Fire resisting shutter detection system
By detecting the position and applying pressure of the roller shutter using distance and force measurement modules, the problem of unstable parking of fireproof roller shutters during fires is solved, achieving effective fire isolation and evacuation protection.
Patent Information
- Application Number
- CN202422856685.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2034-11-22
AI Technical Summary
Existing fireproof roller shutters are difficult to stop stably in the middle position during a fire, affecting the evacuation effect.
The distance between the roller shutter and the ground is detected by a distance measuring module and a force measuring module, and a preset pressure is applied. The control module determines whether the roller shutter can descend to the appropriate position normally, including using a laser rangefinder and grippers to clamp the end of the roller shutter, and applying tension in conjunction with a winch.
Ensure that the roller shutter can stay stably in the middle position during a fire, blocking airborne particles and providing a safe evacuation route.
Smart Images

Figure CN223976833U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of fire protection testing, and more specifically, to a fireproof roller shutter testing system. Background Technology
[0002] A roller shutter is a type of fire door commonly used in fire prevention. In the event of a fire, the roller shutter drops a certain distance to block harmful particles suspended in the air between the doorways of two rooms, and the bottom of the roller shutter allows people to bend down and evacuate.
[0003] However, if the roller shutter is of poor quality, it may be difficult for the shutter to stop in the middle of the doorway, and it may fall directly to the ground in the event of a fire, affecting people's normal evacuation. Utility Model Content
[0004] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.
[0005] To address the technical problems mentioned in the background section above, some embodiments of this application provide a fireproof roller shutter detection system, including: a distance measuring module, a force measuring module, and a control module; wherein, the distance measuring module is used to detect the distance between the roller shutter and the bottom surface and generate a distance signal, the force measuring module is used to apply a downward preset pressure to the roller shutter and generate a pressure signal; and the control module is used to receive the distance signal detected by the distance measuring module and the pressure signal detected by the force measuring module.
[0006] Furthermore, the roller shutter has at least a first position and a second position relative to the ground; when the roller shutter is in the first position, the ranging module generates a first distance signal; when the roller shutter is in the second position, the ranging module generates a second distance signal; the roller shutter is used to move from the first position to the second position in the event of a fire; the control module is used to receive the first distance signal and the second distance signal.
[0007] Furthermore, the ranging module employs a laser rangefinder.
[0008] Furthermore, the laser rangefinder is provided with a connector for connecting the laser rangefinder to the lower end of the roller shutter.
[0009] Furthermore, the connector includes: a mounting frame, a first clamp, and a second clamp; the mounting frame has an abutment surface and a mounting chamber for mounting the laser rangefinder; the first clamp and the second clamp are used to clamp the roller blind when the abutment surface abuts against the end of the roller blind, so that the mounting frame is connected to the roller blind.
[0010] Furthermore, the laser rangefinder is detachably connected to the mounting chamber.
[0011] Furthermore, both the first clamp and the second clamp are connected to the mounting bracket via an elastic structure; the elastic structure is used to subject the first clamp and the second clamp to an elastic external force that causes them to rotate closer to each other.
[0012] Furthermore, the force measuring module includes: a winch and a gripper; the gripper is used to clamp the end of the roller shutter; the winch is connected to the gripper via a rope.
[0013] The beneficial effect of this application is that by using a distance measuring module to detect the distance the roller shutter descends, it can be determined whether the roller shutter can descend normally to the appropriate position, thereby better judging whether the roller shutter can play a role in blocking harmful particles suspended in the air and allowing people to bend down and evacuate in the event of a fire. Attached Figure Description
[0014] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.
[0015] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.
[0016] In the attached diagram:
[0017] Figure 1 This is an overall schematic diagram based on an embodiment of this application;
[0018] Figure 2 This is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the roller shutter and some surrounding parts;
[0019] Figure 3 yes Figure 2 Enlarged view of part A;
[0020] Figure 4 This is a structural schematic diagram as part of an embodiment, mainly showing the structure of the mounting bracket and some surrounding parts.
[0021] Figure label:
[0022] 1. Laser rangefinder; 2. Mounting bracket; 3. First clamp; 4. Second clamp; 5. Guide rail; 6. Slider; 7. Elastic structure; 8. Roller blind. Detailed Implementation
[0023] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.
[0024] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.
[0025] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.
[0026] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".
[0027] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.
[0028] Reference Figure 1-4 ,
[0029] A fireproof roller shutter 8 detection system includes: a distance measuring module, a force measuring module, and a control module; wherein, the distance measuring module is used to detect the distance between the roller shutter 8 and the bottom surface and generate a distance signal, the force measuring module is used to apply a downward preset pressure to the roller shutter 8 and generate a pressure signal; the control module is used to receive the distance signal detected by the distance measuring module and the pressure signal detected by the force measuring module.
