A powder sampler

Abstract

This invention discloses a powder sampler, comprising a sampling cylinder, a sliding cover, an indicator, multiple sensors, and multiple control switches. The sampling cylinder has a sampling end and an indicator end located at both ends, and its side wall is provided with a sampling port, with the sampling end being closed. The sliding cover is installed on the sampling cylinder and located at the sampling port, and can move relative to the sampling cylinder to open and close the sampling port. The indicator is installed on the indicator end. Multiple sensors are installed on the sampling cylinder and are spaced apart along the axial direction of the sampling cylinder, and are electrically connected to the indicator. Each sensor can trigger the indicator when it is inserted into the powder. Multiple control switches are respectively located on the electrical connection lines between the multiple sensors and the indicator. This solution can complete quantitative sampling according to actual needs, improving sampling flexibility and convenience. At the same time, since the sampling port can be opened, it is convenient for operators to clean the inner cavity of the sampling cylinder, avoiding residual material left in the sampling cylinder during subsequent sampling and ensuring sampling accuracy.

Description

Technical Field

[0001] This invention relates to a powder sampling device, and more specifically to a powder sampler. Background Technology

[0002] In the production of lithium iron phosphate, to control product quality, sampling ports are usually set up on relevant instruments and equipment to sample and test the materials during the crushing process. Given the toxic and harmful properties of lithium iron phosphate materials and their susceptibility to external interference, samplers are commonly used for auxiliary sampling during the sampling operation.

[0003] For example, patent CN 217953965 U discloses a powder material sampler. The sampler inserts its thermoplastic sealing end into the material, then pulls the outer sampling cylinder away from the thermoplastic sealing end. Once all the powder material has entered the sampling hole, the outer sampling cylinder slides towards the thermoplastic sealing end to completely block the sampling hole. Finally, the entire sampler is pulled out of the powder material, completing the sampling. However, this patent cannot conveniently achieve quantitative sampling; it requires manual adjustment of the sampling amount, which can lead to operational errors and weight inaccuracies. Summary of the Invention

[0004] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a powder sampler that solves the technical problem that existing powder samplers cannot flexibly and conveniently control the amount of sample taken each time.

[0005] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0006] This invention provides a powder sampler, comprising:

[0007] The sampling tube has a sampling end and an indicator end located at both ends, and a sampling port is provided on its side wall, wherein the sampling end is closed;

[0008] A sliding cover, installed on the sampling cylinder and located at the sampling port, and movable relative to the sampling cylinder to open and close the sampling port; and

[0009] An indicator element is installed on the indicator end;

[0010] Multiple sensors are mounted on the sampling cylinder and spaced apart along the axial direction of the sampling cylinder, and are electrically connected to the indicator. Each sensor can trigger the indicator when it is inserted into the powder;

[0011] Multiple control switches are respectively located on the electrical connection lines between the multiple sensors and the indicators, and are used to control the connection and disconnection of the lines between the sensors and the indicators.

[0012] In some embodiments, the sampling cylinder is provided with a groove along its circumference, and the sliding cover is provided with a slide rail corresponding to the groove. The slide rail is slidably disposed in the groove, so that the sliding cover can open and close the sampling port.

[0013] In some embodiments, the sampling port is located between the sampling end and the indicating end, and extends along the axial direction of the sampling cylinder;

[0014] The indicator end extends radially and is provided with a mounting base. The groove is formed on the side of the mounting base near the sampling port, and the indicator is located on the side of the mounting base away from the sampling port.

[0015] In some embodiments, the powder sampler further includes an electromagnet, a magnetic attractor, and an electromagnetic switch. One of the electromagnet and the magnetic attractor is installed on the sampling cylinder, and the other is installed on the sliding cover. When the sliding cover closes the sampling port, the electromagnet can magnetically attract the magnetic attractor to restrict the movement of the sliding cover. The electromagnetic switch is located at the indicator end and is electrically connected to the electromagnet to control the on / off state of the electromagnet.

