Soil dioxin content detection pretreatment device

Abstract

The utility model discloses a soil dioxin content detection pretreatment device, and relates to the technical field of chemical or physical analysis. A soil dioxin content detection pretreatment device comprises a sample container. A limiting device is arranged on the sample container and comprises a sliding plate, a container box and two protective shells, the two protective shells are fixedly connected to the upper surface of the sliding plate, and the outer wall of the lower end of the container box is in sliding connection with the interior of a groove formed in the upper surface of the sliding plate; the two sides of a limiting block in the limiting device are pushed to move oppositely to drive a reset spring to contract, meanwhile, the outer wall of the other end of the limiting block is separated from the interior of a first limiting block groove, then the container box is pulled and lifted upwards, and the container box can be taken out from the interior of the sample container, so that the container box is convenient to disassemble; and the situation that workers need to disassemble the container box with the help of tools is avoided, the disassembly efficiency of the container box is effectively improved, and meanwhile the maintenance and cleaning efficiency of the container box is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical or physical analysis, in particular to a soil dioxin content detection pre-processing device. Background Art

[0002] The content of dioxins in nature is extremely low, far below the detection limit and quantitative limit of modern analytical testing instruments. A Chinese utility model patent, authorized with the publication number "CN215811955U," discloses a pretreatment device for detecting dioxin content in soil. The top of the sample container is open, and a drying device is provided in a gap above the top of the sample container. A lifting plate is slidably provided in the inner cavity of the sample container, and a scraper is provided in a gap above the top of the sample container. The scraper displacement mechanism is provided on the sample container and drives the scraper to move horizontally back and forth, air-drying the sample soil layer by layer.

[0003] The above technical solution uses a drying device to air-dry the soil sample on the top layer of the sample container. After air-drying, the top layer of soil particles is scraped off by a scraper, and then the lower layer of still moist soil is exposed. The moist soil is then air-dried by the drying device, and the air-dried soil layer is scraped off by a scraper again, and the cycle is repeated to air-dry the sample soil layer by layer. However, the above technical solution still has certain defects. For example, the above equipment drives the lifting plate to slowly and gradually move upward through the lifting mechanism through the soil sample in the sample container, and dries the soil sample on the top layer of the sample container through the drying device. However, when the sample container needs to be maintained and cleaned after long-term use, the staff needs to use tools to disassemble it and perform maintenance and cleaning. This operation is complicated and difficult, thereby reducing the work efficiency of the staff and the practicality of the equipment. Utility Model Content

[0004] The purpose of the present utility model is to solve at least one of the technical problems existing in the prior art and to provide a soil dioxin content detection pretreatment device, which can solve the problem that the device drives the lifting plate to slowly and gradually move upward through the lifting mechanism through the soil sample in the sample container, and dries the soil sample on the uppermost layer of the sample container through the drying device. However, when the sample container needs to be maintained and cleaned after long-term use, the staff needs to use tools to disassemble it and perform maintenance and cleaning. This operation is complicated and difficult, thereby reducing the work efficiency of the staff and the practicality of the equipment.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a soil dioxin content detection pretreatment device, comprising a sample container, wherein a limiting device is provided on the sample container;

[0006] The limiting device includes a sliding plate, a container box and two protective shells. The two protective shells are fixedly connected to the upper surface of the sliding plate. The lower outer wall of the container box is slidably connected to the inner part of the groove opened on the upper surface of the sliding plate. The grooves opened at the four corners of the upper surface of the sliding plate are fixedly connected to the inner part of the positioning rod.

[0007] Among them, a second limit block groove is opened at one end of the opposite surface of the two protective shells, the interior of the two second limit block grooves is slidably connected to the limit block, and three return springs are arranged inside the two second limit block grooves. The outer walls on both sides of the lower end of the container box are opened with a first limit block groove.

