KR100277215B1 - Automatic muzzle cleaner and pressure fluid control device - Google Patents

Abstract

The present invention relates to an automatic muzzle cleaner and a pressure fluid control device used therein. Recently, according to the Jangpo mythology, there was a problem that a lot of man-hours were required to clean the muzzle, resulting in a decrease in military combat power. The present invention is to be able to quickly and easily clean the muzzle of the long gun canvas while operating the cylinder assembly and the clamp assembly using a pressure fluid such as pneumatic or hydraulic pressure of the canvas itself without using a separate power source. In addition, the control device to control the pressure fluid to increase the military combat power by enabling the cleaning of the muzzle quickly and smoothly without the use of electrical and electronic components.

Description

Automatic muzzle cleaner and pressure fluid control device

The present invention relates to an automatic muzzle cleaner and a pressure fluid control device used therein, and in particular, the muzzle cleaning is performed quickly and in a short time with a small manpower without using a separate power source in accordance with the trend of long gunization. An automatic muzzle cleaner and a pressure fluid control device used therein are provided.

Recently, as the artillery of Jangpo mythology, there was a problem that the maintenance time was increased, resulting in a weakening of military combat power.

In addition, the muzzle cleaner for cleaning the foreign matter stuck to the inside of the muzzle mounted on the conventional canvas was required to prepare a separate external power source, such as the time required for preparation of the cleaner operation was inconvenient and inconvenient to use. There was a risk of failure and electricity use, and the vacuum cleaner body rotates during the forward and reverse operation while preventing the brush of the cleaner from rotating, causing the pressure fluid hose to twist, and the inner side of the steel wire formed inside the muzzle There was a problem that the foreign matter was not removed efficiently, and automatic return was impossible, so it had to be returned manually, resulting in poor operability.

Accordingly, an object of the present invention is to provide an automatic muzzle cleaner and a pressure fluid control device used to enhance military combat power by quickly and automatically cleaning a muzzle of a long gun canvas by a small manpower.

Another object of the present invention is to provide an automatic muzzle cleaner and a pressure fluid control device used therein for performing muzzle cleaning using pressure fluid of the canvas itself without using a separate power source.

1 is a cross-sectional view of an embodiment of an automatic muzzle cleaner according to the present invention.

FIG. 2 is an enlarged cross-sectional view of the clamp assembly of the automatic muzzle cleaner of FIG. 1. FIG.

3 is a cross-sectional view taken along the line A-A of FIG.

4 and 5 are cross-sectional views illustrating the state before the brush assembly and the cylinder assembly are advanced in the forward operation, respectively.

6 and 7 are operating state cross-sectional views respectively showing states before the cylinder assembly and the brush assembly are reversed during the reverse operation.

8 to 11 is a hydraulic circuit diagram of an embodiment of a pressure fluid control apparatus for automatic muzzle cleaner according to the present invention,

8 and 9 show a state in which the pressure fluid is supplied to the first, third and second lines during the forward operation of the cleaner,

10 and 11 illustrate a state in which the pressure fluid is supplied to the second, third and first lines during the reverse operation of the cleaner.

** description of the symbols for the main parts of the drawings **

10 cylinder assembly 11 cylinder body

12 cylinder front sealing plate 20 clamp assembly

21: clamp front sealing plate 22: clamp cylinder

24: clamp piston 24a: inclined cam portion

25 elastic member 26 clamp block

27: elastic member 30: piston assembly

31: rod 32: piston

33: Forward pressure fluid flow path 34: Reverse pressure fluid flow path

35: pressure fluid flow path for clamping 40: brush assembly

41: brush holder 42: brush

43: fixing member 44: bearing

60: pressure fluid source 61: main pressure fluid line

63,64: first and second pressure fluid lines 65: clamping pressure fluid lines

66: main switching valve 67,68: first, second rapid discharge valve

69,70: first and second pilot lines 71,72: first and second pressure fluid timers

73,74: First and second manual switching valve

Cylinder assembly having a sealed space therein for achieving the object of the present invention; A clamp assembly fixedly coupled to the rear end of the cylinder assembly and clamped at any position in the muzzle to secure the cylinder assembly in the muzzle; A piston rod assembly having a rod penetrating the cylinder assembly so as to be moved forward and backward in an axial direction and a piston coupled to the rod and axially movable in the cylinder assembly; A brush assembly coupled to the rod tip of the piston rod assembly and having a brush for cleaning the inside of the muzzle while making intimate contact; And a pressure fluid supply means for supplying a pressure fluid for moving the piston forward and backward and a pressure fluid for operating the clamp.

