VOCs alarm device for printing workshop

Abstract

The utility model discloses a printing workshop VOCs alarm device comprising a chassis, an upper cover is arranged on the chassis, and a PCB, a power supply, a buzzer and an induction assembly are arranged in an inner cavity of the upper cover; the power supply, the buzzer and the induction assembly are electrically connected with the PCB. The upper surface of the upper cover is provided with an air inlet grid hole matched with the induction assembly, the lower surface of the base plate is provided with an adhesion layer, the middle of the base plate is provided with a fixing hole, and the circumferential side wall of the base plate is provided with an exhaust grid hole. According to the alarm device, main components are integrated in the space formed by the base plate and the upper cover to form a relatively independent and compact whole, and the design enables the device to be convenient to install and can adapt to different installation environments and position requirements of a printing workshop.

Description

Technical Field

[0001] This utility model belongs to the field of gas monitoring technology, and specifically relates to a VOCs alarm device for a printing workshop. Background Technology

[0002] Organic waste gas, also known as volatile organic compounds (VOCs), is mainly emitted by industrial stationary pollution sources. These include VOCs production industries such as petroleum refining, organic chemicals, pharmaceuticals, and tire manufacturing, as well as manufacturing industries that use VOCs products as raw materials, such as packaging and printing, machinery manufacturing, electronic product manufacturing, transportation equipment manufacturing, and wood-based panel and furniture manufacturing. Because organic waste gas can harm human health and the ecological environment, it is necessary to control its emissions and pollution, and to monitor the VOCs concentration in the production environment to prevent workers from working in environments with high concentrations of VOCs.

[0003] Traditional alarm devices may require laying a large number of cables for power supply and data transmission, which increases the difficulty of layout in the complex environment of the workshop. In addition, some devices only support specific installation methods, such as wall mounting, which cannot adapt to the diverse layout needs of printing workshops.

[0004] Therefore, this application provides a VOCs alarm device for printing workshops, which is convenient to install in printing workshops and can ensure the sensitivity of gas detection. Utility Model Content

[0005] This invention provides a VOCs alarm device for printing workshops, which aims to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A VOCs alarm device for a printing workshop includes: a chassis, a top cover on the chassis, and a PCB board, a power supply, a buzzer, and a sensing component disposed inside the top cover; the power supply, the buzzer, and the sensing component are electrically connected to the PCB board respectively.

[0008] The upper surface of the cover is provided with an air intake grille hole that cooperates with the sensing component, the lower surface of the chassis is provided with an adhesive layer, the middle part of the chassis is provided with a fixing hole, and the circumferential sidewall of the chassis is provided with an exhaust grille hole.

[0009] Furthermore, the sensing component includes: a mounting plate, on which a gas sensor is disposed; an exhaust pipe is disposed on the edge of the mounting plate; the sidewall of the exhaust pipe is a screen structure; an installation tube is fixedly connected to the side of the exhaust pipe away from the mounting plate; a fan is disposed in the inner cavity of the installation tube; a filter screen is disposed on the side of the fan away from the exhaust pipe; a threaded portion is disposed on the outer sidewall of the end of the installation tube away from the exhaust pipe; and a mating portion is disposed in the inner cavity of the upper cover that is threadedly connected to the threaded portion, the position of the mating portion corresponding to the air intake grille hole.

[0010] Furthermore, the gas sensor and the fan are electrically connected to the mounting plate, and the mounting plate is electrically connected to the PCB board.

[0011] Furthermore, the PCB board is equipped with a microcontroller, a storage module, and a wireless communication module.

[0012] Furthermore, the chassis is threadedly connected to the top cover.

[0013] Furthermore, the upper cover is provided with a power compartment, the upper part of the power compartment is open and is provided with a power cover, the power cover is snapped together with the upper cover.

[0014] Furthermore, the top cover is provided with a switch and an indicator light, which are electrically connected to the PCB board respectively.

