CN211008712U - Protective closed gate valve of wall-through air pipe - Google Patents
Protective closed gate valve of wall-through air pipe Download PDFInfo
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- CN211008712U CN211008712U CN201922011338.8U CN201922011338U CN211008712U CN 211008712 U CN211008712 U CN 211008712U CN 201922011338 U CN201922011338 U CN 201922011338U CN 211008712 U CN211008712 U CN 211008712U
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- airtight
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Abstract
The utility model relates to an engineering protection technical field discloses a protection airtight gate valve of wall tuber pipe. The utility model comprises a box body, a closed cover plate component arranged in the box body and a driving component for driving the closed cover plate component to open or close; the box body comprises a connecting pipe body and an equipment box which are mutually communicated, openings at two ends of the connecting pipe body are respectively connected and sealed with a wall-penetrating pipe fitting and an air pipe which are pre-embedded in a wall body, the equipment box is positioned at one side of the connecting pipe body, the airtight cover plate assembly comprises an airtight flashboard matched with a pipe orifice of the wall-penetrating pipe fitting and a sliding piece positioned on the surface of the airtight flashboard, the sliding piece is matched and slidably arranged in a high-position slideway or a low-position slideway at two sides, and the airtight flashboard is connected with the driving; the driving component comprises a transmission assembly for outputting power and a guide assembly for adjusting the direction of the power. The utility model discloses need not the ann and tear open, it is convenient to use, labour saving and time saving, the leakproofness is good.
Description
Technical Field
The utility model relates to an engineering protection technical field especially relates to a protection airtight gate valve of wall tuber pipe.
Background
According to relevant regulations of civil defense law in China, civil air defense needs in wartime must be considered during subway engineering construction. The civil air defense system in the urban subway is an extremely important component in urban civil air defense, and the underground railway construction needs to meet the air defense requirements of people, so that peacetime and war combination and comprehensive utilization are realized.
When pipelines such as air pipes penetrate through the airtight partition wall between the protection units or face the empty wall, plate-type protective airtight plugging plates or protective airtight doors are generally adopted for battle plugging, and the two schemes have the following defects:
(1) the plate-type protective closed plugging plate is used for battle plugging, the plugging plate needs to be stored independently when being flat, and facilities such as air pipes need to be removed in battle conversion, which is time-consuming and labor-consuming.
(2) Adopt protective airtight door to carry out the shutoff of just working, the door leaf is installed in the eminence at ordinary times, and the security is relatively poor, and the conversion of wartime needs the operation of ascending a height, also need demolish facilities such as tuber pipe, consuming time power, and difficult operation.
In order to realize quick peacetime conversion and improve the operability of products, the development of the protective airtight gate valve with the air pipe penetrating through the protective airtight partition wall has practical significance, the space can be saved for peacetime functions, and the facilities such as the air pipe do not need to be dismantled in wartime.
SUMMERY OF THE UTILITY MODEL
The utility model provides a need not ann and tear open, it is convenient to use, labour saving and time saving, the airtight push-pull valve of protection of wall tuber pipe is worn to the leakproofness is good.