In addition, to achieve the object of the present invention, a cylinder assembly, a clamp assembly which is fixedly coupled to the rear of the cylinder assembly and the sealing space (S4) is formed by the clamp cylinder and the clamp piston, and installed inside the cylinder assembly front side Applied to an automatic muzzle cleaner having a piston rod assembly having a piston partitioning into an enclosed space S2 and a rear enclosed space S1 and a rod coupled to the piston, and a brush assembly coupled to the tip of the rod, A pressure fluid supply source; First and second pressure fluid lines connected to the pressure fluid supply source for supplying pressure fluid to the rear sealed space S1 and the front sealed space S2, respectively; A main switching valve having a pilot end at both ends and selectively connecting either one of said first and second pressure fluid supply lines to said pressure fluid supply source; A clamping pressure fluid supply line branched from the first pressure fluid supply line to supply a pressure fluid to the closed space S4 of the clamp; First and second pilot lines branched from the first and second pressure fluid supply lines to transfer a pneumatic signal to a pilot end of the main switching valve; And a first and second pneumatic timers installed in the middle of the first and second pilot lines for delaying a pneumatic signal for a predetermined time. The pressure fluid control apparatus for an automatic muzzle cleaner is provided.

Hereinafter, the automatic muzzle cleaner according to the present invention and the pressure fluid control device used therein will be described in detail according to the embodiment shown in the accompanying drawings.

1 to 7 show an embodiment of the automatic muzzle cleaner according to the present invention, Figures 8 to 11 show a pressure fluid control device according to the present invention.

In the present invention, the pressure fluid may be compressed air or compressed oil, and may be selectively used depending on the object to be applied. In particular, when applied to cleaning the artillery of canvas, the pneumatic source installed on the canvas may be used.

1 and 2, 10 is a cylinder assembly that can be inserted into the inside of the muzzle 100, 20 is a piston rod assembly that can linearly reciprocate within the cylinder assembly 10, and 30 is the cylinder assembly ( 10 is a clamp assembly coupled to the rear end of 40, and 40 is a brush assembly fixedly coupled to the tip of the piston rod assembly 20.

The cylinder assembly 10 is composed of a cylindrical cylinder body 11, and a cylinder front sealing plate 12 for sealing the front end of the cylindrical cylinder body (11).

Both ends of the cylinder body 11 are fitted with airtight holding members 13 and 14 having U-shaped grooves 13a and 14a facing each other.

The clamp assembly 20 includes a clamp front sealing plate 21 coupled to a rear end of the cylinder assembly 10, a cylindrical clamp cylinder 22 coupled to a rear surface of the clamp front sealing plate 21, and Clamp back plate 23 coupled to the clamp operating space (S3) at a predetermined interval behind the clamp cylinder 22, and installed in the clamp cylinder 23 to enable linear reciprocating movement of the clamp front sealing plate A clamp piston 24 having an inclined cam portion 24a which forms a sealed space S4 between the 21 and a diameter located toward the rear portion of the clamp operating space S3, and the clamp; Clamp having an elastic member 25 for elastically supporting the piston 24 to the front side, and the inclined cam hole (26a) is installed to be movable in the radial direction in the clamp operating space (S3) coupled to the inclined cam portion (24a). Block 26 and phase An elastic member 27 for elastically supporting the clamp block 26 in the direction of pulling the clamp block 26 at all times, and a clamp pad 28 coupled to an outer end of the clamp block 26 and in close contact with an inner circumferential surface of the muzzle 100. It is composed of

An operating space S5 for operating the clamp piston 24 is formed inside the clamp cylinder 22, and a recess 21a is formed at a rear surface of the clamp front sealing plate 21, and the clamp piston ( 24 is formed on the front side of the front surface opposing the groove portion 21a so that the clamp piston 24 and the clamp front sealing plate 21 may be moved even when the clamp piston 24 is completely moved forward. The sealed space S4 is left.

A locking jaw 24c is formed at the rear end side of the inclined cam portion 24a of the clamp piston 24 so that the elastic member 25 is caught between the locking jaw 24c and the clamp back plate 23. have.

At the rear end of the clamp piston 24, a guide portion 24d, which is guided through the guide hole 23a drilled in the clamp back plate 23, is extended.

The clamp back plate 23 may be composed of two plates to maintain strength, but is not necessarily limited thereto.

The clamp block 26 is formed in a plurality of (at least two) fan-shaped, each forming a pair of arc-shaped grooves (26d), the elastic member 27 is formed in a C-shaped By clamping the ring-shaped elastic member 27 in the arc-shaped groove 26d, the clamp block 26 is elastically supported in the direction in which it always rolls in the axial center direction.

