Civil air defense emergency ventilation valve

Abstract

The utility model discloses a civil air defense emergency ventilation valve, which relates to the technical field of civil air defense emergency equipment, and comprises a positioning ventilation valve pipe and a bottom connecting flange, the bottom connecting flange is installed and connected on the peripheral side of the lower end of the positioning ventilation valve pipe, and the right side of the upper end of the positioning ventilation valve pipe is provided with a right side air pipe; a sealing positioning cover is arranged at the upper end of the positioning ventilation valve pipe, and a positioning ventilation opening and closing mechanism is arranged on the position, located on the positioning ventilation valve pipe, of the inner side of the sealing positioning cover. The blocking blades of the positioning ventilation opening and closing mechanism can unfold the area of the ventilation rotating cavity during rotation so as to conduct ventilation, when the ventilation rotating cavity is closed by the blocking blades, ventilation is closed, the blocking blades are located in the positioning sleeve plate during overall rotation, and therefore the blocking blades can be effectively protected, and the service life of the blocking blades is prolonged. And the blocking blades are prevented from being blown to deform by wind power, and the blocking blades are more flexible in rotation through rolling of the auxiliary rolling balls in the rotation process.

Description

TECHNICAL FIELD

[0001] The utility model relates to a civil air defence emergency equipment technical field especially relates to a civil air defence emergency ventilation valve. BACKGROUND

[0002] Civil air defence emergency equipment refers to the protective equipment for coping with nuclear, chemical, biological and other threats, guaranteeing personnel safety and life safety, and civil air defence emergency equipment also includes observer equipment, reconnaissance equipment, protective equipment, decontamination equipment and preventive first-aid equipment, etc., and people need to use civil air defence emergency ventilation valve in ventilation emergency.

[0003] The existing Chinese patent CN103883793B discloses a high-temperature ventilation valve on February 24, 2016, which comprises a cylindrical valve body, a flange, a retainer, a blade, a valve shaft, a support, a welded support, a support reinforcing plate, a high-temperature air valve heat insulation transmission mechanism, an actuator fixing plate and a valve shaft sealing mechanism.

[0004] However, the blade of the above-mentioned high-temperature ventilation valve is turned to open or close the ventilation, so that the blade is prone to deformation when the wind force is large, which makes the closing and shielding not very comprehensive in the later stage. UTILITY MODEL CONTENTS

[0005] The utility model discloses a civil air defence emergency ventilation valve, the blocking blade of positioning ventilation opening and closing mechanism can unfold the area of ventilation rotating cavity in rotation, so that ventilation can be carried out, and when the blocking blade closes the ventilation rotating cavity, ventilation is closed, the blocking blade is located in the positioning sleeve plate in the whole rotation, so that the blocking blade can be effectively protected, and the blocking blade is prevented from being blown and deformed by wind force, and the blocking blade is more flexible in rotation through the rolling of the auxiliary rolling ball.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] A civil air defence emergency ventilation valve, comprising a positioning ventilation valve pipe and a bottom connecting flange, the bottom connecting flange is installed and connected on the lower end circumferential side of the positioning ventilation valve pipe, the right side of the upper end of the positioning ventilation valve pipe is provided with a right side air pipe, the upper end of the positioning ventilation valve pipe is provided with a sealing positioning cover, the inner side of the sealing positioning cover is provided with a positioning ventilation opening and closing mechanism on the positioning ventilation valve pipe;

[0008] The positioning ventilation opening and closing mechanism comprises an upper rotary disc, an assembling screw, a rotary handle, a positioning rotary rod and a blocking blade, the upper end of the upper rotary disc is provided with the rotary handle, the middle of the lower end of the upper rotary disc is provided with the positioning rotary rod, the upper rotary disc and the positioning rotary rod are fixedly connected through the assembling screw, the lower end of the positioning rotary rod is provided with the blocking blade, the blocking blade is sleeved on the positioning ventilation valve pipe, and the positioning rotary rod is rotatably installed on the sealing positioning cover.

