Civil air defense filtering absorber with ventilation conversion structure

Abstract

The utility model discloses a civil air defense filtering absorber with a ventilation conversion structure, which comprises a filtering main bin and an air inlet pipe arranged on one side of the filtering main bin, a conversion assembly is arranged outside the filtering main bin, the conversion assembly comprises an auxiliary bin, an arch frame is arranged outside the auxiliary bin, the middle part of the arch frame is in threaded connection with a stud, and the stud is in threaded connection with the filtering main bin. The bottom end of the stud is rotationally connected with a movable plate, the bottom of the movable plate is fixedly connected with three bent pressing plates, three curved plates are embedded in the outer sides of the bent pressing plates, and the two ends of each curved plate are provided with an L-shaped supporting block and a movable inserting strip; wherein the inner side of the curved plate is fixedly connected with a filtering piece, the two sides of the filtering piece are fixedly connected with sealing rings, and the bottom of the bent pressing plate is fixedly connected with an extrusion column; the use of a plurality of screws is avoided, and quick disassembly is realized; and the sealing can be ensured under the condition of reducing the use of bolts by matching with the extrusion installation of the sealing ring.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of civil air defense field, concretely to a civil air defense filter absorber with ventilation conversion structure. BACKGROUND

[0002] The filter absorber is a filter equipment arranged in the air intake system of the civil air defense project, which can reduce the toxic concentration of the outdoor toxic air to below the allowable concentration by the filtering and absorbing effect of the filter paper and activated carbon and other materials in the filter absorber, so as to provide fresh air for indoor personnel in the case of outdoor poisoning.

[0003] The utility model discloses a kind of civil air defense filter absorbers with ventilation conversion function, including civil air defense filter absorber and civil air defense filter absorber two end air inlet and air outlet, air inlet and air outlet are communicated with inlet duct and outlet duct, three-way valve is installed on inlet duct, three-way valve includes with the first air vent of inlet duct connection, with the second air vent of civil air defense filter absorber air inlet connection and with the third air vent of guide tube one end communication, the other end of guide tube extends towards civil air defense filter absorber air outlet direction and is fixedly connected on outlet duct, when ventilation conversion is needed, civil air defense filter absorber does not need to be moved, when civil air defense filter absorber is heavier, ventilation conversion purpose can be achieved by operating three-way valve, so that ventilation conversion can be quickly realized in emergency, improve the initiative in civil air defense, but the patent still has the following problems in actual use process:

[0004] When the filter part in the filter tank in the above device needs to be cleaned, the tank cover needs to be removed, to ensure the sealing, the existing tank cover is usually fixed by using multiple bolts, so as to extrude and provide sealing, but the conventional multiple bolt reinforcement leads to that the tank cover is not easy to disassemble, so that the cleaning of the dust filter screen in the filter tank is inconvenient.

[0005] A civil air defense filter absorber with ventilation conversion structure is proposed to solve the problems raised in the above background. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a civil air defense filter absorber with ventilation conversion structure to solve the problem that the filter part in the filter tank in the above device needs to be cleaned, the tank cover needs to be removed, to ensure the sealing, the existing tank cover is usually fixed by using multiple bolts, so as to extrude and provide sealing, but the conventional multiple bolt reinforcement leads to that the tank cover is not easy to disassemble, so that the cleaning of the dust filter screen in the filter tank is inconvenient.

[0007] In order to achieve the above object, the utility model provides the following technical scheme: A civil defense filter absorber with ventilation conversion structure, including filter main storehouse, and the air inlet pipe of installation in one side of filter main storehouse, the other side fixedly connected of filter main storehouse has the air outlet valve pipe,

[0008] The outer side of the filter main storehouse is provided with a conversion assembly, the conversion assembly comprises a sub-storehouse, one end of the sub-storehouse is fixedly connected with a gas return valve pipe, the other end of the sub-storehouse is fixedly connected with a gas exchange pipe, the outer side of the sub-storehouse is provided with an arch, the middle part of the arch is threadedly connected with a stud, the bottom end of the stud is rotatably connected with a movable plate, the bottom of the movable plate is fixedly connected with three bent pressing plates, the outer side of the bent pressing plate is embedded with three curved surface plates, and the two ends of the curved surface plate are provided with L-shaped supporting blocks and movable inserts.

[0009] The inner side of the curved surface plate is fixedly connected with a filter element, the two sides of the filter element are fixedly connected with sealing rings, the curved surface plate can be attached to the surface of the movable insert, the bottom of the bent pressing plate is fixedly connected with an extrusion column, and the two ends of the movable plate are symmetrically fixedly connected with slide columns.