In addition, the clamp block 26 is formed with a guide hole 26b in the radial direction as shown in Figure 3, the process of fastening the clamp cylinder 22 and the clamp back plate 23 with a bolt 29a By allowing the bolt 29a to pass through the guide hole 26b, the clamp block 26 is guided radially by the guide hole 26b and the bolt 29a.

In addition, the bolt 29a is preferably fitted with a guide bushing (29b) in sliding contact with the inner peripheral surface of the guide hole (26b) to facilitate the radial operation of the clamp block (26).

The clamp pad 28 is inserted into and fixed to a pad insertion groove 26c formed on an outer surface of the clamp block 26.

The piston rod assembly 30 passes through the cylinder front sealing plate 12, the airtight holding members 13 and 14, the clamp front sealing plate 21, the clamp piston 24, and the clamp back plate 23. 31 and a piston 32 fixed to a predetermined portion of the rod 31 and installed to be reciprocated in a state of being in close contact with the inner circumferential surface of the cylinder body 11.

The rod 31 and the piston 32 are formed in a circular cross section.

The piston 32 divides the inner space of the cylinder body 11 into a rear side sealing space S1 and a front side sealing space S2.

In addition, U-shaped grooves 32a and 32b opposed to the U-shaped grooves 13a and 14a of the hermetic holding members 13 and 14 are formed on both side surfaces of the piston 32 so that the piston 32 Even when located at the bottom dead center, the space is formed by the U-shaped grooves 13a and 14a and 32a and 32b.

Inside the rod 31, a pressure fluid supply means for supplying a pressure fluid for moving the piston 32 forward and backward and a pressure fluid for moving the clamp piston 24 forward and backward is provided.

The pressure fluid supply means for supplying the pressure fluid to the forward pressure fluid passage 33 for supplying the pressure fluid to the rear side sealed space (S1) of the cylinder body 11, and the front side sealed space (S2). A reverse pressure fluid flow path 34 and a clamping pressure fluid flow path 35 for supplying a pressure fluid to the closed space S4 of the clamp assembly 20 are formed.

Outer ends of the forward pressure fluid passage 33 and the reverse pressure fluid passage 34 are formed with ports 33a and 34a for connecting to a pressure fluid supply source, and the inner end of the front side sealed space S1. And pressure fluid discharge holes 33b and 34b which are opened in the rear side sealed space S2.

That is, the pressure fluid discharge hole (33b) is located in front of the front end surface of the piston 32, the pressure fluid discharge hole (34b) is located behind the rear end surface of the piston (32), respectively.

An outer end of the clamping pressure fluid passage 35 is formed with a port 35a for connecting to a pressure fluid supply source, and an inner end of the pressure fluid passage 35 is opened in the closed space S4 of the clamp assembly 20. The ball 35b is formed.

The ports 33a, 34a, 35a are connected to the pressure fluid supply source via pressure fluid hoses 33c, 34c, 35c.

The brush assembly 40 includes a cylindrical brush holder 41 rotatably coupled to a brush connecting portion 36 formed at the tip of the rod 10, and a brush 42 planted on an outer circumferential surface of the brush holder 41. It consists of.

The brush holder 41 may be directly rotatably coupled to the tip brush connecting portion 36 of the rod 10, but as shown in the example, the cylindrical fixing member 43 is fixed to the brush connecting portion 36 of the rod 10. And it is preferable to smoothly rotate the entire brush assembly 40 by coupling through the bearing 44 to the outer peripheral side of the fixing member 43.

In addition, the brush holder 41, the cylindrical fixing member 43 and the bearing 44 is installed between the brush assembly housing 45, 46, the brush assembly housing 45 and the fixing member 43 is a fixing screw ( 47) is fastened and fixed.

In FIG. 1 and FIG. 2, reference numeral 51 is a bolt for fastening the cylinder front sealing plate 12 and the clamp front sealing plate 21, and 52 denotes the clamp front sealing plate 21 and the clamp cylinder 22. Bolt for fastening.

The automatic muzzle cleaner according to the present invention configured as described above connects the ports 33a, 34a, 35a to the pressure fluid supply source with a hose and the like, and the pressure fluid flow paths 33, 34 are inserted in the inside of the muzzle 100. By selectively supplying the pressure fluid at 35, the cleaning is carried out while automatically moving forward and backward in the muzzle 100. Hereinafter, the cleaning process will be described in detail step by step.

