A ballpoint pen

Abstract

The invention relates to a bead-adding pen, comprising an outer cylinder, an upper cover, a bead-dividing assembly, a lower end cover and a nozzle, wherein the grinding beads in the outer cylinder are located at the bottom of a columnar space under the action of gravity, and since a bead-dividing bar is axially slidably arranged on the outer cylinder, as the bead-dividing bar slides downward, a bead-dividing groove quantitatively captures the grinding beads in the columnar space and then transports them to the bottom of a partition seat, and then a determined number of grinding beads fall from the bead-dividing groove and are output from a bead-spraying port of a nozzle, thereby realizing quantitative addition of the grinding beads, simplifying the tedious bead-adding work and greatly improving the work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field related to material grinding, and in particular to a ballpoint pen. Background Art

[0002] Grinding beads, also known as grinding balls, refer to the ball stones that are made of bauxite, roller powder, industrial alumina powder, high-temperature calcined alpha alumina powder, stainless steel and other materials, and are made through processes such as batching, grinding, powder making, molding, drying, and sintering. They are mainly used as grinding media and are widely used. According to the material, they can be divided into stainless steel grinding beads, zirconium oxide beads, glass beads, ceramic beads, etc., and according to the size, they can be divided into particles with a diameter as small as 0.1mm or less and as large as 20mm or more.

[0003] In the grinding and homogenization of biomedical specimens, chemical raw materials, and mineral and rock analysis, these links require quantitative addition of grinding beads, that is, adding beads. There are generally two traditional ways of adding beads. One is to use a small spoon to pour grinding beads to a designated position. This method is likely to cause the grinding beads to spill, which in turn causes secondary contamination to the material. In addition, the accuracy of the number of added beads needs to be controlled by manual visual counting. It is easy to add too much or too little, and the operation needs to be repeated many times, which is time-consuming and laborious, and easily causes eyestrain. The second method is to use tweezers to clamp the beads. The grinding beads are easy to fall off, which can also cause secondary contamination. In addition, the efficiency of adding beads with tweezers is very low. Whether it is a spoon or tweezers, the sterile grinding bead storage bottle needs to be in an open state. This is not a sterile operation and is not conducive to high-quality measurement operations. Therefore, it is necessary to provide a device or equipment that can easily and quantitatively add beads. Summary of the invention

[0004] Based on the above description, the present invention provides a bead-adding pen to solve the technical problems in the prior art that adding grinding beads easily causes secondary pollution, has low bead adding efficiency, and is time-consuming and labor-intensive.

[0005] The technical solution of the present invention to solve the above technical problems is as follows:

[0006] A ballpoint pen, comprising:

[0007] An outer cylinder, with upper and lower ends opened;

[0008] An upper cover, wherein the upper cover is detachable and is disposed at the upper opening of the outer cylinder;

[0009] A bead separation assembly, comprising at least one bead separation bar, which is axially slidably disposed on the outer cylinder, and all the bead separation bars are disposed along the circumference of the outer cylinder, the lower part of the bead separation bar is enclosed inside the outer cylinder to form a columnar space, and a quantitative bead separation groove capable of accommodating a certain number of grinding beads is formed on the inner wall of the bead separation bar;

[0010] A lower end cover is installed in the inner part of the outer cylinder near the lower end, and the lower end cover includes a separator seat closing the lower end opening of the columnar space, and when the bead separator bar is respectively located at the upper end stop point and the lower end stop point of its sliding stroke, the quantitative bead separator groove is respectively located at the upper side and the lower side of the separator seat;

[0011] The nozzle is detachably connected to the lower end of the outer cylinder, the nozzle is arranged below the partition seat, and the lower end of the nozzle has a bead spraying port for only allowing a single grinding bead to pass through at a time.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0013] The bead-adding pen provided in the present application can be pre-added with a sufficient amount of grinding beads in the outer cylinder. The grinding beads are located at the bottom of the columnar space under the action of gravity. Since the bead-dividing bar is axially slidably arranged on the outer cylinder, as the bead-dividing bar slides downward, the bead-dividing groove captures the grinding beads inside the columnar space in a quantitative manner and then transports them to the bottom of the partition seat. Then, a determined number of grinding beads fall from the bead-dividing groove and are output from the bead-spraying port of the nozzle, thereby realizing the quantitative addition of grinding beads, simplifying the tedious bead-adding work, and greatly improving work efficiency.