[0008] Preferably, the four corner fixing blocks on the outer wall of the lower end of the container box are respectively slidably connected to the outer walls of the corresponding positioning rods, and the outer walls on both sides of the two limit blocks are respectively slidably connected to the inner sides of the grooves provided on the outer walls of the corresponding protective shells;

[0009] Among them, the two ends of the six return springs are fixedly connected to the corresponding inner wall of the second limit block groove and one end of the limit block, and the ends of the two limit blocks close to the first limit block groove are in contact with the corresponding inner wall of the first limit block groove.

[0010] Preferably, the outer wall of the sliding plate is slidably connected to the interior of the sample container, and the inner walls on both sides of the sample container are provided with grooves in which threaded rods are rotatably connected;

[0011] The fixing blocks on both sides of the sliding plate are respectively threadedly connected to the outer walls of the corresponding threaded rods.

[0012] Preferably, one end of the two threaded rods close to the sliding plate is rotated and extended to the outside of the sample container;

[0013] Wherein, dryers are installed on the inner walls of both sides of the sample container, and one end of the two threaded rods close to the sliding plate is fixedly connected to a transmission wheel, and the outer walls of the two transmission wheels are connected with a transmission belt.

[0014] Preferably, the four corner outer walls of the upper end of the sample container are fixedly connected with fixing blocks, and the four fixing blocks are arranged in groups of two;

[0015] Wherein, screening boxes are installed on both side outer walls of the sample container, and the opposite surfaces of the two groups of fixed blocks are fixedly connected with fixed rods.

[0016] Preferably, the outer walls of the two fixing rods are slidably connected with scrapers, the upper openings of the two screening boxes are both equipped with sieve plates, and the upper left end of the sample container is provided with a slot in which a motor is fixedly connected;

[0017] The output end of the motor rotates and extends to the inside of the groove provided on the inner wall of the left sample container and is fixedly connected to one end of the left threaded rod.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. This soil dioxin content detection pretreatment device pushes the two sides of the limit block in the limit device to move in opposite directions, causing the return spring to contract while causing the outer wall of the other end to disengage from the interior of the first limit block groove. The container box can then be pulled upward to be removed from the interior of the sample container. This facilitates the removal of the container box, avoids the need for workers to use tools to disassemble it, effectively improves the efficiency of container box disassembly, and also improves the efficiency of container box maintenance and cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the external structure of the container box of the present utility model;

[0023] Figure 3 This is a schematic diagram of the structure inside the protective shell of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the outer portion of the transmission wheel of the utility model.

[0025] Figure numerals: 1, sample container; 2, screening box; 3, fixed block; 4, scraper; 5, dryer; 6, fixed rod; 7, container box; 8, sieve plate; 9, threaded rod; 10, motor; 11, positioning rod; 12, first limit block groove; 13, sliding plate; 14, second limit block groove; 15, limit block; 16, protective shell; 17, return spring; 18, transmission belt; 19, transmission wheel. DETAILED DESCRIPTION

[0026] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0027] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They 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 orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0028] In the description of this utility model, terms such as "greater than," "less than," and "exceed" are understood to exclude the number indicated, while terms such as "above," "below," and "within" are understood to include the number indicated. The terms "first" and "second" are used solely to distinguish technical features and are not to be construed as indicating or implying relative importance, or as implicitly specifying the number or order of the technical features indicated.

[0029] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0030] See also Figure 1-4 , the utility model provides a technical solution: a soil dioxin content detection pre-treatment device, comprising a sample container 1;

[0031] A limiting device is provided on the sample container 1;

[0032] The limiting device includes a sliding plate 13, a container box 7 and two protective shells 16. The two protective shells 16 are fixedly connected to the upper surface of the sliding plate 13. The lower outer wall of the container box 7 is slidably connected to the inner groove of the upper surface of the sliding plate 13. The inner grooves of the four corners of the upper surface of the sliding plate 13 are fixedly connected with positioning rods 11. The four corner fixing blocks of the lower outer wall of the container box 7 are respectively slidably connected to the outer walls of the corresponding positioning rods 11. The opposite ends of the two protective shells 16 are each provided with a second limiting block groove 14. The interior of the two second limiting block grooves 14 The two limiting blocks 15 are both slidably connected, and the outer walls on both sides of the two limiting blocks 15 are respectively slidably connected to the inner sides of the grooves opened on the outer walls of the corresponding protective shells 16. Three return springs 17 are respectively provided inside the two second limiting block grooves 14. The two ends of the six return springs 17 are respectively fixedly connected to the corresponding inner walls of the second limiting block grooves 14 and one end of the limiting block 15. The outer walls on both sides of the lower end of the container box 7 are respectively provided with first limiting block grooves 12, and the ends of the two limiting blocks 15 close to the first limiting block grooves 12 are respectively in contact with the inner walls of the corresponding first limiting block grooves 12.

