Powder sampling and weighing device

Abstract

The utility model discloses a powder sampling and weighing device which comprises a sampling handle, a sampling hole, a sampling sleeve, a tube body sleeve, a vibrator and a weighing sensor, one end of the tube body sleeve is connected with the sampling sleeve, the sampling handle is spirally connected in the tube body sleeve, the sampling handle is used for extracting solid powder in a rotating and spiral mode, and the weighing sensor is connected with the vibrator. A sampling hole used for being in direct contact with a solid powder sample is connected into the sampling sleeve in a sealed mode, the sampling hole is formed in one end of the sampling handle, one end of the vibrator is connected with the side wall of the sampling handle, the other end of the vibrator is connected with the inner wall of the pipe body sleeve, and the weighing sensor and the vibrator are oppositely arranged. One end of the weighing sensor is connected with the side wall of the sampling handle, and the other end is connected with the inner wall of the tube body sleeve; according to the device, accurate sampling can be automatically carried out under the condition of preset mass, so that a powder sample meeting experimental requirements is directly obtained, and the device not only can greatly reduce operation errors, but also can improve experimental efficiency.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of trace sampling sample, specifically relates to powder sampling and weighing device. BACKGROUND

[0002] In the experiment process, we find that the existing laboratory balance is difficult to accurately control to the specified quality when weighing solid powder, especially when the powder sample quality requirement is accurate to zero point several grams or even zero point zero several grams. The error caused by the conventional weighing method often needs to repeatedly sample and reweigh, which not only consumes time, but also wastes experimental materials.

[0003] Chinese utility model patent CN205826354U discloses a kind of adjustable trace solid powder sampler, including tube body sleeve, the lower end of tube body sleeve is sealedly connected with the sampling orifice tube for directly contacting solid powder sample or reagent, tube body sleeve upper end is connected with quantitative adjustment knob by precision thread, tube body sleeve inside is provided with push pin and spring, push pin is in turn along center position and is sleeved in quantitative adjustment button, tube body sleeve, spring and sampling orifice tube, push pin upper end is equipped with pressing cap;Quantitative adjustment button and tube body sleeve are adjusted by relative rotation to adjust the relative position between push pin and sampling orifice tube, form different depths for accommodating solid powder sample or reagent inverting cup-shaped space at the end of sampling orifice tube, the volume of inverting cup-shaped space is gradually reduced by pressing cap to complete the transfer of solid powder sample or reagent.

[0004] Therefore, the utility model provides powder sampling and weighing device, to solve the problems in the above background art. UTILITY MODEL CONTENT

[0005] For the problems in the above background art, the purpose of the utility model is: aimed at providing powder sampling and weighing device, the device can automatically carry out accurate sampling under the condition of pre-set quality, to directly obtain the powder sample meeting the experimental requirements, this device not only can greatly reduce operation error, also will improve experimental efficiency, meet the demand of accurate sampling in various experimental environments.

[0006] To achieve the above technical purpose, the utility model adopts the following technical scheme:

[0007] The powder sampling and weighing device comprises a sampling handle, a sampling hole, a sampling sleeve, a tube sleeve, a vibrator and a weighing sensor, one end of the tube sleeve is connected with the sampling sleeve, the sampling handle is spirally connected inside the tube sleeve and is used for rotating and spirally extracting solid powder, the sampling hole used for directly contacting the solid powder sample is sealingly connected inside the sampling sleeve, the sampling hole is arranged at one end of the sampling handle, one end of the vibrator is connected with the side wall of the sampling handle and the other end is connected with the inner wall of the tube sleeve, the weighing sensor is oppositely arranged with the vibrator, one end of the weighing sensor is connected with the side wall of the sampling handle and the other end is connected with the inner wall of the tube sleeve.

[0008] Further limitation, still comprising a camera and a magnifying glass, the magnifying glass is connected with the tube sleeve, the camera is detachably connected with the magnifying glass, the camera and the magnifying glass are combined to monitor the solid powder sampling in real time.

[0009] Further limitation, the sample storage tube is arranged at the bottom end of the tube sleeve, and the sampling handle penetrates the sample storage tube.

[0010] Further limitation, still comprising a microcontroller and a control terminal, the weighing sensor is in communication connection with the microcontroller, the weighing sensor and the vibrator are respectively in communication connection with the microcontroller, and the control terminal comprises a display screen for displaying weighing data in real time.

