Formaldehyde detection device for building materials

Abstract

The utility model belongs to the technical field of building material detection, and particularly relates to a building material formaldehyde detection device which comprises a detection box, the side wall of the detection box is fixedly connected with a first fixed cover; the side wall of the first fixed cover is fixedly connected with a second fixed cover; the side wall of the second fixed cover is communicated with a plurality of air inlet hoses; a plurality of first air inlet holes are formed in the side wall of the detection box; a plurality of second air inlet holes are formed in the side wall of the first fixed cover; the side wall of the first fixed cover is fixedly connected with a motor; the output end of the motor is fixedly connected with a rotating shaft; a plurality of fan blades are fixedly connected to the side wall of the rotating shaft; according to the step, the ends of the air inlet hoses are placed at the positions of the formaldehyde emission sources during detection by arranging the multiple air inlet hoses, so that air at the positions of the formaldehyde emission sources can be sucked into the detection box during air suction of the motor, errors of detection results caused by the fact that the detection box is far away from the positions of the formaldehyde emission sources are reduced, and the accuracy of the detection results can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of building material detection, in particular to a building material formaldehyde detection device. Background Art

[0002] Formaldehyde is a gas that currently poses a serious threat to human health. At the same time, formaldehyde is also an organic raw material that is used in many fields such as the production of plastics, synthetic fibers, leather industry, building materials, etc. Therefore, formaldehyde testing is required after using building materials.

[0003] Existing formaldehyde detection devices for building materials usually place the detection device indoors to absorb the surrounding air, and then use the detection device to detect the concentration of formaldehyde in the air, and then analyze whether the formaldehyde content exceeds the standard. During long-term use and observation, it was found that when the existing formaldehyde detection devices for building materials are used for indoor detection, when the air is absorbed into the detection device, it is far away from the formaldehyde emission source, resulting in errors in the measurement results.

[0004] To this end, the utility model provides a formaldehyde detection device for building materials. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve at least one problem raised in the background technology, a formaldehyde detection device for building materials is proposed.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a formaldehyde detection device for building materials described in the utility model comprises a detection box; a first fixed cover is fixedly connected to the side wall of the detection box; a second fixed cover is fixedly connected to the side wall of the first fixed cover; a plurality of air intake hoses are connected to the side wall of the second fixed cover; a plurality of first air intake holes are opened on the side wall of the detection box; a plurality of second air intake holes are opened on the side wall of the first fixed cover; a motor is fixedly connected to the side wall of the first fixed cover; a rotating shaft is fixedly connected to the output end of the motor; a plurality of fan blades are fixedly connected to the side wall of the rotating shaft; a detector is fixedly connected to the bottom of the detection box; the detector is located inside the detection box; in this step, by setting a plurality of air intake hoses and placing the end of the air intake hose to the position of the formaldehyde emission source during detection, the motor can suck the air at the position of the formaldehyde emission source into the detection box when sucking air, so as to reduce the error in the detection result caused by the detection box being far away from the position of the formaldehyde emission source, and improve the accuracy of the detection result.

[0007] Preferably, the side wall of the air intake hose is fixed with multiple fixing rings; the multiple fixing rings are evenly distributed on the side wall of the air intake hose; the side walls of two fixing rings close to each other are commonly fixed with multiple steel wires; this step can limit the bending degree of the air intake hose by arranging steel wires to connect multiple fixing rings. When the end of the air intake hose is moved toward the formaldehyde emission source, the middle part of the air intake hose will bend and knot during the movement. At this time, the fixing ring can limit the bending degree of the air intake hose to reduce the problem of gas blockage caused by bending and knotting, so as to improve the stability of gas flow.

[0008] Preferably, an air outlet hood is fixedly connected to the side wall of the detection box; an air outlet pipe is connected to the end of the air outlet hood; a plurality of air outlet holes are opened on the side wall of the detection box; in this step, the air outlet pipe is provided to allow the gas entering the detection box to flow to the outside, and the air outlet pipe end is moved to the outside to allow the air to be discharged to the outside, which can reduce the problem of errors in the detection result caused by the air inside the detection box being discharged into the room and then being sucked into the detection box for the second time, thereby improving the accuracy of the detection result.

