Formaldehyde content detection device for production workshop

Abstract

The formaldehyde content detection device comprises a base, universal wheels with locks are rotationally installed at the four corners of the bottom of the base, two electric telescopic rods are fixedly installed at the top of the base, the extending ends of the two electric telescopic rods are fixedly connected with a protective shell, and the top of the protective shell is provided with an opening. A formaldehyde sensor is fixedly installed on the inner wall of the left side of the protective shell, a circular pipe is slidably arranged in the protective shell in a sleeved mode, and the top end of the circular pipe extends to the position above the protective shell and is fixedly connected with a cylindrical stainless steel filter screen. By arranging a series of structures, the formaldehyde content in the gas in the production workshop can be detected, the cylindrical stainless steel filter screen can be protected against contamination when not used, the safety of the cylindrical stainless steel filter screen when not used is improved, the effect of purifying the gas in the production workshop during detection is achieved, and the detection efficiency is improved. And the cylindrical stainless steel filter screen can be integrally and automatically cleaned and dredged from inside to outside during use, so that the long-acting use stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of formaldehyde content detection equipment, in particular to a formaldehyde content detection device for a production workshop. Background Art

[0002] Formaldehyde, also known as formic aldehyde, is an organic compound, a colorless, irritating gas that can irritate the eyes and nose. Newly built production workshops, wooden door production workshops, and other decoration raw material production workshops inevitably contain formaldehyde. Therefore, it is necessary to test the formaldehyde content in the workshop environment so that personnel can control the formaldehyde content and take necessary safety measures.

[0003] According to the search report of the new search agency, announcement number CN218512383U discloses an air formaldehyde content detection device, including a base, a lifting mechanism and a detection mechanism; rollers are fixedly installed at the four corners of the lower surface of the base, and each roller is provided with a brake, which is convenient for moving the device and detecting the air at different positions. The setting of the lifting mechanism is convenient for detecting the formaldehyde content in the air at different heights, thereby improving the detection range. By operating the control panel, the fan and the formaldehyde sensor are started, and the fan rotates to generate wind suction, and the indoor air is sucked into the detection box through the mesh cover and contacts the formaldehyde sensor in the detection box, thereby improving the accuracy of formaldehyde detection. The setting of the mesh cover prevents the inside of the detection box from being blocked by garbage. The setting of the activated carbon filter is convenient for filtering formaldehyde particles and impurities in the air, purifying the air, and improving the purification efficiency.

[0004] The above technology discloses an air formaldehyde content detection device, which draws external air into a detection box through a fan and a mesh cover, uses a formaldehyde sensor to detect the formaldehyde content, and purifies the gas discharged after the detection through an activated carbon filter. However, there are still the following deficiencies when used: 1. As the filtration progresses, since the production and processing workshop environment has certain solid residue impurities, the outer side of the mesh cover is easily covered with a lot of impurities and causes blockage, which affects the long-term detection work. The mesh cover cannot be automatically cleaned and unblocked when in use, and the long-term use stability is not ideal; 2. When not in use, the mesh cover is directly exposed to the outside and has a high risk of being contaminated; improvement is needed. In view of this, the present application proposes a formaldehyde content detection device for a production workshop to solve the above problems. Utility Model Content

[0005] The purpose of the present invention is to provide a formaldehyde content detection device for a production workshop to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the utility model provides the following technical solution: a formaldehyde content detection device for a production workshop, comprising a base, wherein the four corners of the bottom of the base are rotatably mounted with universal wheels with locks, and two electric telescopic rods are fixedly mounted on the top of the base, and the protruding ends of the two electric telescopic rods are fixedly connected to a protective shell with an opening at the top, and a formaldehyde sensor is fixedly mounted on the left inner wall of the protective shell, and a circular tube is provided in the sliding sleeve of the protective shell, and the top end of the circular tube extends to the top of the protective shell and is fixedly connected to a cylindrical stainless steel filter screen, and a cover plate is fixedly mounted on the top of the cylindrical stainless steel filter screen; the electric telescopic rods are provided for driving the protective shell to rise and fall according to the formaldehyde detection height in the production workshop;

