A portable rapid detection ventilation device

Abstract

The utility model discloses a portable rapid detection ventilation device, which aims to solve the shortcomings of the existing ventilation equipment in the prior art, which is large in size, inconvenient to use, and unable to detect various harmful gases. The utility model solves the above technical problems through the following technical solutions: including: a detection box, a gas guide structure is arranged in the detection box; a fan, which sucks the gas from the gas guide structure into the detection box; a gas sensor, which detects the concentration of harmful gases. In the utility model, by setting up a detection box, gas sensors, fans, gas guide structures and other devices are arranged in the detection box, so that the overall volume is small and more convenient to carry, and the gas sensor can detect a variety of harmful gases to ensure the safety of the operator's operation; and it can detect the concentration of harmful gases in real time, effectively reducing the probability of safety accidents when working in a limited space.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation equipment, and more specifically, to a portable rapid detection ventilation device. Background Art

[0002] In confined space operations, such as in sewer pipes, it is necessary to detect possible toxic and harmful gases such as carbon monoxide, hydrogen sulfide, and chlorine to determine whether the gas concentration exceeds the standard and take corresponding protective measures. Currently, before working in a confined space, the confined space is usually ventilated to allow the harmful gases to be discharged before gas detection. To ensure safety, when entering a confined space for inspection, it is necessary to wear labor protection equipment and personal protective equipment that meet the requirements (such as oxygen respirators, gas masks, etc.). The above detection process is not only inefficient, but also poses a major safety hazard.

[0003] Chinese patent announcement number CN114484670A, announcement date May 13, 2022, the name of the invention is integrated safety ventilation equipment, the application discloses a ventilation equipment, which mainly includes a direct expansion device and an air supply cavity, the air supply cavity is arranged at the bottom of the direct expansion device, and a regeneration air inlet is arranged on one side of the air supply cavity, and an air supply port is arranged on one side of the air supply cavity and is connected to the exhaust box assembly, the heating air inlet filter box is arranged inside the air supply cavity and is connected to the regeneration air inlet, and a rotor cavity is arranged on one side of the heating air inlet filter box, and a treatment fan and a fresh air valve are respectively connected at both ends of the rotor cavity, and the other end of the treatment fan is connected to the air supply port assembly, and the dehumidification rotor is rotatably arranged in the rotor cavity. The above-mentioned equipment has the ability to safely supply air, but due to its large size, it is not convenient to carry and use, and it cannot detect various harmful gases. Utility Model Content

[0004] The utility model overcomes the shortcomings of the ventilation equipment in the prior art, such as being large in size, inconvenient to use, and unable to detect various harmful gases, and provides a portable rapid detection ventilation device, which has the characteristics of small size, easy to carry, and high exhaust efficiency, and can detect the concentration of harmful gases in real time, effectively reducing the probability of safety accidents when working in a limited space.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: a portable rapid detection ventilation device, comprising:

[0006] A detection box body, wherein a gas guiding structure is arranged in the detection box body;

[0007] A fan draws gas from the gas guide structure into the detection box;

[0008] Gas sensor, detects the concentration of harmful gases.

[0009] In the utility model, a detection box is provided, and gas sensors, fans, gas guide structures and other devices are provided in the detection box, so that the overall volume is small and more convenient to carry, and the gas sensor can detect a variety of harmful gases to ensure the operating safety of operators; and the concentration of harmful gases can be detected in real time, effectively reducing the probability of safety accidents when working in a limited space.

[0010] Preferably, a flip side panel is provided on one side of the detection box, and a side edge of one side of the flip side panel is hinged to the detection box.

[0011] A hinge is provided on the edge of the bottom of the flip side panel, so that the bottom edge of the flip side panel and the lower shell are rotatably connected, so that the flip side panel can be conveniently opened when the installation cavity needs to be opened.

[0012] Preferably, the gas guiding structure is a folded air duct, which can be stored in the detection box, and one end of the folded air duct is connected to the fan.