[0015] Furthermore, the gas sensor is a TVOC sensor.

[0016] Compared with the prior art, the present invention has the following technical effects:

[0017] 1. The VOCs alarm device for printing workshops described in this utility model integrates the main components within the space formed by the chassis and the top cover, creating a relatively independent and compact whole. This design makes the device easy to install and adaptable to different installation environments and location requirements in printing workshops.

[0018] 2. The VOCs alarm device for printing workshops described in this utility model can be easily pasted onto the walls, equipment surfaces, and other locations in the printing workshop through an adhesive layer, without the need for complicated installation tools and operations, saving installation time and labor costs; the installation location can be flexibly selected according to actual needs to ensure that the sensing components can accurately detect the VOCs concentration in different areas of the workshop.

[0019] 3. The VOCs alarm device for a printing workshop described in this utility model forms an air circulation channel by cooperating with the exhaust grille and the air inlet grille, so that the air entering the inner cavity of the upper cover can be smoothly discharged, ensuring continuous air renewal and improving the detection accuracy of the sensing components.

[0020] 4. The VOCs alarm device for printing workshops described in this utility model has a fixing hole in the middle of the chassis. When a more secure installation of the alarm device is required, screws or other fasteners can be used through the fixing hole to fix the device to the mounting surface, preventing the device from loosening or falling off due to vibration, collision, etc., thus ensuring the normal operation of the device. Combined with the adhesive layer and the fixing hole, users can choose a suitable installation method according to the actual situation to meet different installation needs. Attached Figure Description

[0021] Figure 1 This is an overall schematic diagram of a VOCs alarm device for a printing workshop according to the present invention;

[0022] Figure 2 This is a schematic diagram of the upper part of the cover of a VOCs alarm device for a printing workshop according to this utility model;

[0023] Figure 3 This is a schematic diagram of the interior of the top cover of a VOCs alarm device for a printing workshop according to this utility model;

[0024] Figure 4 This is an overall side view of a VOCs alarm device for a printing workshop according to the present invention;

[0025] Figure 5 This is a schematic diagram of the internal chassis of a VOCs alarm device for a printing workshop according to this utility model;

[0026] Figure 6 This is a schematic diagram of the sensing component of a VOCs alarm device for a printing workshop according to this utility model.

[0027] In the picture:

[0028] 1. Chassis; 101. Exhaust grille; 102. Adhesive layer; 103. Mounting holes;

[0029] 2. Top cover; 201. Air intake grille; 202. Switch; 203. Indicator light; 204. Power supply compartment; 205. PCB board;

[0030] 3. Power supply cover; 4. Power supply; 5. Buzzer;

[0031] 6. Sensing components; 601. Mounting plate; 602. Gas sensor; 603. Exhaust pipe; 604. Mounting pipe; 605. Fan; 606. Filter screen; 607. Threaded part. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to specific embodiments of this application and the accompanying drawings.

[0033] like Figure 1-5 As shown, a VOCs alarm device for a printing workshop includes: a chassis 1, a top cover 2 on the chassis 1, and a PCB board 205, a power supply 4, a buzzer 5 and a sensing component 6 disposed in the inner cavity of the top cover 2; the power supply 4, the buzzer 5 and the sensing component 6 are electrically connected to the PCB board 205 respectively.

[0034] The upper surface of the cover 2 is provided with an air intake grille hole 201 that cooperates with the sensing component 6. The lower surface of the chassis 1 is provided with an adhesive layer 102. A fixing hole 103 is opened in the middle of the chassis 1. An exhaust grille hole 101 is opened on the circumferential side wall of the chassis 1.

[0035] The alarm device provided by this utility model integrates the main components within the space formed by the chassis 1 and the top cover 2, forming a relatively independent and compact whole. This design makes the device easy to install and can adapt to different installation environments and location requirements in the printing workshop. The alarm device can be easily pasted on the walls, equipment surfaces, and other locations in the printing workshop through the adhesive layer 102, without the need for complicated installation tools and operations, saving installation time and labor costs. The installation location can be flexibly selected according to actual needs to ensure that the sensing components can accurately detect the VOCs concentration in different areas of the workshop.