The technical problem to be solved is that: the traditional plugging structure has complex mounting and dismounting procedures, wastes time and labor, and has poor safety, poor construction convenience and high difficulty.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the utility model discloses a protective airtight gate valve of a through-wall air duct, which comprises a box body, an airtight cover plate component arranged in the box body and a driving component for driving the airtight cover plate component to open or close;
the box body comprises a connecting pipe body and an equipment box which are mutually communicated, openings at two ends of the connecting pipe body are respectively connected and sealed with a wall-penetrating pipe fitting and an air pipe which are pre-embedded in a wall body, the equipment box is positioned at one side of the connecting pipe body and is of a cuboid box body structure with an opening at one end, and the opening end is matched with and communicated with the side wall of the connecting pipe body; the equipment box is formed by enclosing oppositely arranged cover plates, plugging plates positioned between adjacent cover plates and end plates, the plugging plates are aligned with two opposite side walls of the connecting pipe body and connected into an integral wall plate, and a guide slideway, a high-position slideway and a low-position slideway are sequentially arranged on the inner surface of the integral wall plate towards the direction of the wall-penetrating pipe fitting;
the sealing cover plate assembly comprises a sealing flashboard matched with the pipe orifice of the wall-penetrating pipe fitting and a sliding piece positioned on the surface of the sealing flashboard, the sliding piece is matched and arranged in a high-position slideway or a low-position slideway at two sides in a sliding manner, and the sealing flashboard is connected with the driving assembly through a connecting rod;
the driving assembly comprises a transmission assembly for outputting power and a guide assembly for adjusting the trend of the power, the transmission assembly comprises a transmission screw rod, an operating wheel arranged at the end part of the transmission screw rod and a base screwed on the transmission screw rod, the transmission screw rod is positioned between the guide slideway and the high-position slideway and arranged along the length direction of the guide slideway, one end of the transmission screw rod is rotatably connected on a wall plate of the box body, the other end of the transmission screw rod vertically penetrates through an end plate of the equipment box and then is fixedly connected with the operating wheel positioned on the outer side of the equipment box, one end of the connecting rod is rotatably connected with the base, and the;
the direction assembly includes deflector and the slip support piece that is located the deflector all around, and deflector one end is connected with the base, and the slip support piece slides and sets up in the direction slide.
The utility model discloses the airtight gate valve of protection of wall pipe, it is further, connecting body both ends opening part sets up annular rib respectively, and annular rib sets up along connecting body circumference level, is close to and is provided with joint strip on the annular rib of wall pipe fitting one side.
The utility model discloses the airtight push-pull valve of protection of wall tuber pipe, it is further, the inside cavity of annular rib encloses with the lateral wall of connecting tube body and closes formation longitudinal section and be square airtight cavity, is enclosed by corrosion resistant plate and closes and form, is close to the outside extension of wallboard level of connecting tube body mouth of pipe one side and forms flange, and wall pipe fitting or tuber pipe through bolt and both sides are connected fixedly.
The utility model discloses the airtight gate valve of protection of through-wall tuber pipe, it is further, joint strip is located the annular rib and keeps away from the wallboard of through-wall pipe fitting one side, along the circumference setting of connecting the body, and the mounting groove has been seted up on the annular rib surface that joint strip corresponds, and joint strip sets up in the mounting groove.
The utility model discloses the airtight gate valve of protection of wall tuber pipe, it is further, joint strip is the butyronitrile rubber strip of P shape for the cross-section, joint strip's horizontal plane and mounting groove bottom surface contact laminating to it is fixed with annular rib through the screw.
The utility model discloses the airtight slide valve of protection of wall tuber pipe, it is further, the apron internal surface is provided with the flame retardant coating, the flame retardant coating is the asbestos rubber board, fixes on the apron through the screw.
The utility model discloses the airtight push-pull valve of protection of wall tuber pipe, it is further, the direction slide sets up along the radial logical length of connecting the body, and on continuously extending to the lateral wall of connecting the body, high-order slide and low-order slide all include the straight section and the slant section of mutual intercommunication, and straight section sets up along the radial logical length of connecting the body, and on continuously extending to the lateral wall of connecting the body, the slant section is located the connecting tube lateral wall of straight section afterbody, straight section and slant section smooth transition intercommunication.
The utility model discloses the airtight flashboard valve of protection of wall tuber pipe, it is further, the slider is located one side of airtight flashboard towards the center department of equipment box, including setting up the central lug that puts at airtight flashboard central point, the symmetry sets up a pair of high-order slider and a pair of low-order slider in airtight flashboard both sides, and central lug rotates with connecting rod one end to be connected, and high-order slider is located the front end of the closed advancing direction of airtight flashboard, and the cooperation slides and sets up in the high-order slide of both sides, and low-order slider is located the closed advancing direction rear end of airtight flashboard, and the cooperation slides and sets up in the low-order slide of both sides.