[0013] When the folded air duct is unfolded, the supporting ring can support the circumferential direction of the cylinder, so that the cylinder remains in an open state, so that the gas in the limited space can be smoothly drawn out by the axial flow fan.

[0014] Preferably, the detection box comprises a lower shell and an upper shell arranged above the lower shell; a front end shell is arranged at one end of the upper shell, and a flip side plate is arranged at the other end of the upper shell.

[0015] The detection box is composed of the above structure, which makes the overall structure simpler.

[0016] Preferably, the fan is an axial flow fan, one end of the axial flow fan is connected to the folded air duct, and the other end of the axial flow fan is provided with a fan protection cover.

[0017] The fan guard is used to prevent foreign matter from entering the interior of the axial flow fan.

[0018] Preferably, a humidity sensor is provided on the side wall of the axial flow fan.

[0019] The humidity sensor can detect the humidity of the gas when it passes through the axial flow fan, thereby determining the humidity conditions in a confined space.

[0020] Preferably, a middle partition is provided at the upper end of the lower shell, and an axial flow fan base is provided in the middle.

[0021] Support plates are arranged on both sides of the width space below the middle partition. The arrangement of the support plates on both sides forms a partition compartment at the bottom of the middle partition. The storage battery and the inverter are arranged in the partition compartment.

[0022] Preferably, the gas sensor is connected with a data output line, and an end of the data output line away from the gas sensor is connected to the detection box.

[0023] When the device is not in use, the gas guide structure is retracted and placed in the installation cavity. When it is necessary to detect the gas in the limited space, the gas sensor is pulled out and placed in the limited space to detect harmful gases.

[0024] Compared with the prior art, the beneficial effects of the utility model are as follows: by setting up a detection box, and setting up gas sensors, fans, gas guide structures and other devices in the detection box, the overall volume is small and more convenient to carry, and the gas sensor can detect a variety of harmful gases to ensure the operating safety of operators; and it can detect the concentration of harmful gases in real time, effectively reducing the probability of safety accidents when working in a limited space. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an exploded view of the utility model;

[0026] Figure 2 It is an exploded view of the utility model from another angle;

[0027] Figure 3 It is a schematic diagram of the folding air duct of the utility model;

[0028] Figure 4 It is a three-dimensional structural diagram of the utility model;

[0029] In the figure: 1, detection box, 11, lower shell, 12, upper shell, 13, front shell, 131, circular notch, 14, flip side panel, 15, hinge, 16, sealing latch, 17, alarm light, 18, display screen, 19, folding air duct;

[0030] 2. Fan, 21. Humidity sensor;

[0031] 3. Gas sensor;

[0032] 4. middle partition, 41. support plate, 42. battery, 43. inverter, 44. axial flow fan base;

[0033] 5. Control panel, 51. Power switch, 52. External power port, 53. External power port, 54. Charging port, 55. Ground port, 56. Battery level display, 57. USB output port. DETAILED DESCRIPTION

[0034] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0035] Embodiment 1: A portable rapid detection ventilation device, mainly comprising: a detection box 1, a fan 22 and a gas sensor 3.

[0036] The detection box 1 mainly includes a lower shell 11 and an upper shell 12 arranged above the lower shell 11. The cross-sectional shape of the upper shell 12 is an inverted U shape. The upper shell 12 is inverted on the lower shell 11 to form an installation cavity. A front shell 13 is fixedly arranged at one end of the upper shell 12, and a flip side plate 14 is arranged at the other end of the upper shell 12. The lower shell 11, the upper shell 12, the front shell 13 and the flip side plate 14 cooperate with each other to form an installation cavity. A hinge 15 is arranged on the edge of the bottom of the flip side plate 14, so that the bottom edge of the flip side plate 14 and the lower shell 11 are rotatably connected. A sealing pin 16 is arranged on the side edges on both sides above the flip side plate 14. By arranging the sealing pin 16, when it is necessary to close the cavity in the upper shell 12, the sealing pin 16 can be fixedly connected to the upper shell.

