Smoke detector with high detection sensitivity

Abstract

The utility model discloses a kind of smoke detector with high detection sensitivity, it is related to smoke detector technical field, including fixed frame, rotating frame is rotationally arranged in fixed frame inner wall, rotating frame side wall is fixedly connected with collection pipe in circumferential arrangement, the lower end of each collection pipe outer wall is fixedly connected with collection port, rotating frame middle part is rotationally arranged with fan blade, rotating frame side wall is fixedly connected with connecting plate one, the utility model is rotated by starting motor driving rotating shaft, to drive fan blade to rotate, device rotates air in external environment from collection port and collection pipe into rotating frame and fixed frame by fan blade, and air collected is transported to detection bin by input pipe, the smoke density of air in detection bin is detected by smoke detector body, the detection range of device can be increased by setting multiple rotatable collection pipes, greatly improve the sensitivity when device detects.

Description

Technical Field

[0001] This utility model relates to the field of smoke detector technology, and in particular to a smoke detector with high detection sensitivity. Background Technology

[0002] Smoke detectors, also known as smoke-sensitive fire detectors, smoke detectors, smoke probes, and smoke sensors, are mainly used in fire protection systems and also have applications in security system construction. Smoke detectors primarily achieve fire prevention by monitoring the concentration of smoke. Smoke detectors use ionization smoke sensing internally. Ionization smoke sensors are a technologically advanced, stable, and reliable sensor that is widely used in various fire alarm systems and has a performance far superior to gas-sensitive resistor-type fire alarms.

[0003] Currently, smoke detectors are generally installed on the ceiling (or wall top) indoors. Due to the limited detection range of smoke detectors, they can only have good detection sensitivity within their effective detection range. For some indoor spaces with large detection environments, the detection sensitivity of current smoke detectors is relatively low. Therefore, multiple smoke detectors need to be installed in the room, which increases the procurement cost. At the same time, installing multiple smoke detectors also requires more manpower.

[0004] Therefore, it is necessary to improve the existing technology to solve the above-mentioned technical problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a smoke detector with high detection sensitivity, thus solving the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a smoke detector with high detection sensitivity, comprising a fixed frame, a rotating frame rotatably mounted on the inner wall of the fixed frame, collection tubes circumferentially fixedly connected to the side wall of the rotating frame, a collection port fixedly connected to the lower end of the outer wall of each collection tube, a fan blade rotatably mounted in the middle of the fixed frame, a connecting plate fixedly connected to the side wall of the fixed frame, a detection chamber fixedly mounted on the upper end of the outer wall of the connecting plate, an input tube fixedly connected between the detection chamber and the fixed frame, and an output tube and a smoke detector body fixedly mounted on the side wall of the detection chamber.

[0007] As a further technical solution of this utility model, a rotating sleeve is fixedly installed at the lower end of the outer wall of the fixed frame, and an annular rotating block is fixedly connected to the side wall of the rotating frame, and the annular rotating block is rotatably connected to the rotating sleeve.

[0008] As a further technical solution of this utility model, a rotating shaft is rotatably connected to the upper side of the inner wall of the fixed frame, and the fan blade is fixedly connected to the rotating shaft.

[0009] As a further technical solution of this utility model, the upper end of the outer wall of the fixed frame is symmetrically fixedly connected with support plates, and the upper end of the outer wall of the two support plates is simultaneously fixedly installed with mounting seats, and mounting holes are arranged in a circular pattern on the mounting seats.

[0010] As a further technical solution of this utility model, an installation plate is welded between the front and rear support plates, and a motor is fixedly installed on the lower side of the outer wall of the installation plate. The upper end of the outer wall of the rotating shaft passes through the fixed frame and is fixedly connected to the output end of the motor.

[0011] As a further technical solution of this utility model, a ring gear is fixedly installed on the side wall of the rotating frame, a connecting plate is fixedly connected to the side wall of the fixed frame, a rotating rod is rotatably connected to the connecting plate, a gear is fixedly connected to the lower end of the outer wall of the rotating rod, the gear is meshed with the ring gear, a pulley is fixedly connected to the side wall of the rotating shaft above the rotating frame, a pulley is fixedly connected to the upper end of the outer wall of the rotating rod, and a transmission belt is connected between the pulley and the pulley.

