Smoke sensor detection test bench

Abstract

The utility model provides a smoke sensor detection test bench. The smoke sensor detection test bench comprises a bedplate; an opening is formed in the bottom of the cover body, and a sealing gasket is arranged on the edge of the opening in the bottom of the cover body; the smoke generator is fixedly mounted on the top surface of the bedplate, and the smoke generator is connected with the cover body; the rotating disc is arranged below the cover body, a plurality of carrying frames used for placing smoke sensors are arranged on the top surface of the rotating disc in an annular array mode, and the carrying frames are sequentially adjusted and moved to the bottom of the cover body through rotation of the rotating disc; the lifting mechanism is connected with the cover body to drive the cover body to move up and down, so that the bottom of the cover body is attached to or separated from the top surface of the rotating disc; and the filtering mechanism is connected with the cover body. Through rotation of the rotating disc, the smoke sensors in the loading frame on the rotating disc are sequentially and automatically moved to the position below the cover body, the cover body is driven by the lifting mechanism, an opening in the bottom of the cover body is automatically opened and closed, and convenience is provided for replacement of materials at the detection position.

Description

Technical Field

[0001] The utility model relates to the field of smoke sensor detection, in particular to a smoke sensor detection test bench. Background Art

[0002] Smoke sensors are devices used to detect the presence and concentration of smoke in an environment. Their housings or brackets are typically constructed from precision cold-bent profiles to provide structural support and protection. Smoke sensors are tested using a smoke sensor test bench.

[0003] The existing smoke sensor detection test bench has an openable and closable box, in which the smoke sensor is placed, and then smoke is introduced to achieve detection. For large-scale detection and replacement of smoke sensors, manual operations such as opening the box door, removing the smoke sensor after detection, inserting the smoke sensor to be tested, and closing the box door are required. This makes the smoke sensor replacement operation cumbersome and labor-intensive. At the same time, the smoke generated during detection is not treated and is directly discharged to the outside, which is easy to cause pollution. Utility Model Content

[0004] In order to solve the technical problems of complicated and inconvenient operation of material replacement at the detection position and lack of smoke treatment, the utility model provides a smoke sensor detection test bench.

[0005] The utility model solves the above technical problems through the following technical solutions:

[0006] The utility model provides a smoke sensor detection test bench, comprising a table; further comprising: a cover body, the bottom of the cover body is open, and a sealing gasket is provided at the edge of the bottom opening of the cover body; a smoke generator, the smoke generator is fixedly mounted on the top surface of the table plate, and the smoke generator is connected to the cover body; a rotating disk, the rotating disk is rotatable, the rotating disk is arranged below the cover body, and the top surface of the rotating disk is provided with a plurality of carrier frames for placing smoke sensors in an annular array, and the rotating disk is rotated to make the plurality of carrier frames adjusted and moved to the bottom of the cover body in sequence; a lifting mechanism, the lifting mechanism is connected to the cover body to drive the cover body to move up and down, so that the bottom of the cover body is fitted with or separated from the top surface of the rotating disk; and a filtering mechanism is connected to the cover body.

[0007] In this technical solution, the smoke sensors in the upper frame of the rotating disk are automatically moved to the bottom of the cover body in turn through the rotation of the rotating disk. The cover body is driven by the lifting mechanism to automatically open and close the opening at the bottom of the cover body, which provides convenience for the replacement of materials in the detection position.

[0008] Preferably, a circular groove is provided on the top surface of the table, the rotating disk is fitted into the circular groove, and the top and bottom of the rotating disk extend outward to form a top edge and a bottom edge respectively, and the top edge and the bottom edge are respectively fitted with the top surface and the bottom surface of the table.

[0009] In this technical solution, the rotating installation is achieved through the cooperation between the circular groove and the rotating disk, and the top edge and the bottom edge play a role of limiting and blocking the rotating disk to prevent the rotating disk from separating from the circular groove.

[0010] Preferably, a base frame is fixedly mounted on the bottom of the table, a motor is fixedly mounted on the bottom of the base frame, a connecting shaft is fixedly connected to the output shaft end of the motor, and the connecting shaft is fixedly connected to the middle of the rotating disk.

[0011] In this technical solution, the rotating disk is rotated by providing drive through a motor.

