Fire smoke alarm detection device

Abstract

The invention relates to the technical field of fire smoke alarm production, in particular to a fire smoke alarm detection device which comprises a supporting table, an equipment transverse plate is fixedly installed on the upper end face of the supporting table through arranged supporting columns, and a position adjusting mechanism used for adjusting the position of an alarm is arranged on the equipment transverse plate. A position adjusting, supporting and adjusting integrated operation model is adopted, the smoke alarm sensitivity of the alarm under the conditions of different space sizes, installation positions, heights, temperatures, smoke volumes and smoke concentrations is detected, and the smoke alarm sensitivity of the alarm under the conditions of different space sizes, installation positions, heights, temperatures, smoke volumes and smoke concentrations is detected by adjusting the position, height and supporting mode of the alarm and combining accurate control over the space sizes, the temperatures, the smoke volumes and the smoke concentrations. Various actual use environments are simulated in an omnibearing manner, the system is closer to actual fire conditions, and a more real test environment is provided for testing, so that the sensitivity and performance of the alarm under different conditions are comprehensively evaluated, accurate and reliable data are obtained through comprehensive testing, and meanwhile, the performance of the alarm in different fire stages is truly reflected.

Claims

1. A fire smoke alarm detection device, comprising a support platform (1), characterized in that: The upper end surface of the support platform (1) is fixedly mounted with a device transverse plate (2) via a support column, the upper end surface of the support platform (1) is fixedly mounted with a limit rail (3) located below the device transverse plate (2), and a positioning mechanism (4) for adjusting the position of the alarm is provided on the device transverse plate (2); The position adjustment mechanism (4) comprises a downward moving part (41) arranged on the equipment horizontal plate (2), the downward moving part (41) is provided with a rotating part (42) for adjusting the position of the alarm by rotation and lifting, and the rotating part (42) is provided with a moving part (43) for fixing the alarm and horizontally moving its position; A support mechanism (5) is provided on the support platform (1), and an adjustment mechanism (6) is provided on the support mechanism (5) for cooperating with the support mechanism to adjust the size of the test space where the alarm is located; The support mechanism (5) comprises a support portion (51) arranged on the support platform (1), and a driving portion (52) for providing power to the adjustment mechanism (6) is arranged on the limiting guide rail (3); The adjustment mechanism (6) comprises a blocking portion (61) arranged on the support portion (51) and used to form a rectangular test space; the driving portion (52) is provided with a matching portion (62) used to match with the blocking portion (61); the blocking portion (61) is provided with a locking portion (63) used to match with the downward moving portion (41) to lock the blocking portion (61); and the blocking portion (61) is also provided with a control portion (64) used to provide smoke of different temperatures, volumes and concentrations into the rectangular space formed by the blocking portion (61); The positioning mechanism (4), the supporting mechanism (5) and the adjusting mechanism (6) cooperate to test the smoke alarm sensitivity of the alarm under different conditions of space, position, height, temperature, smoke volume and smoke concentration.

2. A fire smoke alarm detection device according to claim 1, characterized in that: The downward moving part (41) comprises a first electric push rod (411), a downward moving plate (412) and a convex support plate (413); the upper end surface of the equipment transverse plate (2) is fixedly mounted with a left-right symmetrical first electric push rod (411); the lower ends of the telescopic ends of the left-right symmetrical first electric push rods (411) are jointly fixedly mounted with a downward moving plate (412) located below the equipment transverse plate (2); and the convex support plate (413) is fixedly mounted at the center of the upper end surface of the downward moving plate (412).

3. A fire smoke alarm detection device according to claim 2, characterized in that: The rotating part (42) comprises a first motor (421), a spline sleeve (422), a spline shaft (423) and a second electric push rod (424); the upper end surface of the downward moving plate (412) is penetrated by a bearing and is installed with a spline sleeve (422) located below the horizontal section of the shaped support plate (413); the first motor (421) is fixedly installed on the shaped support plate (413); the output end of the first motor (421) is connected to the spline sleeve (422) through a first gear set; the second electric push rod (424) is fixedly installed on the upper end surface of the horizontal section of the shaped support plate (413); the spline shaft (423) is slidably penetrated in the spline sleeve (422); the upper end of the spline shaft (423) is connected to the telescopic end of the second electric push rod (424) through a bearing.

