Round-bottom flask brush

Abstract

The utility model provides a round-bottom flask brush which comprises a hollow fixing sleeve, the cross section of the hollow fixing sleeve is in a T shape, a winding piece is installed at the upper end of the hollow fixing sleeve, a vertically-arranged cylinder is arranged in the middle of the lower end of the winding piece, the lower end of the cylinder penetrates through the hollow fixing sleeve, and an elastic rod is installed in the middle of the lower end of the cylinder. A plurality of bristles are evenly arranged at the outer end of the elastic rod, a control line is installed at the other end of the elastic rod, the other end of the control line penetrates through the hollow fixing sleeve and is wound in the winding piece, and the control line is located on the outer side of the cylinder. And therefore, the bristles can be tightly attached to the inner walls of the round-bottom flasks of different specifications, the cleaning effect is improved, and practicability and attaching performance are good.

Description

Technical Field

[0001] The utility model relates to a round-bottom flask brush, belonging to the technical field of laboratory cleaning appliances. Background Art

[0002] A round-bottom flask is a transparent glass flask with a spherical bottom. It is a commonly used heating and reaction container in chemical experiments and has a wide range of uses. In order to ensure that the round-bottom flask can be used normally, a flask brush is generally used to clean the round-bottom flask after the experiment.

[0003] The round-bottom flask is characterized by a narrow mouth and a wide body. Existing flask brushes are generally straight brushes with bristles twisted on iron wires of a certain hardness, which cannot brush the inner wall of the round flask and need to be soaked in a corresponding solvent for a period of time before cleaning.

[0004] Chinese patent CN206964323U discloses a round bottom flask cleaning brush, which can clean the curved inner wall of the flask through the curved brush strip. However, the two brush strips are connected in a hinged manner without a force support point. When cleaning, the brush strip and the inner wall of the round bottom flask cannot be effectively attached, which affects the cleaning effect, and the round bottom flask cleaning brush cannot be used for flasks of various specifications. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a round-bottom flask brush to solve the problems raised in the above-mentioned background technology. The utility model can adjust the bending state of the elastic rod so that the bristles can fit tightly with the inner wall of round-bottom flasks of different specifications, thereby improving the cleaning effect and having good practicality and fit.

[0006] In order to achieve the above object, the utility model is realized by the following technical scheme: a round-bottom flask brush, comprising a hollow fixed sleeve, the cross section of the hollow fixed sleeve is T-shaped, a winding piece is installed at the upper end of the hollow fixed sleeve, a vertically arranged cylinder is arranged in the middle of the lower end of the winding piece, and the lower end of the cylinder passes through the hollow fixed sleeve;

[0007] An elastic rod is installed in the middle of the lower end of the cylinder, a plurality of bristles are evenly arranged on the outer end of the elastic rod, a control line is installed on the other end of the elastic rod, the other end of the control line passes through the hollow fixing sleeve and is wound in the winding member, and the control line is located outside the cylinder.

[0008] Furthermore, the winding member comprises a straight tube, the straight tube is fitted on the upper end of the hollow fixing sleeve, a fixing plate is arranged inside the straight tube, and a cylinder is arranged in the middle of the lower end of the fixing plate;

[0009] The upper end of the straight cylinder is slidably connected to the winding cover, a vertically arranged winding post is installed in the middle of the top of the winding cover, and the lower end of the winding post extends into the straight cylinder, the winding post is located on the upper side of the fixing plate, the lower side outer end surface of the winding post is inwardly concave to form a winding groove, and the winding groove is located in the straight cylinder;

[0010] A protective sleeve is installed on the upper end of the fixed plate, and the lower end of the protective sleeve extends to the lower end of the fixed plate. The protective sleeve is located on one side of the winding column, and the upper end of the protective sleeve is located just outside the winding groove. The other end of the control line passes through the hollow fixed sleeve and the protective sleeve and is wound in the winding groove.

[0011] Furthermore, the outer end surface of the straight tube is inwardly recessed to form a plurality of slots, and the slots extend to the inner wall of the straight tube, and the slots are located at the lower side of the fixing plate;

[0012] A plurality of buckles used in conjunction with the slots are equidistantly mounted on the upper end of the hollow fixing sleeve, and the buckles are arranged in a circle. The buckles are located in the straight tube, and the buckle portion of the buckles is inserted into the slots.

