CN212837939U - Civil air defense engineering gas defense passageway structure - Google Patents

Abstract

The utility model relates to a civil air defense engineering gas defense access structure, it includes pre-buried air pipe on the gas defense passageway wall body, air pipe has the flange pipe towards the one end welding in the gas defense passageway, the one end of keeping away from air pipe of flange pipe even has the flange joint board, even there is the valve connecting plate on the flange joint board, even there is superpressure exhaust valve on the valve connecting plate, be connected with main draw-in groove and vice draw-in groove on the wall body of air pipe place, main picture peg has been inserted in the main draw-in groove, be connected with the main connecting rod on the face that the wall body was kept away from to the main picture peg, vice picture peg has inserted vice picture peg, be connected with vice connecting rod on the face that the wall body was kept away from to the vice picture peg, main connecting rod and vice connecting rod are the telescopic link, the extension length of main connecting rod and vice connecting rod is. This application has the effect that reduces the installation step, improves the installation effectiveness.

Description

Civil air defense engineering gas defense passageway structure

Technical Field

The application relates to the field of civil air defense engineering, in particular to an anti-poison channel structure.

Background

The anti-poison channel is an indispensable sequence space in the civil air defense engineering, belongs to the civil air defense engineering, is connected with a contaminated area outside the engineering through an overpressure exhaust valve on the side wall where the ventilation pipeline is located and is connected with the ventilation pipeline, and has ventilation and air exchange conditions.

In order to exert better ventilation function, most overpressure exhaust valves in civil air-defense engineering are vertically arranged on the side wall of a gas pipeline of a gas defense channel, and the distance between every two overpressure exhaust valves is more than 60 cm. When the overpressure exhaust valve is installed, the overpressure exhaust valve is arranged and installed along the height direction of the side wall where the air pipe is located, the overpressure exhaust valve comprises a valve body, a heavy hammer connected to the valve body, a flange pipe and the air pipe preassembled on the side wall where the air pipe is located, one end of the flange pipe is welded with the air pipe, one end of the flange pipe, which is far away from the side wall where the air pipe is located, is circumferentially and fixedly connected with a flange connecting plate, one end of the valve body, which is close to the side wall where the air pipe is located, is circumferentially and fixedly connected with a valve connecting.

The existing method for installing the overpressure exhaust valve is that an operator holds the overpressure exhaust valve and then manually aligns the overpressure exhaust valve, namely, after the overpressure exhaust valve and a mounting hole of a flange pipe are aligned visually, another operator starts to install a bolt until the installation is completed.

Aiming at the related technologies, the inventor considers that at least an operator or other hoisting equipment or supporting equipment is needed to support the overpressure exhaust valve which is not installed and fixed in the installation process, and the bearing position needs to be finely adjusted to be opposite to the installation hole in the valve connecting plate on the flange connecting plate so as to facilitate bolt through connection, so that the defects of more steps, inconvenience in installation and low installation efficiency are caused during operation.

SUMMERY OF THE UTILITY MODEL

In order to improve the installation effectiveness of superpressure exhaust valve, reduce the installation cost, this application provides a civil air defense engineering poison proof passageway structure.

The application provides a civil air defense engineering gas protection access structure adopts following technical scheme:

an anti-poison channel structure comprises a channel side wall, wherein the channel side wall is surrounded to form an anti-poison channel with two open ends, protective airtight doors for opening and closing the end part of the anti-poison channel are arranged at the two ends of the anti-poison channel, exhaust holes communicated with the interior of a civil air defense project are arranged on the channel side wall, an air pipeline communicated with a poison region is pre-buried on the channel side wall, a flange pipe communicated with the air pipeline is welded at one end of the air pipeline facing the anti-poison channel, an annular flange connecting plate is fixedly connected to the circumferential direction of one end of the flange pipe far away from the air pipeline, an annular valve connecting plate is detachably connected to the flange connecting plate, an overpressure exhaust valve is fixedly connected to the valve connecting plate, a plurality of flange connecting holes distributed along the circumferential direction of the flange connecting plate are arranged on the flange connecting plate in a penetrating manner, a plurality of, the overpressure exhaust valve comprises a valve pipe which is connected to the valve connecting plate and extends in the direction away from the flange pipe, the bottom of the valve pipe is connected with a heavy hammer connecting plate, the heavy hammer connecting plate is connected with an articulated piece, a heavy hammer is articulated on the articulated piece, an articulated rod is articulated on the articulated piece, one end of the articulated rod, which is away from the heavy hammer, is connected with a valve, the valve is positioned in the valve pipe and slides along the axis of the valve pipe, the channel side wall is provided with a mounting frame, the mounting frame comprises a main clamping groove and an auxiliary clamping groove which are fixed on the channel side wall, the main clamping groove and the auxiliary clamping groove are distributed on two sides of the overpressure exhaust valve, the mounting frame further comprises a main connecting rod which is detachably connected with the main clamping groove and an auxiliary connecting rod which is detachably connected with the auxiliary clamping groove, the one end fixedly connected with of main connecting rod can insert the main picture peg in the main draw-in groove, the one end fixedly connected with of vice connecting rod can insert the vice picture peg in the vice draw-in groove, main connecting rod and vice connecting rod are the telescopic link, the mounting bracket still includes the locating plate that connects the tip that main connecting rod kept away from the main picture peg and the tip that vice connecting rod kept away from the vice picture peg, when main connecting rod and vice connecting rod stretch out to extreme position, the perpendicular distance between the passageway lateral wall that the locating plate bearing superpressure exhaust valve and locating plate and main draw-in groove are located is greater than the perpendicular distance between the passageway lateral wall that the valve connecting plate is close to the terminal surface of weight connecting plate and air pipe located, when main connecting rod and vice connecting rod retract to extreme state, the perpendicular distance between the passageway lateral wall that locating plate and main draw-in groove are located equals the perpendicular distance, the locating plate makes the axis coincidence of flange connecting plate and valve connecting plate, the width of locating plate is less than the vertical distance of weight connecting plate to valve connecting plate.

