Fire-fighting fire alarm structure

Abstract

The utility model discloses a fire -fighting fire alarm structure, specifically related to fire -fighting alarm technical field, including wall surface, the upper side area detachable of wall surface places positioning frame, the upper side of positioning frame adopts welding fixed installation to have first fixed frame, the inside fixed mounting of first fixed frame has rotary rod, rotary rod is through movable installation and is equipped with first guide wheel, the front side of wall surface is through fixed installation and is equipped with third fixed frame, and the inside swing of third fixed frame is equipped with winding rod, through positioning rope mechanical transmission trigger micro -switch alarm, effectively avoids environmental interference, promotes alarm accuracy and reliability, and the initial stage of fire, flame or high temperature leads to building structure thermal expansion or direct effect on positioning rope, makes its displacement or stress change, can trigger alarm in time, and personnel evacuation and fire fighting win precious time, and alarm lamp and loudspeaker are detachable, and the maintenance replacement is convenient.

Description

Technical Field

[0001] This utility model relates to the field of fire alarm technology, and more specifically, to a fire alarm structure. Background Technology

[0002] The timeliness of fire alarm systems is crucial, directly affecting people's lives and the extent of property loss. Currently, most common fire alarm methods rely on electronic sensors, such as smoke sensors and temperature sensors. These traditional alarm methods have demonstrated certain advantages in long-term application and have played an important role in fire early warning.

[0003] Existing publication number CN220455919U discloses a fire alarm device, which includes a housing and an alarm component. The housing is located inside a server rack. The alarm component includes a detection sensor, a controller, and an alarm, all housed within the housing. Both the detection sensor and the alarm are communicatively connected to the controller. The detection sensor can promptly detect whether a fire has occurred inside the server rack and transmit the collected fire signal to the controller in real time. The controller then transmits the fire signal to the alarm, causing the alarm to issue an alarm signal promptly. Because the housing is detachably connected to the inner wall of the server rack, the fire alarm device can be conveniently installed in any server rack requiring monitoring. When a fire occurs in a single server rack, the corresponding alarm component of the fire alarm device can quickly trigger an alarm, enabling timely detection of fire hazards without requiring monitoring of the entire server room's fire protection system. This results in a faster response, higher alarm timeliness, and improved fire safety for the server rack. The inventors discovered the following problems with the existing technology during the development of this utility model:

[0004] With increasingly complex environments and diverse fire scenarios, electronic sensors are susceptible to interference from environmental factors. Dust accumulation affects the sensitivity of smoke sensors, leading to false alarms or missed alarms and reducing alarm accuracy. In the early stages of a fire, smoke concentration and temperature changes have not yet reached the trigger values ​​of electronic sensors. At this time, although flames have already formed, traditional alarm systems cannot detect them in time, thus delaying valuable alarm opportunities and putting personnel evacuation and fire fighting efforts in a passive position.

[0005] Therefore, a fire alarm structure is proposed to address the above problems. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a fire alarm structure to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a fire alarm structure, including a wall surface, wherein a positioning frame is detachably mounted on the upper side of the wall surface, a first fixing frame is fixedly installed on the upper side of the positioning frame by welding, a rotating rod is fixedly installed inside the first fixing frame, a first guide wheel is movably mounted on the rotating rod, a third fixing frame is fixedly installed on the front side of the wall surface, a winding rod is movably arranged inside the third fixing frame, and a positioning rope is tightly wound on the outer side of the winding rod.

[0008] Preferably, the front side of the positioning frame has a threaded hole that matches the positioning bolt. During installation, the positioning bolt is slowly screwed into the threaded hole on the front side of the positioning frame. As the positioning bolt goes deeper, the end of the positioning bolt is tightly pressed against the wall.

[0009] Preferably, the contact portion between the rotating rod and the first guide wheel is provided with a high-performance bearing, the inner ring of the bearing being tightly fitted onto the rotating rod, and the outer ring of the bearing engaging with the inner hole of the first guide wheel.

[0010] Preferably, a second fixing frame is fixedly installed on the front side of the wall by welding. The second fixing frame has a rotating rod inside, which is rotatably connected to the second fixing frame through a bearing. A second guide wheel is rotatably connected to the outside of the rotating rod, and the second guide wheel is located directly below the first guide wheel.

[0011] Preferably, the left and right ends of the winding rod are respectively connected to limit baffles by welding. The winding rod passes through one side of the third fixing frame and extends to the outside of the third fixing frame. A handle is welded to the end of the winding rod that extends to the outside.

[0012] Preferably, the positioning rope passes through the rotating rod and the first guide wheel in sequence along a predetermined path, and one end of the positioning rope is connected to an alarm box.