[0009] Through the above technical scheme, the positioning ventilation valve pipe can be correspondingly installed on the air pipe of the civil air defense through the bottom connecting flange at the lower end, the right air pipe is fixedly connected through the upper end right side of the positioning ventilation valve pipe, and the internal gas of the positioning ventilation valve pipe can be effectively delivered and ventilated through the right air pipe; the positioning ventilation opening and closing mechanism is positioned through the sealing positioning cover, so that the positioning ventilation opening and closing mechanism can be stably rotated in the positioning ventilation valve pipe; the blocking blade of the positioning ventilation opening and closing mechanism can expand the area of the ventilation rotating cavity during rotation, so that ventilation can be performed; when the blocking blade closes the ventilation rotating cavity, ventilation is closed; and the blocking blade is located in the positioning sleeve plate during overall rotation, so that the blocking blade can be effectively protected and deformation of the blocking blade caused by wind force can be avoided; the blocking blade rolls through the auxiliary rolling ball during rotation, so that the blocking blade is more flexible during rotation.

[0010] The sealing positioning cover further comprises a limiting sleeve, a bottom cover, a connecting screw and a mounting screw, the lower end of the limiting sleeve is provided with the bottom cover, the limiting sleeve and the bottom cover are fixedly connected through the connecting screw, the circumferential inner side of the bottom cover is provided with the mounting screw, the bottom cover is mounted and connected on the positioning ventilation valve pipe through the mounting screw, and the limiting sleeve is mounted and connected on the circumferential side of the positioning rotary rod.

[0011] Through the sealing positioning cover structure, the sealing positioning can be effectively realized.

[0012] The positioning ventilation valve pipe further comprises a valve pipe shell, a positioning sleeve plate, a ventilation rotating cavity and an auxiliary rolling ball, the inner side of the lower end of the valve pipe shell is provided with the positioning sleeve plate, the inner side of the positioning sleeve plate is provided with the ventilation rotating cavity, the inner side of the ventilation rotating cavity is provided with the auxiliary rolling ball on the inner walls of the two sides of the positioning sleeve plate, the lower end of the valve pipe shell is fixedly connected on the bottom connecting flange, and the upper end of the valve pipe shell is connected on the sealing positioning cover.

[0013] Through the positioning ventilation valve pipe structure, the rolling positioning can be realized.

[0014] The auxiliary rolling ball is in rolling contact with the blocking blade, and the blocking blade is rotatably installed on the inner side of the ventilation rotating cavity.

[0015] Through the above technical scheme: through the auxiliary rolling ball structure, the blocking blade is more flexible in rotation.

[0016] The utility model further sets up, the connecting place of positioning ventilation valve pipe and sealing positioning cover is in alignment, and the connecting place is provided with sealing rubber pad.

[0017] Through the above technical scheme: through the positioning ventilation valve pipe structure, the sealing positioning cover can be installed correspondingly.

[0018] The utility model further sets up, the blocking blade passes through the rotation of positioning rotation rod and blocks the through area of positioning sleeve plate.

[0019] Through the above technical scheme: through the rotation of positioning rotation rod, the through area of positioning sleeve plate can be blocked by the blocking blade.

[0020] The utility model further sets up, positioning ventilation valve pipe and right side air pipe are connected through welding fixedly, and the connecting place is through.

[0021] Through the above technical scheme: through the positioning ventilation valve pipe structure, the right side air pipe can be installed through.

[0022] The utility model discloses the beneficial effect is:

[0023] 1, through being provided with positioning ventilation valve pipe structure, the positioning ventilation opening and closing mechanism can be positioned rotation, and effectively avoid the deformation, and the lower end inboard of valve pipe shell of positioning ventilation valve pipe is fixedly connected with positioning sleeve plate, and the inboard of positioning sleeve plate is provided with ventilation rotation cavity, so that the blocking blade can be sleeved and rotated, and the blocking blade is effectively protected by the wrapping of positioning sleeve plate, avoids the deformation, and the inboard of ventilation rotation cavity is located on the inner wall both sides of positioning sleeve plate and is rotationally installed with auxiliary rolling ball, and the blocking blade is contacted with auxiliary rolling ball when rotating, and the blocking blade is more flexible in rotation, and the lower end of valve pipe shell is fixedly connected on bottom connecting flange, so that valve pipe shell can be installed and connected with outside through bottom connecting flange, and the upper end of valve pipe shell is connected on sealing positioning cover, and sealing positioning cover can effectively close the upper end opening of valve pipe shell.

