An airtightness testing device for assault boat chassis
By designing an automatic spraying and cleaning system, the problems of low detection efficiency and high intensity caused by manually applying soapy water were solved, enabling rapid and comprehensive airtightness detection and cleaning of the airbags at the bottom of the assault boat.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING JINGSUI CRUISE MFG
- Filing Date
- 2025-06-24
- Publication Date
- 2026-07-03
AI Technical Summary
In existing technologies, manually applying soapy water to test the airtightness of the airbags at the bottom of inflatable boats is inefficient and increases the workload for workers, making it impossible to conduct airtightness tests quickly and effectively.
An airtightness testing device for the chassis of an assault boat was designed. It uses a drive component and a spraying trolley to automatically spray soap solution, and combines a water pump and nozzles to carry out all-round automatic spraying and cleaning, reducing manual operation.
It improved testing efficiency, reduced the workload of staff, and enabled a rapid and comprehensive airtightness testing and cleaning process.
Smart Images

Figure CN224456099U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of airtightness testing technology, specifically an airtightness testing device for the chassis of an assault boat. Background Technology
[0002] Inflatable boats are watercraft designed for rapid mobility, primarily used in emergency rescue, military operations, and special tasks. They are particularly effective in flood disasters, enabling the rapid evacuation of people and transport of supplies. Because the overall structure of an inflatable boat is largely composed of airbags and other materials, personnel must conduct airtightness checks on the airbags, especially the bottom airbags, before use.
[0003] In existing technologies, when encountering an emergency and needing to quickly test the airtightness of the bottom airbags of an assault boat, staff typically apply soapy water to key areas such as the seams and valves of the bottom airbags and inflate the airbags. They then observe whether air bubbles are generated to determine the airtightness of the airbags. However, applying soapy water is mostly done manually by staff, and since the bottom airbags of assault boats are relatively large, this manual application method not only greatly reduces testing efficiency but also increases the workload of staff.
[0004] Therefore, this utility model provides a device for testing the air tightness of an assault boat chassis. Utility Model Content
[0005] To address the shortcomings of existing technologies and solve the problem of how, in situations requiring rapid airtightness testing of the bottom airbags of inflatable boats, workers typically apply soapy water to key areas such as the seams and valves of the bottom airbags and inflate them, then observe for air bubbles to determine airtightness. However, this process is mostly done manually, and given the large size of the bottom airbags, this manual application method significantly reduces testing efficiency and increases the workload for workers. Therefore, this invention proposes an airtightness testing device for the chassis of inflatable boats.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The airtightness testing device for the chassis of an assault boat according to this utility model includes a testing groove, a filter plate fixedly connected to the inner cavity of the testing groove, a suspension bracket provided above the testing groove, a limit rod fixedly connected to the suspension bracket, a limit block slidably connected to the limit rod, a mounting seat fixedly connected to the bottom of the limit block, a first driving component provided on the suspension bracket, the first driving component being able to drive the mounting seat to slide along the limit rod, a mounting plate fixedly connected to the bottom of the mounting seat, a mounting frame fixedly connected to the bottom of the mounting plate, a guide rod fixedly connected to the mounting frame, a spraying trolley slidably connected to the guide rod, a second driving component provided on the mounting frame, the second driving component being able to drive the spraying trolley to reciprocate along the guide rod, and a spraying component provided on the spraying trolley.
[0007] Preferably, the drive assembly includes a motor and a one-way lead screw. The motor is fixedly installed on the outer wall of the suspension bracket. The one-way lead screw is provided below the limiting rod. The one-way lead screw is rotatably connected to the suspension bracket. The output end of the motor is fixedly connected to one end of the one-way lead screw. A threaded sleeve is threaded onto the one-way lead screw, and the threaded sleeve is fixedly connected to the mounting base.
[0008] Preferably, the second drive assembly includes a second motor, a reciprocating lead screw, and a slider. The second motor is fixedly mounted on the outer wall of the mounting frame. The reciprocating lead screw is located above the guide rod. Both ends of the reciprocating lead screw are rotatably connected to the mounting frame. The output end of the second motor is fixedly connected to one end of the reciprocating lead screw. A connecting block is fixedly connected to the top of the spraying cart. A slider is movably connected to the connecting block. The slider is threadedly engaged with the reciprocating lead screw.
[0009] Preferably, the spraying assembly includes a water pump one, a nozzle one, and a nozzle two. Support plates are fixedly connected to both sides of the spraying trolley, and nozzle one and nozzle two are respectively fixedly installed on the two support plates. Water pump one and water pump two are respectively fixedly installed on both sides of the mounting base. Water pump one and water pump two are connected to liquid inlet pipes. A liquid delivery pipe is connected between water pump one and nozzle one, and another liquid delivery pipe is connected between water pump two and nozzle two.
