A smoke detector function tester

Abstract

The present application discloses a function tester for a smoke detector, which relates to the technical field of smoke detectors and includes a main body, a support device, a control device, a smoke generator, a blowing device and a smoke guiding device; the top of the main body has a test space and the interior has an installation space, and the main body is provided with a first through opening on the periphery of the test space; the support device is used to support the main body; the smoke generator and the blowing device are both arranged in the installation space, and the smoke guiding device is used to guide smoke in and out of the test space; the control device includes a rotating rod and a control panel; the rotating rod is rotatably connected to the main body, and both the blowing device and the smoke guiding device are connected to the rotating rod; the control panel is used to control the smoke generator and the blowing device. The present application can improve the reliability and accuracy of the function test of the smoke detector.

Description

Technical Field

[0001] This application relates to the technical field of smoke detectors, and in particular, to a function tester for smoke detectors. Background Art

[0002] A smoke detector is a fire-fighting device used to monitor smoke, mainly for early fire warning. When the smoke detector detects smoke, it will issue an alarm to remind people to evacuate and activate the fire extinguishing system. Therefore, the smoke detector is an important tool for fire prevention and can effectively reduce fire losses.

[0003] To ensure the reliability of the use of smoke detectors and enable smoke detectors to effectively play the role of fire prevention for a long time, the functions of smoke detectors are usually tested regularly to repair insensitive smoke detectors in a timely manner and replace faulty and damaged smoke detectors.

[0004] Currently, a Chinese utility model patent with the publication number CN219758937U discloses a function tester for smoke detectors, which can generate smoke and blow the smoke out through a fan, and test the function of the smoke detector by making the blown smoke contact the smoke detector.

[0005] However, after the above-mentioned function tester for smoke detectors blows out smoke, the smoke is greatly affected by the external environment and is prone to diffuse in the external environment. After the concentration of the smoke decreases, it may not be able to trigger the smoke detector, thus affecting the reliability and accuracy of the function test of the smoke detector. Summary of the Invention

[0006] This application provides a function tester for smoke detectors, which can effectively reduce the influence of the external environment on the function test of smoke detectors, improve the reliability and accuracy of the function test of smoke detectors, and at the same time can effectively reduce the influence of smoke on the external environment during the function test of smoke detectors.

[0007] This application provides a function tester for smoke detectors, adopting the following technical solutions:

[0008] A function tester for smoke detectors includes a main body, a support device, a control device, a smoke generator, a blowing device, and a smoke guiding device;

[0009] The top of the main body has a test space and its interior has an installation space. A first through opening communicating the test space with the installation space is provided on the main body on the periphery of the test space; the support device is arranged below the main body for supporting the main body to keep it in contact with and against the floor slab and the smoke detector is located in the test space; the control device is arranged at the bottom of the main body for controlling the smoke generator, the blowing device and the smoke guiding device; the smoke generator and the blowing device are both arranged in the installation space, and the smoke guiding device is arranged at the top of the main body and is used for guiding smoke to enter and exit the test space.

[0010] The control device includes a rotating rod and a control panel; the rotating rod is rotatably connected to the main body, its rotation axis is vertical and centered relative to the main body; one end of the rotating rod passes through the main body and the other end is located below the main body, and both the blowing device and the smoke guiding device are connected to the rotating rod; the control panel is arranged on one side of the bottom of the main body for controlling the smoke generator and the blowing device.

[0011] By adopting the above technical solution, during the process of performing a function test on the smoke detector, the main body can place the smoke detector in the test space for the function test. The blowing device blows the smoke generated by the smoke generator in the installation space into the test space through the first through opening, so that the detection effect of the smoke detector on the smoke can be observed, which can effectively reduce the influence of the external environment on the function test of the smoke detector, improve the reliability and accuracy of the function test of the smoke detector, and at the same time can effectively reduce the influence of the smoke on the external environment during the function test of the smoke detector; moreover, the staff can control the moving direction of the smoke in the test space through the control device, and at the same time can adjust the concentration of the smoke and the moving speed of the smoke, so as to be able to perform a more comprehensive and detailed function test on the smoke detector and obtain more comprehensive and accurate data.