The utility model discloses the airtight gate valve of protection of wall pipe, it is further, be provided with the asbestos rubber board between the faying face that flange and wall pipe fitting or tuber pipe are connected.
The utility model discloses the airtight slide valve of protection of wall tuber pipe compares with prior art, has following beneficial effect:
the utility model discloses can satisfy the pipeline such as tuber pipe and pass through airtight partition wall between the protection unit or face the shutoff in wartime when empty wall, realize quick peacetime and war time conversion, simple structure, the simple operation need not the operation of ascending a height, and it is big to have avoided battle conversion work load, and conversion material demand is big, the long scheduling problem of conversion time, and the practicality is strong.
The utility model discloses set up the joint strip of P shape in the sealed department, it is good with the sealed flashboard laminating nature, the seal performance is high to joint strip has good leakproofness, wearability and high temperature resistant characteristic, long service life, and the junction all has the asbestos rubber board, not only has the leakproofness, has good fire prevention effect moreover, compromises people's air defense and fire control.
The utility model discloses a movement track of airtight flashboard removes along high-order slide and low-order slide, and the slide divides straight section and slant section to set up, both reserve for airtight apron subassembly and deposit and remove the space, can have the airtight shutoff that the conversion realized airtight apron subassembly again, and when airtight flashboard moved to slide slant section, airtight flashboard sticiss closely the joint strip step by step, realizes the airtight function of tuber pipe oral area.
The utility model discloses a firm box structure, not only provide mounting platform for other moving parts, the flange of its oral area can closely combine with the flange of wall pipe fitting and tuber pipe, it is convenient to set up, when need not the airtight closure, do not influence the normal use and the ventilation of tuber pipe, when needing interim shutoff, need not to dismantle tuber pipe and installation shutoff mechanism, only need rotate the operation wheel and can accomplish the shutoff, the construction work volume of shutoff has been reduced greatly, the shutoff efficiency is improved, extensive application demand has in subway civil air defense engineering, under the prerequisite of having the airtight function of protection concurrently, economic benefits has been improved, thereby promote war preparedness benefit and social, become the engineering project of profitable engineering and serve economic construction's carrier.
The protection airtight gate valve of the wall-through air duct of the present invention will be further described with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic structural view of a protective airtight gate valve of the wall-through air duct of the present invention;
fig. 2 is a schematic structural view of the open state of the shutter of the present invention;
FIG. 3 is a schematic view of a detailed structure of the portion A in FIG. 2, namely, a sealing rubber strip;
FIG. 4 is a schematic longitudinal cross-sectional view of the case;
FIG. 5 is a schematic cross-sectional view taken along line X-X in FIG. 4;
FIG. 6 is a schematic view of the structure of the hermetic cover assembly;
FIG. 7 is a side view of the closure flap assembly of FIG. 6;
FIG. 8 is a schematic structural view of the transmission assembly;
FIG. 9 is a schematic view of a guide assembly;
fig. 10 is a schematic structural view of the closed state of the device.
Reference numerals:
11-wall penetrating pipe fittings; 12-air pipe; 2-connecting the pipe body; 21-an annular rib; 22-a connecting flange; 3-equipment box; 31-a cover plate; 32-plugging plate; 33-end plate; 4-sealing adhesive tape; 41-mounting groove; 42-screws; 43-a gasket; 51-a guide way; 52-high slide; 53-low slide; 61-closed gate plate; 62-a central lifting lug; 63-high slide; 64-low slide; 71-an operating wheel; 72-a drive screw; 73-a base; 8-connecting rod; 91-a guide plate; 92-sliding support.
Detailed Description
As shown in fig. 1 and 2, the protective airtight gate valve of the wall-through air duct of the present invention comprises a box body, an airtight cover plate assembly disposed in the box body, and a driving assembly for driving the airtight cover plate assembly to open or close; the openings at the two ends of the box body are respectively connected and sealed with the wall-through pipe fittings 11 and the air pipes 12 which are pre-embedded in the wall body through connecting flanges 22.
