Detection device of smoke fire detector

Abstract

The detection device comprises a moving box, a cigarette storage box is fixed to the left side in the moving box, a lower connecting pipe is arranged on the upper wall of the moving box in a penetrating mode, the lower end of the lower connecting pipe is located in the cigarette storage box and communicates with the cigarette storage box, the lower connecting pipe is in threaded connection with the moving box, and a rubber cylinder is fixed to the outer wall of the lower connecting pipe; the lower wall of the rubber barrel is fixed to the upper wall of the moving box, the rubber barrel is elastic, a plurality of upper connecting pipes are arranged above the rubber barrel, the screws enter the upper connecting pipes in a rotating mode, the upper connecting pipes are selected for connection according to the height of the sampling holes, the lowest screw enters the lower connecting pipe in a rotating mode, and the height of the upper connecting pipes is adjusted by rotating the lower connecting pipe; comburent is put in through the opening fan, the smoke generating device is started, the draught fan sucks smoke, the smoke enters the upper connecting pipe through the smoke storage box, and detection is conducted on the detector; after the detection is finished, the fan sucks air, the smoke enters the fan through the upper connecting pipe, and the redundant smoke is discharged after being filtered through the filtering holes of the smoke generating device.

Description

Technical Field

[0001] This application relates to the technical field of fire detectors, and in particular to a detection device for a smoke detector. Background Technology

[0002] Fire detectors are devices in automatic fire alarm systems used to detect fires and send alarm signals; they are also known as the system's "sensory organs." Fire detectors monitor the occurrence of fires in the environment, and once they detect the characteristic physical quantities of a fire, they convert these quantities into electrical signals and immediately send an alarm signal to the fire alarm controller. This function makes fire detectors play a crucial role in fire prevention and early warning.

[0003] Aspirating smoke detectors, also known as air sampling fire detectors or very early fire detectors, are devices that use an air sampling tube to draw air from a protected area into the detector for analysis, thereby providing early fire warnings. Because the sampling network of aspirating smoke detectors is located high up, traditional smoke detectors are difficult to use. The publication "CN217404969U: A Detection Device for an Aspirating Smoke Detector" discloses a method where the upper end of a detection sleeve of adjustable length is connected to the sampling hole of the aspirating smoke detector's sampling network, and the lower end of the detection sleeve is connected to a smoke supply device to achieve fire detection. However, in this device, the detection sleeve is segmented, with one sleeve sliding inside another. Its height is difficult to adjust and fix according to actual conditions, and the sliding of the sleeve indicates poor sealing at the connection. Furthermore, the device does not treat the smoke inside the pipe after use; after contraction, the smoke in the detection sleeve will escape, affecting the surrounding environment. Therefore, to solve the above problems, this application provides a detection device for a smoke detector. Utility Model Content

[0004] To address the problems of difficulty in adjusting and fixing the height of the detection sleeve as needed and the easy escape of smoke, this application provides a detection device for a smoke detector.

[0005] This application provides a detection device for a smoke detector, comprising a movable box. A smoke storage box is fixedly installed on the left side inside the movable box. A lower connecting pipe is provided through the upper wall of the movable box. The outer wall of the lower connecting pipe is threaded. The lower end of the lower connecting pipe is located inside and communicates with the smoke storage box. The lower connecting pipe is threadedly connected to the movable box. A rubber cylinder is fixedly connected to the upper end of the outer wall of the lower connecting pipe. The lower wall of the rubber cylinder is fixedly connected to the upper wall of the movable box. The rubber cylinder is elastic. The rubber cylinder, the outer wall of the lower connecting pipe, and the upper wall of the movable box form a sealed cavity. Several vertically arranged upper connecting pipes are arranged above the rubber cylinder. The length of the threaded portion of the lower connecting pipe is greater than the length of the upper connecting pipe.

[0006] Preferably, each of the upper connecting pipes is coaxially fixedly connected to a screw rod below it. The screw rod is hollow and communicates with the upper connecting pipe. Each screw rod passes through the upper wall of the upper connecting pipe below it and is threadedly connected to and communicates with the upper connecting pipe below it. The lowest screw rod passes through the upper wall of the lower connecting pipe and is threadedly connected to it. This screw rod is communicated with the lower connecting pipe.

[0007] Preferably, a sealing ring is fixedly provided on the upper end of the outer wall of the screw.

[0008] Preferably, a smoke-generating device is fixedly installed on the right side inside the mobile box, and the ventilation holes of the smoke-generating device are equipped with filters.

[0009] Preferably, a fan is fixedly installed inside the mobile box. The fan is a dual-purpose blower and suction fan, with one vent connected to the inside of the smoke storage box through an exhaust pipe, and the other vent connected to the inside of the smoke generating device through an air inlet pipe.