[0007] A lifting and rotating drive assembly is embedded on the bottom inner wall of the protective shell, a rotating tube rotatably connected to the bottom of the cover plate is installed on the top of the lifting and rotating drive assembly, a plurality of fan blades are fixedly connected to the outside of the rotating tube, the bottom of the fan blades is the air outlet, and the top of the fan blades is the air inlet. The lifting and rotating drive assembly is used to drive the rotating tube to lift and rotate, and the rotation of the rotating tube is used to drive the fan blades to rotate. When the fan blades rotate, the gas in the external workshop is extracted through the cylindrical stainless steel filter and blown into the protective shell. The provided formaldehyde sensor is used to detect the formaldehyde content of the gas entering the protective shell;

[0008] The bottom right side of the protective shell is connected to and fixed with an exhaust filter assembly, which is used to allow gas to be discharged from the protective shell and purify the discharged gas;

[0009] The right side of the rotating pipe is connected to and fixed with a backflush cleaning assembly that cooperates with the inner side of the cylindrical stainless steel filter. An air pump is fixedly installed on the top of the cover plate. The rotating pipe sealing sleeve is arranged on the outside of the air outlet of the air pump. The air inlet of the air pump extends into the cylindrical stainless steel filter. The backflush cleaning assembly is used to backflush and clean the cylindrical stainless steel filter from the inside to the outside when the air pump is started and the rotating pipe rotates.

[0010] Preferably, the lifting and rotating drive assembly includes an electric push rod embedded and fixed on the bottom inner wall of the protective shell, the protruding end of the electric push rod is fixedly connected to the arched seat, the rotating tube is rotatably embedded in the top of the arched seat, and a driving motor is fixedly installed on the bottom inner wall of the arched seat. The bottom end of the rotating tube is set to a blocking structure and is fixedly connected to the top of the output shaft of the driving motor; the set electric push rod, arched seat and driving motor cooperate, and the electric push rod is used to drive the rotating tube to rise and fall through the arched seat, and the driving motor is used to drive the rotating tube to rotate, and the rotating tube is used to drive the cylindrical stainless steel filter screen to move down through the cover plate when it descends and be stored in the protective shell for protection, so as to achieve the effect of protecting the cylindrical stainless steel filter screen from pollution when not in use.

[0011] Preferably, the exhaust filter assembly includes an L-shaped exhaust pipe connected and fixed to the bottom right side of the protective shell, and the bottom end of the L-shaped exhaust pipe is fixed with an activated carbon filter plate by two bolts, and the top of the activated carbon filter plate is provided with large-particle activated carbon filled in the L-shaped exhaust pipe; the L-shaped exhaust pipe, activated carbon filter plate and large-particle activated carbon are arranged in coordination, and the gas in the protective shell is discharged into the L-shaped exhaust pipe, and then passes through the large-particle activated carbon and the activated carbon filter plate for discharge, and the formaldehyde in the gas is filtered and purified by using the large-particle activated carbon and the activated carbon filter plate, and circulated in sequence, which has the effect of purifying the gas in the production workshop.

[0012] Preferably, the back-blowing cleaning assembly includes a horizontal tube connected and fixed to the top of the right side of the rotating tube, the right end of the horizontal tube is connected and fixed with a vertical tube with a top and bottom sealing structure, and the right side of the vertical tube is connected and fixed with multiple back-blowing pipe heads, which cooperate with the inner side of the cylindrical stainless steel filter screen; the horizontal tube, vertical tube and back-blowing pipe head are arranged to cooperate, and when the air pump is started, a part of the gas entering the cylindrical stainless steel filter screen is extracted and pumped into the rotating tube, and the gas enters the vertical tube through the horizontal tube, and then blows out through multiple back-blowing pipe heads. When the rotating tube rotates, the multiple back-blowing pipe heads are driven to rotate through the horizontal tube and the vertical tube in turn, and the rotating blowing method is used to achieve the effect of automatically back-blowing and cleaning the cylindrical stainless steel filter screen from the inside to the outside during use, and the back-blowing cleaning part is moving, and only occupies a very small part during back-blowing, so it does not affect the normal ventilation and air intake work of the cylindrical stainless steel filter screen.

