Multifunctional overpressure exhaust device for mobile platform

Abstract

According to the multifunctional overpressure exhaust device for the mobile platform, the valve plate has automatic and manual adjusting functions, the opening degree of the valve plate can be driven through the motor according to an instruction, the internal overpressure of the mobile platform can be automatically adjusted, and when the automatic function fails, the opening degree of the valve plate can be manually adjusted, and the stable overpressure in the mobile platform can be maintained. The device has quick opening and closing functions, can quickly and automatically close the exhaust port when nuclear explosion occurs, and meets the requirements of nuclear explosion radiation protection on the mobile platform orifice part. As a channel connected with the outside, a dual-sealing structure is adopted, the sealing performance is good, and when the mobile platform is connected with the protective entrance, the mobile platform can provide fresh air, a power source and a communication interface for the protective entrance through the multifunctional overpressure exhaust device.

Description

Technical Field

[0001] The invention belongs to the technical field of nuclear, biological and chemical protection, and specifically relates to a multifunctional overpressure exhaust device for a mobile platform. Background Art

[0002] As global nuclear, biological and chemical wars and threats intensify, the requirements for nuclear, biological and chemical protection in wartime are becoming increasingly higher, such as requiring the nuclear, biological and chemical protection system to have the ability to quickly build pressure and maintain stable overpressure. Therefore, in order to meet the rapid pressure building capability, a new type of nuclear, biological and chemical protection system is required to increase the output rated air volume. However, due to the inertia of the fan blades and the feedback adjustment time delay, it is difficult for the nuclear, biological and chemical protection system to quickly establish a stable overpressure. At the same time, equipment connected to the external environment generally has poor air tightness, which affects the air tightness performance of the mobile platform. Therefore, it is urgent to develop an overpressure exhaust device for a mobile platform to meet the mobile platform's ability to quickly adjust the stable overpressure, while having good air tightness connected to the mobile platform. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] The present invention proposes a multifunctional overpressure exhaust device for a mobile platform to solve the technical problem of satisfying the ability of the mobile platform to quickly adjust the stable overpressure and at the same time having good air tightness when connected to the mobile platform.

[0005] (II) Technical solution

[0006] In order to solve the above technical problems, the present invention proposes a multifunctional overpressure exhaust device for a mobile platform, which includes an exhaust top plate, a top cover flange, a power interface, a communication interface, an exhaust device cavity, a fixed valve plate, a movable valve plate, an exhaust device fixed flange, a cam drive motor, a valve plate drive motor, a spring, a top cover pull rod, a cam, a push rod, a valve plate drive motor gear and a movable valve plate gear disc; wherein,

[0007] The top of the exhaust device cavity is fixedly connected with an exhaust device fixing flange, and the inner edge of the exhaust device fixing flange extends into the interior of the exhaust device cavity; the outer periphery of the exhaust device fixing flange is processed with a plurality of exhaust device fixing holes and protective inlet and outlet flange fixing threaded holes evenly distributed in the circumferential direction;

[0008] A fixed valve plate is fixedly connected to the bottom of the exhaust device cavity, and a movable valve plate is installed above the fixed valve plate through a rotating shaft located in the center. The movable valve plate is located inside the exhaust device cavity, and an opening matching the shape of the movable valve plate is processed on the fixed valve plate. By rotating the movable valve plate, the valve plate opening can be adjusted;

[0009] The cam drive motor is installed inside the exhaust device cavity, and the driving shaft of the cam drive motor is connected to the cam; the exhaust top plate is fixedly connected to the top of the top cover flange by top plate bolts to form a top cover; the top ends of multiple top cover tie rods pass through the exhaust device fixing flange and are fixed to the inner side of the top wall of the top cover flange, and multiple springs are respectively mounted on the corresponding top cover tie rods, and the upper and lower ends of each spring are respectively in contact with the lower surface of the exhaust device fixing flange and the nut installed at the bottom end of the top cover tie rod; the top of the push rod is fixed to the center position of the inner side of the top wall of the top cover flange, and the bottom of the push rod is in contact with the outer wall of the cam. When the cam rotates under the drive of the cam drive motor, the cam can lift or drop the push rod through the contour shape, and then the push rod drives the top cover to rise or fall as a whole, and the spring can provide pulling force for the descent of the top cover;

[0010] The valve plate drive motor is installed inside the exhaust device cavity, the valve plate drive motor gear is installed on the driving shaft of the valve plate drive motor, the movable valve plate toothed disc is fixedly connected above the movable valve plate, and the valve plate drive motor gear is meshed with the movable valve plate toothed disc; when the valve plate drive motor gear rotates under the drive of the valve plate drive motor, the valve plate drive motor gear can drive the movable valve plate to rotate through the movable valve plate toothed disc, and the valve plate opening is electrically adjusted;

[0011] The aviation plug is fixed inside the exhaust device cavity and is used to supply power to the protective entrance and exit; the power interface and communication interface are installed on the outer wall of the exhaust device cavity, the power interface is used to connect to the power supply inside the vehicle and supply power to the cam drive motor, valve plate drive motor and aviation plug; the communication interface is used to receive external control instructions and control the operation of the cam drive motor and valve plate drive motor.

