CN219811234U

CN219811234U - Fire alarm

Info

Publication number: CN219811234U
Application number: CN202320635734.1U
Authority: CN
Inventors: 刘续; 尹生龙; 杜江华; 谢发平; 王海全; 杨一峰; 高洪博; 刘尚; 李晨
Original assignee: Electrification Engineering Co Ltd of CTCE Group
Current assignee: Electrification Engineering Co Ltd of CTCE Group
Priority date: 2023-03-27
Filing date: 2023-03-27
Publication date: 2023-10-10
Anticipated expiration: 2033-03-27

Abstract

The utility model discloses a fire alarm, which comprises an outer shell, wherein a smoke particle measurer is arranged in a cavity of the outer shell, an alarm is arranged on the upper surface of the outer shell, a smoke channel is arranged at the front end of the outer shell, the smoke channel is arranged in a through hole formed in the outer shell, the smoke particle measurer is positioned at the end part of the smoke channel, and the end part of the smoke channel far away from the smoke particle measurer is communicated with the outside of the outer shell. The utility model has novel structure, adopts the smoke dust channel which is horizontally pulled and moved in the outer shell, can be quickly pulled out during cleaning, and removes the dust and the dirt accumulated on the inner wall of the smoke dust channel through cleaning openings on the upper side and the lower side or brushing by a cleaning brush or flushing by clean water, the outer shell is not required to be disassembled during cleaning, the cleaning is efficient and has good effect, and the outer cover plate is loosened after the cleaning is finished by the elastic recovery function of the spring, so that the spring automatically contracts to enable the smoke dust channel to automatically reset, thereby ensuring that the smoke dust channel is in a closed state.

Description

Fire alarm

Technical Field

The utility model relates to the technical field of fire alarms, in particular to a fire alarm.

Background

With the increase of modern household fire and electricity consumption, the frequency of household fire occurrence is higher and higher. Once a household fire happens, adverse factors such as untimely extinguishing, lack of fire extinguishing equipment, panic and overwhelming of the bystanders, slow escape and the like easily occur, and finally, serious life and property losses are caused. The fire alarm is used as a small-sized device with high-efficiency early warning, and has important significance in the requirements of household fire safety protection.

Through the search, the current China patent with the publication number of CN213745996U discloses a portable fire alarm device, although a connecting component is arranged on the fire alarm device, a user can flexibly select installation points of the device according to actual conditions such as arrangement of household appliances and the like in the installation process of the fire alarm device, the timeliness of the fire alarm device is further improved, the safety of household fire is ensured, and meanwhile, the reliability of the device in use is improved by arranging a manual and automatic double-triggering alarm device on the fire alarm device.

However, to this kind of fire alarm, the response to the conflagration smog granule volume that gets into the casing is realized through smog granule caliber to the sending of its conflagration alarm signal, along with long-time use, smog granule piles up when reaching certain thickness in the casing of alarm, can influence the sensitivity of smog granule caliber, need often clear up the smog dirt near the inlet channel, but present integral type fire alarm, its casing adopts the mode of bolt-up to install with main structure to be connected, be difficult to the split, the clearance is inconvenient, consequently, to the difficult split of above-mentioned integral result of traditional fire alarm, the condition of the inconvenient clearance of smog dirt of piling up in the inlet channel, a fire alarm is proposed for this reason.

Disclosure of Invention

The present utility model is directed to a fire alarm device, which solves the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a fire alarm, includes the shell body, the cavity inside of shell body is provided with smog particle measurement ware, the last surface mounting of shell body has the alarm, the front end of shell body is provided with the smoke and dust passageway, the smoke and dust passageway sets up in the opening of seting up on the shell body, smog particle measurement ware is located the tip of smoke and dust passageway, and the tip intercommunication shell body's of smog particle measurement ware outside is kept away from to the smoke and dust passageway.

As a further scheme of the utility model: at least one cleaning opening is formed in the side wall of the smoke dust channel.

As a further scheme of the utility model: the sealing table plate is arranged on the inner side of the outer shell, an arc-shaped indent is formed on the sealing table plate, and the arc-shaped indent on the sealing table plate is arranged on the outer side of the cleaning opening.

As a further scheme of the utility model: the front end of smoke and dust passageway is provided with the dustcoat board, and the dustcoat board is located the inboard of opening, the outside of dustcoat board is provided with the handle.

As a further scheme of the utility model: the front end equidistance of outer cover plate has offered a plurality of mouthfuls of advancing, and the inside of a plurality of mouthfuls of advancing all is provided with the protection network.

As a further scheme of the utility model: the front end face of the outer shell is provided with a display, and the display and the alarm are electrically connected with the smoke particle measurer.