[0010] Preferably, the two ends of the arch are fixedly connected with connecting rings, and the two connecting rings are rotatably sleeved outside the gas exchange pipe and the gas return valve pipe respectively, the inner side of the arch is symmetrically provided with vertical grooves, and the vertical grooves are in sliding connection with the slide columns.

[0011] Preferably, the movable insert is in sliding connection with the curved surface plate, the L-shaped supporting block is fixed outside the sub-storehouse, the vertical surface of the L-shaped supporting block is provided with a through hole, and the movable insert is inserted into the through hole.

[0012] Preferably, the bottom of the bent pressing plate is fixedly connected with an extrusion column, the extrusion column is attached to the outer side of the curved surface plate, and the filter element can be attached to the inner wall of the sub-storehouse.

[0013] Preferably, the turning assembly comprises a control storehouse, two blocking blocks are vertically and slidably connected inside the control storehouse, the blocking blocks are attached to the inner wall of the control storehouse, and the two blocking blocks are fixedly connected on the side close to each other.

[0014] Preferably, the two gas-tight rings are fixedly connected with a connecting rod, the top end of the control storehouse is threadedly connected with a threaded rod, and the bottom end of the threaded rod is rotatably connected with the top of one blocking block.

[0015] Preferably, the two blocking blocks are provided with a gas injection pipe, the gas injection pipe is fixedly connected to the outside of the control storehouse, the top of the control storehouse is fixedly connected with the gas exchange pipe, and the bottom of the control storehouse is fixedly connected with the air inlet pipe.

[0016] Compared with the prior art, the beneficial effects of the civil defense filter absorber with the ventilation conversion structure are that the curved panel is taken out from the auxiliary warehouse together with the filter piece through the mobile plug, the use of multiple screws is avoided, and quick disassembly is realized; during equipment use, the bending pressing plate is tightly attached to the mobile plug, the extrusion column presses the curved panel, and the sealing ring is matched, so that the sealing property is ensured under the reduction of the use of bolts.

[0017] 1. By rotating the screw column, the movable plate drives the bending pressing plate to move upwards, then the arch frame is turned over to make the connecting ring rotate, the bending pressing plate and the extrusion column are moved to the side of the auxiliary warehouse away from the curved panel, at this time the mobile plug is taken out from the through hole, and the curved panel is taken out from the auxiliary warehouse together with the filter piece by means of the mobile plug, quick disassembly is realized; during equipment use, the bending pressing plate is tightly attached to the mobile plug, the extrusion column presses the curved panel, and the sealing ring is matched, so that the sealing property is ensured under the reduction of the use of bolts.

[0018] 2. When the threaded rod is rotated, the two blocking blocks are simultaneously moved, so that the starting can only enter the air changing pipe or the air inlet pipe, the turning is realized, the internal space of the control warehouse is large, there is no small angle of folding, and the situation that the impurities in the airflow collide and slow down due to the small angle of folding in the ball valve when the traditional three-way valve passes through the airflow, so that the impurities are accumulated, and then the ball valve is blocked. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic view of a front section structure of the utility model;

[0020] Figure 2 It is a schematic view of the installation structure of the arch frame and the auxiliary warehouse;

[0021] Figure 3 It is a schematic view of the installation structure of the curved panel;

[0022] Figure 4 It is Figure 2 It is an enlarged structure schematic view of position A in the middle;

[0023] Figure 5 It is Figure 1 It is an enlarged structure schematic view of position B in the middle.

[0024] In the figure: 1, filter main warehouse; 101, air inlet pipe; 102, air outlet valve pipe; 2, conversion assembly; 201, auxiliary warehouse; 202, air return valve pipe; 203, air exchange pipe; 204, connecting ring; 205, arch; 206, stud; 207, movable plate; 208, bent pressing plate; 209, L-shaped supporting block; 210, curved plate; 211, filter; 212, sealing ring; 213, movable insert; 214, extrusion column; 215, sliding column; 216, vertical groove; 3, steering assembly; 301, control warehouse; 302, blocking block; 303, air-tight ring; 304, connecting rod; 305, threaded rod; 306, air injection pipe. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] Please refer to Figure 1 - Figure 5 The utility model provides technical scheme: a civil air defense filter absorber with ventilation conversion structure, including filter main warehouse 1 and the air inlet pipe 101 of installation in filter main warehouse 1 one side, the other side fixed connection of filter main warehouse 1 has air outlet valve pipe 102, air outlet valve pipe 102 and air return valve pipe 202 are communicated, and the one-way valve is installed on it,

