Gun barrel cleaning device and cleaning method thereof

Abstract

The invention provides a gun barrel cleaning device and a cleaning method thereof.The gun barrel cleaning device comprises a barrel body capable of being plugged into a gun barrel, a plurality of pairs of walking supporting arms capable of being popped up are embedded in the circumferential barrel wall of the barrel body, a pair of rolling wheels is installed at the tail end of each walking supporting arm, a driving assembly is installed in each walking supporting arm, a tubular shaft capable of stretching and retracting in the axial direction is installed in the barrel body, and the tubular shaft is connected with the rolling wheels. The two ends of the pipe shaft extend out of the barrel and are detachably provided with brush discs, an inner control line and an inner water pipe are integrated in the pipe shaft, the rear end of the inner control line and the rear end of the inner water pipe extend out of the rear end of the pipe shaft and are in butt joint with an outer control line and an outer water pipe respectively, and a plurality of water outlet holes matched with the inner water pipe are formed in the circumferential side wall of each brush disc. The device is light, small and exquisite, can independently move back and forth in the gun barrel in a reciprocating manner, is simplified in operation control, can be easily processed by any operator, can be operated by one person, can be mounted on any equipment as a part of the equipment, can clean any gun barrel due to functionality and flexibility, and is good in cleaning effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of barrel cleaning, in particular to a barrel cleaning device and a cleaning method thereof. BACKGROUND

[0002] The inner wall surface state of the tank barrel, as a key bearing component of the gun launching system, directly determines the gunnery accuracy, range and service life. In combat and training, the barrel needs to withstand high temperature, high pressure and high-speed friction of the projectile. If there are contaminants on the inner wall, it will lead to uneven force on the projectile, and the efficiency of the rifling guide will be reduced, which will cause shooting deviation. In severe cases, it may even cause the projectile to be stuck and the barrel to be blown, etc. Therefore, barrel cleaning is a core link in the tank equipment maintenance system, which directly affects the combat effectiveness and safety of the equipment.

[0003] When the ammunition is launched, solid residues, liquid condensates and gaseous impurities will be produced by the combustion of gunpowder. Among them, the solid residues are easy to adhere to the rifling groove and slope chamber parts, and the liquid condensates will react with the metal inner wall to form complex dirt that is difficult to clean.

[0004] At present, the combination of a cleaning rod and a cleaning head is mainly used to achieve this. During operation, the cleaning rod and the cleaning head need to be manually inserted into the barrel, and reciprocating motion along the barrel axis is needed to achieve the cleaning process. This method is low in efficiency, requires at least two operators, and has poor cleaning effect. SUMMARY

[0005] In view of the above problems, the present application provides a barrel cleaning device and a cleaning method thereof. The device is light and small, can independently move forward and backward in the barrel, simplifies the operation control, and can be easily handled by any operator. It can be installed on any equipment as part of the equipment, and its functionality and flexibility can clean any barrel with good cleaning effect.

[0006] To solve the above problems, the technical scheme adopted by the present application is as follows: A barrel cleaning device, comprising a barrel body that can be inserted into the barrel, a plurality of pairs of walking arms are embedded on the circumferential barrel wall of the barrel body and can be ejected, a pair of rollers is installed at the end of the walking arm, a driving assembly for driving the rotation of the roller is installed in the walking arm, an axially telescopic pipe shaft is installed in the barrel body, the both ends of the pipe shaft extend out of the barrel body and are detachably installed with brush discs, an inner control line and an inner water pipe are integrated in the pipe shaft, the driving assembly is electrically connected with the inner control line, the rear end of the inner control line and the inner water pipe extends out of the rear end of the pipe shaft and is respectively connected with an outer control line and an outer water pipe, and a plurality of water outlets matched with the inner water pipe are arranged on the circumferential side wall of the brush disc.

[0007] Preferably, the driving assembly comprises a transmission head fixedly installed at the end of the walking support arm, a wheel shaft is rotationally connected between the pair of rollers, a first motor is installed in the walking support arm, the output end of the first motor extends into the transmission head, and the output end is in transmission connection with the wheel shaft through a bevel gear pair.

[0008] Preferably, the circumferential side wall of the barrel body is provided with a ejection port for the corresponding walking support arm, one end of the walking support arm located in the barrel body is rotationally connected in the barrel body through a support arm shaft, and a torsion spring is sleeved on the support arm shaft.

