A multi-point sampling device for environmental detection

Abstract

The utility model discloses a multi-point sampling device for environmental detection, including a frame, a sliding rod is slidably installed inside the frame, and a distance module is installed on the rear side of the frame, the distance module is used to drive the sliding rod to move at a fixed distance, and a plurality of sampling modules are sleeved on the outer side of the sliding rod; a limit rod is fixed at the lower front end of the frame, and a two-way threaded rod is rotatably installed inside the limit rod, and movable blocks are threadedly sleeved on the outer sides of both ends of the two-way threaded rod, a telescopic frame is movably arranged in the middle of the frame, and two movable blocks are respectively rotatably installed on the left and right ends of the lower side of the telescopic frame, and guide blocks are rotatably installed on the left and right ends above the telescopic frame. The multi-point sampling device for environmental detection drives the sliding rod to move at a fixed distance inside the sampling tube through the distance module to realize quantitative extraction, and the height of the sampling tube can be adjusted according to actual needs.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental detection, in particular to an environmental detection multi-point sampling device. Background Art

[0002] As environmental pollution becomes increasingly serious, environmental protection has become a common concern of the world. It is urgent to protect the environment on which people depend for survival and to carry out in-depth environmental protection work. Environmental monitoring is an important task in environmental protection, including atmospheric monitoring. Sampling is the first step in determining pollutants in the atmosphere, which is directly related to the credibility of the analysis results.

[0003] In the patent application with the authorization publication number CN216207902U and the authorization publication date 2022-04-05, and the name of "Environmental Detection Multi-point Sampling Device", the multi-point sampling device for environmental detection is provided with the arrangement of support rods, gears, rack rods, convex blocks, matching blocks, positioning rings, round rods, round blocks, sealing rings, one-way air inlet valves and one-way air outlet valves, so that the multi-point sampling device for environmental detection has the effect of conveniently realizing multi-point sampling. During use, the meshing of the gears and the rack rods drives the round blocks to move and suck the external gas into the cylinder through the one-way air inlet valve, thereby facilitating the realization of multi-point sampling and achieving the purpose of improving the accuracy of sampling detection;

[0004] In actual use of the above device, a cylinder is used to sample the gas. However, the cylinder is fixed, which makes it inconvenient to adjust the height according to actual conditions, thereby failing to perform multi-point sampling of gas at different heights. The practicability is low, and it is inconvenient to quantitatively extract air as needed.

[0005] Therefore, we propose a multi-point sampling device for environmental detection in order to solve the problems raised above. Utility Model Content

[0006] 1. Technical problems to be solved by the utility model:

[0007] The purpose of the utility model is to provide an environment detection multi-point sampling device to solve the problems in the current market raised by the above background technology.

[0008] 2. Technical solution:

[0009] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an environmental detection multi-point sampling device, comprising a frame, a sliding rod is slidably installed inside the frame, and a distance module is installed on the rear side of the frame, the distance module is used to drive the sliding rod to move at a fixed distance, and a plurality of sampling modules are sleeved on the outer side of the sliding rod;

[0010] A limiting rod is fixed to the lower front end of the frame body, and a two-way threaded rod is rotatably installed inside the limiting rod, and movable blocks are threadedly sleeved on the outer sides of both ends of the two-way threaded rod, and a telescopic frame is movably provided at the middle part of the frame body, and two movable blocks are rotatably installed at the left and right ends of the lower side of the telescopic frame respectively, and guide blocks are rotatably installed at the left and right ends above the telescopic frame, and the guide blocks are slidably installed inside the guide rail.

[0011] Furthermore, the distance module includes a rotating rod and an active dial with bearings installed on the rear side of the frame, and the middle and lower outer sides of the rotating rod are respectively fixed with gears and driven sheaves, and the driven sheaves and the active dial constitute a sheave structure.

[0012] Through the above technical solution, after the active dial is rotated, the driven groove wheel and the gear can be driven to rotate intermittently.

[0013] Furthermore, a side portion of the gear is meshedly connected with a rack, and the rack is fixed on the outer side of the slide rod.

[0014] Through the above technical solution, when the gear rotates intermittently, the gear can be driven to move at a fixed distance by meshing with the rack.

[0015] Furthermore, the upper end of the active dial and the left end of the bidirectional threaded rod are both connected with a handle, and the movable block and the guide block threadedly sleeved on the outer side of the bidirectional threaded rod are respectively fitted and slid inside the limit rod and the guide rail.

[0016] Through the above technical solution, after the bidirectional threaded rod is rotated, the movable block can be driven to move relatively.

[0017] Furthermore, the sampling module is composed of a piston rod and a sampling cylinder, and the front end of the piston rod is slidably installed inside the sampling cylinder, and the rear end of the piston rod is sleeved on the outside of the sliding rod, and the rear end of the sampling cylinder is fixedly connected to the middle front end of the guide rail, and the front end of the sampling cylinder is equipped with an air inlet and an air outlet through a one-way valve.

