CN219623751U

CN219623751U - Smoke detection device convenient to overhaul

Info

Publication number: CN219623751U
Application number: CN202320396032.2U
Authority: CN
Inventors: 石斌晖
Original assignee: Hangzhou Hengxiao Technology Co ltd
Current assignee: Hangzhou Hengxiao Technology Co ltd
Priority date: 2023-03-06
Filing date: 2023-03-06
Publication date: 2023-09-01
Anticipated expiration: 2033-03-06

Abstract

The utility model discloses a smoke detection device convenient to overhaul, which comprises a ceiling plate, wherein a plurality of groups of transmission shafts and a driving device for driving the transmission shafts to rotate are arranged at the top of the ceiling plate, the plurality of groups of transmission shafts are distributed in a square shape on the ceiling plate, adjacent transmission shafts are connected through bevel gear transmission groups in a meshed manner, a roller is fixedly sleeved on the transmission shafts, a pull rope is wound on the roller, the free end of the pull rope penetrates through the ceiling plate and then is connected with a lifting plate, and an independent smoke detector is fixedly arranged at the bottom of the lifting plate. According to the utility model, the electromagnet is powered off, the worm is driven by the motor to drive the worm wheel to rotate anticlockwise, the worm wheel drives the transmission shaft to rotate anticlockwise, the transmission shafts are meshed and transmitted through the bevel gear transmission group, the synchronous rotation of the four transmission shafts is realized, the winding rollers rotate synchronously with the transmission shafts, the pull rope is released, and the lifting plate and the independent smoke detector are lowered, so that the independent smoke detector is convenient for a worker to overhaul.

Description

Smoke detection device convenient to overhaul

Technical Field

The utility model relates to the technical field of smoke detection devices, in particular to a smoke detection device convenient to overhaul.

Background

The fire detector is a device for detecting fire in an automatic fire alarm system. The smoke detector is one type of fire detector, and can be divided into an independent type and a networking type, wherein the independent type smoke detector adopts battery power supply and on-site audible and visual alarm, and is suitable for being used in places such as families, shops and hotels.

The smoke detector is generally installed on the ceiling board, when overhauling, staff needs to climb high by means of a ladder stand or a lifting platform, and is dangerous, and especially in places with high ceiling boards such as hotel lobbies, the common ladder stand is not high enough, and tools such as the lifting platform are inconvenient to move into a room, so that overhauling of the smoke detector is troublesome.

Disclosure of Invention

The utility model aims at: in order to solve the technical problems mentioned in the background art, a smoke detection device convenient to overhaul is provided.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a smoke detection device convenient to overhaul, includes the furred ceiling board, multiunit transmission shaft is installed at the furred ceiling board top to and drive transmission shaft pivoted drive arrangement, multiunit the transmission shaft is square distribution on the furred ceiling board, and is adjacent connect through bevel gear drive group meshing between the transmission shaft, fixed the cup joint roller on the transmission shaft, the round joint has the stay cord on the roller, be connected with the lifter plate after the free end of stay cord passes the furred ceiling board, lifter plate bottom fixed mounting has stand alone type smoke detector.

As a further description of the above technical solution:

the fixed plate is fixedly connected to the top of the suspended ceiling plate, the electromagnet is fixedly connected to the bottom of the fixed plate, the iron block is fixedly connected to the top of the lifting plate, and square holes for accommodating the iron block to enter and exit are formed in the suspended ceiling plate.

As a further description of the above technical solution:

the driving device comprises a worm wheel fixedly sleeved on the transmission shaft, a motor is fixedly installed on the ceiling plate, and an output shaft of the motor is in transmission connection with a worm in meshed connection with the worm wheel.

As a further description of the above technical solution:

the lifting plate is fixedly connected with positioning columns distributed around the iron block, and the suspended ceiling plate is provided with a first through hole for accommodating the positioning columns.

As a further description of the above technical solution:

the suspended ceiling plate is provided with a second through hole for accommodating the pull rope, rollers are rotatably arranged on the inner surface walls of the two sides of the second through hole, and the pull rope is in rolling contact with the rollers on the two sides.

As a further description of the above technical solution:

the transmission shafts are distributed around the fixed plate.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

1. according to the utility model, the electromagnet is powered off, the worm is driven by the motor to drive the worm wheel to rotate anticlockwise, the worm wheel drives the transmission shaft to rotate anticlockwise, the transmission shafts are meshed and transmitted through the bevel gear transmission group, the synchronous rotation of the four transmission shafts is realized, the winding rollers rotate synchronously with the transmission shafts, the pull rope is released, and the lifting plate and the independent smoke detector are lowered, so that the independent smoke detector is convenient for a worker to overhaul.

