Conical flask cleaning brush for soil detection test
By designing an adjustable conical flask cleaning brush, the problem of traditional cleaning brushes being unable to thoroughly clean the dead corners and liquid splashes of conical flasks is solved, achieving efficient and safe cleaning results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NORTHWEST INST OF ECO ENVIRONMENT & RESOURCES CAS
- Filing Date
- 2025-03-14
- Publication Date
- 2026-04-28
AI Technical Summary
Traditional cleaning brushes are ineffective at thoroughly cleaning the hard-to-reach corners inside conical flasks, especially at the bottom, and pose a safety hazard of liquid splashing.
A conical bottle cleaning brush was designed, comprising an outer sleeve, a movable rod, and an adjustment component. The movable rod can switch between a retracted and a usable state. Combined with the cleaning rod and the adjustment component, the angle and position can be flexibly adjusted to reach deep into the bottle neck and bottom corners for cleaning. The cleaning rod can also be stored inside the sleeve to prevent liquid splashing.
It improves cleaning efficiency, thoroughly removes residues, reduces safety hazards, is easy to carry and store, and reduces the impact of liquid splashes on subsequent experiments.
Smart Images

Figure CN224165908U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of laboratory supplies technology, and in particular, to a conical flask cleaning brush for soil testing. Background Technology
[0002] Erlenmeyer flasks are indispensable glass instruments in laboratories, commonly used as reaction vessels for reagents or storage containers for liquids. After use, reagent and sample residues often remain inside the flask, especially in soil-related experiments where soil particles may remain. Ordinary rinsing may not completely remove them. Due to the unique structure of the Erlenmeyer flask, which is narrower at the top and wider at the bottom, it is difficult to reach the body and bottom edge during cleaning. Traditional cleaning brushes are often incomplete, and the brush can easily splash liquid when removed, adversely affecting subsequent experiments and creating safety hazards. Furthermore, the fixed shape and size of ordinary cleaning brushes make it difficult to adapt to the cleaning needs of different areas inside the Erlenmeyer flask, especially the hard-to-reach corners at the bottom, which are often not thoroughly cleaned. Utility Model Content
[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a conical flask cleaning brush for soil testing.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0005] A conical flask cleaning brush for soil testing includes: an outer sleeve; a movable rod having a retracted state and an active state, which is movably inserted through the outer sleeve to switch between the retracted and active states, wherein the bottom end of the movable rod extends out of the outer sleeve in the active state; a cleaning rod having a brushing structure, which is installed at the bottom end of the movable rod and can be adjusted relative to the movable rod; and an adjustment component movably installed on the movable rod for pushing the cleaning rod open and supporting the inner side of the opened cleaning rod.
[0006] Furthermore, the movable rod has a central through hole at its center, and the bottom peripheral wall of the central through hole has an installation notch. The upper end of the cleaning rod is hinged to the installation notch, and the cleaning rod can retract into the installation notch.
[0007] Furthermore, the adjustment assembly includes a push ring; the push ring is embedded in the central through hole and can move up and down in the central through hole, and the outer periphery of the push ring is provided with a push block embedded in the mounting notch and can move up and down along the mounting notch, and the push block can push the cleaning rod to open outward when it moves upward.
[0008] Furthermore, the adjusting assembly also includes a threaded rod; the upper end of the central through hole is provided with a first threaded hole; the threaded rod is threadedly connected to the first threaded hole, the bottom of the threaded rod is provided with a post, and the pushing ring is movably sleeved on the threaded rod and can be pushed upward by the post.
[0009] Furthermore, the cleaning rod has a first chamfer on the inner side of its lower end, and the push block has a second chamfer on the outer side of its upper end.
[0010] Furthermore, the upper end of the threaded rod protrudes from a movable rod and is radially inserted with an operating rod.
[0011] Furthermore, the outer sleeve has an inwardly protruding first annular retaining ring in the middle, the movable rod has an outwardly protruding second annular retaining ring on its peripheral wall, and a compression spring is sleeved on the movable rod. The compression spring is located between the first and second annular retaining rings and is used to apply a force to the movable rod to switch it from the use state to the retracted state.
[0012] Furthermore, the outer peripheral wall of the movable rod is detachably connected to an actuating post, the outer sleeve is provided with a guide groove, the actuating post passes through the guide groove and can move along the guide groove, and the outer end of the actuating post protrudes from the outer sleeve.
[0013] Furthermore, the guide groove includes a main groove, a transition groove, and a retaining groove; when the actuating post abuts against the top wall of the main groove, the movable rod is in a retracted state; when the actuating post abuts against the top wall of the retaining groove, the movable rod is in a usable state.
[0014] Furthermore, the outer peripheral wall of the movable rod is provided with a second threaded hole, and the inner end of the actuating column is provided with a stud that matches the second threaded hole.
