Powder sampler
Through the combined structure of the inner and outer tubes, combined with the design of the opening and closing diaphragm, tension rope and spring sheet, the problems of the powder sampler in sampling depth and accuracy are solved, and efficient and accurate powder sample sampling is achieved.
Patent Information
- Application Number
- CN202420901354.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-28
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-04-28
AI Technical Summary
It is difficult for existing powder samplers to ensure that the sample reaches a set depth during sampling, and it requires a lot of effort during the sampling process, so the sample is prone to adhere to the inner wall of the sampler, resulting in errors.
Using a combined structure of inner tube and outer tube, the inner tube can slide out of the outer tube, and an open and closed diaphragm is installed at the bottom of the outer tube. Through the cooperation of the tension rope and the spring blade, the inner tube is closed and opened to ensure that the sample reaches a set depth in the inner tube.
Accurate sampling of powder samples is achieved, ensuring that the sample reaches a set depth, reducing the force requirement during the sampling process, improving the convenience of sample cleaning, and reducing sampling errors.
Smart Images
Figure CN222800396U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of powder product sampling, in particular to a powder sampler. Background Art
[0002] Powder samplers are usually used to sample powder products, especially when the bulk density is high, the sampling difficulty is high, and the packaging volume of the sampled product is large. It is an auxiliary device used to reduce the sampling difficulty and improve the sampling accuracy.
[0003] In the prior art, a hollow tube tool of suitable length is usually used for sampling, wherein the end of the tube tool is in the shape of a sharp arrow. When sampling, the sampler inserts the tip into the sample and pushes it downward by force. After reaching a certain depth, the sampler is rotated several times so that the sample can enter the reserved hole. The sampler is then pulled out and the sample in the sampler is poured out, thereby achieving sampling of powdered products.
[0004] In the above technical solution, since the sampling tube is in a semi-closed state, the powder has good fluidity. When sampling the powder, the powder in the upper part of the sampling target will completely fill the sampler, resulting in the sample being unable to enter the interior of the sampler when sampling the lower part of the product, causing certain errors in the sampling structure. At the same time, due to the interaction between the powders, when the sampler is squeezed downward, the sampler needs to spend a lot of force to fully insert the sampler to the bottom for sampling. When the sample is poured out of the sampler for testing, this situation will make it difficult to clean the sample in the sampler, and the sample will adhere to the inner wall of the sampler, causing errors in the next sampling result. Utility Model Content
[0005] The technical problem solved by the utility model is to solve the problem in the prior art that the sample sampling cannot be performed at a set depth.
[0006] The utility model can be implemented through the following technical scheme: a powder sampler, including an inner tube for sampling and an outer tube for supporting the inner tube for sampling, the inner tube and the outer tube are both straight tubes, the output end of the outer tube is provided with an opening and closing diaphragm for limiting the inner tube, and the end of the inner tube can slide out of the outer tube.
[0007] A further technical improvement of the utility model is that an inner handle for supporting the inner tube is installed at the end of the inner tube, and an outer handle for supporting the outer tube is fixed at the end of the outer tube.
[0008] A further technical improvement of the utility model is that the end of the outer tube is beveled to have a sampling fillet for enabling the sampler to enter the powder pile.
[0009] A further technical improvement of the utility model is that the opening and closing diaphragm is rotatably arranged at the sampling fillet position, and a spring sheet for keeping the opening and closing diaphragm separated is fixed on the side wall of the opening and closing diaphragm and the outer tube, a tensioning rope for closing the opening and closing diaphragm is fixed on the opening and closing diaphragm, and the tensioning rope is located at the position of the outer handle.
[0010] A further technical improvement of the utility model is that the inner tube and the outer tube are made of seamless steel tubes, and the inner tube and the outer tube are seamlessly connected.
[0011] Compared with the prior art, the utility model has the following beneficial effects:
[0012] 1. The present application adopts the coordinated use of an inner tube and an outer tube, that is, an inner tube for sampling and an outer tube for supporting the inner tube are used, so that powder can be sampled into the inner tube. At the same time, since the output end of the outer tube is provided with an opening and closing diaphragm for restricting the inner tube, the inner tube can be closed by utilizing the opening and closing diaphragm. When the outer tube reaches a certain height, the opening and closing diaphragm is opened. At this time, the end of the inner tube is used to move out the outer tube, and the outer tube is used to drive the inner tube to move to achieve sampling. In this process, the inner tube can be used to achieve the technical effect of sampling at a set depth, thereby solving the problem that sampling at a set depth cannot be performed in the prior art.