[0010] Preferably, a pad is fixed to one side of the detection groove, the pad is in the shape of a right triangle, and a stepped frame is fixed to both sides of the pad.
[0011] Preferably, a waste discharge pipe is fixedly connected to the bottom of the side wall of the detection tank, the waste discharge pipe is connected to the inner cavity of the detection tank, and the bottom of the inner cavity of the detection tank is an inclined surface.
[0012] The beneficial effects of this utility model are as follows:
[0013] 1. The airtightness testing device for the chassis of an assault boat described in this utility model uses a drive component one to drive the mounting base to slide along the guide rod, causing the mounting frame to slide accordingly. During this process, a drive component two drives a spraying trolley to slide back and forth along the guide rod, so that the spraying components on the spraying trolley can automatically spray soap solution onto the bottom airbags of the assault boat below, avoiding the process of manual application of soapy water by the staff, improving testing efficiency and reducing workload.
[0014] 2. The air tightness testing equipment for the chassis of the assault boat described in this utility model can automatically clean the bottom airbags of the assault boat in all directions after the air tightness test is completed by using a water pump and a nozzle. The pad and step rack provided on one side of the testing tank make it easy for staff to place the assault boat in the testing tank and take it out of the testing tank. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings.
[0016] Figure 1 This is a schematic diagram of the entire utility model;
[0017] Figure 2 This is a schematic diagram of the suspension bracket of this utility model;
[0018] Figure 3 yes Figure 2 Enlarged view of a portion of point A in the middle;
[0019] Figure 4 This is an exploded view of the threaded sleeve of this utility model;
[0020] Figure 5 This is an exploded view of the spraying vehicle of this utility model;
[0021] Figure 6 This is a cross-sectional view of the detection groove of this utility model;
[0022] In the diagram: 1. Detection tank; 2. Filter plate; 3. Suspension bracket; 4. Limiting rod; 5. Motor 1; 6. One-way lead screw; 7. Sleeve; 8. Mounting base; 9. Limiting block; 10. Mounting plate; 11. Mounting frame; 12. Motor 2; 13. Reciprocating lead screw; 14. Guide rod; 15. Spraying trolley; 16. Connecting block; 17. Sliding block; 18. Support plate; 19. Nozzle 1; 20. Water pump 1; 21. Liquid inlet pipe; 22. Liquid delivery pipe; 23. Water pump 2; 24. Nozzle 2; 25. Waste discharge pipe; 26. Pad block. Detailed Implementation
[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0024] like Figures 1 to 6 As shown, the airtightness testing device for the chassis of an assault boat according to this utility model includes a testing groove 1, a filter plate 2 fixedly connected to the inner cavity of the testing groove 1, a suspension bracket 3 arranged above the testing groove 1, a limit rod 4 fixedly connected to the suspension bracket 3, a limit block 9 slidably connected to the limit rod 4, a mounting base 8 fixedly connected to the bottom of the limit block 9, and a driving component 1 provided on the suspension bracket 3. The driving component 1 can drive the mounting base 8 to slide along the limit rod 4. A mounting plate 10 is fixedly connected to the bottom of the inflatable boat, and a mounting frame 11 is fixedly connected to the bottom of the mounting plate 10. A guide rod 14 is fixedly connected to the mounting frame 11, and a spraying trolley 15 is slidably connected to the guide rod 14. A second drive assembly is provided on the mounting frame 11, which can drive the spraying trolley 15 to reciprocate along the guide rod 14. A spraying assembly is provided on the spraying trolley 15. During operation, when it is necessary to quickly test the airtightness of the bottom airbags of the inflatable boat, the operator will... The boat is placed on the filter plate 2 in the testing tank 1. The first drive component drives the mounting base 8 to slide along the guide rod 14, causing the mounting frame 11 to slide accordingly. During this process, the second drive component drives the spraying cart 15 to slide back and forth along the guide rod 14, allowing the spraying components on the spraying cart 15 to spray soapy water onto the bottom airbag of the assault boat. By observing whether bubbles are generated, the staff can quickly determine the airtightness of the bottom airbag of the assault boat. This solves the problem in the existing technology where, when it is necessary to quickly test the airtightness of the bottom airbag of the assault boat in case of an emergency, the staff usually apply soapy water to key parts such as the seams and valves of the bottom airbag of the assault boat and inflate the airbag. They then observe whether bubbles are generated to determine the airtightness of the airbag. However, when applying soapy water, the staff usually do so manually. Since the bottom airbag of the assault boat is relatively large, this manual application method not only greatly reduces the testing efficiency but also increases the workload of the staff.