[0009] Preferably, a second motor is installed in the rear end of the barrel body, a cam is fixedly connected to the output end of the second motor, a resistance disc is fixedly sleeved on the pipe shaft and abuts against the cam, the resistance disc is slidingly installed in the barrel body, and springs are elastically connected between the inner walls on both sides of the barrel body and the resistance disc.

[0010] Preferably, both ends of the pipe shaft are provided with external threads, a mounting hole is formed in the center of the brush disc, the inner side of the mounting hole is provided with internal threads matched with the external threads, and both ends of the pipe shaft are further fixedly connected with limiting plates for limiting the installation position of the brush disc.

[0011] Preferably, the rear end of the inner water pipe is connected to the outer water pipe through a threaded joint, and the rear end of the inner control line is connected to the outer control line through an aviation joint.

[0012] Preferably, the circumferential inner wall of the mounting hole is provided with an annular water groove, sealing rings abutting against the pipe shaft are embedded at the grooves on both sides of the annular water groove, a plurality of water outlets in the circumferential direction are in communication with the annular water groove, and the side wall of the inner water pipe is provided with a water inlet pipe extending to the outer wall of the pipe shaft, and the water inlet pipe is in communication with the annular water groove.

[0013] Preferably, the circumferential side wall of the brush disc is uniformly provided with a plurality of nylon brush heads.

[0014] Preferably, a low-friction thread is arranged on the front section of the pipe shaft located in the barrel body, a non-self-locking screw pair is threadedly sleeved on the low-friction thread, a rotating disc is fixedly sleeved on the non-self-locking screw pair, the circumferential side wall of the rotating disc is rotationally connected to the inner wall of the barrel body and embedded with an inner magnetic ring, an annular oil storage tank is sleeved on the outer wall of the front end of the barrel body, an outer magnetic ring magnetically attracted to the inner magnetic ring is embedded in the inner wall of the annular oil storage tank, a plurality of oil outlets are arranged on the circumferential side wall of the annular oil storage tank, and the annular oil storage tank is filled with rust-preventive oil.

[0015] The application also provides a cleaning method of the barrel, comprising the following steps: S1, a pair of brush discs matched with the diameter of the barrel are selected and are screwed to both ends of the pipe shaft, the outer water pipe is connected to the inner water pipe through a threaded joint, and the outer control line is connected to the inner control line through an aviation joint. S2, the barrel 1 is inserted into the barrel, a plurality of pairs of walking arms are in contact with the inner wall of the barrel under the action of the torsion spring, the outer control line is connected with the controller and is powered, the first motor is started, the rollers are driven to rotate through the bevel gear pair, the barrel is driven to advance or retreat, and the brush disc is driven to move in the barrel; S3, the second motor is started to drive the cam to rotate, the disc is always in contact with the cam under the action of the spring, and the pipe shaft is driven to reciprocate forward and backward, finally the front and rear brush discs are driven to reciprocate, the pollutants on the inner wall of the barrel are wiped off through the nylon brush head, at the same time, the outer water pipe pumps the cleaning agent into the inner water pipe, and then the cleaning agent is pumped into the annular groove through the water inlet pipe, and finally the cleaning agent is sprayed into the barrel through a plurality of water outlet holes, and the brushing process is realized in cooperation with the brush disc; S4, after completing the brushing process for multiple times, the barrel is taken out, the non-woven fabric is wrapped on the brush disc, and the barrel is inserted into the barrel again to realize the water absorption process, or the outer water pipe is connected with the hot air dryer to realize the drying process of the barrel; S5, the annular oil tank filled with rust-proof oil is sleeved at the front end of the barrel, the barrel is finally inserted into the barrel, the low-friction screw thread and the non-self-locking screw pair cooperate during the reciprocating movement of the pipe shaft, the rotating disc is driven to rotate, the annular oil tank is driven to rotate under the magnetic attraction of the inner magnetic ring and the outer magnetic ring, and the rust-proof oil is thrown out through the oil outlet hole under the centrifugal force, is sprayed on the inner wall of the barrel, is uniformly smeared in cooperation with the brush disc, and the cleaning process is completed.

