A sealed sampling device for particulate contamination

Abstract

This utility model relates to the field of sealed sampling technology for particulate contamination, specifically disclosing a sealed sampling device for particulate contamination, including a base, a support rod fixedly installed on the top of the base, and a guide rod slidably connected inside the support rod. A sleeve is sleeved on the outer side of the upper end of the guide rod, and a sampler is fixedly installed on the top of the sleeve. An adjustment component is provided on the outer side of the support rod, and a fixing component is provided on the outer side of the sleeve. A support component is provided on the plate of the base. The adjustment component includes a positioning hole, a pull ring, and a screw. The left end of the support rod has positioning holes in an array. A pull ring is slidably connected to the outer side of the support rod, and a screw is threaded to the left end of the pull ring. This sealed sampling device for particulate contamination can cover multiple sampling areas of different heights by adjusting the height of the sampler, ensuring that particle distributions at different heights within the same system are sampled.

Description

Technical Field

[0001] This utility model relates to the field of sealed sampling technology for particulate contamination, specifically a sealed sampling device for particulate contamination. Background Technology

[0002] A sealed sampling device for particulate contamination is a standardized, closed sampling system based on the principle of vacuum. It refers to the quantity, size distribution, composition, and morphology of particulate matter present in a medium and the potential impact on system performance, product quality, or health and safety. It is a tool or system that ensures the physical isolation of the sample from the external environment during the sampling process. The goal is to prevent the sample from being contaminated or lost during sampling, storage, transportation, and analysis, and to maintain the representativeness and integrity of the sample. Chinese Patent CN221811704U discloses an atmospheric sampling sealing device, a protective box, a hydraulic cylinder mounted on the top of the protective box to provide suction for atmospheric sampling, a control panel mounted on one side of the hydraulic cylinder, and a load-bearing base fixedly connected to the bottom of the protective box. Compared with the prior art, the beneficial effects of this utility model are: by controlling the movement of the piston through a telescopic rod, before atmospheric sampling, the inlet valve is opened and the gas intake valve and exhaust valve are closed, so that the sampled gas can be sucked into the air sampling box for storage. After sampling, the inlet valve is closed, and the gas intake valve can be opened to facilitate the gas to be taken and tested at any time. The air sampling box can ensure the sealing of the device. After the sample testing is completed, the exhaust valve can be opened, and the exhaust gas can be squeezed out by the piston to empty the air sampling box, which is convenient for sampling new gas next time, thus ensuring the sampling time window of the sampled gas.

[0003] Based on existing solutions and actual production and processing applications, existing sealed sampling devices for particulate contamination have limitations when sampling material particles. Because the height of the sampling head is fixed, it cannot cover sampling areas at different heights, leading to a decrease in sample representativeness. This is especially true in multi-layered or large-volume systems, affecting the sampling volume and sample condition. Therefore, we propose a sealed sampling device for particulate contamination to solve the problems mentioned above. Utility Model Content

[0004] The purpose of this invention is to provide a sealed sampling device for particulate contamination, in order to solve the problem mentioned in the background art that the current sealed sampling devices for particulate contamination cannot cover sampling areas at different heights, resulting in a decrease in sample representativeness, especially in multi-layer or large-volume systems, which affects the sampling volume and sample condition.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sealed sampling device for particulate contamination, comprising a base: A support rod is fixedly installed on the top of the base, and a guide rod is slidably connected inside the support rod. A sleeve is sleeved on the outer side of the upper end of the guide rod, and a sampler is fixedly installed on the top of the sleeve. An adjustment component is provided on the outer side of the support rod, a fixing component is provided on the outer side of the sleeve, and a support component is provided on the plate of the base.

[0006] Preferably, the adjustment assembly includes a positioning hole, a pull ring, and a screw, and the left end of the support rod body has positioning holes in an array state. The outer side of the support rod body is slidably connected to a pull ring, and the left end of the pull ring is threadedly connected to a screw.

[0007] Preferably, the front and rear ends of the inner ring of the pull ring are fixedly connected to the lower end of the guide rod body, the length of the guide rod body is greater than the length of the inner cavity of the support rod body, and the rod body of the screw is connected to the positioning hole through threads.

[0008] Preferably, the fixing component includes a fixing rod, a spring, and a fixing hole, and the fixing rod is slidably connected to both the front and rear ends of the sleeve. The rod body of the fixing rod extends through into the interior of the sleeve. A spring is sleeved and connected to the outer side of the fixing rod about the outside of the sleeve. Fixing holes are opened at both the front and rear ends of the upper end of the guide rod body, and the end of the fixing rod about the inside of the sleeve is engaged with the fixing hole.

[0009] Preferably, the support assembly includes a support plate, support legs, a sliding rod, a ball bearing screw, and a hinge block. The support plate is slidably connected to both the left and right ends of the base, and support legs are fixedly installed at both the front and rear ends of the bottom of the support plate. A sliding rod is fixedly installed at the rear end of the top of the base, and a ball bearing screw is rotatably connected to the front end of the top of the base. A hinge block is fixedly installed at both the front and rear ends of the top of the support plate.