[0012] Preferably, a three-way pipe is further included, wherein the smoke outlet of the smoke generator is fixedly connected to a first pipe body, one end of the first pipe body away from the smoke generator is connected to the top of the three-way pipe, the bottom end of the three-way pipe is fixedly connected to a corrugated hose, the bottom end of the corrugated hose is fixedly connected to an interface provided at the top of the cover body, the rear end of the three-way pipe is connected to a second pipe body, and one end of the second pipe body away from the three-way pipe is connected to the filtering mechanism; an air vent is opened on the side wall of the cover body, and a third valve is installed on the air vent.

[0013] In this technical solution, the cover body is connected to the filter mechanism and the smoke generator through the above-mentioned pipe fittings, and the design of the corrugated hose is suitable for the lifting and lowering adjustment of the cover body.

[0014] Preferably, a first valve is provided between the first tube body and the top end of the tee, and a second valve is provided between the second tube body and the rear end of the tee.

[0015] In this technical solution, the first valve and the second valve are used to control opening and closing and flow rate.

[0016] Preferably, the filtering mechanism includes a box body, a fan, a filter and a baffle; the top surface of the box body is fixedly connected to the bottom surface of the table plate, the rear side of the box body is fixedly connected to the second tube body, the front side of the box body is open, and the front side opening of the box body is fixedly installed with a baffle, the box body is provided with a fan and a filter, the air outlet of the fan faces the baffle, and the air inlet of the fan faces the filter.

[0017] In this technical solution, the filtering mechanism is used to remove the smoke in the hood after detection.

[0018] Preferably, the lifting mechanism includes a fixed frame, a side frame, an iron base and an electromagnet. The fixed frame is fixedly connected to the side wall of the outer shell of the smoke generator, and the fixed frame is fixedly connected to the bottom end of the tee pipe. The bottom of the fixed frame is elastically connected to the side frame, and the side frame is fixedly connected to the cover body. The iron base is fixedly connected to the side frame, and an electromagnet is provided below the iron base, and the electromagnet is fixedly mounted on the table.

[0019] In this technical solution, the lifting mechanism is used to drive the cover body to lift and lower.

[0020] Preferably, a plurality of guide posts are fixedly mounted on the top surface of the side frame, and the guide posts are cooperatively connected with guide holes provided on the fixing frame.

[0021] In this technical solution, the guide pillars and guide holes provide guidance for the lifting and lowering adjustment of the cover body.

[0022] Preferably, a spring is sleeved on the guide column, and two ends of the spring are respectively fixed to the fixing frame and the side frame.

[0023] In this technical solution, the spring elastically connects the fixing frame to the side frame.

[0024] Preferably, it further comprises a support frame, which is fixedly mounted on the bottom surface of the table top.

[0025] In this technical solution, the support frame provides support for the tabletop.

[0026] On the basis of conforming to the common sense in this field, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present utility model.

[0027] The positive progress effect of this utility model is:

[0028] The smoke sensor detection test bench proposed above can place multiple smoke sensor materials to be tested at one time through several carrier frames distributed in a circular array on the rotating disk. Through the rotation of the rotating disk, multiple smoke sensors to be tested are moved to the bottom of the cover body in turn, and the lifting mechanism drives the cover body to move up and down, so that the bottom opening of the cover body is fitted or separated from the top surface of the rotating disk, thereby realizing automatic replacement of the smoke sensor in the cover body without manual replacement. Manual replacement is only required to remove the tested smoke sensor on the rotating disk and replace it with a new smoke sensor to be tested during the detection of the smoke sensor in the cover body. The replacement of the material on the rotating disk does not need to occupy the entire detection time, thereby ensuring the overall detection efficiency; further, after the detection, the smoke in the cover body is filtered by the filtering mechanism, and after filtering, the cover body is opened to prevent the smoke from being directly discharged into the outside world and causing pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0030] Figure 2 It is a structural diagram of the overall bottom of the utility model.

[0031] Figure 3 It is a structural diagram of the lifting mechanism of the utility model.

[0032] Figure 4 It is a front view of the entire utility model.

[0033] Figure 5 It is a schematic diagram of the cross-sectional structure of the rotating disk and the table plate of the utility model.

[0034] Figure 6 This is a structural diagram of the filtering mechanism of the utility model.