[0016] In some embodiments, the electromagnet includes an electromagnetic base and an electromagnet main body unit. The electromagnetic base is installed on the sampling cylinder and located on the side of the sampling port away from the sliding cover, and has an adsorption groove on the side near the sliding cover. The electromagnet main body unit is located inside the electromagnetic base and is electrically connected to the electromagnetic switch.

[0017] The magnetic suction component is a magnetic suction base, which is located on the sliding cover. When the sliding cover is in the closed sampling port position, it can extend into the adsorption groove and be magnetically attracted by the electromagnet main body unit.

[0018] In some embodiments, multiple electromagnets are provided, and the multiple electromagnets are spaced apart along the axial direction of the sampling cylinder. Multiple magnetic attracting elements are provided corresponding to the electromagnets, and each magnetic attracting element can be attracted by the corresponding electromagnet.

[0019] In some embodiments, the indicator is a vibration sensor, which includes a light sensor and a comparator. The light sensor is connected to the circuit of the comparator, and the signal output terminal of the comparator is electrically connected to the vibration sensor. When the light sensor is blocked, the comparator can send a signal to the vibration sensor to trigger the vibration sensor.

[0020] The control switch is located on the electrical connection line between the signal output terminal of the comparator and the vibration sensor.

[0021] In some embodiments, the sampling tube and the sliding cover are made of a light-transmitting material, and the probe of the light sensor is located inside the sampling tube.

[0022] In some embodiments, the outer periphery of the sampling cylinder and the sliding cover is provided with anti-slip stripes, and / or, the outer periphery of the sampling cylinder and the sliding cover is provided with a rubber layer.

[0023] In some embodiments, the sampling end is tapered in a direction away from the indicating end to form a tapered drill bit.

[0024] Compared with existing technologies, the powder sampler provided by this invention features multiple sensors spaced apart along the axial direction of the sampling cylinder. This allows the sensors to be positioned according to the capacity of the sampling cylinder along its axial direction. When a specific volume of lithium iron phosphate powder needs to be sampled, the control switch connected to the sensor at that specific volume is kept closed, while the control switches connected to the other sensors are kept open. The sliding cover is then moved to open the sampling port, and the sampling tip is slowly inserted into the lithium iron phosphate powder. The powder, due to its own fluidity, flows from the sampling port into the sampling cylinder. When the lithium iron phosphate powder submerges the sensor, it triggers the indicator at the indicator end. Upon receiving the signal from the indicator, the operator reverses the sliding cover to close the sampling port. The sampling tip is then withdrawn from the lithium iron phosphate powder, completing the quantitative sampling. This allows for quantitative sampling according to actual needs, improving sampling flexibility and convenience. Furthermore, the open sampling port facilitates cleaning of the sampling cylinder's interior, preventing residual material from contaminating the cylinder during subsequent sampling and ensuring sampling accuracy. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the powder sampler (with the sampling port open) provided in an embodiment of the present invention;

[0026] Figure 2 yes Figure 1 A schematic diagram of the powder sampler (with the sampling port open) from another angle;

[0027] Figure 3 yes Figure 2 A schematic diagram of the central sampling cylinder and its sliding cover (when the sampling port is closed);

[0028] Figure 4 yes Figure 3 A partial schematic diagram of the sampling tube;

[0029] Figure 5 yes Figure 3 A schematic diagram of the middle section of the sliding cover;

[0030] Figure 6 yes Figure 1 Enlarged diagram of point A in the middle.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Sampling cylinder; 1a. Sampling port; 11. Sampling end; 12. Indicator end; 13. Mounting base; 13a. Slide groove; 14. Tapered drill bit; 15. Handle; 2. Sliding cover; 21. Slide rail; 3. Indicator; 31. Vibration sensor; 4. Sensor; 41. Light sensor; 5. Electromagnet; 51. Electromagnetic base; 51a. Adsorption groove; 53. Electromagnetic switch; 6. Magnetic component; 61. Magnetic base. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this invention clearer, the invention 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 and not intended to limit the invention.

[0034] To address the technical problem that existing powder samplers cannot flexibly and conveniently control the amount of sample taken each time, this invention provides a powder sampler that can perform quantitative sampling according to actual needs, thereby improving sampling flexibility and convenience.

