Sensitivity detection device for fire-fighting smoke detector

Abstract

The utility model relates to the technical field of fire-fighting appliances, in particular to a sensitivity detection device for a fire-fighting smoke detector. The fire-fighting smoke detector sensitivity detection device comprises a frame body, an aerosol generator is fixedly installed on one side of the top of the frame body, and a supporting assembly and an exhaust assembly are erected on the other side of the top of the frame body. According to the sensitivity detection device for the fire-fighting smoke detector, when the sensitivity of the smoke detector is detected, a worker does not need to hold the sensitivity detection device by hand in the whole operation process, so that the fatigue degree of the worker can be reduced in the subsequent multiple detection processes, and the use experience of the sensitivity detection device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire fighting appliance technical field especially, relates to a fire smoke detector sensitivity detection device. BACKGROUND

[0002] Fire smoke detector, also known as smoke fire detector, is a fire-fighting equipment that realizes fire warning by monitoring smoke density, and is mainly applied to places such as residences, shops and warehouses. In order to ensure that the fire alarm device is always in good condition and can correctly alarm when a fire occurs, on-site regulations require that the smoke fire detector be tested every quarter.

[0003] The existing Chinese patent with publication number CN212990306U is a smoke fire detector sensitivity test device. According to the content recorded in the specification, the device is mainly operated by a worker holding an insulating rod during use. This operation method increases the labor intensity of the worker during continuous use.

[0004] Therefore, it is necessary to provide a new fire smoke detector sensitivity detection device to solve the above technical problems. UTILITY MODEL CONTENT

[0005] To solve the above technical problems, the utility model provides a fire smoke detector sensitivity detection device.

[0006] The fire smoke detector sensitivity detection device provided by the utility model comprises a frame body, an aerosol generator is fixedly arranged on one side of the top of the frame body, and a supporting assembly and an exhaust assembly are arranged on the other side of the top of the frame body.

[0007] The supporting assembly comprises a first supporting frame, two first supporting frames are symmetrically arranged above the frame body, a second supporting frame is slidably connected in the first supporting frame, and a third supporting frame is slidably connected in the second supporting frame.

[0008] The exhaust assembly comprises a supporting plate, the supporting plate is fixedly installed at the top of the third supporting frame, a fixedly connected exhaust cover is installed at the top of the supporting plate, and a connecting hose is fixedly installed in communication between the exhaust end of the aerosol generator and the exhaust cover.

[0009] Preferably, a first blocking frame is fixedly connected to the top end of the first supporting frame, a second blocking frame is fixedly connected to the top end of the second supporting frame, the inner wall specification of the first blocking frame is smaller than that of the first supporting frame, and the inner wall specification of the second blocking frame is smaller than that of the second supporting frame.

[0010] Preferably, the bottom end of the second support frame and the third support frame is provided with a fixedly connected support block, the outer wall of the support block of the second support frame abuts against and is slidably connected with the inner wall of the first support frame, and the outer wall of the support block of the third support frame abuts against and is slidably connected with the inner wall of the second support frame.

[0011] Preferably, the outer wall of the two support blocks is provided with a fixedly connected protruding rod, the outer wall of the protruding rod is provided with a threadedly connected limiting sleeve, and the end of the limiting sleeve abuts against the outer wall of the corresponding first support frame and second support frame.

[0012] Preferably, the top end of the exhaust cover is provided with a fixedly connected rubber ring, and a plurality of annular exhaust holes are formed in the interior of the exhaust cover.

[0013] Preferably, the side of the top of the frame body, away from the aerosol generator, is provided with a fixedly connected mounting bracket, a rotationally connected drive lead screw is inserted into the interior of the mounting bracket, a threadedly connected supporting frame is sleeved on the outer wall of the drive lead screw, and the top of the supporting frame is fixedly connected with the bottom end of the first support frame.

[0014] Preferably, a fixedly connected laser lamp is mounted in the interior of the mounting bracket, a through hole is formed in the side wall of the supporting frame opposite the laser lamp, a fixedly connected positioning strip is sleeved on the outer wall of the middle support rod of the mounting bracket, and the length from the center of the laser lamp to the outer wall of the positioning strip is the same as the length of half the width of the supporting frame.