[0013] Preferably, a battery is fixedly installed on the top of the base, and the electric telescopic rod, electric push rod, drive motor and air pump are all electrically connected to the battery. A synchronous control switch is fixedly connected to the rear side of the electric telescopic rod on the left, and both electric telescopic rods are electrically connected to the synchronous control switch.

[0014] Preferably, a wireless remote control switch is fixed to and electrically connected to the rear side of the drive motor, and the wireless remote control switch is matched with an external remote controller.

[0015] Preferably, a control screen electrically connected to the formaldehyde sensor is fixedly installed on the left side of the protective shell, and the control screen is electrically connected to the battery; the provided formaldehyde sensor is used to transmit the detected data to the data processor in the control screen, and then the control screen displays the detection data, making it convenient for personnel to observe and collect data.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The detection height can be flexibly adjusted according to the detection requirements in the production workshop through the combination of the provided base, lockable universal wheels, electric telescopic rod and protective shell;

[0018] 2. The protective shell, lifting and rotating drive assembly, formaldehyde sensor, rotating tube, fan blades and cylindrical stainless steel filter are coordinated to detect the formaldehyde content in the gas in the production workshop. The cylindrical stainless steel filter can also be protected from fouling when not in use, thereby improving the safety of the cylindrical stainless steel filter when not in use.

[0019] 3. Through the cooperation of the protective shell and the exhaust filter assembly, the detected gas can be discharged and the formaldehyde in the gas can be adsorbed and purified, thereby purifying the gas in the production workshop;

[0020] 4. Through the cooperation of the rotating pipe, backflush cleaning component and air pump, the cylindrical stainless steel filter can be automatically backflush cleaned from the inside to the outside during use, reducing the phenomenon of ventilation and air intake affected by the accumulation of solid slag on the outside of the cylindrical stainless steel filter, and improving the long-term stability of use.

[0021] The utility model is equipped with a series of structures, which can detect the formaldehyde content in the gas in the production workshop, and can protect the cylindrical stainless steel filter from being contaminated when not in use, thereby improving the safety of the cylindrical stainless steel filter when not in use. It has the effect of purifying the gas in the production workshop during detection, and is convenient for automatically backflushing and cleaning the cylindrical stainless steel filter from the inside to the outside when in use, thereby improving the long-term stability of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural schematic diagram of a formaldehyde content detection device for a production workshop proposed by the utility model;

[0023] Figure 2 This is a schematic cross-sectional view of a formaldehyde content detection device for a production workshop proposed by the present invention;

[0024] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of part A in FIG.

