Fire detection equipment for fire fighting

Abstract

The utility model provides fire detection equipment for fire fighting, which comprises a mounting seat fixedly mounted on a roof, and a winding mechanism and a guide mechanism are arranged in the mounting seat; a lifting rope is fixed at the upper end of the fire detector, and the lifting rope is wound and unwound through a winding mechanism, so that the fire detector can ascend and descend and is convenient to overhaul; the winding mechanism comprises a mounting plate, a supporting plate, a transmission shaft, a winding roll and a driving part, the driving part is in transmission with a turbine through a worm, the winding roll drives a lifting rope to move, and stable lifting of the fire detector is achieved; the guide mechanism comprises an insertion plate, a fixing screw, a locking plate, a guide sleeve and a wire hole, and the guide mechanism is used for guiding the fire detector to be accurately butted with the mounting seat, so that the mounting stability is improved; and a cover plate is fixed on the fire detector, a positioning column matched with the guide sleeve is arranged on the cover plate, and the positioning column realizes automatic guiding through a chamfer design, so that accurate resetting of the fire detector is ensured.

Description

Technical Field

[0001] This utility model belongs to the technical field of fire detection devices, specifically relating to a fire detection device for fire protection. Background Technology

[0002] Fire detection equipment is widely used in buildings, industrial facilities, and public places to detect early signs of fire and issue timely alarms, thereby reducing casualties and property damage. Currently, common fire detection equipment is typically fixedly installed on ceilings, walls, or other high locations to ensure comprehensive monitoring of fire hazards within the space. However, because fire detection equipment is usually installed at a high position, maintenance, cleaning, or replacement of detectors often requires the use of ladders, lifting platforms, or other high-altitude work tools. This not only increases maintenance costs but may also pose safety hazards, especially in confined spaces or complex environments where maintenance operations are even more difficult.

[0003] In existing technologies, some fire detection devices employ detachable mounting structures, allowing the detectors to be removed from the base for maintenance. However, these solutions still require manual operation and are prone to inaccurate detector alignment due to improper installation, affecting the normal operation of the equipment. Furthermore, some solutions utilize mechanical telescopic rods or electric lifting mechanisms to adjust the detector's position, but their structures are relatively complex and require additional installation space, making them unsuitable for all scenarios. Utility Model Content

[0004] To address the problems existing in the prior art, the purpose of this utility model is to provide a fire detection device for fire protection. This device enables the fire detector to automatically rise and fall via a motor-driven rope raising and lowering mechanism, facilitating maintenance operations from the ground and avoiding the risks of working at heights. Furthermore, when the fire detector is docked with the mounting base, a guiding mechanism ensures precise repositioning of the detector, improving installation stability and reliability, and solving the problems of difficult installation, inaccurate docking, and inconvenient maintenance in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A fire detection device for fire protection includes a fire detector. The upper end of the fire detector is provided with a mounting base that is fixedly installed on the roof. Suspension ropes are fixed to the upper surface of the fire detector near the left and right ends. A winding mechanism for winding and unwinding the suspension ropes is fixed to the inner side of the mounting base near the left and right ends.

[0007] The inner side of the mounting base is also equipped with two guiding mechanisms on the left and right sides to guide the hoisting rope. The guiding mechanisms are located directly below the winding mechanism and are used to guide and position the fire detector when it is docked with the mounting base.

[0008] Furthermore, the guiding mechanism includes an insert plate installed on the inner side wall of the mounting base and a fixing screw set on the outer side of the mounting base. A locking plate is fixed on the upper side of the insert plate, and the fixing screw passes through the side wall of the mounting base and is fixedly connected to the locking plate.

[0009] A guide sleeve is fixed to the lower side of the insert plate, and wire holes are opened at the corresponding positions of the insert plate and the guide sleeve.

[0010] Furthermore, a cover plate is fixed to the upper end of the fire detector, and positioning posts inserted into the guide sleeve are fixed to the upper surface of the cover plate near the left and right ends. The lower end of the suspension rope passes through the guide sleeve and is fixedly connected to the positioning post. The upper end of the positioning post is chamfered.