Initially, as illustrated in FIG. 3, the brush assembly 40, the cylinder assembly 10, and the clamp assembly 20 as a whole are moved to the muzzle 100 with the piston rod assembly 20 and the brush assembly 40 reversed. In the inserted state, the pressure fluid is supplied from the pressure fluid supply source to the forward pressure fluid flow path 33 and the clamping pressure fluid flow path 35.

The pressure fluid supplied to the clamping pressure fluid passage 35 is discharged into the closed space S4 through the pressure fluid discharge hole 35b and pushes the clamp piston 24 in the reverse direction, and the clamp piston 24 is an elastic member. Reverse the elasticity of (25).

At this time, since the guide portion 24d of the clamp piston 24 is guided by the guide hole 23a of the clamp back plate 23, the reverse operation is performed smoothly.

As the clamp piston 24 moves backward, the clamp block 26 overcomes the elasticity of the elastic member 27 by the cam action of the inclined cam portion 24a and the inclined cam hole 26a of the clamp block 26. It will happen. At this time, since the clamp block 26 is guided in the radial direction by the guide hole 26b and the bolt 29a, the operation thereof is accurately performed in the radial direction.

At this time, since the guide bushing 29b is fitted to the bolt 29a, the guide action with the guide hole 26b is made more smoothly.

As the clamp block 26 opens outwardly, the clamp pad 28 coupled to the clamp block 26 comes into close contact with the inner circumferential surface of the muzzle 100, thereby fixing the entire clamp assembly 20 to a predetermined position in the muzzle 100. Let's go.

On the other hand, the pressure fluid supplied to the forward pressure fluid flow path 33 is a rear side sealed space (S1) formed by the cylinder body 11 of the cylinder assembly 10 and the piston 32 of the piston rod assembly 30. The discharge force is applied to the piston 32 in the forward direction and the reverse direction force is applied to the clamp front sealing plate 21 of the clamp assembly 20, wherein the clamp assembly 20 is located at a predetermined position of the muzzle 100. And the cylinder assembly 10 is fixedly coupled to the clamp assembly 20, so that the piston 32 moves forward with the clamp assembly 20 and the cylinder assembly 10 fixed as shown in FIG. As the rod 31 coupled thereto is advanced, the brush assembly 40 coupled to the rod 31 is advanced.

When the pressure fluid supplied to the forward pressure fluid flow path 33 is again cut off and the pressure fluid is supplied to the reverse pressure fluid flow path 34, the pressure fluid is connected to the cylinder body 11 of the cylinder assembly 10. The discharge direction is applied to the piston 32 in a forward direction to the cylinder front sealing plate 12 of the cylinder assembly 10 while being discharged from the front sealed space S2 formed by the piston 32 of the piston rod assembly 30. The clamp assembly 20 is fixed at a predetermined position of the muzzle 100 and the cylinder assembly 10 is fixedly coupled to the clamp assembly 20, so that the clamp assembly 20 is shown in FIG. ) And the cylinder assembly 10, the piston 32 is reversed in a fixed state, the rod 31 coupled thereto is advanced and the brush assembly 40 coupled to the rod 31 is reversed. .

As the brush assembly 40 moves forward and backward in this manner, the brush 42 contacts the inner circumferential surface of the muzzle 100 to be cleaned.

At this time, since the brush holder 41 of the brush assembly 40 is rotatably installed at the tip brush connecting portion 36 of the rod 31 by the fixing member 43 and the bearing 44, the brush 42 is a muzzle ( The cleaning effect is maximized by rotating along the steel wire of 100).

The forward and reverse of the rod 31 and the brush assembly 40 is made by the stroke of the piston 32 by the cylinder assembly 10 and the piston rod assembly 30.

Next, when the automatic muzzle cleaner is advanced to move the cleaning site, the supply of the pressure fluid to the forward pressure fluid passage 33 and the clamping pressure fluid passage 35 is stopped, and the reverse pressure fluid passage 34 is stopped. ) Is supplied with pressure fluid.

When the pressure in the rear sealed space S1 and the sealed space S4 connected to the forward pressure fluid passage 33 and the clamping pressure fluid passage 35, respectively, is removed, the clamp piston 24 is made of an elastic member ( 25, the cam block is moved by the inclined cam portion 24a of the clamp piston 24 and the inclined cam hole 26a of the clamp block 26. Therefore, the clamp block 26 is elastic member ( 27, the clamp pad 28 is spaced apart from the inner circumferential surface of the muzzle 100 so that the clamp is released and the clamp assembly 20 and the cylinder assembly 10 are in the muzzle 100. You can move from.