[0027] The outside of filter main warehouse 1 is provided with conversion assembly 2, and conversion assembly 2 includes auxiliary warehouse 201, one end of auxiliary warehouse 201 is fixedly connected with air return valve pipe 202, the other end of auxiliary warehouse 201 is fixedly connected with air exchange pipe 203, the outside of auxiliary warehouse 201 is equipped with arch 205, the middle part of arch 205 is threadedly connected with stud 206, the bottom end of stud 206 is rotatably connected with movable plate 207, the bottom of movable plate 207 is fixedly connected with three bent pressing plates 208, the outside of bent pressing plate 208 is embedded with three curved plates 210, and the two ends of curved plate 210 are provided with L-shaped supporting block 209 and movable insert 213;The outside of auxiliary warehouse 201 is provided with a stepped groove, the curved plate 210 is embedded in the stepped groove, and the length of the stepped groove is half of the circumference of the auxiliary warehouse 201.

[0028] The inner side of the curved plate 210 is fixedly connected with a filter 211, the two sides of the filter 211 are fixedly connected with sealing rings 212, the curved plate 210 can be attached to the surface of the movable insertion strip 213, the bottom of the bent pressing plate 208 is fixedly connected with an extrusion column 214, the two ends of the movable plate 207 are fixedly connected with sliding columns 215 in a symmetrical manner, and the end portions of the air inlet pipe 101 and the air exchange pipe 203 are provided with the same turning assembly 3; the diameter of the filter 211 is the inner diameter of the sub-chamber 201.

[0029] The two ends of the arch frame 205 are fixedly connected with connecting rings 204, the two connecting rings 204 are rotatably sleeved outside the air exchange pipe 203 and the air return valve pipe 202 respectively, the inner side of the arch frame 205 is symmetrically provided with vertical grooves 216, and the vertical grooves 216 are in sliding connection with the sliding columns 215.

[0030] The movable insertion strip 213 is in sliding connection with the curved plate 210, the L-shaped supporting block 209 is fixed to the outer side of the sub-chamber 201, the vertical surface of the L-shaped supporting block 209 is provided with a through hole, and the movable insertion strip 213 is inserted into the through hole.

[0031] The bottom of the bent pressing plate 208 is fixedly connected with the extrusion column 214, the extrusion column 214 is attached to the outer side of the curved plate 210, and the filter 211 can be attached to the inner wall of the sub-chamber 201; the filter 211 is a circular filter screen.

[0032] The turning assembly 3 comprises a control chamber 301, two blocking blocks 302 are vertically and slidably connected inside the control chamber 301, the blocking blocks 302 are attached to the inner wall of the control chamber 301, and the two blocking blocks 302 are fixedly connected on the side close to each other with air-tight rings 303; the air-tight rings 303 can prevent the start from escaping from the gap between the blocking blocks 302 and the control chamber 301.

[0033] The two air-tight rings 303 are fixedly connected with a connecting rod 304, the top end of the control chamber 301 is threadedly connected with a threaded rod 305, and the bottom end of the threaded rod 305 is rotatably connected with the top of one blocking block 302; the distance between the two blocking blocks 302 is the same as the distance between the ports of the air exchange pipe 203 and the air inlet pipe 101, so that the device has working states of air inlet of the air inlet pipe 101 or the air exchange pipe 203, or no air inlet of the two.

[0034] Gas injection pipes 306 are arranged between the two blocking blocks 302, the gas injection pipes 306 are fixedly connected to the outside of the control chamber 301, the top of the control chamber 301 is fixedly connected with the air exchange pipe 203, and the bottom of the control chamber 301 is fixedly connected with the air inlet pipe 101; the gas injection pipes 306 are exhaust pipes in the existing civil air defense air exchange system.

[0035] Working principle: Before using the civil air defense filter absorber with the ventilation conversion structure, the overall condition of the device needs to be checked to determine whether it can work normally, according to the working state of the device, the air exchange pipe 203 or the air inlet pipe 101 is connected with the control chamber 301, the air-tight ring 303 is inserted into the gap between the blocking block 302 and the control chamber 301, and the air exchange pipe 203 or the air inlet pipe 101 is connected with the control chamber 301. Figure 1 -Figure 5 As shown, when the filter 211 needs to be cleaned, the movable plate 207 is driven to move upwards by rotating the stud 206, so that the bent pressing plate 208 moves away from the moving strip 213, and the extrusion column 214 moves away from the curved plate 210, then the arch 205 is rotated, so that the connecting ring 204 is rotated, and the bent pressing plate 208 and the extrusion column 214 are both moved to the side of the sub-warehouse 201 away from the curved plate 210, at this time the moving strip 213 is taken out of the through hole, and the curved plate 210 is taken out of the sub-warehouse 201 together with the filter 211 by means of the moving strip 213, so that quick disassembly is realized;