The wall-through pipe fitting 11 directly passes through the enclosed partition wall or the adjacent hollow wall between the protection units and is poured together with the wall body, and the wall-through pipe fitting 11 is provided with an enclosed wing ring at the center of the thickness of the wall body to play a role in protection and sealing.
As shown in fig. 4, the box body includes a connecting pipe body 2 and an equipment box 3 which are communicated with each other, the cross-sectional shape of the connecting pipe body 2 is consistent with that of the air pipe 12, the connecting pipe body is square in the embodiment, annular ribs 21 are respectively arranged at openings at two ends of the connecting pipe body 2, the annular ribs 21 are horizontally arranged along the circumferential direction of the connecting pipe body 2, the inner part of the annular ribs is hollow, and the annular ribs and the side wall of the connecting pipe body 2 enclose to form a closed cavity with a square longitudinal section, so that the strength of the connecting pipe body can be enhanced, the pipe body is prevented from being extruded and deformed, the connecting pipe body can be connected with a wall-penetrating pipe fitting 11 or the air pipe 12 in a tight thread joint manner, the; the annular rib 21 is formed by enclosing stainless steel plates, a wall plate close to one side of the pipe orifice of the connecting pipe body 2 extends horizontally outwards to form a connecting flange 22, and the connecting flange is fixedly connected with the wall-penetrating pipe fittings 11 or the air pipes 12 on two sides through bolts.
Asbestos rubber plates are arranged between the joint surfaces of the connecting flanges 22 and the wall-through pipe fittings 11 or the air pipes 12, and can effectively play roles in sealing and fire prevention.
As shown in fig. 3, a sealing rubber strip 4 is arranged on the annular rib 21 close to one side of the wall-penetrating pipe 11, the sealing rubber strip 4 is a nitrile rubber strip with a P-shaped cross section, the wall plate is arranged on the annular rib 21 far away from one side of the wall-penetrating pipe 11 and is arranged along the circumferential direction of the connecting pipe body 2, a mounting groove 41 is formed in the surface of the annular rib 21 corresponding to the sealing rubber strip 4, the sealing rubber strip 4 is arranged in the mounting groove 41, the horizontal surface of the sealing rubber strip 4 is in contact fit with the bottom surface of the mounting groove 41 and is fixed with the annular rib 21 through a screw 42, and a gasket 43 is further arranged between the screw 42 and the sealing rubber strip 4 to prevent; after the raised cylindrical rubber strip is contacted with the closed cover plate assembly, the sealing can be effectively realized, the sealing performance of the closed cover plate assembly is greatly improved, and meanwhile, the nitrile rubber has better wear resistance and high temperature resistance, long service life and good sealing effect; the integrative adhesive tape that sets up of P shape, horizontal plane and annular rib 21 screw 42 are connected, and the fastness of connection is good, does not destroy the structure of the cylindrical adhesive tape who plays sealed effect simultaneously, and the leakproofness is good.
As shown in fig. 4 and 5, the equipment box 3 is located on one side of the connecting pipe body 2 and has a rectangular box structure with an open end, the open end is matched with and communicated with the side wall of the connecting pipe body 2, the equipment box 3 is formed by enclosing oppositely arranged cover plates 31, blocking plates 32 located between the adjacent cover plates 31 and end plates 33, the cover plates 31 are aligned with and welded and fixed to the wall plate on one side of the annular rib 21 close to the center of the pipe body, and the blocking plates 32 are aligned with and welded and fixed to the corresponding pipe walls of the connecting pipe body 2 on both sides; the inner surface of the cover plate 31 is provided with a fireproof layer, the fireproof layer is made of asbestos rubber plates and is fixed on the cover plate 31 through screws 42, and the fireproof layer has sealing and fireproof functions; the inner surface of the plugging plate 32 is sequentially provided with a guide slideway 51, a high-position slideway 52 and a low-position slideway 53 towards the direction of the wall-through pipe fitting 11, the guide slideway 51 is arranged along the radial through length of the connecting pipe body 2 and continuously extends to the side wall of the connecting pipe body 2, the high-position slideway 52 and the low-position slideway 53 respectively comprise a straight section and an oblique section which are mutually communicated, the straight section is arranged along the radial through length of the connecting pipe body 2 and continuously extends to the side wall of the connecting pipe body 2, the oblique section is positioned on the side wall of the connecting pipe body 2 at the tail part of the straight section, and the straight section is in smooth transition communication with the oblique section; the angle between the oblique section and the straight section is consistent, is 160-plus-170 degrees, not only leaves enough storage and moving space for the sealed cover plate assembly, but also can realize the sealed plugging of the sealed cover plate assembly without conversion.
