Cleaning device for launching tube of rocket launcher

By using a combination of high-pressure airflow and brushes for cleaning, this method solves the problems of low efficiency, incomplete cleaning, long time consumption, and easy damage to the tube wall caused by traditional manual cleaning methods. It achieves efficient, thorough, and safe cleaning of rocket launcher tubes and is applicable to the cleaning of rocket launcher tubes and other tubular equipment.

CN223992555UActive Publication Date: 2026-03-13AIR FORCE ENG UNIV OF PLA AIRCRAFT MAINTENACE MANAGEMENT SERGEANT SCHOOL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-10
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Traditional manual cleaning methods are insufficient to meet the requirements for efficient, thorough, and safe cleaning of rocket launcher tubes, resulting in problems such as low cleaning efficiency, incomplete cleaning, long cleaning time, and easy damage to the tube walls.

Method used

It employs a combined cleaning method of high-pressure airflow and brushes. Through the blower assembly and brush design inside the cleaning cylinder, combined with the hollow shaft motor drive, it achieves multi-stage cleaning. It utilizes the dual action of high-pressure airflow and brushes to remove stubborn deposits from the inner wall of the discharge tube, and the cleaning effect is enhanced by the replaceable brush types.

Benefits of technology

It achieves efficient and thorough cleaning, significantly shortens cleaning time, reduces labor intensity, protects the inner wall of the launch tube, ensures no cleaning residue, and has a compact structure that is easy to maintain.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model provides a cleaning device for a launching tube of a rocket launcher, which belongs to the technical field of military equipment maintenance and comprises a rod body which is of a hollow structure, an air blowing assembly is arranged in the rod body, a plurality of air inlet holes corresponding to the air blowing assembly are further formed in the rod body, and the air inlet holes are communicated with the hollow structure of the rod body. The cleaning cylinder is fixed to the end of the rod body, an air guide cavity is formed in the cleaning cylinder, the hollow structure of the rod body communicates with the air guide cavity, a plurality of air outlets are further formed in the cleaning cylinder, and the two ends of the air outlets communicate with the air guide cavity and the outer wall face of the cleaning cylinder correspondingly; high-pressure airflow can be input into the launching tube through the cleaning cylinder, so that sundries in the launching tube can be cleaned, and the inner side wall of the launching tube cannot be abraded.
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Description

Technical Field

[0001] This utility model relates to the field of military equipment maintenance technology, specifically to a rocket launcher tube cleaning device. Background Technology

[0002] In the field of military equipment maintenance, rocket launchers are key weapon systems, and the cleaning and maintenance of their launch tubes is crucial to ensuring the performance and safety of the weapon system.

[0003] After a rocket launcher completes its mission, a large amount of impurities such as carbides and sulfides produced by fuel combustion remain on the inner wall of the launch tube. If these residues are not removed promptly and effectively, they will gradually accumulate and adhere to the inner wall of the launch tube, causing the inner diameter of the launch tube to gradually shrink. When launching a rocket again, the friction between the rocket and the launch tube increases significantly. This not only increases launch resistance and reduces launch efficiency, but more seriously, it may cause the rocket to become stuck in the barrel due to excessive friction during launch, leading to launch failure and even serious safety accidents.

[0004] Traditional methods of cleaning rocket launcher tubes primarily rely on manual operation, specifically using a brush to manually rub the inside of the tube to remove deposits. However, this method has several drawbacks:

[0005] Low cleaning efficiency: Manual operation is limited by the physical strength, skill level and operating environment of the operators, resulting in slow cleaning speed and difficulty in meeting the needs of rapid maintenance.

[0006] Incomplete cleaning: Due to the complex internal structure of the firing tube, it is difficult to cover all areas manually, especially the corners and hard-to-reach parts of the tube wall, resulting in unsatisfactory cleaning effect and difficulty in completely removing residues.

[0007] Time-consuming: The entire cleaning process requires operators to continuously invest a lot of time and energy, which not only increases maintenance costs but also affects the rapid response capability of weapon systems.

[0008] Easily damages the tube wall: Long-term manual cleaning with a brush may cause scratches or wear to the inner wall of the tube due to the hard bristles, affecting the tube's sealing and service life.

