CN216051261U - Suction-type smoke detection device - Google Patents

Abstract

The utility model relates to a suction type smoke detection device. The problem of among the prior art directly install smoke detector in the engine compartment, it is high to smoke detector requirement, be difficult to satisfy the requirement is solved. The device comprises a main machine part, a fan and a ventilation part, wherein a smoke detector is arranged in the main machine part, an air inlet and an air outlet are respectively arranged on two sides of the main machine part, the air outlet is connected with the fan, the ventilation part comprises a ventilation pipe, a plurality of air suction holes are formed in the ventilation pipe, the ventilation pipe is arranged inside an engine compartment, and one air outlet end of the ventilation pipe is connected with the air inlet. According to the utility model, the smoke detector is arranged outside the engine compartment, and air in the engine compartment is conveyed to the smoke detector outside for detection through the ventilation part, so that the working temperature requirement of the smoke detector is lowered.

Description

Suction-type smoke detection device

Technical Field

The utility model relates to the technical field of gas detection, in particular to a suction type smoke detection device.

Background

The large-scale road maintenance machine is mainly used for cleaning and screening the railway lines, tamping turnout points, shaping ballast, stabilizing the railway lines and the like, is a main machine for major and intermediate maintenance of the railway lines and bears an important mission for reinforcing the basic foundation of the railway. When a large road maintenance machine works, the power unit operates under high load for a long time, the heating value is large, the temperature is high, sparks can penetrate into a machine room, and a serious fire can happen when oil pipes of the hydraulic motor leak. The power room belongs to an unattended area, and an operation driver cannot monitor abnormal conditions of the power room in real time, so that serious potential safety hazards exist. In order to ensure the construction safety and equipment safety of large-scale road maintenance machinery, a fire early warning device of the large-scale road maintenance machinery is urgently needed to be developed. Particularly, the grinding wagon is a main large-scale road maintenance machine for repairing turnouts and steel rails, the operation environment is severe, the fire pressure is high, the development difficulty is high, and the grinding wagon is selected as a trial vehicle type and is extremely representative.

At present, a smoke detector is generally arranged in an engine compartment of a road maintenance machine fire early warning device, and whether the engine catches fire or not is judged by determining whether smoke exists in the air in the engine compartment through the smoke detector. However, the engine compartment has a severe environment, high temperature and large dust; the smoke sensor is directly installed in the engine compartment, the requirement on a smoke detector is high, and most of the smoke detectors cannot meet the requirement.

Disclosure of Invention

The utility model mainly solves the problems that the smoke detector is directly arranged in an engine compartment, the requirement on the smoke detector is high, and the requirement is difficult to meet in the prior art, and provides a suction type smoke detection device.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the suction type smoke detection device comprises a host part, a fan and a ventilation part, wherein a smoke detector is arranged in the host part, an air inlet and an air outlet are formed in two sides of the host part respectively, the air outlet is connected with the fan, the ventilation part comprises a ventilation pipe, a plurality of air suction holes are formed in the ventilation pipe, the ventilation pipe is arranged inside an engine compartment, and one air outlet end of the ventilation pipe is connected with the air inlet. According to the utility model, the smoke detector is arranged outside the engine compartment, and air in the engine compartment is conveyed to the smoke detector outside for detection through the ventilation part, so that the working temperature requirement of the smoke detector is reduced, and the interference of dust on the smoke detector is also reduced.

In a preferred embodiment of the above aspect, the main unit includes a housing and an insertion portion, an insertion opening is formed at a side end of the housing, the insertion portion is inserted into the housing through the insertion opening, and the smoke detector is disposed in the insertion portion. This scheme host computer portion is grafting structure, and the casing is inside to have the cavity that holds the portion of inserting, and the portion of inserting inserts in the casing, and the portion of inserting can conveniently be dismantled and install, namely makes smoke detector can conveniently dismantle and install, is convenient for maintain the back and changes.

As a preferable scheme of the above scheme, the housing includes a front end surface and a rear end surface opposite to each other, the front end surface is provided with the air inlet, the rear end surface is provided with the air outlet, and the smoke detector is located between the air inlet and the air outlet. The casing is square in this scheme, offers air intake and air outlet on the front and back terminal surface respectively, and back is inserted in the casing to the portion of inserting, and the smoke detector just in time is located between air intake and air outlet, and the air gets into the air outlet outflow from the air intake, just in time passes through the smoke detector, detects the smog granule in the air by the smoke detector in order to confirm whether there is the conflagration in the engine compartment.