Through adopting above-mentioned technical scheme, through set up main draw-in groove and the vice draw-in groove that distributes in the flange pipe both sides on the lateral wall at air pipe place, main connecting rod and the vice connecting rod of connecting through main picture peg and vice picture peg are inserted to main draw-in groove and vice draw-in groove, make main connecting rod and vice connecting rod dismantle the connection, be connected with the locating plate between main connecting rod and the vice connecting rod, make the connection can be dismantled to the mounting bracket, and then make the mounting bracket can used repeatedly, reduce the cost of installation.

Be the telescopic link through main connecting rod and vice connecting rod for the locating plate can be along the position of valve connecting plate axis direction along with the flexible regulation of main connecting rod and vice connecting rod, makes locating plate and valve connecting plate butt and form the centre gripping relation with flange joint board, with valve connecting plate centre gripping between flange joint board and locating plate, makes the locating plate stable to the bearing state of superpressure exhaust valve, is difficult for rocking, thereby improves the efficiency of installation.

The locating plate enables the axis of the flange connecting plate to coincide with the axis of the valve connecting plate, so that the perpendicular distances from the axes of the valve connecting hole and the flange connecting hole to the axes of the valve connecting plate and the flange connecting plate are equal, the flange connecting hole is just opposite to the valve connecting hole, the locating function is achieved, the installation steps are reduced, and the installation efficiency is improved.

Preferably, main draw-in groove extends and open-top along vertical direction, be connected with main block of supporting on the inner wall that main draw-in groove is close to the passageway lateral wall, main block of supporting and main draw-in groove keep away from between the inner wall of passageway lateral wall leave the clearance and this clearance is less than the main thickness of inserting the board, vice draw-in groove extends and open-top along vertical direction, be connected with vice block of supporting on the inner wall that vice draw-in groove is close to the passageway lateral wall, vice block of supporting and vice draw-in groove keep away from between the inner wall of passageway lateral wall leave the clearance and this clearance is less than vice thickness of inserting the board, main block of supporting and vice block of supporting are the elastic block.

Through the technical scheme, through setting up main tight piece and vice tight piece of supporting and be the elastic block, main tight piece and main draw-in groove and vice tight piece of supporting and vice draw-in groove are kept away from and are left the clearance and this clearance is less than main picture peg and vice thickness of inserting the board between the inner wall of passageway lateral wall, make main picture peg and main draw-in groove and vice picture peg and vice draw-in groove pass through the elastic deformation centre gripping of elastic block and be connected, make main connecting rod and vice connecting rod more firm in the connection of main draw-in groove and vice draw-in groove, difficult not hard up, and then make the locating plate more stable, thereby make superpressure exhaust valve counterpoint more accurately, need not adjust, the efficiency of installation has been improved.

Preferably, the main tight block is close to the edge fillet between the end face and the side wall of the main inserting plate, and the auxiliary tight block is close to the edge fillet between the end face and the side wall of the auxiliary inserting plate.

Through the technical scheme, the main supporting block and the auxiliary supporting block are close to the edge fillets between the end faces and the side walls of the main inserting plate and the auxiliary inserting plate, so that the main inserting plate and the auxiliary inserting plate can be easily inserted into the main clamping groove and the auxiliary clamping groove, and the installation efficiency is improved.

Preferably, the outer walls of the main abutting block and the auxiliary abutting block are covered with talcum powder.

Through above-mentioned technical scheme, the outer wall through main tight piece and vice tight piece that supports coats and is stamped the talcum powder, reduces the main picture peg and vice picture peg and inserts the frictional force in main draw-in groove and the vice draw-in groove to the efficiency of installation has been improved.

Preferably, the tabular main tributary fagging of main connecting rod bottom fixedly connected with triangle-shaped, one of them side of main tributary fagging and main picture peg fixed connection, be equipped with the inclined plane on the inner wall that the passageway lateral wall was kept away from to the main draw-in groove, the inclined plane of main draw-in groove is parallel with the hypotenuse of main tributary fagging, the tabular auxiliary stay board of auxiliary connecting rod bottom fixedly connected with triangle-shaped, one of them side of auxiliary stay board and auxiliary picture peg fixed connection, be equipped with the inclined plane on the inner wall that the passageway lateral wall was kept away from to the auxiliary draw.

Through adopting above-mentioned technical scheme, through the inclined plane that main draw-in groove and vice draw-in groove set up, avoid main tributary fagging to be connected with the top point of main draw-in groove and vice backup pad and vice draw-in groove inner wall for main tributary fagging is more firm with being connected of main draw-in groove and vice backup pad and vice draw-in groove, is difficult for rocking, and then makes the locating plate more stable, thereby makes superpressure exhaust valve counterpoint more accurately, need not adjust, has improved the efficiency of installation.

Preferably, the main connecting rod comprises a tubular main fixing rod and a main movable rod inserted in the main fixing rod and sliding, the main fixing rod is in threaded connection with a main bolt penetrating through the side wall of the main fixing rod, the length of the main bolt is greater than the thickness of the side wall of the main fixing rod, the auxiliary connecting rod comprises a tubular auxiliary fixing rod and an auxiliary movable rod inserted in the auxiliary fixing rod and sliding, the auxiliary fixing rod is in threaded connection with an auxiliary bolt penetrating through the side wall of the auxiliary fixing rod, and the length of the auxiliary bolt is greater than the thickness of the side wall of the auxiliary fixing rod.