As a further scheme of the utility model: guide rails are symmetrically arranged on the inner side of the outer shell, limit frames are symmetrically arranged at the rear ends of the smoke dust channels and are in sliding connection with the guide rails, springs are connected between the limit frames and the guide rails, and the axial directions of the springs are parallel to the sliding directions of the limit frames.

As a further scheme of the utility model: the smoke and dust passageway is close to the terminal surface of smog particle measurement ware and installs the ring that surrounds, and is connected with the rubber circle on the outside of ring that surrounds, set up flutedly on the lateral wall of base, and the recess is close to smog particle measurement ware, the recess is the same with surrounding the annular form, smog particle measurement ware is located the middle part of recess, surround ring and rubber circle all to connect in the recess.

Compared with the prior art, the utility model has the beneficial effects that: the utility model has novel structure, adopts the smoke dust channel which is horizontally pulled and moved in the outer shell, can be quickly pulled out during cleaning, and removes the dust and the dirt accumulated on the inner wall of the smoke dust channel through cleaning openings on the upper side and the lower side or brushing by a cleaning brush or flushing by clean water, the outer shell is not required to be disassembled during cleaning, the cleaning is efficient and has good effect, and the outer cover plate is loosened after the cleaning is finished by the elastic recovery function of the spring, so that the spring automatically contracts to enable the smoke dust channel to automatically reset, thereby ensuring that the smoke dust channel is in a closed state.

Drawings

FIG. 1 is a schematic diagram of an assembled structure of the present utility model;

FIG. 2 is a schematic view of the outer housing structure of the present utility model;

FIG. 3 is a schematic view of a smoke passageway structure according to the present utility model;

fig. 4 is a schematic diagram of the smoke particle measuring apparatus of the present utility model.

In the figure: 1. an outer housing; 2. a base; 3. a smoke particle measurer; 4. a through port; 5. an outer cover plate; 6. a smoke passage; 7. cleaning the mouth; 8. a display; 9. an alarm; 10. a guide rail; 11. a limiting frame; 12. a spring; 13. a handle; 14. an encircling ring; 15. a groove; 16. a rubber ring; 17. closing the table sheet; 18. a smoke inlet.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, 2 and 3, in the embodiment of the utility model, a fire alarm comprises an outer shell 1, a smoke particle measurer 3 is arranged in a cavity of the outer shell 1, the smoke particle measurer 3 uses a particle constant-speed sampling principle, fire smoke enters a sampling nozzle of the smoke particle measurer 3, the position of the sampling nozzle is a measuring point, the direction of smoke and air flow is opposite to that of the smoke particle measurer, a certain amount of dust-containing gas is extracted according to constant-speed sampling requirements, the concentration of particles in the surrounding environment is calculated according to the weight of smoke captured by a filter cylinder in the fire alarm and the volume of the extracted gas, the concentration reaches an early warning value, an alarm 9 is mounted on the upper surface of the outer shell 1, a smoke channel 6 is arranged at the front end of the outer shell 1, the smoke channel 6 is arranged in a through hole 4 formed in the outer shell 1, the smoke particle measurer 3 is positioned at the end of the smoke channel 6, and the end of the smoke channel 6 is far away from the smoke particle measurer 3 and is communicated with the outside of the outer shell 1.

Referring to fig. 2, in an embodiment, in order to better remove the dirt inside the dust channel 6, in this embodiment, preferably, two cleaning openings 7 are formed on the side wall of the dust channel 6, the positions of the cleaning openings 7 are not limited, in this embodiment, preferably, the cleaning openings 7 are vertically symmetrical, so that the cleaned dirt is conveniently discharged from the cleaning openings 7 below, and when the cleaning tool is used to clean the dirt inside the dust channel 6, the dirt can be discharged from the dust channel 6 along the cleaning openings 7 formed on the circular arc surface, so as to ensure that the dirt inside the dust channel 6 is clean and the pollution discharge effect is better.

Referring to fig. 2, in one embodiment, in order to prevent dust and dirt from entering the interior of the smoke channel 6 through the cleaning port 7, in this embodiment, preferably, a sealing table 17 is installed on the inner side of the outer casing 1, an arc-shaped indent is formed on the sealing table 17, and the arc-shaped indent on the sealing table 17 is disposed on the outer side of the cleaning port 7, after the smoke channel 6 is reset, the sealing table 17 can seal the cleaning port 7, so as to prevent dust from entering the interior of the outer casing 1 through the cleaning port 7, and in use, the sealing table 17 is consistent with the cleaning port 7 in number, and sealing tables 17 are disposed at each cleaning port 7 to seal the cleaning port 7.

