Overpressure exhaust device

Abstract

The invention provides an overpressure exhaust device which comprises a hand wheel, a lead screw stepping motor, a valve body, a sealing ring, a valve element, a position switch, a supporting plate, a circular ring nut and an electric connector. Wherein the valve body, the circular ring nut and the electric connector form a valve body assembly, and the valve element, the supporting plate, the lead screw stepping motor and the position switch form a valve element assembly. Through the threaded fit of the lead screw and the circular ring nut fixed on the valve body, the rotating motion of the lead screw is changed into the linear motion of the valve element assembly in the cavity of the valve body assembly, and the adjustment of the overpressure value in the sealed cabin is realized by adjusting the opening degree of the exhaust windows in the valve element assembly and the valve body assembly.

Description

technical field

[0001] The invention belongs to the technical field of armored vehicle protection, and in particular relates to an overpressure exhaust device applied to an armored vehicle equipped with an overpressure or hybrid collective protection system. Background technique

[0002] Domestic armored vehicles now use a general exhaust device with a relatively simple structure, which is the protective equipment for the poisonous ventilation system of the protective project. The general exhaust device is not well sealed to the outside, which may easily cause gas leakage or enter the inside of the airtight cabin, causing the airtight cabin to be polluted by the external environment. The overpressure exhaust device is mainly used to control and adjust the overpressure value and air flow inside the airtight cabin. When the pressure in the airtight cabin exceeds the standard or the air supply flow is insufficient, by adjusting the overpressure exhaust device, the excess air i...

Examples

Embodiment Construction

[0026] In order to make the purpose, content and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0027] This embodiment proposes an overpressure exhaust device, the structure of which is as follows: figure 1 with 2 As shown, it includes a hand wheel 1, a screw stepper motor 2, a valve body 3, a sealing ring 4, a valve core 5, a position switch 6, a support plate 7, a ring nut 8 and an electrical connector 9. Among them, such as Figure 3-6 As shown, the valve body 3 , the ring nut 8 and the electrical connector 9 form a valve body assembly 10 . The spool 5 , the support plate 7 , the screw stepping motor 2 and the position switch 6 form a spool assembly 11 .

[0028] The valve body 3 adopts an asymmetric structure as a whole, and the ring wall of the valve body is processed with six identical exhaust windows. c...

technical field

[0001] The invention belongs to the technical field of armored vehicle protection, and in particular relates to an overpressure exhaust device applied to an armored vehicle equipped with an overpressure or hybrid collective protection system. Background technique

[0002] Domestic armored vehicles now use a general exhaust device with a relatively simple structure, which is the protective equipment for the poisonous ventilation system of the protective project. The general exhaust device is not well sealed to the outside, which may easily cause gas leakage or enter the inside of the airtight cabin, causing the airtight cabin to be polluted by the external environment. The overpressure exhaust device is mainly used to control and adjust the overpressure value and air flow inside the airtight cabin. When the pressure in the airtight cabin exceeds the standard or the air supply flow is insufficient, by adjusting the overpressure exhaust device, the excess air i...

Examples

Embodiment Construction

[0026] In order to make the purpose, content and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0027] This embodiment proposes an overpressure exhaust device, the structure of which is as follows: figure 1 with 2 As shown, it includes a hand wheel 1, a screw stepper motor 2, a valve body 3, a sealing ring 4, a valve core 5, a position switch 6, a support plate 7, a ring nut 8 and an electrical connector 9. Among them, such as Figure 3-6 As shown, the valve body 3 , the ring nut 8 and the electrical connector 9 form a valve body assembly 10 . The spool 5 , the support plate 7 , the screw stepping motor 2 and the position switch 6 form a spool assembly 11 .

[0028] The valve body 3 adopts an asymmetric structure as a whole, and the ring wall of the valve body is processed with six identical exhaust windows. c...

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