Anti-scattering activated carbon pipe pretreatment device
By designing a pretreatment device to prevent spillage of activated carbon tubes, the problems of glass shards splashing and activated carbon spillage during the cutting process were solved, achieving safe and efficient cutting and collection of activated carbon tubes, and ensuring the accuracy of test results and operational safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN BAOAN DISTRICT PUBLIC HEALTH SERVICE CENT
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-15
AI Technical Summary
In the existing activated carbon tube pretreatment process, cutting can easily cause glass shards to fly and injure people, and spilled activated carbon can affect the accuracy of test results.
Design a pretreatment device for spill-proof activated carbon tubes, including a support and a cutter. The cutter has a flexible clamping hole and a transparent window for observation. The blade is driven to cut by a button. The cut fragments fall into a collection container with a suspended design. The support is provided with a through hole for introducing vials.
It achieves safe cutting, avoids glass shards and activated carbon spillage, ensures the integrity and accuracy of test results, and improves operational efficiency and safety.
Smart Images
Figure CN224247427U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of activated carbon tube testing technology, and in particular to a pretreatment device for preventing spillage of activated carbon tubes. Background Technology
[0002] With the rapid acceleration of my country's industrialization, the types of volatile organic compounds (VOCs) generated in workplace air during essential processes such as raw material and process manufacturing, and product storage and transportation are increasing daily. Most VOCs are chemically toxic and can enter the human body through the respiratory tract and skin, causing carcinogenic, teratogenic, and mutagenic effects, making them a significant health hazard. Strengthening the monitoring of various VOCs in workplaces is crucial. Currently, my country's more than ten existing standards for detecting VOCs in workplace air all employ activated carbon tube sampling followed by solvent desorption-gas chromatography (GC-GC). The activated carbon tube sampling-solvent desorption method is inexpensive, uses few organic solvents, poses minimal harm to laboratory personnel, is environmentally friendly, simple and quick to operate, has high analytical efficiency, low detection limits, and good precision, making it suitable for determining various organic toxins in gaseous pollution sources.
[0003] In laboratory testing, the pretreatment of activated carbon tubes requires cutting the tubes and transferring the activated carbon particles for desorption detection. Current pretreatment methods involve cutting the activated carbon tubes with metal or a grinding wheel, causing them to shatter. This method easily results in glass shards flying everywhere, potentially even entering the activated carbon itself. Furthermore, the sharp edges of the broken activated carbon tubes can easily injure the operator. During the transfer of activated carbon, the broken glass tubes can cause the activated carbon to spill, resulting in a loss of adsorbent and affecting the accuracy of the test results. Utility Model Content
[0004] To overcome the shortcomings of the existing technology, this utility model provides a pretreatment device for preventing spillage of activated carbon tubes.
[0005] A pretreatment device for preventing spillage of activated carbon tubes includes:
[0006] A support and a cutter mounted on the support; the cutter is a cylindrical body with an internal cavity, and each of the top and bottom ends of the cutter has an elastic clamping hole for the activated carbon tube to pass through.
[0007] A pair of buttons are symmetrically arranged on the outer wall of the cutter. Each button has a blade connected by a spring on the inner wall of the cutter. The opening of the blade is parallel to the plane of the cross-section of the cutter. When the activated carbon tube passes through the two elastic clamping holes to form a fixed position, pressing the button can make the blade contact the outer wall of the activated carbon tube and form a cutting surface.
[0008] A transparent window is provided on the side wall of the cutter, and the transparent window is used to observe the cut surface;
[0009] When the cutter is mounted on the bracket, the bottom end of the cutter is suspended in the air.
[0010] Preferably, the cutter comprises an upper layer, a middle layer, and a lower layer connected sequentially from top to bottom; the upper and lower layers are made of elastic materials, and the middle layer is made of rigid materials;
[0011] The upper layer has elastic clamping holes on its top surface and the lower layer has elastic clamping holes on its bottom surface; the transparent window and the button are located in the middle layer; the middle layer includes an upper half and a lower half that are detachably connected to each other.
[0012] Preferably, the upper half and the lower half are connected by a threaded connection.
