Specific meter sample tube sample loading auxiliary device

Abstract

The utility model provides a sample loading auxiliary device for a specific meter sample tube, and belongs to the field of new energy battery testing. The device comprises a second component and a third component, the second component and the third component are of a cylindrical structure, the second component is of a tubular structure with the two ends open, and a limiting pushing part is arranged at one end of the third component and is arranged in the second component in a sliding mode. By adopting the sample loading auxiliary device for the specific meter sample tube provided by the embodiment of the utility model, the problems that the powder sample loading difficulty is relatively high and the loading efficiency is relatively low in the prior art can be solved.

Description

Technical Field

[0001] The utility model relates to the field of new energy battery testing, and particularly relates to an auxiliary device for loading a specific surface area sample tube. Background Art

[0002] Lithium-ion batteries play an increasingly important role in daily life. Therefore, the requirements for the quality of lithium battery cells are also getting higher and higher. So, the detection of cell raw materials has become an essential production link. In the detection of cell raw materials, the specific surface area detection is particularly important. Usually, for the specific surface area detection, a powder sample needs to be loaded into a specific surface area sample tube for detection. The mouth diameter of the specific surface area sample tube is small, the tube neck is long, and there is a spherical container at the bottom. The powder sample needs to be loaded into the bottom spherical container for detection.

[0003] The loading method of the existing specific surface area sample tube usually uses a long-neck funnel for loading. However, due to the small diameter of the specific surface area sample tube, the diameter of the long-neck funnel needs to be even smaller. When loading the powder, even if the long-neck funnel is vibrated, the powder is not easy to fall. For relatively light powder samples such as conductive agents, it is difficult to fall to the bottom of the specific surface area sample tube by its own gravity.

[0004] The loading device of the existing specific surface area sample tube has a large loading difficulty and a low loading efficiency for the sample powder. Summary of the Utility Model

[0005] The embodiment of the utility model provides an auxiliary device for loading a specific surface area sample tube, which can solve the problems of large loading difficulty and low loading efficiency of the powder sample in the existing technology. The technical solution is as follows:

[0006] An auxiliary device for loading a specific surface area sample tube includes: a second component and a third component.

[0007] The second component and the third component are of a cylindrical structure. The second component is a tubular structure with openings at both ends. One end of the third component is provided with a limiting propulsion part, and the limiting propulsion part is slidably arranged in the second component.

[0008] Optionally, a scale bar is arranged on the tube wall of the second component.

[0009] Optionally, a ventilation notch is opened along the length direction of the limiting propulsion part.

[0010] Optionally, a brush is arranged at the other end of the third component.

[0011] Optionally, it further includes a first component, which is a tubular structure with openings at both ends. The first component is sleeved outside the second component. The first component includes a first installation end and a first filling end, and the second component includes a second installation end and a second filling end. The first installation end and the second installation end cooperate, and the first filling end and the second filling end cooperate to dispose the second component inside the first component.

[0012] Optionally, a boss facing the inside of the first component is provided on the first filling end along the axial direction, and a chamfer matching the boss is provided on the inner wall of the second filling end.

[0013] Optionally, a first installation groove arranged along the length direction of the first component is formed on the first installation end, and an installation protrusion matching the first installation groove is provided on the second installation end.

[0014] Optionally, a second installation groove communicating with the first installation groove is formed on the first component, and the second installation groove is perpendicular to the first installation groove.

[0015] The beneficial effects brought by the technical solution provided by the embodiment of the present invention at least include:

[0016] For the specific surface area sample tube loading auxiliary device provided by the embodiment of the present invention, after loading the sample powder into the second component, the end of the second component filled with the sample powder is placed into the bottom spherical container of the specific surface area sample tube, and then the sample powder in the second component is pushed by the limiting propulsion part at the end of the third component, so that the sample powder in the second component fully enters the specific surface area sample tube. Through the movement cooperation of the second component and the third component, compared with the traditional method of relying on the self-weight of the sample powder to fall, the sample powder can fall more fully to the bottom of the specific surface area sample tube, effectively solving the problems of large loading difficulty and low loading efficiency of powder samples in the prior art. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is the overall structure assembly schematic diagram of the device provided by the embodiment of the present invention;

[0019] Figure 2 It is provided by the embodiment of the present invention Figure 1 The enlarged schematic diagram of the structure at position A;

[0020] Figure 3 is the schematic cross-sectional view of the enlarged structure at position B provided by the embodiment of the present utility model; Figure 1

[0021] Figure 4 is the schematic structural view of the first component provided by the embodiment of the present utility model;

[0022] Figure 5 is the schematic structural view of the second component provided by the embodiment of the present utility model;

[0023] Figure 6 is the schematic structural view of the third component provided by the embodiment of the present utility model;

[0024] Figure 7 is provided by the embodiment of the present utility model Figure 6 schematic view of the enlarged structure at position C.

