Sealed pressure-resistant multi-petal electromagnetic sampling claw

Abstract

The utility model is used for chemical sampling analysis technical field, disclose a kind of sealed pressure-resistant multi-petal formula electromagnetic sampling claw, including sealing valve, the one side of sealing valve is fixedly connected with closed container, and the other side of sealing valve is fixedly connected with sealing sleeve, the one end outside surface of second probe rod connecting end and first probe rod connecting end connection is provided with joint sealing ring, the one end inside surface of sealing sleeve and first probe rod connecting end connection is provided with probe rod sealing ring.The sealed pressure-resistant multi-petal formula electromagnetic sampling claw, by sealing valve, closed container and sealing sleeve form basic sealing barrier, break the direct communication of outside environment and sampling system, prevent air, dust and other pollutants from invading, joint sealing ring and probe rod sealing ring are respectively arranged at the connecting place of second probe rod connecting end and first probe rod connecting end, the connecting place of sealing sleeve and first probe rod connecting end, ensure that probe rod still maintains good sealability when rotating or telescoping.

Description

Technical Field

[0001] This utility model relates to the field of chemical sampling and analysis technology, specifically a sealed, pressure-resistant, multi-lobed electromagnetic sampling claw. Background Technology

[0002] In the chemical industry, sealed pressure vessels are widely used for storing and transporting various substances. During the experimentation, production, transportation, and use of these substances, sampling and analysis are crucial steps to ensure product quality, monitor the production process, and ensure the safe operation of equipment. For example, in the chemical field, studying solid substances in reactions is essential for tracking the reaction process and explaining its mechanisms. In the petroleum and chemical industry, it is necessary to regularly analyze the media in various pressure vessels such as storage tanks. However, for some ultra-high pressure sealed containers without external pressurization interfaces, due to their special structure, sampling is easily contaminated by external air, making sampling difficult. Moreover, small or micro reactors have limited volume and very little solid matter in the container, making it difficult to obtain sufficient samples for analysis using conventional sampling methods. At the same time, existing sampling methods are susceptible to contamination from external air and dust during operation, affecting the accuracy of the test results.

[0003] Currently, the method for live sampling of pressure vessels typically involves welding sampling pipes and installing valves at the corresponding heights of the medium inside the vessel during construction. This method suffers from several drawbacks: the sampling height is fixed, preventing sampling at arbitrary heights; changes in the medium's volume and position within the vessel lead to inaccurate sampling; and for high-viscosity or high-solids-content reaction systems, existing single-position sampling valves cannot accurately sample at different depths, potentially contaminating the entire reaction system. Improper operation during sampling can also cause sample leakage, resulting in sample loss and posing a threat to the health and safety of operators. Furthermore, some sampling devices require complex operating procedures and specialized skills, increasing the difficulty and risk of operation. Utility Model Content

[0004] The purpose of this invention is to provide a sealed, pressure-resistant, multi-lobed electromagnetic sampling claw to solve the problems mentioned in the background art, such as susceptibility to external contamination, insufficient sampling volume, inability to accurately sample media at any height, and complex operation posing safety risks when sampling sealed pressure containers.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sealed, pressure-resistant, multi-lobed electromagnetic sampling claw, comprising a sealing valve, a sealed container fixedly connected to one side of the sealing valve, and a sealing sleeve fixedly connected to the other side of the sealing valve, a sampling barrel disposed inside the sealing sleeve, a rotating strong magnetic claw mounted on the end of the sampling barrel facing the sealing valve, and an electromagnetic coil fixedly mounted inside the end of the sampling barrel with the strong magnetic claw, a storage cavity being opened inside the sampling barrel, a first probe connecting end fixedly connected to the end of the sampling barrel facing the outside of the sealing sleeve, a second probe connecting end rotatably connected to the other end of the first probe connecting end, a handle fixedly mounted on one end of the second probe connecting end, a battery pack fixedly mounted inside the second probe connecting end, and a controller fixedly mounted on the back of the second probe connecting end, a joint sealing ring disposed on the outer surface of the end of the second probe connecting end connected to the first probe connecting end, and a probe sealing ring disposed on the inner surface of the end of the sealing sleeve connected to the first probe connecting end;

[0006] An electric push rod is fixedly installed at one end of the second probe connecting end that is connected to the first probe connecting end, and a rotating connecting rod is installed on the outer surface of the other end of the first probe connecting end that is connected to the second probe connecting end.