[0011] Furthermore, the winding mechanism includes a mounting plate fixed to the top of the inner side of the mounting base and a support plate fixed to the lower side of the mounting plate. A drive shaft runs horizontally through the support plate, a winding reel is fixed to one end of the drive shaft, and a drive component connected to the other end of the drive shaft and driving it to rotate is fixed to one side of the support plate.

[0012] Furthermore, the drive components include a motor fixed to one side of the support plate and a worm gear mounted on the other end of the drive shaft, with a worm gear meshing with the worm gear fixed on the output shaft of the motor.

[0013] Furthermore, the side wall of the mounting base is provided with a socket for inserting the insert plate, and a through hole is provided on the upper side of the socket for the fixing screw to pass through.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model provides a fire detection device for fire protection. Addressing the problems of inconvenient maintenance, difficult repairs, and insufficient safety of existing fire detection devices installed at heights, it adopts a liftable structure, allowing the fire detector to be raised and lowered for maintenance via a hoisting rope. This avoids the need for ladders or lifting equipment for high-altitude operations, improving the convenience and safety of maintenance. A rewinding mechanism controls the release and rewinding of the hoisting rope, enabling the fire detector to be raised and lowered smoothly, ensuring that maintenance personnel can complete the operation from the ground, reducing the risks associated with working at heights.

[0016] This invention employs a guiding mechanism for precise alignment of fire detectors during installation, solving the problems of misalignment and inaccurate alignment that often occur with existing detachable detectors. The guiding mechanism, through the cooperation of the guiding sleeve and positioning column, ensures the fire detector remains vertical during lifting and automatically corrects its position during alignment, guaranteeing a precise connection between the detector and the mounting base. This improves the stability and reliability of the equipment and prevents detector misalignment or signal abnormalities caused by installation errors.

[0017] This invention improves the stability of the hoisting rope's winding and unwinding by optimizing the structure of the winding mechanism, avoiding the problems of tangling and loosening that affect the detector's lifting and lowering caused by traditional winding devices. The winding mechanism uses a motor to drive a worm gear, which in turn drives the worm and transmission shaft to rotate, causing the winding reel to wind and unwind the hoisting rope. This transmission method ensures uniform tension on the hoisting rope, enabling the fire detector to rise and fall smoothly, avoiding swaying or jamming, and improving the reliability of the lifting mechanism.

[0018] All components of this invention are made of high-strength and durable materials. For example, the mounting base is made of metal to ensure structural stability, the suspension rope is made of high-temperature resistant Kevlar fiber, and the guiding mechanism is made of wear-resistant engineering plastic to ensure stability and durability during long-term use. These optimized designs enable this invention not only to be suitable for environments such as buildings and industrial plants, but also to operate stably for a long time in high-temperature, high-humidity, or corrosive environments, meeting the reliability and durability requirements of fire safety equipment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the guiding mechanism of this utility model;

[0021] Figure 3 This is a schematic diagram of the fire detector of this utility model;

[0022] Figure 4 This is a schematic diagram of the winding mechanism of this utility model;

[0023] Figure 5 This is a schematic diagram of the mounting base of this utility model.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1. Mounting base; 11. Insert; 12. Through hole; 2. Winding mechanism; 21. Mounting plate; 22. Winding reel; 23. Drive shaft; 24. Turbine; 25. Worm gear; 26. Motor; 27. Support plate; 3. Guiding mechanism; 31. Locking plate; 32. Fixing screw; 33. Insert plate; 34. Guiding sleeve; 35. Wire hole; 4. Fire detector; 41. Cover plate; 42. Positioning post; 5. Lifting rope. Detailed Implementation

[0026] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0027] Example 1:

[0028] like Figure 1 As shown, a fire detection device for fire protection includes a fire detector 4. The upper end of the fire detector 4 is fixedly mounted on a roof mounting base 1. The mounting base 1 is made of metal to ensure structural stability and durability, suitable for long-term use. The fire detector 4 employs highly sensitive sensing elements, such as photoelectric smoke sensors or temperature sensors, to improve the accuracy of fire monitoring. Suspension ropes 5 are fixed to the upper surface of the fire detector 4 near both the left and right ends. The suspension ropes 5 are made of high-strength, heat-resistant Kevlar fiber rope to ensure durability and high-temperature resistance under long-term stress. A winding mechanism 2 is fixed to the inner side of the mounting base 1 near both the left and right ends to wind and unwind the suspension ropes 5. The winding mechanism 2 uses a precision transmission system to ensure uniform tension of the suspension ropes 5 during winding and unwinding, preventing tangling or slackness and improving the smoothness of the fire detector 4's lifting and lowering.

