A coating brush

Abstract

The utility model relates to the technical field of automobile coating operations, and more specifically, to a coating brush, including a mounting piece with a hollow interior and a through-tube at the end, a fixing piece for fixing wool material, and a clamping nut, wherein the mounting piece is plugged into one end of the mounting piece near the through-tube end and the through-tube mouth is in contact with the wool material, the other end of the fixing piece is inserted into the clamping nut and the end of the wool material protrudes from the clamping nut, and the clamping nut is also detachably connected to the mounting piece. The purpose of the utility model is to overcome the shortcomings of the prior art and provide a coating brush, which can ensure that only the wool material is replaced when the brush head is worn to a certain extent during the coating operation, and the remaining components can be disassembled and reused to reduce production costs.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile coating operations, and more specifically, to a coating brush. Background Art

[0002] At present, mainstream automobile factories are increasingly using robots for cleaning and primer coating of car bodies and glass. Robots use standard brush heads to evenly apply liquid on glass and body sheet metal surfaces. The brushes wear out quickly, and to avoid coatings that are too thin or too thick, the entire brush head must be scrapped after the brush material is worn out. Automatic cleaning and automatic primer coating in automobile production require high quality of brush heads. When the brushes are worn to a certain extent, the primer quality will be unstable, so the brush heads must be replaced, resulting in more frequent replacement of brush heads and higher costs. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art that the brush cannot be partially replaced after being worn and can only be scrapped as a whole, resulting in waste of resources and increased costs. A coating brush is provided, which can ensure that when the brush head is worn to a certain extent during the coating operation, only the bristle material is replaced, and the remaining components can be disassembled and reused, thereby saving resources and reducing production costs.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] A coating brush is provided, comprising a mounting piece which is hollow inside and provided with a through tube at the end, a fixing piece for fixing wool material, and a clamping nut. The mounting piece is plugged into one end of the mounting piece near the through tube end and the through tube mouth is in contact with the wool material, the other end of the fixing piece is inserted into the clamping nut and the end of the wool material protrudes from the clamping nut, and the clamping nut is also detachably connected to the mounting piece.

[0006] The mounting piece of the utility model is detachably connected, specifically, the fixing piece and the clamping nut can be fixed by threaded connection or clamping. At the same time, the mounting piece is a hollow structure and a through pipe is provided at the end. When the assembly is completed, the through pipe is in contact with the wool material to ensure that the coating liquid can be continuously supplied to the wool material through the inside of the mounting piece during the coating operation. When the assembly is completed, the wool material is fixed by the fixing piece close to the end of the mounting piece and the wool material is partially covered by the fixing piece, and at the same time, the wool material protrudes from the clamping nut away from the end of the mounting piece, thereby achieving contact between the wool material and the surface of the car to complete the coating operation.

[0007] Preferably, the mounting member is threadedly connected to the fixing member.

[0008] Preferably, the mounting part is provided with a first mounting step and a second mounting step connected to each other, one end of the through pipe is connected to the first mounting step, the outer diameter of the second mounting step is larger than the outer diameter of the first mounting step, the end of the fixing part close to the mounting part is provided with a socket for the through pipe to pass through, the other end of the through pipe is plugged into the socket of the fixing part, the socket is provided with an internal thread, the first mounting step is provided with an external thread, the first mounting step is inserted into the socket and threadedly connected to the fixing part, and the second mounting step is threadedly connected to the clamping nut. It is ensured that the clamping nut completely covers and further fixes the fixing part when the assembly is completed, so that the fixing part is not easy to loosen and malfunction during the coating operation; further, the end of the mounting part away from the fixing part is also provided with a connection part for connecting to a robot, and the robot can be used for automatic operation.

[0009] Preferably, the end of the fixing member away from the mounting member is provided with a plurality of spaced claws in sequence along the circumferential direction, and the rough material is inserted into the internal space formed by the plurality of claws; the clamping nut is a hollow structure, and the interior of the clamping nut includes a conical surface section and a threaded section connected to each other, and the conical surface section is arranged at the end away from the mounting member, the claws of the fixing member are inserted into the internal threaded section and the conical surface section of the clamping nut, and the outer wall of the conical surface section of the claw is in contact with the inner wall of the conical surface section, and during the assembly process, the claws contact the clamping nut and then bend inward to compress or insert the rough material to fix the rough material.