[0015] Compared with the related art, the fire-fighting smoke detector sensitivity detection device has the following beneficial effects:

[0016] 1. When the sensitivity of the smoke detector is detected, the whole operation process does not need to be manually held by the staff, so that the labor degree of the staff can be reduced in the subsequent multiple detection processes, and the use experience of the device is improved.

[0017] 2. The exhaust assembly is arranged, the exhaust cover is fixedly sleeved outside the smoke detector to be detected during use, so that the smoke generated by the aerosol generator can be accurately transported to the smoke detector, the smoke can be more accurately diffused outside the smoke detector, the influence of the smoke concentration on the sensitivity of the smoke detector can be reduced in the detection process, and the detection accuracy is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The structure diagram of a preferred embodiment of the fire-fighting smoke detector sensitivity detection device is provided.

[0019] Figure 2 The Figure 1Structure schematic view of connection of the support assembly, the exhaust assembly and the mounting rack shown in the figure;

[0020] Figure 3 For Figure 2 Structure schematic view of expansion of the support assembly shown in the figure;

[0021] Figure 4 For Figure 2 Structure schematic view of part of the exhaust assembly shown in the figure;

[0022] Figure 5 For Figure 2 Structure schematic view of the mounting rack and components thereof shown in the figure.

[0023] Reference numerals in the figure: 1, rack body; 2, aerosol generator; 3, support assembly; 31, first support frame; 311, first blocking frame; 32, second support frame; 321, second blocking frame; 33, third support frame; 34, support block; 341, protruding rod; 342, limiting sleeve; 4, exhaust assembly; 41, support plate; 42, exhaust cover; 421, rubber ring; 422, exhaust hole; 43, connecting hose; 5, mounting rack; 51, driving lead screw; 52, supporting frame; 521, through hole; 53, laser lamp; 54, positioning strip. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the utility model clearer and more apparent, the utility model is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and are not used to limit the utility model.

[0025] The specific implementation of the utility model is described in detail below in combination with specific examples.

[0026] Please refer to Figures 1 to 5 The fire smoke detector sensitivity detection device provided by the utility model embodiment includes a rack body 1, an aerosol generator 2 is fixedly arranged on one side of the top of the rack body 1, and a support assembly 3 and an exhaust assembly 4 are arranged on the other side of the top of the rack body 1.

[0027] In the embodiment of the utility model, please refer to Figures 1 to 5The support assembly 3 comprises a first support frame 31, the first support frame 31 is arranged above the frame body 1 in a symmetrical mode, a second support frame 32 is arranged in the first support frame 31 in a sliding mode, a third support frame 33 is arranged in the second support frame 32 in a sliding mode, a first blocking frame 311 is arranged at the top of the first support frame 31 in a fixed mode, a second blocking frame 321 is arranged at the top of the second support frame 32 in a fixed mode, the inner wall specification of the first blocking frame 311 is smaller than that of the first support frame 31, and the inner wall specification of the second blocking frame 321 is smaller than that of the second support frame 32, a support block 34 is arranged at the bottom of the second support frame 32 and the third support frame 33 in a fixed mode, the outer wall of the support block 34 at the bottom of the second support frame 32 is in abutment with and connected to the inner wall of the first support frame 31 in a sliding mode, the outer wall of the support block 34 at the bottom of the third support frame 33 is in abutment with and connected to the inner wall of the second support frame 32 in a sliding mode, a convex rod 341 is arranged on the outer wall of the two support blocks 34 in a fixed mode, a limiting sleeve 342 is arranged on the outer wall of the convex rod 341 in a threaded mode, and the end of the limiting sleeve 342 is in abutment with the outer wall of the first support frame 31 and the second support frame 32.

[0028] It should be noted that, when the device is used, the exhaust hood 42 can be smoothly lifted up by the extension of the plurality of support frames in the support assembly 3, so that the exhaust hood 42 is stably sleeved outside the smoke detector to be detected, so that the exhaust hood 42 can smoothly transport smoke in the later period, and the entire operation process does not need to be held by the staff, so that the labor degree of the staff can be reduced in the subsequent detection process, and the use experience of the device is improved.