[0013] Furthermore, an outer cylinder is installed at the lower end of the winding screw cover, and the outer cylinder and the winding screw cover are integrated into one structure, an inner cylinder is arranged at the upper end of the straight cylinder, and the inner cylinder and the straight cylinder are integrated into one structure, and the inner cylinder is attached to the inner wall of the outer cylinder;

[0014] The outer end surface of the outer cylinder is inwardly recessed to form a plurality of U-shaped holes, and the U-shaped holes extend to the inner wall of the outer cylinder. The plurality of U-shaped holes are arranged in a circle, and the U-shaped holes extend to the lower end of the outer cylinder.

[0015] Furthermore, a ratchet is installed on the upper end of the fixing plate, the ratchet is arranged on the inner wall of the straight tube, and the ratchet is located outside the protective sleeve;

[0016] A vertically arranged mounting column is installed at the top of the winding cover, and the mounting column is located on the other side of the winding column. A pawl used in conjunction with a ratchet is installed at the lower end of the mounting column, and the claw portion of the pawl is engaged with the inner wall of the ratchet.

[0017] Furthermore, a handle is provided at the outer end of the straight tube, and a plurality of protrusions are provided at the outer end of the handle.

[0018] Beneficial effects of the utility model:

[0019] 1. The control line can be wound and reeled in, which can bend the elastic rod, thereby deforming the bristles and fitting them to the inner wall of the round-bottom flask. The bending state of the elastic rod can be adjusted, so that the bristles can fit closely to the inner wall of round-bottom flasks of different specifications, thereby improving the cleaning effect, and having good practicality and fit.

[0020] 2. The claw of the pawl is engaged with the inner wall of the ratchet, so that the control line can only be reeled in. The claw of the pawl can be separated from the ratchet, thereby releasing the restriction on the winding cover, and then the control line can be released, which is convenient for taking and placing the bristles. The winding cover can be restricted by the pawl and the ratchet, effectively avoiding the rebound of the elastic rod during brushing, and ensuring normal brushing operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0022] Figure 1 This is a schematic diagram of the structure of a round-bottom flask brush of the utility model;

[0023] Figure 2 This is a cross-sectional view of a round-bottom flask brush of the utility model;

[0024] Figure 3 It is a three-dimensional diagram of a wire winding and screwing cap in a round bottom flask brush of the utility model;

[0025] Figure 4 It is a three-dimensional diagram of a straight cylinder in a round-bottom flask brush of the utility model;

[0026] Figure 5 This is an assembly diagram of a straight tube and a cylinder in a round-bottom flask brush of the utility model;

[0027] Figure 6 The utility model is a three-dimensional diagram of a hollow fixing sleeve in a round-bottom flask brush.

[0028] In the figure: 1-round bottom flask, 2-control line, 3-hollow fixed sleeve, 4-straight cylinder, 5-winding screw cap, 6-cylinder, 7-elastic rod, 8-bristle, 31-buckle, 41-handle, 42-ratchet, 43-fixed plate, 44-slot, 45-protective sleeve, 51-winding column, 52-winding groove, 53-pawl, 54-mounting column, 401-inner cylinder, 501-outer cylinder, 502-U-shaped hole. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0030] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5The utility model provides a technical solution: a round-bottom flask brush, comprising a hollow fixing sleeve 3 with a T-shaped cross section, a fixing plate 43 is set in a straight cylinder 4, and the straight cylinder 4 is fitted on the upper end of the hollow fixing sleeve 3, and a cylinder 6 with a lower end penetrating the hollow fixing sleeve 3 and arranged vertically is set on the middle part of the lower end of the fixing plate 43, and a mounting carrier is provided for the cylinder 6 through the fixing plate 43;

[0031] The outer end surface of the straight tube 4 is inwardly recessed to form a plurality of slots 44 extending to the inner wall of the straight tube 4 and located at the lower side of the fixing plate 43. A plurality of clips 31 arranged in a circle and located in the straight tube 4 and having their buckles inserted into the slots 44 are equidistantly installed on the upper end of the hollow fixing sleeve 3. The clips 31 cooperate with the slots 44 to make the straight tube 4 and the hollow fixing sleeve 3 detachably connected.

[0032] The winding cover 5 is slidably connected to the upper end of the straight tube 4, and a winding post 51 whose lower end extends into the straight tube 4 and is arranged vertically and located on the upper side of the fixing plate 43 is installed in the middle of the top of the winding cover 5. The lower outer end surface of the winding post 51 is inwardly recessed to form a winding groove 52 located in the straight tube 4, and the control line 2 is wound through the winding groove 52;

[0033] A protective sleeve 45 whose lower end extends to the lower end of the fixing plate 43 and is located on one side of the winding column 51 and whose upper end is located just outside the winding groove 52 is installed on the upper end of the fixing plate 43. The control line 2 is protected and guided by the protective sleeve 45. The elastic rod 7 is installed on the middle part of the lower end of the cylinder 6, and then a plurality of bristles 8 are evenly arranged on the outer end of the elastic rod 7. The plurality of bristles 8 are used together to clean the inner wall of the round-bottom flask 1.

