Online sampling structure
By designing the sampling pipes and drive components in the online sampling structure, the problem of fluidized bed samplers being unable to accurately control the quality of a single sampling was solved, achieving quantitative sampling and reducing material residue, thereby lowering sampling costs and the risk of cross-contamination.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG CANAAN TECH
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-12
AI Technical Summary
Existing fluidized bed samplers cannot accurately control the quality of a single sample, resulting in high sampling costs for valuable materials and easy leakage of residual materials inside the pipeline.
An online sampling structure was designed, including a sampling pipe, a driving component, and a sampling component. The driving component drives the sampling component to move axially along the sampling pipe and rotate around its own center to achieve quantitative sampling of the sampling slot. A limiting structure ensures the precise positioning of the sampling component.
It enables accurate control of the quality of a single sampling, reduces sampling costs, and effectively prevents material residue inside the pipeline, thus reducing the possibility of cross-contamination.
Smart Images

Figure CN224231359U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fluidized bed technology, specifically to an online sampling structure. Background Technology
[0002] In current fluidized bed processing, sampling of the internal material cylinder is required. For example, an automatic sampler disclosed in patent number CN216594339U is a commonly used sampler in the industry. It works by manually pressing the piston rod, widening the gap between the piston rod plug and the inside of the cylinder, causing the material to fall into the sleeve rod and ultimately into the sampling bottle, thus achieving online sampling.
[0003] However, the sampler of this structure cannot control the quality of a single sample, and each time it will fill the sampling bottle and the tube, resulting in high sampling costs for some precious materials and easy leakage of residual material inside the pipe to the outside. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings and deficiencies of the existing technology and to provide an online sampling structure.
[0005] The technical solution adopted by this utility model is as follows: an online sampling structure includes a sampling pipe connected to a cylinder body, the sampling pipe having a central cavity communicating with the interior of the cylinder body, and a sampling bottle connected to the central cavity being disposed on the sampling pipe.
[0006] The sampling pipe is also equipped with a driving component and a sampling component. A sampling groove is radially arranged at a position on the circumference of the sampling component.
[0007] The driving component connects to the sampling component and drives the sampling component to move axially along the sampling pipe and rotate around its own center, so that the sampling component has a first position in which at least part of the sampling groove is located outside the sampling pipe and facing the material discharge direction, and a second position in which the sampling groove is located inside the sampling pipe and opposite to the sampling bottle inlet position.
[0008] Preferably, the outer periphery of the sampling element is adapted to the shape of the inner periphery of the sampling pipe to form a sealed fit.
[0009] Preferably, the central cavity includes a first hole and a second hole connected in the direction from near the cylinder body to away from the cylinder body. The diameter of the first hole is larger than the diameter of the second hole and a first limiting step is formed between them. When the sampling member is in the second position, the sampling member abuts against the first limiting step.
[0010] Preferably, when the sampling element is in the second position, the end of the sampling element near the cylinder is flush with the port of the sampling pipe near the cylinder.
[0011] Preferably, the driving component is coaxially arranged with the sampling component, one end of which is fixedly connected to the sampling component, and the other end of which is fixedly equipped with a rotating handle.
[0012] Preferably, the rotation handle and the sampling slot opening are aligned in the same radial direction.
[0013] Preferably, a limiting sleeve is fixed on the inner circumference of the sampling pipe. The limiting sleeve has a limiting channel that is adapted to the shape of the driving member and forms a sliding fit with it. One end of the driving member passes through the limiting channel and is connected to the sampling member.
[0014] Preferably, the drive component includes a drive rod portion and a connecting portion coaxially arranged and connected along the direction from near the cylinder body to far away from the cylinder body.
[0015] The limiting channel includes a first limiting hole portion that is adapted to the shape of the drive rod portion and forms a sliding fit, and a second limiting hole portion that is adapted to the shape of the connecting portion and forms a sliding fit. The diameter of the first limiting hole portion is smaller than the diameter of the second limiting hole portion and forms a second limiting step with it. When the sampling member is in the first position, the connecting portion abuts against the second limiting step.
