Obstacle removing structure below fireproof door

By using a clearing plate structure driven by photoelectric sensors and hydraulic cylinders, combined with a time relay, the automatic detection and removal of obstacles under fire doors is realized. This solves the problem of low efficiency of manual inspection in existing technologies, ensures the rapid closing of fire doors, and improves safety and intelligence.

CN223689592UActive Publication Date: 2025-12-19GUANGDONG YUEAN FIRE ELECTROMECHANICAL ENG CO LTD
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Patent Information

Application Number
CN202422581947.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-25
Publication Date
2025-12-19
Estimated Expiration
2034-10-25

AI Technical Summary

Technical Problem

Obstacles often accumulate under existing fire doors, affecting their normal closing or opening. Relying on manual inspection is inefficient and carries the risk of negligence, especially since they cannot be cleared in time without supervision, posing a safety hazard.

Method used

The system uses photoelectric sensors to detect obstacles and hydraulic cylinders to drive a clearing plate to automatically clear them. It also uses time relays to set time thresholds to intelligently determine the nature of obstacles and avoid false triggering.

Benefits of technology

It enables real-time detection and automatic removal of obstacles under fire doors, improving the intelligence level of fire doors, ensuring rapid closure, reducing the risk of accidental triggering, and enhancing safety and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of fire-fighting fireproof doors, in particular to a structure for removing obstacles below a fireproof door. A structure for removing obstacles below a fireproof door comprises the fireproof door, and the fireproof door comprises a door frame; the detection assembly is used for detecting obstacles below the fireproof door and comprises a photoelectric sensor, and the photoelectric sensor is arranged below the door frame; and the clearing assembly is electrically connected with the detection assembly. The barrier removing structure has the advantages that the barrier below the fireproof door can be detected in real time through the photoelectric sensor, omission caused by manual inspection is avoided, when the barrier is detected, the detection assembly transmits an electric signal indicating that the barrier is detected to the removing assembly, the hydraulic cylinder can be automatically started, the removing plate is driven to be turned outwards, and the barrier is removed. And the removing plate which is turned outwards can remove obstacles below the fireproof door, so that it is ensured that the fireproof door can be smoothly closed.
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Description

TECHNICAL FIELD

[0001] The utility model relates to fireproof door technical field, concretely is a fireproof door below obstacle removal structure. BACKGROUND

[0002] In the prior art, the fireproof door below may often accumulate sundries or obstacles, affecting the normal closing or opening of the fireproof door, and thus reducing the effectiveness of its fireproof function.

[0003] In the event of a fire, if the fireproof door cannot be closed quickly, it will affect the isolation effect of the fire area, leading to the spread of the fire, causing significant loss of personnel and property. In addition, the existing fireproof door system usually relies on manual inspection and cleaning of obstacles, which is inefficient and has the risk of negligence. In particular, in the case of unattended monitoring, obstacles cannot be cleaned in time, which poses a safety hazard. UTILITY MODEL CONTENT

[0004] The utility model provides a fireproof door below obstacle removal structure to solve the problem of the existing fireproof door system usually relying on manual inspection and cleaning of obstacles, which is inefficient and has the risk of negligence, especially in the case of unattended monitoring, obstacles cannot be cleaned in time, which poses a safety hazard.

[0005] The technical scheme of the utility model for solving the above technical problems is as follows: a fireproof door below obstacle removal structure, comprising:

[0006] The fireproof door comprises a door frame.

[0007] A detection assembly for detecting obstacles below the fireproof door, the detection assembly comprising a photoelectric sensor, wherein the photoelectric sensor is arranged below the door frame.

[0008] A removal assembly electrically connected to the detection assembly, for triggering the removal assembly to remove the obstacles below the fireproof door when the detection assembly detects the obstacles, the removal assembly comprising a mounting slot, a hydraulic cylinder, and a removal plate, the mounting slot being provided on the ground between the door frames, one end of the hydraulic cylinder being fixed in the mounting slot, the removal plate being rotatably connected to the side wall of the mounting slot on one side through a pivot, and the bottom of the other side of the removal plate being rotatably connected to the driving end of the hydraulic cylinder through a pivot.

[0009] The utility model has the advantages of:

[0010] 1) This obstacle removal structure is equipped with photoelectric sensors, which can detect obstacles under the fire door in real time, avoiding the omissions of manual inspection. When an obstacle is detected, the detection component transmits the electrical signal of the detected obstacle to the removal component. The hydraulic cylinder will start automatically and drive the removal plate to flip outward. The outward-flipping removal plate can remove the obstacle under the fire door, thereby ensuring that the fire door can be closed smoothly.

[0011] Based on the above technical solution, the present invention can be further improved as follows.