[0037] The fan 2 in this embodiment is an axial flow fan 2, a circular notch 131 is provided on the front end shell 13, a middle partition 4 is provided above the upper shell, support plates 41 are provided on both sides of the width space below the middle partition 4, and the support plates 41 on both sides are provided so that a partition compartment is formed at the bottom of the middle partition 4, and a battery 42 and an inverter 43 are provided in the partition compartment. The battery 42 can be charged and discharged, so that the utility model can be used in different occasions. In order to reduce the overall weight of the whole machine, the battery 42 is set as a lithium battery. The inverter 43 can convert the DC power of the battery 42 into AC power.

[0038] An axial flow fan base 44 is fixedly arranged on the upper end surface of the middle partition 4. The surface of the axial flow fan base 44 is arc-shaped. The air outlet of the axial flow fan 2 corresponds to the circular notch 131. The bottom of the axial flow fan 2 is supported on the axial flow fan base 44. One end of the air inlet of the axial flow fan 2 is connected to the folded air duct 19. The end of the air outlet of the axial flow fan 2 is provided with a fan 2 protective cover, which is used to prevent foreign matter from entering the interior of the axial flow fan 2.

[0039] A gas guide structure is provided in the detection box 1, and the gas guide structure is arranged in the installation cavity. When the utility model is not in use, the gas guide structure can be retracted and placed in the installation cavity. When it is needed, the gas guide structure layer is taken out of the installation cavity, and the air intake port of the gas guide structure is placed in a limited space to extract gas. The gas guide structure in this embodiment is a tubular structure, which can be made of a leather tube or other materials.

[0040] A gas sensor 3 is arranged inside the detection box 1. The gas sensor 3 can detect combustible gas, carbon monoxide, hydrogen sulfide, oxygen, temperature, and humidity. The gas sensor 3 is connected to a data output line, and the end of the data output line away from the gas sensor is connected to the detection box 1. The gas sensor 3 is the same as the gas guide structure. When not in use, the gas guide structure is retracted and placed in the installation cavity. When it is necessary to detect the gas in the limited space, the gas sensor 3 is pulled out and placed in the limited space to detect harmful gases.

[0041] In addition, a humidity sensor 21 is provided on the side wall of the axial flow fan 2. The humidity sensor 21 can detect the humidity of the gas when it passes through the axial flow fan 2, thereby determining the humidity condition in the limited space. Furthermore, in order to facilitate the transportation of the detection box 1, handles can be provided on the top and both sides of the upper shell 12 to facilitate the transportation of the detection box 1. An alarm light 17 and a display screen 18 are also provided on the upper shell 12. When the oxygen content in the limited space is too high, or the concentration of other harmful gases is too high, the alarm light 17 can flash in real time to alert the staff that the sealed space is not suitable for operation, and the display screen 18 can display the gas condition inside the limited space in real time, so that the gas condition in the limited space can be clearly understood.

[0042] A control panel 5 is provided on the front end shell 13 , and the control panel mainly comprises an internal power switch 51 , an internal-external power switching switch 52 , an external power port 53 , a charging port 54 , a grounding port 55 , a USB output port 57 , and a power display 56 .

[0043] The working principle of the utility model is as follows: when in use, first open the flip side panel 14, take out the gas guide structure and the gas sensor 3 in the installation cavity, put the air inlet of the gas guide structure into the limited space, and place the gas sensor 3 inside the limited space, then turn on the machine; the axial flow fan 2 rotates, and the axial flow fan 2 extracts the gas in the limited space through the gas guide structure. During the extraction process, the gas sensor 3 continuously detects the gas in the limited space. When the oxygen concentration of the gas in the limited space is low or the concentration of the harmful gas is too high, the alarm light 17 flashes to alarm. When the oxygen concentration or harmful gas in the limited space reaches a safe value, the alarm light 17 stops alarming. When the oxygen concentration or harmful gas in the limited space reaches a safe value, the operator can enter the limited space to perform operations. During the operation, the axial flow fan 2 continuously extracts the gas in the limited space to ensure the safety of the operator.

