Full length sampling probe with bottom switch

Abstract

The utility model discloses a full -range sampling sampler with bottom switch, include: sampling cylinder, and its bottom coaxially detachable communication has the connecting cylinder, bottom switch, it includes fixed groove, spring core, sealing cover, the fixed groove is far from the one end of notch and is inserted into the connecting cylinder in the connecting cylinder bottom end sealing, is equipped with with the liquid inlet hole of communicating with the connecting cylinder on the fixed groove, the fixed end of spring core is connected with the groove bottom in the fixed groove, and the pressing end is connected with sealing cover, wherein, when pressing spring core to first state, sealing cover seals the fixed groove notch, when pressing spring core to second state, sealing cover opens the fixed groove notch. The utility model has the beneficial effect that the problem of sometimes not comprehensive sampling caused by human factor when taking full -range sample sometimes not comprehensive and leading to the problem of not comprehensive sampling is reduced.

Description

Technical Field

[0001] This utility model relates to the field of grain and oil sampling equipment. More specifically, this utility model relates to a full-process sampling sampler with a bottom switch. Background Technology

[0002] Currently, when full-process sampling of oil tankers is required, a full-process sampler is typically used. Existing full-process sampling devices for oil tankers usually include a sampling cylinder with a one-way valve at the bottom. In use, the end with the one-way valve is inserted into the oil tanker, and the oil sample enters the sampling cylinder through the one-way valve. Once the required depth is reached, the sampling cylinder is lifted, and the one-way valve automatically closes, thus obtaining the oil sample. For example, patent CN212539811U discloses a sampler for manual sampling of oil throughout the entire sampling process. However, when using this type of full-process sampler, the operator relies on experience to lower the sampler until the one-way valve end is close to the bottom wall of the oil tanker, or until the one-way valve is in contact with the bottom wall. This presents a problem: operators, especially inexperienced operators, may lift the sampler before it is fully lowered to the bottom wall, resulting in incomplete sampling. Utility Model Content

[0003] One object of this invention is to solve at least the problems described above and to provide at least the advantages that will be explained later.

[0004] Another objective of this invention is to provide a full-process sampling sampler with a bottom switch. By setting up a sampling cylinder, a connecting cylinder, and a bottom switch, the bottom switch can only be closed when the bottom switch contacts the bottom wall of the tanker truck and an external force is applied to the sampling cylinder and transmitted to the bottom switch. This ensures that the entire sample is obtained. Compared with the prior art, this invention minimizes the problem of incomplete bottom sampling caused by human factors when taking full-process samples.

[0005] To achieve these objectives and other advantages according to the present invention, a full-range sampling sampler with a bottom switch is provided, comprising:

[0006] The sampling tube has a coaxially detachable connecting tube at its bottom;

[0007] The bottom switch includes a fixing groove, a spring-loaded core, and a sealing cap. The end of the fixing groove away from the groove opening is sealed and inserted into the connecting cylinder from the bottom end of the connecting cylinder. The fixing groove has an inlet hole that communicates with the connecting cylinder. The fixed end of the spring-loaded core is connected to the bottom of the fixing groove, and the pressing end is connected to the sealing cap.

[0008] Specifically, when the bouncing core is pressed to the first state, the sealing cover seals the opening of the fixing groove; when the bouncing core is pressed to the second state, the sealing cover opens the opening of the fixing groove.

[0009] Preferably, the sampling tube is made of a transparent material.

[0010] Preferably, the fixing groove includes a trapezoidal circular groove, a cylinder, and an annular cover plate that are coaxially connected from top to bottom. The top of the trapezoidal circular groove is the small diameter end. The outer wall of the cylinder is coaxially provided with a sealing ring so that the cylinder is coaxially and sealed to the connecting cylinder. The inner ring of the annular cover plate forms a groove, and the outer diameter of the annular cover plate is larger than the inner diameter of the connecting cylinder.

[0011] The trapezoidal groove has multiple liquid inlet holes arranged around its circumferential outer wall.

[0012] Preferably, the top of the connecting cylinder is sealed with an internal threaded connector, and the sampling cylinder is threadedly sealed to the internal threaded connector.

[0013] Preferably, the sampling tube is made of transparent acrylic material.

[0014] Preferably, the connecting cylinder is made of PVC.

[0015] Preferably, the outer diameter of the annular cover plate is larger than the outer diameter of the connecting cylinder.

[0016] This utility model has at least the following beneficial effects:

[0017] By setting up a connecting cylinder, a sampling cylinder, and a bottom switch (including a fixing groove, a spring-loaded core, and a sealing cap), the sealing cap can only close the fixing groove opening when the sealing cap contacts the bottom wall of the tanker truck and an external force is applied to the sampling cylinder, indirectly pressing the pressing end of the spring-loaded core. Only then can the sampling cylinder be lifted. Compared with the full-process sampler in the prior art, the full-process sampler of this invention can take oil samples comprehensively, and the full-process sampling is more comprehensive, minimizing the problem of incomplete sampling caused by human factors.