[0035] Please see Figures 1 to 3 , Figures 1 to 3 This is a schematic diagram of a powder sampler in one embodiment of the present invention. The powder sampler includes a sampling cylinder 1, a sliding cover 2, an indicator 3, multiple sensors 4, and multiple control switches. The sampling cylinder 1 has a sampling end 11 and an indicator end 12 located at both ends, and its side wall is provided with a sampling port 1a, which is closed. The sliding cover 2 is installed on the sampling cylinder 1 and located at the sampling port 1a, and can move relative to the sampling cylinder 1 to open and close the sampling port 1a. The indicator 3 is installed on the indicator end 12. Multiple sensors 4 are installed on the sampling cylinder 1 and are arranged at intervals along the axial direction of the sampling cylinder 1, and are electrically connected to the indicator 3 respectively. Each sensor 4 can trigger the indicator 3 when it is inserted into the powder. Multiple control switches are respectively provided on the electrical connection lines between the multiple sensors 4 and the indicator 3, and are used to control the on / off state of the lines between the sensors 4 and the indicator 3.

[0036] In the powder sampler provided by this invention, multiple sensors 4 are spaced apart along the axial direction of the sampling cylinder 1. This allows the sensors 4 to be positioned according to the capacity of the sampling cylinder 1 along its axial direction. When a specific volume of lithium iron phosphate powder needs to be sampled, the control switch connected to the sensor 4 at the corresponding capacity position is kept closed, while the control switches connected to the other sensors 4 are kept open. Then, the sliding cover 2 is moved to open the sampling port 1a, and the sampling end 11 is slowly inserted into the lithium iron phosphate powder. At this time, the lithium iron phosphate powder, due to its own fluidity, flows from the sampling port 1a into the sampling cylinder 1. When the lithium iron phosphate powder submerges the sensor 4, it triggers the indicator 3 located at the indicator end 12. Upon receiving the signal from the indicator 3, the operator reverses the sliding cover 2 to close the sampling port 1a; then, the sampling end 11 is withdrawn from the lithium iron phosphate powder, completing the quantitative sampling. In this way, quantitative sampling can be completed according to actual needs, improving sampling flexibility and convenience. Meanwhile, since the sampling port 1a can be opened, it is convenient for operators to clean the inner cavity of the sampling tube 1, so as to avoid leaving residual material in the sampling tube 1 and contaminating the material when sampling again, thus ensuring the accuracy of sampling.

[0037] In one embodiment, the sampling cylinder 1 is provided with a groove 13a along its circumference, and the sliding cover 2 is provided with a slide rail 21 corresponding to the groove 13a. The slide rail 21 is slidably disposed in the groove 13a, so that the sliding cover 2 can open and close the sampling port 1a.

[0038] In this embodiment, the sampling port 1a is opened and closed by moving the sliding cover 2 circumferentially along the sampling cylinder 1, making the overall structure relatively compact and avoiding excessive space occupation when the sliding cover 2 is in the open sampling port 1a position, thus improving practicality. Furthermore, the cooperation between the slide rail 21 and the slide groove 13a enhances the stability of the sliding cover 2's movement.

[0039] In one embodiment, please refer to Figures 3 to 5 The sampling port 1a is located between the sampling end 11 and the indicator end 12 and extends along the axial direction of the sampling cylinder 1; the indicator end 12 extends radially and is provided with a mounting seat 13, a groove 13a is formed on the side of the mounting seat 13 near the sampling port 1a, and the indicator 3 is provided on the side of the mounting seat 13 away from the sampling port 1a.

[0040] In this embodiment, the sampling port 1a extends from the sampling end 11 to the indicating end 12, so that when the sampling cylinder 1 is inserted into the lithium iron phosphate powder, the lithium iron phosphate powder flows into the sampling cylinder 1 from the sampling port 1a, achieving rapid sampling. Simultaneously, placing the chute 13a on the lower side of the mounting base 13 effectively prevents powder from entering between the slide rail 21 and the side wall of the chute 13a, thus avoiding contamination during subsequent sampling and ensuring stable movement of the sliding cover 2. Furthermore, in this design, a handle 15 is provided on the side of the mounting base 13 away from the sampling port 1a for easy gripping by the operator.

