Smoke sensing type fire detector

Abstract

The utility model relates to the technical field of fire detectors, in particular to a smoke sensing type fire detector which comprises a detector body, a ring body is integrally constructed on the surface of the outer side end of the detector body, a ring shell located on the outer side of the detector body is installed on the periphery of the ring body in a screwed mode, and a pipe base used for supporting is integrally constructed on the surface of the inner wall of the ring shell. A pipe sleeve is rotationally installed on the periphery of the pipe base, fan blades are assembled on the periphery of the pipe sleeve, and a coupler is assembled at the power input end of the pipe sleeve. When the smoke sensing type fire detector is used, the motor in the annular shell can be externally connected with a power supply and operate, the motor conveniently drives the pipe sleeve rotationally installed on the periphery of the pipe base in the annular shell to rotate through the coupler, and the pipe sleeve can drive the fan blades to synchronously rotate and can extract external air; and when dense smoke appears, the efficiency of the dense smoke entering the interior of the detector body can be improved, and therefore early warning can be conducted in time.

Description

Technical Field

[0001] The utility model relates to the technical field of fire detectors, in particular to a smoke-type fire detector. Background Art

[0002] A smoke detector, also known as a smoke sensor, a smoke-type fire detector, a smoke detector, a smoke detector probe and a smoke sensor, is mainly applied to a fire protection system and also has applications in the construction of a security system. The smoke detector can detect the early smoke formed by a fire to achieve the purpose of early fire warning. The patent number CN202020417231.3 discloses a temperature-sensing and smoke-sensing composite fire detector. By arranging an electric push rod and a friction ball, the electric push rod drives the friction ball to move back and forth, and the friction ball rubs a first filter screen and a second filter screen. When the first filter screen and the second filter screen are electrostatically charged, the dust filtering and absorption effects of the first filter screen and the second filter screen are good. However, since the smoke-type fire detector needs the smoke particles to enter its detection end independently to detect the smoke and the fire, and the freely flowing smoke is easy to float around, the efficiency of the contact between the detector and the smoke is low. For this reason, we propose a smoke-type fire detector. Content of the Utility Model

[0003] Aiming at the problems in the prior art, the utility model provides a smoke-type fire detector.

[0004] The technical solution adopted by the utility model to solve its technical problems is a smoke-type fire detector, which includes a detector main body. An annular body is integrally formed on the outer surface of the detector main body, and an annular shell located outside the detector main body is screwed on the outer circumference of the annular body. A pipe seat for support is integrally formed on the inner wall surface of the annular shell, and a pipe sleeve is rotatably installed on the outer circumference of the pipe seat. A fan blade is assembled on the outer circumference of the pipe sleeve, and a coupling is assembled at the power input end of the pipe sleeve. A motor is assembled at the power input end of the coupling.

[0005] A speed reducer located inside the pipe sleeve is assembled on the outer surface of the pipe seat at the outer end, and a clamping shaft is assembled at the power input and output ends of the speed reducer. A sleeve engaged with the clamping shaft is assembled inside the pipe sleeve. A disk rod is rotatably installed on the outer wall surface of the annular shell and is in transmission connection with the power output end of the speed reducer. A scraping plate is assembled on the outer wall surface of the disk rod, and a brush hair abutted against the annular shell is assembled on one side of the scraping plate close to the annular shell.

[0006] By adopting the above technical solution, when the smoke detector is in use, the motor inside the ring housing can be externally connected to a power source and operate. The motor can conveniently drive the sleeve rotatably installed on the outer periphery of the inner pipe seat in the ring housing through a coupling, so that the sleeve can drive the fan blades to rotate synchronously and extract external air, thereby improving the efficiency of air entering the detector main body. When thick smoke appears, the efficiency of the thick smoke entering the detector main body can be improved, so as to give an early warning in time;

[0007] When the motor operates and drives the fan blades to rotate, since the clamping shaft and the sleeve in the sleeve are inserted and transmitted with each other, the sleeve can provide power for the speed reducer through the sleeve and the clamping shaft. After the power is reduced by the speed reducer, it drives the disk rod on the outer periphery of the ring housing to rotate slowly, and the disk rod drives the scraper and the brush to scrape and clean the dust and sundries attached to the outer wall surface of the ring housing, thereby reducing the influence of the dust and sundries on the internal structure of the ring housing, and enabling the fan blades and the detector main body to operate more stably.