[0018] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a full-process sampling sampler with a bottom switch, according to one of the technical solutions of this utility model.

[0020] Reference numerals in the attached diagram: 1-Sampling cylinder; 2-Connecting cylinder; 3-Internal threaded connector; 4-Fixing groove; 401-Trapezoidal groove; 402-Cylinder; 403-Annular cover plate; 5-Bouncing core; 6-Sealing cover; 7-Liquid inlet hole; 8-Sealing ring. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0022] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0023] like Figure 1 As shown, this utility model provides a full-process sampling sampler with a bottom switch, comprising:

[0024] The sampling cylinder 1 has a connecting cylinder 2 that is coaxially and detachably connected to its bottom.

[0025] The bottom switch includes a fixing groove 4, a spring core 5, and a sealing cover 6. The end of the fixing groove 4 away from the groove opening is sealed and inserted into the connecting cylinder 2 from the bottom end. The fixing groove 4 is provided with a liquid inlet hole 7 communicating with the connecting cylinder 2. The fixed end of the spring core 5 is connected to the bottom of the fixing groove 4, and the pressing end is connected to the sealing cover 6.

[0026] When the bouncing core 5 is pressed to the first state, the sealing cover 6 seals the opening of the fixing groove 4; when the bouncing core 5 is pressed to the second state, the sealing cover 6 opens the opening of the fixing groove 4.

[0027] In the above technical solution, the sampling cylinder 1 is a long, vertical cylinder, and a connecting cylinder 2 is detachably connected to the bottom of the sampling cylinder 1. The connecting cylinder 2 is coaxial with the sampling cylinder 1 and internally connected. The bottom switch includes a fixing groove 4, a spring core 5, and a sealing cover 6. The connecting cylinder 2, the fixing sleeve, the spring core 5, and the sealing cover 6 are coaxially arranged. The opening of the fixing groove 4 faces downward, and one end of the fixing groove 4 away from the opening extends into the connecting cylinder 2 from the bottom of the connecting cylinder 2. At the same time, a sealing ring 8 is coaxially provided on the outer circumferential wall of the fixing groove 4 inside the connecting cylinder 2 to make the fixing groove 4 and the connecting cylinder 2 sealed together. Preferably, an annular groove is provided on the outer circumferential wall of the fixing groove 4, and the sealing ring is provided on the annular groove.

[0028] The fixing groove 4 has a liquid inlet hole 7 to allow the inner cavity of the fixing groove 4 to communicate with the inside of the connecting cylinder 2. A spring-loaded core 5 is coaxially arranged inside the fixing groove 4. Specifically, the fixed end of the spring-loaded core 5 is connected to the bottom wall of the inner groove of the fixing groove 4, and the pressing end faces downwards. The fixed end of the spring-loaded core 5 is the end furthest from the pressing end. A sealing cap 6 is coaxially connected to the pressing end of the spring-loaded core 5. The sealing cap 6 is adapted to the opening of the fixing groove 4 so that when the sealing cap 6 is pressed to the first state, the bottom switch is closed, that is, the sealing cap 6 seals the opening of the fixing groove 4. When the sealing cap 6 is pressed to the second state... When the bottom switch is opened, the sealing cover 6 disengages from the groove of the fixing groove 4. The bouncing core 5 is a common mechanical part in this field, such as the bouncing mechanism / bouncing inner core in a washbasin drainer. In actual use, the bouncing core 5 of the brand Submarine and model KS78-0122 can be selected. In addition, there are various ways to set the bouncing core 5 and the liquid inlet hole 7 on the fixing groove 4. One example is as follows: If the fixing groove 4 is cylindrical, the fixed end of the bouncing core 5 is coaxially installed on the inner bottom wall of the fixing groove 4. There can be multiple liquid inlet holes 7, which can be evenly arranged around the inner bottom wall of the fixing groove 4 at a position away from the bouncing core 5.

[0029] In this technical solution, when it is necessary to take a full sample during use, first press the sealing cover 6, open the bottom switch, so that the opening of the fixed groove 4 is connected to the sampling tube 1 through the liquid inlet 7 and the connecting tube 2. Then, the entire sampler is vertically lowered into the tanker truck with the bottom switch facing down. It first contacts the oil sample. As the sampler is lowered, the oil sample enters the fixed groove 4 from the opening of the bottom fixed groove 4 and finally enters the sampling tube 1. After the sealing cover 6 contacts the bottom wall of the tanker truck, force is applied to the top of the sampling tube 1 to seal the opening of the fixed groove 4 with the sealing cover 6. At this time, the bottom switch is closed, and then the sampler can be lifted.