[0018] Through the above technical solution, the air can be sampled when the sliding rod slides inside the sampling tube.

[0019] Furthermore, the guide rails are distributed above the limiting rod at equal intervals.

[0020] Through the above technical solution, air at different heights can be sampled simultaneously.

[0021] 3. Beneficial effects:

[0022] Compared with the prior art, the present invention adopts the technical solution provided by the utility model. The utility model multi-point sampling device for environmental detection drives the sliding rod to move at a fixed distance inside the sampling tube through the fixed distance module to achieve quantitative extraction, and the height of the sampling tube can be adjusted according to actual needs. The specific contents are as follows:

[0023] (1) After placing the frame at the point to be measured, turn the active dial, which drives the driven groove wheel to rotate intermittently through the groove wheel mechanism between the active dial and the driven groove wheel. Since the driven groove wheel, the gear and the rotating rod are an integrated structure, the gear can rotate with the rotation of the driven groove wheel. Since the gear and the rack are meshed with each other, the rack can be driven to move a fixed distance. Since the rack is fixed on the sliding rod, the sliding rod can drive the piston rod to move a fixed distance inside the sampling cylinder, so that air can be quantitatively extracted into the sampling cylinder.

[0024] (2) When the height of the sampling tube needs to be adjusted according to actual needs, the bidirectional threaded rod is rotated, and the two movable blocks threadedly mounted on the outer side of the bidirectional threaded rod can move relative to each other inside the limit rod by virtue of the fit with the limit rod, thereby driving the telescopic frame to extend and retract. During the extension and retraction process, the telescopic frame drives the guide block to slide inside the guide rail, thereby driving the guide rail to move up and down, and the sampling tube fixedly mounted on the guide rail can move up and down accordingly to achieve height adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall side-view stereoscopic structure of the utility model;

[0026] Figure 2 This is a schematic diagram of the three-dimensional structure of the frame of the utility model from a side view;

[0027] Figure 3 This is a schematic diagram of the three-dimensional structure of the sliding rod of the utility model from a side view;

[0028] Figure 4 This is a schematic diagram of the three-dimensional structure of the guide rail of the utility model from a side view;

[0029] Figure 5 It is a schematic diagram of the three-dimensional structure of the telescopic frame of the utility model from a side view.

[0030] In the figure: 1. frame; 2. distance module; 21. rotating rod; 22. active dial; 23. driven groove wheel; 24. gear; 3. sliding rod; 31. rack; 4. sampling module; 41. piston rod; 42. sampling tube; 5. guide rail; 6. telescopic frame; 7. guide block; 8. movable block; 9. limit rod; 10. bidirectional threaded rod. DETAILED DESCRIPTION

[0031] In order to facilitate the understanding of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "provided with", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0035] See also Figure 1-5 A multi-point sampling device for environmental detection includes a frame 1, a slide bar 3 is slidably installed inside the frame 1, and a distance module 2 is installed on the rear side of the frame 1, the distance module 2 is used to drive the slide bar 3 to move at a fixed distance, and a plurality of sampling modules 4 are sleeved on the outer side of the slide bar 3; the distance module 2 includes a rotating rod 21 and an active dial 22 installed on the rear side of the frame 1 with a bearing, a gear 24 and a driven groove wheel 23 are fixedly sleeved on the middle part and the outer side of the lower end of the rotating rod 21, and the driven groove wheel 23 and the active dial 22 constitute a groove wheel structure; the side of the gear 24 is meshed and connected with a rack 31, and the rack 31 is fixed on the outer side of the slide bar 3;

[0036] Combination Figure 1-3 As shown, the frame 1 is placed at the point to be measured, and the active dial 22 is rotated. The active dial 22 drives the driven groove wheel 23 to rotate intermittently through the groove wheel mechanism between the active dial 22 and the driven groove wheel 23. Since the driven groove wheel 23, the gear 24 and the rotating rod 21 are an integrated structure, the gear 24 can rotate with the rotation of the driven groove wheel 23. Since the gear 24 and the rack 31 are meshed with each other, when the gear 24 rotates intermittently, it can drive the rack 31 to move a fixed distance. Since the rack 31 is fixed on the slide bar 3, the slide bar 3 can drive the piston rod 41 to move a fixed distance inside the sampling tube 42, and then the air can be quantitatively extracted into the sampling tube 42.

