Comprehensive sampling device for ambient air

Abstract

The utility model provides a comprehensive sampling device of ambient air, including sampling host, divider, folding support and be provided on the handle of sampling host, folding support includes bearing base and three folding landing leg, sampling host is equipped on the top of bearing base, the folding landing leg is equipped on the top of bearing base. Each folding supporting leg comprises a first-section connecting rod, a middle connecting rod and a tail-section telescopic rod, and the tops of the three first-section connecting rods are connected to the center of the front section of the bottom of the bearing base and the two sides of the rear section of the bottom of the bearing base correspondingly. The two ends of the middle connecting rod are hinged to the bottom end of the first-section connecting rod and the starting end of the tail-section telescopic rod through hinge mechanisms respectively. And a rotating angle locking mechanism is arranged on each hinging mechanism. The environment air comprehensive sampling device has the advantage of being convenient to transfer among different sampling points in the field.

Description

Technical Field

[0001] This utility model relates to the field of environmental monitoring technology, specifically to an ambient air comprehensive sampling device. Background Technology

[0002] An atmospheric particulate matter integrated sampler is a device used to collect suspended particulate matter (such as PM2.5) in the air. 2.5 PM 10 This precision equipment, designed for the collection of particulate matter (such as SO2, NOx, and TSP) and gaseous pollutants, utilizes multi-stage gas separation technology to collect particles of different sizes onto a filter membrane. It also supports the simultaneous collection of gaseous pollutants (such as SO2, NOx, and TSP). X (VOCs) provide reliable data for air quality assessment and pollution source analysis, and are widely used in environmental monitoring, industrial emission detection and scientific research.

[0003] The atmospheric particulate matter integrated sampler mainly consists of a sampling host and a splitter. When working in the field, a tripod is usually provided for easy equipment setup. After arriving at the sampling location, the tripod needs to be set up and the sampling host is then installed on top of the tripod. However, in the field, sampling usually needs to be carried out at multiple sampling locations. This requires frequent assembly and disassembly of the tripod and sampling host. They also need to be separated during transportation, which is quite troublesome and affects the detection results.

[0004] In order to solve the above problems, people have been seeking an ideal technological solution. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a comprehensive ambient air sampling device that is convenient to transfer between different sampling points in the field.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: An ambient air comprehensive sampling device includes a sampling host, a divider, a folding bracket, and a handle disposed on the sampling host. The folding bracket includes a support base and three folding legs. The sampling host is mounted on the top of the support base. Each folding leg includes a first connecting rod, a middle connecting rod, and a last telescopic rod. The tops of the three first connecting rods are respectively connected to the center of the front section and the two sides of the rear section of the bottom of the support base. The two ends of the middle connecting rod are respectively hinged to the bottom end of the first connecting rod and the beginning end of the last telescopic rod through a hinge mechanism. Each hinge mechanism is provided with a rotation angle locking mechanism. Through the rotation of the hinge mechanism and the locking of the rotation angle locking mechanism, the folding leg can reach a straight state, or a state in which the middle connecting rod is horizontal and the last telescopic rod is vertically upward and surrounds the sampling host.

[0007] Beneficial effects: When working in the field, the three folding legs can be unfolded and the length of each end telescopic rod adjusted to support the sampling host. When transferring, the three folding legs are folded and the three end telescopic rods surround the sampling host, effectively reducing the size of the equipment and making it easier for workers to carry it by the handle. At the same time, in the folded state, the three middle connecting rods are horizontally set up to form a platform, which can be placed directly on the ground for sampling in suitable scenarios, thus expanding the scope of operation.

[0008] Based on the above, the top ends of the three first-section connecting rods converge towards the middle and the bottom ends are inclined outwards, so that the folding bracket forms a triangular structure when in the supported state.

[0009] Beneficial effect: The tripod structure can improve the stability of the support.

[0010] Based on the above, a leg-clamping platform is provided on the bearing base. The edge of the leg-clamping platform extends around the sampling host. Three telescopic rod slots are provided on the edge of the leg-clamping platform to clamp the three end telescopic rods in the vertically upward state.

