An indoor air quality detection and sampling intake structure

Abstract

This utility model provides an indoor air quality detection sampling and intake structure, effectively solving the problem that existing technologies can only sample from a single point, severely interfering with the detection results. The solution includes a housing with multiple sampling groups. Each sampling group includes a central tube, which is perpendicular to and fixed to the housing surface. Around the central tube are multiple movable tubes, hinged to the sidewalls of the housing. A sliding cylinder is mounted on the central tube, with a spring installed between the cylinder and the housing. A nut is located on the side of the cylinder away from the housing, threadedly connected to the central tube. Multiple connecting rods are hinged around the cylinder, with the ends of the connecting rods away from the cylinder hinged to the movable tubes. When the cylinder slides along the central tube, the multiple connecting rods cause the multiple movable tubes to spread out or converge, forming an umbrella-like structure.

Description

Technical Field

[0001] This utility model relates to the field of air quality monitoring technology, and in particular to an indoor air quality detection and sampling intake structure. Background Technology

[0002] Currently, indoor air quality monitoring instruments use small-diameter sampling tubes with limited suction areas, resulting in inaccurate environmental monitoring and an inability to target air quality at different heights within a room, thus limiting their application. In response, patent CN217586538U provides a dust hood for environmental monitoring, aiming to expand the air sampling range. While this solution utilizes a large dust hood, it still only samples air from the bottom of the hood, essentially remaining a single-point sample. Consequently, the accuracy of the test results is not significantly improved, and the claimed goal of expanding the sampling range is not achieved.

[0003] To address this issue, an indoor air quality detection and sampling intake structure is provided. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides an indoor air quality detection sampling and intake structure, which effectively solves the problem that the prior art can only sample at a single point when sampling indoor air, which seriously interferes with the detection results.

[0005] The technical solution includes a shell with multiple sampling groups. Each sampling group includes a central tube, which is perpendicular to and fixed to the shell surface. Around the central tube are multiple movable tubes, which are hinged to the sidewalls of the shell. The central tube has a sliding cylinder that can slide along it. A spring is installed between the sliding cylinder and the shell. A nut is located on the side of the sliding cylinder away from the shell, and the nut is threaded to the central tube. Multiple connecting rods are hinged around the sliding cylinder, and the ends of the connecting rods away from the sliding cylinder are hinged to the movable tubes. When the sliding cylinder slides along the central tube, it drives the multiple movable tubes to spread out or converge through the multiple connecting rods, forming an umbrella-like structure.

[0006] Furthermore, the movable tube near the shell and the shell are both provided with arc-shaped structures, and the two arc-shaped structures are interlocked and hinged together.

[0007] Furthermore, the number of sampling groups is two, and the two sampling groups are arranged symmetrically from left to right.

[0008] This invention has a clever structure that enables simultaneous sampling from multiple points, significantly improving the accuracy of the sampling results. Moreover, the sampling range and sampling points can be adjusted in real time according to the site conditions, making it highly applicable and practical. Attached Figure Description

[0009] Figure 1 This is a perspective view of the present utility model.

[0010] Figure 2 This is the front view of the present utility model.

[0011] Figure 3 This is a side view of the present invention.

[0012] Figure 4 This is a diagram showing the usage state of this utility model. Detailed Implementation

[0013] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0014] Depend on Figures 1 to 4 The present invention includes a housing 1, on which multiple sampling groups are mounted. Each sampling group includes a central tube 2, which is perpendicular to and fixed to the surface of the housing 1. Multiple movable tubes 3 are mounted around the central tube 2, and the movable tubes 3 are hinged to the side wall of the housing 1. A sliding cylinder 4 is mounted on the central tube 2, and a spring is installed between the sliding cylinder 4 and the housing 1. A nut 5 is mounted on the side of the sliding cylinder 4 away from the housing 1, and the nut 5 is threadedly connected to the central tube 2. Multiple connecting rods 6 are hinged around the sliding cylinder 4, and the end of the connecting rod 6 away from the sliding cylinder 4 is hinged to the movable tube 3. When the sliding cylinder 4 slides along the central tube 2, the multiple movable tubes 3 are dispersed or converged by the multiple connecting rods 6 on it, forming an umbrella-shaped structure.

[0015] In order to install the movable tube 3, the movable tube 3 is provided with an arc-shaped structure at one end near the housing 1 and on the housing 1. The two arc-shaped structures are interlocked and hinged together.

[0016] To make it more convenient to use and suitable for various small spaces, the number of sampling groups is two, and the two sampling groups are arranged symmetrically from left to right.

[0017] It is worth noting that the lower end of the housing 1 is connected to the air intake device in the sampling equipment; a sealing ring is provided at the hinge of the movable tube 3 and the housing 1 to ensure that the two are always in a sealed state.

[0018] When using, such as Figures 1 to 3 As shown, the suction device draws air from the housing 1, creating a negative pressure inside the housing 1. External gas enters the housing 1 evenly through each active tube 3 and the central tube 2, and then enters the suction device in the sampling equipment, achieving large-scale uniform sampling.

[0019] By tightening the nut 5, the position of the slide 4 on the central tube 2 can be controlled, thereby controlling the far ends of each movable tube 3 to move closer together or spread out, so as to achieve sampling in different ranges.

[0020] like Figure 3 As shown, when the space is long and narrow, turning the nut 5 causes it to move to both sides, and the slide cylinder 4 moves to both sides under the action of the spring until the various movable tubes 3 in the same sampling group are close to each other, so as to adapt to the sampling of air in the narrow space.

[0021] This invention has a clever structure that enables simultaneous sampling from multiple points, significantly improving the accuracy of the sampling results. Moreover, the sampling range and sampling points can be adjusted in real time according to the site conditions, making it highly applicable and practical.

Claims

1. An indoor air quality detection and sampling intake structure, characterized in that, The system includes a housing (1) with multiple sampling groups. Each sampling group includes a central tube (2) which is perpendicular to the surface of the housing (1) and fixed in place. The central tube (2) has multiple movable tubes (3) around it. The movable tubes (3) are hinged to the side wall of the housing (1). The central tube (2) has a sliding cylinder (4) that can slide along it. A spring is installed between the sliding cylinder (4) and the housing (1). The side of the sliding cylinder (4) away from the housing (1) has a nut (5). The nut (5) is threaded to the central tube (2). Multiple connecting rods (6) are hinged around the sliding cylinder (4). The end of the connecting rod (6) away from the sliding cylinder (4) is hinged to the movable tube (3). When the sliding cylinder (4) slides along the central tube (2), the sliding cylinder (4) drives the multiple movable tubes (3) to spread out or gather together through the multiple connecting rods (6) on it, forming an umbrella-shaped structure.

2. The indoor air quality detection sampling and intake structure according to claim 1, characterized in that, The active tube (3) near the end of the shell (1) and the shell (1) are both provided with arc-shaped structures, and the two arc-shaped structures are interlocked and hinged together.

3. The indoor air quality detection sampling and intake structure according to claim 1, characterized in that, The number of sampling groups is two, and the two sampling groups are arranged symmetrically from left to right.

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