[0015] This utility model has the following beneficial effects:
[0016] Through the coordination of the movable rod and the cleaning rod, along with the adjustment and support of the regulating components, the opening angle and position of the cleaning rod can be flexibly adjusted according to the internal shape of the conical flask. This allows the cleaning rod to reach deep into the neck and bottom corners of the flask, thoroughly removing residual chemicals and samples, significantly improving cleaning efficiency and effectiveness. The movable rod allows the cleaning brush to flexibly switch between a retracted and active state. When in use, the cleaning rod extends smoothly into the outer sleeve, while when not in use, it can be stored inside the outer sleeve for easy carrying and storage. Furthermore, storing the cleaning rod inside the outer sleeve avoids the liquid splashing problem that occurs when traditional cleaning brushes are removed, reducing adverse effects on subsequent experiments and lowering safety hazards during operation.
[0017] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description
[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:
[0019] Figure 1 This is a schematic diagram of the structure of the present invention in its folded state according to an embodiment;
[0020] Figure 2 yes Figure 1 A sectional view;
[0021] Figure 3 yes Figure 2 Enlarged view of point A;
[0022] Figure 4 This is a structural schematic diagram of the usage state of an embodiment of this utility model;
[0023] Figure 5 yes Figure 4 A sectional view;
[0024] Figure 6 yes Figure 5 Enlarged view of point B;
[0025] Figure 7 This is a schematic diagram of the exploded state structure of this utility model;
[0026] Figure 8 This is a schematic diagram of the mating structure of the movable rod and the push ring.
[0027] Legend:
[0028] Outer sleeve 100, first annular retaining ring 110, guide groove 120, main groove 121, transition groove 122, and retaining groove 123;
[0029] Movable rod 200, central through hole 210, mounting notch 211, first threaded hole 212, second annular retaining ring 220, compression spring 230, second threaded hole 240;
[0030] Cleaning rod 300, first chamfer 310;
[0031] Adjustment component 400, push ring 410, push block 411, second chamfer 412, threaded rod 420, column head 421, operating lever 422;
[0032] Toggle column 500. Detailed Implementation
[0033] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.
[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0035] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0036] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.
[0037] Please refer to Figure 1 and Figure 2 A preferred embodiment of the present invention provides a conical flask cleaning brush for soil testing, comprising an outer sleeve 100, a movable rod 200, a cleaning rod 300, and an adjustment component 400.
[0038] The outer sleeve is hollow with openings at both ends at the top.
[0039] The movable rod 200 has a retracted state and a working state. In the retracted state, the bottom of the movable rod 200 retracts into the outer sleeve 100. The movable rod 200 is movably inserted through the outer sleeve 100 to achieve the switching between the retracted state and the working state. In the working state, the bottom end of the movable rod 200 extends out of the outer sleeve 100.
[0040] The cleaning rod 300 is equipped with a brushing structure, which is concentrated in the bottom area of the cleaning rod 300, mainly located on the bottom surface and the outer side of the bottom, thereby brushing the lower and surrounding areas. The brushing structure mainly consists of bristles. The cleaning rod 300 is installed at the bottom end of the movable rod 200 and can be adjusted relative to the movable rod 200 to adapt to the inner wall of conical bottles of different shapes.
[0041] The adjustment component 400 is movably mounted on the movable rod 200 and is used to push the cleaning rod 300 open and support the inside of the opened cleaning rod 300.
[0042] This utility model provides a preferred embodiment of a conical flask cleaning brush for soil testing. Through the cooperation of the movable rod 200 and the cleaning rod 300, and the adjustment and support function of the adjusting component 400, the cleaning rod 300 can flexibly adjust its opening angle and position according to the internal shape of the conical flask. This allows the cleaning rod 300 to reach deep into the neck and bottom corners of the conical flask, thoroughly removing residual chemicals and samples, significantly improving cleaning efficiency and effectiveness. The movable rod 200 allows the cleaning brush to flexibly switch between a retracted state and an active state. When in use, the cleaning rod 300 can smoothly extend out of the outer sleeve 100, while when not in use, it can be stored inside the outer sleeve 100 for easy carrying and storage. Furthermore, storing the cleaning rod 300 inside the outer sleeve 100 avoids the problem of liquid splashing when removing traditional cleaning brushes, reducing adverse effects on subsequent experiments and also lowering safety hazards during operation.
[0043] In some embodiments of this utility model, the movable rod 200 has a central through hole 210, and the bottom peripheral wall of the central through hole 210 has an installation notch 211. The upper end of the cleaning rod 300 is hinged to the installation notch 211, and the cleaning rod 300 can retract into the installation notch 211. This not only optimizes the storage method of the cleaning brush and reduces the space occupied when folded, but also allows the cleaning rod 300 to be quickly unfolded during use, improving the ease of use of the cleaning brush.
