Automatic trigger type fire-fighting detector function testing device

Abstract

The invention relates to an automatic triggering type fire-fighting detector function testing device, and belongs to the technical field of fire-fighting device testing equipment. Comprising a movable push box, a lifting device, a smoke hood, a rack, a case, a simulated fire parameter generator, a control unit and a feedback signal acquisition unit, the lifting device can extend to a detection position, through accurate positioning and controllable analog signal output, the consistency of test conditions is guaranteed, the result is objective and accurate, unnecessary interference or damage to the detector is avoided, a tester does not need to climb up or make close contact with the detector, the risk of high-altitude operation is completely eradicated, and the labor cost and the labor intensity are reduced; a feedback signal acquisition unit is built in to form a closed-loop control system, so that whether the smoke concentration in the smoke guide hood reaches an effective trigger threshold value or not can be monitored and judged in real time, a successful result is automatically recorded, subjective errors caused by manual judgment are eliminated, and the accuracy and traceability of testing are ensured; the whole device realizes standardization, intellectualization and unmanned operation of fire-fighting detector testing.

Description

Technical Field

[0001] This invention belongs to the technical field of fire protection device testing equipment, specifically relating to an automatic trigger-type fire detector functional testing device. Background Technology

[0002] Fire detectors (such as smoke, heat, and flame detectors) are core components of automatic fire alarm systems, and their proper functioning is crucial. Current national standards require regular functional testing of detectors. Currently, testing methods primarily rely on manual methods using tools such as smoke extractors and heaters. This requires personnel to climb to heights and operate at close range, posing safety risks associated with working at heights. Furthermore, this method is time-consuming, labor-intensive, inefficient, and results in significant smoke dispersion. Manual operation also makes it difficult to accurately control the amount of smoke, temperature, and distance and angle from the detector. This approach fails to meet the urgent needs of modern large-scale building complexes for efficient, standardized, and intelligent testing of fire protection facilities. Summary of the Invention

[0003] To overcome the problems of the prior art, which requires testing personnel to climb to heights and operate at close range, posing safety risks of high-altitude operations, and is time-consuming, labor-intensive, inefficient, and prone to serious smoke dispersion, and where manual operation makes it difficult to accurately control the amount of smoke, temperature, and distance and angle from the detector; and which cannot meet the urgent need of modern large-scale building complexes for efficient, standardized, and intelligent testing of fire protection facilities, this invention provides an automatic triggering fire detector functional testing device.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution: An automatic trigger-type fire detector functional testing device mainly includes a movable push box 1, a lifting device 2, a smoke hood 3, a frame 4, a chassis 5, a simulated fire parameter generator, a control unit, and a feedback signal acquisition unit. The lifting device 2 is installed inside the movable push box 1, the frame 4 is installed on top of the lifting device 2, the smoke hood 3 is installed on top of the frame 4, the chassis 5 is installed at the bottom of the frame 4, the control unit is installed inside the chassis 5, and the feedback signal acquisition unit is installed inside the smoke hood 3. The simulated fire parameter generator includes a smoke generator, a temperature rise generator 6, and a flame radiation simulator 7. The smoke generator is installed inside the chassis 5 and is connected to the bottom of the smoke hood 3 through a smoke guide hose 8. The temperature rise generator 6 and the flame radiation simulator 7 are installed inside the smoke hood 3, and the bottom of the smoke hood 3 is provided with an air outlet 9. The control unit is electrically connected to the lifting device 2, the smoke generator, the temperature rise generator 6, and the flame radiation simulator 7, respectively, and the feedback signal acquisition unit is electrically connected to the control unit.

[0005] Furthermore, the smoke generator is a device that generates aerosols of a specific particle size based on heating atomization or compressed air atomization.

[0006] Furthermore, the smoke hood 3 has a hemispherical structure, and a support edge 31 is provided at the edge of the smoke hood 3. The support edge 31 is connected to the frame 4 by a spring 32. The two ends of the spring 32 are fixed to the bottom of the support edge 31 and the top of the frame 4, respectively. The smoke hood 3 is floatingly mounted on the top of the frame 4 by the spring 32.