[0010] Preferably, the coating brush further comprises a sleeve, which is a heat shrinkable sleeve, which is sleeved on the outside of the fixing member and extends toward the wool material, and the sleeve partially covers the wool material.

[0011] Preferably, a first hand-held portion is provided on the mounting member, and the first hand-held portion is located at the end of the mounting member away from the clamping nut; a second hand-held portion is provided on the fixing member, and the second hand-held portion is provided at the end of the fixing member close to the mounting member, that is, away from the outer wall of the claw; a third hand-held portion is provided on the clamping nut, and the third hand-held portion is located at the end of the clamping nut away from the mounting member, that is, located at the outer wall of the end corresponding to the inner conical surface of the clamping nut. The first hand-held portion, the second hand-held portion and the third hand-held portion are all symmetrically arranged limit tables, and each hand-held portion makes it difficult to slip during the installation and disassembly process, thereby achieving a better loading and unloading effect.

[0012] Preferably, the coating brush further comprises a sealing ring, which is sleeved on the end of the mounting part away from the fixing part, to ensure that a robot can be used to continuously supply coating liquid to the brush head during coating operations in an automobile plant.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) Unlike conventional coating brushes, the components of the coating brush can be disassembled and reused, that is, only the bristles need to be replaced.

[0015] (2) The coating brush component is provided with a symmetrical hand-held portion, and the disassembly and assembly method is simple and convenient.

[0016] (3) The purpose of fixing the wool material and ensuring that the coating liquid flows continuously to the wool material is achieved by assembling the mounting parts, the fixing parts and the compression nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a coating brush according to the utility model from a first perspective;

[0018] Figure 2 This is a schematic structural diagram of a coating brush according to the utility model from a second viewing angle;

[0019] Figure 3 This is a schematic diagram of the exploded structure of a coating brush of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of a coating brush according to the utility model from a third perspective;

[0021] Figure 5 for Figure 4 AA section view;

[0022] Figure 6 This is a schematic structural diagram of a mounting member for a coating brush according to the utility model;

[0023] Figure 7 This is a schematic structural diagram of a fixing member of a coating brush according to the utility model;

[0024] Figure 8 The utility model is a schematic structural diagram of a clamping nut of a coating brush.

[0025] The illustrations are as follows:

[0026] 1. Mounting piece; 11. First mounting step; 12. Second mounting step; 13. First gripping part; 14. Connecting part; 15. Through pipe; 2. Fixing piece; 21. Socket; 22. Claw; 23. Second gripping part; 3. Compression nut; 31. Conical section; 32. Threaded section; 33. Third gripping part; 4. Wool material; 5. Sealing ring. DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with specific implementation methods. The drawings are only used for exemplary descriptions, and are only schematic diagrams, not actual pictures, and cannot be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0028] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0029] Example 1

[0030] like Figures 1 to 8 The figure shows a first embodiment of a coating brush of the utility model, comprising a mounting member 1 which is hollow inside and provided with a through tube 15 at the end, a fixing member 2 for fixing a wool material 4 and a clamping nut 3. The mounting member 1 is plugged into one end of the mounting member 2 near the end of the through tube 15 and the mouth of the through tube 15 is in contact with the wool material 4. The other end of the fixing member 2 is inserted into the clamping nut 3 and the end of the wool material 4 protrudes from the clamping nut 3. The clamping nut 3 is also detachably connected to the mounting member 1.