[0013] Preferably, the support further includes a support platform and a support column disposed on the support platform; the support column is used to support the cutter; the upper surface of the support platform is provided with a plurality of through holes, the through holes being funnel-shaped and extending downward to the lower surface of the support platform; the lower end of the through holes is provided with a vial placement position.
[0014] Preferably, the support platform is a double-layer structure composed of upper and lower parts, and a storage compartment is provided below the vial placement position.
[0015] Preferably, the support platform is rectangular, and the plurality of through holes are evenly spaced.
[0016] Preferably, the cutter is cylindrical.
[0017] The pretreatment device for preventing spillage of activated carbon tubes provided by this utility model involves first inserting the activated carbon tube into the cutter and securing it with elastic clamping holes at the top and bottom of the cutter. Simultaneously, the cutting position of the carbon tube is observed through a transparent window to ensure it aligns with the blade. Then, one hand presses a button to bring the blade into contact with the pre-cutting position of the activated carbon tube, while the other hand rotates the activated carbon tube to complete the cut and break it off. At this point, glass shards fall into the cutter, preventing them from splashing and causing injury. The cut activated carbon tube can be removed from both the top and bottom of the cutter, and the carbon powder inside can be poured into the through-hole on the support platform and directly into a pre-placed vial, preventing spillage. When it is necessary to clean the residue inside the cutter, the upper and lower sections of the middle layer of the cutter can be unscrewed to empty it.
[0018] Compared with existing technologies, this device integrates carbon tube fixing, carbon tube cutting, transfer of carbon powder inside the tube after cutting, and collection of residue after cutting into one unit. This allows operators to centrally handle the pretreatment work, which not only improves work efficiency and ensures safety, but also minimizes the impact on subsequent test results. Attached Figure Description
[0019] Figure 1 This is a cross-sectional schematic diagram of the pretreatment device for preventing spillage of activated carbon tubes in an embodiment of this utility model;
[0020] Figure 2 This is a top view of the pretreatment device for preventing spillage of activated carbon tubes in an embodiment of this utility model;
[0021] Figure 3 This is an exploded view of the cutter in an embodiment of the present invention;
[0022] The markings in the accompanying drawings are as follows:
[0023] 100. Bracket; 101. Support platform; 102. Support column; 103. Through hole; 104. Storage compartment;
[0024] 200. Cutter; 201. Elastic clamping hole; 202. Spring; 203. Blade; 204. Button; 205. Upper layer; 206. Middle layer; 2061. Upper half; 2062. Lower half; 207. Lower layer; 208. Transparent window;
[0025] 300, activated carbon tube; 400, vial. Detailed Implementation
[0026] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0027] Provides a pretreatment device for preventing spillage of activated carbon tubes, such as... Figures 1 to 3 As shown, it includes:
[0028] The support 100 and the cutter 200 disposed on the support; the cutter is a cylindrical body with an internal cavity, and the top and bottom ends of the cutter each have an elastic clamping hole 201 for the activated carbon tube 300 to pass through.
[0029] A pair of buttons 204 are symmetrically arranged on the outer wall of the cutter. Each button has a blade 203 connected to it by a spring 202 on the inner wall of the cutter. The opening of the blade is parallel to the plane of the cross section of the cutter. When the activated carbon tube passes through the two elastic clamping holes to form a fixed position, pressing the button will cause the blade to contact the outer wall of the activated carbon tube and form a cutting surface.
[0030] A transparent window 208 is provided on the side wall of the cutter, which is used to observe the cut surface;
[0031] When the cutter is mounted on the stand, the bottom of the cutter is suspended in the air.
[0032] The cutter is a cylindrical or rectangular object. The elastic clamping hole is an open structure made of elastic material, such as rubber or silicone, which adapts to activated carbon tubes of different diameters through elastic deformation, achieving stable clamping and preventing the carbon tubes from breaking under pressure. The button is a pressable mechanical part on the outer wall, made of plastic or metal. When pressed, a spring drives the blade to move into the cavity, ensuring controllable cutting. The blade can be made of thin stainless steel, with its opening perpendicular to the cutter's axis, creating a smooth cut along the circumference of the carbon tube. The transparent window is a transparent observation area on the side wall, made of acrylic or glass, used for real-time monitoring of the cutting depth and cut condition. The suspended state means the bottom of the cutter is not in direct contact with the support; this is achieved by fixing the top of the cutter with a support column, allowing the cut carbon tube fragments to fall directly into the collection container.
