A cleaning brush

Abstract

The utility model discloses a kind of cleaning brushes, including brush body, the front end of the brush body is equipped with brush head, the brush body is equipped with through-hole, the sidewall of the brush body is equipped with first group of through medium holes, the brush head is equipped with second group of through medium holes, first group of through medium holes and second group of through medium holes are connected with through-hole respectively, first group of bristles is equipped on the brush body, second group of bristles is equipped on the brush head, the hardness and / or arrangement density of second group of bristles is greater than first group of bristles.The utility model has the advantages of reasonable design, good cleaning effect.

Description

Technical Field

[0001] This utility model relates to the field of sample cleaning technology, and in particular to a cleaning brush. Background Technology

[0002] In the field of coal testing, the coal sample preparation barrel is a key specialized device for receiving and transferring raw coal and coal samples in the coal sampling and sample preparation process. The cleanliness of its inner wall directly determines the accuracy of the coal sample test results. If the barrel wall has residues of previous coal samples, dampness, coal dust, or lumps, it will lead to cross-contamination of newly collected coal samples, resulting in deviations in the detection of core indicators such as ash content, moisture, and calorific value. This will affect the scientific nature of coal quality assessment, trade settlement, and production process adjustments. Therefore, the coal sample preparation barrel must meet the strict requirement of "thorough cleaning after each use".

[0003] Current coal bin cleaning brushes still suffer from significant industry pain points and multiple defects: a) Insufficient cleaning power: Coal samples stuck to the bottom and walls of the bin are difficult to clean; traditional nylon bristles cannot peel off or clean hardened coal lumps; while steel wire bristles are ineffective at cleaning fine dust. b) Potential coal sample contamination: In some sampling environments with high humidity or low winter temperatures, coal sample residues are prone to absorbing water and freezing or worsening adhesion. Traditional cleaning brushes cannot solve the problems of "frozen adhesion" and "wet adhesion," directly creating a potential coal sample contamination hazard. c) Poor adaptability: In modern sampling processes, coal bins are diverse, including round, square, and deep trays; traditional cleaning brushes cannot clean all types of sample bins.

[0004] Chinese patent document CN112568587A discloses a multifunctional brush that adds a top high-pressure blowing function compared to traditional brushes, which can clean residual coal samples at the bottom of the sample barrel. However, high-pressure blowing (or high-pressure water washing) cannot quickly and effectively clean the hardened coal blocks at the corners of the bottom of the sample barrel; at the same time, due to the lack of side blowing, the adhering dust on the barrel wall cannot be effectively cleaned. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a cleaning brush with a reasonable design and good cleaning effect.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A cleaning brush includes a brush body, a brush head at the front end of the brush body, a through hole in the brush body, a first group of through-medium holes in the side wall of the brush body, and a second group of through-medium holes in the brush head. The first and second groups of through-medium holes are respectively connected to the through hole. A first group of bristles is provided on the brush body, and a second group of bristles is provided on the brush head. The hardness and / or arrangement density of the second group of bristles is greater than that of the first group of bristles.

[0007] As a further improvement to the above technical solution: The first bristle group is provided in multiple groups at intervals along the length of the brush body, and the first bristle group includes multiple soft bristle bundles arranged at intervals along the circumference of the brush body.

[0008] The second bristle group includes multiple stiff bristle bundles, the arrangement density of which is greater than that of soft bristle bundles.

[0009] The hard bristle bundles are steel wire bristles, and the soft bristle bundles are nylon bristles.

[0010] The first medium passage hole group is provided with multiple groups at intervals along the length of the brush body. The first medium passage hole group includes multiple first medium passage holes arranged at intervals along the circumference of the brush body, and the first medium passage holes of two adjacent groups of the first medium passage hole groups are staggered.

[0011] The second medium passage group includes a plurality of second medium passages.

[0012] The brush head is hemispherical.

[0013] The brush body has a brush holder at its rear end, which is used to connect to an external motion mechanism and / or purging mechanism.

[0014] The brush holder is detachably connected to the brush body.

[0015] The brush body is made of plastic, and the brush base is made of metal.

[0016] Compared with the prior art, the advantages of this utility model are: 1. The cleaning brush of this utility model adopts a multi-segment bristle design. The second bristle group of the brush head can sweep the bottom of the barrel where coal samples are prone to hardening and caking, while the first bristle group of the brush body can sweep the barrel wall where coal samples are easy to adhere to but do not harden. The design is reasonable, highly targeted, and has a good cleaning effect. The through hole, the first through medium hole group and the second through medium hole group form an air passage. During sweeping, high-temperature gas is introduced into the air passage to blow on the bottom and barrel wall, reducing the water absorption, freezing or adhesion of coal sample residue, and the cleaning effect is better.

[0017] 2. In the cleaning brush of this utility model, the first bristle group is arranged at intervals along the length of the brush body, so that there is a gap between adjacent first bristle groups, which avoids a large amount of coal sample being swept off adhering to the soft bristle bundle, improves the high-temperature gas blowing effect, and extends the service life of the cleaning brush.