In this state, the piston 32 is retracted by the pressure fluid supplied to the front side sealed space S2 through the reverse pressure fluid passage 34, and thus the forward pressure fluid passage 34 and the rear side seal are closed. The air in the space S1 is discharged through the forward pressure fluid flow path 34.

At this time, the clamp assembly 20 and the cylinder assembly 10 can be freely moved within the muzzle 100, and the brush assembly 40 has the brush 42 pressed against the inner circumferential surface of the muzzle 100. In this state, the clamp assembly 20 and the cylinder assembly 10 can be easily moved relative to the brush assembly 40 in the free view.

Therefore, since the piston 32 tries to retreat but the brush assembly 40 fixedly coupled to the rod 31 of the piston 32 is pressed against the inner circumferential surface of the muzzle 100, the cylinder assembly 10 and the clamp are relatively inclined. The assembly 20 is dragged toward the brush assembly 40 so that the cylinder front sealing plate 12 of the cylinder assembly 10 is in close contact with the rear brush housing 46 of the brush assembly 40 as shown in FIG. 6. It becomes

This state is advanced as much as the stroke of the piston 32 in the initial state of FIG. 4, and the relative positions of each cylinder assembly 10, clamp assembly 20, piston rod assembly 30, and brush assembly 40 are It is the same state as the initial state of FIG.

In the fixed state of the cylinder assembly 10 and the clamp assembly 20, forward and backward operations of the piston rod assembly 30 and the brush assembly 40 and forward operations of the cylinder assembly 10 and the clamp assembly 20 are performed. Repeatedly, the cleaning is performed over the entire length of the muzzle 100.

Explain the process of exiting the muzzle after the next cleaning.

6 is a state in which the cleaning is completed to the inner end of the muzzle 100, the rear side of the cylinder assembly 10 through the advance pressure fluid flow path 33 in the state that the clamping of the clamp assembly 20 is released When a pressure fluid is supplied to the closed space S1, a forward force is applied to the piston 32, and a backward force is applied to the cylinder assembly 10, which is coupled to the tip of the rod 31 of the piston 32. Since the brush 42 of the brush assembly 40 is pressed against the inner circumferential surface of the muzzle 100, the clamp assembly 20 and the cylinder assembly 10 may be easily moved in comparison with the brush assembly 40 in the free view. It is in a state.

Accordingly, since the piston 32 tries to move forward, but the brush assembly 40 fixedly coupled to the rod 31 of the piston 32 is pressed against the inner circumferential surface of the muzzle 100, the cylinder assembly 10 and the clamp are relatively relatively. The assembly 20 is pushed out of the brush assembly 40 so that the cylinder assembly 10 and the clamp assembly 20 are reversed by the stroke of the piston 32 as shown in FIG.

Next, when the pressure fluid is supplied to the front side sealed space S2 and the sealed space S4 through the reverse pressure fluid flow path 34 and the clamping pressure fluid flow path 35, the clamp assembly is operated as described above. 20 is fixed in the muzzle 100 and in this state the piston 32 is retracted so that the brush assembly 40 fixed at the tip of the rod 31 of the piston 32 is retracted by the stroke of the piston 32. Done.

By repeating this operation, the automatic muzzle cleaner according to the present invention exits from the muzzle 100.

Hereinafter, a pressure fluid control device suitable for the automatic muzzle cleaner of the present invention will be described according to the embodiment shown in FIGS. 8 to 11.

8 to 11, 60 is a pressure fluid supply source, 61 is a main pressure fluid line for supplying pressure fluid from the pressure fluid supply source 60, and 62 is installed in the middle of the main pressure fluid line 61 and is an automatic muzzle. It is an on / off valve for opening the main pressure fluid line 61 only when using a cleaner and closing the main pressure fluid line 61 when not in use.

The pressure fluid supply 60 may use a pressure fluid supply source such as a pneumatic supply source mounted on a canvas.

The on-off valve 62 is a solenoid valve is used.

The main pressure fluid line 61 is connected to the first pressure fluid line 63 connected to the port 33a of the forward pressure fluid flow path 33 and the port 34a of the reverse pressure fluid flow path 34. A second pressure fluid line 64 to be connected is connected through a main switching valve 66 having a straight port a and a cross port b.

The main switching valve 66 has pilot ends 66a and 66b.

In addition, first and second rapid discharge valves 67 and 68 are provided in the middle of the first pressure fluid line 63 and the second pressure fluid line 64, respectively.

The first and second quick discharge valves 67 and 68 are clamped pressure fluid lines by causing the pressure fluid discharged through the ports 33a and 34a in the closed spaces S1 and S2 to be rapidly discharged into the atmosphere. 65) to prevent backflow.