[0016] The beneficial effects of the present application are: 1. By installing the barrel, the detachable brush disc and the pipe shaft, selecting a pair of brush discs suitable for the diameter of the barrel, screwing the brush discs to the two ends of the pipe shaft, screwing to the limit position of the contact limiting plate, connecting the outer water pipe with the inner water pipe through the threaded joint, connecting the outer control line with the inner control line through the aviation joint, inserting the barrel into the barrel, a plurality of pairs of walking arms are in contact with the inner wall of the barrel under the action of the torsion spring, the outer control line is connected with the controller and is powered, the first motor is started, the rollers are driven to rotate through the bevel gear pair, the barrel is driven to advance or retreat, and the brush disc is driven to move in the barrel to realize the cleaning process, the device is light and small, can independently move forward and backward in the barrel, the operation control is simplified, any operator can easily handle, and can be installed on any equipment as part of the equipment, meanwhile, its functionality and flexibility can clean any barrel, and the cleaning efficiency is high and the effect is good.

[0017] 2. By installing the outer water pipe, the inner water pipe, the annular water tank and the water outlet hole, starting the second motor to drive the cam to rotate, the resistance plate is always in contact with the cam under the action of the spring, and then the pipe shaft moves back and forth, finally the front and rear brush plates move back and forth, the nylon brush head wipes the contaminants on the inner wall of the barrel, at the same time, the outer water pipe pumps the cleaning agent into the inner water pipe, and then into the annular tank through the water inlet pipe, and finally sprayed into the barrel through multiple water outlet holes, cooperating with the brush plate to realize the brushing process, after completing multiple front and rear brushing processes, the cylinder is taken out, the non-woven fabric is wrapped on the brush plate, and then it is inserted into the barrel again to realize the water absorption process, or the outer water pipe is connected with a hot air dryer to realize the drying process of the barrel, which can effectively brush off the stubborn contaminants on the inner wall and wipe and dry the moisture in time to avoid rusting.

[0018] 3. By setting low-friction threads, non-self-locking screw pairs, rotating discs, inner magnetic rings, outer magnetic rings and annular oil tanks, the annular oil tank filled with rust-proof oil is sleeved on the front end of the cylinder, and the cylinder is finally inserted into the barrel, during the back and forth movement of the pipe shaft, the low-friction threads and the non-self-locking screw pairs cooperate to drive the rotating disc to rotate, and under the magnetic attraction of the inner magnetic ring and the outer magnetic ring, the annular oil tank rotates, and under the centrifugal force, the rust-proof oil is thrown out through the oil outlet hole and sprayed on the inner wall of the barrel, cooperating with the brush plate to evenly spread, realizing the maintenance process of the barrel. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a perspective view of the present application; Figure 2 It is a cross-sectional view of the walking support arm according to the present application; Figure 3 It is a cross-sectional view of the present application; Figure 4 It is Figure 3 It is an enlarged view of the structure at A in Figure 5 It is a perspective view of the second embodiment of the present application; Figure 6 It is a cross-sectional view of the second embodiment of the present application; Figure 7 It is Figure 6 It is an enlarged view of the structure at B in

[0020] In the figure: 1 cylinder, 2 walking support arm, 3 transmission head, 4 roller, 5 ejection port, 6 brush plate, 7 mounting hole, 8 pipe shaft, 9 resistance plate, 10 spring, 11 cam, 12 outer water pipe, 13 outer control line, 14 water outlet hole, 15 limit plate, 16 support arm shaft, 17 outer thread, 18 sealing ring, 19 annular water tank, 20 inner control line, 21 inner water pipe, 22 threaded joint, 23 first motor, 24 bevel gear pair, 25 annular oil tank, 26 oil outlet hole, 27 low-friction thread, 28 non-self-locking screw pair, 29 outer magnetic ring, 30 inner magnetic ring, 31 rotating disc. DETAILED DESCRIPTION

[0021] In order to make the above objectives, features and advantages of the present application more clear and easily understood, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different manners according to the teachings of the present application, and thus other modifications can be made without departing from the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0022] It should be noted that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. The terms "vertical", "horizontal", "left", "right" and similar expressions as used herein are for illustrative purposes only and are not meant to be limiting.

[0023] Embodiment One Reference Figures 1-4 A barrel cleaning device, comprising a barrel body 1 which can be inserted into a barrel, a plurality of pairs of walking arms 2 are embedded on the circumferential barrel wall of the barrel body 1 and can be ejected, a pair of rollers 4 are installed at the end of the walking arm 2, a driving assembly for driving the rotation of the roller 4 is installed in the walking arm 2, the driving assembly comprises a transmission head 3 fixedly installed at the end of the walking arm 2, an axle is rotatably connected between the pair of rollers 4, a first motor 23 is installed in the walking arm 2, the output end of the first motor 23 extends into the transmission head 3, and the output end and the axle are drivingly connected through a bevel gear pair 24, a pair of brush discs 6 are selected according to the diameter of the barrel and are screwed to the two ends of the pipe shaft 8, and any barrel can be cleaned.