[0036] The device forms an airflow channel by cooperating with the exhaust grille 101 and the air inlet grille 201, allowing the air entering the inner cavity of the upper cover 2 to be smoothly discharged, ensuring continuous air renewal, improving the accuracy of the sensing component detection 6, and enabling continuous monitoring of VOCs concentration in the printing workshop, avoiding inaccurate detection results due to localized stagnant air.

[0037] like Figure 6 As shown, the sensing component 6 includes: a mounting plate 601, a gas sensor 602 disposed on the mounting plate 601, an exhaust pipe 603 disposed on the edge of the mounting plate 601, the sidewall of the exhaust pipe 603 being a screen structure, an installation pipe 604 fixedly connected to the side of the exhaust pipe 603 away from the mounting plate 601, a fan 605 disposed in the inner cavity of the installation pipe 604, a filter screen 606 disposed on the side of the fan 605 away from the exhaust pipe 603, a threaded portion 607 disposed on the outer sidewall of the end of the installation pipe 604 away from the exhaust pipe 603, and a mating portion that is threadedly connected to the threaded portion 607 in the inner cavity of the upper cover 2, the position of the mating portion corresponding to the air intake grille hole 201.

[0038] The sensing component 6 is threadedly connected to the mating part of the inner cavity of the upper cover 2 via a threaded portion 607 on the outer wall of one end of the mounting tube 604. This detachable connection facilitates the installation and removal of the sensing component 6. During installation, the operator only needs to align the threaded portion 607 with the mating part and rotate it to tighten it. When the sensing component 6 needs maintenance, replacement of the gas sensor 602, or cleaning of internal components, it can also be easily removed from the device, reducing maintenance costs and difficulty.

[0039] Furthermore, the position of the mating part corresponds to the air inlet grille 201, ensuring that the air entering from the air inlet grille 201 can be accurately received and processed by the sensing component 6, improving the efficiency and accuracy of gas detection, and enabling the gas sensor 602 to monitor the concentration of VOCs in the printing workshop in a timely and effective manner.

[0040] The fan 605 inside the mounting tube 604 accelerates airflow, allowing air in the printing workshop to enter the sensing component 6 more quickly through the air inlet 201. This not only improves the response speed of gas detection, enabling timely detection of changes in VOC concentration, but also ensures continuous air renewal around the gas sensor 602, avoiding inaccurate detection results due to localized gas accumulation.

[0041] In one specific embodiment, the gas sensor 602 and the fan 605 are electrically connected to the mounting plate 601, and the mounting plate 601 is electrically connected to the PCB board 205.

[0042] After the gas sensor 602 detects the VOCs concentration signal in the printing workshop, it can quickly and stably transmit the signal to the PCB board 205 through the mounting plate 601. The mounting plate 601 can perform preliminary processing and organization of the signal, reduce interference and loss during signal transmission, and ensure that the PCB board 205 can accurately receive the detection data of the gas sensor 602, thereby making timely judgments and responses.

[0043] Furthermore, the PCB board 205 can precisely control the fan 605 via the mounting plate 601. For example, when the gas sensor 602 detects a high VOC concentration, the PCB board 205 can send a command to the fan 605 via the mounting plate 601 to increase the fan speed, accelerate airflow, and allow more air to enter the sensing component for detection, thereby improving the timeliness and accuracy of detection. When the detected VOC concentration is low, the PCB board 205 can control the fan 605 to reduce its speed to save energy.

[0044] In one specific embodiment, the PCB board 205 is provided with a microcontroller, a storage module and a wireless communication module.