[0012] Optionally, the blowing device includes a machine body, a first driving member and an impeller;

[0013] The machine body is arranged on the rotating rod; the impeller is rotatably connected to the machine body, and its rotation axis is perpendicular to the rotation axis of the rotating rod; the first driving member is arranged on the machine body for driving the impeller to rotate;

[0014] The direction in which the impeller rotates to drive the gas flow is aligned with the direction in which the smoke guiding device guides the smoke to enter and exit the test space in the vertical direction.

[0015] By adopting the above technical solution, it is convenient for the staff to adjust the direction of smoke movement through the rotating rod, and at the same time, it can effectively improve the efficiency and effect of the smoke in the installation space passing through the first through-port and entering the test space under the guidance of the smoke guiding device.

[0016] Optionally, the smoke guiding device includes a rotating member and two adjusting components;

[0017] The rotating member covers the first through-port and is connected to the top of the rotating rod, and the rotating member keeps covering the first through-port during the rotation of the rotating rod.

[0018] On both sides of the rotating member along the radial direction of the rotating rod, there are installation ports for installing the adjusting components. The adjusting components include a flexible belt, a plurality of driving rollers, and a second driving member;

[0019] The driving rollers are rotatably connected to the rotating member and are located in the installation ports, and their rotation axes are perpendicular to the rotation axis of the rotating rod; the flexible belt is connected end to end to form a loop and is wound around a plurality of the driving rollers at the same time; the second driving member is arranged on the rotating member and is used to drive a plurality of the driving rollers to rotate synchronously and in the same direction and is controlled by the control panel;

[0020] A smoke through-port and a smoke guiding port are formed on the flexible belt. When the smoke guiding port moves vertically along one side of the test space, the smoke guiding port remains in communication with the smoke through-port to allow the smoke in the installation space to enter the test space.

[0021] By adopting the above technical solution, by controlling the second driving member through the control panel to drive the flexible belt to move, the position of the smoke entering and leaving the test space can be adjusted vertically, so that different smoke movement situations to trigger the smoke detector can be simulated, and further, it is convenient for the staff to conduct a more comprehensive and detailed function test on the smoke detector.

[0022] Optionally, the main body is provided with a second through-port at the bottom of the test space to communicate the test space with the installation space. A plurality of smoke outlet ports are formed at a position of the rotating member close to the bottom of the test space. A cover body for controlling the opening and closing of the plurality of smoke outlet ports is movably arranged on the rotating member.

[0023] By adopting the above technical solution, it is convenient for the smoke to trigger the smoke detector from below the smoke detector through the second through-port, so that it is further convenient for the staff to conduct a more comprehensive and detailed function test on the smoke detector.

[0024] Optionally, the cover body is rotatably connected to the rotating member, and its rotation axis coincides with the rotation axis of the rotating rod. A third driving member for driving the cover body to rotate is provided on the rotating member, and the third driving member is controlled by the control panel.

[0025] By adopting the above technical solution, it is convenient for the staff to remotely control the opening and closing of the second through port through the control panel, so that it is further convenient for the staff to conduct a more comprehensive and detailed functional test on the smoke detector.

[0026] Optionally, when the flexible belt moves to the bottom of the smoke guide port close to the test space, the smoke guide port is separated from the smoke through port.

[0027] By adopting the above technical solution, during the process of triggering the smoke detector from below the smoke detector when the smoke passes through the second through port, the reliability during the functional test of the smoke detector can be effectively guaranteed, and the influence of the smoke entering the test space immediately returning to the installation space through the first through port on the test result can be reduced.

[0028] Optionally, the blowing device further includes a fourth driving member;

[0029] The machine body is rotatably connected to the rotating rod, and its rotation axis is perpendicular to the rotation axis of the impeller and perpendicular to the rotation axis of the rotating rod; the fourth driving member is arranged on the rotating rod and is used to drive the machine body to rotate relative to the rotating rod.

[0030] By adopting the above technical solution, it is convenient for the staff to adjust the blowing direction of the blowing device, so that it is convenient for the staff to control the moving direction and speed of the smoke during the process of triggering the smoke detector from below the smoke detector when the smoke passes through the second through port, and it is further convenient for the staff to conduct a more comprehensive and detailed functional test on the smoke detector.

[0031] Optionally, the smoke generator is located below the blowing device.

