Combined fire detector

Abstract

The utility model provides a combined fire detector, and relates to the technical field of detectors. The combined fire detector comprises a smoke temperature composite detector, a plurality of detection holes are formed in the middle of the smoke temperature composite detector, fixing frames are fixed to the two sides of the smoke temperature composite detector, frame grooves are formed in the middles of the two fixing frames, and sliding plates are slidably connected to the inner walls of the two frame grooves. Springs are fixed to the separated sides of the two sliding plates, connecting frames are rotationally connected to the lower ends of the two sliding plates, connecting blocks are rotationally connected to the other ends of the two connecting frames, and protective frames are fixed to the lower ends of the two connecting blocks. And a rotating groove is formed in the lower side of the smoke temperature composite detector. According to the combined fire detector, the protection frame moves upwards through collision, the stress buffering effect is achieved, the effect of prolonging the service life of the fire detector is achieved, the automatic cleaning effect is achieved, and the effect of improving the use convenience of the detector is achieved.

Description

Technical Field

[0001] This utility model relates to a combined fire detector, belonging to the field of detector technology. Background Technology

[0002] A combination fire detector is a device in an automatic fire alarm system that detects fires on-site. Its function is to monitor whether a fire is occurring in the environment. Once a fire occurs, it converts the physical characteristics of the fire, such as temperature, smoke, and gas, into electrical signals and immediately sends an alarm signal to the fire alarm controller.

[0003] Existing modular fire detectors can meet daily fire detection needs. However, in practical applications, protective frames are usually installed to protect the detection holes at the bottom of the detectors from impacts. Currently, the protective frames are rigidly connected to the detectors; once an impact occurs, the impact force is directly transmitted to the detector, easily causing damage and significantly reducing its protective performance, thus making the detectors insufficiently safe to use. Furthermore, during long-term use, dust and impurities easily accumulate in the detection holes. To ensure normal operation, staff need to clean them regularly, which not only increases workload but also reduces the ease of use of the detectors, thus making them inconvenient to use. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] This invention provides a combined fire detector to solve the problems of insufficient protection and lack of ease of use of existing detectors.

[0006] (II) Technical Solution

[0007] This utility model is achieved through the following technical solution: a combined fire detector, including a smoke and temperature composite detector, wherein the smoke and temperature composite detector has several detection holes in the middle, and a fixing frame is fixed on both sides of the smoke and temperature composite detector. A frame groove is opened in the middle of the two fixing frames, and a sliding plate is slidably connected to the inner wall of the two frame grooves. A spring is fixed on the separating side of the two sliding plates. A connecting frame is rotatably connected to the lower end of the two sliding plates. A connecting block is rotatably connected to the other end of the two connecting frames, and a protective frame is fixed to the lower end of the two connecting blocks.

[0008] The smoke and temperature composite detector has a rotating groove on its lower side, and a connecting structure is provided on the protective frame. A cleaning frame is provided on the connecting structure. The connecting structure can rotate around the central axis of the rotating groove to scrape and clean the dust and impurities blocking the detector hole.

[0009] Preferably, the connecting structure comprises two driving frames, the middle part of each of the two driving frames is provided with an inclined slot, the inner wall of each of the two inclined slots is slidably connected with a connecting rod, the proximal end of each of the two connecting rods is fixed with a cleaning frame, and the middle part of the cleaning frame is provided with a plurality of penetrating grooves.

[0010] Preferably, the lower end of each of the two driving frames is fixed on the two sides of the protection frame, the two inclined slots are arranged in the middle part of the two driving frames, the outer surface of each of the two connecting rods is slidably connected with the inner wall of each of the two inclined slots.

[0011] Preferably, the proximal end of each of the two connecting rods is fixed on the two sides of the cleaning frame, the inner wall of the cleaning frame is rotatably connected with the inner wall of the rotating groove, the vertical section of the cleaning frame is L-shaped, the inner wall of the cleaning frame is rotatably connected with the outer surface of the smoke-temperature composite detector, and the plurality of penetrating grooves are arranged in the middle part of the cleaning frame.

[0012] Preferably, the upper side of each of the two fixing frames is fixed on the two sides of the smoke-temperature composite detector, the middle part of each of the two fixing frames is provided with a frame groove, the outer surface of each of the two sliding plates is slidably connected with the inner wall of each of the two frame grooves, and the vertical section of each of the two sliding plates is in the shape of an inverted T.

[0013] Preferably, the proximal end of each of the two connecting rods is fixed on the two sides of the cleaning frame, the inner wall of the cleaning frame is rotably connected with the inner wall of the rotating groove, the vertical section of the cleaning frame is L-shaped, the inner wall of the cleaning frame is rotatably connected with the outer surface of the smoke-temperature composite detector, and the plurality of penetrating grooves are arranged in the middle part of the cleaning frame.

[0014] Preferably, the two sides of the smoke-temperature composite detector are fixed with mounting frames, and the middle part of each of the two mounting frames is provided with a reserved hole.