[0018] 3. The cleaning brush of this utility model has adjacent soft brush bristle bundles staggered, which reduces dead corners during the process of high-temperature gas blowing the inner wall of the barrel.

[0019] 4. The cleaning brush of this utility model has a motion mechanism that provides the power for the rotation and displacement of the cleaning brush, making it adaptable to cleaning various types of sample containers such as round barrels, square barrels, and deep pans, with strong applicability; the blowing mechanism provides high-temperature gas to the internal air passage of the cleaning brush, which quickly softens frozen and wet coal samples, and at the same time can blow away the adhering fine coal dust, effectively avoiding cross-contamination of coal samples.

[0020] 5. The cleaning brush of this utility model features a hemispherical brush head design that better conforms to the shape of the sample container bottom. During the cleaning process, the stiff bristles can fully contact both the central area and the edges of the container bottom, thus thoroughly cleaning away hardened coal samples and reducing the existence of cleaning dead zones. Simultaneously, this brush head shape allows for smoother rotation during cleaning, preventing jamming due to mismatch with the container bottom shape, thereby improving cleaning efficiency and effectiveness.

[0021] 6. In this utility model, the cleaning brush cannot guarantee the firmness of the nylon bristles when made of metal, so only plastic material can be used. However, plastic material cannot meet the connection strength between the brush holder and the external motion mechanism. Therefore, the brush holder and brush body adopt a separate material design, which can take into account both the firmness of the bristle implantation and the connection strength of the cleaning brush. Attached Figure Description

[0022] Figure 1 This is a structural schematic diagram of the cleaning brush of this utility model.

[0023] Figure 2 This is a side sectional view of the cleaning brush of this utility model.

[0024] The labels in the diagram represent: 1. Brush body; 11. Soft bristles; 12. Through hole; 13. First through medium hole; 2. Brush head; 21. Hard bristle bundle; 22. Second through medium hole; 3. Brush base. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] like Figure 1 and Figure 2 As shown, the cleaning brush of this embodiment includes a brush body 1, a brush head 2 at the front end of the brush body 1, a through hole 12 inside the brush body 1, a first medium passage hole group inside the side wall of the brush body 1, and a second medium passage hole group inside the brush head 2. The first medium passage hole group and the second medium passage hole group are respectively connected to the through hole 12. A first bristle group is provided on the brush body 1, and a second bristle group is provided on the brush head 2. The hardness and / or arrangement density of the second bristle group is greater than that of the first bristle group.

[0030] In this embodiment, the cleaning brush has its rear end connected to an external motion mechanism and a blowing mechanism during use. The motion mechanism provides the cleaning brush with the power for rotation and displacement, enabling it to clean along the inner wall of the sample container and also clean the bottom of the container. During the cleaning process, the second bristle group with higher hardness and / or density cleans the bottom of the container where coal samples are prone to hardening and caking, while the second bristle group with lower hardness and / or density cleans the container wall where coal samples tend to adhere but do not harden. The blowing mechanism provides high-temperature gas to the internal air passage of the cleaning brush to quickly soften and blow away the coal sample residue adhering to the container wall and bottom. Finally, the coal dust generated during the cleaning process is removed by an external dust removal system, thus completing the cleaning of the sample container.

[0031] The cleaning brush in this embodiment adopts a multi-segment bristle design. The second bristle group of the brush head 2 can sweep the bottom of the barrel where coal samples are prone to hardening and caking, while the first bristle group of the brush body 1 can sweep the barrel wall where coal samples are easy to adhere to but do not harden. The design is reasonable, highly targeted, and has a good cleaning effect. The through hole 12, the first through medium hole group, and the second through medium hole group form an air passage. During sweeping, high-temperature gas is introduced into the air passage to blow on the bottom and barrel wall, reducing the water absorption, freezing, or adhesion of coal sample residue, resulting in a better cleaning effect.

[0032] Furthermore, in this embodiment, multiple sets of first bristle groups are spaced apart along the length of the brush body 1. Each first bristle group includes multiple soft bristle bundles 11 arranged circumferentially along the brush body 1. The spaced-apart arrangement of the first bristle groups along the length of the brush body 1 creates gaps between adjacent first bristle groups, preventing a large amount of swept coal sample from adhering to the soft bristle bundles 11, improving the high-temperature gas blowing effect, and extending the service life of the cleaning brush. Preferably, in this embodiment, adjacent soft bristle bundles 11 are staggered to reduce dead corners during the cleaning process of the inner wall of the barrel.

[0033] Furthermore, in this embodiment, the second bristle group includes multiple stiff bristle bundles 21, and the arrangement density of the stiff bristle bundles 21 is greater than that of the soft bristle bundles 11. The second bristle group uses stiff bristle bundles 21 with greater stiffness and arrangement density, which enables it to sweep and brush all corners of the bottom of the bucket, resulting in better cleaning effect and fewer blind spots.