[0025] The drive assembly includes a motor 5 and a one-way lead screw 6. The motor 5 is fixedly installed on the outer wall of the suspension bracket 3. The one-way lead screw 6 is located below the limiting rod 4. The one-way lead screw 6 is rotatably connected to the suspension bracket 3. The output end of the motor 5 is fixedly connected to one end of the one-way lead screw 6. A threaded sleeve 7 is threaded onto the one-way lead screw 6. The threaded sleeve 7 is fixedly connected to the mounting seat 8. During operation, when the mounting seat 8 needs to be moved, the motor 5 is started, which drives the one-way lead screw 6 to rotate. This causes the threaded sleeve 7 to move the mounting seat 8 along the limiting rod 4 until the mounting seat 8 moves to the side of the limiting rod 4 away from the motor 5 and stops. Then, the motor 5 reverses, and the mounting seat 8 quickly resets. This structure allows the spraying components on the spraying cart 15 to provide lateral, all-around coverage of the bottom airbags of the assault boat, avoiding spray dead zones.
[0026] The second drive assembly includes a second motor 12, a reciprocating lead screw 13, and a slider 17. The second motor 12 is fixedly installed on the outer wall of the mounting frame 11. The reciprocating lead screw 13 is located above the guide rod 14. Both ends of the reciprocating lead screw 13 are rotatably connected to the mounting frame 11. The output end of the second motor 12 is fixedly connected to one end of the reciprocating lead screw 13. A connecting block 16 is fixedly connected to the top of the spraying trolley 15. The slider 17 is movably connected to the connecting block 16. The slider 17 is threadedly engaged with the reciprocating lead screw 13. During operation, when the mounting base 8 moves, the second motor 12 is started, which drives the reciprocating lead screw 13 to rotate. This causes the slider 17 to drive the spraying trolley 15 to reciprocate along the guide rod 14. As the mounting base 8 slides laterally, the spraying trolley 15 can also reciprocate longitudinally, facilitating the spraying assembly to provide longitudinal, all-around coverage of the bottom airbags of the assault boat, avoiding the need for manual application by the operator.
[0027] The spraying assembly includes a water pump 20, a nozzle 19, and a nozzle 24. Support plates 18 are fixed to both sides of the spraying trolley 15, and nozzles 19 and 24 are respectively fixedly mounted on the two support plates 18. Water pump 20 and water pump 23 are respectively fixedly mounted on both sides of the mounting base 8. Both water pump 20 and water pump 23 are connected to inlet pipes 21. A delivery pipe 22 connects water pump 20 to nozzle 19, and another delivery pipe 22 connects water pump 23 to nozzle 24. During operation, fertilizer is sprayed... When applying soapy water, start water pump 20 and connect the inlet pipe 21 of water pump 20 to an external liquid supply device. This allows soapy water to flow along the inlet pipe 21, water pump 20, and delivery pipe 22 into nozzle 19, and finally spray out from nozzle 19, achieving automatic all-round spraying of the bottom airbags of the assault boat. After the airtightness test is completed, turn off water pump 20 and turn on water pump 23. Connect the inlet pipe 21 of water pump 23 to an external water supply device, allowing water to be pumped by water pump 23 to nozzle 24, and finally sprayed out from nozzle 24, achieving automatic cleaning of the bottom airbags of the assault boat.
[0028] A pad 26 is fixedly attached to one side of the detection slot 1. The pad 26 is in the shape of a right triangle. Steps are fixedly attached to both sides of the pad 26. During operation, the pad 26 and the steps on one side of the detection slot 1 make it easy for staff to place the assault boat in the detection slot 1 and take it out of the detection slot 1.
[0029] A waste discharge pipe 25 is fixedly connected to the bottom of the side wall of the detection tank 1. The waste discharge pipe 25 is connected to the inner cavity of the detection tank 1. The bottom of the inner cavity of the detection tank 1 is an inclined surface. During operation, when the spray nozzle 24 is used to wash the assault boat, the soapy water waste liquid on the filter plate 2 flows from the filter plate 2 to the bottom of the inner cavity of the detection tank 1, and is finally discharged from the waste discharge pipe 25, which facilitates centralized treatment by the staff.
