CN116229667B

CN116229667B - Fireproof alarm device

Info

Publication number: CN116229667B
Application number: CN202310509320.9A
Authority: CN
Inventors: 张琳; 郑晓松; 朱召献; 尤明伟; 郑仪凤
Original assignee: Individual
Current assignee: Zhang Lin
Priority date: 2023-05-08
Filing date: 2023-05-08
Publication date: 2023-08-22
Anticipated expiration: 2043-05-08
Also published as: CN116229667A

Abstract

The invention relates to the field of fire alarm, in particular to a fire alarm device, which structurally comprises: the positioning bottom shell is nested and buckled with the first protective shell; the second protective shell that first protective shell upwards extends and supports still is equipped with the control portion in addition to first protective shell, monitoring module still is equipped with at the middle part of control portion, monitoring module installs in the center of first protective shell, and run through first protective shell and second protective shell center through the groove in proper order, monitoring module includes the driver, the driver main shaft extends along axial direction and is fixed with the screw thread post, screw thread post rotation drive camera along axial motion after the driver starts, the camera gomphosis is at the inside groove of registrating the post, and pass through the recess cooperation at registrate post and first protective shell and second protective shell center, beneficial effect: the invention aims to design a smoke alarm capable of quickly alarming and accurately positioning, which not only can solve the problem of unified management, but also can avoid privacy leakage.

Description

Fireproof alarm device

Technical Field

The invention relates to a fireproof alarm device, and belongs to the field of fire alarm.

Background

The fire alarm device is a device for identifying fire and giving an alarm in time, and is generally composed of a plurality of components, including a temperature sensor, a smoke sensor, a host computer, a sound and flash alarm and the like, and can detect temperature, smoke and other information in the environment and trigger the sound and flash alarm to remind people to take measures to avoid fire diffusion.

The smoke alarm belongs to a fire alarm system, can rapidly detect smoke and send out an acousto-optic signal to warn people to escape, can be installed indoors, can perform point-to-point monitoring on areas with more interlayers, and is suitable for families to place each bedroom and hall for detection.

Although the smoke alarm can timely sense the surrounding smoke, the fire source cannot be directly positioned, and the smoke alarm can be matched with the camera to solve the problem, most people are conflicted to install the fireproof detection camera in a private area due to the privacy problem, so that the fire detection camera cannot be uniformly managed.

Therefore, the invention aims to design the smoke alarm capable of quickly alarming and accurately positioning, so that the problem of unified management can be solved, and the leakage of privacy can be avoided.

Disclosure of Invention

Aiming at the defects existing in the prior art, the invention aims to provide a fireproof alarm device so as to solve the problems that although a smoke alarm can timely sense surrounding smoke, a fire source cannot be directly positioned, and most people are conflicted to install a fireproof detection camera in a private area due to privacy problems and cannot uniformly manage the fireproof detection camera in combination with the smoke alarm.

In order to achieve the above object, the present invention is realized by the following technical scheme: a fire alarm device, the structure of which comprises: the positioning bottom shell is nested and buckled with the first protective shell; there is the second protecting crust that first protecting crust upwards extends the support, the inside control portion that still is equipped with of first protecting crust, monitoring module still is equipped with at the middle part of control portion, monitoring module installs in the center of first protecting crust to run through first protecting crust and second protecting crust center in proper order and lead to the groove, monitoring module includes the driver, and the driver main shaft extends along axial direction and is fixed with the screw thread post, screw thread post rotation drive camera along axial motion after the driver starts, the camera gomphosis is in the inside groove of registrating the post to lead to the groove through registrating post and first protecting crust and second protecting crust center and cooperate, the second protecting crust is equipped with protruding edge, protruding edge and the camera terminal surface parallel and level after the shrink.

Preferably, the fit column and the first protective shell and the second protective shell are smooth surfaces with a clearance smaller than 1mm, the inner surface is provided with a bulge matched with a sliding groove axially formed in the outer surface of the sleeve shaft, the diameter of the fit column inner groove is larger than that of the outer surface of the sleeve shaft, and the clearance between the fit column and the second protective shell is 1mm-3mm.

Preferably, the folding cavity of the camera is used as a protective shell of the image acquisition module, the folding cavity is movably connected with the sleeve shaft through a limiting cross rod, an internal thread matched with the threaded column is arranged inside the sleeve shaft, and the forward and reverse rotation of the threaded column can control the sleeve shaft to drive the folding cavity to move up and down along the axial direction.