[0044] In the utility model, a detection box 1 is provided, and a gas sensor 3, a fan 2, a gas guide structure and other devices are provided in the detection box 1, so that the overall volume is small and more convenient to carry, and the gas sensor 3 can detect a variety of harmful gases to ensure the safety of the operator's operation.

[0045] Embodiment 2: A portable rapid detection ventilation device mainly comprises: a detection box 1, a fan 22 and a gas sensor 3.

[0046] The detection box 1 mainly includes a lower shell 11 and an upper shell 12 arranged above the lower shell 11. The cross-sectional shape of the upper shell 12 is an inverted U shape. The upper shell 12 is inverted on the lower shell 11 to form an installation cavity. A front shell 13 is fixedly arranged at one end of the upper shell 12, and a flip side plate 14 is arranged at the other end of the upper shell 12. The lower shell 11, the upper shell 12, the front shell 13 and the flip side plate 14 cooperate with each other to form an installation cavity. A hinge 15 is arranged on the edge of the bottom of the flip side plate 14, so that the bottom edge of the flip side plate 14 and the lower shell 11 are rotatably connected. A sealing pin 16 is arranged on the side edges on both sides above the flip side plate 14. By arranging the sealing pin 16, when it is necessary to close the cavity in the upper shell 12, the sealing pin 16 can be fixedly connected to the upper shell.

[0047] The fan 2 in this embodiment is an axial flow fan 2, a circular notch 131 is provided on the front end shell 13, a middle partition 4 is provided above the upper shell, support plates 41 are provided on both sides of the width space below the middle partition 4, and the support plates 41 on both sides are provided so that a partition compartment is formed at the bottom of the middle partition 4, and a battery 42 and an inverter 43 are provided in the partition compartment. The battery 42 can be charged and discharged, so that the utility model can be used in different occasions. In order to reduce the overall weight of the whole machine, the battery 42 is set as a lithium battery. The inverter 43 can convert the DC power of the battery 42 into AC power.

[0048] An axial flow fan base 44 is fixedly arranged on the upper end surface of the middle partition 4. The surface of the axial flow fan base 44 is arc-shaped. The air outlet of the axial flow fan 2 corresponds to the circular notch 131. The bottom of the axial flow fan 2 is supported on the axial flow fan base 44. One end of the air inlet of the axial flow fan 2 is connected to the folded air duct 19. The end of the air outlet of the axial flow fan 2 is provided with a fan 2 protective cover, which is used to prevent foreign matter from entering the interior of the axial flow fan 2.

[0049] A gas guide structure is provided in the detection box 1, and the gas guide structure is arranged in the installation cavity. When the utility model is not in use, the gas guide structure can be retracted and placed in the installation cavity. When it is needed, the gas guide structure layer is taken out of the installation cavity, and the air intake port of the gas guide structure is placed in a limited space to extract gas. The gas guide structure in this embodiment is a tubular structure, which can be made of a leather tube or other materials.

[0050] A gas sensor 3 is arranged inside the detection box 1. The gas sensor 3 can detect combustible gas, carbon monoxide, hydrogen sulfide, oxygen, temperature, and humidity. The gas sensor 3 is connected to a data output line, and the end of the data output line away from the gas sensor is connected to the detection box 1. The gas sensor 3 is the same as the gas guide structure. When not in use, the gas guide structure is retracted and placed in the installation cavity. When it is necessary to detect the gas in the limited space, the gas sensor 3 is pulled out and placed in the limited space to detect harmful gases.