[0009] Preferably, a protective cover is fixedly connected to the middle part of each of the steel wires; the protective cover is flexibly arranged; this step can reduce the wear of the air intake hose when the steel wire contacts the surface of the air intake hose by setting the protective cover, thereby reducing the damage to the air intake hose and causing air leakage, thereby playing a protective role.

[0010] Preferably, a spherical mesh cover is fixedly connected to the end of the air intake hose; the end of the spherical mesh cover is arranged to cover the outer wall of the air intake hose; this step prevents the end of the air intake hose from contacting the divergence source by providing the spherical mesh cover, thereby reducing the situation in which the end of the air intake hose is sucked together with the cabinet or board surface during inhalation, resulting in the air intake hose being blocked and unable to inhale.

[0011] Preferably, a suction cup is fixed to the bottom of the fixing ring; the suction cup is arranged close to one side of the spherical mesh cover; in this step, the end of the air intake hose can be fixed to the cabinet or board by arranging the suction cup to reduce the movement of the spherical mesh cover during inhalation, thereby improving the stability during inhalation.

[0012] The beneficial effects of the utility model are as follows:

[0013] 1. The utility model discloses a formaldehyde detection device for building materials. By arranging a plurality of air intake hoses, the ends of the air intake hoses are placed at the positions of formaldehyde emission sources during detection. The motor can suck the air at the positions of the formaldehyde emission sources into the detection box during air suction, so as to reduce the error in the detection result caused by the detection box being far away from the position of the formaldehyde emission source, and improve the accuracy of the detection result.

[0014] 2. The formaldehyde detection device for building materials described in the utility model can limit the bending degree of the air intake hose by setting a plurality of fixed rings connected by steel wires. When the end of the air intake hose is moved toward the formaldehyde emission source, the middle part of the air intake hose will bend and knot during the movement. At this time, the fixed ring can limit the bending degree of the air intake hose to reduce the problem of gas blockage caused by bending and knotting, so as to improve the stability of gas flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model will be further described below in conjunction with the accompanying drawings.

[0016] Figure 1 It is a stereogram in the utility model;

[0017] Figure 2 It is a cross-sectional view in the utility model;

[0018] Figure 3 It is a schematic diagram of the matching structure of the motor and the filter screen in the utility model;

[0019] Figure 4 It is a schematic diagram of the matching structure of the fixing ring, the spherical mesh cover and the suction cup in the utility model;

[0020] Legend:

[0021] 1. Detection box; 11. Detector; 12. First fixed cover; 13. Second fixed cover; 14. Air intake hose; 15. First air intake hole; 16. Second air intake hole; 17. Motor; 18. Rotating shaft; 19. Fan blade; 2. Fixed ring; 21. Steel wire; 3. Air outlet cover; 31. Air outlet pipe; 32. Air outlet hole; 4. Protective cover; 5. Spherical mesh cover; 6. Suction cup; 7. Filter. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Specific examples are given below.

[0024] like Figures 1 to 4As shown, a formaldehyde detection device for building materials described in an embodiment of the utility model comprises a detection box 1; a first fixed cover 12 is fixedly connected to the side wall of the detection box 1; a second fixed cover 13 is fixedly connected to the side wall of the first fixed cover 12; a plurality of air intake hoses 14 are connected to the side wall of the second fixed cover 13; a plurality of first air intake holes 15 are opened on the side wall of the detection box 1; a plurality of second air intake holes 16 are opened on the side wall of the first fixed cover 12; a motor 17 is fixedly connected to the side wall of the first fixed cover 12; a rotating shaft 18 is fixedly connected to the output end of the motor 17; a plurality of fan blades 19 are fixedly connected to the side wall of the rotating shaft 18; a detector 11 is fixedly connected to the bottom of the detection box 1; the detector 11 is located at the detection Inside the test box 1; during operation, the test box 1 is placed on an open space indoors during testing, and then the end of the air intake hose 14 is pulled close to the position of the formaldehyde emission source, such as paint, cabinets, door panels, etc., and then the motor 17 is turned on for suction to allow the air flow to enter the test box 1 from the end of the air intake hose 14, and then the detector 11 detects the formaldehyde content in the air flow. This step sets multiple air intake hoses 14 and places the end of the air intake hose 14 at the position of the formaldehyde emission source during testing, so that the motor 17 can suck the air at the formaldehyde emission source into the test box 1 during suction, so as to reduce the error in the test result caused by the test box 1 being far away from the formaldehyde emission source, and improve the accuracy of the test result.