[0029] like Figure 1 As shown, the inner side of the mounting base 1 is also equipped with two guiding mechanisms 3 on the left and right to guide the hoisting rope 5. The guiding mechanism 3 is located directly below the winding mechanism 2, so that the hoisting rope 5 always remains vertical during the winding and unwinding process, avoiding swaying or deviation, and ensuring the accurate reset of the fire detector 4. The guiding mechanism 3 guides and positions the fire detector 4 when it is docked with the mounting base 1, which improves the accuracy and stability of the installation and prevents the fire detector 4 from being misaligned or tilted during reset, thus affecting the detection accuracy.

[0030] like Figure 2 As shown, the guiding mechanism 3 includes an insert plate 33 inserted into the inner wall of the mounting base 1 and a fixing screw 32 disposed on the outer side of the mounting base 1. The insert plate 33 is made of stainless steel to improve corrosion resistance and mechanical strength, ensuring no deformation during long-term use. A locking plate 31 is fixed to the upper side of the insert plate 33. The locking plate 31 is made of high-strength alloy material to provide additional fixing strength and prevent the insert plate 33 from loosening during long-term use. The fixing screw 32 passes through the side wall of the mounting base 1 and is fixedly connected to the locking plate 31. The fixing screw 32 is made of M6 stainless steel. Stainless steel screws are used to ensure the reliability and stability of the connection and prevent loosening due to vibration or temperature changes. A guide sleeve 34 is fixed on the lower side of the insertion plate 33. The guide sleeve 34 is made of highly wear-resistant materials, such as polytetrafluoroethylene or engineering plastics, to reduce the friction between the lifting rope 5 and the positioning post 42 and the guide sleeve 34, thereby improving durability and service life. A wire hole 35 is opened at the position corresponding to the guide sleeve 34 on the insertion plate 33. The wire hole 35 is used to guide the signal line or power line of the fire detector 4, making the cable wiring more organized and avoiding tangling or damage.

[0031] like Figure 3As shown, a cover plate 41 is fixed to the upper end of the fire detector 4. The cover plate 41 is made of flame-retardant ABS engineering plastic to improve safety and protection capabilities and prevent the fire detector 4 from aging due to environmental factors during long-term use. Positioning posts 42, which are inserted into the guide sleeve 34, are fixed to the upper surface of the cover plate 41 near the left and right ends. The positioning posts 42 are made of stainless steel or hard aluminum alloy to enhance mechanical strength and prevent deformation caused by long-term friction. The lower end of the suspension rope 5 passes through the guide sleeve 34 and is fixedly connected to the positioning post 42. The fixing method is to use threaded fasteners or riveting process to ensure the firmness and stability of the connection. The upper end of the positioning post 42 is provided with a chamfer. The chamfer design allows the positioning post 42 to be automatically guided when inserted into the guide sleeve 34, reducing installation resistance and improving the docking accuracy of the fire detector 4.