Through the technical scheme, through installing the kingbolt on the main dead lever, rotatory kingbolt supports tight main movable rod after main movable rod has adjusted, through installing vice bolt on vice dead lever, rotatory vice bolt supports tight vice movable rod after vice movable rod has adjusted, make main movable rod and vice movable rod more firm, and then make superpressure exhaust valve press from both sides tightly between mounting bracket and flange connecting plate more firmly, thereby ensure that superpressure exhaust valve can not become flexible in the installation, improve the efficiency of installation.

Preferably, locating plate one end is articulated with vice movable rod and rotates around the direction that is on a parallel with the direction of stretching out of vice movable rod, the one end fixedly connected with fixed block of vice movable rod is kept away from to the locating plate, the bottom of main movable rod is sunken to have the fixed slot that supplies the fixed block to slide in, the tip that main movable rod was kept away from to main movable rod runs through the slide opening that has the connection fixed slot, sliding connection has the fly leaf in the slide opening, the fixed block slides in the fixed slot just when the fly leaf slides to extreme position towards the fixed slot, the fly leaf is located fixed block bottom and bearing fixed block.

Through the technical scheme, through sunken have the slide opening of taking the fly leaf and the fixed slot that is connected with the fixed block on main movable rod, vice movable rod is articulated with the locating plate, the fly leaf is taken out before the installation superpressure exhaust valve, the one end rotation that the locating plate is close to main movable rod reaches the fixed slot to the slide opening, then insert the slide opening with the fly leaf, make the removal that blocks the fixed block, after superpressure exhaust valve installation is accomplished, take out the fly leaf, the fixed block roll-off fixed slot, make the locating plate can the roll-off and through rotating the mounting bracket when can taking off for the centre of a circle around vice movable rod, thereby make the mounting bracket take off reuse, reduce installation cost.

Preferably, the positioning plate is a semicircular plate, and when the positioning plate supports the overpressure exhaust valve, the inner diameter of the positioning plate is equal to the outer diameter of the overpressure exhaust valve.

Through the technical scheme, the locating plate is the semi-circular arc plate, the inner diameter of the locating plate is equal to the outer diameter of the overpressure exhaust valve, the locating plate can be connected with the side wall of the overpressure exhaust valve, the contact area of the overpressure exhaust valve and the locating plate is larger, connection is more stable, the overpressure exhaust valve is not prone to loosening during installation, and installation efficiency is improved.

Preferably, the inner wall of the positioning plate is fixedly connected with an anti-skid layer.

Through the technical scheme, the friction force between the overpressure exhaust valve and the positioning plate is increased through the anti-slip layer on the inner wall of the positioning plate, so that the overpressure exhaust valve is not easy to slide after being positioned, more stable alignment is realized, and the installation efficiency is improved.

Preferably, still fixedly connected with places the main trough and places the auxiliary groove on the passageway lateral wall, place the main trough and place the auxiliary groove and be located the highest flange pipe top, it is unanimous with the main draw-in groove to place the main trough structure, it is unanimous with the auxiliary draw-in groove to place the auxiliary groove structure.

Through above-mentioned technical scheme, through the top installation at the highest flange pipe place the main trough with place the auxiliary tank for the mount frame is through placing the main trough and placing the auxiliary tank when not using and go up the top of connecting at the passageway lateral wall, makes the pedestrian be difficult for damaging when the passway, reduces the potential safety hazard.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the mounting frame is arranged into a semicircular arc shape, so that the mounting frame is better attached to the overpressure exhaust valve, the axes of the overpressure exhaust valve connecting plate and the flange connecting plate are collinear, the alignment function is realized, the mounting steps are reduced, and the mounting efficiency is improved;

2. the main bolt and the auxiliary bolt are arranged on the main connecting rod and the auxiliary connecting rod through the main connecting rod and the auxiliary connecting rod, and the mounting frames are more stably connected through the supporting structures of the main supporting rod and the auxiliary supporting rod and through the clamping connection of the main abutting block and the auxiliary abutting block, so that the mounting frames are not easy to shake in the mounting process, and the mounting efficiency is improved;

3. the main connecting rod and the auxiliary connecting rod are detachably connected in the main clamping groove and the auxiliary clamping groove, so that the mounting frame can be repeatedly utilized, and the mounting cost is reduced;

4. the main groove and the auxiliary groove are arranged above the highest flange pipe, so that the mounting frame is arranged above the side wall of the main groove and the side wall of the auxiliary groove connecting channel through the clamping when the mounting frame is not used, pedestrians are not prone to being damaged when the pedestrians pass by, and potential safety hazards are reduced.

Drawings

Fig. 1 is a schematic view of the overall structure of the interior of the poison-proof channel in the present application.

Fig. 2 is a partial structural schematic diagram of the interior of the poison-proof channel in the present application.

Fig. 3 is a partial structural schematic diagram of the interior of the poison-proof channel in the present application.

Fig. 4 is an enlarged schematic view of a portion a of fig. 2.

Fig. 5 is an enlarged schematic view of a portion B of fig. 3.