As a preferable scheme of the above scheme, the insertion portion includes a panel and an insertion box, the insertion box is connected to a bottom surface of the panel, the smoke detector is located in the insertion box, and through holes are respectively formed in front and rear end surfaces of the insertion box corresponding to the air inlet and the air outlet. The panel is the same as the side end of the shell in size, the insertion hole is the same as the section of the insertion box in size, the insertion box is arranged in the middle of the bottom surface of the panel, a circle of clamping edges are formed on the periphery of the panel, the insertion box is inserted into the shell, the panel is attached to the side end face of the shell, fixing holes are formed in the side end face of the shell between the insertion hole and the edge of the side end face, fixing holes are correspondingly formed in the clamping edges, and the insertion part is fixed on the shell by being screwed in the fixing holes through bolts.

As a preferable scheme of the above scheme, a rear-end dust screen is arranged between the two through holes in the insertion box, and the smoke detector is located between the filter screen and the through hole on the side close to the air outlet. In the scheme, an air duct is formed between the through holes on the front end face and the rear end face of the insertion box, and air flows through the air duct and then passes through the smoke detector positioned in the air duct. A rear-end dust screen is arranged in the insertion box, so that fine dust particles passing through the air of the smoke detector are filtered, and the interference of dust on the smoke detector is reduced. The rear end dust screen adopts a PM2.5 filter screen, and can filter more than 90% of dust.

As a preferable scheme of the above scheme, a power interface is arranged on the panel, and the power interface is connected with a smoke detector. The power interface is used for connecting a power supply, is electrically connected with the smoke detector, and provides electric energy for the smoke detector through the power interface after being plugged with a power line and electrified.

As a preferable scheme of the above scheme, the vent pipe is connected with the air inlet through a metal hose. Through metal collapsible tube connection breather pipe and air intake in this scheme, make things convenient for equipment to dock, also can satisfy the butt joint of different mounted position simultaneously.

As a preferable scheme of the above scheme, a first pair of interfaces is arranged at the air outlet end of the vent pipe, a second pair of interfaces is arranged on the outer side of the air inlet of the shell, and two ends of the metal hose are respectively connected with the first pair of interfaces and the second pair of interfaces. In the scheme, the first pair of interfaces and the second pair of interfaces are round interfaces with the same size, and two ends of the metal hose are conveniently connected with the first pair of interfaces and the second pair of interfaces.

In a preferred embodiment of the present invention, a tip dust screen is provided in the air intake hole. Front end dust screen adopts high temperature resistant in this scheme, and fire-retardant material's dustproof filtration cotton uses 500 mesh dust screens, filters the large granule dust.

As a preferable scheme of the scheme, the distance between the air suction holes on the air vent pipe is 50mm-150 mm. The length of the vent pipe is close to that of the engine compartment, the distance between the air suction holes is preferably 100mm, and the air above any position in the engine compartment can be sucked by the ventilating part, so that no monitoring blind area exists.

The utility model has the advantages that: the smoke detector is arranged outside the engine compartment, air in the engine compartment is conveyed to the external smoke detector through the ventilation part to be detected, the working temperature requirement of the smoke detector is lowered, air dust is filtered through the front-end dust screen and the rear-end dust screen, and the interference of dust to the smoke detector is lowered.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention;

FIG. 2 is a schematic diagram of a host part according to the present invention;

fig. 3 is a schematic view of a structure of the vent part of the present invention.

1-a host part 2-a ventilation part 3-a fan 4-an air inlet 5-an air outlet 6-a smoke detector 7-a ventilation pipe 8-an air suction hole 9-a shell 10-an insertion part 11-an insertion opening 12-a panel 13-an insertion box 14-a rear end dust screen 15-a rear end dust screen 16-a power supply interface 17-a metal hose 18-a first pair of interfaces 19-a second pair of interfaces.

Detailed Description

The technical solution of the present invention is further described below by way of examples with reference to the accompanying drawings.

Example (b):

the suction type smoke detector of the embodiment, as shown in fig. 1, includes a main machine portion 1, a blower 3 and a ventilation portion 2, a smoke detector 6 is provided in the main machine portion, an air inlet 4 and an air outlet 5 are respectively provided on two sides of the main machine portion, the air outlet is connected to the blower, and the air inlet is connected to the ventilation portion.