As shown in fig. 6 and 7, the closing cover plate assembly comprises a closing shutter 61 matched with the pipe orifice of the through-wall pipe 11 and a sliding member positioned on the surface of the closing shutter 61, the sliding member is positioned on one side of the closing shutter 61 facing the center of the equipment box 3, the sliding member comprises a central lifting lug 62 arranged at the center of the closing shutter 61, a pair of high-level sliding members 63 and a pair of low-level sliding members 64 symmetrically arranged at two sides of the closing shutter 61, the central lifting lug 62 is connected with the driving assembly through a connecting rod 8, and the central lifting lug 62 is rotatably connected with one end of the connecting rod 8; the high-position sliding piece 63 is positioned at the front end of the closed advancing direction of the closed gate board 61 and is arranged in the high-position slideways 52 on the two sides in a matched and sliding manner, the low-position sliding piece 64 is positioned at the rear end of the closed advancing direction of the closed gate board 61 and is arranged in the low-position slideways 53 on the two sides in a matched and sliding manner, when the driving assembly drives the closed gate board 61 to move through the connecting rod 8, the sliding pieces on the periphery can slide in the slideways, so that the moving friction force of the closed gate board 61 is reduced, and the opening or closing process of the; the sliding part can be a moving wheel and a bearing, and can be matched with the sliding way to move so as to reduce friction force.
The driving assembly comprises a transmission assembly for outputting power and a guide assembly for controlling the direction of the power, as shown in fig. 8, the transmission assembly comprises a transmission screw rod 72, an operating wheel 71 arranged at the end part of the transmission screw rod 72 and a base 73 screwed on the transmission screw rod 72, the transmission screw rod 72 is positioned in the equipment box 3, positioned between the guide slideway 51 and the high-position slideway 52 and arranged along the length direction of the guide slideway 51, one end of the transmission screw rod 72 is fixed on the wall plate of the box body through a bearing assembly, and the other end of the transmission screw rod 72 vertically penetrates through an end plate 33 of the equipment box 3 and then is fixedly connected with the operating wheel 71 positioned outside the equipment box 3 and is rotatably connected with the end plate 33; the side wall of the base 73 is rotatably connected with one end of the connecting rod 8, and the adjacent side is fixedly connected with the guide assembly through a bolt; by rotating the operating wheel 71, the transmission screw 72 can be driven to rotate around the axis, so that the rotary motion of the transmission screw 72 is converted into the linear reciprocating motion of the base 73, and the base 73 drives the connecting rod 8 to move, so as to drive the closed shutter 61 to open or close.
The operation wheel 71 is a hand wheel or a chain wheel and can be rotated by hand, when the protective airtight flashboard 61 valve is installed at a high position, the transmission screw rod 72 can be driven to rotate on the ground through the chain wheel, so that the airtight flashboard 61 is closed or opened, the high-altitude operation is avoided, and the operation efficiency and the operation convenience are improved.
As shown in fig. 9, the guiding assembly includes a guiding plate 91 and a sliding support 92 located around the guiding plate 91, the guiding plate 91 is a stainless steel plate adapted to the width of the equipment box 3, a mounting portion is formed by horizontally protruding one side edge close to the operating wheel 71 and detachably connected to the base 73 through a bolt, the sliding support 92 is a circular roller guide bearing and is slidably disposed in the guiding slideway 51, and when the base 73 moves, the supporting and guiding functions are achieved.