[0010] Preferably, the support plate is configured in a "U" shape, with the rear hinge block of the support plate slidably connected to the body of the sliding rod, and the front hinge block of the support plate connected to the body of the ball screw via a threaded connection.

[0011] Compared with the prior art, the present invention has at least the following beneficial effects: the sealed sampling device for particulate contamination can cover multiple sampling areas of different heights by adjusting the height of the sampler, ensuring that the particle distribution at different heights within the same system is sampled. At the same time, by fitting the sleeve on the outside of the guide rod, the installation process can be reduced and additional support is provided, thereby obtaining a more stable sampling state. Then, the extension and retraction of the support legs can provide additional support, which helps to maintain the stability of the sampling point position and ensure the consistency and repeatability of sampling. 1. By unscrewing the screw from the locating hole, the fixing between the support rod and the guide rod can be released. Since the front and rear ends of the inner ring of the pull ring are fixedly connected to the lower end of the guide rod, the pull ring can be pushed upward, causing the guide rod to slide inside the support rod, thereby adjusting the height of the sampler. By adjusting the height of the sampler, multiple sampling areas of different heights can be covered, ensuring that particle distributions at different heights within the same system are sampled, and adapting to the sampling needs of different areas. 2. By pulling the two sets of fixed rods, the fixed rods cause the springs to stretch, and the sleeve is placed on the outside of the upper end of the guide rod. At the same time, the fixing hole at the upper end of the guide rod is aligned with the rod body of the fixed rod. Then, the pulling of the fixed rod is released, and the spring force causes the fixed rod to return to its original position, so that the rod body of the fixed rod is ejected into the diameter of the fixing hole, and the sleeve is fixed together with the guide rod, thereby installing the sampler. By placing the sleeve on the outside of the guide rod, the installation process can be simplified and additional support is provided, thereby obtaining a more stable sampling state. 3. The rear hinge block of the support plate is slidably connected to the sliding rod, and the front hinge block of the support plate is connected to the ball screw through a threaded drive, allowing the ball screw to rotate. This causes the hinge block to drive the two sets of support plates to slide in opposite directions, and the rear hinge block of the support plate to slide on the sliding rod, thereby adjusting the position of the support leg and providing additional support to the base. The extension and retraction of the support leg can provide additional support, helping to maintain the stability of the sampling point position, ensuring the consistency and repeatability of sampling, and providing overall vibration resistance and pit impact resistance. Attached Figure Description

[0012] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the main structure of this utility model; Figure 3 This is a side view of the structure of this utility model; Figure 4 This is a schematic cross-sectional view of the connection structure between the guide rod and the sleeve of this utility model; Figure 5 This is a cross-sectional view of the connection between the support rod and the guide rod of this utility model; Figure 6 This is a cross-sectional structural diagram of the base of this utility model.

[0013] In the diagram: 1. Base; 2. Support rod; 3. Guide rod; 4. Sleeve; 5. Sampler; 6. Positioning hole; 7. Pull ring; 8. Screw; 9. Fixing rod; 10. Spring; 11. Fixing hole; 12. Support plate; 13. Support leg; 14. Sliding rod; 15. Ball bearing double-acting screw; 16. Hinge block. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] To address the technical problem that existing sealed sampling devices for particulate contamination cannot cover sampling areas at different heights, leading to a decrease in sample representativeness, especially in multi-layer or large-volume systems, which affects the sampling volume and sample condition, this embodiment discloses the following technical content; Please see Figures 1-6 A sealed sampling device for particulate pollution includes a base 1, a support rod 2, a guide rod 3, a sleeve 4, a sampler 5, a positioning hole 6, a pull ring 7, a screw 8, a fixing rod 9, a spring 10, a fixing hole 11, a support plate 12, a support leg 13, a sliding rod 14, a ball bearing double screw 15, and a hinge block 16. like Figure 1 , Figure 2 , Figure 3 , Figure 4 and attached Figure 5 As shown, when the sampler 5 collects particulate contamination data, because the sampler 5 is fixedly installed on the top of the sleeve 4, it can pull the two sets of sliding fixed rods 9 of the sleeve 4. When the fixed rods 9 are pulled, the fixed rods 9 cause the spring 10 to stretch, and the sleeve 4 is fitted onto the upper end of the guide rod 3. Because both the front and rear ends of the upper end of the guide rod 3 are provided with fixing holes 11, and the fixed rods 9 extend through to the inside of the sleeve 4, the rod body of the fixed rods 9 and the diameter of the fixing holes 11 are aligned. Align the guide rod 3 and place the sleeve 4 on the outside of the guide rod 3. Then release the pull on the fixed insertion rod 9, so that the spring force of the spring 10 drives the fixed insertion rod 9 to reset and the spring 10 drives the fixed insertion rod 9 to be ejected into the hole of the fixing hole 11, so that the rod body of the fixed insertion rod 9 is engaged with the hole of the fixing hole 11, and the guide rod 3 and the sleeve 4 are fixed together. By placing the sleeve 4 on the outside of the guide rod 3, the installation process can be reduced and additional support is provided, thereby obtaining a more stable sampling state. like Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, after the sampler 5 is installed, the base 1 is placed in the designated position, and the support leg 13 contacts the ground, allowing the ball bearing double-acting screw 15 to rotate. The ball bearing double-acting screw 15 is connected to the front hinge block 16 of the support plate 12 via a thread, and is slidably connected to the sliding rod 14 via the rear hinge block 16 of the support plate 12. Simultaneously, the support plate 12, being a U-shaped structure, slides on the left and right ends of the base 1, and both the front and rear ends of the bottom of the support plate 12 are fixedly mounted. Equipped with support legs 13, when the ball bidirectional screw 15 is rotated, the ball bidirectional screw 15 causes the support plate 12 to slide in the opposite direction through the front hinge block 16, and causes the rear hinge block 16 to slide on the body of the sliding rod 14, thereby allowing the support plate 12 to slide inside the base 1 and adjusting the position of the support legs 13, thereby increasing the contact area of ​​the base 1. The extension and retraction of the support legs 13 can provide additional support, which helps to maintain the stability of the sampling point position and provides overall vibration resistance and pit impact resistance. like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, after the sampler 5 is placed in the designated position, its height can be adjusted according to the actual situation. The screw 8 is threaded into the positioning hole 6, allowing it to be screwed out. This releases the connection between the support rod 2 and the guide rod 3. Since the front and rear ends of the inner ring 7 are fixedly connected to the guide rod 3, and the length of the guide rod 3 is greater than the length of the inner cavity of the support rod 2, the pull ring 7 can be pushed upwards, causing it to slide on the outside of the support rod 2 and drive the guide rod. 3. The sampler 5 slides inside the support rod 2 to adjust its height. After the sampler 5 is adjusted to a suitable height, the positioning holes 6 are arrayed on the left end of the support rod 2. Then, the screw 8 can be screwed on again to connect the screw 8 to the positioning hole 6 through the thread, thereby fixing the support rod 2 and the guide rod 3 together. This fixes the height of the sampler 5. By adjusting the height of the sampler 5, multiple sampling areas of different heights can be covered, ensuring that particle distributions of different heights within the same system are sampled and adapting to the sampling needs of different areas.