[0025] In the figure: 1 - the first component; 11 - the first installation end; 111 - the first installation groove; 112 - the second installation groove; 12 - the first filling end; 121 - the boss; 2 - the second component; 201 - the scale bar; 21 - the second installation end; 211 - the installation protrusion; 22 - the second filling end; 221 - the chamfer; 3 - the third component; 31 - the limiting and pushing part; 311 - the ventilation notch; 32 - the brush. Specific Embodiments

[0026] To make the objectives, technical solutions and advantages of the present utility model clearer, the following will further describe in detail the embodiments of the present utility model with reference to the accompanying drawings.

[0027] Figure 1 is the schematic view of the overall structure assembly of the device provided by the embodiment of the present utility model; Figure 2 is provided by the embodiment of the present utility model Figure 1 schematic view of the enlarged structure at position A; Figure 3 is provided by the embodiment of the present utility model Figure 1 schematic cross-sectional view of the enlarged structure at position B; Figure 4 is the schematic structural view of the first component provided by the embodiment of the present utility model; Figure 5 is the schematic structural view of the second component provided by the embodiment of the present utility model; Figure 6 is the schematic structural view of the third component provided by the embodiment of the present utility model; Figure 7 is provided by the embodiment of the present utility model Figure 6 schematic view of the enlarged structure at position C. As shown in Figures 1 to 7 ​A sample tube loading assistance device for specific surface area measurement as shown, comprising: a second component 2 and a third component 3. The second component 2 and the third component 3 are cylindrical structures. The second component 2 is a tubular structure with openings at both ends. One end of the third component 3 is provided with a limiting and pushing portion 31, and the limiting and pushing portion 31 is slidably disposed within the second component 2.

[0028] Exemplarily, in an embodiment of the present utility model, the second component 2 includes a second mounting end 21 and a second filling end 22. The third component 3 is inserted into the second component 2 from the second mounting end 21 of the second component 2. The limiting and pushing portion 31 and the second filling end 22 of the second component 2 are the capacity in the second component 2 that can hold sample powder. By repeatedly inserting the second filling end 22 into the sample powder storage box, the sample powder fully enters the second component 2 from the second filling end 22. Then, the second filling end 22 of the second component 2 is placed into the orifice of the specific surface area measurement sample tube, such that the second filling end 22 enters the spherical container at the bottom of the specific surface area measurement sample tube. By manipulating the end of the third component 3 away from the limiting and pushing portion 31, the limiting and pushing portion 31 pushes the sample powder in the second component 2 into the spherical container at the bottom of the specific surface area measurement sample tube. By repeatedly pushing the second component 2 up and down, the sample powder fully detaches from the second component 2 and fully enters the spherical container at the bottom of the specific surface area measurement sample tube.

[0029] For the sample tube loading assistance device for specific surface area measurement provided by the embodiment of the present utility model, after loading the sample powder into the second component 2, the end of the second component 2 containing the sample powder is placed into the bottom spherical container of the specific surface area measurement sample tube. Then, the sample powder in the second component 2 is pushed by the limiting and pushing portion 31 at the end of the third component 3, such that the sample powder in the second component 2 fully enters the specific surface area measurement sample tube. Through the movement cooperation of the second component 2 and the third component 3, compared with the method of relying on the self-weight of the sample powder to fall in the traditional technical means, the sample powder more fully falls to the bottom of the specific surface area measurement sample tube, effectively solving the problems of difficult powder sample filling and low filling efficiency in the prior art.

[0030] Optionally, a scale bar 201 is provided on the tube wall of the second component 2.

[0031] Exemplarily, in an embodiment of the present utility model, a scale bar 201 is provided on the second component 2. When the limiting and pushing portion 31 is inserted into the second component 2, the position of the limiting and pushing portion 31 within the second component 2 can be adjusted according to the amount of sample powder to be added into the specific surface area measurement sample tube, thereby enabling quantitative addition and extraction of the required capacity of sample powder, thus improving the operation convenience of this sample tube loading assistance device for specific surface area measurement.