Description of reference numerals: 1. a channel sidewall; 11. a ventilation duct; 12. a flange pipe; 121. a flange connecting plate; 122. connecting a flange with a hole; 13. an overpressure exhaust valve; 131. a valve connecting plate; 132. a valve connecting hole; 133. a bolt; 134. a nut; 135. a weight; 136. a heavy hammer connecting plate; 137. a valve tube; 138. a hinged lever; 139. a shutter; 140. an articulation member; 2. a mounting frame; 21. a main card slot; 211. a main notch; 22. an auxiliary card slot; 221. a secondary slot opening; 23. a main abutting block; 24. a secondary abutment block; 25. a main connecting rod; 251. a main fixing rod; 252. a main movable bar; 253. a main plug board; 254. a main bolt; 255. a main fixing hole; 256. a main supporting plate; 26. a secondary connecting rod; 261. an auxiliary fixing rod; 262. a secondary movable rod; 263. a sub-flashboard; 264. a secondary bolt; 265. a secondary fixing hole; 266. a sub-support plate; 27. placing a main groove; 28. placing an auxiliary groove; 3. positioning a plate; 31. a main connecting block; 32. an auxiliary connecting block; 33. a fixed block; 34. fixing grooves; 35. a hinge; 36. a slide hole; 37. a movable plate; 38. a handle; 39. an anti-slip layer; 4. an anti-virus channel; 41. an exhaust hole; 42. provided is a protective airtight door.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses a poison prevention channel structure, referring to fig. 1 and fig. 3, the poison prevention channel structure comprises a channel side wall 1, the channel side wall 1 surrounds and forms a poison prevention channel 4 with two open ends, two ends of the poison prevention channel 4 are respectively provided with a protective airtight door 42 for opening and closing the end part of the poison prevention channel 4, the channel side wall 1 is provided with an exhaust hole 41 communicated with the interior of a civil air defense project, a ventilation pipeline 11 communicated with a poison region is pre-embedded on the channel side wall 1, one end of the ventilation pipeline 11 facing the inside of the poison prevention channel 4 is welded with a flange pipe 12 communicated with the ventilation pipeline 11, one end of the flange pipe 12 far away from the ventilation pipeline 11 is circumferentially and fixedly connected with an annular flange connecting plate 121, the circumferential direction of the flange connecting plate 121 is provided with a plurality of flange connecting holes 122, the axial line of the flange connecting plate 121 is collinear with, the circumference of the valve connecting plate 131 is provided with a valve connecting hole 132 which is the same as the flange connecting hole 122, the axis of the valve connecting hole 132 is collinear with the axis of the flange connecting hole 122, the flange connecting hole 122 and the valve connecting hole 132 are connected with a nut 134 through a bolt 133, the head of the bolt 133 is far away from the ventilation pipeline 11 and is perpendicular to the valve connecting plate 131, the axis of the valve connecting plate 131 is collinear with the axis of the ventilation pipeline 11, the valve connecting plate 131 is fixedly connected with an overpressure exhaust valve 13, the overpressure exhaust valve 13 comprises a valve pipe 137 fixedly connected to the valve connecting plate 131, the valve pipe 137 extends towards the direction far away from the flange pipe 12, the bottom of the valve pipe 137 is fixedly connected with a weight connecting plate 136, the weight connecting plate 136 is connected with a hinge member 140, the hinge member 140 is hinged with a weight 135 which is perpendicular to the weight connecting plate 136, the hinge member 140 is also hinged with a hinge rod 139, the plate surface of the weight connecting plate 136 is abutted against the side wall of the overpressure exhaust valve 13, the valve pipe 137 is provided with a snap ring, the weight 135 drives the valve 139 to abut against the port of the valve pipe 137 to seal the valve pipe 137, and a distance is reserved between the weight connecting plate 136 and the valve connecting plate 131.

Referring to fig. 2, the poison prevention channel structure further includes a mounting rack 2 fixedly connected to the channel side wall 1 where the ventilation duct 11 is located, the mounting rack 2 includes a main clamping groove 21 and an auxiliary clamping groove 22, the main clamping groove 21 and the auxiliary clamping groove 22 are installed at both sides of the flange pipe 12, the mounting rack 2 further includes a main connecting rod 25 detachably connected to the main clamping groove 21 and an auxiliary connecting rod 26 detachably connected to the auxiliary clamping groove 22, the main connecting rod 25 is connected to a main inserting plate 253 capable of being inserted into the main clamping groove 21, the auxiliary connecting rod 26 is connected to an auxiliary inserting plate 263 capable of being inserted into the auxiliary clamping groove 22, the main connecting rod 25 and the auxiliary connecting rod 26 are telescopic rods, one end of the auxiliary connecting rod 26 far away from the auxiliary clamping groove 22 is hinged to a positioning plate 3, one end of.

Referring to fig. 3, the main slot 21 has a square hollow structure, the main slot 21 includes four side walls, a main notch 211 and a bottom wall, and one of the side walls of the main slot 21 is fixedly connected to the side wall where the ventilation duct 11 is located. The auxiliary clamping groove 22 is of a square hollow structure, the auxiliary clamping groove 22 comprises four side walls, an auxiliary notch 221 and a bottom wall, and one side wall of the auxiliary clamping groove 22 is fixedly connected with the side wall where the ventilation pipeline 11 is located.

Referring to fig. 2, the main connecting rod 25 includes a main fixing rod 251 and a main moving rod 252 protruding in a direction away from the side wall where the ventilation duct 11 is located, and the sub connecting rod 26 includes a sub fixing rod 261 and a sub moving rod 262 protruding in a direction away from the side wall where the ventilation duct 11 is located.