4. A fire smoke alarm detection device according to claim 3, characterized in that: The moving part (43) comprises an electric slide rail (431) and a fixed seat (432); the electric slide rail (431) is fixedly mounted on the lower end of the spline shaft (423); and the fixed seat (432) for fixing the alarm is fixedly mounted on the moving end of the electric slide rail (431).

5. A fire smoke alarm detection device according to claim 1, characterized in that: The support portion (51) comprises a first slideway (511), a first slider (512) and a U-shaped limit block (513); the upper end surface of the support platform (1) is provided with two groups of first slideways (511) symmetrical with respect to the limit guide rail (3); the two groups of first slideways (511) are respectively located at positions close to two ends of two diagonals of the support platform (1); a first slider (512) is slidably mounted in the first slideway (511); a U-shaped limit block (513) is fixedly mounted on the upper end surface of the first slider (512); and matching sockets are penetrated through the ends of the four first sliders (512) that are away from each other.

6. A fire smoke alarm detection device according to claim 5, characterized in that: The driving part (52) comprises a bidirectional screw (521), a second motor (522) and a right-angle slide (523); the bidirectional screw (521) is installed in the limiting guide rail (3) through a bearing; a limiting plate is fixedly installed at the center of the upper end surface of the limiting guide rail (3); the second motor (522) whose output end is fixedly connected to the bidirectional screw (521) is fixedly installed on the upper end surface of the support platform (1); a right-angle slide (523) symmetrical to the limiting plate is slidably installed in the limiting guide rail (3); and the right-angle slide (523) is threadedly connected to the bidirectional screw (521).

7. A fire smoke alarm detection device according to claim 6, characterized in that: The blocking portion (61) comprises a blocking plate (611), a second slideway (612) and a second slider (613); a blocking plate (611) located above the corresponding first slider (512) is slidably installed between the vertical sections of the U-shaped limit block (513); four blocking plates (611) are staggered in sequence to form a rectangular test space; a second slideway (612) is provided on one side wall of the four blocking plates (611) close to each other; a second slider (613) is slidably installed in the second slideway (612); and the second slider (613) is fixedly connected to the corresponding blocking plate (611).

8. A fire smoke alarm detection device according to claim 7, characterized in that: The matching portion (62) comprises a support plate (621) and a roller (622); the upper end surface of the right-angle slide plate (523) is fixedly mounted with a support plate (621) located below the corresponding blocking plate (611); the upper end surface of the support plate (621) is rotatably mounted with a roller (622) symmetrical with respect to the corresponding blocking plate (611) via a set shaft.

9. A fire smoke alarm detection device according to claim 7, characterized in that: The locking portion (63) includes a third slideway (631), a third slider (632), an insertion rod (633) and a locking hole (634). A third slideway (631) is provided on one side wall of the four blocking plates (611) which are away from each other. A third slider (632) is slidably installed in the third slideway (631). An insertion rod (633) is slidably installed on the upper end surface of the third slider (632). The lower end of the insertion rod (633) is slidably connected to the corresponding matching insertion hole. A spring is fixedly installed between the insertion rod (633) and the third slider (632). A plurality of locking holes (634) which are matched with the corresponding insertion rods (633) are provided in a linear array on the lower end surface of the first slideway (511).

10. A fire smoke alarm detection device according to claim 7, characterized in that: The control unit (64) comprises a hot air pipe (641), a temperature display (642), a U-shaped smoke inlet pipe (643) and a smoke vent (644), wherein the hot air pipe (641) and the temperature display (642) are fixedly mounted on one of the baffle plates (611), a U-shaped smoke inlet pipe (643) penetrating the upper end surface thereof and located in a rectangular test space formed by four baffle plates (611) is fixedly mounted on the support platform (1), and a smoke vent (644) is fixedly connected to the U-shaped smoke inlet pipe (643).

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