[0011] Further limitation, still comprising a handle and a nut assembly, the camera and the magnifying glass are connected through the nut assembly, and the handle is connected with the nut assembly and used for adjusting the tightness of the nut assembly.

[0012] Further limitation, the weighing sensor is a strain gauge sensor or a capacitive sensor. The strain gauge sensor works based on the principle of resistance strain effect. When the sensor is subjected to external force, the internal metal strain gauge will deform, causing the resistance value to change. The strain gauge sensor has simple structure, low cost, high sensitivity and precision, and is suitable for static and dynamic measurement.

[0013] The utility model discloses the beneficial effects of the following:

[0014] The powder sampling and weighing device has the advantages that the sampling handle, the sampling hole, the sampling sleeve, the pipe body sleeve, the camera, the magnifying glass, the vibrator, the weighing sensor, the microcontroller and the control terminal are arranged, the weighing sensor is a strain gauge type sensor or a capacitive type sensor, the sensor has simple structure, low cost, high sensitivity, fast response speed and the capability of measuring various physical quantities, and the combination of the sensor and the device can improve the measurement accuracy (for example, 0.01g) of the solid powder, meanwhile, the vibrator is arranged, the sampling quality is controlled by adjusting the vibration intensity and the time, the measurement data can be transmitted to the display screen of the control terminal in real time by the microcontroller, and thus the sampling condition can be monitored in real time.

[0015] In conclusion, the device can automatically perform accurate sampling under the condition of the preset quality, so that the powder sample meeting the experimental requirements can be directly obtained, the device can greatly reduce the operation error, improves the experimental efficiency and meets the demand for accurate sampling in various experimental environments. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model can be further explained by the non-limiting embodiments shown in the drawings;

[0017] Figure 1 It is the structure schematic drawing of powder sampling and weighing device embodiment of the utility model;

[0018] Figure 2 It is the side view of powder sampling and weighing device embodiment of the utility model;

[0019] Figure 3 It is the front view of powder sampling and weighing device embodiment of the utility model;

[0020] Figure 4 It is the B-B section view of powder sampling and weighing device embodiment of the utility model.

[0021] The main element symbol explanation is as follows: handle 1, nut assembly 2, sampling handle 3, sampling hole 4, sampling sleeve 5, pipe body sleeve 6, camera 7, magnifying glass 8, vibrator 9, weighing sensor 10, sample storage tube 11. DETAILED DESCRIPTION

[0022] In order for those skilled in the art to better understand the utility model, the technical solutions of the utility model will be further described below in combination with the drawings and embodiments. The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the drawings of the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0024] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the protection scope required by the present application. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0025] As shown in Figure 1 The powder sampling and weighing device of the present application comprises a sampling handle 3, a sampling hole 4, a sampling sleeve 5, a tube sleeve 6, a vibrator 9 and a weighing sensor 10. One end of the tube sleeve 6 is connected with the sampling sleeve 5. The sampling handle 3 is spirally connected inside the tube sleeve 6, and is used to rotate and extract solid powder. The sampling sleeve 5 is sealingly connected with the sampling hole 4 used to directly contact the solid powder sample. The sampling hole 4 is arranged at one end of the sampling handle 3. One end of the vibrator 9 is connected with the side wall of the sampling handle 3, and the other end is connected with the inner wall of the tube sleeve 6. The weighing sensor 10 is arranged opposite to the vibrator 9. One end of the weighing sensor 10 is connected with the side wall of the sampling handle 3, and the other end is connected with the inner wall of the tube sleeve 6.

[0026] Preferably, it further comprises a camera 7 and a magnifying glass 8. The magnifying glass 8 is connected with the tube sleeve 6. The camera 7 is detachably connected with the magnifying glass 8. The camera 7 and the magnifying glass 8 are combined to monitor the solid powder sampling in real time. Such structure design can improve the efficiency and accuracy of solid powder sampling.

[0027] Preferably, the sample storage tube 11 is arranged at the bottom end of the tube sleeve 6. The sampling handle 3 penetrates the sample storage tube 11.