[0008] Specifically, a chuck is assembled at one end of the motor away from the coupling, and a disk seat is assembled on the outer wall surface of the detector main body. A cross socket that is snap-fitted with the chuck is integrally formed inside the disk seat.

[0009] By adopting the above technical solution, the chuck at the bottom of the motor can be conveniently fitted with the disk seat on the outer periphery of the detector main body, and can be inserted into the cross socket inside the disk seat, which is convenient for clamping and locking the position of the motor, so that the motor cannot rotate under the reaction force, thereby enabling the motor to drive the sleeve on the outer periphery of the pipe seat to rotate through the coupling, and enabling the sleeve to drive the fan blades to rotate and generate suction.

[0010] Specifically, concave holes are formed on the outer peripheral surface of the ring housing, and there are multiple groups of concave holes.

[0011] By adopting the above technical solution, the concave holes make the disassembly and assembly of the ring housing more convenient.

[0012] Specifically, a rubber pad is bonded to one side of the ring housing close to the detector main body.

[0013] By adopting the above technical solution, the rubber pad has a certain elasticity, thereby reducing the condition of abrasion and damage caused by friction between the ring housing and the detector main body.

[0014] Specifically, a filter screen layer is assembled inside the inner side of the open end of the outer periphery of the ring housing.

[0015] By adopting the above technical solution, the filter screen layer on the outer periphery of the ring housing is convenient for intercepting dust and sundries, thereby reducing the condition of dust and sundries entering the inside of the ring housing.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The technical solution of this application, through the design of the ring body, ring shell, pipe seat, pipe sleeve, fan blade, coupling and motor, when the smoke detector is in use, can make the motor inside the ring shell be externally powered and operate. The motor can conveniently drive the pipe sleeve rotatably installed on the outer circumference of the pipe seat inside the ring shell through the coupling, so that the pipe sleeve can drive the fan blade to rotate synchronously and can extract external air, thereby improving the efficiency of air entering the detector main body. When thick smoke appears, it can improve the efficiency of thick smoke entering the detector main body, so as to give an early warning in time.

[0018] 2. The technical solution of this application, through the design of the reducer, clamping shaft, sleeve, disc rod, scraper and brush bristles, when the motor operates and drives the fan blade to rotate, since the clamping shaft and the sleeve in the pipe sleeve are inserted and transmitted with each other, the pipe sleeve can provide power for the reducer through the sleeve and the clamping shaft. After the power is decelerated by the reducer, it drives the disc rod on the outer circumference of the ring shell to rotate slowly, and the disc rod drives the scraper and the brush bristles to scrape and clean the dust and sundries attached to the outer wall surface of the ring shell, thereby reducing the influence of dust and sundries on the internal structure of the ring shell, and enabling the fan blade and the detector main body to operate more stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following further describes the present utility model in conjunction with the drawings and embodiments.

[0020] Figure 1 Is an axonometric view of the present utility model;

[0021] Figure 2 Is a schematic plan view of the connection structure between the ring shell and the ring body of the present utility model;

[0022] Figure 3 Is a schematic plan view of the transmission structure between the motor and the disc rod of the present utility model;

[0023] In the figure: 1. Detector main body; 2. Ring body; 3. Ring shell; 4. Pipe seat; 5. Pipe sleeve; 6. Fan blade; 7. Coupling; 8. Motor; 9. Reducer; 10. Clamping shaft; 11. Sleeve; 12. Disc rod; 13. Scraper; 14. Brush bristles; 15. Chuck; 16. Disc seat; 17. Cross socket; 18. Filter screen layer; 19. Concave hole; 20. Rubber pad. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model is further described below in conjunction with the specific embodiments.