[0033] Specifically, after the activated carbon tube is inserted into the elastic clamping hole of the cutter, the upper and lower clamping holes fix the carbon tube through elastic deformation, preventing it from shaking during cutting. When the buttons on both sides are pressed, the spring compresses and pushes the blade inward. After the blade contacts the outer wall of the carbon tube, it completes the cut along the transverse direction, forming a smooth cut. The transparent window allows the operator to observe the blade position and cutting depth, ensuring that the cut surface is within the predetermined area. The suspended design at the bottom of the cutter allows the lower half of the cut carbon tube to fall directly into the collection device below, preventing fragments from remaining inside the cutter.
[0034] The above solution solves the problems of glass shard splashing, operational hazards, and activated carbon spillage in existing cutting methods, achieving safe cutting of carbon nanotubes and controllable collection of fragments, and ensuring the integrity and accuracy of activated carbon transfer during the testing process.
[0035] Furthermore, the cutter includes an upper layer 205, a middle layer 206, and a lower layer 207 connected from top to bottom. The upper and lower layers are made of elastic material, while the middle layer is made of rigid material. The top surface of the upper layer and the bottom surface of the lower layer are each provided with elastic clamping holes. A transparent window and a button are provided in the middle layer. The middle layer includes an upper half 2061 and a lower half 2062 that are detachably connected to each other.
[0036] Among them, elastic materials refer to flexible materials with a certain degree of deformation capability, specifically rubber or silicone. The elastic clamping holes can adapt to different tube diameters by deformation when clamping activated carbon tubes. Rigid materials refer to rigid materials with high structural strength, specifically ABS plastic or polycarbonate, used to fix the positions of buttons and transparent windows. Detachable connections refer to connection methods where two components can be separated and reassembled, specifically using threaded fits or snap-fit structures, facilitating the maintenance of the blade or the cleaning of internal residue.
[0037] Specifically, when the activated carbon tube passes through the elastic clamping holes in the upper and lower layers, the deformation of the elastic material generates a clamping force to fix the carbon tube. During the cutting operation, pressing the button on the outer wall of the middle layer drives the blade to cut the carbon tube, and the transparent window facilitates observation of the cutting depth. After the upper and lower halves of the middle layer separate, the internal blade can be cleaned or replaced to prevent debris accumulation from affecting cutting accuracy.
[0038] In one implementation, the upper and lower halves of the middle layer of the cutter are connected by threads for easy unscrewing. However, the connection method between the upper and lower halves is not limited to this.
[0039] Specifically, when it is necessary to clean residue and maintain the blade, unscrew the two sections of the middle layer of the cutter to allow the blade and spring assembly to be directly removed for cleaning or replacement without the need for additional tools. After disassembly, the guiding nature of the threaded fit ensures that the upper and lower halves can be quickly aligned during reassembly, preventing misalignment from causing blade displacement or deformation of the elastic clamping hole.
[0040] Furthermore, the support also includes a support platform 101 and a support column 102 disposed on the support platform; the support column is used to support the cutter; the upper surface of the support platform is provided with a plurality of through holes 103, the through holes are funnel-shaped and extend downward to the lower surface of the support platform; the lower end of the through holes is provided with a vial 400 placement position.
[0041] The support platform refers to the supporting structure used to place the cutter and form an operating platform. It can be made of metal or rigid plastic, for example, by injection molding or welding to form a stable base. The support platform is connected to the cutter via support columns, providing a stable operating space for activated carbon tube cutting. The support columns are structures vertically fixed to the support platform to support the cutter. They can be cylindrical rods or height-adjustable telescopic rods, for example, fixed to the surface of the support platform by threaded connections or snap-fit methods, ensuring the stability of the cutter when suspended. The funnel-shaped through-hole refers to the conical structure of the hole on the support platform, wider at the top and narrower at the bottom. This can be formed by molding or machining to create a channel with an inclined inner wall. For example, the opening diameter can be 20 mm, gradually narrowing to 5 mm downwards, facilitating the sliding of debris along the hole wall into the container below. The vial placement area refers to the area corresponding to the lower end of the through hole for fixing the collection container. Specifically, it can adopt an annular groove or magnetic adsorption structure. For example, a groove adapted to the vial mouth can be set on the lower surface of the support platform to align the vial mouth with the through hole, ensuring that the debris generated during cutting falls directly into the vial.
