaded rod 13, and at the same time the push rod 7 will push the sealing plate 15, the sealing plate 15 will be separated from the through groove 16, and the annular frame 17 will also be separated from the annular groove 18, then start the fan 19 to work, the fan 19 will suck the smoke, the smoke will enter the detection box 2 along the smoke conveying pipe 3, and at the same time the smoke entering the detection box 2 will flow to the outside from the through groove 16, ensuring that the smoke inside the detection box 2 is consistent with the outside, and then start the smoke detection sensor 6 to detect the smoke, ensuring the effect of smoke detection.
[0025] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
[0026] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A fire door with smoke concentration detection function, characterized in that: The invention comprises a door body (1), the front of the door body (1) being fixedly connected to a detection box (2), the front of the door body (1) being fixedly connected to two mounting tubes (4), the inner wall of each mounting tube (4) being installed with a fan (19), the side surfaces of the two mounting tubes (4) being close to each other being connected to the outer surface of the detection box (2) by a smoke conveying pipe (3), the inner wall of the detection box (2) being installed with a smoke detection sensor (6), the front of the detection box (2) being provided with a through groove (16), the inner wall of the detection box (2) being installed with a motor (9), the output end of the motor (9) being fixedly connected to a threaded rod (13), the outer surface of the threaded rod (13) being threadedly connected to a moving plate (10), the front of the moving plate (10) being fixedly connected to a push rod (7), the front end of the push rod (7) being fixedly connected to a sealing plate (15), the outer surface of the sealing plate (15) being slidably connected to the inner wall of the through groove (16).
2. The fire door with smoke concentration detection function according to claim 1, characterized in that: The front side of the sealing plate (15) is fixedly connected to a sealing cover (14), the front side of the detection box (2) is provided with an annular groove (18), the inner wall of the annular groove (18) is slidably connected to an annular frame (17), and the front side of the annular frame (17) is connected to the back side of the sealing cover (14).
3. The fire door with smoke concentration detection function according to claim 1, characterized in that: The inner wall of the detection box (2) is provided with two stabilizing grooves (12), the inner wall of each stabilizing groove (12) is slidably connected to a stabilizing plate (8), and the side surfaces of the two stabilizing plates (8) that are close to each other are respectively connected to the left and right side surfaces of the movable plate (10).
4. The fire door with smoke concentration detection function according to claim 1, characterized in that: A protective cover (5) is installed on the side surfaces of the two installation cylinders (4) that are away from each other.
5. The fire door with smoke concentration detection function according to claim 1, characterized in that: The front end of the threaded rod (13) passes through the movable plate (10) and is rotatably connected to the inner wall of the detection box (2).