[0044] Reference Figures 5 to 8 In a further embodiment of this utility model, the adjusting component 400 includes a pushing ring 410; the pushing ring 410 is embedded in the central through hole 210 and can move up and down in the central through hole 210; the outer periphery of the pushing ring 410 is provided with a pushing block 411 embedded in the mounting notch 211 and can move up and down along the mounting notch 211; the upward movement of the pushing block 411 can push the cleaning rod 300 to open outward. The pushing ring 410 can be embedded in the central through hole 210 and move up and down along the mounting notch 211; when the pushing block 411 moves upward, it can push the cleaning rod 300 to open outward, thereby realizing the rapid unfolding and positioning of the cleaning rod 300. This design not only improves the unfolding efficiency of the cleaning brush, but also ensures that the cleaning rod 300 is supported and limited on its inner side after it is unfolded, so that it can have sufficient force to contact the inner wall of the conical bottle after it is unfolded, thereby improving the scrubbing effect.
[0045] Reference Figures 5 to 8In a further embodiment of this utility model, the adjusting component 400 further includes a threaded rod 420; the upper end of the central through hole 210 is provided with a first threaded hole 212; the threaded rod 420 is threadedly connected to the first threaded hole 212, and the bottom of the threaded rod 420 is provided with a post head 421; the pushing ring 410 is movably sleeved on the threaded rod 420 and can be pushed upward by the post head 421. The pushing ring 410 has a central hole for sleeved on the threaded rod 420; it can be understood that the diameter of the central hole of the threaded rod 420 is smaller than that of the post head 421. The threaded rod 420 realizes the lifting and lowering adjustment function of the pushing ring 410 by threading its connection with the first threaded hole 212 on the movable rod 200. The post head 421 at the bottom of the threaded rod 420 can push the pushing ring 410 upward, thereby causing the cleaning rod 300 to open. This improves the stability of the cleaning rod 300 after it opens, and also realizes stepless adjustment through the threaded connection, enhancing the applicability and flexibility of the cleaning brush.
[0046] In a further embodiment of this utility model, the cleaning rod 300 has a first chamfer 310 on its lower inner side, and the pushing block 411 has a second chamfer 412 on its upper outer side. The first chamfer 310 and the second chamfer 412 allow the cleaning rod 300 to contact the pushing block 411 more smoothly when it opens, reducing friction and wear. Figure 3 When the cleaning rod 300 is in the folded state shown, it is easier to push it upwards to open smoothly, and it also reduces the overall radial dimension when folded.
[0047] In a further embodiment of this utility model, the upper end of the threaded rod 420 protrudes from the movable rod 200 and is radially inserted with an operating rod 422. The operating rod 422 provides a convenient operating method for the user, allowing the user to adjust the position of the threaded rod 420 by rotating the operating rod 422, thereby opening and closing the cleaning rod 300 and improving the convenience of adjustment. The operating rod 422 is detachably connected to the movable rod 200, for example, the operating rod 422 is threadedly connected to the movable rod 200.
[0048] Reference Figure 3 and Figure 5In a further embodiment of this utility model, the outer sleeve 100 is provided with an inwardly protruding first annular retaining ring 110 in the middle, and the movable rod 200 is provided with an outwardly protruding second annular retaining ring 220 on its peripheral wall. A compression spring 230 is sleeved on the movable rod 200, and the compression spring 230 is located between the first annular retaining ring 110 and the second annular retaining ring 220, which is used to apply a force to the movable rod 200 to switch from the use state to the retracted state. The first annular retaining ring 110 on the outer sleeve 100 and the second annular retaining ring 220 on the movable rod 200 allow the compression spring 230 to be stably installed between them. The force of the compression spring 230 can push the movable rod 200 to automatically switch from the use state to the retracted state, reducing the complexity of user operation. This allows the movable rod 200 to be stably in the retracted state when not subjected to external force, improving the ease of use of the cleaning brush. Furthermore, the elastic reset function enhances stability and reliability.
[0049] Reference Figure 1 and Figure 4 In a further embodiment of this utility model, a toggle post 500 is detachably connected to the outer peripheral wall of the movable rod 200. The outer sleeve 100 is provided with a guide groove 120. The toggle post 500 passes through the guide groove 120 and can move along the guide groove 120. The outer end of the toggle post 500 protrudes from the outer sleeve 100. The state of the movable rod 200 can be switched by moving the toggle post 500 along the guide groove 120. This not only provides users with an intuitive operation method, but also ensures the stability of the movable rod 200 during the switching process through the limiting function of the guide groove 120, further improving the user experience of the cleaning brush.
