Multifunctional sampling backpack for on-site environment monitoring

Abstract

The utility model relates to the technical field of knapsacks, in particular to a site environment monitoring multifunctional sampling knapsack which comprises a knapsack body, a protective cover is installed on the surface of the knapsack body through a zipper, straps are fixedly connected to the side, away from the protective cover, of the knapsack body, and a sampling device is arranged in the knapsack body and comprises a sampling pipe and an air pump. The sampling pipe is fixedly connected with the inner wall of the bag body, the air pump is located in the bag body, the output end of the air pump is fixedly connected with a communicating pipe, the input end of the air pump is fixedly connected with a guide pipe, one end of the guide pipe penetrates through the bag body, and the end, away from the air pump, of the guide pipe is fixedly connected with a suction head. According to the scheme, sample collection can be effectively carried out on a plurality of point positions on site, the one-way valves are matched with the spacers, air samples are effectively prevented from being polluted, the quality of the samples is ensured, meanwhile, sampling and extraction of the air samples are simplified, the working efficiency of a user is improved, and normal use of equipment is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of backpacks, in particular to a multifunctional sampling backpack for on-site environmental monitoring. Background Art

[0002] On-site environmental monitoring is the real-time or regular observation, detection and evaluation of the environmental conditions of a specific place. With the development of society, it is often necessary to take air samples on site when responding to environmental monitoring, and a sampling backpack is required in this process.

[0003] Existing technologies include the utility model with publication number CN212110815U, which discloses a multifunctional sampling backpack for on-site environmental monitoring, including a combination box, a cavity selection mechanism and an operating mechanism. The combination box includes an upper box body and a lower box body, which is convenient for users to easily carry it on their body for moving and collecting samples, freeing the operator's hands and ensuring that the operator can hold the connecting tube and the collection head to collect samples at the location where collection is required. An air suction pump is installed inside the collection head, which can suck external gas samples into the interior of the single-cavity tube along the connecting tube. The user can drive the single-cavity tube to rotate by operating the angle motor to ensure that the hole on the side of the single-cavity tube can select an air inlet to send the external sample into the combination box. By controlling different air inlets, different boxes can be selected for collection, ensuring that the user can better control and collect different samples for use.

[0004] Currently, most backpacks take samples by drawing air into a single-lumen tube. During the operation, the single-lumen tube has only one entrance and exit, so the air in the tube cannot be discharged. When sampling, the sample is easily exposed to the internal air, causing sample contamination. At the same time, due to the presence of air in the single-lumen tube, the air pressure in the single-lumen tube increases when the sample is added, which is prone to deformation and damage. It is also inconvenient to extract the sample, and this needs to be improved. Utility Model Content

[0005] The purpose of the utility model is to solve the problem that most backpacks in the prior art take samples by drawing air into a single-lumen tube. During the operation, since the single-lumen tube has only one inlet and outlet, the air in the single-lumen tube cannot be discharged. When sampling, the sample is easily in contact with the internal air, causing sample contamination. At the same time, due to the presence of air in the single-lumen tube, the air pressure in the single-lumen tube increases when the sample is added, and the tube is easily deformed and damaged, and it is inconvenient to extract the sample. A multifunctional sampling backpack for on-site environmental monitoring is proposed.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a multifunctional sampling backpack for on-site environmental monitoring, comprising a bag body, a protective cover installed on the surface of the bag body through a zipper, a shoulder strap fixedly connected to the side of the bag body away from the protective cover, a sampling device provided inside the bag body, the sampling device comprising a sampling tube and an air pump, the sampling tube is fixedly connected to the inner wall of the bag body, the air pump is located inside the bag body, the output end of the air pump is fixedly connected to a connecting tube, the input end of the air pump is fixedly connected to a conduit, one end of the conduit passes through the bag body, and the end of the conduit away from the air pump is fixedly connected to a suction head, the The end of the connecting pipe away from the air pump is fixedly connected to the exhaust head, the upper end of the sampling tube is fixedly connected to the pipe mouth, the upper end of the pipe mouth is fixedly connected to the one-way valve, the interior of the sampling tube is slidably connected to a diaphragm, the surface of the sampling tube is fixedly connected to a valve, the end of the valve away from the sampling tube is fixedly connected to a joint, and the interior of the package is provided with auxiliary components. This solution can effectively collect samples from multiple points on site, and uses a one-way valve in combination with a diaphragm to effectively prevent air samples from being contaminated, ensure the quality of the samples, and at the same time simplify the sampling and extraction of air samples, improve the user's work efficiency, and facilitate the normal use of the equipment.