[0014] Based on the above technical solution, the present invention can also be improved as follows.

[0015] Furthermore, the bead splitting assembly also includes at least one elastic member, each bead splitting strip corresponds to at least one elastic member, and the elastic members are respectively connected to the corresponding bead splitting strip and the outer tube so that the bead splitting strip can slide elastically relative to the outer tube.

[0016] Furthermore, the lower end cover also includes a lower connecting ring and a column, the lower connecting ring is detachably connected to the inner wall of the outer tube, the column is connected to the upper end of the lower connecting ring, and the partition seat is connected to the upper end of the column.

[0017] Furthermore, the upper end of the separator has a conical boss so that the grinding beads at the bottom of the columnar space are located at the upper edge of the separator.

[0018] Furthermore, the upper end of the bead strip has a control part, the lower end of the control part has a guide groove arranged along the length direction of the bead strip, the upper end of the outer tube is formed with a guide notch corresponding to each guide groove, and the part of the control part located outside the guide groove is located outside the outer tube.

[0019] Furthermore, the upper end of the quantitative bead separation groove is provided with a bead separation protrusion.

[0020] Furthermore, the height of the quantitative bead separation groove is greater than the diameter of the grinding beads and less than twice the diameter of the grinding beads.

[0021] Furthermore, the lengths of the quantitative bead separation grooves on different bead separation strips are different.

[0022] Furthermore, the bead separation assembly includes four bead separation bars, and the maximum number of grinding beads that can be accommodated in the quantitative bead separation groove along the length direction is 1, 2, 3, and 4 respectively.

[0023] Furthermore, the lower end of the quantitative bead separation groove has a downwardly inclined slope. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the three-dimensional structure of a ballpoint pen provided by an embodiment of the present invention;

[0025] Figure 2 for Figure 1 Schematic diagram of longitudinal section;

[0026] Figure 3 It is a schematic diagram of the connection between the bead strip and the outer cylinder;

[0027] Figure 4 for Figure 2 Schematic diagram of the AA section;

[0028] Figure 5 It is a schematic diagram of the structure of the outer cylinder;

[0029] Figure 6 Schematic diagram of the three-dimensional structure of the bead strip;

[0030] Figure 7 for Figure 6 Another perspective structural diagram;

[0031] Figure 8 It is a schematic diagram of the three-dimensional structure of the lower end cover. DETAILED DESCRIPTION

[0032] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0034] It will be appreciated that spatial relationship terms such as "under", "beneath", "below", "under", "above", "above", etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It will be appreciated that, in addition to the orientations shown in the figures, spatial relationship terms also include different orientations of the device in use and operation. For example, if the device in the accompanying drawings is flipped, an element or feature described as "under other elements" or "under it" or "under it" will be oriented as "on" the other elements or features. Thus, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include additional orientations (e.g., rotated 90° or other orientations), and the spatial descriptors used herein are interpreted accordingly.

[0035] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element, or connected to the other element through an intermediate element. The "connection" in the following embodiments should be understood as "electrical connection", "communication connection", etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.

[0036] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0037] like Figure 1-8 As shown, the present application's ballpoint pen comprises an outer tube 10 , an upper cover 20 , a ball separator assembly 30 , a lower end cover 40 and a nozzle 50 .

[0038] The outer cylinder 10 is a cylindrical structure with openings at both ends, serving as the outer structure of the entire bead-adding pen. The upper opening of the outer cylinder 10 can be used to add grinding beads 100 in batches.

[0039] The upper cover 20 is a detachable cover disposed on the upper end opening of the outer cylinder 10 . When the upper cover 20 is closed, the upper end of the outer cylinder 10 can be sealed to prevent the grinding beads 100 from being contaminated by the external environment.

[0040] The bead separation assembly 30 includes at least one bead separation bar 31, which is axially slidably arranged on the outer cylinder 10, and all the bead separation bars 31 are arranged along the circumference of the outer cylinder 10. The lower part of the bead separation bar 31 is enclosed in the inner part of the outer cylinder 10 to form a columnar space, and the shape of the columnar space can be any columnar structure. In the present embodiment, the columnar space is cylindrical, that is, the lower part of each bead separation bar is a bar with a fan-shaped cross-section, and all the fan rings form a complete ring, and the inside of the ring is the above-mentioned columnar space, which is used to accommodate the grinding beads 100.