As shown in fig. 2, the main body part 1 includes a housing 9 and an insertion part 10, the housing is a directional structure, a cavity for accommodating the insertion part is provided inside the housing, the housing includes a front end face and a rear end face opposite to each other, the front end face is provided with the air inlet 4, the rear end face is provided with the air outlet 5, a side end of the housing is provided with an insertion opening 11, and the insertion part is inserted into the housing through the insertion opening. Specifically, the inserting portion 10 includes a panel 12 and an inserting box 13, the inserting box is connected to the bottom surface of the panel, a circle of clamping edges are formed around the panel, the smoke detector 6 is located in the inserting box, a power interface 16 is arranged on the panel, and the power interface is connected with the smoke detector 6. The insertion part is inserted into the shell, the insertion box is inserted into the shell, the panel is attached to the side end face of the shell, a fixing hole is formed in the side end face of the shell between the insertion hole and the edge of the side end face, a fixing hole is correspondingly formed in the clamping edge, and the insertion part is fixed on the shell by being screwed in the fixing hole through a bolt. The smoke detector is positioned in the air duct, and after the insertion box is inserted into the shell, the detector is positioned between the air inlet and the air outlet. A rear-end dustproof net 14 is arranged between the two through holes in the insertion box 13, and the smoke detector is positioned between the filter screen and the through hole at the side close to the air outlet. The rear end dust screen adopts a PM2.5 filter screen, fine dust particles passing through air of the smoke detector are filtered, and interference of dust on the smoke detector is reduced.

As shown in fig. 3, the ventilation part includes a ventilation pipe 7, a plurality of air suction holes 8 are formed on the ventilation pipe, the ventilation pipe is arranged inside the engine compartment, and the ventilation pipe 7 is connected with the air inlet 4 through a metal hose 17. The butt joint of equipment is facilitated, and the butt joint of different installation positions can be met. A first pair of interfaces 18 is arranged at the air outlet end of the vent pipe 7, a second pair of interfaces 19 is arranged on the outer side of the shell air inlet 4, and two ends of the metal hose are respectively connected with the first pair of interfaces and the second pair of interfaces. The breather pipe length is close engine compartment length, and the distance is 100mm between the last suction opening of breather pipe, is provided with front end dust screen 20 on suction opening 8, and the front end dust screen adopts high temperature resistant, and fire-retardant material's dustproof filter pulp uses 500 mesh dust screen, filters the large granule dust.

When the smoke detector works, the fan is started, air in the engine compartment is sucked into the ventilating pipe and filtered through the front end dustproof net, then the air enters the host part through the air inlet, is filtered through the rear end dustproof net and passes through the smoke detector, the smoke detector determines whether fire disasters exist in the engine compartment by judging smoke particles, and the air passing through the smoke detector passes through the air outlet and is exhausted to the outside through the fan. According to the smoke detector, the smoke detector is arranged outside the engine compartment, air in the engine compartment is conveyed to the smoke detector outside through the ventilation portion for detection, the working temperature requirement of the smoke detector is lowered, and the interference of dust on the smoke detector is also lowered.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Although the terms host portion, ventilation portion, fan, air intake, air outlet, etc. are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims (10)

1. A suction-type smoke detection device, characterized in that: the smoke detector is arranged in the main machine portion, an air inlet (4) and an air outlet (5) are formed in two sides of the main machine portion respectively, the air outlet is connected with the fan, the ventilation portion comprises a ventilation pipe (7), a plurality of air suction holes (8) are formed in the ventilation pipe, the ventilation pipe is arranged inside an engine compartment, and one air outlet end of the ventilation pipe is connected with the air inlet.

2. An inhalation smoke detector according to claim 1, wherein said main unit (1) comprises a housing (9) having an insertion opening (11) formed at a side end thereof, and an insertion unit (10) inserted into the housing through the insertion opening, said smoke detector (6) being disposed in the insertion unit.

3. A suction smoke detector according to claim 2, wherein said housing (9) comprises opposite front and rear faces, said inlet opening (4) being provided in said front face and said outlet opening (5) being provided in said rear face, said smoke detector (6) being located between said inlet and outlet openings.

4. A suction smoke detector according to claim 2 or 3, wherein said insert (10) comprises a panel (12) and an insert box (13) attached to the bottom of the panel, the smoke detector (6) being located within the insert box, the front and rear end faces of the insert box being provided with through holes corresponding to the air inlet and outlet respectively.

5. A suction smoke detector according to claim 4, wherein a rear dust screen (14) is provided in said insert (13) between said two through holes, said smoke detector being located between said filter screen and said through hole adjacent said outlet.

6. A suction smoke detector according to claim 4, wherein said face plate (12) is provided with a power interface (16) to which the smoke detector (6) is connected.

7. A suction smoke detector according to claim 3, wherein said ventilation pipe (7) is connected to said air inlet (4) by a metal hose (17).

8. A suction smoke detector according to claim 7 wherein said vent pipe (7) is provided with a first pair of ports (18) at the outlet end and a second pair of ports (19) at the outer side of said housing inlet (4), said metal hose (17) being connected at each end to said first and second pair of ports.

9. A suction smoke detector according to claim 1, 2 or 3, wherein a dust screen (20) is provided at the front end of the suction opening (8).

10. A suction smoke detector according to claim 1, 2 or 3, wherein the distance between the suction holes (8) on the snorkel is 50mm-150 mm.

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