[0030] Working principle: When it is necessary to quickly test the airtightness of the bottom airbag of the assault boat, the operator places the assault boat on the filter plate 2 in the test slot 1, starts motor 5, and drives the one-way lead screw 6 to rotate, causing the lead sleeve 7 to move the mounting seat 8 along the limit rod 4 until the mounting seat 8 moves to the side of the limit rod 4 away from motor 5 and stops. Then motor 5 reverses, and the mounting seat 8 quickly resets. During this process, motor 12 starts at the same time, driving the reciprocating lead screw 13 to rotate, causing the slider 17 to move the spray carriage 15 back and forth along the guide rod 14. This allows the spray carriage 15 to move longitudinally back and forth while sliding laterally with the mounting seat 8, and the water pump 20 delivers soapy water into the nozzle 19. Water is sprayed from nozzle 19, achieving all-round automatic spraying of the bottom airbags of the assault boat. The staff can quickly judge the airtightness of the bottom airbags by observing whether bubbles are generated. After the airtightness test is completed, water pump 20 is turned off and water pump 23 is turned on. The inlet pipe 21 of water pump 23 is connected to the water supply equipment, so that the water flow is pumped by water pump 23 to nozzle 24 and finally sprayed out from nozzle 24, realizing automatic cleaning of the bottom airbags of the assault boat. When using nozzle 24 to wash the assault boat, the soapy water waste liquid on filter plate 2 flows from filter plate 2 to the bottom of the inner cavity of test tank 1 and is finally discharged from waste pipe 25. Through the pad 26 and the step frame provided on one side of test tank 1, it is convenient for the staff to place the assault boat in test tank 1 and take it out of test tank 1.
[0031] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.
[0032] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.
[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A device for testing the airtightness of an assault boat chassis, characterized in that, The device includes a detection tank, in which a filter plate is fixedly connected. A suspension bracket is provided above the detection tank, and a limit rod is fixedly connected to the suspension bracket. A limit block is slidably connected to the limit rod, and a mounting base is fixedly connected to the bottom of the limit block. A first drive assembly is provided on the suspension bracket, which can drive the mounting base to slide along the limit rod. A mounting plate is fixedly connected to the bottom of the mounting base, and a mounting frame is fixedly connected to the bottom of the mounting plate. A guide rod is fixedly connected to the mounting frame, and a spraying trolley is slidably connected to the guide rod. A second drive assembly is provided on the mounting frame, which can drive the spraying trolley to reciprocate along the guide rod. A spraying assembly is provided on the spraying trolley.
2. The air tightness detection device for the bottom plate of the assault boat according to claim 1, wherein The drive assembly includes a motor and a one-way lead screw. The motor is fixedly installed on the outer wall of the suspension bracket. The one-way lead screw is provided below the limiting rod. The one-way lead screw is rotatably connected to the suspension bracket. The output end of the motor is fixedly connected to one end of the one-way lead screw. A threaded sleeve is threaded onto the one-way lead screw, and the threaded sleeve is fixedly connected to the mounting base.
3. The air tightness detection device for the bottom plate of the assault boat according to claim 2, characterized in that, The second drive assembly includes a second motor, a reciprocating lead screw, and a slider. The second motor is fixedly mounted on the outer wall of the mounting frame. The reciprocating lead screw is located above the guide rod. Both ends of the reciprocating lead screw are rotatably connected to the mounting frame. The output end of the second motor is fixedly connected to one end of the reciprocating lead screw. A connecting block is fixedly connected to the top of the spraying cart. A slider is movably connected to the connecting block. The slider is threadedly engaged with the reciprocating lead screw.
4. The air tightness detection device for the bottom plate of the assault boat according to claim 3, characterized in that, The spraying assembly includes a water pump one, a nozzle one, and a nozzle two. Support plates are fixed to both sides of the spraying trolley, and nozzle one and nozzle two are fixedly installed on the two support plates respectively. Water pump one and water pump two are fixedly installed on both sides of the mounting base respectively. Water pump one and water pump two are connected to liquid inlet pipes. A liquid delivery pipe is connected between water pump one and nozzle one, and another liquid delivery pipe is connected between water pump two and nozzle two.
5. The airtightness testing device for the chassis of an assault boat according to claim 4, characterized in that, A pad is fixed to one side of the detection groove. The pad is in the shape of a right triangle. A stepped frame is fixed to both sides of the pad.
6. The airtightness testing device for the chassis of an assault boat according to claim 5, characterized in that, A waste discharge pipe is fixedly connected to the bottom of the side wall of the detection tank. The waste discharge pipe is connected to the inner cavity of the detection tank, and the bottom of the inner cavity of the detection tank is an inclined surface.