[0030] The beneficial effect of this technical solution is that, by setting up a connecting cylinder 2, a sampling cylinder 1, and a bottom switch (including a fixing groove 4, a spring-loaded core 5, and a sealing cover 6), only when the sealing cover 6 contacts the inner bottom wall of the tanker truck and an external force is applied to the sampling cylinder 1, and this external force is transmitted to the pressing end of the spring-loaded core 5, indirectly pressing the pressing end of the spring-loaded core 5, can the sealing cover 6 close the opening of the fixing groove 4, and only then can the sampling cylinder 1 be lifted. Compared with the existing full-process sampler, the operator no longer needs to rely on experience or guesswork to judge the sampling progress. The new full-process sampler can obtain comprehensive samples throughout the entire process, minimizing the problem of incomplete sampling caused by human factors, and ensuring the integrity and accuracy of the sampling. At the same time, the bottom switch simplifies the operation steps for obtaining full-process samples, saving time and labor costs. In addition, in order to ensure that the bottom switch can be closed smoothly when pressing the sealing cover 6, the sampling cylinder 1 should be kept as vertical as possible when lowering it into the tanker truck for sampling, so as to facilitate the transmission of force. Therefore, the full-process sampler of this utility model is more accurate and representative of the full-process sampling.

[0031] In another technical solution, the sampling cylinder 1 is made of a transparent material. The advantages of this solution are that the transparent design allows operators to observe the oil sample in real time, promptly detect anomalies such as abnormal color or layering, and take appropriate measures to ensure that the sample accurately reflects the true condition of the tested object. Furthermore, the transparent appearance makes the entire process readily visible, greatly reducing operational difficulty and error rates. Additionally, the transparent design facilitates observation of whether solidified oil sample adheres to the inner wall of the sampling cylinder 1. If solidified oil sample is present, it can be cleaned immediately. Compared to existing sampling cylinders made of opaque materials such as stainless steel, the sampling cylinder 1 of this invention is more convenient and practical. Simultaneously, because it allows for more accurate and convenient sample acquisition, it reduces time wasted due to repeated sampling or unqualified samples, thus significantly improving the overall sampling efficiency.

[0032] In another technical solution, the fixing groove 4 includes a trapezoidal circular groove 401, a cylinder 402, and an annular cover plate 403 that are coaxially connected from top to bottom. The top end of the trapezoidal circular groove 401 is a small diameter end. A sealing ring 8 is coaxially provided on the outer wall of the cylinder 402 so that the cylinder 402 is coaxially and sealed to the connecting cylinder 2. The inner ring of the annular cover plate 403 forms a groove, and the outer diameter of the annular cover plate 403 is larger than the inner diameter of the connecting cylinder 2. A plurality of liquid inlet holes 7 are provided on the circumferential outer wall of the trapezoidal circular groove 401.

[0033] In the above technical solution, the fixing groove 4 includes a trapezoidal circular groove 401, a cylinder 402, and an annular cover plate 403 arranged sequentially from top to bottom. The trapezoidal cylinder 402, the cylinder 402, and the annular cover plate 403 are coaxially arranged and internally connected. The small-diameter end of the trapezoidal circular groove 401 is its top end, the large-diameter end of the trapezoidal circular groove 401 is connected to the top of the cylinder 402, and the bottom of the cylinder 402 is connected to the annular cover plate 403. Preferably, the trapezoidal circular groove 401, the cylinder 402, and the annular cover plate 403 are integrally formed. The inner diameter of the large-diameter end of the trapezoidal cylinder 402, the inner diameter of the cylinder 402, and the inner diameter of the annular cover plate 403 are all the same; wherein, a plurality of liquid inlet holes 7 are evenly spaced on the circumferential sidewall of the trapezoidal groove 401; the sealing ring 8 is provided on the circumferential outer wall of the cylinder 402; the outer diameter of the annular cover plate 403 is larger than the inner diameter of the connecting cylinder 2, so that when the cylinder 402 is sealed and inserted into the connecting cylinder 2, the plate body of the annular cover plate 403 is located outside the connecting cylinder 2, making it convenient for a person to remove the fixing groove 4 from the connecting cylinder 2 by hand using the annular cover plate 403;

[0034] The beneficial effects of adopting this technical solution are as follows: by designing multiple liquid inlet holes 7, the oil sample can be uniformly introduced into the sampling cylinder 1, avoiding deviations caused by local sampling; by designing sealing rings 8, the sealing between the fixing groove 4 and the connecting cylinder 2 is ensured, preventing oil sample leakage; and by designing annular cover plate 403, which is placed over the open bottom of the connecting cylinder 2, the connection between the fixing groove 4 and the connecting cylinder 2 is ensured to be stable, while preventing oil sample overflow.