[0028] Preferably, the microcontroller and the control terminal are further included, the weighing sensor 10 is in communication connection with the microcontroller, the weighing sensor 10 and the vibrator 9 are respectively in communication connection with the microcontroller, and the control terminal includes a display screen for displaying the weighing data in real time. Such a structural design can realize real-time monitoring of the sampling condition and is more intuitive.

[0029] Preferably, the handle 1 and the screw cap assembly 2 are further included, the camera 7 and the magnifying glass 8 are connected through the screw cap assembly 2, and the handle 1 is connected with the screw cap assembly 2, so as to adjust the tightness of the screw cap assembly 2.

[0030] Preferably, the weighing sensor 10 is a strain gauge sensor or a capacitive sensor. Such a structural design is based on the principle of resistance strain effect. When the sensor is subjected to external force, the internal metal strain gauge will be deformed, resulting in a change in resistance value. The strain gauge sensor has the advantages of simple structure, low cost, high sensitivity and precision, and is suitable for static and dynamic measurement. The capacitive sensor senses the change of physical quantity by measuring the change of capacitance. When an object approaches or contacts the two conductive plates of the sensor, the capacitance will change, and this change is converted into an electrical signal output. The capacitive sensor has the characteristics of high sensitivity, fast response speed and measurement of multiple physical quantities.

[0031] In the utility model, the sampling sleeve 5 is inserted into the solid powder sample once or multiple times during sampling, the solid powder sample is filled in the sampling sleeve 5, the solid powder sample is quickly removed from the sampling hole 4 by rotating the sampling handle 3, the vibrator 9 is used to make the flow of the solid powder more uniform, the weighing sensor 10 transmits the weighing data of the part of the solid powder to the microcontroller and the control terminal in real time, meanwhile, the camera 7 and the magnifying glass 8 are used to observe whether the solid powder has obvious abnormalities in real time. Such a design improves the weighing efficiency of the solid powder sample, greatly reduces the operation error, improves the experimental efficiency, and meets the demand for precise sampling in various experimental environments.

[0032] The above embodiment only exemplarily illustrates the principle and effect of the utility model, and is not used for limiting the utility model. Any person skilled in the art can modify or change the above embodiment without departing from the spirit and category of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.

Claims

1. A powder sampling and weighing device, characterized by: It includes a sampling handle (3), a sampling hole (4), a sampling sleeve (5), a tube sleeve (6), a vibrator (9) and a weighing sensor (10), one end of the tube sleeve (6) is connected with the sampling sleeve (5), the inside of the tube sleeve (6) is spirally connected with the sampling handle (3), the sampling handle (3) is used for rotating and spirally extracting solid powder, the sampling sleeve (5) is sealingly connected with the sampling hole (4) for directly contacting the solid powder sample, the sampling hole (4) is arranged at one end of the sampling handle (3), one end of the vibrator (9) is connected with the side wall of the sampling handle (3), and the other end is connected with the inner wall of the tube sleeve (6), the weighing sensor (10) is arranged opposite to the vibrator (9), one end of the weighing sensor (10) is connected with the side wall of the sampling handle (3), and the other end is connected with the inner wall of the tube sleeve (6).

2. The powder sampling and weighing device according to claim 1, characterized in that: It also includes a camera (7) and a magnifying glass (8), the magnifying glass (8) is connected with the tube sleeve (6), the camera (7) is detachably connected with the magnifying glass (8), and the camera (7) and the magnifying glass (8) are combined to be used for monitoring the solid powder sampling in real time.

3. The powder sampling and weighing apparatus according to claim 1, wherein: The bottom end of the tube sleeve (6) is provided with a sample storage tube (11), and the sampling handle (3) penetrates the sample storage tube (11).

4. The powder sampling and weighing apparatus according to claim 1, wherein: It also includes a microcontroller and a control terminal, the weighing sensor (10) and the vibrator (9) are respectively in communication connection with the microcontroller, the microcontroller is in communication connection with the control terminal, and the control terminal includes a display screen for displaying weighing data in real time.

5. The powder sampling and weighing apparatus according to claim 2, wherein: It also includes a handle (1) and a nut assembly (2), the camera (7) and the magnifying glass (8) are connected through the nut assembly (2), and the handle (1) and the nut assembly (2) are used for adjusting the tightness of the nut assembly (2).

6. The powder sampling and weighing apparatus according to claim 1, wherein: The weighing sensor (10) is a strain gauge sensor or a capacitive sensor.

Images