[0013] 2. The present application maintains the opening and closing diaphragm open by the action of a spring sheet, and uses a movable tensioning rope to control the closing of the opening and closing diaphragm, so that when the inner tube is not in use, the tension of the tensioning rope is used to control the inner tube from being sampled. When the inner tube is in use, the elastic force of the spring sheet is used to open the opening and closing diaphragm, so that the inner tube can be used for sampling. This control process is relatively simple and convenient for operators to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.
[0015] Figure 1 It is a front view of the utility model;
[0016] Figure 2 For the utility model Figure 1 A partial enlarged view of the middle A;
[0017] Figure 3 It is a top view of the utility model.
[0018] In the figure: 1. inner tube; 2. inner handle; 3. outer handle; 4. outer tube; 5. tensioning rope; 6. spring sheet; 7. opening and closing diaphragm. DETAILED DESCRIPTION
[0019] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.
[0020] See also Figure 1-3 As shown, a powder sampler includes an inner tube 1 and an outer tube 4, wherein the inner and outer diameters of the inner tube 1 and the outer tube 4 fit together, and when the inner tube 1 enters into the outer tube 4, there is no gap between the inner tube 1 and the outer tube 4. Therefore, the present application realizes sampling and collection of samples by adopting an inner tube 1 that can slide relative to the outer tube 4.
[0021] Specifically, the present application provides an outer handle 3 on the top of the outer tube 4, and welds a circular ring on the input end of the outer tube 4 near the outer handle 3. In order to achieve the fit between the inner tube 1 and the outer tube 4, the side wall of the outer tube 4 is cut off for a certain distance, and the side wall of the inner tube 1 is cut off for a certain distance. In this embodiment, a quarter of the side wall of the outer tube 4 is cut off, and a quarter of the side wall of the inner tube 1 is cut off to facilitate the entry of the sampling powder. At the same time, the inner tube 1 is inserted into the interior of the outer tube 4 and fits tightly with the outer tube 4.
[0022] In order to prevent the inner tube 1 from falling off the outer tube 4, a detachable limiting device is provided at the bottom of the outer tube 4. With the action of the detachable limiting device, it is also convenient to clean the interior of the sampler.
[0023] In order to facilitate sampling, the bottom of the outer tube 4 is beveled to form a rounded corner, which makes it easier for the sampler to be inserted into the sample during sampling. The bottom of the outer tube 4 is cut at a sixty-degree bevel to form a rounded corner, which makes it easier for the sampler to enter the sample.
[0024] In the present application, an inner handle 2 is installed on the top of the inner tube 1, and an outer handle 3 is fixed on the outside of the outer tube 4, wherein the inner handle 2 is located above the outer handle 3, and the inner handle 2 is pushed to control the sliding of the inner tube 1 inside the outer tube 4, that is, when in use, the inner handle 2 is moved downward to allow the inner tube 1 to extend out of the outer tube 4 for sampling. After the sampling is completed, the inner handle 2 is moved upward to allow the inner tube 1 to enter the interior of the outer tube 4 to collect the sample.
[0025] In order to avoid the problem of the sample entering the sampler when the sampler enters the sample at a height where no sampling is required, an opening and closing diaphragm 7 is symmetrically installed at the bottom of the outer tube 4 to cover the output end of the outer tube 4, wherein the opening and closing diaphragm 7 is controlled by a controller. When the controller controls the opening and closing diaphragm 7 to open, sampling can be achieved. When the controller controls the opening and closing diaphragm 7 to close, the inner tube 1 can be protected to avoid powder that does not need to be sampled from entering the inner tube 1, which would affect the accuracy of the test results.
[0026] The controller includes a spring sheet 6 and a tensioning rope 5, wherein an opening and closing diaphragm 7 is rotatably mounted on the outer tube 4, a spring sheet 6 is mounted between the side wall of the outer tube 4 and the opening and closing diaphragm 7, wherein a tensioning rope 5 is fixedly mounted on one end of the opening and closing diaphragm 7 away from the outer tube 4, wherein the other end of the tensioning rope 5 is fixedly mounted on the position of the outer handle 3, when the tensioning rope 5 is not subjected to force, under the action of the spring sheet 6, the opening and closing diaphragms 7 are separated and opened from each other, so that the longitudinal movement sampling of the inner tube 1 can be realized, and when the tensioning rope 5 is manually pulled, the opening and closing diaphragm 7 is brought into contact to realize the closure of the outer tube 4, so that the inner tube 1 after the sampling is completed can be shielded to prevent powder in the non-sampling area from entering the inner tube 1 and affecting the accuracy of the sampling.