2. According to the utility model, the lifting plate and the independent smoke detector are driven to rise by the motor, the positioning column penetrates through the first through hole, the iron block penetrates through the square hole to be in contact with the electromagnet, the electromagnet is supplied with power, the iron block is adsorbed on the electromagnet, the lifting plate is fixed, the electromagnetic locking structure is arranged, a double guarantee function is achieved for fixing the lifting plate, and the risk that the lifting plate falls from the suspended ceiling plate uncontrollably to injure pedestrians when the worm and gear self-locking structure fails is avoided.

Drawings

Fig. 1 is a schematic perspective view of a first view angle of a smoke detection device for easy maintenance according to an embodiment of the present utility model;

fig. 2 is a schematic perspective view of a second view angle of a smoke detection device for easy maintenance according to an embodiment of the present utility model;

fig. 3 is a schematic cross-sectional view of a ceiling tile of a smoke detection device for easy maintenance according to an embodiment of the present utility model;

fig. 4 shows an enlarged schematic view of a portion a of a smoke detection device for easy maintenance according to an embodiment of the present utility model.

Legend description:

1. a ceiling plate; 2. a transmission shaft; 3. bevel gear drive group; 4. a roller; 5. a pull rope; 6. a worm; 7. a motor; 8. a worm wheel; 9. a fixing plate; 10. a first through hole; 11. a lifting plate; 12. iron blocks; 13. a freestanding smoke detector; 14. positioning columns; 15. square holes; 16. an electromagnet; 17. a second through hole; 18. and a roller.

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. 1-4, the present utility model provides a technical solution: the utility model provides a smoke detection device convenient to overhaul, including furred ceiling board 1, multiunit transmission shaft 2 is installed at furred ceiling board 1 top, and drive transmission shaft 2 pivoted drive arrangement, drive arrangement includes the worm wheel 8 of fixed cover on transmission shaft 2, fixedly mounted motor 7 on the furred ceiling board 1, the output shaft transmission of motor 7 is connected with worm 6 with worm wheel 8 meshing connection, multiunit transmission shaft 2 is square distribution around fixed plate 9 on furred ceiling board 1, and connect through bevel gear drive group 3 meshing between the adjacent transmission shaft 2, fixedly cup joint roller 4 on the transmission shaft 2, the round of connect has stay cord 5 on the roller 4, be connected with lifter plate 11 after the free end of stay cord 5 passes furred ceiling board 1, stand alone type smoke detector 13 is fixedly mounted to lifter plate 11 bottom;

the worm 6 is driven by the motor 7 to drive the worm wheel 8 to rotate, the worm wheel 8 drives the transmission shaft 2 to rotate, the transmission shaft is meshed and transmitted by the bevel gear transmission group 3, the synchronous rotation of the four transmission shafts 2 is realized, the winding roller 4 synchronously rotates along with the transmission shaft, the pull rope 5 is wound or released, and then the lifting plate 11 and the independent smoke detector 13 are driven to lift;

firstly, when the worm wheel 8 drives the transmission shaft 2 to rotate anticlockwise, the pull rope 5 is released, so that the lifting plate 11 and the independent smoke detector 13 are lowered, thereby being convenient for a worker to overhaul the independent smoke detector 13, and secondly, when the worm wheel 8 drives the transmission shaft 2 to rotate clockwise, the pull rope 5 is wound, so that the lifting plate 11 and the independent smoke detector 13 are lifted to be in contact with the lifting plate 1, and the lifting plate 11 is fixed;

secondly, considering that the pull ropes 5 wound on the winding roller 4 are likely to twist in the winding and unwinding process and drive the lifting plate 11 to shake greatly in the horizontal direction, the lifting plate 11 is arranged into a round shape, the pull ropes 5 are connected around the lifting plate 11, the included angle between every two adjacent pull ropes 5 is 90 degrees, and the stability of the lifting plate 11 during lifting is improved.

Specifically, as shown in fig. 2, the top of the suspended ceiling plate 1 is fixedly connected with a fixing plate 9, the bottom of the fixing plate 9 is fixedly connected with an electromagnet 16, the top of the lifting plate 11 is fixedly connected with an iron block 12, a square hole 15 for accommodating the iron block 12 to enter and exit is formed in the suspended ceiling plate 1, before the motor 7 is started to lower the lifting plate 11, the electromagnet 16 is powered off, so that the iron block 12 is smoothly separated from the electromagnet 16, and when the motor 7 is started to enable the lifting plate 11 to be lifted to the suspended ceiling plate 1, the iron block 12 simultaneously passes through the square hole 15 to contact with the electromagnet 16 to supply power to the electromagnet 16, and the iron block 12 is adsorbed on the electromagnet 16 due to magnetic force to play a role in fixing the lifting plate 11.

