An air quality sensor with water resistance

Abstract

The utility model relates to air quality detection equipment technical field, concretely relates to an air quality sensor with waterproofness, and the sensor includes bottom shell, air detection chip and sealing washer. Still include waterproof cover opening and closing mechanism, briquetting and pressure locking assembly. The air -proofing waterproof cover of waterproof cover opening and closing mechanism is connected in bottom shell through the rotation block rotation, and is pressed tightly matched with sealing washer when closing. Pressure locking assembly sets up on the air -proofing waterproof cover, includes the sliding column of vertical fixation, the spring one of cover, the top cap of sliding sleeve joint and the lock board rotationally connected in the top cap. The utility model provides stable even pressure through pressure locking assembly, has solved the problem that sealing is unreliable, waterproof performance is poor among the prior art, has effectively protected internal chip, simple structure is reliable, has improved product life and stability under the humid severe environment significantly.

Description

Technical Field

[0001] This utility model relates to the field of air quality detection equipment technology, and in particular to an air quality sensor with waterproof properties. Background Technology

[0002] With increasing public awareness of the quality of their living environment, air quality sensors are widely used in various scenarios, including homes, office buildings, public places, and outdoor environmental monitoring stations. These sensors integrate sophisticated air detection chips to monitor the concentration of pollutants such as particulate matter and harmful gases in the air in real time.

[0003] In practical applications, air quality sensors are inevitably deployed in various complex environments, such as damp bathrooms, kitchens filled with cooking fumes, and even semi-outdoor or outdoor environments that may be exposed to rain. The moisture, water vapor, and even liquid water droplets in these environments pose a serious threat to the internal air detection chip and electronic circuitry. Once they penetrate the device, they can easily cause problems such as short circuits and component corrosion, ultimately leading to inaccurate sensor measurements or even complete failure.

[0004] To address the waterproofing issue, some existing sensors typically employ simple housing structures for protection. However, since air quality sensors require airflow from the external environment to function effectively, their housings must include air vents, creating a significant contradiction in waterproofing design. Existing waterproofing measures often struggle to provide reliable sealing while ensuring breathability. Some sensors utilize waterproof caps secured with simple clips or screws, resulting in uneven and unstable pressure on the seal. Over prolonged use, or when subjected to temperature changes or vibrations, gaps can easily appear in the seal, significantly reducing waterproofing performance.

[0005] Therefore, there is an urgent need for a structure that can provide reliable and durable sealing protection for core detection chips in harsh environments without affecting their normal installation and maintenance. Existing waterproof structures are significantly inadequate in providing stable and uniform locking pressure, making it difficult to guarantee their long-term waterproof reliability.

[0006] Therefore, this invention proposes a waterproof air quality sensor to address the shortcomings of existing technologies. Utility Model Content

[0007] The purpose of this invention is to provide a waterproof air quality sensor, which solves the problem that some existing air quality sensors have unreliable sealing structures for the core detection chip in humid environments, resulting in uneven and unstable pressure and poor long-term waterproof performance.

[0008] This utility model provides a waterproof air quality sensor, including a base shell, an air detection chip disposed inside the base shell, and a sealing gasket fixedly connected to the base shell and surrounding the air detection chip; as well as a waterproof cover opening and closing mechanism, a pressure block, and a pressure locking assembly.

[0009] The waterproof cover opening and closing mechanism includes a rotating block, a connecting block, and a breathable waterproof cover that are fixedly connected to the bottom shell; the pressure locking assembly is located on the top of the bottom shell and includes a vertically fixed sliding column, a spring sleeved on the outside of the sliding column, a top cap that is slidably sleeved on the top of the sliding column, and a locking plate that is rotatably connected to the top cap.

[0010] The breathable and waterproof cover is rotatably connected to the connecting block and the rotating block, which can open and close to cover the air detection chip and press tightly against the sealing gasket; the pressure block is fixedly connected to the breathable and waterproof cover, and the locking plate can be rotatably engaged with the pressure block. In the engaged state, the spring applies pressure to the pressure block through the top cap and the locking plate, so that the breathable and waterproof cover fits tightly against the sealing gasket.