[0045] The microcontroller coordinates the operation of various modules on PCB 205 and other components within the device. It controls the storage module's operation of storing detection data, ensuring accurate recording. Simultaneously, it manages the communication process of the wireless communication module, guaranteeing reliable data transmission. Through the wireless communication module, the alarm device can transmit detected VOCs concentration data in real time to a remote monitoring center or the mobile terminal device of staff. Staff can monitor the environmental conditions in the printing workshop anytime, anywhere, and even when not physically present, can promptly detect abnormalities and remotely issue control commands, such as activating ventilation equipment or adjusting device parameters, thus achieving remote monitoring and management of the workshop environment.

[0046] In one specific embodiment, the chassis 1 is threadedly connected to the upper cover 2.

[0047] like Figure 2 As shown, the upper cover 2 is provided with a power compartment 204, the upper part of the power compartment 204 is provided with an opening, and a power cover 3 is provided, the power cover 3 is snapped to the upper cover 2.

[0048] like Figure 1 As shown, the upper cover 2 is provided with a switch 202 and an indicator light 203, and the switch 202 and the indicator light 203 are electrically connected to the PCB board 205 respectively.

[0049] In one specific embodiment, the gas sensor 602 is a TVOC sensor.

[0050] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present utility model, and these all fall within the protection scope of the present utility model.

Claims

1. A print shop VOCs alarm apparatus, characterized by, Include: The chassis (1) is provided with an upper cover (2), the inner cavity of the upper cover (2) is provided with a PCB board (205), a power supply (4), a buzzer (5) and an induction assembly (6); the power supply (4), the buzzer (5) and the induction assembly (6) are respectively connected with the PCB board (205) electrically; The upper surface of the upper cover (2) is provided with an air inlet grid hole (201) matched with the induction assembly (6), the lower surface of the chassis (1) is provided with an adhesive layer (102), the middle part of the chassis (1) is provided with a fixing hole (103), and the circumferential side wall of the chassis (1) is provided with an air outlet grid hole (101).

2. A print shop VOCs alarm device according to claim 1, wherein, The induction assembly (6) comprises: a mounting plate (601), the mounting plate (601) is provided with a gas sensor (602), the edge of the mounting plate (601) is provided with an exhaust pipe (603), the side wall of the exhaust pipe (603) is a screen structure, the exhaust pipe (603) is fixedly connected with a mounting pipe (604) away from the mounting plate (601), the inner cavity of the mounting pipe (604) is provided with a fan (605), the fan (605) is provided with a filter screen (606) away from the exhaust pipe (603), the outer side wall of the mounting pipe (604) away from the exhaust pipe (603) is provided with a threaded portion (607), the inner cavity of the upper cover (2) is provided with a matching portion threadedly connected with the threaded portion (607), and the position of the matching portion corresponds to the air inlet grid hole (201).

3. A print shop VOCs alarm device according to claim 2, wherein, The gas sensor (602) and the fan (605) are respectively connected with the mounting plate (601) electrically, and the mounting plate (601) is connected with the PCB board (205) electrically.

4. A print shop VOCs alarm device according to claim 3, wherein, The PCB board (205) is provided with a microcontroller, a storage module and a wireless communication module.

5. A print shop VOCs alarm apparatus as defined in claim 1, wherein, The chassis (1) is threadedly connected with the upper cover (2).

6. A print shop VOCs alarm apparatus as defined in claim 1, wherein, The upper cover (2) is provided with a power supply compartment (204), the upper part of the power supply compartment (204) is provided with an opening, and a power supply cover (3) is arranged, and the power supply cover (3) is snap-connected with the upper cover (2).

7. A print shop VOCs alarm apparatus as defined in claim 1, wherein, The upper cover (2) is provided with a switch (202) and an indicator light (203), and the switch (202) and the indicator light (203) are respectively connected with the PCB board (205) electrically.

8. A print shop VOCs alarm apparatus according to claim 2, wherein, The gas sensor (602) is a TVOC sensor.

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