[0035] Description of Reference Numerals

[0036] 1. Support frame;

[0037] 2. Tablet;

[0038] 3. Rotating disk; 301. Carrying frame; 302. Connecting shaft;

[0039] 4. Smoke generator;

[0040] 5. The first tube body;

[0041] 6. Tee pipe;

[0042] 7. The second tube body;

[0043] 8. First valve;

[0044] 9. Second valve;

[0045] 10. Corrugated hose;

[0046] 11. Cover body;

[0047] 12. Lifting mechanism; 1201. Side frame; 1202. Iron base; 1203. Electromagnet; 1204. Fixed frame; 1205. Guide column; 1206. Spring;

[0048] 13. Filter mechanism; 1301. Box; 1302. Fan; 1303. Filter; 1304. Screen;

[0049] 14. Chassis;

[0050] 15. Motor;

[0051] 16. The third valve. DETAILED DESCRIPTION

[0052] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0053] like Figure 1-6 As shown, the smoke sensor detection test bench includes a table 2; it also includes: a cover body 11, the bottom of the cover body 11 is open, and a sealing gasket is provided at the edge of the bottom opening of the cover body 11; a smoke generator 4, the smoke generator 4 is fixedly mounted on the top surface of the table 2, and the smoke generator 4 is connected to the cover body 11; a rotating disk 3, the rotating disk 3 is rotatable, the rotating disk 3 is arranged below the cover body 11, and the top surface of the rotating disk 3 is provided with a plurality of carrier frames 301 for placing smoke sensors in an annular array, and the rotating disk 3 is rotated to adjust the plurality of carrier frames 301 to the bottom of the cover body 11 in sequence; a lifting mechanism 12, the lifting mechanism 12 is connected to the cover body 11 to drive the cover body 11 to move up and down, so that the bottom of the cover body 11 is in contact with or separated from the top surface of the rotating disk 3; a filtering mechanism 13, the filtering mechanism 13 is connected to the cover body 11.

[0054] like Figure 1-2 As shown, a circular groove is provided on the top surface of the table 2, and the rotating disk 3 is connected to the circular groove, and the top and bottom of the rotating disk 3 extend outward to form a top edge and a bottom edge respectively, and the top edge and the bottom edge are respectively in contact with the top surface and the bottom surface of the table 2.

[0055] A base frame 14 is fixedly mounted on the bottom of the table 2 , a motor 15 is fixedly mounted on the bottom of the base frame 14 , a connecting shaft 302 is fixedly connected to the output shaft end of the motor 15 , and the connecting shaft 302 is fixedly connected to the middle of the rotating disk 3 .

[0056] The motor 15 drives the rotating disk 3 to rotate clockwise or counterclockwise via the connecting shaft 302, so that the plurality of carrier frames 301 are sequentially moved to the bottom of the cover 11. The motor 15 is preferably a servo motor 15 or a stepping motor 15.

[0057] As an example, Figure 1 As shown, the number of the carrier frames 301 may be 6; the motor 15 drives the carrier frames 301 to rotate 60° each time.

[0058] like Figure 1 and Figure 3As shown, it also includes a three-way pipe 6, the smoke outlet of the smoke generator 4 is fixedly connected to the first tube body 5, the end of the first tube body 5 away from the smoke generator 4 is connected to the top of the three-way pipe 6, the bottom end of the three-way pipe 6 is fixedly connected to the corrugated hose 10, the bottom end of the corrugated hose 10 is fixedly connected to the interface provided at the top of the cover body 11, the rear end of the three-way pipe 6 is connected to the second tube body 7, the end of the second tube body 7 away from the three-way pipe 6 is connected to the filtering mechanism 13; the side wall of the cover body 11 is provided with an air vent, and the air vent is installed with a third valve 16.

[0059] A first valve 8 is provided between the first tube body 5 and the top end of the three-way tube 6 , and a second valve 9 is provided between the second tube body 7 and the rear end of the three-way tube 6 .

[0060] The filtering mechanism 13 includes a box body 1301, a fan 1302, a filter 1303 and a baffle 1304; the top surface of the box body 1301 is fixedly connected to the bottom surface of the table top 2, the rear side of the box body 1301 is fixedly connected to the second tube body 7, the front side of the box body 1301 is open, and the front side opening of the box body 1301 is fixedly installed with a baffle 1304, the box body 1301 is provided with a fan 1302 and a filter 1303, the air outlet of the fan 1302 faces the baffle 1304, and the air inlet of the fan 1302 faces the filter 1303.