[0009] In view of the above problems, traditional manual cleaning methods are no longer sufficient to meet the demands of modern military equipment for efficient, thorough, and safe cleaning and maintenance. Therefore, developing a new type of rocket launcher tube cleaning device to overcome the shortcomings of traditional cleaning methods, improve cleaning efficiency, and ensure cleaning quality has become an urgent technical problem to be solved. Utility Model Content

[0010] In view of this, the present invention provides a rocket launcher tube cleaning device. The present invention can introduce high-pressure airflow into the launch tube through a cleaning cylinder, thereby removing debris inside the launch tube without causing wear to the inner wall of the launch tube.

[0011] To solve the above-mentioned technical problems, this utility model provides a rocket launcher tube cleaning device, including a rod body, which is a hollow structure, and a blower assembly is provided inside the rod body. Corresponding to the blower assembly, a number of air inlets are also provided on the rod body. The air inlets are connected to the hollow structure of the rod body. Through the blower assembly, external airflow can enter the hollow structure of the rod body through the air inlets.

[0012] The cleaning cylinder is fixed to the end of the rod. The cleaning cylinder has an air guide cavity inside. The hollow structure of the rod is connected to the air guide cavity. The cleaning cylinder also has several air outlets. The two ends of the air outlets are connected to the air guide cavity and the outer wall of the cleaning cylinder, respectively. The airflow inside the rod can enter the air guide cavity and be discharged from the air outlet.

[0013] The cleaning cylinder includes an air guide tube connected to the rod body, an air guide cone at the end of the air guide tube, and several air outlets on both the air guide tube and the air guide cone. The high-pressure airflow on the cleaning cylinder can be sprayed onto the inner wall of the launching tube from different angles.

[0014] A brush is fixed to the outer wall of the cleaning cylinder, which can clean the inner wall of the firing tube more thoroughly.

[0015] The cleaning tube has two limiting parts corresponding to the brush. These limiting parts are used to prevent the brush from becoming loose. The limiting parts are located on both sides of the brush.

[0016] A hollow shaft motor is fixed at the end of the rod. The output shaft of the hollow shaft motor is connected to the cleaning cylinder. The airflow inside the hollow structure of the rod can pass through the hollow shaft motor and enter the air guide cavity. The hollow shaft motor can drive the cleaning cylinder to rotate.

[0017] The hollow structure of the rod also houses a battery pack, which powers the hollow shaft motor. A power socket is also located at the end of the rod to supply power to the battery pack.

[0018] The rod consists of three sections: a handle, a fixed rod, and a movable rod.

[0019] The handle facilitates the application of force to the entire rod by hand. The handle has a first through hole, which contains a blower assembly, and the air inlet is also located on the handle.

[0020] A fixed rod is fixed at one end of the handle near the first through hole. A second through hole is provided through the fixed rod for gas flow. The first through hole and the second through hole are interconnected.

[0021] The movable rod is slidably disposed in the second through hole, and a third through hole is provided through the movable rod for gas flow. The second through hole and the third through hole are interconnected, and the movable rod indirectly provides support for the cleaning cylinder.

[0022] A limiting structure is also provided between the fixed rod and the movable rod. The movable rod can be fixed on the fixed rod by the limiting structure, and the movable rod can slide into the second through hole for storage.

[0023] Both the second perforation and the movable rod are T-shaped structures. The movable rod will not fall out of the second perforation. The limiting structure includes an internal thread on the end of the second perforation away from the handle, and an external thread on the movable rod near the handle corresponding to the second thread. The movable rod can be fixed to the fixed rod through the external thread and the internal thread. The movable rod can be fixed to the end of the second perforation through the threaded engagement.

[0024] The fixing rod is fixed to the end of the handle by a threaded connection, which makes it easy to disassemble the handle.

[0025] The hollow shaft motor is fixed to the end of the movable rod by a threaded connection, which facilitates the disassembly of the hollow shaft motor.

[0026] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0027] 1. Highly efficient cleaning, significantly improving cleaning efficiency:

[0028] Multi-stage cleaning synergy: The hollow shaft motor drives the cleaning cylinder to rotate, and the physical brushing of the brush and the blowing effect of the high-pressure airflow generated by the blower system achieve a dual cleaning synergy of physical and airflow. It can quickly peel off and remove stubborn deposits such as carbides and sulfides from the inner wall of the firing tube, significantly shortening the cleaning time.