[0041] In one embodiment, the powder sampler further includes an electromagnet 5, a magnetic chuck 6, and an electromagnetic switch 53. One of the electromagnet 5 and the magnetic chuck 6 is installed in the sampling cylinder 1, and the other is installed in the sliding cover 2. When the sliding cover 2 closes the sampling port 1a, the electromagnet 5 can magnetically attract the magnetic chuck 6 to restrict the movement of the sliding cover 2. The electromagnetic switch 53 is located at the indicator end 12 and is electrically connected to the electromagnet 5 to control the on / off state of the electromagnet 5.

[0042] In this embodiment, when the sliding cover 2 moves to the position of closing the sampling port 1a, the electromagnetic switch 53 is closed, allowing the electromagnet 5 to stably attract the magnetic suction component 6, preventing the sliding cover 2 from accidentally opening during the removal of the sampling cylinder 1 from the powder, thus ensuring sampling stability. It should be noted that the structure and principle of the electromagnet 5 are existing technologies and will not be described in detail here. Furthermore, the electromagnet 5 is equipped with an external power supply. The electromagnetic switch 53 is located on the handle 15.

[0043] In one embodiment, please refer to Figure 3 and Figure 5 The sliding cover 2 is configured as a multi-segment along the axial direction of the sampling cylinder 1, and each segment of the sliding cover 2 moves independently along the circumference of the sampling cylinder 1. At least one movable sliding cover 2 is provided at each sensor 4 location. In one embodiment, each sliding cover 2 is equipped with either an electromagnet 5 or a magnetic attractor 6, and the sampling cylinder 1 is equipped with the other electromagnet 5 or magnetic attractor 6. Another set of slide rails and grooves is provided between adjacent sliding covers 2. Thus, when taking powder, only the sliding cover 2 at the corresponding capacity can be opened, while the other sliding covers 2 are closed, allowing for flexible adjustment of the opening position of the sampling port 1a and precise control of the amount of powder entering the inner cavity of the sampling cylinder 1.

[0044] In one embodiment, please refer to Figure 6 The electromagnet 5 includes an electromagnetic base 51 and an electromagnet main body unit. The electromagnetic base 51 is installed on the sampling cylinder 1 and is located on the side of the sampling port 1a away from the sliding cover 2. An adsorption groove 51a is provided on the side near the sliding cover 2. The electromagnet main body unit is located inside the electromagnetic base 51 and is electrically connected to the electromagnetic switch 53. The magnetic suction component 6 is a magnetic suction base 61. The magnetic suction base 61 is located on the sliding cover 2 and can extend into the adsorption groove 51a when the sliding cover 2 is in the closed sampling port 1a position and is magnetically attracted by the electromagnet main body unit.

[0045] In this embodiment, when the sliding cover 2 closes the sampling port 1a, the magnetic base 61 extends into the adsorption groove 51a, improving the magnetic attraction between the electromagnet main unit and the magnetic base 61, ensuring that the sliding cover 2 can stably close the sampling port 1a. It should be noted that in this design, the electromagnet main unit includes a coil winding and an iron core, and the magnetic base 61 is made of steel. Furthermore, in one embodiment, an electromagnet main unit is provided on each of the opposite sides of the adsorption groove 51a. The sliding cover 2 is also inclined towards the inner side of the sampling cylinder 1 along the direction close to the electromagnetic base 51.

[0046] In one embodiment, multiple electromagnets 5 are provided, and the multiple electromagnets 5 are spaced apart along the axial direction of the sampling cylinder 1. Multiple magnetic attracting elements 6 are provided corresponding to the electromagnets 5, and each magnetic attracting element 6 can be attracted by the corresponding electromagnet 5.

