Rapid pretreatment device for organochlorine pesticide pollutants

Abstract

The utility model discloses a quick pretreatment device for organochlorine pesticide pollutants, which comprises an upper cover plate and a vacuum bin, the upper cover plate is connected with a sampling bottle for collecting organochlorine pesticide pollutants through a sample injection control tube, and the vacuum bin is provided with a plurality of groups of liquid collecting tubes right below the sample injection control tube. The upper cover plate is provided with a plurality of groups of clamping grooves used for connecting sample injection control pipes, and fixing pieces used for connecting the sample injection control pipes are arranged in the clamping grooves; a positioning piece matched with the clamping groove is arranged on the periphery of the sample injection control pipe; wherein the positioning piece is used for being matched with the fixing piece through the clamping groove, and the sample injection control pipe is connected with the upper cover plate. According to the utility model, the sample injection control tube can be quickly and reliably connected to the upper cover plate through the clamping groove and the positioning piece, so that the assembly process of the device is simplified, and the operation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a rapid pretreatment device for organochlorine pesticide pollutants. Background Art

[0002] Organochlorine pesticides are a common class of pesticides, but their residues in the environment can cause potential harm to the ecosystem and human health. Therefore, rapid treatment of organochlorine pesticide pollutants has become critical.

[0003] In conventional pretreatment devices for organochlorine pesticide pollutants, the sampling control tubes are mostly connected by threads. A hole matching the thread of the sampling control tube is provided on the upper cover plate, and the sampling control tube is connected by screwing into the threaded hole.

[0004] When used for a long time or is affected by factors such as vibration and pressure, the threads may become loose or damaged, resulting in connection failure or functional impairment. At the same time, there are certain restrictions on the size, shape and material of the injection control tube, which is difficult to adapt to different application scenarios or special requirements. Therefore, a rapid pretreatment device for organochlorine pesticide pollutants is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a rapid pretreatment device for organochlorine pesticide pollutants, so as to solve the problem that the injection control tubes in the conventional organochlorine pesticide pollutant pretreatment devices mentioned in the above background technology are mostly connected by threads, and when used for a long time or affected by factors such as vibration and pressure, the threads may become loose or damaged, resulting in connection failure or functional impairment. At the same time, there are certain restrictions on the size, shape and material of the injection control tube, which is difficult to adapt to different application scenarios or special requirements.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a rapid pretreatment device for organochlorine pesticide pollutants, comprising an upper cover plate and a vacuum chamber, wherein the upper cover plate is connected to a sampling bottle for collecting organochlorine pesticide pollutants through a sampling control tube, and the vacuum chamber is provided with a plurality of groups of liquid collecting tubes directly below the sampling control tube, and a solid phase extraction column can be placed in the sampling bottle to adsorb and enrich the organochlorine pesticide pollutants.

[0007] The upper cover plate is provided with a plurality of groups of engaging grooves for connecting the injection control tube, and the interior of the engaging grooves is provided with fixing pieces for connecting the injection control tube;

[0008] The outer periphery of the injection control tube is provided with a positioning piece matched with the engaging groove;

[0009] Wherein, the positioning member is used to cooperate with the fixing member through the engaging groove to connect the injection control tube with the upper cover plate.

[0010] Preferably, the upper cover plate is provided with a plurality of channels for inserting the injection control tube, the engaging groove comprises guide grooves provided on both sides of the channel, an arc-shaped groove is provided at the lower part of the guide groove, and the angle of the arc-shaped groove is degrees.

[0011] Preferably, the fixing member includes elastic grooves opened on both sides of the inner wall of the channel and located at the lower part of the guide groove, a return spring is arranged inside the elastic groove, and a limiting wing plate is arranged above the two groups of the return springs, and the two groups of the limiting wing plates are connected by a ring plate.

[0012] Preferably, the positioning member comprises a positioning plate arranged on the outer periphery of the injection control tube, and two groups of guide plates matching with the guide grooves are arranged on both sides of the positioning plate.

[0013] Preferably, a positioning groove is provided at the tail end of the arc-shaped groove, and the positioning groove cooperates with the positioning plate.

[0014] Preferably, the injection control tube is provided with a sealing gasket above the positioning plate.

[0015] Preferably, a connecting conduit is provided on one side of the vacuum chamber, and a pressure gauge is provided on the upper portion of the connecting conduit.

[0016] Preferably, a placement plate is connected to the inside of the vacuum chamber via a fixing rod, and a plurality of insertion channels for the liquid collecting pipes to pass through are provided on the placement plate.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model provides a clamping groove and a positioning piece, so that the sample injection control tube can be quickly and reliably connected to the upper cover plate, which simplifies the assembly process of the device and improves the operating efficiency.