[0007] Furthermore, a sealing ring 33 is installed on the support edge 31 of the fume hood 3.

[0008] Furthermore, the control unit integrates a wireless communication module for communicating with the fire alarm control panel or remote monitoring center.

[0009] Furthermore, the feedback signal acquisition unit includes a smoke concentration sensor, a temperature sensor, and a flame sensor.

[0010] Furthermore, the lifting device 2 includes a fixed sleeve 21, a multi-stage telescopic sleeve 22, and a multi-stage cylinder. The fixed sleeve 21 is installed upright inside the movable push box 1. The multi-stage telescopic sleeve 22 is sequentially telescopically connected to the fixed sleeve 21. The multi-stage cylinder is installed inside the fixed sleeve 21 and is connected to the multi-stage telescopic sleeve 22 in a transmission manner.

[0011] Furthermore, the top of the mobile push box 1 is provided with an opening 11 for the housing 5 to be inserted after the lifting device 2 is lowered, and the side of the mobile push box 1 is provided with a maintenance door to facilitate the maintenance of the control system of the lifting device 2.

[0012] Furthermore, the bottom of the movable push box 1 is provided with casters 12 for easy movement, and a push-pull handle 13 is provided on one side of the movable push box 1.

[0013] The beneficial effects of this invention are: This invention extends to the detection position via a lifting device. Through precise positioning and controllable analog signal output, it ensures consistent test conditions and objective, accurate results, avoiding unnecessary interference or damage to the detector. Test personnel do not need to climb or have close contact with the detector, completely eliminating the risks of working at heights and reducing labor costs and intensity. The built-in feedback signal acquisition unit forms a closed-loop control system that can monitor and determine in real time whether the smoke concentration inside the smoke hood has reached the effective trigger threshold, automatically recording successful results, eliminating subjective errors from manual judgment, and ensuring the accuracy and traceability of the test. The entire device realizes standardized, intelligent, and unmanned operation of fire detector testing. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of the invention in its non-working state.

[0015] Figure 2 This is a three-dimensional schematic diagram of the working state of the present invention.

[0016] Figure 3This is a three-dimensional schematic diagram of the smoke hood, frame, chassis, and simulated fire parameter generator of the present invention.

[0017] Figure 4 This is a partial cross-sectional structural schematic diagram of the smoke hood, frame, chassis, and simulated fire parameter generator of the present invention.

[0018] Figure 5 This is the circuit diagram of the control unit of the present invention.

[0019] Figure 6 This is the circuit diagram of the smoke concentration sensor of the present invention.

[0020] Figure 7 This is the circuit diagram of the temperature sensor of the present invention.

[0021] Figure 8 This is the circuit diagram of the flame sensor of the present invention. Detailed Implementation

[0022] To make the objectives, technical solutions, and beneficial effects of the present invention clearer, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so as to facilitate understanding by those skilled in the art.