[0024] 2、By being provided with the positioning ventilation opening and closing mechanism structure, effective positioning rotation can be realized, a rotating handle is fixedly connected to the upper end of the upper rotating disc of the positioning ventilation opening and closing mechanism, so that personnel can hold the rotating handle to rotate, an positioning rotating rod is installed in the lower end of the upper rotating disc, the upper rotating disc and the positioning rotating rod are fixedly connected through assembly screws, so that the positioning rotating rod can be rotated when the upper rotating disc is held and rotated through the rotating handle, a blocking blade is fixedly connected to the lower end of the positioning rotating rod, the positioning rotating rod can drive the blocking blade to rotate in rotation, the blocking blade is sleeved on the positioning ventilation valve pipe, so that the blocking blade can be positioned and rotated in the positioning ventilation valve pipe, the blocking blade is limited by the positioning ventilation valve pipe, so that the overall shape change can be effectively ensured, and the positioning rotating rod is rotatably installed on the sealing positioning cover, so that the positioning rotating rod can be positioned and rotated through the sealing positioning cover, and rotation is more stable. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 A three-dimensional structure schematic view of the civil air defense emergency ventilation valve is provided in the utility model;

[0026] Figure 2 A positioning ventilation opening and closing mechanism structure schematic view of the civil air defense emergency ventilation valve is provided in the utility model;

[0027] Figure 3 A positioning ventilation opening and closing mechanism and positioning ventilation valve pipe combined structure schematic view of the civil air defense emergency ventilation valve is provided in the utility model;

[0028] Figure 4 An internal part structure schematic view of the positioning ventilation valve pipe of the civil air defense emergency ventilation valve is provided in the utility model;

[0029] Figure 5 A sealing positioning cover structure schematic view of the civil air defense emergency ventilation valve is provided in the utility model.

[0030] In the drawing: 1, positioning ventilation opening and closing mechanism; 11, upper rotating disc; 12, assembly screw; 13, rotating handle; 14, positioning rotating rod; 15, blocking blade; 2, right side air pipe; 3, sealing positioning cover; 31, limiting sleeve; 32, bottom cover; 33, connecting screw; 34, mounting screw; 4, positioning ventilation valve pipe; 41, valve pipe shell; 42, positioning sleeve plate; 43, ventilation rotating cavity; 44, auxiliary rolling ball; 5, bottom connecting flange. DETAILED DESCRIPTION

[0031] The technical scheme of the patent will be further described in detail in combination with specific embodiments.

[0032] Embodiments of the present patent are described below in detail with reference to examples thereof illustrated in the accompanying drawings, in which like or similar elements or components are denoted throughout by the same or similar reference numerals, and the embodiments described below are examples only for explaining the present patent and are not to be understood as limiting the present patent.

[0033] In the description of the present patent, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present patent.

[0034] In the description of the present patent, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "arranging" should be understood broadly, for example, it can be fixedly connected, arranged, or detachably connected, arranged, or integrally connected, arranged. For those skilled in the art, the specific meaning of the above terms in the present patent can be understood according to the specific circumstances.

[0035] Referring to Figures 1-5 A civil air defense emergency ventilation valve includes a positioning ventilation valve pipe 4 and a bottom connecting flange 5 mounted and connected on the lower end of the positioning ventilation valve pipe 4, the positioning ventilation valve pipe 4 can be installed on the air pipe of the civil air defense through the lower end bottom connecting flange 5, the right side of the upper end of the positioning ventilation valve pipe 4 is penetrated and fixedly connected with a right side air pipe 2, the gas inside the positioning ventilation valve pipe 4 can be effectively delivered and ventilated through the right side air pipe 2, a sealing positioning cover 3 is installed on the upper end of the positioning ventilation valve pipe 4, a positioning ventilation opening and closing mechanism 1 is installed on the inside of the sealing positioning cover 3 on the positioning ventilation valve pipe 4, the positioning ventilation opening and closing mechanism 1 is positioned through the sealing positioning cover 3, so that it can be stably rotated in the positioning ventilation valve pipe 4;