[0007] Preferably, the number of the sampling tubes is three, and the three sampling tubes are arranged at equal intervals to facilitate multiple sampling.

[0008] Preferably, a ventilation groove is provided at the lower end of the sampling tube, and the ventilation groove is in the shape of an elongated strip, which effectively reduces the internal air pressure of the sampling tube and ensures the normal use of the sampling tube.

[0009] Preferably, a mounting bracket is fixedly connected to the inner wall of the package body, and the air pump is installed inside the mounting bracket, so that the air pump is effectively installed.

[0010] Preferably, the auxiliary component includes a positioning plate and a mounting plate, the positioning plate is fixedly connected to the inner wall of the package body, the mounting plate is fixedly connected to the inner wall of the package body, one end of the pipe mouth passes through the positioning plate, and one end of the one-way valve is inserted into the through hole in the mounting plate. When sampling, the user carries the package body to the sampling point, then opens the protective cover, then selects the sampling tube, pulls the handle in the direction close to the sampling tube, and the handle drives the sliding frame to move. When the sliding frame moves to above the sampling tube, the exhaust head is connected to the one-way valve, and then the air pump is turned on. The air pump draws the external air sample into the sampling tube through the catheter and the suction head. After the air enters the sampling tube, the septum is squeezed and slides downward. After completing the sampling of a single area, the area can be replaced and the above sampling operation can be repeated.

[0011] Preferably, the surface of the mounting plate is slidably connected to a sliding frame, and the exhaust head is fixedly connected to the inner wall of the sliding frame. When it is necessary to extract samples, the vacuum container can be connected to the joint through a pipe, the valve is opened, and then the air is pumped out. The air in the sampling tube is then extracted into the vacuum container, and the diaphragm is then displaced upward. After the sample extraction is completed, the pipe is unplugged and the valve is tightened, and the equipment can be used for subsequent sampling.

[0012] Preferably, a handle is fixedly connected to the surface of the sliding frame, and the edge of the handle is rounded. Pulling the handle can drive the sliding frame to move.

[0013] Compared with the prior art, the advantages and positive effects of the present invention are:

[0014] 1. In the present invention, when sampling, the user carries the bag to the sampling point, then opens the protective cover, selects the sampling tube, pulls the handle in the direction close to the sampling tube, and the handle drives the sliding frame to move. When the sliding frame moves to the top of the sampling tube, the exhaust head is connected to the one-way valve, and then the air pump is turned on. The air pump sucks the external air sample into the sampling tube through the catheter and the suction head. After the air enters the sampling tube, the septum is squeezed and slides downward. After completing the sampling of a single area, the area can be changed and the above sampling operation can be repeated. When the sample needs to be extracted, The vacuum container can be connected to the joint through a pipe, the valve can be opened, and then the air can be pumped out. The air in the sampling tube is then extracted into the vacuum container, and the septum is immediately moved upward. After the sample extraction is completed, the pipe is unplugged and the valve is tightened, and the equipment can be used for subsequent sampling. This solution can effectively collect samples from multiple points on site, and uses a one-way valve in combination with a septum to effectively avoid contamination of air samples and ensure the quality of the samples. At the same time, it simplifies the sampling and extraction of air samples, improves the user's work efficiency, and facilitates the normal use of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model proposes a three-dimensional structural diagram of a multifunctional sampling backpack for on-site environmental monitoring;

[0016] Figure 2 This utility model provides a schematic diagram of the upward structure of a multifunctional sampling backpack for on-site environmental monitoring;

[0017] Figure 3 This utility model proposes a schematic diagram of the internal structure of a multifunctional sampling backpack for on-site environmental monitoring;

[0018] Figure 4 This utility model proposes a multifunctional sampling backpack for on-site environmental monitoring Figure 3 Schematic diagram of the structure at A;

[0019] Figure 5This utility model proposes a multifunctional sampling backpack for on-site environmental monitoring Figure 3 Schematic diagram of the structure viewed from above;

[0020] Figure 6 The utility model provides a schematic diagram of the explosion structure of the sampling tube in a multifunctional sampling backpack for on-site environmental monitoring.