Preferably, the limiting cross rod deviates from the diameter of the folding cavity, so that the gravity centers of the folding cavity and the blocking cover are positioned at the front end of the acquisition surface of the image acquisition module.

Preferably, the blocking cover is provided with an annular groove, the annular groove is positioned at the lens of the image acquisition module to be disconnected, the diameter of the blocking cover is larger than that of the through grooves in the centers of the first protective shell and the second protective shell, and when the control sleeve shaft drives the folding cavity to retract along the shaft, the blocking cover is contacted with the second protective shell until the convex edge of the blocking cover is attached to the plane of the second protective shell, and the retraction motion is stopped.

Preferably, the two sides of the limiting cross rod are provided with fastener matching grooves, the middle ring surface is provided with convex teeth extending outwards along the radial direction, and the convex teeth are matched with the inner grooves of the folding cavity to limit the stroke of the lower hem of the folding cavity.

Preferably, the main board of the control part is provided with a network port externally connected with the internet, a wireless communication module for external communication, a standby power supply for emergency power supply and an external voice alarm unit respectively, the auxiliary lamp ring of the main board is arranged in the ring groove on the surface of the second protective shell, the auxiliary lamp ring and the driver are connected in series to form a loop, and the auxiliary lamp ring is lighted after the driver is electrified.

Preferably, the inner groove of the first protective shell is also nested with an inner flue, and the inner flue is nested and fixed with the sensor of the control part.

Preferably, the main shaft of the driver is of a penetrating structure, a guide groove for fixing an interface wire of the image acquisition module is arranged in a through groove of the shaft body, the guide groove is limited by a locating frame and a transverse plate, and the locating frame is nested on the surface of a shell of the driver.

Preferably, the network port of the external internet is a POE interface, so that the main board can be directly powered, and the installation is more convenient.

Preferably, the driver is a hollow shaft stepping motor, so that a wire of the image acquisition module can conveniently pass through the hollow shaft stepping motor, and further, the wire harness is prevented from winding, and the whole structure is more compact.

The invention has the beneficial effects that:

the fireproof alarm device has the following effects: the alarm signal is processed through the optimized equipment in a double signal transmission mode, the wired network transmission powered by POE is the main part, and once the wireless communication module is switched to perform auxiliary transmission in case of failure, the stability of alarm detection and timely feedback is greatly improved.

And set up the camera that is used for assisting observing the condition of a fire, the camera passes through its reciprocates of driver control and pivot rotation, fold through keeping off the lid when being in shrinkage state, can make things convenient for it to hide, and utilize the focus skew of keeping off the lid can be around the every single move angle of spacing horizontal pole rotatory change image acquisition module after the decline, 360 rotatory observation is carried out, and visual scope is bigger overall structure is compacter convenient, and has avoided privacy to reveal greatly through the shielding of keeping off the lid.

Drawings

Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:

fig. 1 is a schematic structural view of a fire alarm device according to the present invention.

FIG. 2 is a schematic view of the structure of the inside of the first protective shell according to the present invention.

Fig. 3 is a schematic plan view of the control unit of the present invention.

Fig. 4 is a schematic structural diagram of the monitoring module of the present invention.

Fig. 5 is a schematic cross-sectional view of a camera according to the present invention.

Fig. 6 is a schematic cross-sectional structure of the terminal of the present invention.

Fig. 7 is a schematic diagram of the present invention in a monitoring state.

Fig. 8 is an exploded view of the structure of the present invention.

Fig. 9 is a schematic flow chart of the signal processing of the present invention.

In the figure: the alarm device comprises an alarm device-10, a first protective shell-20, a second protective shell-30 and a positioning bottom shell-40; the device comprises a control part-11, a monitoring module-12 and an inner flue-13; the device comprises a main board-111, a network port-112, a wireless communication module-113, a standby power supply-114, an external unit-115 and an auxiliary lamp ring-116; the camera comprises a camera head-121, a sleeving column-122, a threaded column-123, a driver-124 and a lead column-125; the device comprises a retaining cover-1211, a folding cavity-1212, an image acquisition module-1213, a limit cross rod-1214 and a sleeve shaft-1215; cross plate-1251, guide slot-1252, and retainer-1253.

Detailed Description

The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.