[0032] like Figure 4 As shown, the winding mechanism 2 includes a mounting plate 21 fixed to the top inner side of the mounting base 1. The mounting plate 21 is made of carbon steel or aluminum alloy and has undergone surface anti-rust treatment to ensure that it is not affected by moisture or corrosion during long-term use. A support plate 27 is fixed to the lower side of the mounting plate 21. The support plate 27 is made of steel plate with a thickness of not less than 3mm to ensure sufficient load-bearing capacity and structural stability. A drive shaft 23 is transversely passed through the support plate 27. The drive shaft 23 is made of high-strength alloy steel and has undergone heat treatment to improve its wear resistance and fatigue resistance. The drive shaft 23 is designed to withstand high-intensity stress and ensure stability and reliability during long-term operation. One end of the drive shaft 23 is fixed with a winding reel 22, which is made of aluminum alloy and anodized to enhance corrosion resistance and mechanical strength. The groove design of the winding reel 22 ensures that the rope 5 can be wound up and down neatly and orderly, avoiding knots or jamming. One side of the support plate 27 is fixed with a drive component that is connected to the other end of the drive shaft 23 and drives its rotation. The drive component uses a high-precision transmission assembly to ensure smooth operation of the winding mechanism 2 and reduce mechanical wear and noise.

[0033] like Figure 4 As shown, the driving component includes a motor 26 fixed to one side of the support plate 27. The motor 26 is a 24V DC motor or a 220V AC motor and has overload protection to ensure safe and reliable operation. A worm 25 that meshes with the worm gear 24 is fixed on the output shaft of the motor 26. The worm gear 25 is made of quenched alloy steel and is ground with high precision to ensure smooth transmission and wear resistance. The worm gear 24 is made of high-strength copper alloy to improve wear resistance and ensure that it is not easily deformed after long-term use. The meshing accuracy of the worm gear 24 and the worm gear 25 reaches the ISO 6 standard to ensure transmission efficiency and service life.

[0034] like Figure 5As shown, the side wall of the mounting base 1 is provided with a socket 11 for inserting the insert plate 33. The socket 11 is made with precision machining to ensure that the insert plate 33 can be firmly inserted and to prevent loosening or deformation. The upper side of the socket 11 is provided with a through hole 12 for the fixing screw 32 to pass through. The diameter of the through hole 12 is set to 6.5mm to ensure that the fixing screw 32 can pass through smoothly and be tightened. At the same time, a reinforcing rib structure is provided around the through hole 12 to improve the overall impact resistance and ensure that the mounting base 1 will not be damaged or deformed by external forces during long-term operation.

[0035] Example 2:

[0036] This embodiment provides a fire detection device that is easy to maintain. It adopts an electric lifting structure, which allows the fire detector 4 to automatically descend to a position accessible to maintenance personnel without the need for ladders or other lifting equipment, thereby reducing the safety risks of working at heights and improving the convenience of maintenance.

[0037] Mounting base 1 is made of 2mm thick stainless steel to ensure long-term stability and corrosion resistance, making it suitable for various environments; fire detector 4 uses a combination of high-sensitivity photoelectric smoke sensor and temperature sensor to achieve dual detection of smoke and temperature, improving the accuracy of fire detection.

[0038] The winding mechanism 2 includes a mounting plate 21 fixed to the top of the mounting base 1. The mounting plate 21 is made of carbon steel and is sprayed with anti-rust coating to ensure durability. A support plate 27 with a thickness of 4mm is installed on the lower side of the mounting plate 21 to provide additional support strength. A 10mm diameter alloy steel drive shaft 23 runs horizontally through the support plate 27. One end of the drive shaft 23 is connected to an aluminum alloy winding reel 22 with a diameter of 50mm. The winding reel 22 is precision machined to form uniform grooves to ensure that the lifting rope 5 does not tangle or slip during winding and unwinding.

[0039] The power source for the winding mechanism 2 is a motor 26, which is a 24V DC motor with a rated power of 50W. It can provide a stable torque to ensure the smooth winding and unwinding of the rope 5. The motor 26 drives the turbine 24 to rotate through the worm gear 25. The turbine 24 is made of high-strength copper alloy material, and the worm gear 25 is made of carburized and quenched alloy steel. The transmission ratio is set to 1:20 to ensure that the fire detector 4 can be raised and lowered slowly and stably, avoiding impact caused by excessive speed.

[0040] In this embodiment, the design allows the fire detector 4 to be operated by the control switch to slowly descend to a height of about 1.5m above the ground during maintenance. This facilitates inspection and maintenance by maintenance personnel. After the operation is completed, the control motor 26 is reversed to slowly rise to the mounting base 1 and accurately reset the fire detector 4.