[0012] Furthermore, the detection component also includes a time relay, which is disposed on one side of the door frame and is used to time the time when an obstacle is detected below the fire door.

[0013] Furthermore, the time relay is electrically connected to both the photoelectric sensor and the hydraulic cylinder.

[0014] The beneficial effect of adopting the above-mentioned further solution is that by introducing a time relay into the detection component, the existence time of the detected obstacle can be monitored at regular intervals. This means that the hydraulic cylinder will only be triggered to clear the obstacle when the obstacle's existence time exceeds a set value (e.g., five seconds). This effectively avoids unnecessary clearing actions caused by objects that appear only briefly (such as pedestrians or temporarily placed items). Therefore, by setting a time threshold, the nature of the obstacle can be judged more intelligently, thereby reducing the risk of false triggering of the clearing mechanism and ensuring that only obstacles that truly affect the normal use of the fire door are cleared. This improves the intelligence level of the fire door, making it more flexible in dealing with daily situations and reducing the trouble caused to users by false triggering.

[0015] Furthermore, the photoelectric sensor includes a transmitter and a receiver, with the transmitter located on one side of the bottom of the door frame and the receiver located on the other side of the bottom of the door frame.

[0016] The beneficial effect of adopting the above-mentioned further solution is that the photoelectric sensor works by emitting light (usually infrared light) and detecting whether there is an object blocking the light. Since the transmitter and receiver are respectively set on both sides of the door frame, the light can cover the opening area of ​​the door frame, so that any object entering the area can be detected in a timely and accurate manner, which improves the sensitivity and accuracy of the elimination structure and reduces the possibility of false alarms and missed alarms.

[0017] Furthermore, the time relay is configured as an electrically operated time relay. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2The utility model discloses a front view sectional view.

[0020] Figure 3 The utility model discloses a side view sectional view.

[0021] In the drawing, the component list that each sign represents is as follows:

[0022] 10, fireproof door, 20, detection assembly, 210, photoelectric sensor, 211, transmitter, 212, receiver, 220, time relay, 30, clearing assembly, 301, installation groove, 302, hydraulic cylinder, 303, clearing plate. DETAILED DESCRIPTION

[0023] The principles and characteristics of the utility model are described below in combination with the drawings, and the examples are only used to explain the utility model and not used to limit the scope of the utility model.

[0024] In the prior art, the fireproof door below can be often stacked with sundries or obstacles, which affects the normal closing or opening of the fireproof door, and further reduces the effectiveness of its fireproof function.

[0025] When a fire occurs, if the fireproof door cannot be closed quickly, the isolation effect of the fire area will be affected, leading to the spread of the fire, causing significant loss of personnel and property, in addition, the existing fireproof door system usually relies on manual inspection and cleaning of obstacles, which is low in efficiency and has the risk of negligence, especially in the case of no monitoring, the obstacles cannot be cleaned in time, which has a security risk, for this, the utility model discloses a fireproof door below obstacle clearing structure to solve the above problems.

[0026] The utility model provides the following preferred embodiments

[0027] As Figure 1 , Figure 2 and Figure 3 Indicated, a fireproof door below obstacle clearing structure, comprising:

[0028] Fireproof door 10, the fireproof door 10 includes the door frame;

[0029] Detection assembly 20 for detecting the obstacle below the fireproof door 10, detection assembly 20 includes photoelectric sensor 210, wherein, photoelectric sensor 210 is located below the door frame;

[0030] The clearing assembly 30 is electrically connected with the detection assembly 20, and is used for triggering the clearing assembly 30 to clear the obstacle under the fireproof door 10 when the detection assembly 20 detects the obstacle. The clearing assembly 30 comprises a mounting groove 301, a hydraulic cylinder 302 and a clearing plate 303. The mounting groove 301 is arranged on the ground between the door frames. One end of the hydraulic cylinder 302 is fixed in the mounting groove 301. The clearing plate 303 is rotatably connected to the side wall of the mounting groove 301 through a rotating shaft at one side, and is rotatably connected to the driving end of the hydraulic cylinder 302 through a rotating shaft at the bottom of the other side.

[0031] The obstacle clearing structure can detect the obstacle under the fireproof door 10 in real time through the photoelectric sensor 210, avoids the omission of manual inspection, and transmits the electrical signal of the detected obstacle to the clearing assembly 30 when the obstacle is detected. The hydraulic cylinder 302 is automatically started and drives the clearing plate 303 to turn outward. The outwardly turned clearing plate 303 can remove the obstacle under the fireproof door 10, thereby ensuring that the fireproof door 10 can be smoothly closed.