[0011] Preferably, a waterproof air quality sensor further includes a vent housing, which is detachably mounted on the base and covers the exterior of the waterproof cover opening and closing mechanism and the pressure locking assembly, providing protection for the internal components.

[0012] Preferably, an air quality sensor with waterproof properties also includes a mounting mechanism for detachably fixing the base to a mounting surface such as a wall.

[0013] Preferably, the mounting mechanism includes a mounting plate for fixing to the mounting surface, and a rounded corner locking block integrally formed on the outer wall of the bottom shell and engaging with the mounting plate.

[0014] Preferably, the mounting plate is also fixed with positioning posts, and the bottom shell is provided with positioning holes that are compatible with the positioning posts, which are used to assist in alignment during installation.

[0015] Preferably, a slide rail column is fixed on the mounting plate; the mounting mechanism also includes a sliding block slidably connected to the slide rail column, and a second spring, which provides elastic force to drive the sliding block to reset and engage with the rounded corner block.

[0016] Preferably, the second spring is disposed in a compressed state between the sliding block and the inner wall of the mounting plate, continuously providing the sliding block with a pushing force toward the rounded corner block.

[0017] Preferably, the rounded corner block has symmetrical guide bevels on the top and bottom, which are used to push the sliding block to slide along the slide rail column against the elastic force of the second spring when the bottom shell is pressed and installed or pulled outward.

[0018] This utility model discloses a waterproof air quality sensor. 1. This utility model solves the problem that the detection chip of the air quality sensor is easily damaged in humid environments due to the lack of reliable sealing protection by setting an openable and closable breathable and waterproof cover and using a pressure locking assembly consisting of a locking plate, spring and pressure block to lock it. It achieves the technical effect of effectively waterproof sealing the internal air detection chip. The continuous pressure provided by the pressure locking assembly ensures the long-term reliability of the seal and significantly improves the stability and service life of the product in harsh environments.

[0019] 2. This utility model, by designing an installation mechanism consisting of a mounting plate and rounded corner blocks on the bottom shell, utilizes the elastic locking mechanism of sliding blocks and springs to solve the problems of cumbersome sensor installation and fixing process and inconvenient disassembly and maintenance in the prior art. It achieves the technical effect of enabling users to quickly and tool-free complete sensor installation and disassembly, making the operation simple and fast, and greatly improving the convenience of use and maintenance for users.

[0020] 3. This utility model, by integrating a waterproof locking mechanism and a quick-installation mechanism into the overall structure and adding a vented outer shell, solves the problem of existing products having limited functionality and failing to effectively combine environmental protection with ease of operation. It achieves the technical effect of making the sensor structure compact and having comprehensive functions. The vented outer shell provides additional physical protection for the internal precision waterproof locking components without affecting air circulation, preventing them from being damaged by external impacts and enhancing the overall reliability of the product. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0022] Figure 1 This is a three-dimensional schematic diagram of a waterproof air quality sensor proposed in this utility model; Figure 2 This is a schematic diagram of the bottom shell of a waterproof air quality sensor proposed in this utility model; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0023] In the picture: 1. Bottom shell; 2. Ventilation-perforated outer shell; 3. Waterproof cover opening and closing mechanism; 31. Rotating block; 32. Connecting block; 33. Sealing gasket; 34. Breathable waterproof cover; 35. Pressing block; 36. Pressure locking assembly; 361. Locking plate; 362. Spring 1; 363. Sliding column; 364. Top cap; 4. Installation mechanism; 41. Mounting plate; 42. Positioning post; 43. Slide rail post; 44. Spring 2; 45. Sliding block; 46. Rounded corner locking block; 5. Air detection chip. Detailed Implementation

[0024] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention. Example:

[0025] Reference Figures 1 to 4 This utility model provides a waterproof air quality sensor, which aims to solve the problems of imperfect waterproof sealing structure of the detection chip and cumbersome overall installation and fixing structure of existing air quality sensors in humid environments.