[0015] The utility model provides a combined fire detector, and the beneficial effects thereof are as follows:

[0016] (1) The combined fire detector is capable of achieving stress buffering effect through mutual cooperation of the fixed frame, the frame groove, the sliding plate, the spring, the connecting frame, the connecting block and the protection frame caused by upward movement of the protection frame due to collision, thereby effectively avoiding damage to the detector caused by excessive impact force and prolonging the service life of the fire detector.

[0017] (2) The combined fire detector is capable of achieving automatic cleaning effect through mutual cooperation of the protection frame, the driving frame, the inclined slot, the connecting rod, the cleaning frame, the penetrating groove and the rotating groove caused by upward movement of the protection frame due to collision, thereby greatly facilitating the use of the detector and improving the convenience of the detector. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1The whole structure schematic view of the utility model;

[0019] Figure 2 The partial sectional view of the utility model;

[0020] Figure 3 The utility model Figure 2 A part structure enlarged view of the utility model;

[0021] Figure 4 The partial structure schematic view of the utility model.

[0022]

Main component symbol explanation

[0023] 1, smoke temperature composite detector;2, detection hole;3, fixed frame;4, frame groove;5, sliding plate;6, spring;7, connecting frame;8, connecting block;9, protection frame;10, driving frame;11, inclined groove;12, connecting rod;13, cleaning frame;14, through groove;15, rotating groove;16, mounting frame;17, reserved hole. Specific implementation

[0024] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific implementation modes.

[0025] Example one

[0026] The utility model embodiment provides a combined fire detector.

[0027] Please refer to Figure 1 、 Figure 2 、 Figure 3 And Figure 4 , including smoke temperature composite detector 1, the smoke sensing part of smoke temperature composite detector 1 generally adopts photoelectric smoke sensing principle, such as infrared scattering principle, utilizes the emission tube to emit infrared rays, when smoke enters, the light signal received by the receiving tube is enhanced due to scattering, when the smoke concentration reaches a certain threshold, the alarm signal is output, the temperature sensing part usually adopts a thermosensitive element, such as thermistor, the thermosensitive element is sensitive to temperature change, when the ambient temperature reaches the set action temperature or the temperature change rate exceeds a certain value, corresponding electrical signal change will be generated, after processing by amplification circuit and intelligent algorithm, the alarm signal is output, a plurality of detection holes 2 are formed in the middle of smoke temperature composite detector 1, smoke can enter the optical maze or sensing area inside the detector through detection hole 2, fixed frame 3 is fixed on both sides of smoke temperature composite detector 1, frame groove 4 is formed in the middle of two fixed frames 3, sliding plate 5 is slidably connected to the inner wall of two frame grooves 4, spring 6 is fixed on the side apart from the two sliding plates 5, connecting frame 7 is rotatably connected to the lower end of two sliding plates 5, connecting block 8 is rotatably connected to the other end of two connecting frames 7, protection frame 9 is fixed to the lower end of two connecting blocks 8.

[0028] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , it is worth noting that the two fixed frame 3 upper side fixed in the smoke temperature composite detector 1 both sides, two frame slot 4 through in the middle of two fixed frame 3, two sliding plate 5 outer surface sliding connection in two frame slot 4 inner wall, two sliding plate 5 vertical cutting surface are all set to inverted T shape, two springs 6 near end fixed in two sliding plate 5 apart side, two springs 6 apart end fixed in two frame slot 4 apart side inner wall, two connecting frame 7 apart end rotationally connected in two sliding plate 5 lower end, two connecting frame 7 near end rotationally connected in two connecting block 8 upper end, two connecting block 8 lower end fixed in the protection frame 9 both sides, smoke temperature composite detector 1 both sides are fixed with mounting bracket 16, two mounting bracket 16 middle part are all provided with reserved hole 17.

[0029] The utility model discloses in using: through the knock and lead to the protection frame 9 go up, because the protection frame 9 both sides and connecting block 8 fixed connection, so connecting block 8 will also move upward along with it. Two moving up connecting block 8 will pass through its upper end rotationally connected connecting frame 7, drive two sliding plate 5 in the fixed frame 3 middle part opening frame slot 4 and carry out the removal of each other. This is because the frame slot 4 to sliding plate 5 played the limiting effect, make sliding plate 5 only move in the defined direction;

[0030] In the process of two sliding plate 5 removal of each other, they will press the spring 6 fixed on respective apart side. Spring 6 is extruded, will produce the elastic force. This elastic force can buffer the impact force produced by the knock, realize the effect of stress buffering, thereby effectively avoid damaging the detector due to the impact force is too big, further reach the effect of prolonging the service life of fire detector.

[0031] Example two

[0032] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , on the basis of according to example one, increase the function of automatic cleaning;

[0033] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , it is worth noting that the smoke temperature composite detector 1 lower side is provided with rotation slot 15, and the protection frame 9 is provided with a connecting structure, the connecting structure includes two driving frames 10, the middle part of the two driving frames 10 is provided with an inclined slot 11, the inner wall of the two inclined slots 11 is slidably connected with a connecting rod 12, the near end of the two connecting rods 12 is fixedly connected with a cleaning frame 13, and the middle part of the cleaning frame 13 is provided with a plurality of through grooves 14.