[0042] The above solution solves the problems of debris spillage and contamination in existing cutting methods. Debris enters the vial directly through the opening, eliminating the need for additional collection steps during operation, reducing errors caused by human contact, maintaining a clean experimental environment, and improving the reliability of test results.
[0043] Furthermore, the support platform is a double-layer structure composed of upper and lower parts, and a storage compartment 104 is provided below the vial placement position.
[0044] The double-layer structure refers to the support platform being composed of two layers, upper and lower, which can be achieved using snap-fit or threaded connections for easy disassembly and maintenance. The storage compartment is an independent space located below the vial placement area, which can be achieved by creating a recess or drawer structure in the lower layer of the support platform, for temporary storage of cut activated carbon tube fragments or spare vials.
[0045] Specifically, the upper layer of the support platform is equipped with a funnel-shaped through-hole that extends downwards to the corresponding vial placement position on the lower layer. Cut activated carbon tube fragments or activated carbon can fall into the vial through the through-hole. The storage compartment is located directly below the vial placement position. When the vial is removed, the storage compartment can be used to store spare vials or temporarily hold fragments that have not been cleaned up in time, preventing activated carbon from spilling due to fragment accumulation or tool changes during operation.
[0046] Furthermore, the support platform is rectangular with multiple through holes evenly spaced; for example, the support platform has dimensions of 12CM*9CM*6CM to be suitable for 1.5ml vials.
[0047] The above is a description of the pretreatment device for anti-spillage activated carbon tubes of this utility model, which is used to help understand this utility model. However, the implementation of this utility model is not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the principle of this utility model shall be considered as equivalent substitutions and shall be included within the protection scope of this utility model.
Claims
1. A pretreatment device for preventing spillage of activated carbon tubes, characterized in that, It includes a support and a cutter disposed on the support; the cutter is a cylindrical body with an internal cavity, and each of the top and bottom ends of the cutter has an elastic clamping hole for the activated carbon tube to pass through; A pair of buttons are symmetrically arranged on the outer wall of the cutter. Each button has a blade connected by a spring on the inner wall of the cutter. The opening of the blade is parallel to the plane of the cross-section of the cutter. When the activated carbon tube passes through the two elastic clamping holes to form a fixed position, pressing the button can make the blade contact the outer wall of the activated carbon tube and form a cutting surface. A transparent window is provided on the side wall of the cutter, and the transparent window is used to observe the cut surface; When the cutter is mounted on the bracket, the bottom end of the cutter is suspended in the air.
2. The pretreatment device for preventing spillage of activated carbon tubes as described in claim 1, characterized in that, The cutter comprises an upper layer, a middle layer, and a lower layer connected sequentially from top to bottom; the upper and lower layers are made of elastic material, and the middle layer is made of rigid material; The upper layer has elastic clamping holes on its top surface and the lower layer has elastic clamping holes on its bottom surface; the transparent window and the button are located in the middle layer; the middle layer includes an upper half and a lower half that are detachably connected to each other.
3. The pretreatment device for preventing spillage of activated carbon tubes as described in claim 2, characterized in that, The upper half and the lower half are connected by a threaded connection.
4. The pretreatment device for preventing spillage of activated carbon tubes as described in claim 1, characterized in that, The support also includes a support platform and a support column disposed on the support platform; the support column is used to support the cutter; the upper surface of the support platform is provided with a plurality of through holes, the through holes being funnel-shaped and extending downward to the lower surface of the support platform; the lower end of the through holes is provided with a vial placement position.
5. The pretreatment device for preventing spillage of activated carbon tubes as described in claim 4, characterized in that, The support platform is a double-layer structure composed of upper and lower parts, and a storage compartment is provided below the vial placement position.
6. The pretreatment device for preventing spillage of activated carbon tubes as described in claim 5, characterized in that, The support platform is rectangular, and the multiple through holes are evenly spaced.
7. The pretreatment device for preventing spillage of activated carbon tubes as described in any one of claims 1 to 6, characterized in that, The cutter is cylindrical in shape.