[0011] Beneficial effect: After the three end telescopic rods are folded up, they can be locked into the telescopic rod slots, making the folded state more stable.

[0012] Based on the above, the bottom of the support base is provided with two horizontal rotating seats, which are located on the rear sides of the bottom of the support base, and each horizontal rotating seat is provided with a rotation angle locking mechanism. Through the rotation of the horizontal rotating seats and the locking of the rotation angle locking mechanism, the two rear folding legs can be in the same plane, or the two folding legs can be tilted towards the two rear corners of the sampling host.

[0013] Beneficial effects: When folding, the two folding legs can be rotated to the same plane, so that the three telescopic rod slots can be opened perpendicular to the sampling host (otherwise the last two telescopic rod slots are at an angle), making it easier for the last telescopic rod to be folded and inserted into the telescopic rod slots, and the folded state is also neater; when supporting, the two folding legs can be rotated to tilt towards the two rear corners of the sampling host, and can still form a tripod structure for support.

[0014] Based on the above, the end telescopic rod includes two sleeves connected together and a locking mechanism for locking the telescopic length. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the ambient air comprehensive sampling device in the unfolded state of the folding bracket in Example 1.

[0016] Figure 2 This is a schematic diagram of the ambient air comprehensive sampling device in the folded state of the folding bracket in Example 1.

[0017] Figure 3 This is a schematic diagram of the structure near the horizontal rotating seat in Embodiment 2.

[0018] Figure 4 This is a top view of the sampling host in Example 2.

[0019] In the diagram: 1. Sampling host; 2. Divider; 3. Folding support leg; 4. Handle; 5. Support base; 6. Hinge mechanism; 31. First connecting rod; 32. Middle connecting rod; 33. Last telescopic rod; 51. Leg clamping platform; 52. Telescopic rod clamp; 53. Horizontal rotating seat. Detailed Implementation

[0020] The technical solution of this utility model will be further described in detail below through specific embodiments. Example 1

[0021] like Figure 1 and Figure 2 As shown, an ambient air comprehensive sampling device includes a sampling host 1, a divider 2, a folding bracket, and a handle 4 disposed on the sampling host 1.

[0022] The folding support includes a support base 5 and three folding legs 3. The sampling host 1 is installed on the top of the support base 5. Each folding leg 3 includes a first connecting rod 31, a middle connecting rod 32 and a last telescopic rod 33. The tops of the three first connecting rods 31 are respectively connected to the center of the front section and the two sides of the rear section of the bottom of the support base 5 (forming a triangular structure). The two ends of the middle connecting rod 32 are respectively hinged to the bottom end of the first connecting rod 31 and the beginning end of the last telescopic rod 33 through a hinge mechanism 6.

[0023] Each of the hinge mechanisms 6 is equipped with a rotation angle locking mechanism. Through the rotation of the hinge mechanism 6 and the locking of the rotation angle locking mechanism, the folding leg 3 can achieve a flat state (e.g., Figure 1 ), to provide support, or to achieve a state where the intermediate connecting rod 32 is horizontal and the end telescopic rod 33 is vertical and surrounds the sampling host 1 (e.g. Figure 2 This enables the folding function.

[0024] To ensure the stability of the support, the top ends of the three first-section connecting rods 31 converge towards the middle and the bottom ends are inclined outward, so that the folding bracket forms a triangular structure when in the supported state.

[0025] To make the folded state more stable, the support base 5 is provided with a leg clamping platform 51. The edge of the leg clamping platform 51 extends around the sampling host 1. The edge of the leg clamping platform 51 has three telescopic rod clamps 52, which are used to clamp the three end telescopic rods 33 in the vertical upward state, and play an auxiliary fixing function.

[0026] The end telescopic rod 33 specifically includes two sleeves connected together and a locking mechanism for locking the telescopic length; wherein, the locking mechanism can adopt the locking structure commonly used in existing telescopic rods, such as a tapered thread friction lock, which uses the cooperation of inner and outer tapered threads to generate radial pressure to achieve self-locking.