Referring to fig. 1, 2 and 3, in one embodiment, in order to facilitate drawing out the smoke channel 6 inside the outer casing 1 for cleaning, in this embodiment, preferably, the front end of the smoke channel 6 is provided with an outer cover plate 5, and the outer cover plate 5 is located at the inner side of the through hole 4, the outer side of the outer cover plate 5 is matched with the inner side of the through hole 4, a handle 13 is provided at the outer side of the outer cover plate 5, and by pulling the handle 13 on the outer cover plate 5 by a worker, the outer cover plate 5 can drive the smoke channel 6 to draw out from the inner side of the outer casing 1 along the through hole 4, so that the worker can clean the smoke channel 6 conveniently.

Referring to fig. 1, in an embodiment, in order to prevent external flying insects from entering the interior of the smoke channel 6 through the smoke inlet 18, in this embodiment, preferably, the front end of the outer cover plate 5 is provided with a plurality of smoke inlets 18 at equal intervals, and the interiors of the smoke inlets 18 are all provided with protective screens, and the protective screens are not limited in material.

Referring to fig. 1 and 2, in one embodiment, in order to facilitate a person to observe the condition of the fire alarm better, in this embodiment, preferably, a display 8 is disposed on the front end surface of the outer casing 1, and the display 8 and the alarm 9 are electrically connected to the smoke particle measurer 3.

When the smoke particle measurer 3 detects that the concentration of the smoke entering the smoke particle measurer is calculated through the singlechip and displayed on the display 8, and when the detected concentration value reaches an early warning value, the buzzer structure of the alarm 9 gives out an alarm sound.

Referring to fig. 2, in one embodiment, in order to support the position of the smoke particle measurer 3 conveniently, in this embodiment, preferably, the inner side of the outer casing 1 is provided with a base 2, the base 2 is far away from the through hole 4, the front end of the base 2 is provided with the smoke particle measurer 3, and the smoke particle measurer 3 is located on one side of the base 2 near the through hole 4.

Referring to fig. 1, 2 and 3, in an embodiment, in order to ensure that the smoke channel 6 will not rotate during extraction, and at the same time, the smoke channel 6 can be effectively reset, in this embodiment, preferably, the inner side of the outer casing 1 is symmetrically provided with the guide rail 10, the rear end of the smoke channel 6 is symmetrically provided with the limit frame 11, the distance between the two limit frames 11 is not limited, in this embodiment, preferably, the maximum distance between the two limit frames 11 is greater than the diameter of the through hole 4, the smoke channel 6 can be limited to be completely separated from the through hole 4, the limit frames 11 are arranged on the inner side of the guide rail 10, the smoke channel 6 is prevented from rotating by driving the limit frames 11 to move along the guide rail 10 in a directional manner, the limit frames 11 are connected with the guide rail 10 in a sliding manner, the axial direction of the spring 12 is parallel to the sliding direction of the limit frames 11, the spring 12 has elastic shrinkage capability, and generates a traction effect on the inner side of the outer casing 1, and after the smoke channel 6 is cleaned, the smoke channel 6 and the plate 5 can be reset.

Referring to fig. 3 and 4, in one embodiment, in order to ensure that a relatively airtight cavity is formed between the base 2 and the smoke channel 6, in this embodiment, preferably, the end surface of the smoke channel 6 adjacent to the smoke particle measurer 3 is provided with an enclosing ring 14, a rubber ring 16 is disposed on the outer side of the enclosing ring 14, a groove 15 is formed on the side wall of the base 2, the shape of the groove 15 is not limited, in this embodiment, preferably, the groove 15 is in a circular ring shape, and the shape of the end of the enclosing ring 14 is the same as the shape of the groove 15, so that the enclosing ring 14 is beneficial to entering into the groove 15 to realize sealing, and the groove 15 is adjacent to the smoke particle measurer 3, and the shape of the groove 15 and the enclosing ring 14 are the same, the smoke particle measurer 3 is located in the middle of the groove 15, the surrounding ring 14 and the rubber ring 16 are connected in the groove 15, the inner side of the rubber ring 16 is attached to the inner wall of the groove 15, the sealing effect is achieved on the structural gap between the surrounding ring 14 and the base 2, the smoke dust channel 6 enters the inner part of the outer shell 1 after cleaning, the surrounding ring 14 and the rubber ring 16 synchronously enter the groove 15 on the base 2, the smoke particle measurer 3 is ensured to enter the surrounding ring 14, smoke dust entering the smoke dust channel 6 is further ensured not to enter the inner part of the outer shell 1 through the opening of the smoke dust channel 6, and accuracy in detecting the smoke dust concentration is improved.