Referring to fig. 3, main picture peg 253 is rectangular plate-shaped, main picture peg 253 includes two faces and four sides, fixedly connected with owner supports tight piece 23 on the inside wall that main draw-in groove 21 is connected with the lateral wall at air pipe 11 place, main support tight piece 23 is the rubber block and is the round platform form, the axis perpendicular to of main support tight piece 23 is on the lateral wall of main draw-in groove 21 of place, the diameter that main support tight piece 23 is connected at main draw-in groove 21 up end is greater than the diameter of keeping away from the lateral wall terminal surface at air pipe 11 place, the main terminal surface that keeps away from the main draw-in groove 21 lateral wall at place and the marginal radius horn shape of lateral wall and cover have the talcum powder, main support tight piece and main draw-in groove 21 keep away from between the inner wall of passageway lateral wall 1 and leave the. The structure of the auxiliary clamping groove 22 is consistent with that of the main clamping groove 21, one end of the auxiliary fixing rod 261 close to the auxiliary clamping groove 22 is fixedly connected with an auxiliary inserting plate 263 capable of being inserted into the auxiliary clamping groove 22, the auxiliary inserting plate 263 is rectangular plate-shaped, the auxiliary inserting plate 263 comprises two plate surfaces and four side surfaces, an auxiliary abutting block 24 is fixedly connected to the inner side wall of the side wall connection of the auxiliary clamping groove 22 and the ventilation pipeline 11, the auxiliary abutting block 24 is a rubber block and is in a circular truncated cone shape, the axis of the auxiliary abutting block 24 is perpendicular to the side wall of the auxiliary clamping groove 22, the diameter of the auxiliary abutting block 24 connected to the upper end surface of the auxiliary clamping groove 22 is larger than that of the side wall end surface far away from the ventilation pipeline 11, the end surface of the auxiliary abutting block 24 far away from the side wall of the auxiliary clamping groove 22 and the edge of the side wall are chamfered corners and are covered with talcum powder, and a gap is reserved.

Referring to fig. 2, a main placing groove 27 and a secondary placing groove 28 are fixedly connected to the side wall 1 of the channel where the ventilation duct 11 is located, the main placing groove 27 and the secondary placing groove 28 are located above the highest flange pipe 12, the main placing groove 27 and the secondary placing groove 28 are in the same structure as the main clamping groove 21 and the secondary clamping groove 22, the main placing groove 27 is located right above the main clamping groove 21, and the secondary placing groove 28 is located right above the secondary clamping groove 22.

Referring to fig. 3, a triangular plate-shaped main support plate 256 is fixedly connected to a connection portion between the bottom of the main fixing rod 251 and the main insertion plate 253, one side edge of the main support plate 256 is fixedly connected to the main insertion plate 253, an inclined plane parallel to the inclined edge of the main support plate 256 is arranged on the top of the inner wall of the main slot 21 away from the channel side wall 1, a triangular plate-shaped sub support plate 266 is fixedly connected to a connection portion between the bottom of the sub fixing rod 261 and the sub insertion plate 263, one side edge of the sub support plate 266 is fixedly connected to the sub insertion plate 263, and an inclined plane parallel to the inclined edge of the sub support plate 266.

Referring to fig. 2, the outer side wall of the main movable rod 252 is connected to the inner side wall of the main fixed rod 251, the main movable rod 252 is a square rod, the axis of the main movable rod 252 is collinear with the central line of the main fixed rod 251, a main bolt 254 penetrates through the side wall where the main movable rod 251 is connected to the main movable rod 252, the main bolt 254 is perpendicular to the side wall where the main bolt is located, a main fixing hole 255 is formed in the side wall of the main fixed rod 251, an internal thread is formed in the main fixing hole 255, the main bolt 254 penetrates through the side wall where the main movable rod 252 is located and is in threaded connection with the main fixing hole 255, and the length of the main bolt 254 is greater. The outer side wall of the auxiliary movable rod 262 is connected with the inner side wall of the auxiliary fixed rod 261, the auxiliary movable rod 262 is a square rod, the axis of the auxiliary movable rod 262 is collinear with the axis of the auxiliary fixed rod 261, an auxiliary bolt 264 penetrates through the side wall where the auxiliary fixed rod 261 is connected with the auxiliary movable rod 262, the auxiliary bolt 264 is perpendicular to the side wall where the auxiliary bolt is located, an auxiliary fixed hole 265 is formed in the side wall of the auxiliary fixed rod 261, an internal thread is formed in the auxiliary fixed hole 265, the auxiliary bolt 264 penetrates through the side wall where the auxiliary movable rod 262 is located and is in threaded connection with the auxiliary fixed hole 265, and the length of the auxiliary bolt 264 is larger than.

Referring to fig. 2 and 4, an end of the auxiliary movable rod 262 extending out is hinged to the auxiliary connecting block 32 through the hinge 35, a rotating shaft of the hinge 35 is located on a surface away from a butt surface of the hinge 35 and the auxiliary movable rod 262, a cross section of the auxiliary connecting block 32 is approximately in a right trapezoid shape, the auxiliary connecting block 32 includes five planes and a curved surface, the curved surface of the auxiliary connecting block 32 is away from the auxiliary movable rod 262 and is fixedly connected with the positioning plate 3, the cross section of the positioning plate 3 is in a semi-circular arc shape, an arc surface of the positioning plate 3 connected with the auxiliary connecting block 32 is matched with the curved surface of the auxiliary connecting block 32, the positioning plate 3 swings along with the hinge of the auxiliary connecting block 32 and the auxiliary movable rod 262 and a swing direction perpendicular to the extending direction of the auxiliary movable rod 262, the other end of the positioning.