[0036] In use of the device, the bent pressing plate 208 is in close contact with the moving strip 213, the extrusion column 214 is pressed against the curved plate 210, and the sealing ring 212 is cooperated, so that the sealing property is ensured with reduced use of bolts;

[0037] When the gas flow needs to enter the filter main warehouse 1, the threaded rod 305 is rotated to push the two blocking blocks 302 to move downwards at the same time, so that the upper blocking block 302 is located below the port of the air changing pipe 203, and the lower blocking block 302 is located below the port of the air inlet pipe 101, at this time the gas flow enters the control warehouse 301 through the air injection pipe 306, and then enters the air inlet pipe 101;

[0038] When the upper blocking block 302 is located above the port of the air changing pipe 203, the lower blocking block 302 can be located below the port of the air inlet pipe 101, so that the gas flow can enter the air changing pipe 203 without bending, and turning is realized.

[0039] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A civil defense filter absorber with ventilation conversion structure, comprising a filter main bin (1), and an air inlet pipe (101) installed on one side of the filter main bin (1), and an air outlet valve pipe (102) fixedly connected to the other side of the filter main bin (1); characterized in that Further comprising: A conversion assembly (2) is arranged outside the filter main bin (1), the conversion assembly (2) comprises a sub-bin (201), one end of the sub-bin (201) is fixedly connected with a return air valve pipe (202), the other end of the sub-bin (201) is fixedly connected with an air exchange pipe (203), an arch bracket (205) is arranged outside the sub-bin (201), a threaded stud (206) is threadedly connected to the middle part of the arch bracket (205), a movable plate (207) is rotatably connected to the bottom end of the threaded stud (206), three bent pressing plates (208) are fixedly connected to the bottom of the movable plate (207), three curved plates (210) are embedded outside the bent pressing plates (208), L-shaped supporting blocks (209) and movable insertion strips (213) are arranged at both ends of the curved plates (210); Wherein, a filter element (211) is fixedly connected to the inner side of the curved plate (210), sealing rings (212) are fixedly connected to both sides of the filter element (211), the curved plate (210) can be attached to the surface of the movable insertion strip (213), an extrusion column (214) is fixedly connected to the bottom of the bent pressing plate (208), slide columns (215) are fixedly connected to both ends of the movable plate (207) in a symmetrical manner, and the same turning assembly (3) is arranged at the end of the air inlet pipe (101) and the air exchange pipe (203).

2. The civil defense filter absorber with ventilation conversion structure according to claim 1, characterized in that: Both ends of the arch bracket (205) are fixedly connected with connecting rings (204), the two connecting rings (204) are rotatably sleeved outside the air exchange pipe (203) and the return air valve pipe (202) respectively, vertical grooves (216) are symmetrically formed in the inner side of the arch bracket (205), and the vertical grooves (216) are slidably connected with the slide columns (215).

3. The civil defense filter absorber with ventilation conversion structure according to claim 1, characterized in that: The movable insertion strip (213) is slidably connected with the curved plate (210), the L-shaped supporting blocks (209) are fixed outside the sub-bin (201), the vertical surface of the L-shaped supporting blocks (209) is provided with a through hole, and the movable insertion strip (213) is inserted into the through hole.

4. The civil defense filter absorber with ventilation conversion structure according to claim 1, characterized in that: The bottom of the bent pressing plate (208) is fixedly connected with the extrusion column (214), the extrusion column (214) is attached to the outer side of the curved plate (210), and the filter element (211) can be attached to the inner wall of the sub-bin (201).

5. The civil defense filter absorber with ventilation conversion structure according to claim 1, characterized in that: The turning assembly (3) comprises a control bin (301), two blocking blocks (302) are vertically and slidably connected inside the control bin (301), the blocking blocks (302) are attached to the inner wall of the control bin (301), and air-tight rings (303) are fixedly connected to the side of the blocking blocks (302) close to each other.

6. The civil defense filter absorber with ventilation conversion structure according to claim 5, characterized in that: A connecting rod (304) is fixedly connected between the two air-tight rings (303), a threaded rod (305) is threadedly connected to the top end of the control bin (301), and the bottom end of the threaded rod (305) is rotatably connected to the top of one of the blocking blocks (302).

7. The civil defense filter absorber with ventilation conversion structure according to claim 5, characterized in that: The two blocking blocks (302) are provided with a gas injection pipe (306), the gas injection pipe (306) is fixedly connected to the outside of the control bin (301), the top of the control bin (301) is fixedly connected with the gas exchange pipe (203), and the bottom of the control bin (301) is fixedly connected with the air inlet pipe (101).

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