[0012] This invention provides a smoke detector with high detection sensitivity, which has the following advantages compared with the prior art: 1. This utility model uses a starting motor to drive a rotating shaft to rotate, which in turn drives the fan blades to rotate. The rotation of the fan blades pumps air from the external environment into the fixed frame and rotating frame through the collection port and collection pipe. The collected air is then transported to the detection chamber through the input pipe. The smoke detector body detects the smoke concentration in the air in the detection chamber. By setting multiple rotatable collection pipes, the detection range of the device can be increased, which greatly improves the sensitivity of the device during detection.

[0013] 2. When this utility model is in use, when the rotating shaft rotates, it can drive the first pulley to rotate, thereby driving the transmission belt and the second pulley to rotate, which in turn causes the rotating rod and the second gear to rotate. When the second gear rotates, it will drive the first ring gear and the rotating frame to rotate, so that the device only needs to install one motor as a power source to drive the rotation of the fan blade and the rotating frame simultaneously, making the internal structure of the device simpler and more practical, and reducing the cost required for the production and manufacturing of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a front view of the present invention; Figure 3 This is an internal sectional view of the fixed frame and the rotating frame of this utility model; Figure 4 This is a schematic diagram of the connection between the fan blade and the fixing frame of this utility model; Figure 5 This is a schematic diagram of the structure of the annular rotating block of this utility model.

[0015] In the diagram: 100, fixed frame; 110, rotating sleeve; 120, ring-shaped rotating block; 200, rotating frame; 210, collecting pipe; 220, collecting port; 300, fan blade; 310, rotating shaft; 320, mounting plate; 330, motor; 400, connecting plate one; 410, detection chamber; 420, input pipe; 430, output pipe; 440, smoke detector body; 500, ring gear one; 510, connecting plate two; 520, rotating rod; 530, gear two; 600, pulley one; 610, pulley two; 620, transmission belt; 700, support plate; 710, mounting base; 720, mounting hole. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-5This utility model provides a technical solution for a smoke detector with high detection sensitivity: it includes a fixed frame 100, a rotating frame 200 rotatably mounted on the inner wall of the fixed frame 100, collection tubes 210 circumferentially fixedly connected to the side wall of the rotating frame 200, a collection port 220 fixedly connected to the lower end of the outer wall of each collection tube 210, a fan blade 300 rotatably mounted in the middle of the fixed frame 100, a connecting plate 400 fixedly connected to the side wall of the fixed frame 100, and a detection chamber 410 fixedly mounted on the upper end of the outer wall of the connecting plate 400. An input pipe 420 is fixedly connected between the detection chamber 410 and the fixed frame 100. An output pipe 430 and a smoke detector body 440 are fixedly installed on the side wall of the detection chamber 410. The device pumps air from the external environment into the fixed frame 100 and the rotating frame 200 through the rotation of the fan blades 300, from the collection port 220 and the collection pipe 210. The collected air is then transported to the detection chamber 410 through the input pipe 420. The smoke concentration in the air of the detection chamber 410 is detected by the smoke detector body 440. A rotating sleeve 110 is fixedly installed on the lower end of the outer wall of the fixed frame 100. An annular rotating block 120 is fixedly connected to the side wall of the rotating frame 200. The annular rotating block 120 is rotatably connected to the rotating sleeve 110, thereby enabling rotation between the rotating frame 200 and the fixed frame 100. A rotating shaft 310 is rotatably connected to the upper inner wall of the fixed frame 100. The fan blade 300 is fixedly connected to the rotating shaft 310. The device drives the fan blade 300 to rotate through the rotation of the rotating shaft 310. Support plates 700 are symmetrically fixedly connected to the upper outer wall of the fixed frame 100. Mounting seats 710 are fixedly installed on the upper outer walls of the two support plates 700. Mounting holes 720 are arranged circumferentially on the mounting seats 710. The device can be easily installed and fixed through the mounting seats 710 and the mounting holes 720 thereon.

[0018] like Figure 1-5As shown, a mounting plate 320 is welded between the front and rear support plates 700. A motor 330 is fixedly mounted on the lower outer wall of the mounting plate 320. The upper end of the outer wall of the rotating shaft 310 passes through the fixed frame 100 and is fixedly connected to the output end of the motor 330. The device drives the rotating shaft 310 to rotate by starting the motor 330. A ring gear 500 is fixedly mounted on the side wall of the rotating frame 200. A connecting plate 510 is fixedly connected to the side wall of the fixed frame 100. A rotating rod 520 is rotatably connected to the connecting plate 510. A gear 530 is fixedly connected to the lower outer wall of the rotating rod 520. The gear 530 meshes with the ring gear 500. A pulley 600 is fixedly connected to the side wall of the rotating shaft 310 above the rotating frame 200. A pulley 610 is fixedly connected to the upper outer wall of the rotating rod 520. The pulley 610 meshes with the ring gear 500. A transmission belt 620 is connected between the pulleys 600 and the drive belt 620. When the rotating shaft 310 rotates, it can drive the pulley 600 to rotate, thereby driving the drive belt 620 and the pulley 610 to rotate, which in turn causes the rotating rod 520 and the gear 530 to rotate. When the gear 530 rotates, it drives the ring gear 500 and the rotating frame 200 to rotate, so that the device can drive the fan blade 300 and the rotating frame 200 to rotate simultaneously with only one motor 330.