[0023] This invention discloses an automatic trigger-type fire detector functional testing device. The device mainly includes a movable push box 1, a lifting device 2, a smoke hood 3, a frame 4, a chassis 5, a simulated fire parameter generator, a control unit, and a feedback signal acquisition unit. The lifting device 2 is installed inside the movable push box 1, the frame 4 is installed on top of the lifting device 2, the smoke hood 3 is installed on top of the frame 4, the chassis 5 is installed at the bottom of the frame 4, the control unit is installed inside the chassis 5, and the feedback signal acquisition unit is installed inside the smoke hood 3. The simulated fire parameter generator includes a smoke generator, a temperature rise generator 6, and a flame radiation simulator 7. The smoke generator is installed inside the chassis 5 and is connected to the bottom of the smoke hood 3 via a smoke guide hose 8. The temperature rise generator 6 and the flame radiation simulator 7 are installed inside the smoke hood 3, and the bottom of the smoke hood 3 has an air outlet 9. The control unit is connected to the lifting device 2, the smoke hood 3, and the control unit. The generator, temperature rise generator 6, and flame radiation simulator 7 are electrically connected, and the feedback signal acquisition unit is electrically connected to the control unit. The control unit triggers the simulated fire parameter generator to work, and at the same time verifies the detector function through the feedback signal acquisition unit. The device can be extended to the detection position through the lifting device 2. Through precise positioning and controllable simulated signal output, the consistency of test conditions is ensured, the results are objective and accurate, and unnecessary interference or damage to the detector is avoided. Test personnel do not need to climb or have close contact with the detector, completely eliminating the risk of working at height, reducing labor costs and labor intensity. The built-in feedback signal acquisition unit forms a closed-loop control system, which can monitor and determine in real time whether the smoke concentration in the smoke hood has reached the effective trigger threshold, automatically record successful results, eliminate subjective errors of manual judgment, and ensure the accuracy and traceability of the test. The whole device realizes the standardization, intelligence and unmanned operation of fire detector testing.

[0024] The aforementioned smoke generator is a device that generates aerosols of a specific particle size based on heating atomization or compressed air atomization.

[0025] The fume hood 3 has a hemispherical structure. A support edge 31 is provided at the edge of the fume hood 3. The support edge 31 is connected to the frame 4 by a spring 32. The two ends of the spring 32 are fixed to the bottom of the support edge 31 and the top of the frame 4, respectively. The fume hood 3 is floatingly installed on the top of the frame 4 by the spring 32. The floating installation of the fume hood 3 can reduce the levelness requirements of the moving push box 1, reduce the levelness requirements of the floor and ceiling of the testing workshop, increase the range of equipment use, and has strong applicability.

[0026] A sealing ring 33 is installed on the support edge 31 of the fume hood 3 to reduce the amount of smoke and reduce the impact of testing on the workshop environment.

[0027] The control unit integrates a wireless communication module for communicating with the fire alarm control panel or remote monitoring center, and automatically uploads test time, detector number, and test result information. The control unit has built-in test plan management software that supports automatic execution of periodic batch tests according to schedule, area, or detector type, and generates structured test reports.

[0028] The feedback signal acquisition unit includes a smoke concentration sensor, a temperature sensor, and a flame sensor.

[0029] The lifting device 2 includes a fixed sleeve 21, a multi-stage telescopic sleeve 22, and a multi-stage cylinder. The fixed sleeve 21 is installed upright inside the movable push box 1. The multi-stage telescopic sleeve 22 is telescopically connected to the fixed sleeve 21 in sequence. The multi-stage cylinder is installed inside the fixed sleeve 21 and is connected to the multi-stage telescopic sleeve 22 in a transmission connection.

[0030] The top of the mobile push box 1 is provided with a lifting device 2, which allows the machine box 5 to be inserted after being lowered. The side of the mobile push box 1 is provided with a maintenance door to facilitate the maintenance of the lifting device 2 control system.

[0031] The movable push box 1 is equipped with casters 12 at the bottom for easy movement, and a push-pull handle 13 is provided on one side of the movable push box 1.

[0032] Work process: The mobile push box 1 is manually pushed to position it below the detector to be tested. The lifting device 2 is activated to place the smoke hood 3 over the detector. The control unit activates the simulated fire parameter generator to release smoke at the standard smoke concentration and starts timing simultaneously. The feedback signal acquisition unit monitors the alarm signal in real time. If the alarm signal of the detector is received within the preset time, it is determined that the test is "passed" and recorded as successful; otherwise, it is determined that the test is "failed", recorded and reported for repair. After the test is completed, the control unit automatically uploads a report containing the test time, location, and results to the property management system and fire protection maintenance platform through the wireless communication module. The lifting device 2 can extend to the detection position. Through precise positioning and controllable analog signal output, it ensures the consistency of test conditions, and the results are objective and accurate, avoiding unnecessary interference or damage to the detector. Test personnel do not need to climb or have close contact with the detector, completely eliminating the risk of working at height, reducing labor costs and labor intensity. The built-in feedback signal acquisition unit forms a closed-loop control system, which can monitor and determine in real time whether the smoke concentration in the smoke hood has reached the effective trigger threshold, automatically record successful results, eliminate subjective errors of human judgment, and ensure the accuracy and traceability of the test. The whole device realizes the standardization, intelligence and unmanned operation of fire detector testing.