[0032] By adopting the above technical solution, the effect of driving the smoke generated by the smoke generator in the installation space to move by the blowing device can be effectively improved.

[0033] Optionally, the supporting device includes a plurality of lifting components, and the lifting components are controlled by the control panel;

[0034] The lifting component includes a fixing member, a movable member and a fifth driving member;

[0035] One end of the fixing member is fixedly connected to the main body, and the movable member is movably connected to the other end of the fixing member in the vertical direction; the fifth driving member is arranged on the fixing member and is used to drive the movable member to move relative to the fixing member.

[0036] By adopting the above technical solution, it is convenient for the staff to control the main body to place the smoke detector in the test space for functional testing, and it has high applicability to smoke detectors with different installation heights.

[0037] Optionally, an elastic pad is arranged on the top of the main body. When the main body contacts and abuts against the floor slab, the elastic pad seals the gap between the main body and the floor slab.

[0038] By adopting the above technical solution, the probability of smoke spreading to the external environment can be further reduced, the influence of the external environment on the functional test of the smoke detector can be effectively reduced, the influence of the smoke on the external environment during the functional test of the smoke detector can be effectively reduced, and the probability of the main body being damaged when abutting against the floor slab can be effectively reduced.

[0039] In summary, the present application includes at least one of the following beneficial effects:

[0040] 1. It can effectively reduce the influence of the external environment on the functional test of the smoke detector, improve the reliability and accuracy of the functional test of the smoke detector, and at the same time can effectively reduce the influence of the smoke on the external environment during the functional test of the smoke detector;

[0041] 2. It can facilitate the staff to conduct a more comprehensive and detailed functional test on the smoke detector and obtain more comprehensive and accurate test data;

[0042] 3. It can simulate the situation where different smokes move to trigger the smoke detector, so as to further facilitate the staff to conduct a more comprehensive and detailed functional test on the smoke detector. Description of the Drawings

[0043] Figure 1 is a schematic structural diagram of a smoke detector functional tester according to an embodiment of the present application;

[0044] Figure 2 is a partial structural diagram when conducting a functional test on the circumferential side of the smoke detector according to an embodiment of the present application;

[0045] Figure 3 is Figure 2 a partial enlarged view of;

[0046] Figure 4 is a partial structural diagram when conducting a functional test on the bottom of the smoke detector according to an embodiment of the present application;

[0047] Figure 5 is Figure 4 a partially enlarged view of

[0048] Description of the reference numerals: 1, floor slab; 2, smoke detector; 3, main body; 31, installation space; 32, test space; 33, first through port; 34, second through port; 4, support device; 41, lifting assembly; 411, fixing member; 412, movable member; 413, fifth driving member; 5, control device; 51, rotating rod; 52, control panel; 6, smoke generator; 7, blowing device; 71, body; 72, impeller; 73, first driving member; 74, fourth driving member; 8, smoke guiding device; 81, rotating member; 811, installation port; 812, smoke outlet; 82, adjusting assembly; 821, flexible belt; 8211, smoke guiding port; 8212, smoke passing port; 822, driving roller; 823, second driving member; 83, cover body; 831, relief opening; 84, third driving member; 9, elastic pad. Detailed implementation manners

[0049] The following further describes the present application in detail Figures 1-5 in conjunction with the accompanying drawings.

[0050] The embodiment of the present application discloses a smoke detector function tester, which is used to perform a function test on a smoke detector installed on a floor slab, and at the same time can facilitate the staff to perform a function test on the smoke detector below it.

[0051] Referring to Figure 1 and Figure 2 , the smoke detector function tester includes a main body 3, a support device 4, a control device 5, a smoke generator 6, a blowing device 7 and a smoke guiding device 8. Among them, the main body 3 serves as the main installation carrier for other structures; the support device 4 is used to support the main body 3; the control device 5 facilitates the staff to control the functional structures; the smoke generator 6 is used to generate the smoke required for the function test; the blowing device 7 is used to drive the smoke to move; the smoke guiding device 8 is used to guide the smoke to move.

[0052] Referring to Figure 2 and Figure 3 , the main body 3 is integrally in a cylindrical structure, and its interior has an installation space 31 for installing the smoke generator 6 and the blowing device 7, and its top has a test space 32 for performing a function test on the smoke detector 2. In this embodiment, it is preferably that the overall shapes of the installation space 31 and the test space 32 are both in a cylindrical structure coaxial with the main body 3.