[0061] The cover body 11 is connected to the smoke generator 4 and the filter mechanism 13 through the first tube body 5 , the second tube body 7 , the three-way tube 6 and the corrugated hose 10 .

[0062] In a specific implementation, the first valve 8, the second valve 9, and the third valve 16 are preferably electromagnetic valves. A controller is further connected to the whole to provide control. A smoke concentration sensor is set in the cover body 11.

[0063] A smoke sensor to be tested moves together with the carrier frame 301 to the bottom of the cover body 11, and the cover body 11 moves downward, so that the sealing gasket at the bottom of the cover body 11 is in close contact with the top surface of the rotating disk 3, so that the bottom of the cover body 11 is sealed; the first valve 8 is opened, the second valve 9 is closed, and the smoke generator 4 is started. The smoke generated by the smoke generator 4 enters the first tube body 5, and then passes through the three-way pipe 6 and the corrugated hose 10, and diffuses into the cover body 11 through the interface at the top of the cover body 11. By continuously introducing smoke into the cover body 11, the smoke concentration increases. The smoke concentration sensor senses the smoke concentration in the cover body 11 in real time, and detects the smoke concentration at which the smoke sensor responds.

[0064] After the detection, the smoke generator 4 is turned off, the first valve 8 is closed, the second valve 9 and the third valve 16 are opened, and the fan 1302 extracts the smoke in the cover body 11. The smoke enters the box body 1301 through the second tube body 7, is filtered by the filter 1303, and then is discharged to the outside through the mesh on the baffle 1304, preventing the smoke from being directly discharged to the outside and causing pollution.

[0065] After the smoke is treated, the cover 11 moves upward and separates from the rotating disk 3 . The rotating disk 3 rotates to move the next smoke sensor to be detected to the bottom of the cover 11 .

[0066] like Figure 1 、 Figure 3 as well as Figure 4 As shown, the lifting mechanism 12 includes a fixed frame 1204, a side frame 1201, an iron base 1202 and an electromagnet 1203. The fixed frame 1204 is fixedly connected to the side wall of the shell of the smoke generator 4, and the fixed frame 1204 is fixedly connected to the bottom end of the tee pipe 6. The bottom of the fixed frame 1204 is elastically connected to the side frame 1201, and the side frame 1201 is fixedly connected to the cover body 11. The iron base 1202 is fixedly connected to the side frame 1201, and an electromagnet 1203 is provided below the iron base 1202, and the electromagnet 1203 is fixedly mounted on the table 2.

[0067] A plurality of guide posts 1205 are fixedly mounted on the top surface of the side frame 1201 , and the guide posts 1205 are engaged with guide holes provided on the fixing frame 1204 .

[0068] A spring 1206 is sleeved on the guide post 1205 , and two ends of the spring 1206 are fixedly connected to the fixing frame 1204 and the side frame 1201 respectively.

[0069] like Figure 4 As shown, at this time, the bottom of the cover body 11 is in a separated state from the rotating disk 3, and the cover body 11 is driven downward. By energizing the electromagnet 1203, the iron seat 1202, the side frame 1201, and the cover body 11 are moved downward together by magnetic attraction, and at the same time, the spring 1206 is stretched, and the bottom of the cover body 11 is fitted with the rotating disk 3; subsequently, the electromagnet 1203 is de-energized, and the elastic force of the spring 1206 causes the iron seat 1202, the side frame 1201, and the cover body 11 to move upward and reset together, and the cover body 11 is separated from the rotating disk 3.

[0070] The guide pillars 1205 and the guide holes provide guidance for the up and down movement of the cover body 11 .

[0071] It also includes a support frame 1, which is fixedly installed on the bottom surface of the table top 2.

[0072] The present invention is not limited to the above-described embodiments. Any changes in shape or structure fall within the scope of protection of the present invention. The scope of protection of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications shall fall within the scope of protection of the present invention.