[0007] Preferably, the magnetic poles of the strong magnetic claws facing the inside of the sampling barrel are the same, and the outer surfaces of adjacent strong magnetic claws are in contact with each other.

[0008] Using the above technical solution, when the electromagnetic coil is not energized, the strong magnetic claw tends to open due to the repulsion of like poles on the inside; when energized, it closes by electromagnetic attraction, and the opening and closing states can be precisely controlled.

[0009] Preferably, the strong magnetic claw is connected to the sampling bucket via a hinge, and the outer surfaces of two adjacent strong magnetic claws that are in contact with each other are provided with sealing strips.

[0010] Using the above technical solution, the hinge connection allows the strong magnetic claw to rotate flexibly, and the opening and closing are achieved by switching the electromagnetic coil on and off. When adjacent strong magnetic claws are closed, the outer sealing strip is squeezed to form a tight seal, which effectively prevents solid samples from leaking during gripping and storage.

[0011] Preferably, the first probe connecting end is slidably and frictionally connected to the sealing sleeve via a probe sealing ring.

[0012] Using the above technical solution, the probe sealing ring forms a dynamic sliding seal with the inner wall of the sealing sleeve during the extension and retraction of the first probe connection end, ensuring that the system remains sealed when the sampling claw is adjusting the depth, thus preventing the intrusion of external contaminants.

[0013] Preferably, the battery pack, controller, electric actuator, and electromagnetic coil are electrically connected by wires.

[0014] Using the above technical solution, the battery pack powers the system, and the operator can remotely control the extension and retraction of the electric push rod and the on / off state of the electromagnetic coil through the controller, thereby realizing the automated operation of adjusting the sampling claw angle and opening and closing the strong magnetic claw, reducing the difficulty of operation and safety risks.

[0015] Preferably, one end of the connecting rod is rotatably connected to one end of the electric push rod by a pin, and the pin rotatably connected to the first probe rod connection end is eccentrically set to the shaft connecting the first probe rod connection end and the second probe rod connection end.

[0016] Using the above technical solution, when the electric push rod extends or retracts, it drives the connecting rod to move through the pin. Due to the eccentric setting, the movement of the connecting rod is converted into an angle change between the first probe connecting end and the second probe connecting end, thereby driving the sampling bucket to swing precisely, realizing the positioning and sampling of media at any height in the pressure vessel, and solving the problem of fixed height of traditional sampling valves.

[0017] Compared with the prior art, the beneficial effects of this utility model are: the sealed, pressure-resistant, multi-lobed electromagnetic sampling claw:

[0018] 1. A basic sealing barrier is formed by sealing valves, sealed containers and sealing sleeves to block the direct connection between the external environment and the sampling system, and to prevent pollutants such as air and dust from entering. The joint sealing ring and the probe sealing ring are respectively set at the connection between the second probe connection end and the first probe connection end, and at the connection between the sealing sleeve and the first probe connection end. Through dynamic sealing design, it is ensured that the probe maintains good sealing performance when it rotates or extends.

[0019] 2. The outer surfaces of adjacent strong magnetic claws are in contact with each other and are equipped with sealing strips. When the strong magnetic claws are closed, the strips are squeezed to form a tight seal to prevent solid sample leakage. They are connected to the sampling bucket through hinges. The inner magnetic poles of adjacent strong magnetic claws are the same, generating a repulsive force. The outer surfaces are in contact to form a claw-like structure. When the electromagnetic coil is energized, a magnetic field is generated to control the opening and closing of the strong magnetic claws. It can adaptively grasp samples of different shapes, and is especially suitable for deep sampling of high viscosity or high solid content systems.

[0020] 3. The battery pack and controller power the extension and retraction of the electric push rod, which drives the first probe connecting end to rotate relative to the second probe connecting end through the connecting rod, thereby realizing the angle adjustment of the sampling claw and accurately positioning the medium at any height inside the container. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the overall cross-sectional three-dimensional structure of this utility model;

[0023] Figure 3This is a three-dimensional structural diagram of the cross-sectional view connecting the sampling bucket, strong magnetic claw, and electromagnetic coil of this utility model.

[0024] Figure 4 This is a three-dimensional structural diagram of the sampling bucket, strong magnetic claw, and storage cavity of this utility model in their connected and unfolded state.

[0025] Figure 5 This is a three-dimensional structural diagram of the first probe connecting end, electric push rod, and connecting rod connection of this utility model;

[0026] Figure 6 This is a three-dimensional structural diagram of the first probe connecting end, electric push rod and connecting rod of this utility model in working state.