[0019] The working principle of this utility model is as follows: In use, the device can be easily installed and fixed through the mounting base 710 and the mounting hole 720 provided thereon. Then, the device drives the rotating shaft 310 to rotate through the starting of the motor 330. The rotation of the rotating shaft 310 drives the fan blade 300 to rotate. The device pumps air from the outside environment into the fixed frame 100 and the rotating frame 200 through the collection port 220 and the collection pipe 210 through the rotation of the fan blade 300. The collected air is then transported to the detection chamber 410 through the input pipe 420. The smoke concentration in the air in the detection chamber 410 is detected by the smoke detector body 440. The device can increase the detection range by setting multiple rotatable collection pipes 210. At the same time, when the rotating shaft 310 rotates, it can drive the pulley 600 to rotate, thereby driving the transmission belt 620 and the pulley 610 to rotate, which in turn causes the rotating rod 520 and the gear 530 to rotate. When the gear 530 rotates, it will drive the ring gear 500 and the rotating frame 200 to rotate, so that the device can drive the fan blade 300 and the rotating frame 200 to rotate simultaneously with only one motor 330.

[0020] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A smoke detector with high detection sensitivity, comprising a fixed frame (100), characterized in that: A rotating frame (200) is rotatably mounted on the inner wall of the fixed frame (100). A collection tube (210) is fixedly connected to the side wall of the rotating frame (200) in a circular arrangement. A collection port (220) is fixedly connected to the lower end of the outer wall of each collection tube (210). A fan blade (300) is rotatably mounted in the middle of the fixed frame (100). A connecting plate (400) is fixedly connected to the side wall of the fixed frame (100). A detection chamber (410) is fixedly installed on the upper end of the outer wall of the connecting plate (400). An input pipe (420) is fixedly connected between the detection chamber (410) and the fixed frame (100). An output pipe (430) and a smoke detector body (440) are fixedly installed on the side wall of the detection chamber (410).

2. The smoke detector with high detection sensitivity according to claim 1, characterized in that, A rotating sleeve (110) is fixedly installed on the lower end of the outer wall of the fixed frame (100), and an annular rotating block (120) is fixedly connected to the side wall of the rotating frame (200). The annular rotating block (120) is rotatably connected to the rotating sleeve (110).

3. A smoke detector with high detection sensitivity according to claim 1, characterized in that, A rotating shaft (310) is rotatably connected to the upper side of the inner wall of the fixed frame (100). The fan blade (300) is fixedly connected to the rotating shaft (310). The upper end of the outer wall of the rotating shaft (310) passes through the fixed frame (100) and is connected to a motor (330).

4. A smoke detector with high detection sensitivity according to claim 1, characterized in that, The upper end of the outer wall of the fixed frame (100) is symmetrically connected with support plates (700), and the upper end of the outer wall of the two support plates (700) is simultaneously fixed with mounting bases (710), and mounting holes (720) are arranged in a circular pattern on the mounting bases (710).

5. A smoke detector with high detection sensitivity according to claim 4, characterized in that, A mounting plate (320) is welded between the front and rear support plates (700), and a motor (330) is fixedly installed on the lower side of the outer wall of the mounting plate (320).

6. A smoke detector with high detection sensitivity according to claim 3, characterized in that, A ring gear 1 (500) is fixedly installed on the side wall of the rotating frame (200). A connecting plate 2 (510) is fixedly connected to the side wall of the fixed frame (100). A rotating rod (520) is rotatably connected to the connecting plate 2 (510). A gear 2 (530) is fixedly connected to the lower end of the outer wall of the rotating rod (520). The gear 2 (530) meshes with the ring gear 1 (500). A pulley 1 (600) is fixedly connected to the side wall of the rotating shaft (310) and above the rotating frame (200). A pulley 2 (610) is fixedly connected to the upper end of the outer wall of the rotating rod (520). A transmission belt (620) is connected between the pulley 2 (610) and the pulley 1 (600).

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