[0034] Furthermore, in this embodiment, the hard bristle bundle 21 is made of steel wire bristles, and the soft bristle bundle 11 is made of nylon bristles. Steel wire bristles are more effective at scraping and breaking up clumps of coal, while nylon bristles are more effective at cleaning up fine, adhering coal dust, resulting in a more efficient and cleaner cleaning process. Of course, in other embodiments, both the first and second bristle groups can be made of soft bristle bundles 11 made of nylon bristles, with the arrangement density of the soft bristle bundles 11 in the second bristle group being greater than that in the first bristle group.

[0035] Furthermore, in this embodiment, multiple sets of first medium-passing holes are spaced apart along the length of the brush body 1. Each first medium-passing hole set includes multiple first medium-passing holes 13 spaced apart along the circumference of the brush body 1, with the first medium-passing holes 13 of adjacent sets of first medium-passing hole sets being staggered. The staggered distribution of adjacent soft bristle bundles 11 reduces dead angles during the high-temperature gas blowing process on the inner wall of the barrel.

[0036] Furthermore, in this embodiment, the second medium passage group includes multiple second medium passages 22, which provides more comprehensive blowing to the bottom of the barrel.

[0037] Furthermore, in this embodiment, the rear end of the brush body 1 is provided with a brush seat 3, which is used to connect to an external motion mechanism and / or a blowing mechanism. The motion mechanism can provide the cleaning brush with the power for rotation and displacement, making the cleaning brush adaptable to cleaning various types of sample containers such as round barrels, square barrels, and deep pans, thus having strong applicability; the blowing mechanism provides high-temperature gas to the internal air passage of the cleaning brush, quickly softening frozen and wet sticky coal samples, while also blowing away adhering fine coal dust, effectively avoiding cross-contamination of coal samples. Of course, in other embodiments, the blowing mechanism can also introduce clean water or cleaning fluid into the cleaning brush.

[0038] Furthermore, in this embodiment, the brush head 2 is hemispherical. This hemispherical design allows for better conformity to the shape of the sample container's bottom. During cleaning, the stiff bristles 21 can fully contact both the central area and the corners of the container bottom, thoroughly cleaning the hardened coal sample and reducing cleaning dead zones. Simultaneously, this brush head shape allows for smoother rotation during cleaning, preventing jamming due to mismatch with the container bottom shape, thus improving cleaning efficiency and effectiveness. In this embodiment, the brush body 1 is elongated, further enhancing the brush's applicability.

[0039] Furthermore, in this embodiment, the brush holder 3 and the brush body 1 are detachably connected. The brush body 1 is made of plastic, while the brush holder 3 is made of metal. Since the metal brush body 1 cannot guarantee the firmness of the nylon bristles, only plastic material can be used. However, the plastic material cannot meet the connection strength between the brush holder 3 and the external motion mechanism. Therefore, the brush holder 3 and the brush body 1 adopt a separate material design, which can balance the firmness of the bristle implantation and the connection strength of the cleaning brush.

[0040] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make many possible variations and modifications to the technical solution of the present utility model using the methods and techniques disclosed above, or modify it into equivalent embodiments with equivalent changes, without departing from the spirit and technical solution of the present utility model. Therefore, any simple modifications, equivalent substitutions, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the content of the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A cleaning brush, characterized in that: The brush includes a brush body (1), a brush head (2) at the front end of the brush body (1), a through hole (12) inside the brush body (1), a first medium hole group inside the side wall of the brush body (1), a second medium hole group inside the brush head (2), the first medium hole group and the second medium hole group being connected to the through hole (12) respectively, a first bristle group on the brush body (1), a second bristle group on the brush head (2), and the hardness and / or arrangement density of the second bristle group being greater than that of the first bristle group.

2. The cleaning brush according to claim 1, characterized in that: The first bristle group is provided with multiple groups at intervals along the length of the brush body (1), and the first bristle group includes multiple soft bristle bundles (11) arranged at intervals along the circumference of the brush body (1).

3. The cleaning brush according to claim 2, characterized in that: The second bristle group includes a plurality of hard bristle bundles (21), the arrangement density of which is greater than that of soft bristle bundles (11).

4. The cleaning brush according to claim 3, characterized in that: The hard bristle bundle (21) is made of steel wire bristles, and the soft bristle bundle (11) is made of nylon bristles.

5. The cleaning brush according to claim 1, characterized in that: The first medium passage hole group is provided with multiple groups at intervals along the length direction of the brush body (1). The first medium passage hole group includes multiple first medium passage holes (13) arranged at intervals along the circumference of the brush body (1). The first medium passage holes (13) of two adjacent groups of the first medium passage hole group are staggered.

6. The cleaning brush according to claim 1, characterized in that: The second medium passage group includes a plurality of second medium passages (22).

7. The cleaning brush according to claim 1, characterized in that: The brush head (2) is hemispherical.

8. The cleaning brush according to any one of claims 1 to 7, characterized in that: The brush body (1) has a brush seat (3) at its rear end, which is used to connect to an external motion mechanism and / or a blowing mechanism.

9. The cleaning brush according to claim 8, characterized in that: The brush holder (3) is detachably connected to the brush body (1).

10. The cleaning brush according to claim 9, characterized in that: The brush body (1) is made of plastic, and the brush holder (3) is made of metal.

Images