[0027] In the diagram: 1. Sealing valve; 2. Sealed container; 3. Sealing sleeve; 4. Sampling bucket; 5. Strong magnetic claw; 6. Electromagnetic coil; 7. Storage chamber; 8. First probe connection end; 9. Second probe connection end; 10. Handle; 11. Battery pack; 12. Controller; 13. Joint sealing ring; 14. Probe sealing ring; 15. Electric push rod; 16. Connecting rod. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1-6 This utility model provides a technical solution: a sealed, pressure-resistant, multi-lobed electromagnetic sampling claw.

[0030] Example 1: This example discloses: a sealing valve 1, a sealed container 2 fixedly connected to one side of the sealing valve 1, and a sealing sleeve 3 fixedly connected to the other side of the sealing valve 1. A sampling bucket 4 is provided inside the sealing sleeve 3, and a rotating strong magnetic claw 5 is installed at the end of the sampling bucket 4 facing the sealing valve 1. An electromagnetic coil 6 is fixedly installed inside the end of the sampling bucket 4 where the strong magnetic claw 5 is installed. A storage cavity 7 is opened inside the sampling bucket 4. One end of a first probe connecting end 8 is fixedly connected to the end of the sampling bucket 4 facing the outside of the sealing sleeve 3, and a second probe connecting end 9 is rotatably connected to the other end of the first probe connecting end 8. A handle 10 is fixedly installed at one end of the second probe connecting end 9. A battery pack 11 is fixedly installed inside the second probe connecting end 9, and a controller 12 is fixedly installed on the back of the second probe connecting end 9. A joint sealing ring 13 is provided on the outer surface of the end of the second probe connecting end 9 that connects to the first probe connecting end 8, and a probe sealing ring 14 is provided on the inner surface of the end of the sealing sleeve 3 that connects to the first probe connecting end 8.

[0031] The magnetic poles of the strong magnetic claws 5 facing the inside of the sampling barrel 4 are the same, and the outer surfaces of adjacent strong magnetic claws 5 are in contact.

[0032] The strong magnetic claw 5 is connected to the sampling bucket 4 via a hinge, and the outer surfaces of two adjacent strong magnetic claws 5 that are in contact with each other are provided with sealing strips.

[0033] The first probe connecting end 8 is slidably and frictionally connected to the sealing sleeve 3 through the probe sealing ring 14;

[0034] The sealing valve 1, the sealed container 2, and the sealing sleeve 3 form a three-layer physical barrier to block direct contact between external air, dust, and the sampling system. The joint sealing ring 13 and the probe sealing ring 14 adopt a dynamic sealing design. When the first probe connection end 8 and the second probe connection end 9 rotate, the joint sealing ring 13 fills the gap through elastic deformation. During the extension and retraction of the probe, the probe sealing ring 14 forms a sliding friction seal with the inner wall of the sealing sleeve 3, ensuring that the system is always in a sealed state during the sampling process by holding the handle 10. The battery pack 11 provides power to the controller 12, the electromagnetic coil 6, and the electric push rod 15. The controller 12 controls the electromagnetic coil 6 and the electric push rod 15.

[0035] The strong magnetic claw 5 is connected to the sampling container 4 via a hinge. The inner magnetic poles of adjacent claws are the same. When the electromagnetic coil 6 is not energized, it tends to open due to the repulsion of like poles. When the electromagnetic coil 6 is energized, it attracts the strong magnetic claw 5, causing the strong magnetic claw 5 to close. The opening and closing of the strong magnetic claw 5 can be precisely controlled by turning the electromagnetic coil 6 on and off. Sealing strips are set on the outer contact surfaces of adjacent strong magnetic claws 5. When closed, the strips are squeezed to form a seal, preventing solid sample leakage. The storage cavity 7 provides space for the sample. Together with the gripping action of the strong magnetic claw 5, it realizes the efficient collection of micro-samples.

[0036] Example 2: This example discloses, based on Example 1, that an electric push rod 15 is fixedly installed at one end of the second probe connecting end 9 that is connected to the first probe connecting end 8, and a rotating connecting rod 16 is installed on the outer surface of the end of the first probe connecting end 8 that is connected to the second probe connecting end 9.

[0037] The battery pack 11, controller 12, electric push rod 15 and electromagnetic coil 6 are electrically connected by wires;

[0038] One end of the connecting rod 16 is rotatably connected to one end of the electric push rod 15 by a pin, and the pin that rotatably connects the connecting rod 16 to the first probe rod connection end 8 and the shaft that connects the first probe rod connection end 8 and the second probe rod connection end 9 are eccentrically set.