[0026] like Figure 1 and Figure 2 As shown, it includes a bottom shell 1 and an air detection chip 5 disposed inside the bottom shell 1. A sealing gasket 33 surrounding the air detection chip 5 is fixedly connected to the bottom shell 1. The sensor also includes a waterproof cover opening and closing mechanism 3, a pressure block 35 and a pressure locking assembly 36. Specifically, the waterproof cover opening and closing mechanism 3 includes a rotating block 31 fixedly connected to the bottom shell 1, a connecting block 32 and a breathable waterproof cover 34. One end of the connecting block 32 is rotatably connected to the rotating block 31, and the other end is fixedly connected to the breathable waterproof cover 34. The breathable waterproof cover 34 achieves opening and closing action through the cooperation of the rotating block 31 and the connecting block 32 to cover or expose the air detection chip 5. In the closed state, the breathable waterproof cover 34 is pressed tightly with the sealing gasket 33 to form a seal. The pressure block 35 is fixedly connected to the bottom shell 1, and the position of the pressure block 35 is set within the closed path range of the breathable and waterproof cover 34 for cooperation with the pressure locking assembly 36. The pressure locking assembly 36 is disposed on the outer surface of the breathable and waterproof cover 34. The pressure locking assembly 36 includes a sliding post 363 vertically fixed on the breathable and waterproof cover 34, a spring 362 sleeved on the outside of the sliding post 363, a top cap 364 slidably sleeved on the top of the sliding post 363, and a locking plate 361 rotatably connected to the top cap 364. The locking plate 361 achieves engagement or disengagement with the pressure block 35 by rotation. When the locking plate 361 rotates to the state of engagement with the pressure block 35, the spring 362 applies continuous pressure to the pressure block 35 through the top cap 364 and the locking plate 361. This pressure is finally transmitted to the breathable and waterproof cover 34, thereby driving the breathable and waterproof cover 34 to tightly fit the sealing gasket 33.

[0027] like Figure 1 , Figure 2 As shown, the vent housing 2 is detachably mounted on the bottom housing 1 and covers the outside of the waterproof cover opening and closing mechanism 3 and the pressure locking assembly 36. The vent housing 2 has multiple strip-shaped through holes to provide additional protection without affecting air circulation. The vent housing 2 protects the internal waterproof cover opening and closing mechanism 3 and the pressure locking assembly 36 from direct mechanical impact. The mounting mechanism 4 is used to detachably fix the bottom shell 1 to the wall or other mounting surface. The mounting mechanism 4 includes a mounting plate 41, a positioning column 42, a slide rail column 43, a spring 44, a sliding block 45, and a rounded corner block 46. Specifically, the mounting plate 41 is used to fix to the mounting surface by means of adhesive or screws. The mounting plate 41 is fixed with positioning pins 42 and slide rail pins 43. The bottom shell 1 is provided with positioning holes that are adapted to the positioning pins 42. The positioning pins 42 are used to provide auxiliary alignment when the bottom shell 1 is installed to prevent the bottom shell 1 from deviating. The sliding block 45 is slidably connected to the slide rail pins 43. The second spring 44 is in a compressed state and is set between the sliding block 45 and the inner wall of the mounting plate 41, continuously providing the sliding block 45 with a pushing force toward the bottom shell 1. The rounded corner block 46 is integrally formed on the outer wall of the bottom shell 1 and engages with the sliding block 45 when the bottom shell 1 is pushed into the mounting plate 41. It also includes a vent housing 2, which is detachably mounted on the bottom shell 1 and covers the outside of the waterproof cover opening and closing mechanism 3 and the pressure locking assembly 36, providing further physical protection for the internal waterproof structure.

[0028] The system includes an installation mechanism 4, which includes an installation plate 41 for fixing to a wall or other installation surface, and a structure located on the bottom shell 1 that engages with the installation plate 41. The installation plate 41 is fixed with a positioning post 42 and a slide rail post 43. A rounded corner block 46 is integrally formed on the outer wall of the bottom shell 1. The bottom shell 1 is also provided with a positioning hole that matches the positioning post 42. The installation mechanism 4 also includes a sliding block 45 and a second spring 44. The sliding block 45 is slidably connected to the slide rail post 43. The second spring 44 is in a compressed state and is disposed between the sliding block 45 and the inner wall of the installation plate 41. The rounded corner block 46 has symmetrical upper and lower guide bevels for contacting the end of the sliding block 45.