[0036] The positioning ventilation opening and closing mechanism 1 comprises an upper rotary disc 11, an assembling screw 12, a rotary handle 13, a positioning rotary rod 14 and a blocking blade 15, the upper end of the upper rotary disc 11 is fixedly connected with the rotary handle 13, so that a person can hold and rotate the rotary handle 13, the middle of the lower end of the upper rotary disc 11 is provided with the positioning rotary rod 14, and the upper rotary disc 11 and the positioning rotary rod 14 are fixedly connected through the assembling screw 12, so that the upper rotary disc 11 can drive the positioning rotary rod 14 to rotate when the upper rotary disc 11 is held and rotated through the rotary handle 13, the lower end of the positioning rotary rod 14 is fixedly connected with the blocking blade 15, and the positioning rotary rod 14 can drive the blocking blade 15 to rotate in rotation, the blocking blade 15 is sleeved on the positioning ventilation valve pipe 4, so that the blocking blade 15 can be positioned and rotated in the positioning ventilation valve pipe 4, the blocking blade 15 is limited by the positioning ventilation valve pipe 4, so that the overall shape change is effectively ensured, and the positioning rotary rod 14 is rotatably installed on the sealing positioning cover 3, so that the positioning rotary rod 14 can be positioned and rotated through the sealing positioning cover 3, and the rotation is more stable;

[0037] The blocking blade 15 rotates and blocks the through region of the positioning sleeve plate 42 through the positioning rotary rod 14, so that the ventilation region can be effectively closed.

[0038] Specifically, the sealing positioning cover 3 comprises a limiting sleeve 31, a bottom cover 32, a connecting screw 33 and an installation screw 34, the lower end of the limiting sleeve 31 is provided with the bottom cover 32, the limiting sleeve 31 and the bottom cover 32 are fixedly connected through the connecting screw 33, so that the limiting sleeve 31 and the bottom cover 32 can be correspondingly installed and connected, the circumferential inner side of the bottom cover 32 is provided with the installation screw 34, and the bottom cover 32 is installed and connected on the positioning ventilation valve pipe 4 through the installation screw 34, so that the installation and connection can be effectively corresponded, and the limiting sleeve 31 is installed and connected on the circumferential side of the positioning rotary rod 14, so that the positioning rotary rod 14 can be positioned and rotated in the limiting sleeve 31.

[0039] Specifically, the positioning ventilation valve pipe 4 comprises a valve pipe shell 41, a positioning sleeve plate 42, a ventilation rotary cavity 43 and an auxiliary rolling ball 44, the inner side of the lower end of the valve pipe shell 41 is fixedly connected with the positioning sleeve plate 42, the inner side of the positioning sleeve plate 42 is provided with the ventilation rotary cavity 43, so that the blocking blade 15 can be sleeved and rotated, the blocking blade 15 is effectively protected from deformation due to the wrapping of the positioning sleeve plate 42, the inner side of the ventilation rotary cavity 43 is rotatably installed with the auxiliary rolling ball 44 on the inner walls of the positioning sleeve plate 42, the blocking blade 15 is in contact with the auxiliary rolling ball 44 when rotating, and the blocking blade 15 is more flexible in rotation, the lower end of the valve pipe shell 41 is fixedly connected with the bottom connecting flange 5, so that the valve pipe shell 41 can be correspondingly installed and connected with the outside through the bottom connecting flange 5, the upper end of the valve pipe shell 41 is connected with the sealing positioning cover 3, and the sealing positioning cover 3 can effectively close the upper end opening of the valve pipe shell 41;

[0040] The auxiliary rolling ball 44 is in rolling contact with the blocking blade 15, so that the blocking blade 15 is more flexible in rotation, and the blocking blade 15 is rotatably arranged in the ventilation rotating cavity 43, and the blocking blade 15 can be positioned and rotated in the ventilation rotating cavity 43.

[0041] Specifically, the connection between the positioning ventilation valve pipe 4 and the sealing positioning cover 3 is aligned, so that no obstruction occurs during use, and a sealing rubber gasket is arranged at the connection, so that the connection is more tightly fixed during fixing.

[0042] Specifically, the positioning ventilation valve pipe 4 and the right air pipe 2 are fixedly connected by welding, so that they can be effectively installed and fixed, and the connection is through, so that ventilation is facilitated.