The working principle and the using flow of the utility model are as follows: the handle 13 is held by a hand to pull the outer cover plate 5 outwards from the through hole 4, the outer cover plate 5 drives the smoke dust channel 6 to synchronously move, the smoke dust channel 6 moves and maintains the stability of the smoke dust channel 6 in the guide rail 10 through the directional sliding of the limiting frame 11, at this moment, when the smoke dust channel 6 is pulled out of the inner part of the outer shell 1, the spring 12 deforms, the cleaning hole 7 is separated from the sealing table sheets 17 at the upper side and the lower side, the cavity structure in the inner part is exposed, the cleaning brush or clear water is used for flushing the inner wall of the smoke dust channel 6, dust and dirt are quickly removed, after cleaning is finished, the handle 13 is released, the spring 12 moves and resets along the guide rail 10 after the external tension is lost, the outer cover plate 5 returns to the through hole 4, at this moment, the rubber ring 16 enters the groove 15, the smoke dust particle measurer 3 is sealed in, the sealing table sheets 17 at the upper side and the lower side are sealed again, when fire occurs, the smoke dust enters the inner part of the smoke dust channel 6 through the smoke inlet 18, then enters the smoke dust channel 6, and the concentration of the smoke dust enters the channel 6 through the inner part, and the smoke dust concentration is detected by the inner part, and the concentration of the smoke dust channel reaches the alarm value, and the alarm value is not known in the prior art, and the alarm value is reached.

Although the present disclosure describes embodiments, not every embodiment is described in terms of a single embodiment, and such description is for clarity only, and one skilled in the art will recognize that the embodiments described in the disclosure as a whole may be combined appropriately to form other embodiments that will be apparent to those skilled in the art.

Therefore, the above description is not intended to limit the scope of the utility model; all changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims

1. The utility model provides a fire alarm, includes shell body (1), the cavity inside of shell body (1) is provided with smog particle measurement ware (3), the last surface mounting of shell body (1) has alarm (9), a serial communication port, the front end of shell body (1) is provided with smoke and dust passageway (6), smoke and dust passageway (6) set up in opening (4) of seting up on shell body (1), smog particle measurement ware (3) are located the tip of smoke and dust passageway (6), the outside of the tip intercommunication shell body (1) of smog particle measurement ware (3) is kept away from to smoke and dust passageway (6).

2. A fire alarm as claimed in claim 1, wherein the side wall of the smoke passage (6) is provided with at least one cleaning opening (7).

3. A fire alarm as claimed in claim 2, wherein the inner side of the outer casing (1) is provided with a sealing table (17), the sealing table (17) is provided with an arc-shaped indent, and the arc-shaped indent of the sealing table (17) is arranged outside the cleaning opening (7).

4. A fire alarm as claimed in claim 3, wherein the surface of the closing plate (17) is attached to the outer wall of the smoke passage (6), and the curved concave surface is attached to the cleaning opening (7) of the smoke passage (6).

5. A fire alarm as claimed in claim 1, wherein the front end of the smoke passage (6) is provided with an outer cover plate (5), and the outer cover plate (5) is located inside the through opening (4), and a handle (13) is provided outside the outer cover plate (5).

6. The fire alarm device according to claim 5, wherein a plurality of smoke inlets (18) are equidistantly formed in the front end of the outer cover plate (5), and a protection net is arranged in each of the smoke inlets (18).

7. A fire alarm as claimed in claim 1, wherein the front face of the outer housing (1) is provided with a display (8), and the display (8) and the alarm (9) are electrically connected to the smoke particle measurer (3).

8. A fire alarm as claimed in claim 1, wherein the base (2) is mounted on the inner side of the outer casing (1), the base (2) is remote from the through opening (4), the front end of the base (2) is provided with a smoke particle measurer (3), and the smoke particle measurer (3) is located on one side of the base (2) close to the through opening (4).

9. The fire alarm device according to claim 1, wherein the inner side of the outer housing (1) is symmetrically provided with guide rails (10), the rear end of the smoke passage (6) is symmetrically provided with limit frames (11), the limit frames (11) are slidably connected with the guide rails (10), springs (12) are connected between the limit frames (11) and the guide rails (10), and the axial directions of the springs (12) are parallel to the sliding directions of the limit frames (11).

10. A fire alarm as claimed in claim 8, wherein the smoke passage (6) is provided with a surrounding ring (14) adjacent to the end face of the smoke particle measuring instrument (3), and a rubber ring (16) is connected to the outer side of the surrounding ring (14), a groove (15) is formed in the side wall of the base (2), the groove (15) is adjacent to the smoke particle measuring instrument (3), the groove (15) and the surrounding ring (14) are identical in shape, the smoke particle measuring instrument (3) is located in the middle of the groove (15), and the surrounding ring (14) and the rubber ring (16) are connected to the groove (15).