[0032] Optionally, a ventilation notch 311 is provided along the length direction of the limiting and pushing portion 31.

[0033] Exemplarily, in the embodiment of the present utility model, the limiting propulsion part 31 is a cylindrical structure that matches the inner wall of the second component 2. As shown in the figure, the ventilation notch 311 forms a flat surface on the circumferential surface of the limiting propulsion part 31, and the main rod diameter of the third component 3 is smaller than that of the limiting propulsion part 31. A ventilation notch 311 is provided along the length direction of the cylinder of the limiting propulsion part 31, so that the air pressure inside the second component 2 can be kept consistent with the external air pressure during the sampling and filling process of the sample powder, facilitating the smooth pushing of the sample powder by the limiting propulsion part 31 into the specific surface area sample tube. During the process of the limiting propulsion part 31 pushing the sample powder, some powder may enter the second component 2 at the other end of the limiting propulsion part 31 through the ventilation notch 311. By rotating the limiting propulsion part 31 and pushing it back and forth, the sample powder in the second component 2 can fully enter the specific surface area sample tube. By providing the ventilation notch 311, the operation convenience and filling efficiency of this specific surface area sample tube loading auxiliary device are further improved.

[0034] Optionally, a brush 32 is provided at the other end of the third component 3.

[0035] Exemplarily, in the embodiment of the present utility model, since the second component 2 is a relatively long tubular structure, a brush 32 is provided on the other side of the third component 3. After using this device to load the sample powder into the specific surface area sample tube, there may be residual sample powder on the inner wall of the second component 2. The inner wall of the second component 2 can be cleaned by the brush 32 provided on the third component 3, eliminating the need to purchase additional cleaning tools, thereby further improving the operation convenience of this specific surface area sample tube loading auxiliary device.

[0036] Optionally, it further includes a first component 1. The first component 1 is a tubular structure with openings at both ends. The first component 1 is sleeved outside the second component 2. The first component 1 includes a first installation end 11 and a first filling end 12, and the second component 2 includes a second installation end 21 and a second filling end 22. The first installation end 11 and the second installation end 21 cooperate, and the first filling end 12 and the second filling end 22 cooperate to arrange the second component 2 inside the first component 1.

[0037] For example, in the embodiment of the utility model, the first component is sleeved on the outside of the second component 2. When taking the sample powder, the first component 1 and the second component 2 are first assembled and installed so that the first filling end 12 and the second filling end 22 are connected. Then, the assembly of the first component 1 and the second component 2 is repeatedly inserted into the sample powder storage box through the first filling end 12 and the second filling end 22, so that the sample powder fully enters the second component 2 from the second filling end 22. The caliber of the first filling end 12 is smaller than that of the second filling end 22. After the first component 1 and the second component 2 are assembled, External force fits the first filling end 12 and the second filling end 22 tightly together, so that during the sampling process, the sample directly enters the interior of the second component 2 through the first filling end 12 and the second filling end 22, or contacts the outside of the first component 1, so that the outer wall of the second component 2 is not contaminated with sample powder. Then, the second component 2 is taken out from the first component 1, and the second component 2 is placed in the comparative sample tube, so that the second component 2 will not contaminate the tube wall of the comparative sample tube, eliminating the operation of cleaning the inner wall of the comparative sample tube, thereby improving the efficiency of sample loading and sample powder testing.

[0038] Optionally, the first filling end 12 is provided with a boss 121 facing the interior of the first component 1 along the axial direction, and the inner wall of the second filling end 22 is provided with a chamfer 221 matching the boss 121 .

[0039] For example, in the embodiment of the present utility model, Figure 3 As shown, the chamfer 221 is a rounded corner. By providing the boss 121 and the chamfer 221, the first component 1 and the second component 2 are prevented from shaking in the first component 1 when they are matched, and there is no need to press the first filling end 12 and the second filling end 22 tightly together by external force. The boss 121 is a truncated cone structure. When the boss 121 and the chamfer 221 are matched, the outer wall of the second component 2 is separated from the outside world by the friction between the inclined surface of the boss 121 and the arc surface of the chamfer 221. During the sampling process, the sample powder cannot enter the intermediate space between the second component 2 and the first component 1 at all. By adopting the structure of the boss 121 and the chamfer 221, the sealing performance between the first component 1 and the second component 2 is increased, thereby further improving the filling efficiency of the sample tube loading auxiliary device of the comparison table.