[0025] like Figure 4 As shown, the side wall of the air intake hose 14 is fixed with multiple fixing rings 2; the multiple fixing rings 2 are evenly distributed on the side wall of the air intake hose 14; the side walls of two fixing rings 2 close to each other are commonly fixed with multiple steel wires 21; during operation, when the air intake hose 14 is pulled, the fixing ring 2 can limit the bending degree of the air intake hose 14. When the air intake hose 14 is bent or knotted when moving, the fixing ring 2 will limit the position of the air intake hose 14 to reduce the bending or knotting of the air intake hose 14. In this step, the bending degree of the air intake hose 14 can be limited by setting a steel wire 21 to connect multiple fixing rings 2. When the end of the air intake hose 14 is moved toward the formaldehyde emission source, the middle part of the air intake hose 14 will bend and knot during the movement. At this time, the fixing ring 2 can limit the bending degree of the air intake hose 14 to reduce the problem of gas blockage caused by bending and knotting, so as to improve the stability of gas flow.

[0026] like Figure 1As shown, the side wall of the detection box 1 is fixedly connected with an air outlet hood 3; the end of the air outlet hood 3 is connected with an air outlet pipe 31; the side wall of the detection box 1 is provided with a plurality of air outlet holes 32; during operation, when the gas enters the interior of the detection box 1, it will flow into the air outlet hood 3 from the air outlet holes 32 and then be discharged through the air outlet pipe 31. At this time, the end of the air outlet pipe 31 can be pulled to the outdoor position to allow the air flow to be discharged to the outdoor. In this step, the air outlet pipe 31 is set to allow the gas entering the interior of the detection box 1 to flow to the outdoor. The end of the air outlet pipe 31 is moved to the outdoor to allow the air flow to be discharged to the outdoor, which can reduce the problem of the air inside the detection box 1 being discharged into the room and being sucked into the interior of the detection box 1 for the second time, thereby causing errors in the detection result, thereby improving the accuracy of the detection result.

[0027] like Figure 4 As shown, a protective cover 4 is fixedly connected to the middle part of the plurality of steel wires 21; the protective cover 4 is flexibly arranged; during operation, when the air intake hose 14 is pulled, the middle part of the air intake hose 14 will bend, and at the same time, the steel wire 21 will bend and contact the surface of the air intake hose 14. At this time, the protective cover 4 is wrapped around the side wall of the steel wire 21 to avoid direct contact between the air intake hose 14 and the steel wire 21. In this step, the protective cover 4 is arranged to reduce the wear of the air intake hose 14 when the steel wire 21 contacts the surface of the air intake hose 14, so as to reduce the damage to the air intake hose 14 and cause air leakage, thereby playing a protective role.

[0028] like Figure 4 As shown, the end of the air intake hose 14 is fixedly connected with a spherical mesh cover 5; the end of the spherical mesh cover 5 is arranged to cover the outer wall of the air intake hose 14; during operation, the end of the air intake hose 14 is moved toward the formaldehyde emission source during detection, and the spherical mesh cover 5 will be placed at the emission source. In this step, the spherical mesh cover 5 is arranged to prevent the end of the air intake hose 14 from contacting the emission source, thereby reducing the situation in which the end of the air intake hose 14 is sucked together with the cabinet or board surface during inhalation, resulting in the air intake hose 14 being blocked and unable to inhale.

[0029] like Figure 4 As shown, a suction cup 6 is fixedly connected to the bottom of the fixing ring 2; the suction cup 6 is arranged close to one side of the spherical mesh cover 5; during operation, after the spherical mesh cover 5 is placed at the position of the formaldehyde emission source, the suction cup 6 can be sucked onto the surface of the cabinet or board to fix the position of the end of the air intake hose 14. In this step, the suction cup 6 can be arranged to fix the end of the air intake hose 14 to the cabinet or board to reduce the movement of the spherical mesh cover 5 during inhalation, so as to improve the stability during inhalation.

