CN212782241U - Photoelectric smoke-sensing fire detection alarm - Google Patents
Photoelectric smoke-sensing fire detection alarm Download PDFInfo
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- CN212782241U CN212782241U CN202021820181.XU CN202021820181U CN212782241U CN 212782241 U CN212782241 U CN 212782241U CN 202021820181 U CN202021820181 U CN 202021820181U CN 212782241 U CN212782241 U CN 212782241U
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Abstract
The utility model discloses a photoelectric smoke-sensing fire detection alarm, which comprises a battery bin, a bracket, a buzzer set, a stop block and a torsional spring, wherein the battery bin is arranged on the bottom shell in an upward protruding manner, one side of the battery bin, which is close to the edge of the bottom shell, is provided with an opening, one end of the torsional spring is connected with the stop block, the other end of the torsional spring is connected with the bottom shell, and the bottom shell is provided with a baffle plate; the bottom shell is provided with a support rod and an inverted buckle rod, the height of the support rod is equal to that of the battery compartment, the PCB is positioned on the support rod and the battery compartment, and the PCB is buckled and fixed by the inverted buckle rod; the support is arranged on the bottom shell, the buzzer external member is arranged on the support and electrically connected with the PCB, and the middle part of the buzzer external member is pressed by the PCB. The utility model discloses a structure is very compact, directly establishes integrated into one piece's battery compartment with the drain pan is protruding, and the PCB board sets up on the battery compartment to it is fixed with bracing piece and back-off pole, and the structure is very stable, the quick assembly disassembly of being convenient for, dustproof design improves the precision.
Description
Technical Field
The utility model relates to an alarm field especially relates to a fire detection alarm is felt to photoelectricity cigarette.
Background
In the prior art, along with the development of society, buildings are more and more constructed and more concentrated, once a fire disaster occurs, great personnel and property loss is probably brought to people, and therefore, the installation of a fire detection alarm device is necessary in many scenes. However, fire detection alarms in the general market are complex in design, high in cost, low in precision and difficult to use.
Accordingly, the prior art is deficient and needs improvement.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the photoelectric smoke-sensing fire detection alarm has the advantages of simple and compact structure, low cost, high precision and convenience in use.
The technical scheme of the utility model as follows: a photoelectric smoke-sensing fire detection alarm comprises an upper shell cover, a bottom shell, a bottom cover, a key shell, a light guide column, a labyrinth and a PCB (printed Circuit Board), wherein the upper shell cover, the bottom shell, the key shell and the light guide column form a packaging space, the PCB is arranged on the bottom shell, the labyrinth is arranged on the PCB, the bottom of the key shell is connected with the PCB, the top of the key shell protrudes out of the upper shell cover, the bottom of the light guide column is positioned above a luminous body of the PCB, the top of the light guide column protrudes out of the upper shell cover, the bottom cover is connected with the bottom of the bottom shell,
the battery compartment and the bottom shell are integrally formed, a battery is arranged in the battery compartment, one side of the battery compartment, which is close to the edge of the bottom shell, is provided with an opening, a fixing column is arranged on the bottom shell, the torsion spring is sleeved on the fixing column, one end of the torsion spring is connected with the stop block, the other end of the torsion spring is connected with the bottom shell, the end part of the stop block is positioned in the opening position of the battery compartment, a baffle plate is arranged on the bottom cover, and the baffle plate is positioned below the stop block;
the bottom shell is also provided with a support rod and a plurality of back-off rods, the height of the support rod is equal to that of the battery compartment, the PCB is positioned on the support rod and the battery compartment, and the PCB is buckled and fixed by the back-off rods; the support is arranged on the bottom shell, the buzzer external member is arranged on the support and electrically connected with the PCB, and the middle part of the buzzer external member is pressed by the PCB.
Adopt above-mentioned technical scheme, photoelectric smoke sense fire detection alarm in, still include the EVA gasket, the EVA gasket is located the maze top.
By adopting the technical scheme, the photoelectric smoke-sensing fire detection alarm further comprises a dustproof net, and the dustproof net is positioned around the labyrinth.
By adopting the technical scheme, in the photoelectric smoke-sensing fire detection alarm, the edge of the bottom shell is also provided with a plurality of first L-shaped buckles, and the inner wall of the upper cover of the shell is provided with a plurality of clamping grooves matched with the first L-shaped buckles.
By adopting the technical scheme, in the photoelectric smoke-sensing fire detection alarm, the edge of the bottom cover is also provided with a plurality of second L-shaped buckles, the edge of the bottom shell is provided with a plurality of clamping hole grooves matched with the second L-shaped buckles, and the clamping hole grooves are positioned above the second L-shaped buckles; the second L-shaped buckle is provided with a groove, a protruding strip is arranged in the clamping hole groove, and the groove is matched with the protruding strip.