[0025] In the figure: 1. Protective shell; 2. Formaldehyde sensor; 3. Round tube; 4. Cylindrical stainless steel filter; 5. Cover plate; 6. Reciprocating seat; 7. Drive motor; 8. Rotating tube; 9. Fan blades; 10. L-shaped exhaust pipe; 11. Activated carbon filter plate; 12. Electric push rod; 13. Electric telescopic rod; 14. Base; 15. Horizontal tube; 16. Vertical tube; 17. Backflush pipe head; 18. Air pump. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] like Figures 1 to 3 As shown, a formaldehyde content detection device for a production workshop proposed in this embodiment includes a base 14, and the four corners of the bottom of the base 14 are rotatably installed with universal wheels with locks. Two electric telescopic rods 13 are fixedly installed on the top of the base 14, and the protruding ends of the two electric telescopic rods 13 are fixedly connected to a protective shell 1 with an opening at the top. A formaldehyde sensor 2 is fixedly installed on the left inner wall of the protective shell 1, and a control screen electrically connected to the formaldehyde sensor 2 is fixedly installed on the left side of the protective shell 1; the set formaldehyde sensor 2 is used to transmit the detected data to the data processor in the control screen, and then the control screen displays the detected data, which is convenient for personnel to observe and collect data. A circular tube 3 is provided in the sliding sleeve of the protective shell 1. A limiting groove is provided on the right inner wall of the protective shell 1, and a limiting block slidably connected to the limiting groove is fixedly connected to the right side of the circular tube 3, which plays the effect of vertically guiding the circular tube 3 and limiting and preventing it from falling off. The top of the circular tube 3 extends to the top of the protective shell 1 and is fixedly connected to a cylindrical stainless steel filter screen 4. A cover plate 5 is fixedly installed on the top of the cylindrical stainless steel filter screen 4. A synchronous control switch is fixedly connected to the rear side of the electric telescopic rod 13 on the left. Both electric telescopic rods 13 are electrically connected to the synchronous control switch. The synchronous control switch is provided to facilitate personnel to synchronously open and close the two electric telescopic rods 13; the provided electric telescopic rod 13 is used to drive the protective shell 1 to rise and fall according to the formaldehyde detection height in the production workshop;

[0028] A lifting and rotating drive assembly is embedded on the bottom inner wall of the protective shell 1. A rotating tube 8 rotatably connected to the bottom of the cover plate 5 is installed on the top of the lifting and rotating drive assembly. A plurality of fan blades 9 are fixedly connected to the outside of the rotating tube 8. The bottom of the fan blade 9 is the air outlet, and the top of the fan blade 9 is the air inlet. The lifting and rotating drive assembly is used to drive the rotating tube 8 to lift and rotate, and the rotation of the rotating tube 8 is used to drive the fan blades 9 to rotate. When the fan blades 9 rotate, the gas in the external workshop is extracted through the cylindrical stainless steel filter 4 and blown into the protective shell 1. The provided formaldehyde sensor 2 is used to detect the formaldehyde content of the gas entering the protective shell 1;

[0029] The bottom right side of the protective shell 1 is connected and fixed with an exhaust filter assembly, which is used to discharge gas from the protective shell 1 and purify the discharged gas; the right side of the rotating tube 8 is connected and fixed with a backflush cleaning assembly that cooperates with the inner side of the cylindrical stainless steel filter 4, and the top of the cover plate 5 is fixedly installed with an air pump 18. The rotating tube 8 is sealed and rotated on the outside of the air outlet of the air pump 18, and the air inlet of the air pump 18 extends to the cylindrical stainless steel filter 4. The backflush cleaning assembly is used to backflush and clean the cylindrical stainless steel filter 4 from the inside to the outside when the air pump 18 is started and the rotating tube 8 rotates.

[0030] Specifically, the lifting and rotating drive assembly includes an electric push rod 12 embedded and fixed on the bottom inner wall of the protective shell 1, the protruding end of the electric push rod 12 is fixedly connected to the round seat 6, and the rotating tube 8 is rotatably embedded in the top of the round seat 6, wherein the top of the round seat 6 is provided with a circular hole, and bearings are fixedly installed in the circular hole and at the bottom of the cover plate 5. The inner ring of the bearing is fixedly fitted to the outer side of the rotating tube 8, which has the effect of rotatably installing the rotating tube 8. A driving motor 7 is fixedly installed on the bottom inner wall of the round seat 6, and the bottom end of the rotating tube 8 is set as a blocking structure and fixedly connected to the top of the output shaft of the driving motor 7. The rear side of the driving motor 7 is fixed and electrically connected to a wireless remote control switch. The wireless remote control switch is matched with an external remote control. A battery is fixedly installed on the top of the base 14. The electric telescopic rod 13, the electric push rod 12, the drive motor 7 and the air pump 18 are all electrically connected to the battery, and the battery is also electrically connected to the control panel to provide power. The electric push rod 12, the circular seat 6 and the drive motor 7 are coordinated. The electric push rod 12 is used to drive the rotating tube 8 to rise and fall through the circular seat 6, and the drive motor 7 is used to drive the rotating tube 8 to rotate. When the rotating tube 8 descends, it drives the cylindrical stainless steel filter screen 4 to move down through the cover plate 5 for protection in the protective shell 1, so as to achieve the effect of protecting the cylindrical stainless steel filter screen 4 from pollution when not in use.