[0025] Please refer to Figures 1-3, an embodiment of the present utility model provides a technical solution: a smoke-type fire detector, including a detector main body 1. An annular body 2 is integrally formed on the outer end surface of the detector main body 1, and an annular shell 3 located outside the detector main body 1 is threadedly installed on the outer periphery of the annular body 2. A pipe seat 4 for support is integrally formed on the inner wall surface of the annular shell 3, and a pipe sleeve 5 is rotatably installed on the outer periphery of the pipe seat 4. A fan blade 6 is assembled on the outer periphery of the pipe sleeve 5, and a coupling 7 is assembled at the power input end of the pipe sleeve 5. A motor 8 is assembled at the power input end of the coupling 7; a speed reducer 9 located inside the pipe sleeve 5 is assembled on the outer end surface of the pipe seat 4, and a clamping shaft 10 is assembled at the power input and output end of the speed reducer 9. A sleeve 11 that is snap-fitted with the clamping shaft 10 is assembled inside the pipe sleeve 5. A disk rod 12 that is drivingly connected to the power output end of the speed reducer 9 is rotatably installed on the outer wall surface of the annular shell 3, and a scraping plate 13 is assembled on the outer wall surface of the disk rod 12. A brush hair 14 that abuts against the annular shell 3 is assembled on one side of the scraping plate 13 close to the annular shell 3.

[0026] During use, when using the smoke-type fire detector, the motor 8 inside the annular shell 3 can be externally powered and operated. The motor 8 can conveniently drive the pipe sleeve 5 rotatably installed on the outer periphery of the pipe seat 4 inside the annular shell 3 through the coupling 7, so that the pipe sleeve 5 can drive the fan blade 6 to rotate synchronously and extract external air, thereby improving the efficiency of air entering the detector main body 1. When thick smoke appears, it can improve the efficiency of thick smoke entering the detector main body 1, so as to give an early warning in time.

[0027] When the motor 8 operates and drives the fan blade 6 to rotate, since the clamping shaft 10 and the sleeve 11 in the pipe sleeve 5 are inserted and transmitted with each other, the pipe sleeve 5 can provide power for the speed reducer 9 through the sleeve 11 and the clamping shaft 10. After the power is decelerated by the speed reducer 9, it drives the disk rod 12 on the outer periphery of the annular shell 3 to rotate slowly, and the disk rod 12 drives the scraping plate 13 and the brush hair 14 to scrape and clean the dust and debris attached to the outer wall surface of the annular shell 3, thereby reducing the influence of dust and debris on the internal structure of the annular shell 3 and enabling the fan blade 6 and the detector main body 1 to operate more stably.

[0028] As Figure 2 and Figure 3 shown, a chuck 15 is assembled at one end of the motor 8 away from the coupling 7, and a disk seat 16 is assembled on the outer wall surface of the detector main body 1. A cross socket 17 that is snap-fitted with the chuck 15 is integrally formed inside the disk seat 16.

[0029] During use, the chuck 15 at the bottom of the motor 8 facilitates mutual engagement with the disc seat 16 on the outer periphery of the detector main body 1 and can be inserted into the cross socket 17 inside the disc seat 16, facilitating the clamping and locking of the position of the motor 8, so that the motor 8 cannot rotate under the reaction force. Thus, the motor 8 can drive the sleeve 5 on the outer periphery of the pipe seat 4 to rotate through the coupling 7, and the sleeve 5 can drive the fan blade 6 to rotate and generate suction.

[0030] As Figure 1 and Figure 2 shown, a concave hole 19 is formed on the outer peripheral surface of the ring shell 3, and there are multiple groups of concave holes 19.

[0031] During use, the concave hole 19 makes the disassembly and assembly of the ring shell 3 more convenient.

[0032] As Figure 1 and Figure 2 shown, a rubber pad 20 is bonded to the side of the ring shell 3 close to the detector main body 1.