[0031] The mounting member 1 of the utility model is detachably connected, specifically, the fixing member 2 and the clamping nut 3 can be fixed by threaded connection or clamping. At the same time, the mounting member 1 is a hollow structure and a through pipe 15 is provided at the end. The hollow structure of the mounting member 1 ensures that the through pipe 15 is in contact with the wool material 4 when the assembly is completed, and the coating liquid can be continuously supplied to the wool material 4 through the inside of the mounting member 1 during the coating operation; when the assembly is completed, the wool material 4 is fixed by the fixing member 2 near the end of the mounting member 1 and the end of the wool material 4 near the mounting member 1 is partially covered by the fixing member 2, and at the same time, the end of the wool material 4 away from the mounting member 1 protrudes from the clamping nut 3, thereby realizing the wool material 4 in contact with the surface of the car. The coating operation is completed by touching, and the inner diameter of the clamping nut 3 needs to be slightly larger than the wool 4 after heat shrinkage to facilitate the passage of the wool 4 during assembly; the mounting piece 1 and the clamping nut 3 in this embodiment are made of stainless steel. Stainless steel has high corrosion resistance and good oxidation resistance, can resist the erosion of most chemical substances, and is suitable as a component of a coating brush for coating operations. The fact that the mounting piece 1 and the clamping nut 3 in this embodiment are made of stainless steel does not mean that only stainless steel can be used. Other reusable materials can be selected according to the specific use environment, use requirements and functions to ensure normal use while saving resources.

[0032] As an embodiment of the present invention, the end of the fixing member 2 away from the mounting member 1 is provided with a plurality of spaced claws 22 in sequence along the circumferential direction. The design of the spaced claws 22 allows the claws 22 to retract inwardly to further fix the wool 4. In this embodiment, the claws 22 are designed as eight claws, but this embodiment is not limited thereto. As long as the fixing member 2 can fix the wool 4 to ensure that it does not fall or loosen, the number of claws 22 can be selected according to actual use conditions and needs. The wool 4 is inserted into the internal space formed by the plurality of claws 22, that is, the wool 4 is close to the inner space. The end near the mounting member 1 is partially covered by the fixing member 2, and the uncovered part of the fixing member 2 is partially covered by the clamping nut 3, so that the fixing member 2 and the clamping nut 3 can jointly fix the rough material 4; the clamping nut 3 is a hollow structure, and the clamping nut 3 includes a conical surface section 31 and a threaded section 32 connected to each other. The conical surface section 31 is arranged at the end away from the mounting member 1, and the inner diameter of the end of the conical surface section 31 away from the mounting member 1 is smaller than the inner diameter of the end near the mounting member 1. The claw 22 of the fixing member 2 is inserted into the internal threaded section 32 and the conical surface section of the clamping nut 3 The outer wall of the conical section 31 of the clamping nut 3 is fitted with the inner wall of the conical section 31, and the conical section 31 is used to squeeze the clamping claw 22 and shrink the inner diameter of the clamping claw 22. As the inner thread of the clamping nut 3 is tightened, a smaller shrinkage inner diameter is provided for the clamping claw 22, that is, by controlling the tightening degree of the clamping nut 3 during the assembly process, the shrinkage degree of the clamping claw 22 is controlled by the conical section 31 inside the clamping nut 3, that is, the clamping claw 22 contacts the clamping nut 3 and then bends inward to compress or insert the rough material 4 to fix the rough material 4, thereby ensuring The clamping claw 22 can ensure the repeated positioning accuracy of the raw material 4, and it is especially important for the coating brush that needs multiple processing or multiple clamping. The coating brush clamping claw 22 is made of red copper, which makes the clamping claw 22 have good bending elasticity and high bending life. At the same time, red copper has good plasticity and is easy to be processed by hot pressing and cold pressure. It is not easy to break after forming and has a longer service life. The good corrosion resistance also makes it suitable for coating operations in automobile factories. In addition, the clamping claw 22 can also be made of other materials.

[0033] Example 2

[0034] The following is a second embodiment of a coating brush of the utility model. This embodiment is similar to the first embodiment, except that a first mounting step 11 and a second mounting step 12 connected to each other are provided on the mounting member 1, one end of a through pipe 15 of the mounting member 1 is connected to the first mounting step 11, the outer diameter of the second mounting step 12 is larger than the outer diameter of the first mounting step 11, a socket 21 for passing the through pipe 15 is provided in the fixing member 2, the other end of the through pipe 15 is plugged into the socket 21 of the fixing member 2, the socket 21 is provided with an internal thread, the first mounting step 11 is provided with an external thread, the first mounting step 11 is inserted into the socket 21 and is threadedly connected to the fixing member 2, and the second mounting step 12 is threadedly connected to the clamping nut 3.