In order to solve the problems that although the smoke alarm can timely sense the surrounding smoke, the fire source cannot be directly positioned, and the smoke alarm can be matched with the camera to solve the problem, most people contradict the privacy problem, and the fireproof detection camera is installed in a private area, so that the problem that the fire detection camera cannot be uniformly managed is solved:

referring to fig. 1 to 8, the present invention provides a technical solution for a fire alarm device: the structure comprises: the first protective shell 20 and the positioning bottom shell 40 nested and buckled with the first protective shell 20; the first protective shell 20 is provided with a second protective shell 30 which extends upwards to support, a control part 11 is arranged in the first protective shell 20, a monitoring module 12 is arranged in the middle of the control part 11, and the monitoring module 12 is arranged in the center of the first protective shell 20 and penetrates through the center through grooves of the first protective shell 20 and the second protective shell 30 in sequence; the monitoring module 12 comprises a driver 124, a threaded column 123 is fixedly extended along the axial direction of a main shaft of the driver 124, the driver 124 is started, the threaded column 123 rotates to drive the camera 121 to move along the axial direction, the camera 121 is embedded in an inner groove of the sleeve column 122 and is matched with the first protective shell 20 and a central through groove of the second protective shell 30 through the sleeve column 122, the second protective shell 30 is provided with a convex edge, and the convex edge is flush with the end face of the camera 121 after shrinkage.

When the positioning bottom shell 40 is installed, the positioning bottom shell is fixed on a ceiling, and then the control part 11 is installed in the first protective shell 20, so that the positioning bottom shell is fixed in a separated mode, and wiring is facilitated. The main board 111 of the control part 11 is provided with a network port 112 externally connected with the internet, and a POE interface is adopted, so that the main board 111 can be directly powered, and the specific standard POE power supply voltage is set at 48V, so that a steady-flow voltage reduction module is further arranged on the main board 111 to convert a power supply into 12V to supply power for the monitoring module 12 and the emergency power supply 114 for emergency power supply.

The wireless communication module 113 for external communication is arranged on the main board 111, the wireless communication module 113 is arranged on the main board 111, a GSM module is specifically adopted, a network card is arranged in the wireless communication module 113, alarm transmission is carried out in a remote signal transmission mode, safety is improved, when an external unit 115 for voice alarm sounds after an alarm condition is triggered, an auxiliary lamp ring 116 is installed in a ring groove on the surface of the second protective shell 30 to be on, the auxiliary lamp ring 116 is connected with a driver 124 in series to form a loop, the auxiliary lamp ring 116 is on, the driver 124 is powered on and synchronously works, the image acquisition module 1213 can be prevented from being maliciously used in a linkage mode, and an acousto-optic warning can be formed once the alarm is triggered.

The smoke alarm is mainly aimed at, an inner groove of the first protective shell 20 is further embedded with an inner flue 13, the inner flue 13 is embedded and fixed with a sensor of the control part 11, and after smoke enters the inner flue, infrared radiation in the sensor is blocked, so that an alarm signal is generated and transmitted.

Referring to fig. 9, fig. 9 is a flow chart of signal transmission, and a specific signal processing flow is as follows,

when a fire condition occurs and an alarm signal is generated, the signal is transmitted through a network port, and the time is divided into two conditions:

in the first case, the normal main control room for signal transmission receives the signal and controls the monitoring module 12 to work in a specific working mode which will be described later, the position of the fire source is searched through the image acquisition module 1213, and meanwhile, the spraying device is started, and whether the fire department needs to be informed to extinguish the fire is judged according to the fire;

in the second case, when the network port transmission signal fails and the network port power supply fails, the main board 111 supplies power through the standby power supply 114, meanwhile, the signal transmission mode is converted into the GSM module to carry out external base station communication, the alarm information can be directly pushed to the APP, or reminding is carried out through a mode of short message and dialing telephone, meanwhile, the detection module 12 automatically works, the image acquisition module 1213 is controlled to carry out 360-degree photographing, because the power of battery power supply is limited, the power supply of the opposite network cable can be converted into a photographing mode through a mode of real-time video observation, the image acquisition module 1213 enters dormancy after photographing, the use duration can be improved, the photographing is sent to the server, the server is directly pushed to the APP for warning, or accessories are sent through a mode of short message, the accessory mode can directly adopt the multimedia message, and the information transmission efficiency can be improved through direct checking of the link.

The above-mentioned monitoring module 12 works as follows:

the main component of the monitoring module 12 is provided with a camera 121, a folding cavity 1212 of the camera 121 is used as a protective shell of an image acquisition module 1213, the folding cavity 1212 rotates around a shaft through a limit cross rod 1214 and a sleeve shaft 1215, the limit cross rod 1214 deviates from the diameter of the folding cavity 1212, the gravity centers of the folding cavity 1212 and a baffle cover 1211 are positioned at the front end of the acquisition surface of the image acquisition module 1213, bolt matching grooves are formed in two sides of the limit cross rod 1214, convex teeth extend outwards in the radial direction on the middle annular surface, and the convex teeth are matched with the inner groove of the folding cavity 1212 to limit the lower swing stroke of the folding cavity 1212.