[0012] Furthermore, the exhaust device fixing holes and the protective inlet and outlet flange fixing threaded holes are arranged at intervals.

[0013] Furthermore, a knob connected to the bottom end of the rotating shaft is installed below the fixed valve plate. The knob is located outside the cavity of the exhaust device and is used to manually rotate the movable valve plate.

[0014] Furthermore, there are three top cover tie rods.

[0015] Furthermore, the gravel screen is fixed to the exhaust device fixing flange by means of the gravel screen fixing screws, and is used to provide isolation protection for the interior of the exhaust device cavity when the top cover rises.

[0016] Furthermore, an annular groove is provided on the upper surface of the exhaust device fixing flange, the position of which corresponds to the bottom edge of the top cover flange, and a sealing gasket is bonded in the annular groove. The sealing gasket is compressed when the top cover is lowered to provide sealing protection for the interior of the exhaust device cavity.

[0017] Furthermore, a plurality of through holes are processed on the protective inlet and outlet air inlet duct connection flanges for avoiding the fixing bolts of the exhaust device.

[0018] Furthermore, when the mobile platform needs to connect a protective inlet and outlet, the exhaust top plate is removed, the protective inlet and outlet air inlet duct connecting flange is covered on the top cover flange, and the protective inlet and outlet air inlet duct connecting flange is fixed to the protective inlet and outlet flange fixing threaded hole through the inlet duct connecting flange bolts.

[0019] (III) Beneficial effects

[0020] The present invention proposes a multifunctional overpressure exhaust device for a mobile platform, including an exhaust top plate, a top cover flange, a power interface, a communication interface, an exhaust device cavity, a fixed valve plate, a movable valve plate, an exhaust device fixed flange, a cam drive motor, a valve plate drive motor, a spring, a top cover pull rod, a cam, a push rod, a valve plate drive motor gear and a movable valve plate gear plate. The valve plate in the device has automatic and manual adjustment functions, and can drive the valve plate opening through a motor according to instructions to achieve automatic adjustment of the internal overpressure of the mobile platform. When the automatic function fails, the valve plate opening can be manually adjusted to maintain a stable overpressure in the mobile platform. The device has a fast opening and closing function. When a nuclear explosion occurs, the exhaust port can be quickly and automatically closed to meet the requirements of nuclear explosion radiation protection for the orifice components of the mobile platform. As a channel connecting to the outside world, the double sealing structure has good sealing performance. When the mobile platform is connected to the protective entrance and exit, the mobile platform can provide fresh air and power supply and communication interface for the protective entrance and exit through the multifunctional overpressure exhaust device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a side view of the multifunctional overpressure exhaust device of the present invention in a closed state;

[0022] Figure 2 A bottom view of the multifunctional overpressure exhaust device of the present invention in a closed state;

[0023] Figure 3 It is a side cross-sectional view of the multifunctional overpressure exhaust device of the present invention in a closed state;

[0024] Figure 4 It is a front cross-sectional view of the multifunctional overpressure exhaust device of the present invention in a closed state;

[0025] Figure 5 This is a side view of the multifunctional overpressure exhaust device of the present invention in an open state;

[0026] Figure 6 It is a side sectional view of the multifunctional overpressure exhaust device of the present invention in an open state;

[0027] Figure 7 This is a front cross-sectional view of the multifunctional overpressure exhaust device of the present invention in an open state;

[0028] Figure 8 This is a top view of the multifunctional overpressure exhaust device of the present invention without the exhaust top plate;

[0029] Fig. 9 This is a top view of the multifunctional overpressure exhaust device of the present invention after removing the exhaust top plate;

[0030] Fig.10 A side view of the protective inlet and outlet connected to the multifunctional overpressure exhaust device of the present invention;

[0031] Fig.11 A top view of the protective inlet and outlet connections of the multifunctional overpressure exhaust device of the present invention. DETAILED DESCRIPTION

[0032] In order to make the purpose, content and advantages of the present invention more clear, the specific implementation methods of the present invention are further described in detail below in conjunction with the drawings and examples.