[0041] Example 3:

[0042] This embodiment addresses the problem of large installation errors in existing detachable fire detectors by providing a fire detection device with a guiding mechanism 3, ensuring that the fire detector 4 can accurately dock during lifting and resetting, thereby improving the stability and reliability of the device.

[0043] The guiding mechanism 3 consists of an insert plate 33 fixed inside the mounting base 1. The insert plate 33 is made of 304 stainless steel plate with a thickness of 3mm and the surface is oxidized to improve corrosion resistance and wear resistance. A locking plate 31 is provided above the insert plate 33. The locking plate 31 is made of aluminum alloy and is fixed with M6 stainless steel screws to ensure the structural firmness. A guiding sleeve 34 is fixed at the lower end of the insert plate 33. The guiding sleeve 34 is made of wear-resistant POM (polyoxymethylene) material and its inner wall is precision machined to allow the positioning post 42 to be inserted smoothly and improve the docking accuracy. The inner diameter of the guiding sleeve 34 is set to 8mm, which matches the diameter of the positioning post 42 of 6.8mm to ensure that the positioning post 42 will not wobble after insertion.

[0044] The fire detector 4 is provided with a cover plate 41 at the top. The cover plate 41 is made of flame-retardant ABS engineering plastic with a thickness of 2mm to provide additional protection. Two positioning posts 42 are fixed on the cover plate 41. The positioning posts 42 are made of stainless steel and have a 30° chamfer at the top to reduce frictional resistance during docking and ensure that the fire detector 4 can be smoothly docked into the mounting base 1.

[0045] During the ascent of the fire detector 4, the positioning column 42 gradually approaches the guide sleeve 34 and is slowly inserted under the guidance of the guide sleeve 34, so that the fire detector 4 can automatically adjust its posture to avoid docking misalignment or unstable installation; after the fire detector 4 is fully reset, the hoisting rope 5 maintains a certain tension to ensure that the equipment is stable and does not shake.

[0046] The design of this embodiment solves the problems of inaccurate docking and poor signal contact caused by installation errors in existing detachable detectors, thereby improving the stability of fire detection equipment.

[0047] Example 4:

[0048] This embodiment addresses the problems of rope entanglement and slack that may occur in existing wire winding devices by providing an optimized winding mechanism 2, which improves the stability of the fire detector 4 during the lifting process and avoids shaking or jamming.

[0049] The winding mechanism 2 includes a mounting plate 21 fixed to the top of the mounting base 1. The mounting plate 21 is made of 2mm thick carbon steel and is treated with anti-rust spraying to improve durability. A support plate 27 with a thickness of 4mm is installed on the lower side of the mounting plate 21. A 10mm diameter alloy steel drive shaft 23 is transversely passed through the support plate 27. An aluminum alloy winding reel 22 with a diameter of 50mm is fixed to one end of the drive shaft 23. The groove depth of the winding reel 22 is set to 5mm to ensure that the lifting rope 5 does not slip during winding and unwinding.

[0050] The motor 26 is a DC motor with a rated power of 50W and a speed set at 60rpm. It also has an overload protection function to ensure that it will not be damaged by overheating during long-term use. The motor 26 drives the turbine 24 to rotate through the worm gear 25. The transmission ratio of the worm gear 25 is set to 1:20, which allows the fire detector 4 to rise and fall slowly at a speed of about 10mm / s to avoid impact caused by excessive speed.

[0051] The suspension rope 5 is made of 3mm diameter Kevlar fiber rope, which can withstand high temperatures up to 400℃ and has good wear resistance, ensuring that it will not break or wear during long-term use. The lower end of the suspension rope 5 is connected to the positioning post 42 of the fire detector 4 through a stainless steel fixing buckle and is fixed by a reinforced riveting process to ensure the stability of the connection.

[0052] In actual operation, when the control switch starts the winding mechanism 2, the motor 26 drives the winding reel 22 to rotate, and the suspension rope 5 is tightened evenly, so that the fire detector 4 rises slowly; when the fire detector 4 is lowered to the maintenance position, the motor 26 stops, and the suspension rope 5 maintains appropriate tension to prevent the detector from shaking.