A clamping pressure fluid line 65 connected to the port 35a of the clamping pressure fluid passage 35 is branched to the first pressure fluid line 63.

A first pilot line 69 is branched to the first pressure fluid line 63 and connected to one pilot end of the main switching valve 62, and a second to the second pressure fluid line 64. The pilot line 70 is branched and connected to the other pilot end of the main switching valve 62.

In the middle of the pilot lines 69 and 70, first and second pressure fluid timers 71 and 72 having straight ports a and cross ports b are respectively provided. These first and pressure fluid timers 71 and 72 are provided with pilot ends 71a and 72a, their own pilot lines 71b and 72b and springs 71c and 72c. Alternatively, after a predetermined time elapses from the time when the pressure fluid is supplied to the second pressure fluid line 64, the pressure fluid signal is applied to the pilot end of the main switching valve 66.

First manual switching having a straight port (a) and a crossover port (b) between the upstream lines (63a, 64a) and the downstream lines (63b, 64b) of the first and second pressure fluid lines (63, 64). A valve 73 is provided and has a straight port a and an intersecting port b between the upstream lines 69a and 70a of the pilot lines 69 and 70 and the downstream lines 69b and 70b. 2 manual switching valve 74 is installed.

Hereinafter, the operation of the pressure fluid control apparatus according to the present invention will be described in connection with the operation of the automatic muzzle cleaner described above.

FIG. 8 is a pressure fluid circuit diagram in which the clamp assembly 20 is clamped and the piston rod assembly 30 and the brush assembly 40 are advanced. In this state, the on / off valve 62 at the pressure fluid supply 60 is shown. The pressure fluid supplied to the main pressure fluid line 61 through) is supplied to the first pressure fluid line 63 and the clamping pressure fluid line 65 through the straight port a of the main switching valve 66. .

In this case, the pressure fluid supplied to the first pressure fluid line 63 is connected to the cylinder through the straight port a of the first manual switching valve 73, the first rapid discharge valve 67, and the pressure fluid flow path 33 for the forward pressure. The pressure fluid supplied to the rear side sealing space S1 of the assembly 10 and supplied to the pressure fluid line 65 for clamping is sealed in the clamp assembly 20 through the pressure fluid flow path 35 for clamping. Is supplied.

Accordingly, the cleaning is performed by the forward operation of the piston rod assembly 30 and the brush assembly 40 simultaneously with the above-described clamping operation.

As the piston rod assembly 30 moves forward, the air in the front side sealed space S2 is discharged through the port 34a. Since the second pressure fluid line 64 is provided with the first rapid discharge valve 68, It is released rapidly.

When the forward operation of the piston rod assembly 30 and the brush assembly 40 is completed and the pressure of the rear side sealing space S1 rises by a certain level or more, the pressure fluid supplied to the first pressure fluid line 63 is made. 1 The pilot line of the first pressure fluid timer 71 is bypassed to the first pilot line 69 branched from the pressure fluid line 63 through the straight port a of the second manual switching valve 74. Supplied via 71c, whereby the first pressure fluid timer 71 is operated so that its straight port a coincides with the first pilot line 69, and the pressure fluid continues to the first pilot line. Supply to the pilot stage 66a of the main switching valve 66 through the 69 to operate the main switching valve 66, the straight port (a) as shown in Figure 9 is the first pressure fluid line ( 63) and the crossover port (b) coincides with the first pressure fluid line (63) and the second pressure fluid line (64).

In this state, as shown in FIG. 9, the pressure fluid supplied through the main pressure fluid line 61 is supplied to the second pressure fluid line 64 through the crossover port b of the main switching valve 66. It is supplied to the front side sealed space S2 via the second quick discharge valve 68 and the port 34a, so that the piston 32, the rod 31, and the brush assembly 40 move backward to perform cleaning. do.

As the piston rod assembly 30 moves backward, air in the rear sealed space S1 is discharged through the port 33a. Since the first pressure fluid line 63 is provided with the first rapid discharge valve 67, It is released rapidly.

The pressure fluid flowing through the downstream line 64b of the second pressure fluid line 64 is downstream from the upstream line 70a of the pilot line 70 through the straight port a of the second manual switching valve 74. 70b, the pressure fluid acts on the pilot stage 72a through the pilot line 72b of the second pressure fluid timer 72, and after a certain time is delayed, the straight port a Is connected to the pilot line 70, the pressure fluid acts on the pilot stage (b) of the main switching valve 66, the main switching valve 66 is switched to the state of FIG.