[0040] Optionally, the first mounting end 11 is provided with a first mounting groove 111 arranged along the length direction of the first component 1 , and the second mounting end 21 is provided with a mounting protrusion 211 matching the first mounting groove 111 .

[0041] Exemplarily, in the embodiment of the present utility model, by providing the first installation groove 111 and the installation protrusion 211, when the first component 1 and the second component 2 are engaged, rotation of the second component 2 within the first component 1 is prevented, thereby increasing the tightness of the engagement between the first component 1 and the second component 2, further preventing the sample powder from coming into contact with the outer wall of the second component 2, and further improving the loading efficiency of the specific surface sample tube loading auxiliary device of the present invention.

[0042] Optionally, a second installation groove 112 communicating with the first installation groove 111 is formed on the first component 1, and the second installation groove 112 is perpendicular to the first installation groove 111.

[0043] Exemplarily, in the embodiment of the present utility model, by providing the second installation groove 112, after the first component 1 and the second component 2 are installed through the first installation groove 111 and the installation protrusion 211, by rotating the second component 2, the installation protrusion 211 is made to enter the second installation groove 112. Since the second installation groove 112 limits the second component 2 in the length direction, and the device needs to be repeatedly inserted into the sample powder storage box in the length direction during the sampling process, by providing the second installation groove 112, the movement of the second component 2 in the length direction is restricted, improving the assembly stability, and further improving the loading efficiency of the specific surface sample tube loading auxiliary device of the present invention.

[0044] Unless otherwise defined, the technical terms or scientific terms used herein shall have the ordinary meanings understood by those of ordinary skill in the field to which the present utility model pertains. The terms "first", "second" and similar terms used in the specification and claims of the present utility model patent application do not denote any order, quantity or importance, but are only used to distinguish different components. Similarly, the terms such as "a" or "one" do not denote a quantity limitation, but mean that there is at least one. The terms "comprising" or "including" and similar terms are intended to mean that the elements or items appearing before "comprising" or "including" cover the elements or items listed after "comprising" or "including" and their equivalents, and do not exclude other elements or items. The terms "connected" or "coupled" and similar terms are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms "upper", "lower", "left", "right" etc. are only used to indicate relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationships may also change accordingly.

[0045] The above are only optional embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An auxiliary device for loading samples in a specific gravity comparison sample tube, characterized in that, Comprising: A second component (2) and a third component (3), The second component (2) and the third component (3) are cylindrical structures. The second component (2) is a tubular structure with openings at both ends. One end of the third component (3) is provided with a limiting and pushing portion (31), and the limiting and pushing portion (31) is slidably arranged inside the second component (2); It further comprises a first component (1). The first component (1) is a tubular structure with openings at both ends. The first component (1) is sleeved outside the second component (2). The first component (1) includes a first installation end (11) and a first filling end (12). The second component (2) includes a second installation end (21) and a second filling end (22). The first installation end (11) and the second installation end (21) cooperate, and the first filling end (12) and the second filling end (22) cooperate to arrange the second component (2) inside the first component (1).

2. The specific gravity table sample tube loading auxiliary device according to claim 1, wherein A scale bar (201) is provided on the tube wall of the second component (2).

3. The specific gravity meter sample tube loading auxiliary device according to claim 1, characterized in that, An air vent notch (311) is formed in the limiting and pushing portion (31) along the length direction.

4. A specific gravity meter sample tube loading auxiliary device according to claim 1, characterized in that, A brush (32) is provided at the other end of the third component (3).

5. The specific gravity meter sample tube loading auxiliary device according to claim 1, characterized in that, A boss (121) facing the inside of the first component (1) is arranged along the axial direction at the first filling end (12), and a chamfer (221) matching the boss (121) is arranged on the inner wall of the second filling end (22).

6. The specific gravity table sample tube loading auxiliary device according to claim 1, characterized in that, A first installation groove (111) arranged along the length direction of the first component (1) is formed in the first installation end (11), and an installation protrusion (211) matching the first installation groove (111) is arranged at the second installation end (21).

7. The auxiliary device for loading a specific surface area sample tube according to claim 6, wherein, A second installation groove (112) communicating with the first installation groove (111) is formed in the first component (1), and the second installation groove (112) is perpendicular to the first installation groove (111).

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