[0053] The optimized winding mechanism 2 design in this embodiment makes the lifting and lowering of the fire detector 4 more stable and reliable, avoiding the problems of tangling and loosening that affect the use of traditional winding devices, and improving the long-term stability of the equipment.

[0054] The working principle of this utility model is as follows: When the fire detector 4 is being repaired, the motor 26 is controlled by the control switch to drive the worm gear 25 to rotate. The worm gear 25 then drives the turbine 24 to drive the transmission shaft 23 to rotate. The transmission shaft 23 drives the reel 22 to release the rope 5. At this time, the fire detector 4 at the lower end of the rope 5 will continue to descend until the maintenance personnel can easily perform maintenance operations on the fire detector 4 without the need for maintenance personnel to use lifting or other lifting equipment for high-altitude operations.

[0055] After maintenance, the motor 26 is reversed using the control switch. The reverse rotation of the motor 26 ultimately drives the reel 22 to wind up the suspension rope 5. The suspension rope 5 then lifts the fire detector 4. When the fire detector 4 is docked with the mounting base 1, the positioning post 42 on the fire detector 4 will be inserted into the guide sleeve 34 along with the suspension rope 5. As the positioning post 42 is inserted and positioned in the guide sleeve 34, the precise docking and cooperation between the fire detector 4 and the mounting base 1 is completed.

[0056] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A fire detection device for fire fighting, comprising a fire detector (4), characterized in that: The fire detector (4) is provided with a mounting base (1) fixedly installed on the roof at the upper end, and a hanging rope (5) is fixed on the upper surface of the fire detector (4) near the left and right ends. A winding mechanism (2) for winding and unwinding the hanging rope (5) is fixed on the inner side of the mounting base (1) near the left and right ends. The inner side of the mounting base (1) is also equipped with two guiding mechanisms (3) for guiding the hoisting rope (5). The guiding mechanism (3) is located directly below the winding mechanism (2), and the guiding mechanism (3) guides and positions the fire detector (4) when it docks with the mounting base (1).

2. A fire detection device for fire fighting according to claim 1, characterized in that: The guiding mechanism (3) includes a plate (33) inserted into the inner wall of the mounting base (1) and a fixing screw (32) set on the outer side of the mounting base (1). A locking plate (31) is fixed on the upper side of the plate (33), and the fixing screw (32) passes through the side wall of the mounting base (1) and is fixedly connected to the locking plate (31). A guide sleeve (34) is fixed on the lower side of the insert plate (33), and a wire hole (35) is opened at the position corresponding to the guide sleeve (34) of the insert plate (33).

3. A fire detection device for fire fighting according to claim 2, characterized in that: The fire detector (4) is fixed with a cover plate (41) at the upper end, and the upper surface of the cover plate (41) is fixed with positioning posts (42) inserted in the guide sleeve (34) near the left and right ends. The lower end of the hoisting rope (5) passes through the guide sleeve (34) and is fixedly connected to the positioning post (42). The upper end of the positioning post (42) is chamfered.

4. A fire detection device for fire fighting according to claim 1, characterized in that: The winding mechanism (2) includes a mounting plate (21) fixed to the top of the inner side of the mounting base (1) and a support plate (27) fixed to the lower side of the mounting plate (21). A drive shaft (23) runs horizontally through the support plate (27). A winding reel (22) is fixed to one end of the drive shaft (23). A drive component is fixed to one side of the support plate (27) and connected to the other end of the drive shaft (23) to drive its rotation.

5. A fire detection device for fire fighting according to claim 4, characterized in that: The drive unit includes a motor (26) fixed on one side of the support plate (27) and a turbine (24) mounted on the other end of the transmission shaft (23). A worm (25) that meshes with the turbine (24) is fixed on the output shaft of the motor (26).

6. A fire detection device for fire fighting according to claim 2, characterized in that: The mounting base (1) has a socket (11) for inserting the insert plate (33) on its side wall, and a through hole (12) for the fixing screw (32) to pass through is provided on the upper side of the socket (11).

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