[0033] This embodiment provides a multifunctional overpressure exhaust device for a mobile platform, and its overall structure is as follows: Figure 1-9 As shown, it mainly includes an exhaust top plate 1, a top cover flange 2, a power interface 3, a communication interface 4, an exhaust device cavity 6, a knob 7, a fixed valve plate 8, a movable valve plate 9, an exhaust device fixed flange 12, a cam drive motor 13, a valve plate drive motor 14, a spring 15, a top cover pull rod 16, a cam 17, a push rod 18, a valve plate drive motor gear 20, a movable valve plate toothed disc 21 and a gravel screen 23.

[0034] The top of the exhaust device cavity 6 is fixedly connected with an exhaust device fixing flange 12, and the inner edge of the exhaust device fixing flange 12 extends into the interior of the exhaust device cavity 6. The outer periphery of the exhaust device fixing flange 12 is processed with a plurality of exhaust device fixing holes 10 and protective inlet and outlet flange fixing threaded holes 11 that are evenly distributed in the circumference and arranged at intervals.

[0035] A fixed valve plate 8 is fixedly connected to the bottom of the exhaust device cavity 6, and a movable valve plate 9 is installed above the fixed valve plate 8 through a rotating shaft located in the center. The movable valve plate 9 is located inside the exhaust device cavity 6. A knob 7 connected to the bottom end of the rotating shaft is installed below the fixed valve plate 8. The knob 7 is located outside the exhaust device cavity 6 and is used to manually rotate the movable valve plate 9. An opening matching the shape of the movable valve plate 9 is processed on the fixed valve plate 8, and the valve plate opening can be adjusted by rotating the movable valve plate 9.

[0036] The cam drive motor 13 is installed inside the exhaust device cavity 6, and the drive shaft of the cam drive motor 13 is connected to the cam 17. The exhaust top plate 1 is fixedly connected to the top of the top cover flange 2 by the top plate bolts 5 to form a top cover 19. The top ends of the three top cover tie rods 16 pass through the exhaust device fixed flange 12 and are fixed to the inner side of the top wall of the top cover flange 2. The three springs 15 are respectively mounted on the corresponding top cover tie rods 16. The upper and lower ends of each spring 15 are respectively in contact with the lower surface of the exhaust device fixed flange 12 and the nut installed at the bottom end of the top cover tie rod 16. The top of the push rod 18 is fixed at the center position of the inner side of the top wall of the top cover flange 2, and the bottom of the push rod 18 is in contact with the outer wall of the cam 17. When the cam 17 rotates under the drive of the cam drive motor 13, the cam 17 can lift or drop the push rod 18 through its special contour shape, and then the push rod 18 drives the top cover 19 to rise or fall as a whole. The spring 15 can provide tension for the descent of the top cover 19.

[0037] The gravel screen 23 is fixed to the exhaust device fixed flange 12 by the gravel screen fixing screws 24, and is used to provide isolation protection for the interior of the exhaust device cavity 6 when the top cover 19 rises. The upper surface of the exhaust device fixed flange 12 is provided with an annular groove corresponding to the bottom edge of the top cover flange 2, and a sealing gasket 22 is bonded in the annular groove. When the top cover 19 descends, the sealing gasket 22 is pressed to provide sealing protection for the interior of the exhaust device cavity 6.

[0038] The valve plate drive motor 14 is installed inside the exhaust device cavity 6, and a valve plate drive motor gear 20 is installed on the driving shaft of the valve plate drive motor 14. The movable valve plate toothed disc 21 is fixedly connected above the movable valve plate 9, and the valve plate drive motor gear 20 is meshed with the movable valve plate toothed disc 21. When the valve plate drive motor gear 20 rotates under the drive of the valve plate drive motor 14, the valve plate drive motor gear 20 can drive the movable valve plate 9 to rotate through the movable valve plate toothed disc 21, and the valve plate opening is electrically adjusted.

[0039] When a mobile platform needs to be connected to a protective entrance or exit, such as Fig.10 As shown, the exhaust top plate 1 is removed, the protective inlet and outlet air inlet duct connecting flange 25 is covered on the top cover flange 2, and the protective inlet and outlet air inlet duct connecting flange 25 is fixed to the protective inlet and outlet flange fixing threaded hole 11 through the inlet duct connecting flange bolts 26.

[0040] like Fig.11 As shown, the air plug 27 is fixed inside the exhaust device cavity 6 to supply power to the protective inlet and outlet. A plurality of through holes 28 are processed on the protective inlet and outlet air inlet pipe connection flange 25 to avoid the exhaust device fixing bolts, so that other functions can be transformed and applied without removing the exhaust device fixing bolts.