[0030] In the event of a fire, the roller shutter 8 automatically descends to its central position, partially sealing off the space above to block suspended particles and prevent them from drifting to unburned areas, thus buying more escape time. A distance measuring module detects whether the roller shutter 8's automatic descent to the central position is functioning correctly and sends the distance signal to the control module. The control module calculates the actual distance to the ground based on this signal and checks if it meets regulations. If it does, the test is successful; otherwise, it fails. The control module is computer-based. A force measuring module applies downward pressure to the roller shutter 8, simulating whether a collision with the roller shutter 8 during an escape would cause it to fall directly to the ground, thus verifying its stable positioning in the central position. The control module receives the magnitude of the pressure applied to the roller shutter 8 by the pressure module.
[0031] Specifically, the roller shutter 8 has at least a first position and a second position relative to the ground. The first position is the position where the roller shutter 8 has not yet begun to descend, and the second position is the signal when the roller shutter 8 has descended to the middle position. When the roller shutter 8 is in the first position, the distance measuring module generates a first distance signal; when the roller shutter 8 is in the second position, the distance measuring module generates a second distance signal. The roller shutter 8 is used to move from the first position to the second position in the event of a fire. The control module is used to receive the first distance signal and the second distance signal. Based on the first distance signal and the second distance signal, it is determined whether the position of the roller shutter 8 after descent meets the requirements.
[0032] Specifically, the ranging module uses a laser rangefinder 1. A connector is provided on the laser rangefinder 1, which is used to connect the laser rangefinder 1 to the lower end of the roller blind 8.
[0033] Specifically, the connector includes: a mounting frame 2, a first clamp 3, and a second clamp 4; the mounting frame 2 forms an abutment surface and a mounting chamber for mounting the laser rangefinder 1; the first clamp 3 and the second clamp 4 are used to clamp the roller blind 8 when the abutment surface abuts against the end of the roller blind 8, so that the mounting frame 2 is connected to the roller blind 8. Both the first clamp 3 and the second clamp 4 are clamping blocks. The mounting frame 2 is provided with a guide rail 5 and a slider 6. The first clamp 3 and the second clamp 4 are respectively connected to two sliders 6. The mounting frame 2 is also provided with an elastic structure 7. Both the first clamp 3 and the second clamp 4 are connected to the mounting frame 2 through an elastic structure 7; the elastic structure 7 is used to subject the first clamp 3 and the second clamp 4 to an elastic external force that causes them to rotate closer together. The elastic structure 7 is a spring, which applies an external force to the first clamp 3 and the second clamp 4, causing them to clamp the end of the roller blind 8, thus realizing the installation of the rangefinder. The mounting bracket 2 is equipped with a housing, which is used to enclose part of the elastic element, part of the guide rail 5, and part of the slider 6.
[0034] Specifically, the laser rangefinder 1 is detachably connected to the mounting chamber.
[0035] Specifically, the force measuring module includes a winch and a gripper; the gripper is used to clamp the end of the roller blind 8; the winch is connected to the gripper via a rope. The winch is placed directly on the ground, and the gripper uses existing technology and is a self-locking gripper, such as pliers or the aforementioned first clamping part 3 and second clamping part 4. One end of the rope is wound around the winch, and the other end is connected to a tension scale, which is fixed to the gripper, thereby fixing the tension scale to the end of the roller blind 8. The tension scale can display the downward tension value applied by the rope to the roller blind 8.
[0036] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.
Claims
1. A fire shutter detection system characterised in that , comprising: a distance measuring module, a force measuring module and a control module; wherein the distance measuring module is configured to detect the distance between the roller shutter and the floor surface and generate a distance signal, and the force measuring module is configured to apply a downward pre-set pressure to the roller shutter and generate a pressure signal; the control module is configured to receive the distance signal detected by the distance measuring module and the pressure signal detected by the force measuring module; the roller shutter has at least a first position and a second position; when the roller shutter is in the first position, the distance measuring module generates a first distance signal; when the roller shutter is in the second position, the distance measuring module generates a second distance signal; the roller shutter is configured to move from the first position to the second position when a fire occurs; the control module is configured to receive the first distance signal and the second distance signal.
2. The fireproof roller shutter detection system according to claim 1, wherein: the distance measuring module is a laser distance meter.
3. The fireproof roller shutter detection system according to claim 2, wherein: a connecting member is arranged on the laser distance meter, and the connecting member is configured to connect the laser distance meter with the lower end of the roller shutter.
4. The fireproof roller shutter detection system according to claim 3, wherein: the connecting member comprises a mounting bracket, a first clamping portion and a second clamping portion; the mounting bracket is provided with an abutting surface and a mounting cavity for mounting the laser distance meter; the first clamping portion and the second clamping portion are configured to clamp the roller shutter when the abutting surface abuts against the end portion of the roller shutter, so as to connect the mounting bracket with the roller shutter.
5. The fireproof roller shutter detection system according to claim 4, wherein: the laser distance meter is detachably connected with the mounting cavity.
6. The fireproof roller shutter detection system according to claim 5, wherein: the first clamping portion and the second clamping portion are both connected with the mounting bracket through an elastic structure; the elastic structure is configured to apply an elastic external force to the first clamping portion and the second clamping portion to make them rotate towards each other.
7. The fireproof roller shutter detection system according to claim 6, wherein: the force measuring module comprises a hoist and a clamping jaw member, and the clamping jaw member is configured to clamp the end portion of the roller shutter; the hoist is connected with the clamping jaw member through a rope.