[0021] Legend:

[0022] 1. Package body; 2. Protective cover; 3. Shoulder strap; 4. Sampling device; 41. Sampling tube; 42. Valve; 43. Connector; 44. Nozzle; 45. One-way valve; 46. Spacer; 47. Breathing groove; 48. Auxiliary components; 481. Positioning plate; 482. Mounting plate; 483. Sliding rack; 484. Handle; 49. Exhaust head; 410. Connecting pipe; 411. Air pump; 412. Mounting rack; 413. Conduit; 414. Suction tip. DETAILED DESCRIPTION

[0023] See also Figures 1-6 The utility model provides a technical solution: a multifunctional sampling backpack for on-site environmental monitoring, comprising a bag body 1, a protective cover 2 is installed on the surface of the bag body 1 through a zipper, a shoulder strap 3 is fixedly connected to the side of the bag body 1 away from the protective cover 2, a sampling device 4 is arranged inside the bag body 1, the sampling device 4 comprises a sampling tube 41 and an air pump 411, the sampling tube 41 is fixedly connected to the inner wall of the bag body 1, the air pump 411 is located inside the bag body 1, the output end of the air pump 411 is fixedly connected to a connecting tube 410, the input end of the air pump 411 is fixedly connected to a conduit 413, one end of the conduit 413 passes through the bag body 1, the end of the conduit 413 away from the air pump 411 is fixedly connected to a suction head 414, the connecting tube 41 An exhaust head 49 is fixedly connected to the end away from the air pump 411, a nozzle 44 is fixedly connected to the upper end of the sampling tube 41, a one-way valve 45 is fixedly connected to the upper end of the nozzle 44, a septum 46 is slidably connected to the interior of the sampling tube 41, a valve 42 is fixedly connected to the surface of the sampling tube 41, and a connector 43 is fixedly connected to the end of the valve 42 away from the sampling tube 41. An auxiliary component 48 is provided inside the package 1. This solution can effectively collect samples from multiple points on site, and the use of the one-way valve 45 in conjunction with the septum 46 effectively prevents contamination of the air sample, ensures the quality of the sample, and simplifies the sampling and extraction of the air sample, improves the user's work efficiency, and facilitates the normal use of the equipment.

[0024] Preferably, there are three sampling tubes 41 , and the three sampling tubes 41 are arranged at equal intervals to facilitate multiple sampling.

[0025] Preferably, a ventilation groove 47 is provided at the lower end of the sampling tube 41 . The ventilation groove 47 is in the shape of an elongated strip, which effectively reduces the internal air pressure of the sampling tube 41 and ensures the normal use of the sampling tube 41 .

[0026] Specifically, the inner wall of the bag body 1 is fixedly connected with a mounting bracket 412 , and the air pump 411 is installed inside the mounting bracket 412 , thereby effectively installing the air pump 411 .

[0027] In this embodiment: the auxiliary component 48 includes a positioning plate 481 and a mounting plate 482. The positioning plate 481 is fixedly connected to the inner wall of the bag body 1, and the mounting plate 482 is fixedly connected to the inner wall of the bag body 1. One end of the pipe mouth 44 passes through the positioning plate 481, and one end of the one-way valve 45 is inserted into the through hole in the mounting plate 482. When sampling, the user carries the bag body 1 to the sampling point, then opens the protective cover 2, then selects the sampling tube 41, and pulls the handle 484 in the direction close to the sampling tube 41. The handle 484 drives the sliding rack 483 to move. When the sliding rack 483 moves to the top of the sampling tube 41, the exhaust head 49 is connected to the one-way valve 45, and then the air pump 411 is turned on. The air pump 411 sucks the external air sample into the sampling tube 41 through the conduit 413 and the suction head 414. After the air enters the sampling tube 41, the septum 46 is squeezed and slides downward. After completing the sampling of a single area, the area can be changed and the above sampling operation can be repeated.

[0028] In this embodiment: the surface of the mounting plate 482 is slidably connected to the sliding frame 483, and the exhaust head 49 is fixedly connected to the inner wall of the sliding frame 483. When it is necessary to extract samples, the vacuum container can be connected to the joint 43 through a pipe, and the valve 42 is opened, and then the air is pumped out. The air in the sampling tube 41 is then extracted into the vacuum container, and the diaphragm 46 is then displaced upward. After the sample extraction is completed, the pipe is unplugged and the valve 42 is tightened, and the equipment can be used for subsequent sampling.