[0030] like Figure 3As shown, the inner wall of the first fixed cover 12 is fixedly connected with a filter screen 7; during operation, when the airflow enters the interior of the detection box 1, part of the dust will be filtered out through the filter screen 7, and then enter the interior of the detection box 1. In this step, the air entering the interior of the detection box 1 can be filtered by setting the filter screen 7, which can reduce the dust contained in the airflow and reduce the corrosion of the dust to the detector 11, thereby playing a protective role.

[0031] Working principle: During operation, the detection box 1 is placed on an open space indoors, and then the end of the air intake hose 14 is pulled close to the position of the formaldehyde emission source, such as paint, cabinets, door panels, etc., and then the motor 17 is turned on for suction to allow the air flow to enter the detection box 1 from the end of the air intake hose 14, and then the detector 11 detects the formaldehyde content in the air flow. When the air intake hose 14 is pulled, the fixing ring 2 can limit the bending degree of the air intake hose 14. When the air intake hose 14 moves, it will bend or knot. At this time, the fixing ring 2 will limit the air intake hose 14 to reduce the bending or knotting of the air intake hose 14. When the gas enters the interior of the detection box 1, it will flow into the air outlet hood 3 from the air outlet hole 32 and then pass through the air outlet pipe 31 is discharged, at this time, the end of the outlet pipe 31 can be pulled to the outdoor position to discharge the air to the outdoor, when the air intake hose 14 is pulled, the middle part of the air intake hose 14 will be bent, and at the same time, the steel wire 21 can be bent and contact the surface of the air intake hose 14, at this time, the protective cover 4 is covered on the side wall of the steel wire 21 to avoid direct contact between the air intake hose 14 and the steel wire 21, during detection, the end of the air intake hose 14 is moved toward the formaldehyde emission source, at this time, the spherical mesh cover 5 will be placed at the emission source, when the spherical mesh cover 5 is placed at the formaldehyde emission source position, the suction cup 6 can be sucked on the surface of the cabinet or board to fix the position of the end of the air intake hose 14, when the airflow enters the interior of the detection box 1, it will pass through the filter 7 to filter out some dust, and then enter the interior of the detection box 1.

[0032] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A formaldehyde detection device for building materials, comprising a detection box (1); characterized in that: The side wall of the detection box (1) is fixedly connected to a first fixed cover (12); the side wall of the first fixed cover (12) is fixedly connected to a second fixed cover (13); the side wall of the second fixed cover (13) is connected to a plurality of air intake hoses (14); the side wall of the detection box (1) is provided with a plurality of first air intake holes (15); the side wall of the first fixed cover (12) is provided with a plurality of second air intake holes (16); the side wall of the first fixed cover (12) is fixedly connected to a motor (17); the output end of the motor (17) is fixedly connected to a rotating shaft (18); the side wall of the rotating shaft (18) is fixedly connected to a plurality of fan blades (19); the bottom of the detection box (1) is fixedly connected to a detector (11); the detector (11) is located inside the detection box (1).

2. A formaldehyde detection device for building materials according to claim 1, characterized in that The side wall of the air intake hose (14) is fixedly connected to a plurality of fixing rings (2); the plurality of fixing rings (2) are evenly distributed on the side wall of the air intake hose (14); and the side walls of two fixing rings (2) adjacent to each other are commonly fixedly connected to a plurality of steel wires (21).

3. A formaldehyde detection device for building materials according to claim 2, characterized in that: The side wall of the detection box (1) is fixedly connected with an air outlet hood (3); the end of the air outlet hood (3) is connected with an air outlet pipe (31); and the side wall of the detection box (1) is provided with a plurality of air outlet holes (32).

4. A formaldehyde detection device for building materials according to claim 3, characterized in that: A protective sleeve (4) is fixedly connected to the middle of each of the plurality of steel wires (21); the protective sleeve (4) is flexibly arranged.

5. A formaldehyde detection device for building materials according to claim 4, characterized in that: The end of the air intake hose (14) is fixedly connected with a spherical mesh cover (5); the end of the spherical mesh cover (5) is arranged to cover the outer side wall of the air intake hose (14).

6. A formaldehyde detection device for building materials according to claim 5, characterized in that: A suction cup (6) is fixedly connected to the bottom of the fixing ring (2); the suction cup (6) is arranged close to one side of the spherical mesh cover (5).

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