[0016] A first spring sleeved outside the drive rod is connected between the second limiting step and the connecting part. The drive member compresses the first spring to drive the sampling member to move axially along the sampling pipe to the first position and, under the restoring force of the first spring, moves the sampling member to the second position.
[0017] Preferably, the end of the connecting portion near the drive rod portion has a connecting groove with a diameter larger than that of the drive rod portion, and the drive rod portion passes through the bottom of the connecting groove and is fixed thereto.
[0018] One end of the first spring is located in the connecting groove, and the connecting groove provides radial restraint to the first spring.
[0019] Preferably, when the sampling component is in the second position, the sampling component abuts against the limiting sleeve.
[0020] The beneficial effects of this utility model are as follows: by quantitatively measuring materials through the sampling tank, the quality of a single sampling can be accurately controlled, the sampling cost can be reduced, and the material residue inside the pipeline can also be effectively controlled. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, obtaining other drawings based on these drawings without creative effort still falls within the scope of this utility model.
[0022] Figure 1 This is a front sectional view of the sample taken in the second position according to an embodiment of the present invention;
[0023] Figure 2 This is a front sectional view of the sample taken in the first position according to an embodiment of the present invention;
[0024] Figure 3 for Figure 1 Enlarged view of the structure at point A in the middle;
[0025] Figure 4 for Figure 2 Enlarged view of the structure at point B in the middle;
[0026] In the diagram, 1 is the sampling pipe; 2 is the sampling bottle; 3 is the driving component; 4 is the sampling component; 5 is the rotating handle; 6 is the limiting sleeve; 11 is the central cavity; 31 is the driving rod; 32 is the connecting part; 33 is the first spring; 41 is the sampling groove; 61 is the limiting channel; 111 is the first hole; 112 is the second hole; 113 is the first limiting step; 321 is the connecting groove; 611 is the first limiting hole; 612 is the second limiting hole; 613 is the second limiting step. Detailed Implementation
[0027] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.
[0028] It should be noted that all uses of "first" and "second" in the embodiments of this utility model are for the purpose of distinguishing two entities or parameters with the same name but different names. It is clear that "first" and "second" are only for the convenience of expression and should not be construed as limiting the embodiments of this utility model. Subsequent embodiments will not explain this in detail.
[0029] The directional and positional terms used in this utility model, such as "up," "down," "front," "back," "left," "right," "inner," "outer," "top," "bottom," and "side," are merely for reference to the accompanying drawings. Therefore, the directional and positional terms used are for the purpose of explaining and understanding this utility model, and not for limiting the scope of protection of this utility model.
[0030] like Figures 1 to 4 As shown in the figure, an online sampling structure according to an embodiment of the present invention includes a sampling pipe 1 connected to a cylinder body. The sampling pipe 1 has a central cavity 11 communicating with the interior of the cylinder body. A sampling bottle 2 connected to the central cavity 11 is provided on the sampling pipe 1.
[0031] The sampling pipe 1 is also equipped with a driving component 3 and a sampling component 4. A sampling groove 41 is radially arranged at a position on the circumference of the sampling component 4.
[0032] The driving component 3 connects to the sampling component 4 and drives the sampling component 4 to move axially along the sampling pipe 1 and rotate around its own center, so that the sampling component 4 has a first position in which at least part of the sampling groove 41 is located outside the sampling pipe 1 and facing the material discharge direction, and a second position in which the sampling groove 41 is located inside the sampling pipe 1 and opposite to the inlet position of the sampling bottle 2.
[0033] This setup allows for precise measurement of material in the sampling tank, enabling accurate control of the quality of each sample, reducing sampling costs, and effectively controlling material residue inside the pipe. During the manufacturing process of the sampling component, the quality of each sample can be controlled by adjusting the depth of the sampling spoon's groove.