By adopting the technical proposal, the utility model has very compact structure, the integrally formed battery bin is directly arranged on the bottom shell in a protruding way, the PCB is arranged on the battery bin and is fixed by the support rod and the back-off rod, the structure is very stable, and the quick assembly and disassembly are convenient; the bottom shell is connected with the upper cover of the shell and the bottom cover is connected with the bottom shell through L-shaped buckles, so that the assembly and disassembly are very quick, the structure is stable, and the screw fixation is not needed; the dustproof setting of maze improves the precision.
Drawings
Fig. 1 is a schematic diagram of the explosion structure of the present invention;
FIG. 2 is a schematic view of the lower half structure of the present invention;
fig. 3 is a schematic view of the upper cover of the housing of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
As in fig. 1-3, this embodiment provides a fire detection alarm is felt to photoelectricity cigarette, including shell upper cover 1, drain pan 12, bottom 14, key shell 3, leaded light post 4, maze 5 and PCB board 7, shell upper cover 1, drain pan 12, key shell 3 and leaded light post 4 form an encapsulation space, PCB board 7 is located on drain pan 12, maze 5 is located on PCB board 7, be connected with PCB board 7 bottom key shell 3, the top protrusion of key shell 3 is on shell upper cover 1, leaded light post 4 bottom is located PCB board 7's luminous body top, the top protrusion of leaded light post 4 is on shell upper cover 1, bottom 14 is connected with the bottom of drain pan 12. The casing upper cover 1, the drain pan 12, the bottom 14, press key shell 3, leaded light post 4, maze 5 and PCB board 7 are prior art, and wherein PCB board 7 still integrates smog detection circuitry, bee calling organ drive circuit, LED drive circuit and 433MHZ wireless transmitting circuit, owing to be prior art's integration, do not do too much redundantly in this embodiment.
As shown in fig. 1 and 2, in addition to the above prior art, in this embodiment, in order to make the whole structure simple and compact for easy assembly and disassembly, a battery compartment 121, a bracket 9, a buzzer kit 8, a stopper 10, and a torsion spring 11 are further provided, the bottom case 12 is provided with the battery compartment 121 protruding upwards, and the battery compartment 121 and the bottom case 12 are integrally formed. The battery compartment 121 is provided with a battery 13, the battery compartment 121 is close to an opening at one side of the edge of the bottom case 12, the bottom case 12 is provided with a fixing column, the torsion spring 11 is sleeved on the fixing column, one end of the torsion spring 11 is connected with the stopper 10, the other end of the torsion spring 11 is connected with the bottom case 12, the end part of the stopper 10 is located in the opening position of the battery compartment 121, the bottom cover 14 is provided with a baffle 141, and the baffle 141 is located below the stopper 10. When the battery is not installed, the stopper 10 is rotated to the opening position of the battery compartment 121 by the torsion spring 11, and the end of the stopper 10 is just above the baffle 141, so that the bottom cover 14 and the bottom case 12 cannot be assembled. Only when the battery 13 is assembled and the stopper 10 is pushed aside by the battery 13, the end of the stopper 10 is not stopped by the stopper 141, and the bottom cover 14 and the bottom case 12 can be smoothly assembled. The stopper 10 and the torsion spring 11 in this embodiment are simple and stable in structure and convenient to disassemble and assemble.
As shown in fig. 1 and fig. 2, a support rod and a plurality of inverted buckle rods 125 are further disposed on the bottom case 12, the height of the support rod is equal to the height of the battery compartment 121, the PCB 7 is disposed on the support rod and the battery compartment 121, and the PCB 7 is buckled and fixed by the inverted buckle rods 125; the support 9 is arranged on the bottom shell 12, the buzzer external member 8 is arranged on the support 9, the buzzer external member 8 is electrically connected with the PCB 7, and the PCB 7 presses the middle part of the buzzer external member 8.
The PCB 7 of the present embodiment does not need too many screws, and the edge of the PCB 7 is buckled by the buckle bar 125, so that the PCB 7 can be stably fixed on the bottom case 12. It should be noted that the connection relationship between the PCB 7 and the battery 13 is that electrode elastic pieces are actually arranged at two ends of the battery compartment 121, and the battery 13 is connected with the PCB 7 through the electrode elastic pieces.
Preferably, as shown in fig. 1, the labyrinth further comprises an EVA gasket 3, wherein the EVA gasket 3 is positioned on the top of the labyrinth 5 to prevent the labyrinth 5 from loosening. Meanwhile, in order to prevent dust, and to improve accuracy, a dust screen 6 is further provided, and the dust screen 6 is located around the labyrinth 5.