Claims

1. A smoke sensor test bench, comprising a platform (2); characterized in that: Also includes: A cover body (11), wherein the bottom of the cover body (11) is open, and a sealing gasket is provided at an edge of the bottom opening of the cover body (11); A smoke generator (4), wherein the smoke generator (4) is fixedly mounted on the top surface of the table (2), and the smoke generator (4) is connected to the cover (11); A rotating disk (3), the rotating disk (3) being rotatable, the rotating disk (3) being arranged below the cover body (11), and the top surface of the rotating disk (3) being provided with a plurality of carrier frames (301) for placing smoke sensors in a circular array, and the rotating disk (3) being rotated so that the plurality of carrier frames (301) are adjusted and moved to the bottom of the cover body (11) in sequence; A lifting mechanism (12), the lifting mechanism (12) being connected to the cover body (11) to drive the cover body (11) to move up and down, so that the bottom of the cover body (11) is in contact with or separated from the top surface of the rotating disk (3); A filtering mechanism (13), wherein the filtering mechanism (13) is connected to the cover body (11).

2. The smoke sensor test bench according to claim 1, characterized in that: A circular groove is provided on the top surface of the table (2), and the rotating disk (3) is connected to the circular groove. The top and bottom of the rotating disk (3) extend outward to form a top edge and a bottom edge respectively, and the top edge and the bottom edge are respectively in contact with the top surface and the bottom surface of the table (2).

3. The smoke sensor test bench according to claim 2, characterized in that: A base frame (14) is fixedly mounted on the bottom of the platform (2), a motor (15) is fixedly mounted on the bottom of the base frame (14), an output shaft end of the motor (15) is fixedly connected to a connecting shaft (302), and the connecting shaft (302) is fixedly connected to the middle of the rotating disk (3).

4. The smoke sensor test bench according to claim 1, characterized in that: It also includes a three-way pipe (6), the smoke outlet of the smoke generator (4) is fixedly connected to a first pipe body (5), the end of the first pipe body (5) away from the smoke generator (4) is connected to the top of the three-way pipe (6), the bottom end of the three-way pipe (6) is fixedly connected to a corrugated hose (10), the bottom end of the corrugated hose (10) is fixedly connected to an interface provided on the top of the cover body (11), the rear end of the three-way pipe (6) is connected to a second pipe body (7), the end of the second pipe body (7) away from the three-way pipe (6) is connected to the filtering mechanism (13); a ventilation hole is opened on the side wall of the cover body (11), and a third valve (16) is installed on the ventilation hole.

5. The smoke sensor test bench according to claim 4, characterized in that: A first valve (8) is provided between the first tube body (5) and the top end of the three-way tube (6), and a second valve (9) is provided between the second tube body (7) and the rear end of the three-way tube (6).

6. The smoke sensor test bench according to claim 4, characterized in that: The filtering mechanism (13) comprises a box (1301), a fan (1302), a filter (1303) and a blocking net (1304); the top surface of the box (1301) is fixedly connected to the bottom surface of the table (2); the rear side of the box (1301) is fixedly connected to the second tube (7); the front side of the box (1301) is open, and the blocking net (1304) is fixedly installed on the front opening of the box (1301); the fan (1302) and the filter (1303) are arranged in the box (1301); the air outlet of the fan (1302) faces the blocking net (1304), and the air inlet of the fan (1302) faces the filter (1303).

7. The smoke sensor test bench according to claim 4, characterized in that: The lifting mechanism (12) comprises a fixed frame (1204), a side frame (1201), an iron base (1202) and an electromagnet (1203); the fixed frame (1204) is fixedly connected to the side wall of the outer shell of the smoke generator (4), and the fixed frame (1204) is fixedly connected to the bottom end of the three-way pipe (6); the bottom of the fixed frame (1204) is elastically connected to the side frame (1201), and the side frame (1201) is fixedly connected to the cover body (11); the iron base (1202) is fixedly connected to the side frame (1201), and an electromagnet (1203) is provided below the iron base (1202); the electromagnet (1203) is fixedly mounted on the platform (2).

8. The smoke sensor test bench according to claim 7, characterized in that: A plurality of guide posts (1205) are fixedly mounted on the top surface of the side frame (1201), and the guide posts (1205) are cooperatively connected with guide holes provided on the fixed frame (1204).

9. The smoke sensor test bench according to claim 8, characterized in that: A spring (1206) is sleeved on the guide column (1205), and two ends of the spring (1206) are respectively fixed to the fixing frame (1204) and the side frame (1201).

10. The smoke sensor test bench according to claim 1, characterized in that: It also includes a support frame (1), wherein the support frame (1) is fixedly mounted on the bottom surface of the tabletop (2).

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