[0034] The outer periphery of the sampling component 4 is adapted to the inner periphery of the sampling pipe 1 to form a sealed fit.
[0035] This setup ensures a tighter fit between the sampling element and the sampling pipe, preventing excess material from entering other parts of the sampling pipe and reducing the possibility of cross-contamination.
[0036] The central cavity 11 includes a first hole 111 and a second hole 112 connected in the direction from near the cylinder body to away from the cylinder body. The diameter of the first hole 111 is larger than the diameter of the second hole 112 and a first limiting step 113 is formed between them. When the sampling member 4 is in the second position, the sampling member 4 abuts against the first limiting step 113.
[0037] With this setting, the first limiting step forms a mark at the second position of the sampling piece, ensuring its precise positioning. This allows the material to accurately enter the sampling bottle from the sampling slot, preventing excessive movement that could cause material to fall and be wasted.
[0038] When the sampling element 4 is in the second position, the end of the sampling element 4 near the cylinder is flush with the port of the sampling pipe 1 near the cylinder.
[0039] This setup further prevents excess material from entering other parts of the sampling pipeline, reducing the possibility of cross-contamination.
[0040] The driving component 3 is coaxially arranged with the sampling component 4, with one end of the driving component 3 fixedly connected to the sampling component 4 and the other end fixedly fitted with a rotating handle 5.
[0041] This design allows for easy rotation of the sampling component and axial movement of the sampling component, improving operational flexibility.
[0042] The rotation handle 5 and the sampling slot 41 are aligned in the same radial direction.
[0043] With this setting, the direction of the rotating handle corresponds to the direction of the sampling slot opening, which can mark the direction of the sampling slot and further facilitate the sampling operation.
[0044] The sampling pipe 1 is fixed with a limiting sleeve 6 on its inner circumference. The limiting sleeve 6 has a limiting channel 61 that is adapted to the shape of the driving member 3 and forms a sliding fit with it. One end of the driving member 3 passes through the limiting channel 61 and is connected to the sampling member 4.
[0045] This setting improves the stability of the axial movement of the drive components.
[0046] The drive component 3 includes a drive rod portion 31 and a connecting portion 32 that are coaxially arranged and connected along the direction from near the cylinder body to away from the cylinder body.
[0047] The limiting channel 61 includes a first limiting hole 611 that is adapted to the shape of the drive rod 31 and forms a sliding fit, and a second limiting hole 612 that is adapted to the shape of the connecting part 32 and forms a sliding fit. The diameter of the first limiting hole 611 is smaller than the diameter of the second limiting hole 612 and forms a second limiting step 613 with it. When the sampling member 4 is in the first position, the connecting part 32 abuts against the second limiting step 613.
[0048] A first spring 33, sleeved outside the drive rod 31, is connected between the second limiting step 613 and the connecting part 32. The drive member 3 compresses the first spring 33 to drive the sampling member 4 to move axially along the sampling pipe 1 to the first position and moves the sampling member 4 to the second position under the restoring force of the first spring 33.
[0049] This setting further improves the stability and accuracy of the axial movement of the drive component. At the same time, releasing the first spring automatically resets the drive component and the sampling component, improving the ease of operation.
[0050] The connecting part 32 has a connecting groove 321 with a diameter larger than that of the driving rod part 31 at one end near the driving rod part 31. The driving rod part 31 passes through the bottom of the connecting groove 321 and is fixed thereto.
[0051] One end of the first spring 33 is located in the connecting groove 321, and the connecting groove 321 forms a radial limit on the first spring 33.
[0052] This design makes it less likely for the first spring to shift radially, thus ensuring the stability of the drive component's movement and extending the spring's lifespan.
[0053] When the sampling element 4 is in the second position, the sampling element 4 abuts against the limiting sleeve 6.
[0054] With this setting, the limiting sleeve helps to form a mark at the second position of the sampling piece, making it accurately positioned. The material can accurately enter the sampling bottle from the sampling slot, and it is not easy to move excessively and cause material to fall and be wasted.