[0027] When working in the field, after arriving at the sampling point, the three folding legs 3 are unfolded, and the hinge mechanism 6 is locked using the rotation angle locking mechanism. The length of each end telescopic rod 33 is adjusted to achieve stable support for the sampling host 1. When it is necessary to move to other sampling points, the three folding legs 3 are folded, and the hinge mechanism 6 is locked using the rotation angle locking mechanism. The three end telescopic rods 33 surround the sampling host 1, greatly reducing the size of the equipment and making it convenient for workers to carry it by the handle 4. At the same time, in the folded state, the three intermediate connecting rods 32 are horizontally set up, forming a platform. In suitable scenarios, it can be placed directly on the ground for sampling, expanding the scope of operation. Example 2

[0028] like Figure 3 and Figure 4 As shown, the difference between this embodiment and Embodiment 1 is that the bottom of the bearing base 5 is provided with two horizontal rotating seats 53. The two horizontal rotating seats 53 are respectively located on both sides of the rear section of the bottom of the bearing base 5, and each horizontal rotating seat 53 is provided with a rotation angle locking mechanism. Each rotation angle locking mechanism can adopt a locking mechanism commonly used in existing rotary joints, such as a steel ball spring lock, which consists of a spring mechanism, a steel ball connected to the spring mechanism, and a matching positioning hole. The spring mechanism and the positioning hole are respectively set on two bases that rotate relative to each other. When the steel ball is aligned with the positioning hole, it pops out and locks the positioning hole to achieve position locking. When unlocking is required, the steel ball is pressed to make it sink into the positioning hole, and the two can then rotate relative to each other.

[0029] By rotating the horizontal rotating seat 53 and locking the rotation angle locking mechanism, the two rear folding legs 3 can be in the same plane or tilted towards the two rear corners of the sampling host 1.

[0030] When folding, the two folding legs 3 can be rotated to the same plane, so that the three telescopic rod slots 52 can be opened perpendicular to the sampling host 1 (otherwise the last two telescopic rod slots are at an angle), making it easier for the last telescopic rod 33 to be folded and inserted into the telescopic rod slots 52, and the folded state is also neater; when supporting, the two folding legs 3 can be rotated to tilt towards the two rear corners of the sampling host 1, and can still form a tripod structure for support.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. An ambient air comprehensive sampling device, comprising a sampling host and a divider, characterized in that: It also includes a folding bracket and a handle on the sampling host. The folding bracket includes a support base and three folding legs. The sampling host is mounted on top of the support base. Each folding leg includes a first connecting rod, a middle connecting rod, and a last telescopic rod. The tops of the three first connecting rods are respectively connected to the center of the front section and the two sides of the rear section of the bottom of the support base. The two ends of the middle connecting rod are respectively hinged to the bottom end of the first connecting rod and the beginning end of the last telescopic rod through a hinge mechanism. Each hinge mechanism is provided with a rotation angle locking mechanism. Through the rotation of the hinge mechanism and the locking of the rotation angle locking mechanism, the folding leg can reach a straight state, or a state in which the middle connecting rod is horizontal and the last telescopic rod is vertically upward and surrounds the sampling host.

2. The ambient air integrated sampling device according to claim 1, characterized in that: The tops of the three first-section connecting rods converge towards the middle and the bottoms are inclined outwards, so that the folding bracket forms a triangular structure when in the supported state.

3. The ambient air integrated sampling device according to claim 2, characterized in that: The support base is provided with a leg clamping platform, the edge of which extends around the sampling host. The edge of the leg clamping platform has three telescopic rod clamps for clamping the three end telescopic rods in the vertically upward state.

4. The ambient air integrated sampling device according to claim 3, characterized in that: The bottom of the support base is provided with two horizontal rotating seats, which are located on the rear sides of the bottom of the support base respectively. Each horizontal rotating seat is provided with a rotation angle locking mechanism. By rotating the horizontal rotating seats and locking the rotation angle locking mechanism, the two rear folding legs can be in the same plane or tilted towards the two rear corners of the sampling host.

5. The ambient air integrated sampling device according to any one of claims 1-4, characterized in that: The end telescopic rod includes two sleeves connected together and a locking mechanism for locking the telescopic length.

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