10 is a pressure fluid circuit diagram of clamping the clamp assembly 20 and simultaneously retracting the piston rod assembly 30 and the brush assembly 40, in which the pressure fluid supplied to the main pressure fluid line 61 is shown. Is supplied to the first pressure fluid line (63) through the straight port (a) of the main switching valve 66, and is branched to the clamping pressure fluid line (65) branched from the first pressure fluid line (63). .

Here, the upstream line 63a of the first pressure fluid line 63 and the downstream line 64b of the second pressure fluid line 64 are connected by the crossover port b of the first manual switching valve 73. The pressure fluid supplied to the first pressure fluid line 63 is supplied to the front side sealed space S2 and the pressure fluid supplied to the clamping pressure fluid line 65 is the sealed space S4 of the clamp assembly 20. Is supplied.

Therefore, the clamp assembly 20 is clamped by the pressure fluid supplied to the sealed space S4 and the piston rod assembly 30 and the brush assembly 40 are reversed by the pressure fluid supplied to the front sealed space S2. The operation is made.

The pressure fluid flowing in an upstream side of the second pressure fluid line 64 is connected to the first through the crossing port b of the second manual switching valve 74 in the upstream line 70a of the second pilot line 70. Flows to the downstream line 69b of the pilot line 69 and is supplied to the first pressure fluid timer 71 to act on the pilot stage 71a through the pilot line 71b after a predetermined time delay. Accordingly, the straight port a of the first pressure fluid timer 71 connects the downstream line 69b so that the pressure fluid acts on the pilot stage 66a of the main switching valve 66. As shown in FIG. 6, the main switching valve 66 is switched to a state where the crossing port b coincides with the first and second pressure fluid lines 63 and 64.

In the state of FIG. 11, the pressure fluid supplied from the main pressure fluid line 61 is supplied to the second pressure fluid line 64 through the crossover port b of the main switching valve 66, and the second pressure fluid line ( In the upstream line (64a) of the 64 is supplied to the downstream side of the first pressure fluid line (63) through the crossover port (b) of the first manual switching valve (73) is supplied to the rear closed space (S1) and the piston The rod assembly 30 and the brush assembly 40 are advanced.

At this time, the air in the front side closed space (S2) and the closed space (S4) of the clamp is rapidly discharged through the second quick discharge valve (68).

In addition, the pressure fluid flowing through the downstream line 63a of the first pressure fluid line 63 is connected to the crossover port b of the second manual switching valve 74 in the upstream line 69a of the first pilot line 69. And flows to the downstream line 70b of the second pilot line 70, where it is supplied to the second pressure fluid timer 72, where the pressure fluid passed through the second pressure fluid timer 72 after being delayed for a predetermined time. Acts on the pilot stage (b) of the main selector valve (66), so that the main selector valve (66) has its straight port (a) coincident with the first and second pressure fluid lines (63, 64). Will be switched to the state.

Through this process, the pressure fluid control apparatus returns to the initial state and waits for the next process.

As described above, according to the present invention, there is an effect of automatically and quickly cleaning the muzzle of the long gun canvas by using a pressure fluid of the canvas itself without using a separate power source. In addition, there is an effect that it is possible to exclude the risk of failure in the field or the use of electricity by not using electrical and electronic components. In addition, since the brush can be rotated along the steel wire of the muzzle, it can eliminate the kink, the direction of operation and the resistance element of the pressure fluid hose during the forward and reverse to provide a more reliable device. In addition, since the clamp pad is in close contact with the inner surface of the muzzle during clamping operation of the clamp assembly, the clamp and cleaning can be performed smoothly even in the muzzle with oil or foreign matter.

In addition, in the embodiment of the present invention is illustrated that the application to the cleaning of the muzzle, but is not necessarily limited to this, those skilled in the art will be able to perform various modifications and equivalents therefrom. In addition, the field of defense can be applied to the development of automatic gun muzzle cleaners of various calibers, and in the civilian field, it can be applied to the development of cleaners such as pipes of nuclear power plants, cylinders of internal combustion engines, and tubular ducts.