[0053] The top of the installation space 31 surrounds the test space 32, and the main body 3 is provided with a first through opening 33 at the top between the installation space 31 and the test space 32 for the top of the installation space 31 and the test space 32 to communicate horizontally. The first through opening 33 is an annular opening and its axis coincides with the axis of the main body 3, and the first through opening 33 is located on the circumferential side of the test space 32. The main body 3 is also provided with a second through opening 34 at the bottom position of the test space 32 for the installation space 31 and the test space 32 to communicate vertically. The second through opening 34 is a circular opening and its axis coincides with the axis of the main body 3.

[0054] Refer to Figure 1 , the support device 4 is installed at the bottom of the main body 3 and includes a plurality of lifting components 41, which can change the length along the axis direction of the main body 3 to achieve the effect of controlling the vertical lifting of the main body 3. In this embodiment, preferably, the support device 4 includes a total of four lifting components 41, and preferably, the four lifting components 41 are circumferentially arranged on the main body 3 with the axis of the main body 3 as the axis.

[0055] The lifting component 41 includes a fixing member 411, a movable member 412, and a fifth driving member 413.

[0056] The fixing member 411 is in a rod-shaped structure, one end of its length direction is fixedly connected to the bottom of the main body 3, and its length direction is parallel to the axis direction of the main body 3; the movable member 412 is in a cylindrical structure, which is sleeved and matched with the fixing member 411, and it can move relative to the fixing member 411 along the axis direction of the fixing member 411; the fifth driving member 413 is fixedly installed at the end of the fixing member 411 away from the main body 3 and can drive the movable member 412 to move relative to the fixing member 411. In this embodiment, preferably, the fifth driving member 413 is a servo cylinder, and the end of its piston rod is fixedly connected to the movable member 412 to drive the movable member 412 to move; since the servo cylinder is a common prior art, it will not be elaborated here, and it is only briefly shown in the drawings.

[0057] The four lifting components 41 have the same and synchronous effect of driving the main body 3 to lift vertically, that is, the four fifth driving members 413 in the four lifting components 41 drive the corresponding movable members 412 to move in the same direction, the same distance, and the positions after movement are also the same.

[0058] Before conducting a functional test on the smoke detector 2, it is necessary to control the support device 4 to move the main body 3 vertically upward until it contacts and abuts against the floor slab 1, and at the same time, the smoke detector 2 is located in the test space 32. In this embodiment, preferably, the position of the smoke detector 2 in the test space 32 is aligned with the axis of the main body 3 at this time.

[0059] Refer to Figure 2 and Figure 3, Further, to improve the sealing performance between the test space 32 and the external environment after the smoke detector 2 is placed in the test space 32, reduce the probability of smoke spreading to the outside and affecting the test data due to the entry of external air into the test space 32, and at the same time reduce the probability of the main body 3 being damaged by direct contact with the floor slab 1, it is preferable to fixedly install an elastic pad 9 on the surface of the main body 3 in contact with the floor slab 1. In this embodiment, it is preferable that the elastic pad 9 is made of rubber material, and it can achieve a sealing effect after being compressed and deformed in the gap between the main body 3 and the floor slab 1.

[0060] Referring to Figure 2 and Figure 3 , the control device 5 includes a rotating rod 51 and a control panel 52.

[0061] The rotating rod 51 is integrally in a cylindrical structure. One end of its length direction passes through the main body 3 and the end is located in the test space 32, and the other end of its length direction is located below the main body 3; the rotating rod 51 is rotatably connected to the main body 3, and its rotation axis coincides with its own axis and the axis of the main body 3, and the end away from the main body 3 has a structure convenient for the staff to control its rotation.

[0062] The control panel 52 is fixedly installed on one side of the bottom of the main body 3 along its radial direction. The control panel 52 can control the support device 4, the smoke generator 6, the blowing device 7 and the smoke guiding device 8, so as to adjust the functional test process of the smoke detector 2. In this embodiment, since the control panel 52 with the above functions is a common prior art, the staff controls the support device 4, the smoke generator 6, the blowing device 7 and the smoke guiding device 8 through buttons, and can observe relevant data through the display screen.