[0027] Since the present application adopts a through-pipe shape of inner tube 1 and outer tube 4, after the sampling is completed, the residual powder on the inner tube 1 or the outer tube 4 can be directly blown away by blowing air on the top of the inner tube 1 and the outer tube 4 respectively, so as to facilitate the subsequent use of the inner tube 1 or the outer tube 4 and ensure the accuracy of the next sampling test.
[0028] The outer tube 4 in the present application is a DN25 seamless steel tube with a length of 90 cm. The inner tube 1 is a thin steel tube embedded with the outer tube 4. The inner handle 2 and the outer handle 3 are both 12 cm long. The inner handle 2 and the inner tube 1 are detachably connected, and the inner handle 2 is used to achieve the stretching of the inner tube 1 and the height control of the inner tube 1.
[0029] The installation of the opening and closing diaphragm 7 is to cut a 60-degree side angle at 4 cm from the bottom of the outer tube 4, leaving a side rounded corner, and the opening and closing diaphragm 7 is installed on both sides of the rounded corner. When sampling, after inserting the sampler to the appropriate depth of the sample, open the opening and closing diaphragm 7, press the inner tube 1 downward so that the inner tube 1 can be filled with powder from top to bottom, and then stagger the opening side of the inner tube 1 and the opening of the outer tube 4 to close the sampler. At the same time, pinch the tensioning rope 5 to close the opening and closing diaphragm 7, pull out the sampler, move the inner tube 1 out from the inside of the outer tube 4, pour the sample into the sample storage box, and complete the sampling.
[0030] When the utility model is in use, the outer tube 4 is first inserted into the powder until it is inserted into the appropriate position in the powder, and then the tensioning rope 5 is loosened so that the opening and closing diaphragm 7 is separated under the action of the spring sheet 6. At this time, the inner tube 1 is continued to be moved out of the outer tube 4 by a small distance, and the outer tube 4 is controlled to continue to move. At this time, the powder enters the inner tube 1. After the sampling is completed, the inner tube 1 is moved into the outer tube 4 and the tensioning rope 5 is stressed at the same time, so that the elastic force of the spring sheet 6 is overcome, so that the opening and closing diaphragm 7 is closed. At this time, the inner tube 1 is directly taken out and the sample is poured out. If it is necessary to continue sampling from the current position, the inner tube 1 that has been blown and cleaned by the gas is reinserted into the outer tube 4, and then the sampling operation is continued from the current position.
[0031] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.
Claims
1. A powder sampler, characterized in that: The invention comprises an inner tube (1) for sampling and an outer tube (4) for supporting the inner tube (1) for sampling, wherein the inner tube (1) and the outer tube (4) are both straight tubes, an opening and closing diaphragm (7) for restricting the inner tube (1) is provided at the output end of the outer tube (4), and the end of the inner tube (1) can slide out of the outer tube (4).
2. A powder sampler according to claim 1, characterized in that: An inner handle (2) for supporting the inner tube (1) is installed at the end of the inner tube (1), and an outer handle (3) for supporting the outer tube (4) is fixed at the end of the outer tube (4).
3. A powder sampler according to claim 2, characterized in that: The end of the outer tube (4) is chamfered to form a sampling fillet for enabling the sampler to enter the powder pile.
4. A powder sampler according to claim 3, characterized in that: The opening and closing diaphragm (7) is rotatably arranged at a sampling fillet position, and a spring sheet (6) for maintaining the opening and closing diaphragm (7) separated is fixed to the side wall of the opening and closing diaphragm (7) and the outer tube (4), and a tensioning rope (5) for closing the opening and closing diaphragm (7) is fixed to the opening and closing diaphragm (7), and the tensioning rope (5) is located at the position of the outer handle (3).
5. A powder sampler according to claim 1, characterized in that: The inner tube (1) and the outer tube (4) are made of seamless steel tubes, and the inner tube (1) and the outer tube (4) are seamlessly connected.