[0035] Such arrangement allows the coating liquid to flow through the through pipe 15 to the wool material 4 for coating operation, ensuring that the clamping nut 3 completely covers the fixing part 2 when assembly is completed to further fix the fixing part 2, and when the clamping nut 3 is connected to the mounting part 1 through a thread, the inner wall of the conical section 31 of the clamping nut 3 and the outer wall of the claw 22 of the fixing part 2 remain in a close contact state, and the claw 22 of the fixing part 2 is compressed and bent to ensure that the wool material 4 is not easy to loosen during the coating operation; at the same time, the threaded connection has a simple structure, stable performance, convenient disassembly and assembly, and is not affected by the quality of the workers during the connection process, which can prevent the coating brush component from loosening and malfunctioning during the coating operation, and the threaded connection can be prefabricated in advance to realize factory operation and improve work efficiency; further, the end of the mounting part 1 away from the fixing part 2 is also provided with a connecting part 14 for connecting to a robot, and the robot can be used for integrated automatic operation, which improves work safety while reducing labor costs and thereby improving the production efficiency of automobile factories.

[0036] Example 3

[0037] The following is the third embodiment of a coating brush of the utility model. This embodiment is similar to the second embodiment, except that the first mounting step 11 is inserted into the socket and connected with the fixing member 2 by a snap-fit ​​connection, and the second mounting step 12 is connected with the clamping nut 3 by a snap-fit ​​connection, so as to ensure that the clamping nut 3 completely covers the fixing member 2 when the assembly is completed to further fix the fixing member 2, and when the clamping nut 3 is connected with the mounting member 1 by the snap-fit ​​connection, the inner wall of the conical surface section 31 of the clamping nut 3 and the outer wall of the claw 22 of the fixing member 2 are kept in a close contact state, and the claw 22 of the fixing member 2 is pressed and bent to ensure that the wool material 4 is not easy to loosen during the coating operation; the snap-fit ​​connection can realize fast assembly, and workers can complete it manually without using tools, thereby improving the efficiency of the automobile factory production line. At the same time, the snap-fit ​​design can provide strong holding force to ensure the stability of the connection; further, the buckle can be selected from materials with good elasticity and fatigue resistance, so that the buckle maintains stable performance during repeated use.

[0038] Example 4

[0039] The following is a fourth embodiment of a coating brush of the utility model. This embodiment is similar to the first embodiment, except that a first hand-held portion 13 is provided on the mounting member 1, and the first hand-held portion 13 is located at the end of the mounting member 1 away from the clamping nut 3; a second hand-held portion 23 is provided on the fixing member 2, and the second hand-held portion 23 is provided at the end of the fixing member 2 close to the mounting member 1, that is, away from the outer wall of the claw 22; a third hand-held portion 33 is provided on the clamping nut 3, and the third hand-held portion 33 is located at the end of the clamping nut 3 away from the mounting member 1, that is, the outer wall of the end corresponding to the conical surface section 31 of the clamping nut 3; the first hand-held portion 13, the second hand-held portion 23, and the third hand-held portion 33 are all symmetrically arranged limit tables, and the provision of the hand-held portions makes it difficult to slip during the installation and disassembly process, and the limit step can determine the positional relationship between the components, ensure that the mounting member 1, the fixing member 2, and the clamping nut 3 are correctly installed and kept fixed, thereby preventing thread stripping or poor sealing caused by over-tightening, and at the same time, a wrench or a socket can be used in actual loading and unloading to achieve a good loading and unloading effect.

[0040] Example 5

[0041] The following is the fifth embodiment of a coating brush of the utility model. This embodiment is similar to the first embodiment, except that when the coating brush is used for a longer time, the tips of the bristles 4 will wear or fork, resulting in a reduced coating effect and poor coating quality. When the coating brush is disassembled to replace the bristles 4, the mounting part 1, the fixing part 2 and the clamping nut 3 are in a separated state, and the parts can be fully cleaned to remove accumulated grease and impurities, which helps to improve the stability during holding and reduce the risk of clogging or damage of the coating brush, thereby reducing the production failure rate caused by coating brush problems and further improving the service life of the equipment.