[0063] The smoke generator 6 is fixedly installed on the rotating rod 51 and is located in the installation space 31. It can generate smoke at one end away from the rotating rod 51 and is controlled by the control panel 52. The staff can control its on-off through the control panel 52, and can also control the concentration of the generated smoke, etc. In this embodiment, since the smoke generator 6 with the above functions is a prior art in this field, it will not be elaborated here, and it is only briefly shown in the drawings.

[0064] The blowing device 7 is installed on the rotating rod 51 and is located in the installation space 31, and the blowing device 7 is located above the smoke generator 6.

[0065] The blowing device 7 includes a machine body 71, an impeller 72, a first driving member 73 and a fourth driving member 74.

[0066] One end of the body 71 is rotatably connected to the rotating rod 51. Its rotation axis is perpendicular to its own length direction and perpendicular to the rotation axis of the rotating rod 51, and its rotation axis is perpendicular to the line connecting the position where the smoke generator 6 generates smoke and the rotating rod 51; the impeller 72 is rotatably connected to the body 71 and is located at one end of the body 71 away from the rotating rod 51, and its rotation axis is parallel to the length direction of the body 71; the first driving member 73 is fixedly installed on the body 71 and can drive the impeller 72 to rotate relative to the body 71; the fourth driving member 74 is fixedly installed on the rotating rod 51 and can drive the base body to rotate relative to the rotating rod 51. In this embodiment, preferably, both the first driving member 73 and the fourth driving member 74 are servo motors and are both controlled by the control panel 52. The staff can control whether the first driving member 73 drives the impeller 72 to rotate and its rotation speed through the control panel 52, and can also control the fourth driving member 74 to drive the base body to rotate relative to the rotating rod 51 to change the position state; since the first driving member 73 and the fourth driving member 74 with the above functions are both common existing technologies, they will not be elaborated here, and only a brief representation is made of them in the drawings.

[0067] Refer to Figure 2 and Figure 4 , there are restrictions during the rotation of the body 71 relative to the rotating rod 51. When the body 71 rotates downward to the limit position, at this time, the length direction of the body 71 is perpendicular to the axis direction of the rotating rod 51, and at this time, the rotation of the impeller 72 can form an air flow moving in the direction away from the rotating rod 51 along the length direction of the body 71; when the body 71 rotates upward to the limit position, at this time, the length direction of the body 71 is parallel to the axis direction of the rotating rod 51 and it is located below the second through hole 34, and at this time, the rotation of the impeller 72 can form an air flow upward along the axis direction of the rotating rod 51.

[0068] Refer to Figure 3 and Figure 5 , the smoke guiding device 8 is installed on the top of the main body 3 and is located in the test space 32, and it includes a rotating member 81 and two adjusting components 82.

[0069] The rotating member 81 is integrally in a cylindrical structure. It is rotatably connected to the main body 3. Its rotation axis coincides with its own axis and coincides with the axis of the main body 3, and it is fixedly connected to the top of the rotating rod 51; the circumferential part of the rotating member 81 can be kept in contact with the circumferential inner wall of the test space 32 and seal the first through hole 33, and the bottom of the rotating member 81 can be kept in contact with the bottom inner wall of the test space 32 and seal the second through hole 34.

[0070] On both sides of the rotating member 81 along its own radial direction, there are installation openings 811 for installing the adjusting assembly 82. The radial direction in which the two installation openings 811 are distributed on the rotating member 81 is parallel to the length direction of the machine body 71 when it rotates downward to the limit position, and the installation space 31 can communicate with the test space 32 through the first through opening 33 and the installation opening 811 in sequence.

[0071] The adjusting assembly 82 includes a plurality of flexible belts 821, a plurality of driving rollers 822 and a second driving member 823.

[0072] The flexible belt 821 is integrally in an annular belt structure, which has a certain flexibility and elasticity and can seal the installation opening 811 at the installation opening 811; a smoke passage opening 8212 and a smoke guiding opening 8211 for smoke to pass through the installation opening 811 are provided on the flexible belt 821. The length dimension of the smoke passage opening 8212 extending along its circumferential trajectory on the flexible belt 821 is greater than the length dimension of the smoke guiding opening 8211 extending along its circumferential trajectory on the flexible belt 821.