[0047] In this embodiment, multiple electromagnets 5 and multiple magnetic chucks 6 are provided to further improve the stability of the sliding cover 2 when the sampling port 1a is closed. Specifically, in the example in the attached drawings, four electromagnets 5 and four magnetic chucks 61 are provided respectively.

[0048] It should be noted that, in one embodiment, the electromagnetic switch 53 can be configured as a multi-point switch, controlling the magnetic poles of the electromagnet 5 by controlling the on / off position of the electromagnetic switch 53, and the magnetic base 61 is also configured as a magnet. Thus, when the sliding cover 2 is closed, the magnetic base 61 and the electromagnet 5 are attracted to each other in opposite directions. When it is necessary to open the sampling port 1a, the polarities of the magnetic base 61 and the electromagnet 5 are set to repel each other.

[0049] In one embodiment, the indicator 3 is a vibration sensor 31, and the sensor 4 includes a light sensor 41 and a comparator. The light sensor 41 is connected to the circuit of the comparator, and the signal output terminal of the comparator is electrically connected to the vibration sensor 31. When the light sensor 41 is blocked, the comparator can send a signal to the vibration sensor 31 to trigger the vibration sensor 31. The control switch is located on the electrical connection line between the signal output terminal of the comparator and the vibration sensor 31.

[0050] In this embodiment, when the light sensor 41 is blocked by powder, the light shining on the photodiode of the light sensor 41 weakens, the current decreases, the comparator circuit sends a signal, and triggers the vibration sensor 31. When the operator feels the vibration of the vibration sensor 31, they know that the sampling amount has been reached, improving the convenience of sampling. It should be noted that the specific structure and principle of the light sensor 41, comparator, and vibration sensor 31 are existing technologies and will not be described in detail here. In one embodiment, the vibration sensor 31 is provided with an independent power supply to improve stability. In addition, in one embodiment, the side wall of the sampling cylinder 1 is provided with a cavity for the power supply connection wire to pass through.

[0051] In one embodiment, the sampling cylinder 1 and the sliding cover 2 are made of light-transmitting material, and the probe of the light sensor 41 is located inside the sampling cylinder 1.

[0052] In this embodiment, the probe of the light sensor 41 is placed in the inner cavity of the sampling cylinder 1, and the sampling cylinder 1 and the sliding cover 2 are made of light-transmitting material to avoid the sampling height of the inner and outer sides of the sampling cylinder 1 being affected by the uneven surface of the powder, thereby improving the sampling accuracy.

[0053] In one embodiment, the outer periphery of the sampling cylinder 1 and the sliding cover 2 is provided with anti-slip stripes, and / or, the outer periphery of the sampling cylinder 1 and the sliding cover 2 is provided with a rubber layer.

[0054] In this embodiment, by avoiding the provision of anti-slip stripes or rubber layers on the outside of the sampling cylinder 1, the operator can hold the sampling cylinder 1 and slide the cover 2, thereby improving convenience.

[0055] In one embodiment, the sampling end 11 is tapered away from the indicating end 12 to form a tapered drill bit 14.

[0056] In this embodiment, a conical drill bit 14 is provided at the sampling end 11 to reduce the obstruction of the powder to the sampling cylinder 1, making sampling by the sampling cylinder 1 more labor-saving.

[0057] To better understand this invention, the following is combined with... Figures 1 to 6 The technical solution of the present invention will be described in detail below:

[0058] First, multiple photosensitive sensors 41 are arranged at intervals according to the capacity scale positions of the sampling cylinder 1. Before sampling, the electromagnet main unit and magnetic suction base 61 are disconnected, allowing the sliding cover 2 to open the sampling port 1a. Simultaneously, the control switch corresponding to the photosensitive sensor 41 at the desired capacity position is closed, and the control switches at other positions are disconnected. Then, the conical drill bit 14 is slowly inserted into the powder, and the powder enters the inner cavity of the sampling cylinder 1 through the sampling port 1a. When the probe of the photosensitive sensor 41 at the desired capacity is blocked, the vibration sensor 31 receives a signal and vibrates. The operator then stops lowering the conical drill bit 14 and moves the sliding cover 2 to close the sampling port 1a, while simultaneously closing the electromagnetic switch 53 to allow the electromagnet main unit to attract the magnetic suction base 61. The sampling cylinder 1 is then removed from the powder, completing the quantitative sampling. The operation is simple and convenient. Furthermore, after sampling, the sampling port 1a can be completely opened to clean the inner cavity of the sampling cylinder 1, minimizing material residue and reducing the impact of residual material on newly collected material during recycling.