[0029] Directional airflow impact: The air guide tube and air guide cone design on the cleaning tube allow high-pressure airflow to be precisely sprayed onto the inner wall of the launch tube from different angles, especially corners and crevices that are difficult to reach by traditional cleaning methods, achieving all-round cleaning without dead angles and effectively avoiding cleaning blind spots.

[0030] 2. Thorough cleaning, no residue:

[0031] Airflow-assisted peeling: The high-speed airflow generated by the blower system can not only blow the residue removed by the brush directly out of the ejector tube, but also accelerate the peeling of residue from the inner wall through airflow impact, preventing residue from re-adhering during the cleaning process and ensuring thorough cleaning.

[0032] Replaceable brush design: The brush on the outer wall of the cleaning tube is replaceable. Depending on the type of deposits on the inner wall of the tube and the cleaning needs, three types of brushes, namely coarse, medium and fine bristles, can be flexibly selected to further improve the cleaning effect and ensure that there is no residue on the inner wall.

[0033] 3. Simple operation, reducing labor intensity:

[0034] Two-stage telescopic pole design: The pole adopts a three-section structure consisting of a handle, a fixed pole, and a movable pole. The movable pole can slide and be stored inside the fixed pole, and is fixed by a limiting structure to realize the telescopic function of the pole. When stored, the pole is retracted, occupying little space and making it easy to carry and store; when in use, the movable pole extends and locks, allowing operators to easily hold the handle to clean the launch tube, reducing labor intensity.

[0035] Intelligent control unit: The lithium battery module embedded in the handle powers the blower assembly and the hollow shaft motor. The control switch can independently control the on / off state of the two modules and adjust the motor speed and gas flow. The operation is simple and quick, improving the flexibility and controllability of cleaning operations.

[0036] 4. Safe and reliable, protecting the inner wall of the launch tube:

[0037] Low-damage design: The cleaning brush is made of soft material and combined with the gentle rotation speed driven by the motor, it avoids the hard scratches and wear on the inner wall of the firing tube caused by the brush in traditional manual cleaning methods, thus protecting the sealing and service life of the firing tube.

[0038] Sealing Guarantee: The sealing ring at the end of the movable rod ensures the airtightness of the telescopic rod, preventing gas leakage and guaranteeing the stable operation and cleaning effect of the blower system.

[0039] 5. Compact structure and strong adaptability:

[0040] Modular design: The components of the cleaning device adopt a modular design, which facilitates disassembly, maintenance and replacement, reducing maintenance costs.

[0041] Wide applicability: This cleaning device is not only suitable for cleaning rocket launcher tubes, but can also be extended to the cleaning and maintenance of other similar tubular equipment by adjusting the specifications of the cleaning cylinder and the type of brush, thus having broad market application prospects. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the structure of a rocket launcher launch tube cleaning device according to the present invention;

[0043] Figure 2 This utility model Figure 1 Schematic diagram of the structure at point A;

[0044] Figure 3 This is a structural schematic diagram of a cross-sectional view of the present invention;

[0045] Figure 4 This utility model Figure 3 Schematic diagram of the structure at point B;

[0046] Figure 5 This utility model Figure 3 Schematic diagram of the structure at point C;

[0047] Figure 6 This utility model Figure 3 A schematic diagram of the structure at point D.

[0048] Explanation of reference numerals in the attached figures:

[0049] 100. Rod body; 101. Limiting structure;

[0050] 110. Handle; 111. First perforation; 112. Blower assembly; 113. Air inlet; 114. Battery pack; 115. Power socket;

[0051] 120. Fixing rod; 121. Second through hole;

[0052] 130. Movable rod; 131. Third perforation;

[0053] 200. Hollow shaft motor;

[0054] 300. Cleaning tube; 301. Air guide tube; 302. Air guide cone; 303. Air outlet; 304. Brush; 305. Limiting component; 306. Air guide cavity. Detailed Implementation