[0031] Furthermore, the exhaust filter assembly includes an L-shaped exhaust pipe 10 connected and fixed to the bottom right side of the protective shell 1. The bottom end of the L-shaped exhaust pipe 10 is fixed with an activated carbon filter plate 11 by two bolts. The top of the activated carbon filter plate 11 is provided with large-particle activated carbon filled in the L-shaped exhaust pipe 10; the L-shaped exhaust pipe 10, the activated carbon filter plate 11 and the large-particle activated carbon are arranged in cooperation, and the gas in the protective shell 1 is discharged into the L-shaped exhaust pipe 10, and then passes through the large-particle activated carbon and the activated carbon filter plate 11 for discharge. The large-particle activated carbon and the activated carbon filter plate 11 are used to filter and purify the formaldehyde in the gas, and circulate in sequence, which has the effect of purifying the gas in the production workshop.

[0032] The air in the cylinder 4 is blown out of the cylinder 4 by the blowpipe 17 and the air in the cylinder 4 is blown out of the cylinder 4.

[0033] The method of using this embodiment is as follows: the universal wheels with locks are provided to facilitate personnel to flexibly move the device, and the device is moved to the area to be tested in the production workshop, and the drive motor 7 and the air pump 18 are started. When the drive motor 7 is started, the rotating tube 8 is driven to rotate, and the rotating tube 8 drives the fan blades 9 to rotate. When the fan blades 9 rotate, the gas in the external workshop is extracted through the cylindrical stainless steel filter 4 and blown into the protective shell 1. The formaldehyde sensor 2 detects the formaldehyde content of the gas entering the protective shell 1 and transmits it to the control screen to display the detection data so that personnel can observe and collect the data; the gas in the protective shell 1 is discharged into the L-shaped exhaust pipe 10, and then passes through the large-granular activated carbon and the activated carbon filter plate 11 for discharge. The large-granular activated carbon and the activated carbon filter plate 11 are used to filter and purify the formaldehyde in the gas, and the cycle is in sequence, which has the effect of purifying the gas in the production workshop;

[0034] When the rotating pipe 8 rotates, it also drives the multiple back-blowing pipe heads 17 to rotate through the horizontal pipe 15 and the vertical pipe 16 in turn. When the air pump 18 is started, it extracts a part of the gas entering the cylindrical stainless steel filter 4 and pumps it into the rotating pipe 8. The gas enters the vertical pipe 16 through the horizontal pipe 15 and is blown out through the multiple back-blowing pipe heads 17. By using the rotating blowing method, the cylindrical stainless steel filter 4 is automatically back-blown from the inside to the outside during use, thereby improving the long-term use stability. The back-blowing cleaning part is moving, and only occupies a very small part during back-blowing, so it does not affect the normal ventilation and air intake work of the cylindrical stainless steel filter 4.

[0035] In addition, when it is necessary to adjust the detection height according to the on-site detection requirements, the personnel use the synchronous control switch to control the two electric telescopic rods 13 to start in the forward direction, so that they drive the protective shell 1 to move upward to reach the adjusted detection height; after use, the electric push rod 12 is started in the reverse direction to drive the return seat 6 to move downward, and the return seat 6 drives the rotating tube 8 to move downward, and the rotating tube 8 drives the cylindrical stainless steel filter 4 to move down through the cover plate 5 and be stored in the protective shell 1 for protection, so as to achieve the effect of protecting the cylindrical stainless steel filter 4 from damage when not in use, thereby improving the safety of the cylindrical stainless steel filter 4 when not in use.