Referring to fig. 3 and 5, a fixed block 33 is fixedly connected to a side surface opposite to the curved surface of the main connecting block 31, the fixed block 33 is a square block, a fixed groove 34 for the fixed block 33 to slide into is recessed at the bottom of the main movable rod 252, a sliding hole 36 for connecting the fixed groove 34 penetrates through an end portion of the main movable rod 252 away from the main fixed plate, the cross section of the sliding hole 36 is rectangular, the sliding hole 36 extends along the length direction of the main connecting rod 25, a movable plate 37 is slidably connected in the sliding hole 36, the length of the movable plate 37 along the axial direction of the main connecting rod 25 is greater than that of the fixed block 33 along the axial direction of the main connecting rod 25, the fixed block 33 slides into the fixed groove 34, and when the movable plate 37 is inserted into the sliding hole 36 to a limit position, the movable plate 37 is located at the bottom of the fixed block 33 and supports the fixed.

Referring to fig. 3, when the positioning plate 3 is fixed on the main movable rod 252, the positioning plate supports the shutter tube 137, the axis of the shutter connecting plate 131 is collinear with the axis of the flange connecting plate 121, the distance from the shutter connecting hole 132 to the axis of the shutter connecting plate 131 is equal to the distance from the axis of the flange connecting hole 122 to the axis of the flange connecting plate 121, and the length of the positioning plate 3 in the axis direction of the shutter connecting plate 131 is smaller than the perpendicular distance from the weight connecting plate 136 to the shutter connecting plate 131.

The implementation principle of the civil air defense engineering anti-virus channel structure is as follows: during the assembly mounting bracket 2, main connecting rod 25 and vice connecting rod 26 insert on main draw-in groove 21 and the vice draw-in groove 22 of passageway lateral wall 1 at ventilation pipe 11 place respectively through main picture peg 253 and vice picture peg 263, make main connecting rod 25 and vice connecting rod 26 fix the stable connection on passageway lateral wall 1, install on main connecting rod 25 and vice connecting rod 26 at the both ends of locating plate 3, make locating plate 3 firm the connection form bearing structure, during installation superpressure exhaust valve 13, place the valve and can realize counterpoint support function on locating plate 3, reduce the operation step, thereby improve the work efficiency of installation.

The main connecting rod 25 and the auxiliary connecting rod 26 are telescopic rods, so that after the overpressure exhaust valve 13 is placed on the positioning plate 3, the overpressure exhaust valve 13 is clamped tightly by the aid of the mounting frame 2 and the flange connecting plate 121 in a matched mode through adjustment of the telescopic rods, the overpressure exhaust valve 13 is not prone to loosening in the mounting process, and mounting efficiency is improved.

Through the main tight piece 23 and the vice tight piece 24 of supporting that set up rubber material in the draw-in groove, make main picture peg 253 and main tight piece 23 and vice picture peg 263 and vice being connected of supporting tight piece 24 closely firm more, the connection of main connecting rod 25 in main draw-in groove 21 and the connection of vice connecting rod 26 in vice draw-in groove 22 are firm more, difficult not hard up, and then make locating plate 3 more stable, thereby make superpressure exhaust valve 13 counterpoint more accurately, need not adjust, the efficiency of installation has been improved.

Keep away from the terminal surface fillet shape of the main draw-in groove 21 lateral wall at place and have the talcum powder through main tight piece that supports, vice tight piece that supports keeps away from the terminal surface fillet shape of the vice draw-in groove 22 lateral wall at place and has the talcum powder for main picture peg 253 and vice picture peg 263 insert more easily in main draw-in groove 21 and the vice draw-in groove 22, thereby improve the efficiency of installation.

Main block and main draw-in groove 21 keep away from and leave the thickness that the clearance just is less than main picture peg 253 between the inner wall of passageway lateral wall 1, vice block and vice draw-in groove 22 keep away from and leave the thickness that the clearance just is less than vice picture peg 263 between the inner wall of passageway lateral wall 1, make main picture peg 253 and vice picture peg 263 connect through the elastic deformation centre gripping of main block 23 and vice block 24 that supports, make main connecting rod 25 and vice connecting rod 26 more stable in main draw-in groove 21 and vice draw-in groove 22 connection, be difficult for rocking, and then make locating plate 3 more stable, thereby make superpressure exhaust valve 13 counterpoint more accurately, need not adjust, the efficiency of installation has been improved.

A main placing groove 27 and a secondary placing groove 28 which are positioned above the highest flange pipe 12 of the main clamping groove 21 and the secondary clamping groove 22 are fixedly connected to the side wall 1 of the channel where the ventilating pipeline 11 is positioned, and the structures for placing the main placing groove and the secondary placing groove 28 are consistent with the main clamping groove 21 and the secondary clamping groove 22, so that the mounting frame 2 is inserted into the main placing groove 27 and the secondary placing groove 28 when not in use, the collision of pedestrians during walking is reduced, and the potential safety hazard is reduced.

The auxiliary support plate 266 is arranged at the intersection of the main connecting rod 25 and the main inserting plate 253, the auxiliary support plate 266 is arranged at the intersection of the auxiliary connecting rod 26 and the auxiliary inserting plate 263, the inclined plane attached to the inclined plane of the main support plate 256 is arranged on the main clamping groove 21, and the inclined plane attached to the inclined plane of the auxiliary support plate 266 is arranged on the auxiliary clamping groove 22, so that the main inserting plate 253 is more stably and firmly connected with the main connecting rod 25, the auxiliary inserting plate 263 and the auxiliary connecting rod 26 and is not easy to shake, the positioning plate 3 is more stable, the overpressure exhaust valve 13 is aligned more accurately without adjustment, and the installation efficiency is improved.