Claims (15)

A cylinder assembly having a sealed space therein; A clamp assembly fixedly coupled to the rear end of the cylinder assembly and clamped at any position in the muzzle to secure the cylinder assembly in the muzzle; A piston rod assembly having a rod penetrating the cylinder assembly so as to be moved forward and backward in an axial direction and a piston coupled to the rod and axially movable in the cylinder assembly; A brush assembly coupled to the rod tip of the piston rod assembly and having a brush for cleaning the inside of the muzzle while making intimate contact; And a pressure fluid supply means for supplying a pressure fluid for moving the piston forward and backward and a pressure fluid for operating the clamp. According to claim 1, wherein the cylinder assembly is composed of a cylinder body, a cylinder front sealing plate for sealing the front of the cylinder body, by the piston to the front side sealing space (S2) and the rear side sealing space (S1). Automatic muzzle cleaner characterized in that the compartment. The clamp assembly of claim 1, wherein the clamp assembly comprises: a clamp front sealing plate coupled to the rear of the cylinder assembly; a cylindrical clamp cylinder coupled to the rear of the clamp front sealing plate; A clamp back plate coupled to the space S3, a clamp piston installed in the clamp cylinder so as to be linearly reciprocated to form a closed space S4 between the clamp front sealing plate, and the clamp operation And a clamp block that is installed to be movable in a radial direction in the space S3 and works in conjunction with the forward and backward operations of the clamp piston, and a clamp pad that is coupled to the outer circumferential surface of the clamp block and adheres to the inner circumferential surface of the muzzle Automatic muzzle cleaner. According to claim 3, wherein the clamp piston is formed in the inclined cam portion that is smaller in diameter toward the rear portion located in the clamp operating space (S3), the inclined cam hole is coupled to the inclined cam portion is formed in the clamp block Automatic muzzle cleaner, characterized by the above. The automatic muzzle cleaner according to claim 3 or 4, further comprising an elastic member for elastically supporting the clamp piston in a direction opposite to the direction in which the pressure fluid acts on the closed space. The automatic muzzle cleaner according to claim 3 or 4, wherein at least one elastic member is provided to elastically support the clamp block in an axial center direction. According to claim 3 or claim 4, wherein the clamp block is formed in the radial guide hole, the guide hole through the bolt coupling the clamp front sealing plate and the clamp back plate through the clamp block to guide the radial direction Automatic muzzle cleaner characterized in that configured to be. According to claim 1, wherein the pressure fluid supply means for supplying the pressure fluid in the forward pressure fluid flow path for supplying the pressure fluid to the rear sealed space (S1) of the cylinder body, the front sealed space (S2) And a backing pressure fluid passage for clamping and a clamping pressure fluid passage for supplying a pressure fluid to the closed space (S4) of the clamp assembly. 10. The method of claim 8, wherein the forward pressure fluid flow path, the reverse pressure fluid flow path and the clamping pressure fluid flow path are formed inside the piston, and each outer end is provided with a port for connecting to the pressure fluid supply source. Automatic pressure muzzle cleaner, characterized in that the pressure fluid discharge hole opening in the front closed space (S1) and the rear closed space (S2) and the clamp closed space (S4) is formed at the inner end. The automatic muzzle cleaner according to claim 1, wherein the brush assembly comprises a brush holder coupled to a tip of the rod and a brush coupled to an outer circumferential surface of the brush holder. The automatic muzzle cleaner according to claim 10, wherein the brush holder is rotatably coupled to the tip of the rod. The automatic muzzle cleaner according to claim 11, wherein the brush holder is coupled to a fixing member fixed to the tip of the rod via a bearing. A clamp assembly fixedly coupled to the cylinder assembly, the rear of the cylinder assembly, and having a sealed space S4 formed by the clamp cylinder and the clamp piston, and installed inside the cylinder assembly to seal the front closed space S2 and the rear side. A pressure fluid supply source which is applied to an automatic muzzle cleaner having a piston rod assembly having a piston partitioning into a space S1 and a rod coupled to the piston, and a brush assembly coupled to the tip of the rod; First and second pressure fluid lines connected to the pressure fluid supply source for supplying pressure fluid to the rear sealed space S1 and the front sealed space S2, respectively; A main switching valve having a pilot end at both ends and selectively connecting either one of said first and second pressure fluid supply lines to said pressure fluid supply source; A clamping pressure fluid supply line branched from the first pressure fluid supply line to supply a pressure fluid to the closed space S4 of the clamp; First and second pilot lines branched from the first and second pressure fluid supply lines to transfer a pneumatic signal to a pilot end of the main switching valve; And first and second pneumatic timers installed in the middle of the first and second pilot lines for delaying a pneumatic signal for a predetermined time period. 15. The method of claim 13, wherein the first and second pressure fluid supply lines and the first and second pilot lines are installed in the first and second pilot line, characterized in that the first and second manual switching valve is provided for switching the arrangement of the line mutually Pressure fluid control device for muzzle cleaners. The first and second rapid discharge valves according to claim 13, wherein the first pressure fluid supply line discharges the pressure fluid discharged from the rear sealed space S1 and the front sealed space S2 to the outside. Pressure fluid control device for automatic muzzle cleaner, characterized in that.