[0041] A quantitative bead separation groove 311 for accommodating a certain number of grinding beads 100 is formed on the inner wall of the bead separation bar 31. When the bead separation bar 31 slides axially, the certain number of grinding beads 100 accommodated in the quantitative bead separation groove 311 move axially inside the outer cylinder 10.

[0042] In some preferred embodiments, the bead strip assembly 30 further includes at least one elastic member 32, each bead strip 31 corresponds to at least one elastic member 32, and the elastic members 32 are respectively connected to the corresponding bead strip 31 and the outer tube 10 so that the bead strip 31 can slide elastically relative to the outer tube 10.

[0043] In a specific embodiment, the elastic member 32 is a spring, and each bead strip 31 has a strip groove 312 on the outside, and the inner wall of the outer tube 10 has a limit block 11 corresponding to the strip groove 312. The spring is arranged in the strip groove 312 and its two ends are respectively connected to the lower end of the strip groove 312 and the upper end of the limit block 11, which is used for the elastic reset of the bead strip 31.

[0044] In this embodiment, the installation of the bead strip 31 is as follows: the upper end of the bead strip 31 has a control part 313, and the lower end of the control part 313 has a guide groove 314 arranged along the length direction of the bead strip 31, and the upper end of the outer tube 10 is formed with a guide notch 12 corresponding to each guide groove 314, and the part of the control part 313 located outside the guide groove 314 is located outside the outer tube 10, and then the downward sliding of the bead strip 31 is achieved by manually pressing the control part 313.

[0045] The lower end cover 40 is installed inside the outer cylinder 10 near the lower end. The lower end cover 40 includes a partition seat 41 that closes the lower end opening of the columnar space, that is, the upper end of the partition seat is the bottom of the columnar space. The partition seat 41 can ensure that the grinding beads 100 are accommodated in the columnar space.

[0046] Among them, when the bead separating bar 31 is respectively located at the upper end stop point and the lower end stop point of its sliding stroke, the quantitative bead separating groove 311 is respectively located at the upper side and the lower side of the separating seat 41, that is, the two ends of the movement stroke of the quantitative bead separating groove 311 along the axial movement of the bead separating bar 31 are respectively located at the upper side and the lower side of the separating seat 41, thereby ensuring that the quantitative bead separating groove 311 can quantitatively transport the grinding beads 100 from the columnar space to the lower space of the separating seat 41.

[0047] In order to achieve quantitative capture of the grinding beads 100, in the present embodiment, it is necessary to design the structure of the quantitative bead separation groove 311. Preferably, the height of the quantitative bead separation groove 311 is greater than the diameter of the grinding beads 100 and less than twice the diameter of the grinding beads 100, that is, to ensure that the grinding beads 100 can only be arranged horizontally in the quantitative bead separation groove 311, and thus the length of the quantitative bead separation groove 311 determines the maximum number of grinding beads 100 that it can accommodate.

[0048] In order to achieve variable quantitative bead adding, the present application preferably adopts different lengths of the quantitative bead separation grooves 311 on different bead separation strips 31. For example, in a specific embodiment, the bead separation assembly 30 includes four bead separation strips 31, and the maximum number of grinding beads 100 that can be accommodated in the quantitative bead separation grooves 311 along the length direction is 1, 2, 3, and 4, respectively.

[0049] Through the sliding of a single bead separating bar 31 and the combined sliding of multiple bead separating bars, 1-10 grinding beads can be arbitrarily transported to the lower space of the partition seat 41. For example, if 7 grinding beads need to be transported, the bead separating bar 31 corresponding to the quantitative bead separating groove 311 which can accommodate a maximum number of grinding beads 100 of 3 and 4 respectively is pushed downward, so that 3+4 grinding beads can be transported to the lower space of the partition seat 41.

[0050] The nozzle 50 is detachably connected to the lower end of the outer cylinder 10, preferably by threaded connection. The nozzle 50 is arranged below the partition seat 41, and the lower end of the nozzle 50 has a bead spraying port for only allowing a single grinding bead 100 to pass through at a time.

[0051] The grinding beads 100 fall from the opening of the quantitative bead separation groove 311 into the nozzle 50 and are transported to the designated position through the bead ejection port in sequence.