[0024] Further, the circumferential side wall of the barrel body 1 is provided with an ejection port 5 for the corresponding walking arm 2 to be ejected, one end of the walking arm 2 located in the barrel body 1 is rotatably connected in the barrel body 1 through an arm shaft 16, a torsion spring is sleeved on the arm shaft 16, and the plurality of pairs of walking arms 2 are always in contact with the inner wall of the barrel under the action of the torsion spring.

[0025] A pipe shaft 8 which can axially extend and retract is installed in the barrel body 1, a second motor is installed in the rear end of the barrel body 1, a cam 11 is fixed to the output end of the second motor, a resisting disc 9 which resists the cam 11 is fixedly sleeved on the pipe shaft 8, the resisting disc 9 is slidingly installed in the barrel body 1, springs 10 are elastically connected between the inner walls of the two sides of the barrel body 1 and the resisting disc 9, the second motor is started to drive the rotation of the cam 11, the resisting disc 9 is always in contact with the cam 11 under the action of the spring 10, thereby driving the pipe shaft 8 to move back and forth, and finally driving the front and rear brush discs 6 to move back and forth to wipe the contaminants on the inner wall of the barrel through the nylon brush head.

[0026] Both ends of the pipe shaft 8 extend out of the barrel 1 and are detachably mounted with the brush disc 6, the circumferential side wall of the brush disc 6 is uniformly distributed with a plurality of nylon brush heads, both ends of the pipe shaft 8 are provided with external threads 17, the center of the brush disc 6 is provided with a mounting hole 7, the inner side of the mounting hole 7 is provided with internal threads matched with the external threads 17, both ends of the pipe shaft 8 are further fixed with a limiting plate 15 limiting the installation position of the brush disc 6.

[0027] The pipe shaft 8 is integrated with an inner control line 20 and an inner water pipe 21, the driving assembly is electrically connected with the inner control line 20, the rear end of the inner control line 20 and the inner water pipe 21 extends out of the rear end of the pipe shaft 8 and is respectively butt-jointed with the outer control line 13 and the outer water pipe 12, the rear end of the inner water pipe 21 is butt-jointed with the outer water pipe 21 through a threaded joint 22, the rear end of the inner control line 20 is butt-jointed with the outer control line 13 through an aviation joint, convenient to disassemble and assemble.

[0028] The circumferential side wall of the brush disc 6 is provided with a plurality of water outlets 14 matched with the inner water pipe 21, the circumferential inner wall of the mounting hole 7 is provided with an annular water groove 19, both sides of the annular water groove 19 are embedded with sealing rings 18 abutting against the pipe shaft 8, the plurality of circumferential water outlets 14 are all communicated with the annular water groove 19, the side wall of the inner water pipe 21 is provided with a water inlet pipe 20 extending to the outer wall of the pipe shaft 8, the water inlet pipe 20 is communicated with the annular water groove 19, the outer water pipe 12 pumps the cleaning agent into the inner water pipe 21, and then the cleaning agent is pumped into the annular groove 19 through the water inlet pipe 20, and finally sprayed into the barrel through the plurality of water outlets 14, and the brush disc 6 is matched to realize the brushing process.

[0029] The cleaning steps are as follows: According to the diameter of the barrel, a pair of brush discs 6 matched with the diameter are selected, and are screwed to both ends of the pipe shaft 8, after being screwed to the limit position abutting against the limiting plate 15, the outer water pipe 12 is butt-jointed with the inner water pipe 21 through the threaded joint 22, and the outer control line 13 is butt-jointed with the inner control line 20 through the aviation joint.

[0030] The barrel 1 is inserted into the barrel, a plurality of walking arms 2 are driven by the torsion spring to abut against the inner wall of the barrel, the outer control line 13 is connected with the controller and is powered, the first motor 23 is started, the roller 4 is driven to rotate through the bevel gear pair 24, the barrel 11 is driven to move forward or backward, and the brush disc 6 is driven to move in the barrel.