[0055] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the appendices of the embodiments of this utility model. Figure 1-6 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0056] This embodiment provides a rocket launcher launch tube cleaning device, such as... Figure 1 , 2As shown in Figures 3 and 4: The rod includes a rod body 100 and a cleaning cylinder 300. The rod body 100 has a hollow structure, within which a blower assembly 112 is installed. The rod body 100 also has multiple air inlets 113 corresponding to the hollow structure. The two ends of each air inlet 113 are connected to the hollow structure and the outer wall of the rod body 100, respectively. The blower assembly 112 can be configured as a draft fan; that is, when the draft fan is working, external airflow can enter the hollow structure of the rod body 100 through the air inlets 113. The cleaning cylinder 300 is fixed to the rod body 100. At the end of the 00, the cleaning cylinder 300 is provided with an air guide cavity 306, which is connected to the hollow structure of the rod 100. The cleaning cylinder 300 is also provided with multiple air outlets 303. The two ends of the air outlets 303 are connected to the outer wall of the cleaning cylinder 300 and the air guide cavity 306, respectively. That is, the airflow in the hollow structure of the rod 100 can enter the air guide cavity 306 and finally blow towards the inner wall of the launching tube through the air outlets 303, thereby quickly and effortlessly cleaning the debris on the inner wall of the launching tube.

[0057] Specifically, the cleaning cylinder 300 includes an air guide 301 connected to the rod body 100, such as... Figure 2 As shown: The air guide duct 301 is provided with an air guide cone 302 at its end. The air guide duct 301 is cylindrical in shape, and the air guide cone 302 is conical in shape. Both the air guide cone 302 and the air guide duct 301 are provided with multiple air outlets 303 in a ring array. Thus, the high-pressure airflow in the air guide cavity 306 can be sprayed onto the inner wall of the launch tube at different angles, achieving all-round cleaning without dead angles and effectively avoiding cleaning blind spots.

[0058] Furthermore, a brush 304 is also provided on the outer wall of the air duct 301. When cleaning the launch tube, the brush 304 can directly contact the inner wall of the launch tube, thereby working with the high-pressure airflow to clean the inner wall of the launch tube more thoroughly.

[0059] The brush 304 is detachably fixed to the air duct 301. That is, depending on the type of deposits on the inner wall of the emission tube and the cleaning needs, three specifications of brush 304, namely coarse bristles, medium bristles and fine bristles, can be flexibly selected to further improve the cleaning effect and ensure that there is no residue on the inner wall.

[0060] The cleaning cylinder 300 is also provided with two limiting members 305. The limiting members 305 are ring-shaped structures fixed on the air guide 301 and located on both sides of the brush 304. That is, the limiting members 305 can prevent the brush 304 from moving back and forth along the axis of the air guide 301.

[0061] It is worth mentioning that a hollow shaft motor 200 can also be added, such as Figure 2 , 4As shown: the hollow shaft motor 200 is fixed between the rod 100 and the air guide tube 301. The airflow in the hollow structure of the rod 100 can pass through the hollow shaft motor 200 and enter the air guide cavity 306. The operation of the motor can also drive the cleaning cylinder 300 to rotate, thereby increasing the cleaning efficiency and effect.

[0062] The hollow structure of the rod 100 also houses a battery pack 114, which can be used to power the motor and the blower assembly 112. Correspondingly, the rod 100 also has a power socket 115, which can be used to supplement the power of the battery pack 114.

[0063] The rod body 100 consists of three sections: a handle 110, a fixed rod 120, and a movable rod 130. Figure 3 , 4 As shown in Figures 5 and 6: Among them;

[0064] The handle 110 is designed to facilitate the application of force to the entire rod 100 by hand. The handle 110 has a first through hole 111, which houses the blower assembly 112 and the battery pack 114. An air inlet 113 and a power socket 115 are also located on the handle 110. The handle 110 also has a control switch corresponding to the blower assembly 112, which can be used to control the opening and closing of the blower assembly 112.

[0065] A fixing rod 120 is also fixed to the end of the handle 110. A second through hole 121 is provided through the fixing rod 120. The first through hole 111 and the second through hole 121 are connected to each other, so that the airflow in the first through hole 111 can flow into the second through hole 121. A movable rod 130 is also slidably provided in the second through hole 121. The movable rod 130 directly or indirectly provides support for the cleaning cylinder 300. A third through hole 131 is also provided through the movable rod 130 for conveying the airflow in the second through hole 121 into the cleaning cylinder 300. A limiting structure 101 is also provided between the movable rod 130 and the second through hole 121. The position of the movable rod 130 can be fixed by the limiting structure 101. That is, when storing the equipment, the movable rod 130 can be slid into the second through hole 121 for storage.