[0033] During use, the rubber pad 20 has a certain elasticity, thereby reducing the situation of abrasion and damage caused by friction between the ring shell 3 and the detector main body 1.

[0034] As Figure 1 and Figure 2 shown, a filter screen layer 18 is assembled inside the inner opening end of the outer periphery of the ring shell 3.

[0035] During use, the filter screen layer 18 on the outer periphery of the ring shell 3 facilitates the interception of dust and sundries, thereby reducing the situation of dust and sundries entering the inside of the ring shell 3.

[0036] The working principle and usage process of the present utility model: During use, first install the corresponding structural components in appropriate positions. When using the smoke type fire detector, the motor 8 inside the ring shell 3 can be externally powered and operate. The motor 8 can conveniently drive the sleeve 5 rotatably installed on the outer periphery of the pipe seat 4 inside the ring shell 3 to rotate through the coupling 7, so that the sleeve 5 can drive the fan blade 6 to rotate synchronously and can extract external air, thereby improving the efficiency of air entering the inside of the detector main body 1. When thick smoke appears, it can improve the efficiency of thick smoke entering the inside of the detector main body 1, thereby giving an early warning in a timely manner. At the same time, when the motor 8 operates and drives the fan blade 6 to rotate, since the clamping shaft 10 is inserted into and transmits power with the sleeve 11 in the sleeve 5, the sleeve 5 can provide power for the speed reducer 9 through the sleeve 11 and the clamping shaft 10. The power drives the disc rod 12 on the outer periphery of the ring shell 3 to rotate slowly after being decelerated by the speed reducer 9, and the disc rod 12 drives the scraper 13 and the brush bristles 14 to scrape and clean the dust and sundries attached to the outer wall surface of the ring shell 3, thereby reducing the influence of dust and sundries on the internal structure of the ring shell 3 and enabling the fan blade 6 and the detector main body 1 to operate more stably.

[0037] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of protection required by the present utility model. The scope of protection required by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A smoke-type fire detector, characterized in that, The detector comprises a detector body (1), wherein the outer end surface of the detector body (1) is integrally formed with a ring body (2), and the outer periphery of the ring body (2) is screwed with an annular shell (3) located outside the detector body (1), the inner wall surface of the annular shell (3) is integrally formed with a pipe seat (4) for support, and the outer periphery of the pipe seat (4) is rotatably mounted with a pipe sleeve (5), the outer periphery of the pipe sleeve (5) is equipped with a fan blade (6), and the power input end of the pipe sleeve (5) is equipped with a coupling (7), and the power input end of the coupling (7) is equipped with a motor (8); The outer end surface of the pipe seat (4) is equipped with a reducer (9) located inside the pipe sleeve (5), and the power input and output end of the reducer (9) is equipped with a clamping shaft (10), and the pipe sleeve (5) is equipped with a sleeve (11) that is clamped and connected with the clamping shaft (10). The outer wall surface of the annular shell (3) is rotatably equipped with a disk rod (12) that is transmission-connected with the power output end of the reducer (9), and the outer wall surface of the disk rod (12) is equipped with a scraper (13), and the scraper (13) is equipped with bristles (14) that abut against the annular shell (3) on a side close to the annular shell (3).

2. The smoke-type fire detector according to claim 1, characterized in that, A chuck (15) is mounted on one end of the motor (8) away from the coupling (7), and a disc seat (16) is mounted on the outer wall surface of the detector body (1). A cross socket (17) is integrally constructed in the disc seat (16) and is engaged with the chuck (15).

3. The smoke-type fire detector according to claim 1, characterized in that, The outer peripheral surface of the ring shell (3) is provided with concave holes (19), and there are multiple groups of concave holes (19).

4. The smoke-type fire detector according to claim 1, characterized in that A rubber pad (20) is bonded to a surface of the annular shell (3) close to the detector body (1).

5. A smoke-type fire detector according to claim 1, characterized in that, A filter layer (18) is mounted on the inner side of the outer peripheral opening end of the annular shell (3).

Images