[0073] The driving roller 822 is rotatably connected to the rotating member 81 and is located in the installation opening 811. Its rotation axis coincides with its own axis, is perpendicular to the orientation of the installation opening 811 and perpendicular to the rotation axis of the rotating member 81; the installation openings 811 are distributed on the circumferential side of the rotating member 81 and at the position near the circumferential side at the bottom of the rotating member 81. After a plurality of driving rollers 822 are distributed in the installation opening 811, the flexible belt 821 is simultaneously wound around and installed on a plurality of driving rollers 822. At this time, any driving roller 822 rotating relative to the rotating member 81 can drive the remaining driving rollers 822 to rotate synchronously and in the same direction relative to the rotating member 81 through the flexible belt 821. In this embodiment, since the driving roller 822 and the flexible belt 821 with the above effects are both common prior arts, no further description is given here, and only a brief representation is made in the drawings.

[0074] The second driving member 823 is fixedly installed on the rotating member 81, which can drive a driving roller 822 to rotate relative to the rotating member 81 and is controlled by the control panel 52. In this embodiment, it is preferably that the second driving member 823 is also a servo motor.

[0075] During the process in which the staff controls the second driving member 823 through the control panel 52 to drive the flexible belt 821 to move in the installation port 811, there are restrictions, and during this process, the smoke guiding port 8211 remains on the side of the smoke passing port 8212 close to the test space 32. When the flexible belt 821 moves and the smoke guiding port 8211 moves within the area on the circumferential side part of the rotating member 81 in the installation port 811, the smoke guiding port 8211 remains in communication with the smoke passing port 8212, so that the installation space 31 can communicate with the test space 32 through the first through port 33, the smoke passing port 8212, and the smoke guiding port 8211 in sequence; when the flexible belt 821 moves and the smoke guiding port 8211 moves within the area at the bottom of the rotating member 81 close to its circumferential side part, the smoke guiding port 8211 remains separated from the smoke passing port 8212, so that the installation space 31 cannot communicate with the test space 32 through the first through port 33.

[0076] The smoke guiding device 8 further includes a cover body 83 and a third driving member 84.

[0077] The cover body 83 is integrally in a circular plate-like structure, and it is rotatably installed on the rotating member 81, located in the test space 32 and above the part of the rotating member 81 close to the bottom of the test space 32. Its rotation axis coincides with its own axis and coincides with the axis of the rotating member 81.

[0078] A plurality of smoke outlet openings 812 are formed in the part of the rotating member 81 close to the bottom of the test space 32, and a plurality of relief openings 831 are formed in the cover body 83, and the plurality of relief openings 831 correspond to the plurality of smoke outlet openings 812 one by one. In this embodiment, it is preferably that the relief openings 831 and the smoke outlet openings 812 have the same shape. The plurality of smoke outlet openings 812 are arranged in a circumferential array on the rotating member 81 with the axis of the rotating member 81 as the axis, and the plurality of relief openings 831 are arranged in a circumferential array on the cover body 83 with the rotation axis of the cover body 83 as the axis.

[0079] There are restrictions during the process in which the cover body 83 rotates relative to the rotating member 81. When the cover body 83 rotates in one direction to the limit position, at this time, the plurality of relief openings 831 on the cover body 83 can all communicate with and align with the corresponding smoke outlet openings 812 on the rotating member 81. At this time, the installation space 31 can communicate with the test space 32 through the second through port 34, the smoke outlet openings 812, and the relief openings 831 in sequence; when the cover body 83 rotates in the other direction to the limit position, at this time, the plurality of relief openings 831 on the cover body 83 are all separated from the plurality of smoke outlet openings 812 on the rotating member 81, so that the installation space 31 cannot communicate with the test space 32 through the second through port 34.

[0080] The third driving member 84 is fixedly installed on the rotating member 81, can drive the cover body 83 to rotate relative to the rotating member 81, and is controlled by the control panel 52. In this embodiment, it is preferably that the third driving member 84 is also a servo motor.