[0051] In addition, a humidity sensor 21 is provided on the side wall of the axial flow fan 2. The humidity sensor 21 can detect the humidity of the gas when it passes through the axial flow fan 2, thereby determining the humidity condition in the limited space. Furthermore, in order to facilitate the transportation of the detection box 1, handles can be provided on the top and both sides of the upper shell 12 to facilitate the transportation of the detection box 1. An alarm light 17 and a display screen 18 are also provided on the upper shell 12. When the oxygen content in the limited space is too high, or the concentration of other harmful gases is too high, the alarm light 17 can flash in real time to alert the staff that the sealed space is not suitable for operation, and the display screen 18 can display the gas condition inside the limited space in real time, so that the gas condition in the limited space can be clearly understood.

[0052] A control panel 5 is provided on the front end shell 13 , and the control panel mainly comprises an internal power switch 51 , an internal-external power switching switch 52 , an external power port 53 , a charging port 54 , a grounding port 55 , a USB output port 57 , and a power display 56 .

[0053] The working principle of the utility model is as follows: when in use, first open the flip side panel 14, take out the gas guide structure and the gas sensor 3 in the installation cavity, put the air inlet of the gas guide structure into the limited space, and place the gas sensor 3 inside the limited space, then turn on the machine; the axial flow fan 2 rotates, and the axial flow fan 2 extracts the gas in the limited space through the gas guide structure. During the extraction process, the gas sensor 3 continuously detects the gas in the limited space. When the oxygen concentration of the gas in the limited space is low or the concentration of the harmful gas is too high, the alarm light 17 flashes to alarm. When the oxygen concentration or harmful gas in the limited space reaches a safe value, the alarm light 17 stops alarming. When the oxygen concentration or harmful gas in the limited space reaches a safe value, the operator can enter the limited space to perform operations. During the operation, the axial flow fan 2 continuously extracts the gas in the limited space to ensure the safety of the operator.

[0054] The gas guiding structure is a foldable air duct 19. The main body of the foldable air duct 19 is composed of a cylinder. The material of the cylinder can be cloth or leather. The cylinder is provided with a number of evenly arranged supporting rings along its length. When the foldable air duct 19 is unfolded, the supporting rings can support the circumferential direction of the cylinder, so that the cylinder remains in an open state, thereby effectively preventing the foldable air duct 19 from being closed by the action of air pressure during gas detection, so that the gas in the limited space can be smoothly extracted by the axial flow fan 2; and, when the foldable air duct 19 is stored in the installation cavity, the foldable air duct 19 can be folded and stored in the installation cavity in sequence along the supporting rings, so that the foldable air duct 19 can be stored in the installation cavity more neatly.

[0055] The above-described embodiments are only preferred solutions of the present invention and are not intended to limit the present invention in any form. Other variations and modifications are possible without exceeding the technical solutions described in the claims.

Claims

1. A portable rapid detection ventilation device, characterized in that: include: A detection box body, wherein a gas guiding structure is arranged in the detection box body; The gas guiding structure is a folded air duct, which can be stored in the detection box, and one end of the folded air duct is connected to the fan; A fan sucks the gas from the gas guide structure into the detection box; the fan is an axial flow fan, one end of the axial flow fan is connected to the folded air duct, and the other end of the axial flow fan is provided with a fan protection cover; Gas sensor, detects the concentration of harmful gases.

2. The portable rapid detection ventilation device according to claim 1 is characterized in that: A flip side plate is arranged on one side of the detection box body, and a side edge of one side of the flip side plate is hinged to the detection box body.

3. The portable rapid detection ventilation device according to claim 1 is characterized in that: The detection box body comprises a lower shell and an upper shell arranged above the lower shell; a front end shell is arranged at one end of the upper shell, and a flip side plate is arranged at the other end of the upper shell.

4. The portable rapid detection ventilation device according to claim 1 is characterized in that: A humidity sensor is arranged on the side wall of the axial flow fan.

5. The portable rapid detection ventilation device according to claim 1 is characterized in that: The upper end of the lower shell is provided with a middle partition layer, and the middle partition layer is provided with an axial flow fan base.

6. The portable rapid detection ventilation device according to any one of claims 1 to 3, characterized in that: The gas sensor is connected with a data output line, and the end of the data output line away from the gas sensor is connected with the detection box.

Images