[0042] Example 5

[0043] The following is the fifth embodiment of a coating brush of the utility model. This embodiment is similar to the first embodiment, except that the sealing ring 5 is a standard sealing ring on the market, which is simple in design and easy to install and replace, and can reduce maintenance costs to a certain extent. At the same time, the sealing ring 5 is used for the bolt head to be threadedly installed on the robot gripper to play a sealing role to prevent liquid from leaking from the threaded position, and can also prevent impurities such as dust or other solid particles from entering the coating brush, avoiding contamination of the coating liquid and causing poor coating quality. Furthermore, the sealing ring 5 can also absorb vibration to a certain extent, reducing noise and impact during the coating operation.

[0044] Example 6

[0045] The following is the sixth embodiment of a coating brush of the utility model. This embodiment is similar to the first embodiment, except that the hair material 4 is made of horsehair or wool. At present, a mature standard brush head pressed and formed is used in the market and installed on the robot gripper through a threaded connection. After the parts are pressed and deformed, the parts cannot be recovered and the assembly operation cannot be repeated. That is, the standard brush head pressed and formed in one piece is a disposable consumable and cannot be reused. The number of brushes consumed is huge, which greatly increases the cost. At the same time, any design equipment change or customization requirements may require the mold to be re-manufactured, which further increases the production time and production costs. The hair material of the existing standard brushes is mostly made of wool. There are objective wear factors in the brush and car body coating operations, and the wear rate is relatively fast. Taking the front and rear windshield primer of the general assembly department of the car factory as an example, a standard wool brush head purchased from outside is used, and the purchase price is 25 yuan. Each brush head is used for an average of 2 hours. Under the double-shift full-load production system, the daily cleaning and primer brush head loss reaches 16, and the daily cost is 400 yuan. The annual production is calculated based on 300 days. The brush consumption for the primer position reaches 120,000 yuan. If the side window glass, sunroof glass, front windshield, rear windshield and sunroof are included, there are 5 similar positions at the same time. The cost of brush heads for a single automobile manufacturing workshop will reach 600,000 yuan per year. At the same time, automatic cleaning and automatic primer in automobile production have high requirements for quality assurance. When the wool material 4 is worn to a certain extent, the primer quality will be unstable, so the entire coating brush must be replaced. As a result, the coating brush is replaced frequently, the consumption is large and the cost is high, resulting in a There is a certain degree of waste of resources; in this case, the wool material 4 is made of horse hair or wool. Choosing a suitable wool material can further improve the quality and efficiency of the coating operation. The wool brush is suitable for coating work that requires delicate treatment due to its softness and elasticity, while the horse hair brush is suitable for occasions that require uniform coating due to its strong powder grasping power and toughness; the use of horse hair or wool material for the wool material 4 in this embodiment does not mean that only horse hair or wool material can be used. The specific choice needs to be determined according to the specific requirements of the coating operation and the properties of the coating. Materials such as pig hair and chemical synthetic products can be used.

[0046] The assembly process of the coating brush is as follows: first, a certain amount of wool 4 is passed through the heat shrink tube for heat shrinkage. At this time, the wool 4 is partially covered by the heat shrink tube, that is, one end of the wool 4 is wrapped by the heat shrink tube, and the other end protrudes from the heat shrink tube, forming a state of the heat shrink tube sleeve wool 4. At this time, it should be noted that the tightening diameter of the heat shrink tube sleeve wool 4 needs to be kept basically consistent, and the deviation should not be too large, so as to avoid the diameter being too large to insert the clamping nut 3 to affect the assembly or the diameter being too small to cause the claw 22 to be unable to be fully fixed; secondly, the end of the wool 4 covered by the heat shrink tube is inserted into the fixing part 2 by the claw 22 end to form a first assembly; then the end of the through pipe 15 provided on the mounting part 1 is inserted into the first assembly and Tighten to form a second assembly; at this time, the through pipe 15 of the mounting part 1 needs to be penetrated with a needle-shaped tool to prevent the wool 4 from being inserted into the through pipe 15 and forming a blockage; then insert the end of the wool 4 of the second assembly into the end of the threaded section 32 inside the clamping nut 3, and tighten it; finally, put on the sealing ring 5 to complete the assembly process of the coating brush. In addition, the tightening process can be completed by a wrench or other tools and the first hand-held part 13, the second hand-held part 23, and the third hand-held part 33; the disassembly process is the reverse operation of the assembly process, and the operation is simple and convenient. Employees of automobile factories can use their free time to independently disassemble and assemble the brushes, further reducing production costs.