[0033] Among them, the outer wall of the sliding plate 13 is slidably connected to the inside of the sample container 1, and the inner walls of both sides of the sample container 1 are provided with grooves inside which are rotatably connected with threaded rods 9. The fixed blocks on both sides of the sliding plate 13 are respectively threadedly connected to the outer walls of the corresponding threaded rods 9. The ends of the two threaded rods 9 close to the sliding plate 13 are rotated and extended to the outside of the sample container 1. Dryers 5 are installed on the inner walls of both sides of the sample container 1. The ends of the two threaded rods 9 close to the sliding plate 13 are fixedly connected to transmission wheels 19. The outer walls of the two transmission wheels 19 are transmission sleeved with transmission belts 18. The outer walls of the four corners of the upper end of the sample container 1 are fixedly connected with fixed blocks 3, and the four fixed blocks 3 are in a group of two. Screening boxes 2 are installed on the outer walls of both sides of the sample container 1. The opposite surfaces of the two groups of fixed blocks 3 are fixedly connected with fixed rods 6. The outer walls of the two fixed rods 6 are slidably connected with scrapers 4. Screen plates 8 are installed at the upper openings of the two screening boxes 2. A motor 10 is fixedly connected to the inside of a groove opened at the upper left end of the sample container 1. The output end of the motor 10 rotates and extends to the inside of the groove opened on the inner wall of the left sample container 1 and is fixedly connected to one end of the left threaded rod 9.

[0034] Furthermore, when using the device, it is started by connecting an external power supply, first placing the material inside the container box 7, then drying the material inside the container box 7 through the dryer 5, then the output end of the motor 10 rotates to drive the left threaded rod 9 to rotate, while the transmission belt 18 and the transmission wheel 19 cooperate to drive the right threaded rod 9 to rotate, then the threaded rod 9 rotates to drive the sliding plate 13 to move upward while driving the container box 7 to move upward, and then the scraper 4 is pushed to move so that the material inside the container box 7 falls onto the surface of the two sieve plates 8, and then the material is screened by the sieve plates 8 and falls into the interior of the screening box 2, and then when the container box 7 needs to be removed, the two sides of the limit block 15 are pushed to move in opposite directions to drive the return spring 17 to contract while causing the outer wall of the other end to disengage from the inside of the first limit block groove 12, and then the container box 7 is pulled up to be removed from the interior of the sample container 1.

[0035] By pushing the two sides of the limit block 15 in the limit device to move in opposite directions, the return spring 17 is driven to contract while the outer wall of the other end is disengaged from the inside of the first limit block groove 12. Then, the container box 7 is pulled up to be removed from the inside of the sample container 1, which facilitates the disassembly of the container box 7 and avoids the need for staff to use tools to disassemble it, effectively improving the disassembly efficiency of the container box 7 and the maintenance and cleaning efficiency of the container box 7. The output end of the motor 10 rotates to drive the left threaded rod 9 to rotate, and the transmission belt 18 and the transmission wheel 19 cooperate to drive the right threaded rod 9 to rotate. Then, the threaded rod 9 rotates to drive the sliding plate 13 to move upward and drive the container box 7 to move upward. This facilitates the adjustment of the height of the container box 7 and effectively improves the practicality and flexibility of the equipment.