[0081] Refer toFigure 2 and Figure 3 When it is necessary to test the smoke detector 2's detection function for the smoke around itself, the staff can control the third driving member 84 through the control panel 52 to drive the cover 83 to rotate until the installation space 31 cannot communicate with the test space 32 through the second opening 34, and at the same time control the second driving member 823 to drive the flexible belt 821 to flexibly adjust the height position of the two smoke guide ports 8211, and control the rotating rod 51 to rotate and adjust the position of the smoke guide port 8211 around the smoke detector 2, and then control the fourth driving member 74 to drive the body 71 to rotate downward. To the extreme position, and then control the operation of the smoke generator 6 and the blowing device 7, the horizontal airflow formed by the blowing device 7 will enter the test space 32 through the first opening 33, the smoke outlet 8212 and the smoke guide port 8211 in turn, and then return to the installation space 31 through another smoke guide port 8211, another smoke outlet 8212 and the first opening 33 in turn; at this time, the direction in which the smoke moves to the side around the smoke detector 2 can be adjusted by adjusting the height position of the two smoke guide ports 8211 and the position of the smoke guide port 8211 on the side around the smoke detector 2.

[0082] Reference Figure 4 and Figure 5 When it is necessary to test the smoke detector 2's function of detecting smoke at the bottom thereof, the staff can control the second driving member 823 through the control panel 52 to drive the flexible belt 821 to move to a state where the installation space 31 cannot communicate with the test space 32 through the first opening 33, and at the same time control the third driving member 84 to drive the cover body 83 to rotate to a position where the clearance port 831 is aligned with the corresponding smoke outlet 812, and then control the fourth driving member 74 to drive the body 71 to rotate upward to the extreme position, and then control the smoke generator 6 and the blowing device 7 to operate, so that the vertical upward airflow formed by the blowing device 7 will successively pass through the second opening 34, the smoke outlet 812 and the clearance port 831 to enter the test space 32, so as to test the smoke detection function of the bottom of the smoke detector 2.

[0083] The implementation principle of a smoke detector function tester in the embodiment of the present application is:

[0084] During the functional test of the smoke detector 2, the tester is first moved to the bottom of the corresponding smoke detector 2, and then the control panel 52 is used to control the supporting device 4 to raise the main body 3 until the main body 3 contacts and abuts against the floor 1 and the smoke detector 2 is located in the test space 32, and then the functions of the smoke detector 2 at different positions are tested according to the requirements;

[0085] When it is necessary to perform a functional test on the peripheral position of the smoke detector 2, the second driving member 823 is controlled to drive the flexible belt 821 to move to a state where the installation space 31 cannot communicate with the test space 32 through the first opening 33, and the third driving member 84 is controlled to drive the cover body 83 to rotate to a position where the clearance opening 831 is aligned with the corresponding smoke outlet 812, and then the fourth driving member 74 is controlled to drive the body 71 to rotate upward to the limit position, and then the smoke generator 6 and the blowing device 7 are controlled to operate;

[0086] When it is necessary to perform a functional test on the bottom position of the smoke detector 2, the second driving member 823 is controlled to drive the flexible belt 821 to move to a state where the installation space 31 cannot communicate with the test space 32 through the first opening 33, and the third driving member 84 is controlled to drive the cover body 83 to rotate to a position where the clearance opening 831 is aligned with the corresponding smoke outlet 812, and then the fourth driving member 74 is controlled to drive the body 71 to rotate upward to the extreme position, and then the smoke generator 6 and the blowing device 7 are controlled to operate.