[0013] Preferably, a limit rod is fixedly installed on the front side of the wall by bolts. Positioning holes are evenly opened on one side of the limit rod. A sliding groove is provided inside the limit rod. A guide rod is embedded inside the sliding groove. The end of the guide rod away from the limit rod is sleeved on the outside of the positioning rope. A protective ring is provided at the position where the positioning rope and the guide rod contact each other. The inner ring of the protective ring is tightly fitted to the positioning rope.

[0014] Preferably, the alarm box is equipped with an internal suction fan, an alarm light is installed on one side of the alarm box via a clip, a speaker is installed on the right side of the alarm box via a detachable structure, and heat dissipation strip holes are evenly distributed on the right side of the alarm box.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] Compared with existing technologies, this fire alarm structure connects to the alarm box via a positioning rope through mechanical transmission. Compared with traditional electronic alarm methods that are easily interfered with by environmental factors such as dust and moisture, this structure triggers the alarm with a mechanical signal, which greatly reduces the impact of the external environment on the accuracy of the alarm, reduces the occurrence of false alarms and missed alarms, and improves the reliability of the alarm system.

[0017] Compared with existing technologies, this fire alarm structure utilizes flames or high temperatures to induce slight deformation in the building structure. Once the positioning rope is subjected to tension or displacement, it quickly transmits a signal to the alarm box via mechanical transmission components such as rotating rods and guide wheels. This mechanical transmission method provides a rapid response, eliminating the need to wait for smoke concentration or temperature to reach the threshold of electronic sensors. It can trigger the alarm in the early stages of a fire, buying valuable time for personnel evacuation and fire fighting. In addition, the detachable positioning frame and replaceable positioning rope facilitate the installation, maintenance, and upgrades of the structure. The exhaust fan and heat dissipation vents inside the alarm box help dissipate heat and extend the service life of the equipment. The detachable alarm light and speaker facilitate maintenance and replacement, further enhancing the practicality and stability of the entire fire alarm structure. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the structure of this utility model from the right side.

[0020] Figure 3 This is a three-dimensional structural diagram of the alarm box of this utility model.

[0021] The attached diagram is labeled as follows: 1. Wall; 2. Positioning frame; 3. Positioning bolt; 4. First fixing frame; 5. Rotating rod; 6. First guide wheel; 7. Second fixing frame; 8. Rotating rod; 9. Second guide wheel; 10. Third fixing frame; 11. Rewinding rod; 12. Limiting baffle; 13. Handle; 14. Positioning rope; 15. Alarm box; 16. Limiting rod; 17. Positioning hole; 18. Guide rod; 19. Protective ring; 20. Suction fan; 21. Alarm light; 22. Speaker; 23. Heat dissipation strip hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0023] As attached Figures 1 to 3 The fire alarm structure shown includes a wall 1. A positioning frame 2 is detachably mounted on the upper part of the wall 1. A first fixing frame 4 is fixedly installed on the upper part of the positioning frame 2 by welding. A rotating rod 5 is fixedly installed inside the first fixing frame 4. A first guide wheel 6 is movably installed on the rotating rod 5. A third fixing frame 10 is fixedly installed on the front side of the wall 1. A winding rod 11 is movably arranged inside the third fixing frame 10. A positioning rope 14 is tightly wound on the outside of the winding rod 11.

[0024] Among them: the positioning frame 2 can be detachably installed on the upper side of the wall 1. This design makes it easy to flexibly adjust the position of the positioning frame 2 according to actual needs, and can be quickly replaced in case of damage, which improves the convenience of installation and maintenance. Next, the first fixing frame 4 is welded on the upper side of the positioning frame 2 to ensure the stability of the structure. The first fixing frame 4 is equipped with a rotating rod 5 and a first guide wheel 6 to provide stable guidance for the positioning rope 14 and ensure its smooth operation. Secondly, the third fixing frame 10 is reliably installed on the front side of the wall 1. The winding rod 11 is movably set inside to tightly wind the positioning rope 14, which can effectively wind and unwind the positioning rope 14 to adapt to different scenario needs. Example 2

[0025] Based on Example 1, the solution in Example 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 3 As shown below, see details:

[0026] As a preferred embodiment, the front side of the positioning frame 2 is provided with a threaded hole that matches the positioning bolt 3. During installation, the positioning bolt 3 is slowly screwed into the threaded hole on the front side of the positioning frame 2. As the positioning bolt 3 goes deeper, the end of the positioning bolt 3 is tightly pressed against the wall surface 1. By controlling the screwing depth of the positioning bolt 3, the wall surface 1 and the positioning frame 2 can be stabilized with the help of the positioning bolt 3, effectively preventing the positioning frame 2 from shaking or shifting during use.