[0034] The control line 2 located outside the cylinder 6 is installed on the other end of the elastic rod 7, and the other end of the control line 2 passes through the hollow fixing sleeve 3 and the protective sleeve 45 and is wound in the winding groove 52. The elastic rod 7 can be pulled by the control line 2, and a handle 41 with multiple protrusions on the outer end is set on the outer end of the straight tube 4. The multiple protrusions are used together to increase the friction coefficient and facilitate the operation of the handle 41.

[0035] When in use, firstly, the elastic rod 7 and the bristles 8 arranged vertically are passed through the mouth of the round-bottom flask 1 and inserted into the body of the round-bottom flask 1. At this time, the horizontal part of the hollow fixing sleeve 3 is attached to the upper end of the round-bottom flask 1, and the vertical part of the hollow fixing sleeve 3 is in the mouth of the round-bottom flask 1, so that the elastic rod 7 and the bristles 8 are stably placed in the round-bottom flask 1.

[0036] Then, the winding screw cover 5 is rotated, so that the winding column 51 is rotated, and then the winding groove 52 is rotated, so that the control line 2 is wound and collected, and then a pulling force is applied to the lower end of the elastic rod 7, so that the elastic rod 7 is bent and an elastic force is generated, so that the bristles 8 are deformed and fit the inner wall of the round-bottom flask 1;

[0037] Then, one hand holds the mouth of the round-bottom flask 1, and the other hand holds and rotates the handle 41, so that the hollow fixing sleeve 3, the straight tube 4, the fixing plate 43, the cylinder 6 and other components rotate, and then the bent elastic rod 7 rotates in the round-bottom flask 1, so that the bristles 8 move along the inner wall of the round-bottom flask 1, and the inner body of the round-bottom flask 1 is brushed;

[0038] Then, the winding screw cap 5 is rotated in the reverse direction, so that the winding column 51 and the winding groove 52 are rotated, so that the control line 2 is released, so that the elastic rod 7 and the bristles 8 return to their original state, and then the elastic rod 7 and the bristles 8 can be taken out of the round-bottom flask 1;

[0039] The bending state of the elastic rod 7 can be adjusted, so that the bristles 8 can fit closely with the inner wall of the round-bottom flask 1 of different specifications, thereby improving the cleaning effect and having good practicality and fit.

[0040] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the outer cylinder 501 which is an integrated structure with the winding screw cover 5 is installed on the lower end of the winding screw cover 5, and the inner cylinder 401 which is an integrated structure with the straight cylinder 4 and is attached to the inner wall of the outer cylinder 501 is set on the upper end of the straight cylinder 4. The outer cylinder 501 and the inner cylinder 401 are used together to make the winding screw cover 5 and the straight cylinder 4 movably connected;

[0041] The outer end surface of the outer cylinder 501 is inwardly recessed to form a plurality of U-shaped holes 502 arranged in a circular shape and extending to the inner wall of the outer cylinder 501 and to the lower end of the outer cylinder 501. The plurality of U-shaped holes 502 are used together to provide an elastic space for operation between the outer cylinder 501 and the inner cylinder 401.

[0042] The ratchet 42 arranged on the inner wall of the straight tube 4 and located outside the protective sleeve 45 is installed on the upper end of the fixing plate 43, and the mounting post 54 located on the other side of the winding post 51 and arranged vertically is installed on the top of the inner part of the winding cover 5, and then the pawl 53 whose claw part is engaged with the inner wall of the ratchet 42 is installed on the lower end of the mounting post 54. The mounting post 54 provides a mounting carrier for the pawl 53, and the pawl 53 is used in conjunction with the ratchet 42 to limit the rotation of the winding cover 5.

[0043] Before winding the line, the winding cover 5 is pressed downward, so that the outer cylinder 501 moves downward to the limit position along the inner cylinder 401, so that the claw of the pawl 53 is engaged with the inner wall of the ratchet wheel 42, and then the winding cover 5 is rotated, so that the winding column 51 and the winding groove 52 are rotated, so that the control line 2 is wound;

[0044] At the same time, the winding cover 5 rotates to move the mounting post 54, which causes the claw of the pawl 53 to move along one direction on the inner wall of the ratchet 42, and the engagement of the claw of the pawl 53 with the ratchet 42 restricts the winding cover 5 from rotating, so that the control line 2 can only be wound up;

[0045] After brushing is completed, the winding cover 5 is pulled upward, so that the claw of the pawl 53 is separated from the ratchet 42, thereby releasing the restriction on the winding cover 5. At this time, the elastic rod 7 will return to its original state and pull the control line 2, so that the winding cover 5, the winding column 51 and the winding groove 52 rotate in the opposite direction, and then the control line 2 is released, which is convenient for taking and placing the bristles 8;

[0046] The wire winding cover 5 can be restricted by the pawl 53 and the ratchet 42, so as to effectively avoid the rebound of the elastic rod 7 during brushing, thereby ensuring the normal brushing operation.