[0016] The above completes the series of operations for the sealed sampling device for particulate contamination. Any content not described in detail herein is prior art known to those skilled in the art. All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0017] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sealed sampling device for particulate contamination, comprising a base (1), characterized in that: A support rod (2) is fixedly installed on the top of the base (1), and a guide rod (3) is slidably connected inside the support rod (2). A sleeve (4) is sleeved on the outer side of the upper end of the guide rod (3), and a sampler (5) is fixedly installed on the top of the sleeve (4). An adjustment component is provided on the outer side of the support rod (2), a fixing component is provided on the outer side of the sleeve (4), and a support component is provided on the plate of the base (1).

2. The sealed sampling device for particulate contamination according to claim 1, characterized in that: The adjustment assembly includes a positioning hole (6), a pull ring (7) and a screw (8), and the left end of the support rod (2) is provided with a positioning hole (6) in an array state. The outer side of the support rod (2) is slidably connected with a pull ring (7), and the left end of the pull ring (7) is connected with a screw (8) by a thread.

3. The sealed sampling device for particulate contamination according to claim 2, characterized in that: The front and rear ends of the inner ring of the pull ring (7) are fixedly connected to the lower end of the guide rod (3). The length of the guide rod (3) is greater than the length of the inner cavity of the support rod (2). The rod of the screw (8) is connected to the positioning hole (6) by thread.

4. The sealed sampling device for particulate contamination according to claim 1, characterized in that: The fixing assembly includes a fixing rod (9), a spring (10), and a fixing hole (11). The fixing rod (9) is slidably connected to both the front and rear ends of the sleeve (4). The rod body of the fixing rod (9) extends through into the interior of the sleeve (4). The spring (10) is sleeved and connected to the outer side of the fixing rod (9) about the outside of the sleeve (4). The fixing hole (11) is opened at both the front and rear ends of the upper end of the guide rod (3). The fixing rod (9) about the inside of the sleeve (4) is engaged with the fixing hole (11).

5. A sealed sampling device for particulate contamination according to claim 1, characterized in that: The support assembly includes a support plate (12), support legs (13), sliding rod (14), ball bearing double screw (15), and hinge block (16). The support plate (12) is slidably connected to both the left and right ends of the base (1), and the support legs (13) are fixedly installed at both the front and rear ends of the bottom of the support plate (12). The sliding rod (14) is fixedly installed at the rear end of the top of the base (1), and the ball bearing double screw (15) is rotatably connected to the front end of the top of the base (1). The hinge block (16) is fixedly installed at both the front and rear ends of the top of the support plate (12).

6. A sealed sampling device for particulate contamination according to claim 5, characterized in that: The support plate (12) is set in a "U" shaped structure. The rear hinge block (16) in the support plate (12) is slidably connected to the rod body of the sliding rod (14), and the front hinge block (16) in the support plate (12) is connected to the rod body of the ball bidirectional screw (15) through threaded transmission.

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