[0055] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.
Claims
1. An online sampling structure, comprising a sampling pipe (1) connected to a cylinder body, the sampling pipe (1) having a central cavity (11) communicating with the interior of the cylinder body, and a sampling bottle (2) connected to the central cavity (11) disposed on the sampling pipe (1), characterized in that: The sampling pipe (1) is also equipped with a driving component (3) and a sampling component (4). The sampling component (4) has a sampling groove (41) radially arranged at a position on its circumference. The driving component (3) connects to the sampling component (4) and drives the sampling component (4) to move axially along the sampling pipe (1) and rotate around its own center, so that the sampling component (4) has a first position in which at least part of the sampling groove (41) is located outside the sampling pipe (1) and facing the discharge direction, and a second position in which the sampling groove (41) is located inside the sampling pipe (1) and opposite to the inlet position of the sampling bottle (2).
2. The online sampling structure according to claim 1, characterized in that: The outer periphery of the sampling component (4) is adapted to the inner periphery of the sampling pipe (1) and forms a sealed fit.
3. The online sampling structure according to claim 1, characterized in that: The central cavity (11) includes a first hole (111) and a second hole (112) connected in the direction from near the cylinder body to away from the cylinder body. The diameter of the first hole (111) is larger than the diameter of the second hole (112) and a first limiting step (113) is formed between them. When the sampling member (4) is in the second position, the sampling member (4) abuts against the first limiting step (113).
4. The online sampling structure according to claim 3, characterized in that: When the sampling element (4) is in the second position, the end of the sampling element (4) near the cylinder is flush with the port of the sampling pipe (1) near the cylinder.
5. The online sampling structure according to claim 1, characterized in that: The driving component (3) is coaxially arranged with the sampling component (4), with one end of the driving component (3) fixedly connected to the sampling component (4) and the other end of the driving component (3) fixed with a rotating handle (5).
6. The online sampling structure according to claim 5, characterized in that: The rotation handle (5) and the sampling slot (41) are aligned in the same radial direction.
7. The online sampling structure according to claim 1, characterized in that: The sampling pipe (1) has a limiting sleeve (6) fixed on its inner circumference. The limiting sleeve (6) has a limiting channel (61) that is adapted to the shape of the driving member (3) and forms a sliding fit with it. One end of the driving member (3) passes through the limiting channel (61) and is connected to the sampling member (4).
8. The online sampling structure according to claim 7, characterized in that: The drive member (3) includes a drive rod portion (31) and a connecting portion (32) coaxially arranged and connected in the direction from near the cylinder body to away from the cylinder body. The limiting channel (61) includes a first limiting hole (611) that is adapted to the shape of the drive rod (31) and forms a sliding fit, and a second limiting hole (612) that is adapted to the shape of the connecting part (32) and forms a sliding fit. The diameter of the first limiting hole (611) is smaller than the diameter of the second limiting hole (612) and forms a second limiting step (613) with it. When the sampling member (4) is in the first position, the connecting part (32) abuts against the second limiting step (613). A first spring (33) sleeved on the drive rod (31) is connected between the second limiting step (613) and the connecting part (32). The drive member (3) compresses the first spring (33) to drive the sampling member (4) to move axially along the sampling pipe (1) to the first position and move the sampling member (4) to the second position under the restoring force of the first spring (33).
9. The online sampling structure according to claim 8, characterized in that: The connecting part (32) has a connecting groove (321) with a diameter larger than that of the driving rod part (31) at one end near the driving rod part (31). The driving rod part (31) passes through the bottom of the connecting groove (321) and is fixed thereto. One end of the first spring (33) is located in the connecting groove (321), and the connecting groove (321) forms a radial limit on the first spring (33).
10. The online sampling structure according to claim 7, characterized in that: When the sampling element (4) is in the second position, the sampling element (4) abuts against the limiting sleeve (6).