In the utility model, (1) the motor 7 and the electromagnet 16 are all powered by an external power supply and controlled by an independent switch; (2) The electromagnetic locking structure is arranged, so that double guarantee effects are achieved for fixing the lifting plate 11, and the risk of injuring pedestrians due to smashing exists when the lifting plate 11 falls uncontrolled from the suspended ceiling plate 1 when the worm gear self-locking structure fails.

Specifically, as shown in fig. 2, the lifting plate 11 is fixedly connected with positioning columns 14 arranged around the iron block 12, the ceiling plate 1 is provided with a first through hole 10 for accommodating the positioning columns 14, and the positioning columns 14 enter the first through hole 10, so that the fixing stability of the lifting plate 11 is improved.

Specifically, as shown in fig. 1 and fig. 4, a second through hole 17 for accommodating the pull rope 5 is formed in the ceiling board 1, rollers 18 are rotatably mounted on the inner surface walls of two sides of the second through hole 17, the pull rope 5 is in rolling contact with the rollers 18 on two sides, the direct contact between the pull rope 5 and the wall of the second through hole 17 is avoided, friction is reduced, damage to the pull rope 5 is reduced, and the service life of the pull rope 5 is prolonged.

Working principle: when the smoke detector is used, firstly, the electromagnet 16 is powered off, then, the worm 6 is driven by the motor 7 to drive the worm wheel 8 to rotate anticlockwise, the worm wheel 8 drives the transmission shaft 2 to rotate anticlockwise, the transmission is meshed through the bevel gear transmission group 3, the synchronous rotation of the four transmission shafts 2 is realized, the winding roller 4 rotates synchronously with the transmission shaft, the pull rope 5 is released, the lifting plate 11 and the independent smoke detector 13 are lowered, and therefore, the maintenance of the independent smoke detector 13 by workers is facilitated;

secondly, after maintenance is finished, the worm 6 is driven by the motor 7 to drive the worm wheel 8 to rotate clockwise, the worm wheel 8 drives the transmission shaft 2 to rotate clockwise, the transmission shaft is meshed through the bevel gear transmission group 3, synchronous rotation of the four transmission shafts 2 is achieved, the winding roller 4 rotates synchronously with the transmission shaft, the winding pull rope 5 is wound, the lifting plate 11 and the independent smoke detector 13 are lifted, the positioning column 14 penetrates through the first through hole 10, the iron block 12 penetrates through the square hole 15 to be in contact with the electromagnet 16, power is supplied to the electromagnet 16, the iron block 12 is adsorbed on the electromagnet 16, and the lifting plate 11 is fixed.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a smoke detection device convenient to overhaul, includes furred ceiling board (1), its characterized in that, multiunit transmission shaft (2) are installed at furred ceiling board (1) top to and drive transmission shaft (2) pivoted drive arrangement, multiunit transmission shaft (2) are square distribution above furred ceiling board (1), and adjacent through bevel gear drive group (3) meshing connection between transmission shaft (2), fixed sleeve has covered roller (4) on transmission shaft (2), the round has connect stay cord (5) on roller (4), be connected with lifter plate (11) after the free end of stay cord (5) passed furred ceiling board (1), lifter plate (11) bottom fixed mounting has stand alone type smoke detector (13).

2. The smoke detection device convenient to overhaul according to claim 1, wherein the top of the suspended ceiling plate (1) is fixedly connected with a fixing plate (9), the bottom of the fixing plate (9) is fixedly connected with an electromagnet (16), the top of the lifting plate (11) is fixedly connected with an iron block (12), and square holes (15) for accommodating the iron block (12) to enter and exit are formed in the suspended ceiling plate (1).

3. The smoke detection device convenient to overhaul according to claim 2, wherein the driving device comprises a worm wheel (8) fixedly sleeved on the transmission shaft (2), a motor (7) is fixedly installed on the ceiling board (1), and an output shaft of the motor (7) is in transmission connection with a worm (6) in meshed connection with the worm wheel (8).

4. A smoke detection device convenient to overhaul according to claim 3, characterized in that the lifting plate (11) is fixedly connected with positioning columns (14) distributed around the iron block (12), and the ceiling plate (1) is provided with a first through hole (10) for accommodating the positioning columns (14).

5. The smoke detection device convenient to overhaul according to claim 4, wherein a second through hole (17) for accommodating the pull ropes (5) is formed in the ceiling board (1), rollers (18) are rotatably arranged on the inner surface walls of two sides of the second through hole (17), and the pull ropes (5) are in rolling contact with the rollers (18) on two sides.

6. The smoke detection device convenient to overhaul according to claim 5, wherein a plurality of groups of transmission shafts (2) are arranged around the fixed plate (9).