[0027] In a preferred embodiment, a high-performance bearing is provided at the contact portion between the rotating rod 5 and the first guide wheel 6. The bearing is made of high-quality alloy steel and has high hardness, high wear resistance, and good fatigue resistance. It can withstand large loads and frequent rotational friction. The inner ring of the bearing is tightly fitted onto the rotating rod 5, while the outer ring is fitted into the inner hole of the first guide wheel 6, providing stable support for the first guide wheel 6 so that it can rotate smoothly and flexibly around the rotating rod 5, effectively reducing frictional resistance and energy loss during rotation.

[0028] In a preferred embodiment, a second fixing frame 7 is fixedly installed on the front side of the wall 1 by welding. The fixing frame has a stable structure and can withstand a certain external force without deformation. The interior of the second fixing frame 7 is provided with a rotating rod 8. The rotating rod 8 is rotatably connected to the second fixing frame 7 through a bearing, ensuring that the rotating rod 8 rotates flexibly and smoothly. The outer side of the rotating rod 8 is rotatably connected to a second guide wheel 9. The second guide wheel 9 is located directly below the first guide wheel 6, and the two are corresponding in the vertical direction so that the positioning rope 14 can smoothly transition between the two guide wheels.

[0029] In a preferred embodiment, the left and right ends of the winding rod 11 are respectively connected by welding of limit baffles 12. The limit baffles 12 are circular and their diameter is slightly larger than the maximum outer diameter formed after the positioning rope 14 is wound on the winding rod 11. This can effectively prevent the positioning rope 14 from slipping off both ends of the winding rod 11 during winding or unwinding. The winding rod 11 passes through one side of the third fixing frame 10. The part of the winding rod 11 that passes through is polished to ensure smooth rotation without jamming. The winding rod 11 also extends to the outside of the third fixing frame 10. A handle 13 is welded to the end of the winding rod 11 that extends to the outside, so that the operator can drive the winding rod 11 to rotate by turning the handle 13.

[0030] In a preferred embodiment, the positioning rope 14 passes through the rotating rod 8 and the first guide wheel 6 in sequence along a predetermined path, and one end of the positioning rope 14 is connected to the alarm box 15. The positioning rope 14 passes through the rotating rod 8 and the first guide wheel 6 in a predetermined path and finally connects to the detachable alarm box 15. When an emergency such as a fire occurs, the change in the state of the positioning rope 14 can trigger the alarm box 15 in time. The detachable structure facilitates the maintenance and replacement of the alarm box 15, ensuring the stability of the alarm function.

[0031] In a preferred embodiment, a limit rod 16 is bolted to the front side of wall 1 to ensure its stable position and withstand a certain amount of external force. The limit rod 16 is a slender rod made of sturdy metal to ensure its durability. Positioning holes 17 are evenly spaced on one side of the limit rod 16, and these holes are of the same size for subsequent positioning adjustments. A groove is provided inside the limit rod 16, and a guide rod 18 is embedded inside the groove, allowing it to slide smoothly along the groove. The surface of the guide rod 18 is smoothed, and the guide rod 18 is positioned away from the limit rod. The other end of the rod 16 is fitted over the outside of the positioning rope 14. It is neither too loose, which would cause the positioning rope 14 to slip off, nor too tight, which would affect the normal movement of the positioning rope 14. A protective ring 19 is provided at the contact point between the positioning rope 14 and the guide rod 18. The protective ring 19 is made of soft and wear-resistant rubber. The inner ring of the protective ring 19 fits tightly against the positioning rope 14, and the outer ring contacts the guide rod 18. This can effectively buffer the friction generated between the positioning rope 14 and the guide rod 18 during movement, prevent the positioning rope 14 from wearing out and breaking due to long-term friction, and extend the service life of the positioning rope 14.

[0032] In a preferred embodiment, an exhaust fan 20 is installed inside the alarm box 15. The exhaust fan 20 has a strong suction capacity, drawing external smoke into the alarm box 15. The smoke is detected by a smoke sensor inside the alarm box 15. An alarm light 21 is installed on one side of the alarm box 15 via a clip, which facilitates quick replacement when the alarm light 21 malfunctions. A speaker 22 is installed on the right side of the alarm box 15 via a detachable structure, which facilitates inspection and maintenance. In addition, heat dissipation strip holes 23 are evenly distributed on the right side of the alarm box 15, which effectively reduces the heat generated by the electronic components inside the alarm box 15 due to long-term operation and prevents a large amount of dust and other debris from entering the alarm box 15.

[0033] In this embodiment, the first guide wheel 6, the second guide wheel 9, the winding rod 11, and the handle 13 are all commercially available devices known to those skilled in the art. They can be customized or selected according to actual needs. Here, we are only using them without making any structural or functional improvements, and we will not go into detail about them here.