[0041] The power interface 3 and the communication interface 4 are both installed on the outer wall of the exhaust device cavity 6. The power interface 3 is used to connect to the power supply in the vehicle and to supply power to the cam drive motor 13, the valve plate drive motor 14 and the aviation plug 27. The communication interface 4 is used to receive external control instructions and control the operation of the cam drive motor 13 and the valve plate drive motor 14.

[0042] The working principle of the multifunctional overpressure exhaust device for the mobile platform of the present invention is:

[0043] The multifunctional overpressure exhaust device is fixed to the threaded hole of the mobile platform by passing the exhaust device fixing screw through the exhaust device fixing hole 10 on the exhaust device fixing flange 12. The part above the exhaust device fixing flange 12 of the multifunctional overpressure exhaust device is exposed on the outside of the mobile platform, and the part below is located inside the mobile platform.

[0044] When the multifunctional overpressure exhaust device is turned on, it receives superior instructions through the communication interface 4, transmits information to the cam drive motor 13 and the valve plate drive motor 14, and the drive shaft of the cam drive motor 13 rotates counterclockwise, driving the cam 17 to rotate, and the cam 17 pushes the push rod 18 to the highest position, and then the top cover 19 of the multifunctional overpressure exhaust device is opened; at the same time, the drive shaft of the valve plate drive motor 14 drives the valve plate drive motor gear 20 at the end to rotate, and the valve plate drive motor gear 20 drives the movable valve plate gear 21 to rotate, and the movable valve plate 9 overlaps with the fixed valve plate 8, and the bottom valve plate is opened. According to the internal pressure requirement of the mobile platform, the overlapping area of ​​the movable valve plate 9 and the fixed valve plate 8 can be adjusted, and the valve plate opening can be adjusted to achieve the internal air pressure regulation of the mobile platform. When exhausting, the gravel screen 23 can block the external gravel outside to prevent the external gravel from splashing into the interior of the multifunctional overpressure exhaust device and damaging the equipment. When the movable valve plate 9 is stuck, the bottom valve plate can be opened by manually rotating the knob 7 for exhaust.

[0045] When the multifunctional overpressure exhaust device is closed, it receives superior instructions through the communication interface 4 and transmits information to the cam drive motor 13 and the valve plate drive motor 14. The drive shaft of the cam drive motor 13 rotates clockwise, driving the cam 17 to rotate. The cam 17 lowers the push rod 18 to the lowest position. At the same time, the compressed spring 15 stretches to the free state, driving the top cover pull rod 16, accelerating the top cover 19 to fall, meeting the requirement of quickly closing the orifice.

[0046] If the mobile platform needs to connect to the protective inlet and outlet, open the exhaust top plate 1, fix the protective inlet and outlet air inlet pipe connection flange 25 on the protective inlet and outlet flange fixing threaded hole 11, and connect the protective inlet and outlet cable aviation plug to the aviation plug 27 through the air inlet duct to provide power and communication interaction for the protective inlet and outlet. Fix the protective inlet and outlet air inlet duct to the protective inlet and outlet air inlet pipe connection flange 25 through a clamp. At this time, the movable valve plate 9 completely overlaps the fixed valve plate 8, the valve plate opening is the largest, and the full air volume of the mobile platform supplies fresh air to the protective inlet and outlet, meeting the fresh air demand of the protective inlet and outlet.

[0047] The multifunctional overpressure exhaust device of the present invention can automatically adjust the valve plate opening by receiving instructions through the communication interface, and cooperate with the fan to adjust the internal overpressure value of the mobile platform in real time and quickly. When the automatic adjustment valve plate function fails, manual adjustment can be selected. At the same time, when a nuclear explosion occurs, the multifunctional overpressure exhaust device can receive instructions through the communication interface, drive the motor shaft to rotate, quickly lower the top cover, close the orifice, and meet the nuclear explosion radiation protection requirements of the orifice. The top cover of the multifunctional overpressure exhaust device is detachable. If the mobile platform is adapted to install a protective entrance and exit, remove the top cover and connect it to the protective entrance and exit air inlet duct through a flange to provide fresh air and power for the protective entrance and exit. The multifunctional overpressure exhaust device is provided with sealing structures at both the top cover and the valve plate. The double seal makes it have good sealing performance and has almost no effect on the air leakage of the mobile platform.