[0019] The use of the positioning piece can ensure the stability of the injection control tube during the connection process, reduce the risk of loosening or falling off, and thus improve the reliability and stability of the connection.

[0020] By setting a sealing gasket above the injection control tube, a better sealing effect can be provided, the occurrence of leakage problems can be reduced, and the integrity and accuracy of the sample can be ensured.

[0021] Providing multiple sets of snap-fit ​​grooves and channels, as well as matching guide grooves and guide plates, allows for adapting to injection control tubes of different sizes and shapes, thereby enhancing the design flexibility of the device and making it more adaptable to different application scenarios and special requirements.

[0022] The structural layout of the upper cover plate, vacuum chamber, liquid collecting pipe and other components makes the operation of the device more convenient and easy to handle organochlorine pesticide pollutant samples. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0024] Figure 2 This is a schematic diagram of the bottom structure of the upper cover plate of an embodiment of the utility model;

[0025] Figure 3 This is a schematic diagram of the upper structure of the upper cover plate of an embodiment of the utility model;

[0026] Figure 4 This is a schematic diagram of the vacuum chamber structure of an embodiment of the utility model;

[0027] Figure 5 This is a schematic diagram of the structure of the fixing member of an embodiment of the utility model;

[0028] Figure 6 This is a schematic diagram of the structure of the sample injection control tube according to an embodiment of the utility model;

[0029] Figure 7 This is a schematic diagram of the limiting wing plate structure of an embodiment of the utility model.

[0030] In the figure: 1. upper cover plate; 101. channel; 2. vacuum chamber; 3. injection control tube; 4. sampling bottle; 5. liquid collecting tube; 6. engaging groove; 601. guide groove; 602. arc groove; 603. positioning groove; 7. fixing piece; 701. elastic groove; 702. return spring; 703. limit wing plate; 704. ring plate; 8. positioning piece; 801. positioning plate; 802. guide plate; 9. sealing gasket; 10. connecting conduit; 11. pressure gauge; 12. fixing rod; 13. placement plate; 14. insertion channel. DETAILED DESCRIPTION

[0031] In order to solve the problem that most of the injection control tubes in traditional organochlorine pesticide pollutant pretreatment devices are connected by threads, the threads may become loose or damaged when used for a long time or affected by factors such as vibration and pressure, resulting in connection failure or functional impairment. At the same time, there are certain restrictions on the size, shape and material of the injection control tube, which is difficult to adapt to different application scenarios or special requirements. The embodiment of the utility model provides a rapid pretreatment device for organochlorine pesticide pollutants. The technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0032] See also Figure 1-7The utility model provides a rapid pretreatment device for organochlorine pesticide pollutants, comprising an upper cover plate 1 and a vacuum chamber 2. The upper cover plate 1 is connected to a sampling bottle 4 for collecting organochlorine pesticide pollutants through a sampling control tube 3. The vacuum chamber 2 is located directly below the sampling control tube 3 and is provided with a plurality of liquid collecting tubes 5.

[0033] The upper cover plate 1 is provided with a plurality of engaging grooves 6 for connecting the injection control tube 3, and the upper cover plate 1 is provided with a plurality of channels 101 for inserting the injection control tube 3, and the engaging grooves 6 include guide grooves 601 provided on both sides of the channels 101, and an arc-shaped groove 602 is provided at the lower part of the guide groove 601, and the angle of the arc-shaped groove 602 is 90 degrees. A positioning groove 603 is provided at the tail end of the arc-shaped groove 602, and the positioning groove 603 cooperates with the positioning plate 801.

[0034] A fixing part 7 for connecting the injection control tube 3 is arranged inside the locking groove 6; the fixing part 7 includes elastic grooves 701 opened on both sides of the inner wall of the channel 101 and located at the lower part of the guide groove 601, and a return spring 702 is arranged inside the elastic groove 701. Limiting wing plates 703 are arranged above two groups of the return springs 702, and the two groups of the limiting wing plates 703 are connected by a ring plate 704.

[0035] The outer periphery of the injection control tube 3 is provided with a positioning member 8 that matches the locking groove 6; the positioning member 8 includes a positioning plate 801 arranged on the outer periphery of the injection control tube 3, and two groups of guide plates 802 that match the guide groove 601 are arranged on both sides of the positioning plate 801.

[0036] The positioning member 8 is used to cooperate with the fixing member 7 through the engaging groove 6 to connect the injection control tube 3 with the upper cover plate 1 .