[0033] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of the present invention.

Claims

1. An automatic trigger-type fire detector functional testing device, characterized in that: The automatic trigger-type fire detector functional testing device includes a movable push box (1), a lifting device (2), a smoke hood (3), a frame (4), a chassis (5), a simulated fire parameter generator, a control unit, and a feedback signal acquisition unit. The lifting device (2) is installed inside the movable push box (1), the frame (4) is installed on top of the lifting device (2), the smoke hood (3) is installed on top of the frame (4), the chassis (5) is installed at the bottom of the frame (4), the control unit is installed inside the chassis (5), and the feedback signal acquisition unit is installed inside the smoke hood (3). The simulated fire parameter generator described includes a smoke generator, a temperature rise generator (6), and a flame radiation simulator (7). The smoke generator is installed inside the chassis (5) and is connected to the bottom of the smoke hood (3) through a smoke guide hose (8). The temperature rise generator (6) and the flame radiation simulator (7) are installed inside the smoke hood (3). The bottom of the smoke hood (3) is provided with an air outlet (9). The control unit is electrically connected to the lifting device (2), the smoke generator, the temperature rise generator (6), and the flame radiation simulator (7), respectively. The feedback signal acquisition unit is electrically connected to the control unit.

2. The automatic trigger-type fire detector functional testing device as described in claim 1, characterized in that: The aforementioned smoke generator is a device that generates aerosols of a specific particle size based on heating atomization or compressed air atomization.

3. The automatic trigger-type fire detector functional testing device as described in claim 1 or 2, characterized in that: The smoke hood (3) is a hemispherical structure. A support edge (31) is provided at the edge of the smoke hood (3). The support edge (31) is connected to the frame (4) by a spring (32). The two ends of the spring (32) are fixed to the bottom of the support edge (31) and the top of the frame (4) respectively. The smoke hood (3) is floated on the top of the frame (4) by the spring (32).

4. The automatic trigger-type fire detector functional testing device as described in claim 3, characterized in that: A sealing ring (33) is installed on the support edge (31) of the smoke hood (3).

5. The automatic trigger-type fire detector functional testing device as described in any one of claims 1, 2, and 4, characterized in that: The control unit integrates a wireless communication module for communicating with the fire alarm control panel or remote monitoring center.

6. The automatic trigger-type fire detector functional testing device as described in claim 5, characterized in that: The feedback signal acquisition unit includes a smoke concentration sensor, a temperature sensor, and a flame sensor.

7. The automatic trigger-type fire detector functional testing device as described in any one of claims 1, 2, 4, and 6, characterized in that: The lifting device (2) includes a fixed sleeve (21), a multi-stage telescopic sleeve (22), and a multi-stage cylinder. The fixed sleeve (21) is installed upright in the movable push box (1). The multi-stage telescopic sleeve (22) and the fixed sleeve (21) are connected in a telescopic manner. The multi-stage cylinder is installed in the fixed sleeve (21) and is connected to the multi-stage telescopic sleeve (22) in a transmission connection.

8. The automatic trigger-type fire detector functional testing device as described in claim 7, characterized in that: The mobile push box (1) is provided with a lifting device (2) at the top, which lowers the machine box (5) into an open opening (11). The side of the mobile push box (1) is provided with a maintenance door to facilitate the maintenance of the lifting device (2) control system.

9. The automatic trigger-type fire detector functional testing device as described in claim 8, characterized in that: The bottom of the mobile push box (1) is equipped with casters (12) for easy movement, and a push-pull handle (13) is provided on one side of the mobile push box (1).

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