[0048] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A multifunctional overpressure exhaust device for a mobile platform, characterized in that: The multifunctional overpressure exhaust device for the mobile platform includes an exhaust top plate, a top cover flange, a power interface, a communication interface, an exhaust device cavity, a fixed valve plate, a movable valve plate, an exhaust device fixed flange, a cam drive motor, a valve plate drive motor, a spring, a top cover pull rod, a cam, a push rod, a valve plate drive motor gear and a movable valve plate gear disc; wherein, The top of the exhaust device cavity is fixedly connected with an exhaust device fixing flange, and the inner edge of the exhaust device fixing flange extends into the interior of the exhaust device cavity; the outer periphery of the exhaust device fixing flange is processed with a plurality of exhaust device fixing holes and protective inlet and outlet flange fixing threaded holes evenly distributed in the circumferential direction; A fixed valve plate is fixedly connected to the bottom of the exhaust device cavity, and a movable valve plate is installed above the fixed valve plate through a rotating shaft located in the center. The movable valve plate is located inside the exhaust device cavity, and an opening matching the shape of the movable valve plate is processed on the fixed valve plate. By rotating the movable valve plate, the valve plate opening can be adjusted; The cam drive motor is installed inside the exhaust device cavity, and the driving shaft of the cam drive motor is connected to the cam; the exhaust top plate is fixedly connected to the top of the top cover flange by top plate bolts to form a top cover; the top ends of multiple top cover tie rods pass through the exhaust device fixing flange and are fixed to the inner side of the top wall of the top cover flange, and multiple springs are respectively mounted on the corresponding top cover tie rods, and the upper and lower ends of each spring are respectively in contact with the lower surface of the exhaust device fixing flange and the nut installed at the bottom end of the top cover tie rod; the top of the push rod is fixed to the center position of the inner side of the top wall of the top cover flange, and the bottom of the push rod is in contact with the outer wall of the cam. When the cam rotates under the drive of the cam drive motor, the cam can lift or drop the push rod through the contour shape, and then the push rod drives the top cover to rise or fall as a whole, and the spring can provide pulling force for the descent of the top cover; The valve plate drive motor is installed inside the exhaust device cavity, the valve plate drive motor gear is installed on the driving shaft of the valve plate drive motor, the movable valve plate toothed disc is fixedly connected above the movable valve plate, and the valve plate drive motor gear is meshed with the movable valve plate toothed disc; when the valve plate drive motor gear rotates under the drive of the valve plate drive motor, the valve plate drive motor gear can drive the movable valve plate to rotate through the movable valve plate toothed disc, and the valve plate opening is electrically adjusted; The aviation plug is fixed inside the exhaust device cavity and is used to supply power to the protective entrance and exit; the power interface and communication interface are installed on the outer wall of the exhaust device cavity, the power interface is used to connect to the power supply inside the vehicle and supply power to the cam drive motor, valve plate drive motor and aviation plug; the communication interface is used to receive external control instructions and control the operation of the cam drive motor and valve plate drive motor.

2. The multifunctional overpressure exhaust device for a mobile platform according to claim 1, characterized in that: The exhaust device fixing holes and the protective inlet and outlet flange fixing threaded holes are arranged at intervals.

3. The multifunctional overpressure exhaust device for a mobile platform according to claim 1, characterized in that: A knob connected to the bottom end of the rotating shaft is installed below the fixed valve plate. The knob is located outside the exhaust device cavity and is used to manually rotate the movable valve plate.

4. The multifunctional overpressure exhaust device for a mobile platform according to claim 1, characterized in that: There are three top cover pull rods.

5. The multifunctional overpressure exhaust device for a mobile platform according to claim 1, characterized in that: The gravel screen is fixed to the exhaust device fixing flange by the gravel screen fixing screws, and is used to provide isolation protection for the interior of the exhaust device cavity when the top cover is raised.

6. The multifunctional overpressure exhaust device for a mobile platform according to claim 1, characterized in that: The upper surface of the exhaust device fixed flange is provided with an annular groove corresponding to the bottom edge of the top cover flange. A sealing gasket is bonded in the annular groove. When the top cover is lowered, the sealing gasket is compressed to provide sealing protection for the interior of the exhaust device cavity.

7. The multifunctional overpressure exhaust device for a mobile platform according to claim 1, characterized in that: A plurality of through holes are machined on the protective inlet and outlet air inlet duct connection flanges to avoid the exhaust device fixing bolts.

8. The multifunctional overpressure exhaust device for a mobile platform according to claim 1, characterized in that: When the mobile platform needs to connect the protective inlet and outlet, remove the exhaust top plate, cover the protective inlet and outlet air inlet duct connecting flange on the top cover flange, and fix the protective inlet and outlet air inlet duct connecting flange to the protective inlet and outlet flange fixing threaded hole through the inlet duct connecting flange bolts.

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