Preferably, as shown in fig. 1 to 3, the bottom case 12 is assembled by a vertical buckling manner, the edge of the bottom case 12 is further provided with a plurality of first L-shaped buckles 122, and the inner wall of the housing upper cover 1 is provided with a plurality of slots 12 adapted to the first L-shaped buckles 122. The edge of the bottom cover 14 is further provided with a plurality of second L-shaped fasteners 142, the edge of the bottom cover 12 is provided with a plurality of card hole grooves 123 adapted to the second L-shaped fasteners 142, and the card hole grooves 123 are located above the second L-shaped fasteners 142; the second L-shaped buckle 142 is provided with a groove 1421, the bayonet groove 123 is provided with a protruding strip 1231, and the groove 1421 is matched with the protruding strip 1231, so as to ensure the stability of the assembly of the bottom case 12 and the bottom cover 14. The bottom shell 12 is provided with two positioning columns 124, the positioning columns 124 are provided with positioning holes, the shell upper cover 1 is provided with two positioning rods 11, and the positioning rods 11 are located in the positioning holes, so that assembly is guaranteed not to be misplaced, and assembly efficiency is improved.
By adopting the technical proposal, the utility model has very compact structure, the integrally formed battery bin is directly arranged on the bottom shell in a protruding way, the PCB is arranged on the battery bin and is fixed by the support rod and the back-off rod, the structure is very stable, and the quick assembly and disassembly are convenient; the bottom shell is connected with the upper cover of the shell and the bottom cover is connected with the bottom shell through the L-shaped buckles, so that the dismounting is very quick, the structure is stable, and the screw fixation is not needed. Of course, it should be noted that, in this embodiment, a screw hole is actually reserved, but the screw fixation is not the optimal choice of this embodiment, and only when the screw is needed to further fix the whole structure, the screw fixation is considered. The dustproof setting of maze improves the precision.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. A photoelectric smoke-sensing fire detection alarm comprises an upper shell cover, a bottom shell, a bottom cover, a key shell, a light guide column, a labyrinth and a PCB (printed Circuit Board), wherein the upper shell cover, the bottom shell, the key shell and the light guide column form a packaging space, the PCB is arranged on the bottom shell, the labyrinth is arranged on the PCB, the bottom of the key shell is connected with the PCB, the top of the key shell protrudes out of the upper shell cover, the bottom of the light guide column is arranged above a luminous body of the PCB, the top of the light guide column protrudes out of the upper shell cover, and the bottom cover is connected with the bottom of the bottom shell,
the battery compartment and the bottom shell are integrally formed, a battery is arranged in the battery compartment, one side of the battery compartment, which is close to the edge of the bottom shell, is provided with an opening, a fixing column is arranged on the bottom shell, the torsion spring is sleeved on the fixing column, one end of the torsion spring is connected with the stop block, the other end of the torsion spring is connected with the bottom shell, the end part of the stop block is positioned in the opening position of the battery compartment, a baffle plate is arranged on the bottom cover, and the baffle plate is positioned below the stop block;
the bottom shell is also provided with a support rod and a plurality of back-off rods, the height of the support rod is equal to that of the battery compartment, the PCB is positioned on the support rod and the battery compartment, and the PCB is buckled and fixed by the back-off rods; the support is arranged on the bottom shell, the buzzer external member is arranged on the support and electrically connected with the PCB, and the middle part of the buzzer external member is pressed by the PCB.
2. The photoelectric smoke-sensing fire detection alarm of claim 1, further comprising an EVA gasket located on top of the labyrinth.
3. The photoelectric smoke-sensing fire detection alarm of claim 1, further comprising a dust screen positioned around the labyrinth.
4. The photoelectric smoke-sensing fire detection alarm device according to claim 1, wherein a plurality of first L-shaped buckles are further arranged on the edge of the bottom shell, and a plurality of clamping grooves matched with the first L-shaped buckles are arranged on the inner wall of the upper cover of the shell.
5. The photoelectric smoke-sensing fire detection alarm device according to claim 1, wherein a plurality of second L-shaped buckles are further arranged on the edge of the bottom cover, a plurality of clamping hole grooves matched with the second L-shaped buckles are formed in the edge of the bottom cover, and the clamping hole grooves are located above the second L-shaped buckles; the second L-shaped buckle is provided with a groove, a protruding strip is arranged in the clamping hole groove, and the groove is matched with the protruding strip.
6. The photoelectric smoke-sensing fire detection alarm device according to claim 1, wherein two positioning posts are arranged on the bottom shell, the positioning posts are provided with positioning holes, and two positioning rods are arranged on the upper cover of the housing and positioned in the positioning holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021820181.XU CN212782241U (en) | 2020-08-26 | 2020-08-26 | Photoelectric smoke-sensing fire detection alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021820181.XU CN212782241U (en) | 2020-08-26 | 2020-08-26 | Photoelectric smoke-sensing fire detection alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212782241U true CN212782241U (en) | 2021-03-23 |
Family
ID=75055308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021820181.XU Active CN212782241U (en) | 2020-08-26 | 2020-08-26 | Photoelectric smoke-sensing fire detection alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212782241U (en) |
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2020
- 2020-08-26 CN CN202021820181.XU patent/CN212782241U/en active Active
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