[0029] In the embodiment of the utility model, please refer to Figures 1 to 5 The exhaust assembly 4 comprises a support plate 41, the support plate 41 is fixedly installed at the top of the third support frame 33, the support plate 41 is provided with an exhaust hood 42 connected in a fixed mode, a connecting hose 43 is arranged between the inside of the exhaust hood 42 and the exhaust end of the aerosol generator 2 in a fixed mode, the top of the exhaust hood 42 is provided with a rubber ring 421 connected in a fixed mode, and a plurality of exhaust holes 422 are arranged in the inside of the exhaust hood 42 in a ring mode.

[0030] It should be noted that, through the setting of the rubber ring 421, when the exhaust hood 42 is adjusted upwards and the top is in abutment with the ceiling, the rubber ring 421 can reduce the damage to the ceiling when the exhaust hood 42 is in abutment with the ceiling;

[0031] And the smoke is transported by the exhaust hood 42, so that the smoke can be more accurately diffused outside the smoke detector, so that the smoke with the set concentration can be more uniformly diffused outside the smoke detector in the detection process, so that the influence of the smoke concentration on the sensitivity detection of the smoke detector can be reduced, and the detection accuracy can be improved.

[0032] Meanwhile, by the opening of the exhaust hole 422, when the aerosol generator 2 works, the smoke gas entering the exhaust cover 42 can flow out smoothly, and the smoke can be in a flowing state, thereby reducing the change of smoke concentration caused by the smoke gathering in the exhaust cover 42.

[0033] In the embodiment of the utility model, please refer to Figures 1 to 5 The mounting rack 5 is internally provided with a driving screw rod 51 connected in rotation, a supporting frame 52 connected in screw is sleeved on the outer wall of the driving screw rod 51, the top of the supporting frame 52 is fixedly connected with the bottom end of the first supporting frame 31, the mounting rack 5 is internally provided with a laser lamp 53 connected in a fixed mode, a through hole 521 is formed in the position opposite to the laser lamp 53 on the side wall of the supporting frame 52, a positioning strip 54 connected in a fixed mode is sleeved on the outer wall of the support rod in the mounting rack 5, and the length from the center of the laser lamp 53 to the outer wall of the positioning strip 54 is the same as the length of half the width of the supporting frame 52.

[0034] It should be noted that: since the length from the center of the laser lamp 53 to the outer wall of the positioning strip 54 is the same as the length of half the width of the supporting frame 52, when the light beam generated by the laser lamp 53 is projected on the bottom of the smoke detector to determine the position of the device, the driving screw rod 51 can drive the supporting frame 52 and the supporting assembly 3 and the exhaust assembly 4 on the top of the supporting frame 52 to move, when the outer wall of the supporting frame 52 abuts against the outer wall of the positioning strip 54, the center of the exhaust cover 42 in the exhaust assembly 4 can be on the same vertical line with the center of the laser lamp 53, and the exhaust cover 42 can be sleeved on the outside of the smoke detector when the exhaust cover 42 is adjusted upward later.

[0035] In the embodiment, a screw rod protection sleeve is sleeved on the outside of the driving screw rod 51 between the mounting rack 5 and the supporting frame 52 to protect the driving screw rod 51, so that dust falling on the threads of the driving screw rod 51 during use can be reduced to prevent the driving screw rod 51 from being jammed, and the driving screw rod 51 can work stably.

[0036] The working principle of the fire smoke detector sensitivity detection device is as follows:

[0037] When the device is used, the staff can first move the device to the required position and turn on the laser lamp 53, at this time, the light beam emitted by the laser lamp 53 is projected upward on the ceiling, at this time, the staff can adjust the position of the mounting rack 1 until the light beam is projected on the smoke detector, and the position of the device can be adjusted.

[0038] Then the driving screw 51 can be controlled to rotate, and the rotating driving screw 51 can drive the supporting frame 52 and the components on the top of the supporting frame 52 to move towards the direction close to the laser lamp 53 until the outer wall of the supporting frame 52 abuts against the outer wall of the positioning strip 54, and then the rotation of the driving screw 51 is stopped, so that the center point of the exhaust cover 42 is on the same vertical line with the light beam of the laser lamp 53;

[0039] After the position of the exhaust cover 42 is adjusted, the third supporting frame 33 can be lifted upwards first, and then the corresponding supporting block 34 below can be driven to slide synchronously in the second supporting frame 32, when the corresponding supporting block 34 abuts against the second blocking frame 321 on the top of the second supporting frame 32, the limiting sleeve 342 on the outer wall thereof can be controlled to rotate on the outer wall of the convex rod 341 until the end of the limiting sleeve 342 abuts against the outer wall of the corresponding second supporting frame 32, and then the third supporting frame 33 can be fixed;