[0029] Specifically, a handle 484 is fixedly connected to the surface of the sliding frame 483 , and the edge of the handle 484 is rounded. Pulling the handle 484 can drive the sliding frame 483 to move.

[0030] Working principle: When sampling, the user carries the bag 1 to the sampling point, then opens the protective cover 2, selects the sampling tube 41, and pulls the handle 484 in the direction close to the sampling tube 41. The handle 484 drives the sliding frame 483 to move. When the sliding frame 483 moves to the top of the sampling tube 41, the exhaust head 49 is connected to the one-way valve 45, and then the air pump 411 is turned on. The air pump 411 sucks the external air sample into the sampling tube 41 through the conduit 413 and the suction head 414. After the air enters the sampling tube 41, the septum 46 is squeezed and slides downward. After completing the sampling of a single area, the area can be changed and the above sampling can be repeated. Sampling operation, when it is necessary to extract samples, the vacuum container can be connected to the joint 43 through a pipe, the valve 42 is opened, and then the air is pumped. The air in the sampling tube 41 is then extracted into the vacuum container, and the septum 46 is immediately displaced upward. After the sample extraction is completed, the pipe is unplugged and the valve 42 is tightened, and the equipment can be used for subsequent sampling. This solution can effectively collect samples from multiple points on site, and the one-way valve 45 is used in conjunction with the septum 46 to effectively avoid contamination of the air sample and ensure the quality of the sample. At the same time, it simplifies the sampling and extraction of air samples, improves the user's work efficiency, and facilitates the normal use of the equipment.

Claims

1. A multifunctional sampling backpack for on-site environmental monitoring, comprising a bag body (1), a protective cover (2) being mounted on the surface of the bag body (1) via a zipper, and a shoulder strap (3) being fixedly connected to a side of the bag body (1) away from the protective cover (2), characterized in that: A sampling device (4) is provided inside the package (1), and the sampling device (4) comprises a sampling tube (41) and an air pump (411). The sampling tube (41) is fixedly connected to the inner wall of the package (1). The air pump (411) is located inside the package (1). The output end of the air pump (411) is fixedly connected to a connecting tube (410). The input end of the air pump (411) is fixedly connected to a conduit (413). One end of the conduit (413) passes through the package (1), and the end of the conduit (413) away from the air pump (411) is fixedly connected to a suction head. (414), the end of the connecting pipe (410) away from the air pump (411) is fixedly connected to the exhaust head (49), the upper end of the sampling tube (41) is fixedly connected to the pipe mouth (44), the upper end of the pipe mouth (44) is fixedly connected to the one-way valve (45), the interior of the sampling tube (41) is slidably connected to a diaphragm (46), the surface of the sampling tube (41) is fixedly connected to a valve (42), the end of the valve (42) away from the sampling tube (41) is fixedly connected to a joint (43), and the interior of the package (1) is provided with an auxiliary component (48).

2. The multifunctional sampling backpack for on-site environmental monitoring according to claim 1, characterized in that: The number of the sampling tubes (41) is three, and the three sampling tubes (41) are arranged at equal intervals.

3. The multifunctional sampling backpack for on-site environmental monitoring according to claim 1, characterized in that: A ventilation groove (47) is provided at the lower end of the sampling tube (41), and the ventilation groove (47) is in the shape of an elongated strip.

4. The multifunctional sampling backpack for on-site environmental monitoring according to claim 1, characterized in that: The inner wall of the package body (1) is fixedly connected to a mounting frame (412), and the air pump (411) is installed inside the mounting frame (412).

5. The multifunctional sampling backpack for on-site environmental monitoring according to claim 1, characterized in that: The auxiliary component (48) includes a positioning plate (481) and a mounting plate (482), wherein the positioning plate (481) is fixedly connected to the inner wall of the package body (1), and the mounting plate (482) is fixedly connected to the inner wall of the package body (1), one end of the pipe mouth (44) passes through the positioning plate (481), and one end of the one-way valve (45) is inserted into a through hole in the mounting plate (482).

6. The multifunctional sampling backpack for on-site environmental monitoring according to claim 5, characterized in that: The surface of the mounting plate (482) is slidably connected to a sliding frame (483), and the exhaust head (49) is fixedly connected to the inner wall of the sliding frame (483).

7. The multifunctional sampling backpack for on-site environmental monitoring according to claim 6, characterized in that: A handle (484) is fixedly connected to the surface of the sliding frame (483), and the edge of the handle (484) is rounded.

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