[0059] The specific embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any other corresponding changes and modifications made in accordance with the technical concept of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A powder sampler characterized by, The sampling device comprises: a sampling cylinder having a sampling end and an indicating end at two ends, and a sampling port on the side wall of the sampling cylinder, wherein the sampling end is closed; a sliding cover installed on the sampling cylinder and located at the sampling port, and capable of moving relative to the sampling cylinder to open and close the sampling port; an indicating member installed on the indicating end; a plurality of sensors installed on the sampling cylinder and spaced along the axial direction of the sampling cylinder, and each electrically connected to the indicating member, wherein each sensor is capable of triggering the indicating member when it is inserted into the powder; a plurality of control switches respectively arranged on the electric connection lines between the sensors and the indicating member, for controlling the on-off of the lines between the sensors and the indicating member; the sampling cylinder is provided with a sliding groove along the circumferential direction, and the sliding cover is provided with a sliding rail corresponding to the sliding groove, and the sliding rail is slidingly arranged in the sliding groove, so that the sliding cover can open and close the sampling port; the powder sampler further comprises an electromagnet, a magnetic member and an electromagnetic switch, one of the electromagnet and the magnetic member is installed on the sampling cylinder, and the other is installed on the sliding cover, the electromagnet can magnetically attract the magnetic member when the sliding cover closes the sampling port, so as to limit the movement of the sliding cover, and the electromagnetic switch is arranged on the indicating end and electrically connected to the electromagnet, for controlling the on-off of the electromagnet; the electromagnet comprises an electromagnetic seat and an electromagnet main unit, the electromagnetic seat is installed on the sampling cylinder and located on the side of the sampling port away from the sliding cover, and is provided with an adsorption groove on the side close to the sliding cover, and the electromagnet main unit is arranged in the interior of the electromagnetic seat and electrically connected to the electromagnetic switch; the magnetic member is a magnetic seat, which is arranged on the sliding cover and can be inserted into the adsorption groove when the sliding cover is in the position of closing the sampling port and is magnetically attracted by the electromagnet main unit; a plurality of electromagnets are provided, and the electromagnets are spaced along the axial direction of the sampling cylinder, and a plurality of magnetic members are provided corresponding to the electromagnets, and each magnetic member can be attracted by the corresponding electromagnet. the sampling port is located between the sampling end and the indicating end and extends along the axial direction of the sampling cylinder; the indicating end is provided with a mounting seat extending along the radial direction, the sliding groove is formed on the side of the mounting seat close to the sampling port, and the indicating member is arranged on the side of the mounting seat away from the sampling port.

2. The powder sampler of claim 1, wherein, the indicating member is a vibration sensor, which comprises a light sensor and a comparator, the circuit of the light sensor is connected to the comparator, the signal output end of the comparator is electrically connected to the vibration sensor, and when the light sensor is blocked, the comparator can send a signal to the vibration sensor to trigger the vibration sensor; the control switch is arranged on the electric connection line between the signal output end of the comparator and the vibration sensor.

3. The powder sampler of claim 1, wherein, the sampling cylinder and the sliding cover are made of light-transmitting material, and the probe of the light sensor is located on the inside of the sampling cylinder. the outer periphery of the sampling cylinder and the sliding cover is provided with anti-skid stripes, and / or the outer periphery of the sampling cylinder and the sliding cover is provided with a rubber layer.

4. The powder sampler of claim 3, wherein, ​ 5. The powder sampler of claim 1, wherein, ​ 6. The powder sampler of claim 1, wherein, The sampling end is tapered in a direction away from the indicating end to form a tapered drill bit. The sampling end is tapered in a direction away from the indicating end to form a tapered drill bit.

Images