[0029] The implementation principle of this application embodiment is as follows: When it is necessary to waterproof the air detection chip 5 or replace it, the breathable waterproof cover 34 is operated to drive the connecting block 32 to rotate around the rotating block 31 to the closed position. The edge of the breathable waterproof cover 34 is embedded in the sealing gasket 33. Then, the locking plate 361 of the pressure locking assembly 36 is rotated from a state parallel to the pressure block 35 to a vertical state, so that after the locking plate 361 passes through the pressure block 35, its two ends can be locked on the top of the pressure block 35. At this time, the spring 362 sleeved on the sliding column 363 will continuously provide a pushing force to the locking plate 361 through the top cap 364. This pushing force acts on the breathable waterproof cover 34 through the pressure block 35, so that it can fit more tightly with the sealing gasket 33.

[0030] When the sensor needs to be installed, first fix the mounting plate 41 to the wall by adhesive or screws. Then, press the bottom shell 1 against the positioning post 42 on the mounting plate 41. During the pressing process, the guide bevel at the top of the rounded corner block 46 on the bottom shell 1 will push the sliding block 45 on the mounting plate 41, so that the sliding block 45 slides along the slide rail post 43 and squeezes the second spring 44. When the rounded corner block 46 is fully inserted into the preset space inside the bottom shell 1, the rebound force of the second spring 44 will push the sliding block 45 to reset, thereby locking the rounded corner block 46 to fix the bottom shell 1. When it needs to be removed, pull the bottom shell 1 outward. The guide bevel at the bottom of the rounded corner block 46 will push the sliding block 45 to slide in the same way, thereby unlocking and separating.

Claims

1. A waterproof air quality sensor, comprising a base housing and an air detection chip disposed within the base housing, wherein a sealing gasket surrounding the air detection chip is fixedly connected to the base housing; Its features are, The sensor further includes: a waterproof cover opening and closing mechanism, comprising a rotating block fixedly connected to the bottom shell, and a breathable waterproof cover rotatably connected to the rotating block via a connecting block. The breathable waterproof cover can be opened and closed to cover the air detection chip and is pressed tightly against the sealing gasket in the closed state. A pressure block is fixedly connected to the breathable waterproof cover. A pressure locking assembly is disposed on the top of the bottom shell and includes a vertically fixed sliding column, a spring sleeved on the outside of the sliding column, a top cap slidably sleeved on the top of the sliding column, and a locking plate rotatably connected to the top cap. The locking plate can be rotatably engaged or disengaged from the pressure block. In the engaged state, the spring applies pressure to the pressure block through the top cap and the locking plate, thereby causing the breathable waterproof cover to tightly fit against the sealing gasket.

2. The waterproof air quality sensor according to claim 1, characterized in that, The sensor also includes a vent housing that is detachably mounted on the bottom shell and covers the exterior of the waterproof cover opening and closing mechanism and the pressure locking assembly, providing protection for the internal components.

3. The waterproof air quality sensor according to claim 1, characterized in that, The sensor also includes a mounting mechanism for detachably fixing the base shell to a wall mounting surface.

4. The waterproof air quality sensor according to claim 3, characterized in that, The mounting mechanism includes a mounting plate for fixing to the mounting surface, and a rounded corner locking block integrally formed on the outer wall of the bottom shell and engaging with the mounting plate.

5. The waterproof air quality sensor according to claim 4, characterized in that, The mounting plate is also fixed with positioning posts, and the bottom shell is provided with positioning holes that are adapted to the positioning posts, which are used to assist in alignment during installation and prevent the bottom shell from deviating.

6. The waterproof air quality sensor according to claim 4, characterized in that, The mounting plate is fixed with a slide rail column, and the mounting mechanism also includes a sliding block slidably connected to the slide rail column, and a second spring. The second spring is used to provide elastic force to drive the sliding block to reset and lock the rounded corner block.

7. The waterproof air quality sensor according to claim 6, characterized in that, The second spring is in a compressed state and is disposed between the sliding block and the inner wall of the mounting plate, continuously providing the sliding block with a pushing force toward the rounded corner block.

8. The waterproof air quality sensor according to claim 6, characterized in that, The rounded corner block has symmetrical guide bevels on the top and bottom, which are used to push the sliding block to overcome the elastic force of the second spring and slide along the slide rail column when the bottom shell is pressed and installed or pulled outward, so as to lock or unlock.

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