The specific image acquisition module 1213 is a miniature monitor, has a small structure, is convenient to install, only acquires images, does not pick up the interior, and avoids being invaded and monitored.

The limiting cross rod 1214 is pre-installed in the folding cavity 1212, then is nested in the movable ear of the sleeve shaft 1215, and is locked by the bolt, so that the direction of the convex teeth can be controlled by loosening the bolt, and the view angle of the camera 121 can be changed, so that the adjustable purpose is that the projection range of the camera can be changed after installation due to different sizes of houses, and when the room is smaller, the angle of the lower hem of the camera 121 needs to be increased so as to be capable of observing the panoramic view of the room in one circle.

The monitoring module 12 is driven only through one driver 124, the structure is compact, the driver 124 is a hollow shaft stepping motor, a lead wire of the image acquisition module 1213 can conveniently pass through, a guide groove 1252 is arranged in a through groove of a shaft body, the guide groove 1252 is limited by a locating rack 1253 and a transverse plate 1251, the locating rack 1253 is nested on the surface of a shell of the driver 124 and locked by a screw, the guide groove 1252 isolates a wire harness of the image acquisition module 1213 from a main shaft of the driver, the wire harness friction is avoided, the resistance is reduced, and the damage to speed limitation caused by excessive winding can be avoided.

Referring to fig. 7, the driver 124 drives the threaded post 123 to rotate clockwise and counter-rotate, the sleeve shaft 1215 is pushed out when the threaded post 123 rotates clockwise, and the folding cavity 1212 at the bottom and the gravity center of the blocking cover 1211 are located at the front end of the collecting surface of the image collecting module 1213, when pushed out, the blocking cover 1211 is separated from the second protecting shell 30, the thrust force on the light side of the blocking cover 1211 disappears, and the blocking cover 1211 swings downwards, so that the view of the image collecting module 1213 rotates from the horizontal direction to the bottom around the limiting cross rod 1214, and irradiates the ground.

When the angle of the image acquisition module 1213 changes, the surrounding work is needed, the sleeve column 122 is mainly used for being matched with the central through grooves of the first protective shell 20 and the second protective shell 30, the difference between the diameters of the sleeve column 122 and the central through grooves is smaller, certain friction force can be achieved, the protrusions on the inner surface are matched with the sliding grooves formed in the outer surface of the sleeve shaft 1215 along the axial direction, the resistance of the protrusions on the inner surface is different in two directions, the resistance of the protrusions matched with the central through grooves is larger, the resistance of the sliding grooves formed in the axial direction is smaller due to the difference between the two directions, so that the sleeve column 122 cannot rotate under the action of radial friction force at first, and the internal threads of the sleeve shaft 1215 can be matched with the threaded column 123 through the protrusions on the inner surface, and the action of up-down movement is completed.

After the sleeve 1215 and threaded post 123 are stroked to the end, the driver 123 is still continuously rotated, at which point the sleeve 1215 and threaded post 123 are no longer axially moved relative to each other, but are at rest. The sleeve shaft 1215 and the threaded column 123 form a new shaft body, and the protrusion on the inner surface is matched with the sliding groove of the sleeve shaft 1215 to drive the sleeve column 122 to rotate, and meanwhile, the folding cavity 1212 drives the image acquisition module 1213 to rotate for 360 degrees to observe and photograph.

When the alarm condition is reset after processing, the driver 123 reverses the threaded column 123 to enable the sleeve shaft 1215 to shrink, and the sleeve shaft is shrunk to enable the blocking cover 1211 to be in contact with the second protective shell 30 until the convex edge of the blocking cover 1211 is attached to the plane of the second protective shell 30, the retracting action is stopped, meanwhile, the visual field of the image acquisition module 1213 is also returned to the horizontal level, and the image acquisition module 1213 is embedded into the convex edge of the second protective shell 30, so that the situation that people perform daily monitoring in the background is avoided.

In order to further improve privacy security, the control priority of the driver 124 is locally set, that is, the detection unit of the main board 11 mainly triggers, the main board 11 judges that the driving circuit signal of the driver 123 enters an alarm state, the auxiliary lamp ring 116 and the driver 124 are connected in series to form a loop, the auxiliary lamp ring 116 is also turned on after the driver 124 is electrified, and the external unit 115 with voice alarm also sounds, so that the remote control can be avoided.