[0010] Preferably, the upper end of the mobile box is rotatably equipped with an opening fan, and the smoke generating device is connected to the outside through the opening fan.

[0011] Preferably, a button is provided on the upper wall of the mobile box, and the button is communicatively connected to the fan and the smoke generating device through the processor inside the mobile box.

[0012] Preferably, a sampling mesh tube is provided above the mobile box, and a sampling hole is provided on the lower wall of the sampling mesh tube.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] The upper connecting pipe is accessed by rotating a screw. The appropriate number of upper connecting pipes are selected and connected according to the height of the sampling hole. A sealing ring ensures a tight seal at the connection. The lower screw then rotates to access the lower connecting pipe, adjusting the height of the uppermost connecting pipe. Combustion is introduced by turning on the fan, activating the smoke-generating device. The fan draws in smoke, which passes through a smoke collection box into the upper connecting pipe for detection. After detection, the fan draws in air, and smoke enters the fan through the upper connecting pipe. Excess smoke is filtered through the filter holes of the smoke-generating device and discharged. Compared to the comparison document, this device can be adjusted arbitrarily according to the height of the detection point, and the smoke is recovered after detection, making it both practical and environmentally friendly. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure in Embodiment 1 of this application;

[0016] Figure 2 This is a schematic diagram of the internal structure of the mobile box in Embodiment 1 of this application;

[0017] Figure 3This is a schematic diagram of the connection between the upper connecting pipe and the lower connecting pipe in Embodiment 1 of this application;

[0018] Figure 4 This is a schematic diagram of the upper connecting pipe connection in Embodiment 1 of this application.

[0019] Explanation of reference numerals in the attached drawings: 1. Moving box; 2. Upper connecting pipe; 3. Sealing ring; 4. Rubber cylinder; 5. Button; 6. Screw; 7. Opening fan; 8. Sampling mesh tube; 9. Sampling hole; 10. Smoke storage box; 11. Smoke generating device; 12. Fan; 13. Exhaust pipe; 14. Inlet pipe; 15. Lower connecting pipe. Detailed Implementation

[0020] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0021] Example 1

[0022] Reference Figure 1-4 A detection device for a smoke detector includes a movable box 1, a sampling network tube 8 is provided on the top of the movable box 1, and a sampling hole 9 is provided on the lower wall of the sampling network tube 8. The sampling hole 9 is the suction position of the aspirating smoke detector, and the detection device is aligned with the sampling hole 9 to perform detection.

[0023] A smoke collection box 10 is fixedly installed on the left side inside the mobile box 1. A lower connecting pipe 15 is installed through the upper wall of the mobile box 1. The outer wall of the lower connecting pipe 15 is threaded. The lower end of the lower connecting pipe 15 is located inside and connected to the smoke collection box 10. The lower connecting pipe 15 is threadedly connected to the mobile box 1. A rubber cylinder 4 is fixedly connected to the upper end of the outer wall of the lower connecting pipe 15. The lower wall of the rubber cylinder 4 is fixedly connected to the upper wall of the mobile box 1. The rubber cylinder 4 is elastic. The rubber cylinder 4, the outer wall of the lower connecting pipe 15, and the upper wall of the mobile box 1 form a sealed cavity to prevent smoke from escaping from the connection. Several vertically arranged upper connecting pipes 2 are arranged above the rubber cylinder 4. The length of the threaded part of the lower connecting pipe 15 is greater than the length of the upper connecting pipe 2, so that the adjustment range of the lower connecting pipe 15 is greater than the length of the upper connecting pipe 2. That is, the sampling height can be adjusted arbitrarily within the length of the upper connecting pipe 2, thereby achieving the purpose of arbitrarily adjusting the height.

[0024] Each upper connecting pipe 2 is coaxially fixedly connected to a screw 6 below it. The screw 6 is hollow and communicates with the upper connecting pipe 2. Each screw 6 passes through the upper wall of the upper connecting pipe 2 below it and is threadedly connected to and communicates with the upper connecting pipe 2 below it. The lowest screw 6 passes through the upper wall of the lower connecting pipe 15 and is threadedly connected to and communicates with the lower connecting pipe 15. A sealing ring 3 is fixedly installed on the upper end of the outer wall of each screw 6. The sealing ring 3 ensures a seal at the connection, making it difficult for smoke to escape.

[0025] A smoke-generating device 11 is fixedly installed on the right side inside the mobile box 1. The smoke-generating device 11 is a conventional ignition device, that is, combustible material is put into the smoke-generating device 11 to burn and produce smoke, which is a known technology. The vent of the smoke-generating device 11 is equipped with a filter screen. When burning or when the smoke is recovered, the pressure can be balanced through the vent, and the filter screen can filter the smoke.