[0047] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A coating brush, characterized in that: The invention comprises a mounting member (1) which is hollow inside and provided with a through pipe (15) at the end thereof, a fixing member (2) for fixing a rough material (4), and a clamping nut (3); the mounting member (1) is plugged into one end of the mounting member (2) near the end of the through pipe (15), and the mouth of the through pipe (15) is in contact with the rough material (4); the other end of the fixing member (2) is inserted into the clamping nut (3), and the end of the rough material (4) protrudes from the clamping nut (3); the clamping nut (3) is also detachably connected to the mounting member (1).

2. The coating brush according to claim 1, characterized in that: The mounting member (1) is threadedly connected to the fixing member (2).

3. The coating brush according to claim 2, characterized in that: The mounting member (1) is provided with a first mounting step (11) and a second mounting step (12) which are connected to each other. One end of the through pipe (15) is connected to the first mounting step (11). The fixing member (2) is provided with a plug hole (21) for passing the through pipe (15) at an end portion close to the mounting member (1). The other end of the through pipe (15) is plugged into the plug hole (21) of the fixing member (2). The plug hole (21) is provided with an internal thread. The first mounting step (11) is provided with an external thread. The first mounting step (11) is inserted into the plug hole (21) and is threadedly connected to the fixing member (2). The second mounting step (12) is threadedly connected to the clamping nut (3).

4. The coating brush according to claim 3, characterized in that: The outer diameter of the second mounting step (12) of the mounting member (1) is greater than the outer diameter of the first mounting step (11).

5. The coating brush according to claim 4, characterized in that: The end of the fixing member (2) away from the mounting member (1) is provided with a plurality of claws (22) in sequence along the circumferential direction, and the rough material (4) is inserted into an internal space formed by the plurality of claws (22).

6. The coating brush according to claim 5, characterized in that: It also comprises a sleeve, which is sleeved outside the fixing member (2) and extends towards the wool material (4), and the sleeve partially covers the wool material (4).

7. The coating brush according to claim 6, characterized in that: The sleeve is a heat shrinkable sleeve.

8. The coating brush according to claim 5, characterized in that: The clamping nut (3) is a hollow structure, and the interior of the clamping nut (3) includes a conical surface section (31) and a threaded section (32) that are connected to each other. The conical surface section (31) is arranged at the end away from the mounting member (1). The claw (22) of the fixing member (2) is inserted into the threaded section (32) and the conical surface section (31) inside the clamping nut (3), and the claw (22) is located on the outer wall of the conical surface section (31) and fits with the inner wall of the conical surface section (31). The clamping nut (3) is threadedly connected to the second mounting step (12) through the threaded section (32).

9. The coating brush according to claim 1, characterized in that: The mounting member (1) is provided with a first hand-held portion (13), and the first hand-held portion (13) is located at an end of the mounting member (1) away from the clamping nut (3); the fixing member (2) is provided with a second hand-held portion (23), and the second hand-held portion (23) is located at an end of the fixing member (2) close to the mounting member (1); the clamping nut (3) is provided with a third hand-held portion (33), and the third hand-held portion (33) is located at an end of the clamping nut (3) away from the mounting member (1).

10. The coating brush according to claim 1, characterized in that: It also comprises a sealing ring (5), wherein the sealing ring (5) is sleeved on the end of the mounting member (1) away from the fixing member (2).

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