[0037] A limit rod 9 is fixed at the lower front end of the frame body 1, and a two-way threaded rod 10 is rotatably installed inside the limit rod 9, and movable blocks 8 are threadedly sleeved on the outer sides of both ends of the two-way threaded rod 10. A telescopic frame 6 is movably arranged in the middle of the frame body 1, and two movable blocks 8 are rotatably installed on the left and right ends of the lower side of the telescopic frame 6, and guide blocks 7 are rotatably installed on the left and right ends above the telescopic frame 6, and the guide blocks 7 are slidably installed inside the guide rail 5; the upper end of the active dial 22 and the left end of the two-way threaded rod 10 are connected with a handle, and The movable block 8 and the guide block 7 which are threadedly sleeved on the outer side of the bidirectional threaded rod 10 are respectively fitted and slid inside the limit rod 9 and the guide rail 5; the sampling module 4 is composed of a piston rod 41 and a sampling cylinder 42, and the front end of the piston rod 41 is fitted and slidably installed inside the sampling cylinder 42, and the rear end of the piston rod 41 is sleeved on the outer side of the slide rod 3, and the rear end of the sampling cylinder 42 is fixedly connected to the middle front end of the guide rail 5, and the front end of the sampling cylinder 42 is installed with an air inlet and an air outlet through a one-way valve; the guide rails 5 are evenly spaced above the limit rod 9;

[0038] Combination Figure 1 and Figure 3-5 As shown, when the height of the sampling tube 42 needs to be adjusted according to actual needs, the bidirectional threaded rod 10 is rotated, and the two movable blocks 8 threadedly sleeved on the outside of the bidirectional threaded rod 10 utilize the fit with the limit rod 9 to move relatively inside the limit rod 9, driving the telescopic frame 6 to telescope. During the telescopic process, the telescopic frame 6 drives the guide block 7 to slide inside the guide rail 5, thereby driving the guide rail 5 to move up and down, and the sampling tube 42 fixedly installed on the guide rail 5 can move up and down accordingly to achieve height adjustment.

[0039] Working principle: When using the environment detection multi-point sampling device, such as Figure 1-5As shown, first place the frame 1 at the point to be tested, and then when the height of the sampling tube 42 needs to be adjusted according to actual needs, rotate the bidirectional threaded rod 10 to drive the telescopic frame 6 to extend and retract, and drive the guide rail 5 to move up and down, and the sampling tube 42 can move up and down accordingly to achieve height adjustment, and then rotate the active dial 22. The active dial 22 drives the gear 24 to rotate intermittently through the groove wheel mechanism between it and the driven groove wheel 23, and the rack 31 can move a fixed distance, and the slide rod 3 thereby drives the piston rod 41 to move a fixed distance inside the sampling tube 42, so that the air is quantitatively extracted into the sampling tube 42.

[0040] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0041] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multi-point sampling device for environmental detection, characterized in that: It comprises a frame (1), a slide bar (3) is slidably mounted inside the frame (1), a distance module (2) is mounted on the rear side of the frame (1), the distance module (2) is used to drive the slide bar (3) to move at a fixed distance, and a plurality of sampling modules (4) are sleeved on the outer side of the slide bar (3); A limit rod (9) is fixed at the lower front end of the frame body (1), and a bidirectional threaded rod (10) is rotatably mounted inside the limit rod (9), and movable blocks (8) are threadedly sleeved on the outer sides of both ends of the bidirectional threaded rod (10), a telescopic frame (6) is movably arranged in the middle of the frame body (1), and two movable blocks (8) are rotatably mounted on the left and right ends of the lower side of the telescopic frame (6), and guide blocks (7) are rotatably mounted on the left and right ends of the upper side of the telescopic frame (6), and the guide blocks (7) are slidably mounted inside the guide rail (5).

2. The multi-point sampling device for environmental detection according to claim 1, characterized in that: The distance module (2) comprises a rotating rod (21) and an active dial (22) whose bearings are mounted on the rear side of the frame (1); a gear (24) and a driven sheave (23) are fixedly sleeved on the middle and outer sides of the lower end of the rotating rod (21), respectively; and the driven sheave (23) and the active dial (22) form a sheave structure.

3. The multi-point sampling device for environmental detection according to claim 2, characterized in that: A rack (31) is meshingly connected to a side portion of the gear (24), and the rack (31) is fixed on the outside of the slide bar (3).

4. The multi-point sampling device for environmental detection according to claim 2, characterized in that: The upper end of the active dial (22) and the left end of the bidirectional threaded rod (10) are both connected to a handle, and a movable block (8) and a guide block (7) threadedly sleeved on the outer side of the bidirectional threaded rod (10) are respectively fitted and slidable inside the limit rod (9) and the guide rail (5).

5. The multi-point sampling device for environmental detection according to claim 1, characterized in that: The sampling module (4) is composed of a piston rod (41) and a sampling cylinder (42), and the front end of the piston rod (41) is slidably mounted inside the sampling cylinder (42), and the rear end of the piston rod (41) is sleeved on the outside of the sliding rod (3), and the rear end of the sampling cylinder (42) is fixedly connected to the middle front end of the guide rail (5), and the front end of the sampling cylinder (42) is provided with an air inlet and an air outlet via a one-way valve.

6. The multi-point sampling device for environmental detection according to claim 1, characterized in that: The guide rails (5) are distributed at equal intervals above the limiting rods (9).

Images