[0039] Battery pack 11 supplies power to controller 12, electric push rod 15 and electromagnetic coil 6. The operator sends a command through controller 12, and electric push rod 15 begins to extend and retract. Electric push rod 15 drives connecting rod 16 to move through pin. Since the rotating pin of connecting rod 16 and the first probe connection end 8 is eccentrically set, the movement of connecting rod 16 is converted into an angle change of the first probe connection end 8 relative to the second probe connection end 9, thereby driving the sampling bucket 4 to swing. This mechanism realizes the angle adjustment of the sampling claw in space, which can accurately locate the medium position at any height in the pressure vessel, solving the problem of fixed height of traditional sampling valves.

[0040] When sampling is required at a certain depth, the sampling claw is first inserted into the container using the handle 10. The angle of the sampling bucket 4 is adjusted using the electric push rod 15 so that the strong magnetic claw 5 is aligned with the target sample. Then, the electromagnetic coil 6 is de-energized and energized, and the strong magnetic claw 5 opens and then closes to grasp the sample. After the strong magnetic claw 5 closes, it is sealed by the sealing strip. Finally, the probe is retracted and the sealing valve 1 is closed to complete the sampling. The whole process does not require complicated operation and reduces the risk of sample leakage.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sealed, pressure-resistant, multi-lobed electromagnetic sampling claw, comprising a sealing valve (1), wherein a sealed container (2) is fixedly connected to one side of the sealing valve (1), and a sealing sleeve (3) is fixedly connected to the other side of the sealing valve (1), characterized in that: The sealing sleeve (3) is equipped with a sampling bucket (4), and a rotating strong magnetic claw (5) is installed on the end of the sampling bucket (4) facing the sealing valve (1). An electromagnetic coil (6) is fixedly installed inside the end of the sampling bucket (4) where the strong magnetic claw (5) is installed. A storage cavity (7) is opened inside the sampling bucket (4). One end of the first probe connecting end (8) is fixedly connected to the end of the sampling bucket (4) facing the outside of the sealing sleeve (3), and the other end of the first probe connecting end (8) is rotatably connected to the second probe connecting end. The second probe connection end (9) is fixedly installed with a handle (10) at one end, a battery pack (11) is fixedly installed inside the second probe connection end (9), and a controller (12) is fixedly installed on the back of the second probe connection end (9). A joint sealing ring (13) is provided on the outer surface of the end of the second probe connection end (9) that is connected to the first probe connection end (8), and a probe sealing ring (14) is provided on the inner surface of the end of the sealing sleeve (3) that is connected to the first probe connection end (8).

2. The sealed, pressure-resistant, multi-lobed electromagnetic sampling claw according to claim 1, characterized in that: An electric push rod (15) is fixedly installed at one end of the second probe connecting end (9) that is connected to the first probe connecting end (8), and a rotating connecting rod (16) is installed on the outer surface of the end of the first probe connecting end (8) that is connected to the second probe connecting end (9).

3. The sealed, pressure-resistant, multi-lobed electromagnetic sampling claw according to claim 1, characterized in that: The magnetic poles of the strong magnetic claws (5) facing the inside of the sampling barrel (4) are the same, and the outer surfaces of adjacent strong magnetic claws (5) are in contact with each other.

4. The sealed, pressure-resistant, multi-lobed electromagnetic sampling claw according to claim 1, characterized in that: The strong magnetic claw (5) is connected to the sampling bucket (4) via a hinge, and the outer surfaces of two adjacent strong magnetic claws (5) that are in contact with each other are provided with sealing strips.

5. The sealed, pressure-resistant, multi-lobed electromagnetic sampling claw according to claim 1, characterized in that: The first probe connecting end (8) is connected to the sealing sleeve (3) by sliding friction through the probe sealing ring (14).

6. The sealed, pressure-resistant, multi-lobed electromagnetic sampling claw according to claim 2, characterized in that: The battery pack (11), controller (12), electric push rod (15) and electromagnetic coil (6) are electrically connected by wires.

7. The sealed, pressure-resistant, multi-lobed electromagnetic sampling claw according to claim 2, characterized in that: One end of the connecting rod (16) is rotatably connected to one end of the electric push rod (15) by a pin, and the pin that rotatably connects the connecting rod (16) to the first probe rod connection end (8) and the shaft that connects the first probe rod connection end (8) and the second probe rod connection end (9) are eccentrically set.

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