[0032] As shown in Figure 1 , Figure 2 and Figure 3 , the detection assembly 20 further comprises a time relay 220 arranged on one side of the door frame and used for timing the time when the obstacle under the fireproof door 10 is detected. The time relay 220 is electrically connected with the photoelectric sensor 210 and the hydraulic cylinder 302 respectively.

[0033] The time relay 220 introduced in the detection assembly 20 can monitor the time when the detected obstacle exists, which means that the hydraulic cylinder 302 is triggered to start only when the time when the obstacle exists exceeds the set value (for example, five seconds), thereby clearing the obstacle. This can effectively avoid unnecessary clearing actions caused by temporarily appearing objects (such as passing pedestrians or temporarily placed objects), so that the nature of the obstacle can be more intelligently judged by setting a time threshold, thereby reducing the risk of false triggering of the clearing mechanism, ensuring that only obstacles that truly affect the normal use of the fireproof door 10 are cleared, thereby improving the intelligent level of the fireproof door 10, making it more flexible in dealing with daily situations, and reducing the user's trouble caused by false triggering.

[0034] As shown in Figure 1 , Figure 2 and Figure 3As shown, the photoelectric sensor 210 includes a transmitter 211 and a receiver 212, the transmitter 211 is arranged at one side of the bottom of the door frame, and the receiver 212 is arranged at the other side of the bottom of the door frame, the photoelectric sensor 210 works by emitting light (usually infrared light) and detecting whether an object blocks the light, since the transmitter 211 and the receiver 212 are arranged at both sides of the door frame, the light can cover the opening area of the door frame, so that any object entering the area can be detected in time and accurately, improving the sensitivity and accuracy of the cleaning structure, reducing the possibility of false positives and false negatives.

[0035] In this embodiment, as shown in Figure 1 、 Figure 2 and Figure 3 , the time relay 220 is set to the TH300 model electric time relay 220.

[0036] The specific working process of the utility model is as follows:

[0037] (1) detecting an obstacle

[0038] Firstly, the PR-M / F series photoelectric sensor 210 works by emitting light and detecting whether an object blocks the light, therefore, when there is an obstacle below the fireproof door 10, the obstacle blocks the optical axis transmission between the transmitter 211 and the receiver 212, and then it is determined that there is an obstacle below the fireproof door 10, at the same time, the photoelectric sensor 210 transmits the electrical signal of the detected obstacle to the time relay 220.

[0039] (2) determining the residence time of the obstacle

[0040] By introducing the time relay 220 in the detection assembly 20, the residence time of the detected obstacle can be timed monitored, when the residence time of the obstacle below the fireproof door 10 exceeds the set value (for example, five seconds), the electrical signal is transmitted to the hydraulic cylinder 302 to trigger the start of the hydraulic cylinder 302.

[0041] (3) removing the obstacle

[0042] The hydraulic cylinder 302 is started and drives the cleaning plate 303 to turn outward, and the outwardly turned cleaning plate 303 can remove the obstacle below the fireproof door 10, and then ensure that the fireproof door 10 can be closed smoothly.

[0043] The above only describes the preferred embodiments of the utility model and is not used to limit the utility model, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims

1. A fire door obstacle clearance structure below a fire door, characterized by, The application relates to a fireproof door, which comprises a door frame, a detection assembly for detecting obstacles under the fireproof door, wherein the detection assembly comprises a photoelectric sensor, and the photoelectric sensor is arranged under the door frame; a cleaning assembly which is electrically connected with the detection assembly and is used for triggering the cleaning assembly to clean the obstacles under the fireproof door when the detection assembly detects the obstacles, wherein the cleaning assembly comprises a mounting groove, a hydraulic cylinder and a cleaning plate, the mounting groove is arranged on the ground between the door frames, one end of the hydraulic cylinder is fixed in the mounting groove, one side of the cleaning plate is rotatably connected to the side wall of the mounting groove through a rotating shaft, and the bottom of the other side of the cleaning plate is rotatably connected to the driving end of the hydraulic cylinder through a rotating shaft. The detection assembly further comprises a time relay which is arranged on one side of the door frame and is used for timing the time when the obstacles under the fireproof door are detected. The time relay is electrically connected with the photoelectric sensor and the hydraulic cylinder respectively. The photoelectric sensor comprises an emitter and a receiver, the emitter is arranged on one side of the bottom of the door frame, and the receiver is arranged on the other side of the bottom of the door frame.

2. A fire door sweep according to claim 1, wherein, The time relay is an electric time relay.

3. A fire door lower obstacle clearing structure according to claim 2, wherein ​ 4. The fire door sweep assembly of claim 1, wherein, ​ 5. The fire door sweep assembly of claim 2, wherein, ​