[0043] Working principle: in use, the positioning ventilation valve pipe 4 can be correspondingly installed on the air pipe of the civil air defense through the lower end bottom connecting flange 5, the upper end right side of the positioning ventilation valve pipe 4 is fixedly connected with the right air pipe 2, and the gas in the positioning ventilation valve pipe 4 can be effectively delivered and ventilated through the right air pipe 2, the positioning ventilation opening and closing mechanism 1 is rotated, the positioning ventilation opening and closing mechanism 1 is positioned through the sealing positioning cover 3, so that it can be stably rotated in the positioning ventilation valve pipe 4, the blocking blade 15 of the positioning ventilation opening and closing mechanism 1 can expand the area of the ventilation rotating cavity 43 in rotation, so that ventilation can be carried out, and when the blocking blade 15 closes the ventilation rotating cavity 43, ventilation is closed, the blocking blade 15 is located in the positioning sleeve plate 42 in the whole rotation, so that the blocking blade 15 can be effectively protected, and deformation of the blocking blade 15 caused by wind force is avoided, and the blocking blade 15 is more flexible in rotation through the rolling of the auxiliary rolling ball 44.

[0044] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A civil air defense emergency ventilation valve comprising a positioning ventilation valve pipe (4) and a bottom connecting flange (5) which is mounted and connected on the lower end circumferential side of the positioning ventilation valve pipe (4), characterized in that, The right side air pipe (2) is arranged at the right side of the upper end of the positioning ventilation valve pipe (4), and the sealing positioning cover (3) is arranged at the upper end of the positioning ventilation valve pipe (4); the inner side of the sealing positioning cover (3) is provided with the positioning ventilation opening and closing mechanism (1) on the positioning ventilation valve pipe (4). The positioning ventilation opening and closing mechanism (1) comprises an upper rotary disc (11), an assembling screw (12), a rotary handle (13), a positioning rotary rod (14) and a blocking blade (15); the upper rotary disc (11) is provided with the rotary handle (13) at the upper end thereof; the positioning rotary rod (14) is arranged at the middle of the lower end of the upper rotary disc (11); the upper rotary disc (11) and the positioning rotary rod (14) are fixedly connected through the assembling screw (12); the positioning rotary rod (14) is provided with the blocking blade (15) at the lower end thereof; the blocking blade (15) is sleeved on the positioning ventilation valve pipe (4); and the positioning rotary rod (14) is rotatably arranged on the sealing positioning cover (3). The positioning ventilation valve pipe (4) comprises a valve pipe shell (41), a positioning sleeve plate (42), a ventilation rotary cavity (43) and auxiliary rolling ball beads (44); the positioning sleeve plate (42) is arranged at the inner side of the lower end of the valve pipe shell (41); the ventilation rotary cavity (43) is arranged at the inner side of the positioning sleeve plate (42); the auxiliary rolling ball beads (44) are arranged at the inner walls of the positioning sleeve plate (42) on both sides; the valve pipe shell (41) is fixedly connected to the bottom connecting flange (5) at the lower end thereof; and the valve pipe shell (41) is connected to the sealing positioning cover (3) at the upper end thereof; the auxiliary rolling ball beads (44) are in rolling contact with the blocking blade (15); and the blocking blade (15) is rotatably arranged at the inner side of the ventilation rotary cavity (43).

2. The emergency ventilation valve according to claim 1, characterized in that, The sealing positioning cover (3) comprises a limiting sleeve (31), a bottom cover (32), a connecting screw (33) and a mounting screw (34); the bottom cover (32) is arranged at the lower end of the limiting sleeve (31); the limiting sleeve (31) and the bottom cover (32) are fixedly connected through the connecting screw (33); the mounting screw (34) is arranged at the circumferential inner side of the bottom cover (32); the bottom cover (32) is mounted and connected to the positioning ventilation valve pipe (4) through the mounting screw (34); and the limiting sleeve (31) is mounted and connected to the circumferential side of the positioning rotary rod (14).

3. The emergency ventilation valve according to claim 1, characterized in that, The connecting portions of the positioning ventilation valve pipe (4) and the sealing positioning cover (3) are aligned, and the connecting portions are provided with sealing rubber pads.

4. The emergency ventilation valve according to claim 3, characterized in that, The blocking blade (15) is rotatably blocked to the through region of the positioning sleeve plate (42) through the positioning rotary rod (14).

5. The emergency ventilation valve according to claim 1, wherein, The positioning ventilation valve pipe (4) and the right side air pipe (2) are fixedly connected through welding, and the connecting portions are through.

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