[0052] Among them, the end of the separator 41 has a conical boss 411, so that the grinding beads 100 at the bottom of the columnar space are located at the upper edge of the separator 41 to ensure that when the quantitative bead separation groove 311 moves downward, the grinding beads 100 can be automatically captured and accommodated by the quantitative bead separation groove 311. More preferably, the upper end of the quantitative bead separation groove 311 has a bead separation protrusion 315.

[0053] In order to enable the grinding beads 100 to automatically slide out of the quantitative bead separation groove 311 , the lower portion of the quantitative bead separation groove 311 has a downwardly inclined slope.

[0054] When the bead adding pen provided by the embodiment of the present application is used, the upper cover 20 is first opened, and a sufficient amount of grinding beads 100 are pre-added from the upper end of the outer tube 10 to the inside. The grinding beads 100 are located at the bottom of the columnar space under the action of gravity, and are dispersed to the upper edge of the partition seat 41 by the conical boss 411. Since the bead dividing bar 31 is axially slidably arranged on the outer tube 10, as the bead dividing bar 31 slides downward, the bead dividing groove 311 quantitatively captures the grinding beads 100 inside the columnar space and then transports them to the bottom of the partition seat 41, and then a determined number of grinding beads 100 fall from the bead dividing groove 311 and are output from the bead ejecting port of the nozzle 50, thereby realizing the quantitative addition of grinding beads. The bead adding pen simplifies the tedious bead adding work and greatly improves the work efficiency.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A ballpoint pen, characterized in that: include: An outer cylinder, with upper and lower ends opened; An upper cover, which is a detachable cover, is arranged on the upper end opening of the outer cylinder. A bead separation assembly, comprising at least one bead separation bar, which is axially slidably disposed on the outer cylinder, and all the bead separation bars are disposed along the circumference of the outer cylinder, the lower part of the bead separation bar is enclosed inside the outer cylinder to form a columnar space, and a quantitative bead separation groove capable of accommodating a certain number of grinding beads is formed on the inner wall of the bead separation bar; A lower end cover is installed at a position near the lower end of the outer cylinder, the lower end cover comprises a separator seat closing the lower end opening of the columnar space, the upper end of the separator seat has a conical boss, so that the grinding beads at the bottom of the columnar space are located at the upper edge of the separator seat, and when the bead separation bar is respectively located at the upper end stop point and the lower end stop point of its sliding stroke, the quantitative bead separation groove is respectively located at the upper side and the lower side of the separator seat; The nozzle is detachably connected to the lower end of the outer cylinder, the nozzle is arranged below the partition seat, and the lower end of the nozzle has a bead spraying port for only allowing a single grinding bead to pass through at a time.

2. The ballpoint pen according to claim 1, characterized in that: The bead splitting assembly further comprises at least one elastic member, each bead splitting strip corresponds to at least one elastic member, and the elastic members are respectively connected to the corresponding bead splitting strip and the outer tube so that the bead splitting strip can slide elastically relative to the outer tube.

3. The ballpoint pen according to claim 1, characterized in that: The lower end cover also includes a lower connecting ring and a column. The lower connecting ring is detachably connected to the inner wall of the outer cylinder. The column is connected to the upper end of the lower connecting ring. The partition seat is connected to the upper end of the column.

4. The ballpoint pen according to claim 1, characterized in that: The upper end of the bead strip has a control part, the lower end of the control part has a guide groove arranged along the length direction of the bead strip, the upper end of the outer tube forms a guide notch corresponding to each guide groove, and the part of the control part located outside the guide groove is located outside the outer tube.

5. The ballpoint pen according to claim 1, characterized in that: The upper end of the quantitative bead separation groove is provided with a bead separation protrusion.

6. The ballpoint pen according to claim 1, characterized in that: The height of the quantitative bead separation groove is greater than the diameter of the grinding beads and less than twice the diameter of the grinding beads.

7. The ballpoint pen according to claim 1, characterized in that: The lengths of the quantitative bead separation grooves on different bead separation strips are different.

8. The ballpoint pen according to claim 7, characterized in that: The bead separation assembly includes four bead separation bars, and the maximum number of grinding beads that can be accommodated in the quantitative bead separation groove along the length direction is 1, 2, 3, and 4 respectively.

9. The ballpoint pen according to claim 1, characterized in that: The lower end of the quantitative bead separation groove has a downwardly inclined slope.

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