By installing the main bolt 254 and the auxiliary bolt 264 on the main fixing rod 251 and the auxiliary fixing rod 261, and the length of the main bolt 254 and the length of the auxiliary bolt 264 are larger than the thickness of the side walls of the main fixing rod 251 and the auxiliary fixing rod 261, after the movable driving rod and the auxiliary movable rod 262 are adjusted, the main bolt 254 is rotated to tightly abut against the space between the main movable rod mounting frame 2 and the flange connecting plate 121, so that the overpressure exhaust valve 13 is ensured not to be loosened in the installation process, and the installation efficiency is improved.

Sunken smooth hole 36 has on the vice movable rod 262, there is fly leaf 37 in the smooth hole 36, still sunken fixed slot 34 on the vice movable rod 262, fixed slot 34 is kept away from and is run through with smooth hole 36, sliding connection has fixed block 33 in the fixed slot 34, locating plate 3 passes through fixed block 33 and fixed slot 34 sliding connection, vice connecting block 32 passes through hinge 35 with vice movable rod 262 and is connected, after the installation is accomplished, fly leaf 37 takes out, fixed block 33 roll-off fixed slot 34, make locating plate 3 can rotate to the position that can take off, be connected through dismantling of main connecting rod 25 and main draw-in groove 21 and vice connecting rod 26 and vice draw-in groove 22, make the reuse can be taken off to mounting bracket 2, and the cost is reduced.

The handle 38 is fixedly connected to the plate surface of the movable plate 37 far away from the auxiliary movable rod 262, and the movable plate 37 is pushed and pulled through the handle 38, so that the operation is more convenient and faster, and the installation efficiency is improved.

The locating plate 3 is a semicircular arc plate, and the axis of the valve connecting plate 131 is collinear with the axis of the flange connecting plate after installation, so that the vertical distances from the axes of the valve connecting hole 132 and the flange connecting hole 122 to the axes of the valve connecting plate 131 and the flange connecting plate 121 are equal, the flange connecting hole 122 is just opposite to the valve connecting hole 132, the locating function is realized, the installation steps are reduced, and the installation efficiency is improved.

The anti-slip layer 39 is fixedly connected to the inner wall of the positioning plate 3, the anti-slip layer 39 is a rubber layer, and friction force between the positioning plate 3 and the overpressure exhaust valve 13 is increased, so that the overpressure exhaust valve 13 is not prone to sliding after being positioned, connection stability is improved, more stable alignment is achieved, and installation efficiency is improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. The utility model provides a civil air defense engineering gas protection passageway (4) structure, includes passageway lateral wall (1), its characterized in that: the utility model discloses a gas protection device, including passageway lateral wall (1), gas protection channel (4) that form both ends open-ended are enclosed in passageway lateral wall (1), gas protection channel (4) both ends all are equipped with to lead to and close gas protection channel (4) tip open-ended protective airtight door, be equipped with on passageway lateral wall (1) with inside exhaust hole (41) that communicate of civil air defense engineering, pre-buried on passageway lateral wall (1) have air pipe (11) with contamination district intercommunication, air pipe (11) have flange pipe (12) with air pipe (11) intercommunication towards one end welding in gas protection channel (4), the one end circumference fixedly connected with annular flange joint board (121) of keeping away from air pipe (11) of flange pipe (12), can dismantle on flange joint board (121) and be connected with annular valve joint board (131), fixedly connected with superpressure exhaust valve (13) on valve joint board (131), run through on flange joint board (121) and be equipped with a plurality of flange even that distribute along flange joint The valve connecting plate (131) is provided with a plurality of valve connecting holes (132) distributed along the circumferential direction of the valve connecting plate (131) in a penetrating mode, the vertical distance between the axis of the flange connecting hole (122) and the axis of the flange connecting plate (121) is consistent with the vertical distance between the axis of the valve connecting hole (132) and the axis of the valve connecting plate (131), the overpressure exhaust valve (13) comprises a valve pipe (137) connected to the valve connecting plate (131) and extending towards the direction far away from the flange pipe (12), the bottom of the valve pipe (137) is connected with a heavy hammer connecting plate (136), the heavy hammer connecting plate (136) is connected with a hinge piece (140), the hinge piece (140) is hinged with a heavy hammer (135), the hinge piece (140) is further hinged with a hinge rod (138), and one end, far away from the heavy hammer (135), of the hinge rod (138) is connected with a valve (139), valve (139) are spacing in valve pipe (137), be equipped with mounting bracket (2) on passageway lateral wall (1), mounting bracket (2) are including being fixed in main draw-in groove (21) and vice draw-in groove (22) on passageway lateral wall (1), main draw-in groove (21) and vice draw-in groove (22) distribute in superpressure exhaust valve (13) both sides, mounting bracket (2) still include can dismantle main connecting rod (25) of being connected with main draw-in groove (21) and can dismantle vice connecting rod (26) of being connected with vice draw-in groove (22), the one end fixedly connected with of main connecting rod (25) can insert main picture peg (253) in main draw-in groove (21), the one end fixedly connected with of vice connecting rod (26) can insert vice picture peg (263) in vice draw-in groove (22), main connecting rod (25) and vice connecting rod (26) are the telescopic link, mounting bracket (2) are still including connecting in main connecting rod (25) keep away from main picture peg (253) tip and vice connecting 26) Keep away from locating plate (3) of the tip of assistant picture peg (263), main connecting rod (25) and vice connecting rod (26) stretch out to extreme position when, locating plate (3) bearing superpressure exhaust valve (13) and the perpendicular distance between passageway lateral wall (1) at locating plate (3) and main draw-in groove (21) place is greater than the perpendicular distance between the terminal surface that valve connecting plate (131) is close to weight connecting plate (136) and passageway lateral wall (1) at air pipe (11) place, when main connecting rod (25) and vice connecting rod (26) retract to extreme state, the perpendicular distance between passageway lateral wall (1) at locating plate (3) and main draw-in groove (21) place equals the perpendicular distance between the terminal surface that valve connecting plate (131) is close to weight connecting plate (136) and passageway lateral wall (1) at air pipe (11) place, locating plate (3) make the axis coincidence of flange connecting plate (121) and valve connecting plate (131), the width of the positioning plate (3) is smaller than the vertical distance from the heavy hammer connecting plate (136) to the valve connecting plate (131).