[0031] The second motor is started to drive the cam 11 to rotate, the abutting disc 9 always abuts against the cam 11 under the action of the spring 10, and the pipe shaft 8 is driven to move back and forth, and finally the front and rear brush discs 6 are driven to move back and forth, the pollutants on the inner wall of the barrel are wiped by the nylon brush heads, at the same time, the outer water pipe 12 pumps the cleaning agent into the inner water pipe 21, and then the cleaning agent is pumped into the annular groove 19 through the water inlet pipe 20, and finally sprayed into the barrel through the plurality of water outlets 14, and the brush disc 6 is matched to realize the brushing process.

[0032] After completing the multiple front and back brushing process, the barrel body 1 is taken out, the non-woven fabric is wrapped on the brush disc 6, and then it is inserted into the barrel again to realize the water absorption process. The outer water pipe 12 can be connected with a hot air dryer to realize the drying process of the barrel.

[0033] Embodiment two With reference to Figures 5-7 The front section of the pipe shaft 8 located in the barrel body 1 is provided with a low-friction thread 27, a non-self-locking screw pair 28 is threadedly sleeved on the low-friction thread 27, a rotating disc 31 is fixedly sleeved on the non-self-locking screw pair 28, the circumferential sidewall of the rotating disc 31 is rotationally connected to the inner wall of the barrel body 1, and an inner magnetic ring 30 is embedded therein. The outer wall of the front end of the barrel body 1 is sleeved with an annular oil storage tank 25, the inner wall of the annular oil storage tank 25 is embedded with an outer magnetic ring 29 which is magnetically attracted to the inner magnetic ring 30, the circumferential sidewall of the annular oil storage tank 25 is provided with a plurality of oil outlets 26, the annular oil storage tank 25 is filled with rust-preventive oil, the annular oil storage tank 25 filled with rust-preventive oil is sleeved on the front end of the barrel body 1, and the barrel body 1 is finally inserted into the barrel. During the reciprocating movement of the pipe shaft 8, the low-friction thread 27 and the non-self-locking screw pair 28 cooperate to drive the rotating disc 31 to rotate, the annular oil storage tank 25 is driven to rotate under the magnetic attraction of the inner magnetic ring 30 and the outer magnetic ring 29, and the rust-preventive oil is thrown out through the oil outlets 26 under the centrifugal force and sprayed on the inner wall of the barrel, which is uniformly coated by cooperating with the brush disc 6, thereby completing the barrel maintenance process.

[0034] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A gun barrel cleaning device, comprising a cylinder (1) that can be inserted into a gun barrel, characterized in that, The circumferential wall of the cylinder (1) is fitted with multiple pairs of pop-out walking arms (2). A pair of rollers (4) are installed at the end of the walking arms (2). A drive assembly for driving the rollers (4) to rotate is installed inside the walking arms (2). An axially telescopic tube shaft (8) is installed inside the cylinder (1). Both ends of the tube shaft (8) extend out of the cylinder (1) and are detachably fitted with brush discs (6). An internal control line (20) and an internal water pipe (21) are integrated inside the tube shaft (8). The drive assembly is electrically connected to the internal control line (20). The rear ends of the internal control line (20) and the internal water pipe (21) extend out of the rear end of the tube shaft (8) and are respectively connected to an external control line (13) and an external water pipe (12). The circumferential sidewall of the brush disc (6) is provided with multiple water outlet holes (14) that cooperate with the internal water pipe (21).

2. The barrel cleaning device according to claim 1, characterized in that, The drive assembly includes a transmission head (3) fixedly mounted at the end of the walking arm (2), a wheel axle rotatably connected between a pair of rollers (4), a first motor (23) installed inside the walking arm (2), the output end of the first motor (23) extending into the transmission head (3), and the output end being connected to the wheel axle via a bevel gear pair (24).

3. The barrel cleaning device according to claim 1, characterized in that, The circumferential sidewall of the cylinder (1) is provided with a pop-out outlet (5) for the corresponding walking arm (2) to pop out. One end of the walking arm (2) located inside the cylinder (1) is rotatably connected to the cylinder (1) through the arm shaft (16). A torsion spring is fitted on the arm shaft (16).

4. The barrel cleaning device according to claim 1, characterized in that, A second motor is installed in the rear end of the cylinder (1), and a cam (11) is fixed at the output end of the second motor. A stop plate (9) that abuts the cam (11) is fixedly sleeved on the tube shaft (8). The stop plate (9) is slidably installed in the cylinder (1). Springs (10) are elastically connected between the inner walls on both sides of the cylinder (1) and the stop plate (9).