[0034] The working process of this utility model is as follows: First, the positioning frame 2 is placed on the upper side of the wall 1, and the positioning bolt 3 is screwed into the threaded hole on the front side of the positioning frame 2 so that its end is pressed against the wall 1 to complete the positioning frame 2 fixation; the third fixing frame 10, the second fixing frame 7, and the limiting rod 16 are fixed to the front side of the wall 1 in a reliable manner.

[0035] A rotating rod 5 is installed on the inner wall of the first fixed frame 4, and a first guide wheel 6 is installed using a high-performance bearing; a rotating rod 8 is installed in the second fixed frame 7 using a bearing, and then a second guide wheel 9 is installed; a limiting baffle 12 is welded to both ends of the winding rod 11, the winding rod 11 is placed into the third fixed frame 10, and a handle 13 is welded to the outside; the guide rod 18 is embedded into the sliding groove of the limiting rod 16, and a protective ring 19 is installed at the contact point between the positioning rope 14 and the guide rod 18.

[0036] The positioning rope 14 is tightly wound around the winding rod 11, so that it passes through the rotating rod 8, the second guide wheel 9, and the first guide wheel 6 in sequence along a predetermined path, and one end is connected to the alarm box 15 by a detachable structure.

[0037] In the early stages of a fire, the flames or high temperatures cause the building structure to expand thermally or directly act on the positioning rope 14, resulting in its displacement or changes in force. This triggers the device inside the alarm box 15, illuminating the alarm light 21 and emitting a sound from the speaker 22. Simultaneously, the suction fan 20 and the heat dissipation vents 23 assist in heat dissipation. The above describes the working principle of this type of fire alarm structure.

Claims

1. A fire alarm structure, comprising a wall surface (1), characterized in that: A positioning frame (2) can be detachably installed on the upper side of the wall (1). A first fixing frame (4) is fixedly installed on the upper side of the positioning frame (2) by welding. A rotating rod (5) is fixedly installed inside the first fixing frame (4). A first guide wheel (6) is movably installed on the rotating rod (5). A third fixing frame (10) is fixedly installed on the front side of the wall (1). A winding rod (11) is movably installed inside the third fixing frame (10). A positioning rope (14) is tightly wound on the outside of the winding rod (11).

2. The fire alarm structure according to claim 1, characterized in that: The positioning frame (2) has a threaded hole on the front side that is compatible with the positioning bolt (3). During installation, the positioning bolt (3) is slowly screwed into the threaded hole on the front side of the positioning frame (2). As the positioning bolt (3) goes deeper, the end of the positioning bolt (3) is tightly pressed against the wall surface (1).

3. A fire alarm structure according to claim 2, characterized in that: The contact portion between the rotating rod (5) and the first guide wheel (6) is provided with a high-performance bearing. The inner ring of the bearing is tightly fitted onto the rotating rod (5), while the outer ring of the bearing is engaged with the inner hole of the first guide wheel (6).

4. A fire alarm structure according to claim 2, characterized in that: The front side of the wall (1) is fixedly installed with a second fixing frame (7) by welding. The interior of the second fixing frame (7) is provided with a rotating rod (8). The rotating rod (8) is rotatably connected to the second fixing frame (7) through a bearing. The outer side of the rotating rod (8) is rotatably connected with a second guide wheel (9). The second guide wheel (9) is located directly below the first guide wheel (6).

5. A fire alarm structure according to claim 4, characterized in that: The left and right ends of the winding rod (11) are respectively connected by welding of limit baffles (12). The winding rod (11) passes through one side of the third fixing frame (10) and extends to the outside of the third fixing frame (10). A handle (13) is welded to the end of the winding rod (11) that extends to the outside.

6. A fire alarm structure according to claim 4, characterized in that: The positioning rope (14) passes through the rotating rod (8) and the first guide wheel (6) in sequence according to a predetermined path, and one end of the positioning rope (14) is connected to the alarm box (15).

7. A fire alarm structure according to claim 1, characterized in that: A limiting rod (16) is fixedly installed on the front side of the wall (1) by bolts. A positioning hole (17) is evenly opened on one side of the limiting rod (16). A sliding groove is provided inside the limiting rod (16). A guide rod (18) is embedded inside the sliding groove. The end of the guide rod (18) away from the limiting rod (16) is sleeved on the outside of the positioning rope (14). A protective ring (19) is provided at the position where the positioning rope (14) and the guide rod (18) come into contact with each other. The inner ring of the protective ring (19) is tightly fitted to the positioning rope (14).

8. A fire alarm structure according to claim 6, characterized in that: The alarm box (15) is equipped with a suction fan (20) inside. An alarm light (21) is installed on one side of the alarm box (15) by a buckle. A speaker (22) is installed on the right side of the alarm box (15) by a detachable structure. In addition, heat dissipation strip holes (23) are evenly opened on the right side of the alarm box (15).

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