[0035] In another technical solution, the top of the connecting cylinder 2 is sealed with an internally threaded connector 3, and the sampling cylinder 1 is threadedly and sealed to the internally threaded connector 3. Specifically, the internally threaded connector 3 is T-shaped and has internal threads inside. The outer wall of the cylindrical portion 402 of the internally threaded connector 3 is circumferentially provided with sealing material so that the internally threaded connector 3 is coaxially and sealed to the top of the connecting cylinder 2. The lower part of the sampling cylinder 1 is sealed and screwed onto the internally threaded connector 3. The outer diameter of the top of the internally threaded connector 3 is larger than the outer diameter of the connecting cylinder 2, making it easy for the operator to disassemble the internally threaded connector 3. The beneficial effect of this technical solution is that the top of the connecting cylinder 2 is sealed with an internally threaded connector 3, and the sampling cylinder 1 is sealed to the internally threaded connector 3 through threads, ensuring a detachable connection between the sampling cylinder 1 and the connecting cylinder 2. This facilitates the disassembly and cleaning of the sampling cylinder 1, and the connection is firm and sealed, preventing oil sample leakage.

[0036] In another technical solution, the sampling tube 1 is made of transparent acrylic material. The beneficial effect of adopting this technical solution is that the sampling tube 1 is made of transparent acrylic material, which has good transparency and durability, is easy to observe oil samples and is not easily damaged, and is suitable for long-term use. At the same time, acrylic material is lightweight and corrosion resistant, which is suitable for oil tanker sampling environment.

[0037] In another technical solution, the connecting cylinder 2 is made of PVC material. The beneficial effects of this technical solution are that the connecting cylinder 2 is made of PVC material, which is lightweight and corrosion resistant, and is suitable for oil tanker sampling environments. In addition, PVC material has a low cost, which reduces the manufacturing cost of the equipment and is suitable for large-scale promotion and use.

[0038] In another technical solution, the outer diameter of the annular cover plate 403 is larger than the outer diameter of the connecting cylinder 2. This design allows the outer end of the annular cover plate 403 to extend beyond the connecting cylinder 2, making it easier for a person to operate the annular cover plate 403 and thus remove the fixing groove 4 from the connecting cylinder 2.

[0039] The number of devices and processing capacity described herein are for the purpose of simplifying the description of this utility model. Applications, modifications, and variations of the full-process sampling sampler with a bottom switch of this utility model will be readily apparent to those skilled in the art.

[0040] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A full-range sampling sampler with a bottom switch, characterized in that, include: The sampling tube has a coaxially detachable connecting tube at its bottom; The bottom switch includes a fixing groove, a spring-loaded core, and a sealing cap. The end of the fixing groove away from the groove opening is sealed and inserted into the connecting cylinder from the bottom end of the connecting cylinder. The fixing groove has an inlet hole that communicates with the connecting cylinder. The fixed end of the spring-loaded core is connected to the bottom of the fixing groove, and the pressing end is connected to the sealing cap. Specifically, when the bouncing core is pressed to the first state, the sealing cover seals the opening of the fixing groove; when the bouncing core is pressed to the second state, the sealing cover opens the opening of the fixing groove.

2. The full-range sampling sampler with a bottom switch as described in claim 1, characterized in that, The sampling tube is made of a transparent material.

3. The full-range sampling sampler with a bottom switch as described in claim 1, characterized in that, The fixing groove includes a trapezoidal circular groove, a cylinder, and an annular cover plate that are coaxially connected from top to bottom. The top of the trapezoidal circular groove is the small diameter end. The outer wall of the cylinder is coaxially provided with a sealing ring so that the cylinder is coaxially and sealed to the connecting cylinder. The inner ring of the annular cover plate forms a groove. The outer diameter of the annular cover plate is larger than the inner diameter of the connecting cylinder. The trapezoidal groove has multiple liquid inlet holes arranged around its circumferential outer wall.

4. The full-range sampling sampler with a bottom switch as described in claim 1, characterized in that, The top of the connecting cylinder is sealed with an internal threaded connector, and the sampling cylinder is threadedly sealed to the internal threaded connector.

5. The full-range sampling sampler with a bottom switch as described in claim 2, characterized in that, The sampling tube is made of transparent acrylic material.

6. The full-range sampling sampler with a bottom switch as described in claim 1, characterized in that, The connecting cylinder is made of PVC.

7. The full-range sampling sampler with a bottom switch as described in claim 3, characterized in that, The outer diameter of the annular cover plate is larger than the outer diameter of the connecting cylinder.

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