[0066] Both the movable rod 130 and the second through hole 121 are T-shaped structures, meaning that the movable rod 130 will not fall out of the second through hole 121 during the sliding process. The limiting structure 101 includes an external thread provided on the outer wall of the movable rod 130. The external thread is located on the outer wall of the wider end of the movable rod 130. An internal thread is also provided at the end of the second through hole 121 away from the handle 110. The movable rod 130 can be fixed at the end of the second through hole 121 by the internal thread and the external thread.

[0067] The fixed rod 120 is fixed to the end of the handle 110 by a threaded connection; the hollow shaft motor 200 is fixed to the end of the movable rod 130 by a threaded connection; thus, the handle 110 and the motor can be disassembled for maintenance or storage.

[0068] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0069] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A rocket launcher barrel cleaning device, characterized by: Include; The rod body (100) is a hollow structure, and the rod body (100) is provided with a blast assembly (112) inside, and a plurality of air inlet holes (113) corresponding to the blast assembly (112) are also provided on the rod body (100), which are communicated with the hollow structure of the rod body (100); The cleaning cylinder (300) is fixed at the end of the rod body (100), and the cleaning cylinder (300) is provided with a wind guide cavity (306) inside, and the hollow structure of the rod body (100) is communicated with the wind guide cavity (306), and a plurality of air outlets (303) are also provided on the cleaning cylinder (300), and the two ends of the air outlet (303) are communicated with the wind guide cavity (306) and the outer wall of the cleaning cylinder (300) respectively.

2. A rocket launcher barrel cleaning device as claimed in claim 1, wherein: The cleaning cylinder (300) includes a wind guide cylinder (301) connected with the rod body (100), and the end of the wind guide cylinder (301) is provided with a wind guide cone (302), and a plurality of air outlets (303) are provided on the wind guide cylinder (301) and the wind guide cone (302).

3. A rocket launcher barrel cleaning device as in claim 1, wherein: The outer wall of the cleaning cylinder (300) is fixed with a brush (304).

4. A rocket launcher barrel cleaning device as claimed in claim 3, wherein: Two limiting pieces (305) are provided on the cleaning cylinder (300) corresponding to the brush (304), which are used to avoid the loosening of the position of the brush (304).

5. A rocket launcher barrel cleaning device as in claim 1, wherein: The end of the rod body (100) is fixed with a hollow shaft motor (200), the output shaft of the hollow shaft motor (200) is connected with the cleaning cylinder (300), and the airflow in the hollow structure of the rod body (100) can pass through the hollow shaft motor (200) into the wind guide cavity (306).

6. A rocket launcher barrel cleaning device as claimed in claim 5, wherein: The hollow structure of the rod body (100) is also provided with a battery pack (114), which is used to power the hollow shaft motor (200), and a power socket (115) is also provided at the end of the rod body (100) corresponding to the battery pack (114).

7. A rocket launcher barrel cleaning device as in claim 1, wherein: The rod body (100) is composed of three sections of handle (110), fixed rod (120) and movable rod (130), wherein; The handle (110) is convenient for hand holding to apply force to the whole rod body (100), the first perforation (111) is provided in the handle (110), the blast assembly (112) is provided in the first perforation (111), and the air inlet hole (113) is also provided on the handle (110); The end of the fixed rod (120) is fixed on the handle (110) near one end of the first perforation (111), and the second perforation (121) is provided through the fixed rod (120) for gas flow; The movable rod (130) is slidably arranged in the second perforation (121), and the third perforation (131) is provided through the movable rod (130) for gas flow, and the movable rod (130) indirectly provides support for the cleaning cylinder (300); The limiting structure (101) is also provided between the fixed rod (120) and the movable rod (130), which can fix the movable rod (130) on the fixed rod (120).

8. A rocket launcher barrel cleaning device as claimed in claim 7, wherein: The second through hole (121) and the movable rod (130) are T-shaped structures, the limiting structure (101) comprises an inner thread arranged at one end of the second through hole (121) away from the handle (110), and the movable rod (130) is provided with an outer thread at one end close to the handle (110), and the outer thread and the inner thread can fix the movable rod (130) on the fixed rod (120).

9. A rocket launcher barrel cleaning device as claimed in claim 7, wherein: The fixed rod (120) is fixed at the end of the handle (110) through thread cooperation.