[0037] The injection control tube 3 is located above the positioning plate 801 and is provided with a sealing gasket 9 .

[0038] A connecting conduit 10 is disposed on one side of the vacuum chamber 2 , and a pressure gauge 11 is disposed on the upper portion of the connecting conduit 10 .

[0039] The interior of the vacuum chamber 2 is connected to a placement plate 13 via a fixing rod 12 , and the placement plate 13 is provided with a plurality of insertion channels 14 for the liquid collecting pipes 5 to pass through.

[0040] The working principle of the rapid pretreatment device for organochlorine pesticide pollutants provided by the utility model is as follows: during installation, the guide plates 802 on both sides of the positioning plate 801 at the lower part of the injection control tube 3 are aligned with the guide groove 601, and the injection control tube 3 is pressed downward. The positioning plate 801 squeezes the ring plate 704 located at the channel 101, and the ring plate 704 is forced to squeeze the reset spring 702 located inside the elastic groove 701 through the limiting wing plates 703 on both sides. The reset spring 702 is forced to produce compression deformation until the guide plate 802 passes through the guide groove 601 and moves into the arc groove 602. At the same time, the sealing gasket 9 is forced to produce compression deformation and squeeze and fit to the upper cover plate 1, so that the gap between the injection control tube 3 and the upper cover plate 1 is filled to meet the requirements.

[0041] Rotate the injection control tube 3 90° until the guide plate 802 rotates into the positioning groove 603. At this time, release the pressure on the injection control tube 3, and the return spring 702 elastically stretches to push the guide plate 802 upward and move it into the positioning groove 603, thus completing the installation and fixing of the injection control tube 3.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rapid pretreatment device for organochlorine pesticide pollutants, characterized in that: The invention comprises an upper cover plate (1) and a vacuum chamber (2), wherein the upper cover plate (1) is connected to a sampling bottle (4) for collecting organochlorine pesticide pollutants via a sampling control tube (3), and the vacuum chamber (2) is provided with a plurality of liquid collecting tubes (5) directly below the sampling control tube (3). The upper cover plate (1) is provided with a plurality of groups of engaging grooves (6) for connecting the injection control tube (3), and the interior of the engaging grooves (6) is provided with fixing members (7) for connecting the injection control tube (3); The outer periphery of the injection control tube (3) is provided with a positioning piece (8) that matches the engaging groove (6); The positioning member (8) is used to connect the injection control tube (3) to the upper cover plate (1) by cooperating with the fixing member (7) through the engaging groove (6).

2. The rapid pretreatment device for organochlorine pesticide pollutants according to claim 1 is characterized in that: The upper cover plate (1) is provided with a plurality of channels (101) for inserting the injection control tube (3), the engaging groove (6) comprises guide grooves (601) provided on both sides of the channel (101), an arc-shaped groove (602) is provided at the lower part of the guide groove (601), and the angle of the arc-shaped groove (602) is 90 degrees.

3. The rapid pretreatment device for organochlorine pesticide pollutants according to claim 2 is characterized in that: The fixing member (7) comprises elastic grooves (701) opened on both sides of the inner wall of the channel (101) and located below the guide groove (601), a return spring (702) is arranged inside the elastic groove (701), and limiting wing plates (703) are arranged above the two groups of the return springs (702), and the two groups of the limiting wing plates (703) are connected via a ring plate (704).

4. The rapid pretreatment device for organochlorine pesticide pollutants according to claim 3 is characterized in that: The positioning member (8) comprises a positioning plate (801) arranged on the outer periphery of the injection control tube (3), and two groups of guide plates (802) matching with the guide grooves (601) are arranged on both sides of the positioning plate (801).

5. The rapid pretreatment device for organochlorine pesticide pollutants according to claim 4 is characterized in that: A positioning groove (603) is provided at the rear end of the arc-shaped groove (602), and the positioning groove (603) cooperates with the positioning plate (801).

6. The rapid pretreatment device for organochlorine pesticide pollutants according to claim 5, characterized in that: The injection control tube (3) is located above the positioning plate (801) and is provided with a sealing gasket (9).

7. The rapid pretreatment device for organochlorine pesticide pollutants according to claim 6 is characterized by: A connecting conduit (10) is provided on one side of the vacuum chamber (2), and a pressure gauge (11) is provided on the upper part of the connecting conduit (10).

8. The rapid pretreatment device for organochlorine pesticide pollutants according to claim 7, characterized in that: The interior of the vacuum chamber (2) is connected to a placement plate (13) via a fixing rod (12), and the placement plate (13) is provided with a plurality of insertion channels (14) for the liquid collecting pipes (5) to pass through.

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