The foregoing has described only the basic principles and preferred embodiments of the present invention, and many variations and modifications will be apparent to those skilled in the art in light of the above description, which variations and modifications are intended to be included within the scope of the present invention.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. A fire alarm device, the structure of which comprises: the first protective shell (20) and a positioning bottom shell (40) which is nested and buckled with the first protective shell (20); there is also a second protective shell (30) supported by the first protective shell (20) extending upwards, and a control part (11) is also arranged in the first protective shell (20), and is characterized in that: the middle part of the control part (11) is also provided with a monitoring module (12), and the monitoring module (12) is arranged at the center of the first protective shell (20) and penetrates through the center through grooves of the first protective shell (20) and the second protective shell (30) in sequence;

the monitoring module (12) comprises a driver (124), a threaded column (123) is fixedly arranged on a main shaft of the driver (124) in an extending mode along the axial direction, the threaded column (123) rotates to drive a camera (121) to move along the axial direction after the driver (124) is started, the camera (121) is embedded into an inner groove of a sleeving column (122) and is matched with central through grooves of a first protective shell (20) and a second protective shell (30) through the sleeving column (122), and the second protective shell (30) is provided with a convex edge which is flush with the end face of the retracted camera (121);

the folding cavity (1212) of the camera (121) is used as a protective shell of the image acquisition module (1213), the folding cavity (1212) is movably connected with the sleeve shaft (1215) through the limiting cross rod (1214), an internal thread matched with the threaded column (123) is arranged in the sleeve shaft (1215), and the forward and backward rotation of the threaded column (123) can control the sleeve shaft (1215) to drive the folding cavity (1212) to move up and down along the axial direction;

the limiting cross rod (1214) deviates from the diameter of the folding cavity (1212), so that the gravity centers of the folding cavity (1212) and the baffle cover (1211) are positioned at the front end of the acquisition surface of the image acquisition module (1213);

the two sides of the limit cross rod (1214) are provided with fastener matching grooves, the middle ring surface extends outwards along the radial direction to form convex teeth, and the convex teeth are matched with the inner grooves of the folding cavity (1212) to limit the stroke of the lower hem of the folding cavity (1212).

2. A fire alarm device as defined in claim 1, wherein: the matching surfaces of the sleeve column (122) and the central through grooves of the first protective shell (20) and the second protective shell (30) are smooth surfaces, the clearance between the two surfaces is smaller than 1mm, the inner surface is provided with a bulge which is matched with a sliding groove which is arranged on the outer surface of the sleeve shaft (1215) along the axial direction, the diameter of the inner groove of the sleeve column (122) is larger than the diameter of the outer surface of the sleeve shaft (1215), and the clearance between the inner groove and the sleeve shaft is 1mm-3mm.

3. A fire alarm device as defined in claim 1, wherein: the blocking cover (1211) is provided with a ring groove, the ring groove is positioned at the lens of the image acquisition module (1213) and is disconnected, the diameter of the blocking cover (1211) is larger than the diameters of the through grooves in the centers of the first protective shell (20) and the second protective shell (30), and when the control sleeve shaft (1215) drives the folding cavity (1212) to retract along the shaft, the blocking cover (1211) is contacted with the second protective shell (30) until the convex edge of the blocking cover (1211) is attached to the plane of the second protective shell (30), and the retraction action is stopped.

4. A fire alarm device as defined in claim 1, wherein: the main board (111) of the control part (11) is provided with a network port (112) externally connected with the Internet, a wireless communication module (113) for external communication, a standby power supply (114) for emergency power supply and an external discharge unit (115) for voice alarm respectively, an auxiliary lamp ring (116) of the main board (111) is arranged in a ring groove on the surface of the second protective shell (30), the auxiliary lamp ring (116) and the driver (124) are connected in series to form a loop, and the auxiliary lamp ring (116) is lightened after the driver (124) is electrified.

5. A fire alarm device as defined in claim 1, wherein: the inner groove of the first protective shell (20) is also nested with an inner flue (13), and the inner flue (13) is nested and fixed with the sensor of the control part (11).

6. A fire alarm device as defined in claim 1, wherein: the main shaft of driver (124) is run through structure, is equipped with guide slot (1252) of the interface wire of fixed image acquisition module (1213) in the axis body logical inslot, and guide slot (1252) is spacing through locating rack (1253) and diaphragm (1251), locating rack (1253) nestification is at the casing surface of driver (124).