5. A barrel cleaning device according to claim 1, characterized in that, Both ends of the tube shaft (8) are provided with external threads (17), the center of the brush plate (6) is provided with a mounting hole (7), the inner side of the mounting hole (7) is provided with an internal thread that is adapted to the external thread (17), and the two ends of the tube shaft (8) are also fixed with limiting plates (15) that restrict the installation position of the brush plate (6).

6. A barrel cleaning device according to claim 1, characterized in that, The rear end of the inner water pipe (21) is connected to the outer water pipe (21) via a threaded connector (22), and the rear end of the inner control line (20) is connected to the outer control line (13) via an aviation connector.

7. A barrel cleaning device according to claim 5, characterized in that, The mounting hole (7) has an annular water groove (19) on its circumferential inner wall. Both sides of the annular water groove (19) are fitted with sealing rings (18) that abut against the pipe shaft (8). The multiple circumferential water outlets (14) are connected to the annular water groove (19). The inner water pipe (21) has an inlet pipe (20) extending to the outer wall of the pipe shaft (8) on its side wall. The inlet pipe (20) is connected to the annular water groove (19).

8. A barrel cleaning device according to claim 1, characterized in that, The brush plate (6) has multiple nylon brush heads evenly distributed on its circumferential sidewall.

9. A barrel cleaning device according to claim 1, characterized in that, The tube shaft (8) is provided with a low-friction thread (27) on the front section inside the cylinder (1). A non-self-locking screw pair (28) is threaded on the low-friction thread (27). A turntable (31) is fixedly sleeved on the non-self-locking screw pair (28). The circumferential sidewall of the turntable (31) is rotatably connected to the inner wall of the cylinder (1) and is fitted with an inner magnetic ring (30). An annular oil storage tank (25) is sleeved on the outer wall of the front end of the cylinder (1). An outer magnetic ring (29) that magnetically attracts the inner magnetic ring (30) is embedded in the inner wall of the annular oil storage tank (25). The circumferential sidewall of the annular oil storage tank (25) is provided with multiple oil outlet holes (26). The annular oil storage tank (25) is filled with rust-preventive oil.

10. A cleaning method based on the barrel cleaning device according to any one of claims 1-9, characterized in that, Includes the following steps: S1. Select a pair of brushes (6) that are suitable according to the diameter of the barrel, screw them to both ends of the tube shaft (8), screw them to the limit position of the limit plate (15), connect the outer water pipe (12) to the inner water pipe (21) through the threaded joint (22), and connect the outer control line (13) to the inner control line (20) through the aviation joint. S2. Insert the cylinder (1) into the barrel. Under the action of the torsion spring, the multiple pairs of traveling arms (2) make the rollers (4) contact the inner wall of the barrel. The external control line (13) is connected to the controller and powered. The first motor (23) starts and drives the rollers (4) to rotate through the bevel gear pair (24), which drives the cylinder (11) to move forward or backward, and then drives the brush (6) to move inside the barrel. S3. Start the second motor to drive the cam (11) to rotate. The abutment plate (9) always abuts against the cam (11) under the action of the spring (10), thereby driving the tube shaft (8) to move back and forth, and finally driving the front and rear brush plates (6) to move back and forth. The pollutants on the inner wall of the barrel are wiped by the nylon brush head. At the same time, the outer water pipe (12) pumps the cleaning agent into the inner water pipe (21), and then pumps it into the annular groove (19) through the water inlet pipe (20). Finally, it is sprayed into the barrel through multiple water outlets (14) to achieve the brushing process in conjunction with the brush plate (6). S4. After completing multiple front and back brushing processes, take out the cylinder (1), wrap the non-woven fabric around the brush plate (6), and stuff it back into the barrel to achieve the water absorption process. Alternatively, connect the external water pipe (12) to a hot air blower to achieve the drying process of the barrel. S5. The annular oil tank (25) filled with rust-preventive oil is placed on the front end of the cylinder (1). The cylinder (1) is then inserted into the barrel. During the back-and-forth movement of the tube shaft (8), the low-friction thread (27) and the non-self-locking screw pair (28) work together to drive the turntable (31) to rotate. Under the magnetic attraction of the inner magnetic ring (30) and the outer magnetic ring (29), the annular oil tank (25) rotates. Under the action of centrifugal force, the rust-preventive oil is thrown out through the oil outlet (26) and sprayed onto the inner wall of the barrel. The brush (6) is used to spread the oil evenly, thus completing the cleaning process.

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