The utility model discloses airtight method of airtight slide valve of protection of wall tuber pipe, including following step:
step one, rotating the operating wheel 71 to drive the transmission screw rod 72 to rotate around the axis of the transmission screw rod, enabling the base 73 to generate a movement trend, enabling the guide plate 91 fixedly connected with the base 73 to slide towards the connecting pipe body 2 along the guide slideway 51, and enabling the base 73 to slide towards the connecting pipe body 2 along the transmission screw rod 72;
step two, the base 73 drives the closed gate plate 61 to slide towards the connecting pipe body 2 in the box body slide way through the connecting rod 8, and the high-position sliding piece 63 and the low-position sliding piece 64 both slide towards the connecting pipe body 2 in the straight line section of the slide way;
the airtight flashboard 61 is positioned in the equipment box 3 at first, and a certain space is reserved between the airtight flashboard and the cover plate 31 of the equipment box 3, so that the airtight flashboard is convenient to store and move, and gradually moves to the position above the plugging pipe orifice in the inner connecting pipe body 2 along with the sliding along the straight line section;
and step three, the high-position sliding piece 63 and the low-position sliding piece 64 simultaneously start to enter the inclined section, the closed gate plate 61 approaches to the pipe orifice of the connecting pipe body 2 along the inclined section, and when the closed gate plate slides to the end part of the inclined section, the plate surface of the closed gate plate 61 is in contact with and pressed on the sealing rubber strip 4, so that the connecting pipe body 2 is plugged, and the state shown in fig. 10 is completed.
The above-mentioned embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.
Claims (9)
1. Airtight slide valve of protection of wall tuber pipe, its characterized in that: the device comprises a box body, a closed cover plate assembly and a driving assembly, wherein the closed cover plate assembly is arranged in the box body;
the box body comprises a connecting pipe body (2) and an equipment box (3) which are mutually communicated, openings at two ends of the connecting pipe body (2) are respectively connected and sealed with a wall-penetrating pipe fitting (11) and an air pipe (12) which are pre-embedded in a wall body, the equipment box (3) is positioned on one side of the connecting pipe body (2) and is of a cuboid box body structure with an opening at one end, and the opening end is matched with and communicated with the side wall of the connecting pipe body (2); the equipment box (3) is formed by enclosing oppositely arranged cover plates (31), plugging plates (32) positioned between adjacent cover plates (31) and end plates (33), the plugging plates (32) are aligned with two opposite side walls of the connecting pipe body (2) and connected into an integral wall plate, and a guide slideway (51), a high-position slideway (52) and a low-position slideway (53) are sequentially arranged on the inner surface of the integral wall plate towards the direction of the wall-penetrating pipe fitting (11);
the closed cover plate assembly comprises a closed gate plate (61) matched with a pipe orifice of the wall-penetrating pipe fitting (11) and a sliding piece positioned on the surface of the closed gate plate (61), the sliding piece is matched and arranged in a high-position slideway (52) or a low-position slideway (53) at two sides in a sliding manner, and the closed gate plate (61) is connected with the driving assembly through a connecting rod (8);
the driving assembly comprises a transmission assembly for outputting power and a guide assembly for adjusting the trend of the power, the transmission assembly comprises a transmission screw rod (72), an operating wheel (71) arranged at the end part of the transmission screw rod (72) and a base (73) screwed on the transmission screw rod (72), the transmission screw rod (72) is positioned between the guide slideway (51) and the high-position slideway (52) and arranged along the length direction of the guide slideway (51), one end of the transmission screw rod is rotatably connected to a wall plate of the box body, the other end of the transmission screw rod vertically penetrates through an end plate (33) of the equipment box (3) and then is fixedly connected with the operating wheel (71) positioned on the outer side of the equipment box (3), one end of the connecting rod (8) is rotatably connected with the base (73), and the other end of the connecting;
the direction assembly includes deflector (91) and is located deflector (91) sliding support piece (92) all around, and deflector (91) one end is connected with base (73), and sliding support piece (92) slide setting is in direction slide (51).