[0087] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A smoke detector function tester, characterized in that: It comprises a main body (3), a supporting device (4), a control device (5), a smoke generator (6), a blowing device (7) and a smoke guiding device (8); The main body (3) has a test space (32) at the top and an installation space (31) inside. The main body (3) is provided with a first opening (33) on the periphery of the test space (32) for connecting the test space (32) and the installation space (31). The support device (4) is arranged below the main body (3) and is used to support the main body (3) so that the main body (3) is kept in contact with the floor (1) and the smoke detector (2) is located in the test space (32). The control device (5) is arranged at the bottom of the main body (3) and is used to control the smoke generator (6), the blowing device (7) and the smoke guide device (8). The smoke generator (6) and the blowing device (7) are both arranged in the installation space (31), and the smoke guide device (8) is arranged at the top of the main body (3) and is used to guide smoke into and out of the test space (32). The control device (5) comprises a rotating rod (51) and a control panel (52); the rotating rod (51) is rotatably connected to the main body (3), and its rotation axis is vertical and centered relative to the main body (3); one end of the rotating rod (51) passes through the main body (3) and the other end is located below the main body (3), and the blowing device (7) and the smoke guiding device (8) are both connected to the rotating rod (51); the control panel (52) is arranged on one side of the bottom of the main body (3) and is used to control the smoke generator (6) and the blowing device (7); The blowing device (7) comprises a body (71), a first driving member (73) and an impeller (72); The machine body (71) is arranged on the rotating rod (51); the impeller (72) is rotatably connected to the machine body (71), and its rotation axis is perpendicular to the rotation axis of the rotating rod (51); the first driving member (73) is arranged on the machine body (71) and is used to drive the impeller (72) to rotate; The impeller (72) rotates to drive the gas flow in a direction that is aligned in a vertical direction with the direction in which the smoke guide device (8) guides the smoke into and out of the test space (32); The smoke guiding device (8) comprises a rotating member (81) and two adjusting components (82); The rotating member (81) covers the first opening (33) and is connected to the top of the rotating rod (51), and the rotating member (81) keeps covering the first opening (33) during the process of rotating along with the rotating rod (51); The rotating member (81) is provided with mounting openings (811) on both sides along the radial direction of the rotating rod (51) for mounting the adjusting component (82), and the adjusting component (82) comprises a flexible belt (821), a plurality of driving rollers (822) and a second driving member (823); The driving roller (822) is rotatably connected to the rotating member (81) and is located in the mounting opening (811), and its rotation axis is perpendicular to the rotation axis of the rotating rod (51); the flexible belt (821) is connected end to end to form a ring, and is simultaneously wound around a plurality of the driving rollers (822); the second driving member (823) is disposed on the rotating member (81) and is used to drive the plurality of driving rollers (822) to rotate synchronously and in the same direction and is controlled by the control panel (52); The flexible belt (821) is provided with a smoke passage opening (8212) and a smoke guide opening (8211); when the smoke guide opening (8211) moves in a vertical direction on one side of the test space (32), the smoke guide opening (8211) remains in communication with the smoke passage opening (8212), so that smoke in the installation space (31) can enter the test space (32); The main body (3) is provided with a second opening (34) at the bottom of the test space (32) for connecting the test space (32) with the installation space (31); the rotating member (81) is provided with a plurality of smoke outlets (812) at a position close to the bottom of the test space (32); and a cover (83) for controlling the opening and closing of the plurality of smoke outlets (812) is movably provided on the rotating member (81); The cover body (83) is rotatably connected to the rotating member (81), and its rotation axis coincides with the rotation axis of the rotating rod (51); a third driving member (84) for driving the cover body (83) to rotate is provided on the rotating member (81), and the third driving member (84) is controlled by the control panel (52); When the flexible belt (821) moves until the smoke guide port (8211) is close to the bottom of the test space (32), the smoke guide port (8211) is separated from the smoke passage port (8212).

2. A smoke detector function tester according to claim 1, characterized in that: The blowing device (7) further comprises a fourth driving member (74); The machine body (71) is rotatably connected to the rotating rod (51), and its rotation axis is perpendicular to the rotation axis of the impeller (72) and perpendicular to the rotation axis of the rotating rod (51); the fourth driving member (74) is arranged on the rotating rod (51) and is used to drive the machine body (71) to rotate relative to the rotating rod (51).

3. A smoke detector function tester according to claim 1, characterized in that: The smoke generator (6) is located below the blowing device (7).

4. A smoke detector function tester according to claim 1, characterized in that: The supporting device (4) comprises a plurality of lifting components (41), and the lifting components (41) are controlled by the control panel (52); The lifting component (41) comprises a fixing member (411), a movable member (412) and a fifth driving member (413); One end of the fixed member (411) is fixedly connected to the main body (3), and the movable member (412) is movably connected to the other end of the fixed member (411) in a vertical direction; the fifth driving member (413) is arranged on the fixed member (411) and is used to drive the movable member (412) to move relative to the fixed member (411).

5. A smoke detector function tester according to claim 4, characterized in that: An elastic pad (9) is arranged on the top of the main body (3); when the main body (3) contacts and abuts against the floor slab (1), the elastic pad (9) seals the gap between the main body (3) and the floor slab (1).

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