[0036] Working principle: first, the material is placed inside the container box 7, and then the material inside the container box 7 is dried by the dryer 5, and then the output end of the motor 10 rotates to drive the left threaded rod 9 to rotate, while the transmission belt 18 and the transmission wheel 19 cooperate to drive the right threaded rod 9 to rotate, and then the threaded rod 9 rotates to drive the sliding plate 13 to move upward while driving the container box 7 to move upward, and then the scraper 4 is pushed to move so that the material inside the container box 7 falls onto the surface of the two sieve plates 8, and then the material is screened by the sieve plates 8 and falls into the inside of the screening box 2, and then when the container box 7 needs to be disassembled, push the limit block 15 on both sides to move in opposite directions to drive the return spring 17 to contract while causing the outer wall of the other end to disengage from the inside of the first limit block groove 12, and then pull the container box 7 up to remove it from the inside of the sample container 1.

[0037] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A soil dioxin content detection pretreatment device, comprising a sample container (1), characterized in that: A limiting device is provided on the sample container (1); The limiting device comprises a sliding plate (13), a container box (7) and two protective shells (16), the two protective shells (16) are fixedly connected to the upper surface of the sliding plate (13), the lower end outer wall of the container box (7) is slidably connected to the inside of the groove opened on the upper surface of the sliding plate (13), and the inside of the grooves opened at the four corners of the upper surface of the sliding plate (13) are fixedly connected to positioning rods (11); Wherein, a second limit block groove (14) is provided at one end of the opposite surface of the two protective shells (16), the interiors of the two second limit block grooves (14) are slidably connected to the limit blocks (15), the interiors of the two second limit block grooves (14) are provided with three return springs (17), and the outer walls on both sides of the lower end of the container box (7) are provided with first limit block grooves (12).

2. A soil dioxin content detection pretreatment device according to claim 1, characterized in that: The four corner fixing blocks of the lower outer wall of the container box (7) are respectively slidably connected to the outer walls of the corresponding positioning rods (11), and the outer walls of the two limiting blocks (15) are respectively slidably connected to the inner sides of the grooves provided on the outer walls of the corresponding protective shells (16); The two ends of the six return springs (17) are respectively fixedly connected to the inner wall of the corresponding second limit block groove (14) and one end of the limit block (15), and the ends of the two limit blocks (15) close to the first limit block groove (12) are respectively in contact with the inner wall of the corresponding first limit block groove (12).

3. The soil dioxin content detection pretreatment device according to claim 1, characterized in that: The outer wall of the sliding plate (13) is slidably connected to the interior of the sample container (1), and the inner walls of both sides of the sample container (1) are provided with grooves, the interiors of which are rotatably connected to threaded rods (9); The fixed blocks on both sides of the sliding plate (13) are respectively threadedly connected to the outer walls of the corresponding threaded rods (9).

4. A soil dioxin content detection pre-treatment device according to claim 3, characterized in that: One end of the two threaded rods (9) close to the sliding plate (13) is rotated and extended to the outside of the sample container (1); Wherein, dryers (5) are installed on the inner walls of both sides of the sample container (1), and one end of the two threaded rods (9) close to the sliding plate (13) is fixedly connected to a transmission wheel (19), and the outer walls of the two transmission wheels (19) are connected to a transmission belt (18).

5. The soil dioxin content detection pre-treatment device according to claim 1, characterized in that: The four corner outer walls of the upper end of the sample container (1) are all fixedly connected with fixed blocks (3), and the four fixed blocks (3) are arranged in groups of two; Wherein, screening boxes (2) are installed on both side outer walls of the sample container (1), and the opposite surfaces of the two groups of fixing blocks (3) are fixedly connected with fixing rods (6).

6. A soil dioxin content detection pre-treatment device according to claim 5, characterized in that: The outer walls of the two fixed rods (6) are slidably connected to a scraper (4), the upper openings of the two screening boxes (2) are both equipped with a sieve plate (8), and the upper left end of the sample container (1) is provided with a slot in which a motor (10) is fixedly connected; The output end of the motor (10) rotates and extends to the inside of the groove provided on the inner wall of the left sample container (1) and is fixedly connected to one end of the left threaded rod (9).

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