[0050] Reference Figure 1 and Figure 4 In a further embodiment of this utility model, the guide groove 120 includes a main groove 121, a transition groove 122, and a retaining groove 123; when the actuating post 500 abuts against the top wall of the main groove 121, the movable rod 200 is in a retracted state; when the actuating post 500 abuts against the top wall of the retaining groove 123, the movable rod 200 is in a usable state. The actuating post 500 can move along the main groove 121, the transition groove 122, and the retaining groove 123, thereby stopping at the main groove 121 or the retaining groove 123, and with the cooperation of the compression spring, it can stably stop at the top of the main groove 121 or the retaining groove 123, thereby maintaining the retracted or usable state. The segmented structure of the guide groove 120 realizes the precise switching of the state of the movable rod 200, ensuring the rapid conversion of the cleaning brush between idle and usable states, and maintaining a stable state after switching.
[0051] Reference Figure 7In a further embodiment of this utility model, the outer peripheral wall of the movable rod 200 is provided with a second threaded hole 240, and the inner end of the actuating post 500 is provided with a stud adapted to the second threaded hole 240. The actuating post 500 can be firmly installed on the movable rod 200 through a threaded connection, which improves the installation stability of the actuating post 500. Furthermore, the threaded connection enables quick disassembly and replacement, enhancing the maintenance convenience and service life of the cleaning brush.
[0052] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A conical flask cleaning brush for soil testing, characterized in that, include: Outerwear tube (100); The movable rod (200) has a retracted state and a working state. It is movably inserted through the outer sleeve (100) to realize the switching between the retracted state and the working state. In the working state, the bottom end of the movable rod (200) extends out of the outer sleeve (100). A cleaning rod (300) is provided with a brushing structure and is installed at the bottom of a movable rod (200), which can be adjusted relative to the movable rod (200); An adjustment component (400) is movably mounted on a movable rod (200) for pushing the cleaning rod (300) open and supporting the inside of the opened cleaning rod (300).
2. The conical flask cleaning brush for soil testing according to claim 1, characterized in that, The movable rod (200) has a central through hole (210) at its center. The bottom peripheral wall of the central through hole (210) has an installation notch (211). The upper end of the cleaning rod (300) is hinged to the installation notch (211). The cleaning rod (300) can retract into the installation notch (211).
3. The conical flask cleaning brush for soil testing according to claim 2, characterized in that, The adjustment assembly (400) includes a push ring (410); the push ring (410) is embedded in the central through hole (210) and can move up and down in the central through hole (210); the outer periphery of the push ring (410) is provided with a push block (411) embedded in the mounting notch (211) and can move up and down along the mounting notch (211); the upward movement of the push block (411) can push the cleaning rod (300) to open outward.
4. The conical flask cleaning brush for soil testing according to claim 3, characterized in that, The adjusting assembly (400) also includes a threaded rod (420); the upper end of the central through hole (210) is provided with a first threaded hole (212); the threaded rod (420) is threadedly connected to the first threaded hole (212), the bottom of the threaded rod (420) is provided with a column head (421), and the pushing ring (410) is movably sleeved on the threaded rod (420) and can be pushed upward by the column head (421).
5. The conical flask cleaning brush for soil testing according to claim 4, characterized in that, The cleaning rod (300) has a first chamfer (310) on the inner side of its lower end, and the push block (411) has a second chamfer (412) on the outer side of its upper end.
6. The conical flask cleaning brush for soil testing according to claim 4, characterized in that, The upper end of the threaded rod (420) protrudes from the movable rod (200) and is radially inserted with an operating rod (422).
7. The conical flask cleaning brush for soil testing according to claim 1, characterized in that, The outer sleeve (100) has an inwardly protruding first annular retaining ring (110) in the middle, and the movable rod (200) has an outwardly protruding second annular retaining ring (220) on its peripheral wall. A compression spring (230) is sleeved on the movable rod (200). The compression spring (230) is located between the first annular retaining ring (110) and the second annular retaining ring (220) and is used to apply a force to the movable rod (200) to switch from the use state to the retracted state.
8. The conical flask cleaning brush for soil testing according to claim 1, characterized in that, The movable rod (200) has a detachable actuating post (500) on its outer peripheral wall. The outer sleeve (100) is provided with a guide groove (120). The actuating post (500) passes through the guide groove (120) and can move along the guide groove (120). The outer end of the actuating post (500) protrudes out of the outer sleeve (100).
9. The conical flask cleaning brush for soil testing according to claim 8, characterized in that, The guide groove (120) includes a main groove (121), a transition groove (122), and a slot (123); when the actuating post (500) abuts against the top wall of the main groove (121), the movable rod (200) is in a retracted state; when the actuating post (500) abuts against the top wall of the slot (123), the movable rod (200) is in a working state.
10. The conical flask cleaning brush for soil testing according to claim 8, characterized in that, The outer peripheral wall of the movable rod (200) is provided with a second threaded hole (240), and the inner end of the actuating column (500) is provided with a stud that matches the second threaded hole (240).