2. The protective airtight gate valve of the through-wall air duct according to claim 1, characterized in that: the wall-penetrating pipe is characterized in that annular ribs (21) are respectively arranged at openings at two ends of the connecting pipe body (2), the annular ribs (21) are horizontally arranged along the circumferential direction of the connecting pipe body (2), and sealing rubber strips (4) are arranged on the annular ribs (21) close to one side of the wall-penetrating pipe (11).
3. The protective airtight gate valve of the through-wall air duct according to claim 2, characterized in that: the annular rib (21) is hollow inside and is enclosed with the side wall of the connecting pipe body (2) to form a closed cavity with a square longitudinal section, the closed cavity is formed by enclosing a stainless steel plate, a wall plate close to one side of the pipe orifice of the connecting pipe body (2) extends horizontally outwards to form a connecting flange (22), and the connecting flange is fixedly connected with wall penetrating pipe fittings (11) or air pipes (12) on two sides through bolts.
4. The protective airtight gate valve of the through-wall air duct according to claim 3, characterized in that: sealing rubber strip (4) are located annular rib (21) and keep away from the wallboard of wall pipe fitting (11) one side, along the circumference setting of connecting tube body (2), and mounting groove (41) have been seted up on annular rib (21) surface that sealing rubber strip (4) correspond, and sealing rubber strip (4) set up in mounting groove (41).
5. The protective airtight gate valve of the through-wall air duct according to claim 4, characterized in that: the sealing rubber strip (4) is a butyronitrile rubber strip with a P-shaped section, and the horizontal surface of the sealing rubber strip (4) is in contact fit with the bottom surface of the mounting groove (41) and is fixed with the annular rib (21) through a screw (42).
6. The protective airtight gate valve of the through-wall air duct according to claim 1, characterized in that: the fireproof layer is arranged on the inner surface of the cover plate (31), is made of asbestos rubber and is fixed on the cover plate (31) through screws (42).
7. The protective airtight gate valve of the through-wall air duct according to claim 1, characterized in that: the direction slide (51) are along the radial logical length setting of connecting body (2) to on continuously extending to the lateral wall of connecting body (2), high-order slide (52) and low-order slide (53) all include the straight section and the slant section of mutual intercommunication, the straight section is along the radial logical length setting of connecting body (2), and continuously extend to on the lateral wall of connecting body (2), the slant section is located the connecting body (2) lateral wall of straight section afterbody, straight section and slant section smooth transition intercommunication.
8. The protective airtight gate valve of the through-wall air duct according to claim 1, characterized in that: the sliding piece is located on one side, facing the center of the equipment box (3), of the closed gate board (61), and comprises a center lifting lug (62) arranged at the center of the closed gate board (61), a pair of high-position sliding pieces (63) and a pair of low-position sliding pieces (64) symmetrically arranged on two sides of the closed gate board (61), wherein the center lifting lug (62) is rotatably connected with one end of a connecting rod (8), the high-position sliding pieces (63) are located at the front end of the closed advancing direction of the closed gate board (61) and are arranged in high-position slideways (52) on two sides in a matched sliding mode, the low-position sliding pieces (64) are located at the rear end of the closed advancing direction of the closed gate board (61) and are arranged in the low-position.
9. The protective airtight gate valve of the through-wall air duct according to claim 3, characterized in that: and an asbestos rubber plate is arranged between the joint surfaces of the connecting flange (22) and the wall-through pipe fitting (11) or the air pipe (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922011338.8U CN211008712U (en) | 2019-11-20 | 2019-11-20 | Protective closed gate valve of wall-through air pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922011338.8U CN211008712U (en) | 2019-11-20 | 2019-11-20 | Protective closed gate valve of wall-through air pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211008712U true CN211008712U (en) | 2020-07-14 |
Family
ID=71475505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922011338.8U Expired - Fee Related CN211008712U (en) | 2019-11-20 | 2019-11-20 | Protective closed gate valve of wall-through air pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211008712U (en) |
-
2019
- 2019-11-20 CN CN201922011338.8U patent/CN211008712U/en not_active Expired - Fee Related
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