[0036] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A formaldehyde content detection device for a production workshop, comprising a base (14), wherein the four corners of the bottom of the base (14) are rotatably mounted with universal wheels with locks, characterized in that: Two electric telescopic rods (13) are fixedly mounted on the top of the base (14); the extended ends of the two electric telescopic rods (13) are fixedly connected to a protective shell (1) with an opening at the top; a formaldehyde sensor (2) is fixedly mounted on the left inner wall of the protective shell (1); a circular tube (3) is provided in a sliding sleeve inside the protective shell (1); the top end of the circular tube (3) extends to the top of the protective shell (1) and is fixedly connected to a cylindrical stainless steel filter (4); a cover plate (5) is fixedly mounted on the top of the cylindrical stainless steel filter (4); A lifting and rotating drive assembly is embedded on the inner wall of the bottom of the protective shell (1); a rotating tube (8) rotatably connected to the bottom of the cover plate (5) is installed on the top of the lifting and rotating drive assembly; a plurality of fan blades (9) are fixedly connected to the outer side of the rotating tube (8); the bottom of the fan blades (9) is an air outlet, and the top of the fan blades (9) is an air inlet; The bottom right side of the protective shell (1) is connected to and fixed with an exhaust filter assembly; The right side of the rotating tube (8) is connected to and fixed with a backflush cleaning component that matches the inner side of the cylindrical stainless steel filter (4); the top of the cover plate (5) is fixedly installed with an air pump (18); the rotating tube (8) is sealed and rotatably sleeved on the outside of the air outlet of the air pump (18); and the air inlet of the air pump (18) extends into the cylindrical stainless steel filter (4).

2. The formaldehyde content detection device for a production workshop according to claim 1, characterized in that: The lifting and rotating drive assembly comprises an electric push rod (12) embedded and fixed on the bottom inner wall of the protective shell (1), the protruding end of the electric push rod (12) is fixedly connected to the round seat (6), the rotating tube (8) is rotatably embedded on the top of the round seat (6), the driving motor (7) is fixedly installed on the bottom inner wall of the round seat (6), and the bottom end of the rotating tube (8) is set as a blocking structure and is fixedly connected to the top end of the output shaft of the driving motor (7).

3. The formaldehyde content detection device for a production workshop according to claim 1, characterized in that: The exhaust filter assembly comprises an L-shaped exhaust pipe (10) connected and fixed to the bottom of the right side of the protective shell (1); an activated carbon filter plate (11) is fixedly installed at the bottom end of the L-shaped exhaust pipe (10) by two bolts; and large-granular activated carbon filled in the L-shaped exhaust pipe (10) is provided on the top of the activated carbon filter plate (11).

4. The formaldehyde content detection device for a production workshop according to claim 1, characterized in that: The backflush cleaning assembly comprises a horizontal tube (15) connected and fixed to the top right side of the rotating tube (8); the right end of the horizontal tube (15) is connected and fixed to a vertical tube (16) with a blocking structure at the top and bottom; the right side of the vertical tube (16) is connected and fixed to a plurality of backflush pipe heads (17); the backflush pipe heads (17) are matched with the inner side of the cylindrical stainless steel filter screen (4).

5. The formaldehyde content detection device for a production workshop according to claim 2, characterized in that: A battery is fixedly installed on the top of the base (14); the electric telescopic rod (13), the electric push rod (12), the drive motor (7) and the air pump (18) are all electrically connected to the battery; a synchronous control switch is fixedly connected to the rear side of the electric telescopic rod (13) on the left side; and both electric telescopic rods (13) are electrically connected to the synchronous control switch.

6. The formaldehyde content detection device for a production workshop according to claim 2, characterized in that: A wireless remote control switch is fixed to and electrically connected to the rear side of the driving motor (7), and the wireless remote control switch is matched with an external remote controller.

7. The formaldehyde content detection device for a production workshop according to claim 5, characterized in that: A control screen electrically connected to the formaldehyde sensor (2) is fixedly mounted on the left side of the protective shell (1), and the control screen is electrically connected to the battery.

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