[0047] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A round bottom flask brush, characterized in that: It comprises a hollow fixing sleeve (3), the cross section of the hollow fixing sleeve (3) is T-shaped, a winding piece is installed at the upper end of the hollow fixing sleeve (3), a vertically arranged cylinder (6) is arranged in the middle of the lower end of the winding piece, and the lower end of the cylinder (6) passes through the hollow fixing sleeve (3); An elastic rod (7) is installed in the middle of the lower end of the cylinder (6), and a plurality of bristles (8) are evenly arranged on the outer end of the elastic rod (7). A control wire (2) is installed at the other end of the elastic rod (7), and the other end of the control wire (2) passes through the hollow fixing sleeve (3) and is wound in the winding member, and the control wire (2) is located outside the cylinder (6).

2. The round-bottom flask brush according to claim 1, characterized in that: The winding member comprises a straight cylinder (4), the straight cylinder (4) is fitted on the upper end of the hollow fixed sleeve (3), a fixed plate (43) is arranged inside the straight cylinder (4), and a cylinder (6) is arranged in the middle of the lower end of the fixed plate (43); The upper end of the straight cylinder (4) is slidably connected to the winding cover (5), a winding post (51) arranged vertically is installed in the middle of the top end inside the winding cover (5), and the lower end of the winding post (51) extends into the straight cylinder (4), the winding post (51) is located on the upper side of the fixing plate (43), the lower side outer end surface of the winding post (51) is inwardly concave to form a winding groove (52), and the winding groove (52) is located in the straight cylinder (4); A protective sleeve (45) is installed at the upper end of the fixing plate (43), and the lower end of the protective sleeve (45) extends to the lower end of the fixing plate (43). The protective sleeve (45) is located on one side of the winding column (51), and the upper end of the protective sleeve (45) is located directly outside the winding groove (52). The other end of the control line (2) passes through the hollow fixing sleeve (3) and the protective sleeve (45) and is wound in the winding groove (52).

3. The round-bottom flask brush according to claim 2, characterized in that: The outer end surface of the straight cylinder (4) is inwardly recessed to form a plurality of slots (44), and the slots (44) extend to the inner wall of the straight cylinder (4), and the slots (44) are located at the lower side of the fixing plate (43); A plurality of buckles (31) for use with the clamping groove (44) are equidistantly mounted on the upper end of the hollow fixing sleeve (3), and the plurality of buckles (31) are arranged in a circular shape. The buckles (31) are located in the straight tube (4), and the buckle portion of the buckle (31) is clamped in the clamping groove (44).

4. The round-bottom flask brush according to claim 2, characterized in that: An outer cylinder (501) is installed at the lower end of the winding screw cover (5), and the outer cylinder (501) and the winding screw cover (5) are integrated into one structure; an inner cylinder (401) is arranged at the upper end of the straight cylinder (4), and the inner cylinder (401) and the straight cylinder (4) are integrated into one structure; the inner cylinder (401) is attached to the inner wall of the outer cylinder (501); The outer end surface of the outer cylinder (501) is recessed inward to form a plurality of U-shaped holes (502), and the U-shaped holes (502) extend to the inner wall of the outer cylinder (501). The plurality of U-shaped holes (502) are arranged in a circular shape, and the U-shaped holes (502) extend to the lower end of the outer cylinder (501).

5. The round-bottom flask brush according to claim 2, characterized in that: A ratchet (42) is installed on the upper end of the fixing plate (43), and the ratchet (42) is arranged on the inner wall of the straight cylinder (4), and the ratchet (42) is located outside the protective sleeve (45); A vertically arranged mounting post (54) is installed at the top end of the winding rotary cover (5), and the mounting post (54) is located on the other side of the winding post (51). A ratchet pawl (53) used in conjunction with the ratchet wheel (42) is installed at the lower end of the mounting post (54), and the claw portion of the ratchet pawl (53) is engaged with the inner wall of the ratchet wheel (42).

6. The round-bottom flask brush according to claim 5, characterized in that: A handle (41) is provided at the outer end of the straight tube (4), and a plurality of protrusions are provided at the outer end of the handle (41).

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