[0040] Similarly, the above steps can be repeated to lift the second supporting frame 32, and the height of the exhaust cover 42 is further adjusted, so that the exhaust cover 42 can be located outside the smoke detector to be detected smoothly, after the adjustment of the exhaust cover 42 is completed, the aerosol generator 2 can be controlled to work, and the working aerosol generator 2 can guide the generated smoke gas into the exhaust cover 42 through the connecting hose 43;

[0041] Since the exhaust cover 42 is located outside the smoke detector, the smoke concentration outside the smoke detector can be more accurately controlled, the influence of the smoke concentration on the detection is reduced, and the accuracy of the sensitivity detection of the smoke detector is improved, and during the detection process, the staff does not need to perform hand operation, and during the multiple detection processes, the labor degree of the staff can be reduced, so that the use experience of the device can be improved.

[0042] The circuit and the control involved in the utility model are prior art, and will not be described in detail here.

[0043] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion according to the contents of the utility model specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the utility model.

Claims

1. A sensitivity detection device for fire smoke detectors, characterized in that, include: The frame (1) has an aerosol generator (2) fixedly mounted on one side of the top of the frame (1), and a support assembly (3) and an exhaust assembly (4) mounted on the other side of the top of the frame (1). The support component (3) includes a first support frame (31), two of which are symmetrically distributed above the frame (1), a second support frame (32) is inserted inside the first support frame (31) and a third support frame (33) is inserted inside the second support frame (32). The exhaust assembly (4) includes a support plate (41), which is fixedly installed on the top of the third support frame (33). An exhaust hood (42) is fixedly connected to the top of the support plate (41), and a connecting hose (43) is fixedly installed between the interior of the exhaust hood (42) and the exhaust end of the aerosol generator (2).

2. The fire smoke detector sensitivity detection device according to claim 1, characterized in that, The top of the first support frame (31) is fixedly connected to a first baffle (311), and the top of the second support frame (32) is fixedly connected to a second baffle (321). The inner wall specification of the first baffle (311) is smaller than that of the inner wall specification of the first support frame (31), and the inner wall specification of the second baffle (321) is smaller than that of the inner wall specification of the second support frame (32).

3. The fire smoke detector sensitivity detection device according to claim 2, characterized in that, The bottom ends of the second support frame (32) and the third support frame (33) are both equipped with fixedly connected support blocks (34). The outer wall of the support block (34) at the bottom end of the second support frame (32) abuts against and slides against the inner wall of the first support frame (31), and the outer wall of the support block (34) at the bottom end of the third support frame (33) abuts against and slides against the inner wall of the second support frame (32).

4. The fire smoke detector sensitivity detection device according to claim 3, characterized in that, Both of the support blocks (34) are equipped with fixedly connected protruding rods (341) on their outer walls. The outer walls of the protruding rods (341) are fitted with threaded limiting sleeves (342), and the ends of the limiting sleeves (342) abut against the outer walls of the corresponding first support frame (31) and second support frame (32).

5. The fire smoke detector sensitivity detection device according to claim 1, characterized in that, The top of the exhaust hood (42) is fitted with a fixed rubber ring (421), and the interior of the exhaust hood (42) is provided with a plurality of annularly distributed exhaust holes (422).

6. The fire smoke detector sensitivity detection device according to claim 1, characterized in that, A mounting bracket (5) is fixedly connected to the top of the frame (1) on the side away from the aerosol generator (2). A drive screw (51) is rotatably connected inside the mounting bracket (5). A support frame (52) with a threaded connection is fitted on the outer wall of the drive screw (51). The top of the support frame (52) is fixedly connected to the bottom of the first support frame (31).

7. The fire smoke detector sensitivity detection device according to claim 6, characterized in that, The mounting bracket (5) is equipped with a fixedly connected laser lamp (53). The side wall of the support frame (52) is provided with a through opening (521) opposite to the laser lamp (53). The support rod in the mounting bracket (5) is fitted with a fixedly connected positioning strip (54). The length from the center of the laser lamp (53) to the outer wall of the positioning strip (54) is the same as half the width of the support frame (52).

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