[0034] Please refer again to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , it is worth noting that the two drive frame 10 lower end fixed in the protection frame 9 both sides, two chute 11 through the middle of the two drive frame 10, two chute 11 is opposite to open, two connecting rod 12 outer surface sliding connection in two chute 11 inner wall, two connecting rod 12 near the end fixed in the cleaning frame 13 both sides, cleaning frame 13 inner wall rotationally connected in the rotation slot 15 inner wall, cleaning frame 13 vertical section is L shaped setting, cleaning frame 13 inner wall rotationally connected in the smoke temperature composite detector 1 outer surface, a plurality of through groove 14 through in the middle of the cleaning frame 13.

[0035] The utility model discloses in using time: through the knock and lead to the protection frame 9 up, because the protection frame 9 both sides and drive frame 10 fixed connection, drive frame 10 also can be synchronous up. Two up drive frame 10, the middle part is provided with chute 11, up in the process, chute 11 can extrude connecting rod 12,

[0036] Extruded connecting rod 12, will drive the cleaning frame 13 action fixedly connected with its near one end. The smoke temperature composite detector 1 lower side is provided with rotation slot 15, under the limiting action of rotation slot 15, cleaning frame 13 can only carry out rotation operation. With the rotation of cleaning frame 13, the plurality of through groove 14 provided on its upper surface will play a role, and the dust and impurities accumulated outside the detection hole 2 are scraped off. The dust and impurities scraped off will fall from the through groove 14, realizing the effect of automatic cleaning, so that the staff need not clean manually, greatly facilitates the use of the detector, and the automatic cleaning process can be triggered naturally in the daily knock, providing a strong guarantee for the long-term stable operation of the detector.

[0037] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The skilled person in the art should understand that the utility model is not limited to the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model can have various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A combined fire detector comprising a smoke-temperature combined detector (1), characterized in that: The smoke temperature composite detector (1) is provided with a plurality of detection holes (2) in the middle, both sides of the smoke temperature composite detector (1) are fixedly provided with fixed frames (3), both the middle of the two fixed frames (3) are provided with frame grooves (4), both the inner walls of the two frame grooves (4) are slidably connected with sliding plates (5), both sides of the two sliding plates (5) are fixedly provided with springs (6), both the lower ends of the two sliding plates (5) are rotatably connected with connecting frames (7), both the other ends of the two connecting frames (7) are rotatably connected with connecting blocks (8), and the lower ends of the two connecting blocks (8) are fixedly provided with protection frames (9). The lower side of the smoke temperature composite detector (1) is provided with a rotating groove (15), the protection frame (9) is provided with a connecting structure, and the connecting structure is provided with a cleaning frame (13); the connecting structure can rotate around the center axis of the rotating groove (15) with the cleaning frame (13), so as to scrape and clean the dust and impurities blocked outside the detection hole (2).

2. A combined fire detector according to claim 1, characterised in that: The connecting structure comprises two driving frames (10), the middle of each of the two driving frames (10) is provided with an inclined groove (11), the inner wall of each of the two inclined grooves (11) is slidably connected with a connecting rod (12), and the proximal end of each of the two connecting rods (12) is fixedly provided with a cleaning frame (13).

3. A combined fire detector according to claim 2, wherein: The lower end of each of the two driving frames (10) is fixed to the two sides of the protection frame (9), the two inclined grooves (11) are arranged in the middle of the two driving frames (10), and the two inclined grooves (11) are oppositely arranged.

4. The combination fire detector of claim 2 wherein: The proximal end of each of the two connecting rods (12) is fixed to the two sides of the cleaning frame (13), the inner wall of the cleaning frame (13) is rotatably connected to the inner wall of the rotating groove (15), the vertical section of the cleaning frame (13) is L-shaped, the inner wall of the cleaning frame (13) is rotatably connected to the outer surface of the smoke temperature composite detector (1), and the plurality of through grooves (14) are arranged in the middle of the cleaning frame (13).

5. The combination fire detector of claim 1 wherein: The upper side of each of the two fixed frames (3) is fixed to the two sides of the smoke temperature composite detector (1), the two frame grooves (4) are arranged in the middle of the two fixed frames (3), and the outer surface of each of the two sliding plates (5) is slidably connected to the inner wall of each of the two frame grooves (4).

6. The combination fire detector of claim 1 wherein: The proximal end of each of the two springs (6) is fixed to the side away from each of the two sliding plates (5), the distal end of each of the two springs (6) is fixed to the inner wall of the side away from each of the two frame grooves (4), the distal end of each of the two connecting frames (7) is rotatably connected to the lower end of each of the two sliding plates (5), the proximal end of each of the two connecting frames (7) is rotatably connected to the upper end of each of the two connecting blocks (8), and the lower end of each of the two connecting blocks (8) is fixed to the two sides of the protection frame (9).

7. The combination fire detector of claim 1 wherein: Both sides of the smoke temperature composite detector (1) are fixedly provided with mounting frames (16), and the middle of each of the two mounting frames (16) is provided with a reserved hole (17).

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