[0026] A fan 12 is fixedly installed inside the mobile box 1. The fan 12 is a dual-purpose blower and suction fan. One of its vents is connected to the inside of the smoke storage box 10 through the exhaust pipe 13, and the other vent is connected to the inside of the smoke generating device 11 through the air inlet pipe 14.

[0027] The upper end of the mobile box 1 is rotatably equipped with an opening fan 7. The smoke generating device 11 is connected to the outside through the opening fan 7. Combustible materials can be introduced into the smoke generating device 11 through the opening fan 7. A sealing ring can also be set at the connection between the opening fan 7 and the mobile box 1.

[0028] The upper wall of the mobile box 1 is equipped with a button 5. The button 5 is connected to the fan 12 and the smoke generating device 11 through the processor inside the mobile box 1. There are multiple buttons 5, which are used to control the opening and closing of the fan 12, the blowing and sucking of the fan 12, and the opening and closing of the smoke generating device 11.

[0029] In practical use, the upper connecting pipe 2 is first rotated by the screw 6. The appropriate number of upper connecting pipes 2 are selected and connected according to the height of the sampling hole 9. The sealing ring 3 ensures a tight seal at the connection. The lower screw 6 rotates to the lower connecting pipe 15. Rotating the lower connecting pipe 15 adjusts the height of the uppermost connecting pipe 2. The rubber cylinder 4 prevents smoke from escaping. Combustion is introduced by turning on the fan 7, activating the smoke-generating device 11. The fan 12 draws in smoke from the smoke-generating device 11 and through the smoke storage box 10 into the upper connecting pipe 2 for detection. After detection, the fan 12 draws in air, and the smoke enters the fan 12 through the upper connecting pipe 2 and is discharged towards the smoke-generating device 11. Excess smoke is filtered through the filter holes of the smoke-generating device 11 and discharged. This device can be adjusted arbitrarily according to the height of the detection point, and the smoke is recovered after detection, making it practical while protecting the environment.

[0030] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0031] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0032] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0033] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A detection device for a smoke detector, comprising a movable housing (1), characterized in that: A cigarette storage box (10) is fixedly installed on the left side inside the mobile box (1). A lower connecting pipe (15) is provided through the upper wall of the mobile box (1). The outer wall of the lower connecting pipe (15) is threaded. The lower end of the lower connecting pipe (15) is located inside the cigarette storage box (10) and communicates with it. The lower connecting pipe (15) is threadedly connected to the mobile box (1). A rubber cylinder (4) is fixedly connected to the upper end of the outer wall of the lower connecting pipe (15). The lower wall of the rubber cylinder (4) is fixedly connected to the upper wall of the mobile box (1). The rubber cylinder (4) is elastic. The rubber cylinder (4), the outer wall of the lower connecting pipe (15), and the upper wall of the mobile box (1) form a sealed cavity. Several vertically arranged upper connecting pipes (2) are provided above the rubber cylinder (4). The length of the threaded part of the lower connecting pipe (15) is greater than the length of the upper connecting pipe (2).

2. The detection device for a smoke detector according to claim 1, characterized in that: Each of the upper connecting pipes (2) is coaxially fixedly connected with a screw (6) below it. The screw (6) is hollow and communicates with the upper connecting pipe (2). The screw (6) is set through the upper wall of the upper connecting pipe (2) below it. The screw (6) is threadedly connected to and communicates with the upper connecting pipe (2) below it. The lowest screw (6) is set through the upper wall of the lower connecting pipe (15) and threadedly connected to it. The screw (6) is connected to the lower connecting pipe (15).

3. The detection device for a smoke detector according to claim 2, characterized in that: A sealing ring (3) is fixedly installed on the upper end of the outer wall of the screw (6).

4. The detection device for a smoke detector according to claim 1, characterized in that: A smoke-generating device (11) is fixedly installed on the right side inside the mobile box (1), and a filter screen is installed in the ventilation hole of the smoke-generating device (11).

5. The detection device for a smoke detector according to claim 4, characterized in that: The mobile box (1) is equipped with a fan (12), which is a blower and a suction fan. One of its vents is connected to the inside of the smoke storage box (10) through an exhaust pipe (13), and the other vent is connected to the inside of the smoke generating device (11) through an air inlet pipe (14).

6. The detection device for a smoke detector according to claim 4, characterized in that: The upper end of the mobile box (1) is rotatably equipped with an opening fan (7), and the smoke generating device (11) is connected to the outside through the opening fan (7).

7. The detection device for a smoke detector according to claim 5, characterized in that: A button (5) is provided on the upper wall of the mobile box (1). The button (5) is connected to the fan (12) and the smoke generating device (11) through the processor inside the mobile box (1).

8. The detection device for a smoke detector according to claim 1, characterized in that: A sampling network tube (8) is provided above the mobile box (1), and a sampling hole (9) is provided on the lower wall of the sampling network tube (8).

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