2. The civil air defense construction air defense channel (4) structure of claim 1, characterized in that: main draw-in groove (21) extend and open-top along vertical direction, be connected with main block (23) of supporting on main draw-in groove (21) is close to the inner wall of passageway lateral wall (1), main block (23) of supporting and main draw-in groove (21) keep away from between the inner wall of passageway lateral wall (1) and leave the thickness that clearance and this clearance are less than main picture peg (253), vertical direction extension and open-top are followed in vice draw-in groove (22), be connected with vice block (24) of supporting on vice draw-in groove (22) is close to the inner wall of passageway lateral wall (1), vice block (24) of supporting and vice draw-in groove (22) keep away from between the inner wall of passageway lateral wall (1) and leave the thickness that clearance and this clearance are less than vice picture peg (263), main block (23) of supporting and vice block (24) of supporting are the elastic block.

3. The civil air defense construction air defense channel (4) structure of claim 2, characterized in that: the main abutting block (23) is close to an edge fillet between the end face and the side wall of the main insertion plate (253), and the auxiliary abutting block (24) is close to an edge fillet between the end face and the side wall of the auxiliary insertion plate (263).

4. The civil air defense construction air defense channel (4) structure of claim 3, characterized in that: the outer walls of the main abutting block (23) and the auxiliary abutting block (24) are covered with talcum powder.

5. The civil air defense construction air defense channel (4) structure of claim 1, characterized in that: main connecting rod (25) bottom fixedly connected with triangle-shaped plate-like main tributary fagging (256), main tributary fagging (256) wherein a side and main picture peg (253) fixed connection, be equipped with the inclined plane on the inner wall that passageway lateral wall (1) was kept away from in main draw-in groove (21), the inclined plane of main draw-in groove (21) is parallel with the hypotenuse of main tributary fagging (256), vice connecting rod (26) bottom fixedly connected with triangle-shaped plate-like auxiliary support board (266), one side and auxiliary picture peg (263) fixed connection wherein in auxiliary support board (266), be equipped with the inclined plane on the inner wall that passageway lateral wall (1) was kept away from in vice draw-in groove (22), the inclined plane of vice draw-in groove (22).

6. The civil air defense construction air defense channel (4) structure of claim 1, characterized in that: the main connecting rod (25) comprises a tubular main fixing rod (251) and a main movable rod (252) inserted in the main fixing rod (251) in a sliding mode, a main bolt (254) penetrating through the side wall of the main fixing rod (251) is in threaded connection with the main fixing rod (251), the length of the main bolt (254) is larger than the thickness of the side wall of the main fixing rod (251), the auxiliary connecting rod (26) comprises a tubular auxiliary fixing rod (261) and an auxiliary movable rod (262) inserted in the auxiliary fixing rod (261) in a sliding mode, an auxiliary bolt (264) penetrating through the side wall of the auxiliary fixing rod (261) is in threaded connection with the auxiliary fixing rod (261), and the length of the auxiliary bolt (264) is larger than the thickness of the side wall of the.

7. The civil air defense construction air defense channel (4) structure of claim 6, characterized in that: locating plate (3) one end and vice movable rod (262) are articulated and rotate around the direction that is on a parallel with the direction of extension of vice movable rod (262), one end fixedly connected with fixed block (33) of vice movable rod (262) are kept away from in locating plate (3), the bottom of main movable rod (252) is sunken to have fixed slot (34) that supplies fixed block (33) to slide in, the tip that main fixed rod (251) was kept away from in main movable rod (252) runs through slide opening (36) that have connection fixed slot (34), sliding opening (36) sliding connection has fly leaf (37), fixed block (33) slide in fixed slot (34) just when fly leaf (37) slide to extreme position towards fixed slot (34), fly leaf (37) are located fixed block (33) bottom and bearing fixed block (33).

8. The civil air defense construction air defense channel (4) structure of claim 1, characterized in that: the positioning plate (3) is a semicircular arc plate, and when the positioning plate (3) supports the overpressure exhaust valve (13), the inner diameter of the positioning plate (3) is equal to the outer diameter of the overpressure exhaust valve (13).

9. The civil air defense construction air defense channel (4) structure of claim 1, characterized in that: and an anti-skid layer (39) is fixedly connected to the inner wall of the positioning plate (3).

10. The civil air defense construction air defense channel (4) structure of claim 1, characterized in that: still fixedly connected with places main groove (27) and places vice groove (28) on passageway lateral wall (1), place main groove (27) and place vice groove (28) and be located the highest flange pipe (12) top, it is unanimous with main draw-in groove (21) to place main groove (27) structure, it is unanimous with vice draw-in groove (22) to place vice groove (28) structure.

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