CN212081281U - Board-inserting type smoke isolating door - Google Patents

Abstract

The utility model discloses a flashboard type flue gas isolation door, which comprises a rectangular door frame and a flashboard door, wherein the rectangular door frame is divided into a sealed door frame and a track frame, the two ends of the sealed door frame are connected with the inlet end and the outlet end of a rectangular flue and are sealed, the track frame is used for accommodating the flashboard door to be drawn out, a long through hole for the flashboard door to move linearly is arranged on the transverse partition of the two frames, and a driving mechanism for drawing and inserting the flashboard door is arranged on the rectangular door frame; a movable rectangular frame used for moving along the direction of the inlet and the outlet of the flue is arranged in the sealing frame, a frame type baffle plate which is pressed against an inserting plate door at the end face of the outlet end of the movable rectangular frame to seal is arranged in a sealing door frame connected with the outlet end of the flue, and a driving mechanism which enables the movable rectangular frame to move along the direction of the inlet and the outlet of the flue is arranged on the sealing frame; the inlet end of the movable rectangular frame and the inlet end of the sealing frame are provided with elastic sealing structures. The inserting plate type smoke isolating door can be applied to a high-temperature environment, is high in strength, low in failure rate and relatively simple in sealing structure.

Description

Board-inserting type smoke isolating door

Technical Field

The utility model relates to a flue equipment technical field of thermal power factory specifically says to an isolated door of picture peg formula flue gas.

Background

Because of the needs of regularly and irregularly checking and maintaining equipment, all be equipped with the flue gas isolation door between the play flue of thermal power factory and other equipment. The isolation door is also called as an isolation door, or an isolation door or a heat insulation gate plate door. The isolation door is roughly divided into a plug board door and a flap board door, the cross section of a flue of the plug board door or an air channel is circular, namely the plug board door is provided with a circular door frame, but the plug board door is generally rectangular, namely a rectangular door frame is adopted to be matched with a rectangular door.

Along with the promotion of environmental protection projects such as desulfurization of thermal power factory is out of stock, isolated flue gas is always big difficult problem in this system equipment, because of having a large amount of toxic gas and high temperature gas in the flue gas, if close not tight, can cause very big hidden danger to personal safety. And because the flue gas passageway is very big, if big isolation door has more than 100 square meters, because the installation environment is very poor, it is sealed tight more difficult to the isolation door.

The inserting plate type smoke isolation door in the prior art is various in types and different in structure. However, the respective disadvantages exist, if the temperature of an application scene is relatively high, the requirement on the strength of the isolation door is relatively high, if flexible material sealing is still adopted, and the sealing structure of the flashboard door in the prior art is generally in a static state, the durability is poor, the flashboard door is easy to wear, the failure rate is relatively high, and the service life is short. In addition, the sealing structure of the inserting plate type smoke isolating door in the prior art is relatively complex. In addition, the pulling and inserting structure of the inserting plate door in the prior art is relatively complex, and the material cost and the labor cost for installation and maintenance are not ideal, and the starting flexibility and the working reliability are not ideal.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide an isolated door of picture peg formula flue gas that can be applied to high temperature environment, intensity height and seal structure are simple relatively.

The technical solution of the utility model is to provide a plugboard type smoke isolation door, which comprises a sealing door frame and a plugboard door, and also comprises a holding device of the plugboard door, wherein the holding device is connected with the sealing door frame and is used for holding the plugboard door; the two ends of the sealing door frame are connected and sealed with the inlet end and the outlet end of the annular flue, a long through hole for the linear movement of the inserting plate door is arranged on the transverse partition of the sealing door frame and the accommodating device, and a driving mechanism for drawing and inserting the inserting plate door is arranged on the accommodating device and the sealing door frame; a movable annular frame used for moving along the direction of the inlet and the outlet of the flue is arranged in the sealing door frame, a driving mechanism used for enabling the movable annular frame to move along the direction of the inlet and the outlet of the flue is arranged on the sealing door frame, and a frame type baffle plate used for blocking the inserting plate door pressed by the movable annular frame to abut against and seal is arranged in the sealing door frame connected with the outlet end of the flue; the inlet end of the movable annular frame and the inlet end of the sealing door frame are provided with elastic sealing structures.

After the structure above adopting, the utility model discloses the inserted plate formula flue gas isolation door has following advantage: this board-like isolated door of flue gas is applicable to the temperature and is high relatively (like about 100 ℃), require the relatively high occasion to isolated door intensity, this isolated door's sealed terminal surface oppression through activity ring frame exit end makes the board-like door and frame baffle offset and seal, there is not flexible material's seal structure, this seal structure can rigid seal structure, good sealed effect has both been guaranteed, it is good to have guaranteed isolated door temperature toleration again, isolated door intensity is high relatively, and the seal structure of board-like door is dynamic, when needing to take out or insert the board door, throw off frame baffle with activity ring frame, when needing to seal, compress tightly the upper surface of board-like door with this terminal surface of activity ring frame, and make the lower surface of board-like door and frame baffle support tightly in order to seal. The elastic sealing structure of the inlet end of the movable annular frame and the inlet end of the sealing door frame can ensure that smoke, smoke mixture, dust and the like cannot enter between the movable annular frame and the sealing door frame when the inserting plate door is opened or the pipe is closed. The inserting plate type smoke isolation door is good in sealing effect, strong in durability, not prone to abrasion, low in failure rate, long in service life, simple in sealing structure, good in starting flexibility and strong in working reliability, and saves material cost and manual installation and maintenance cost.

Furthermore, the structure of the driving mechanism which enables the movable annular frame to move along the inlet and outlet direction of the flue is as follows: a plurality of first driving cylinders which act synchronously are arranged on the outer side of the sealing door frame, and a cam component used for driving the movable annular frame to move along the inlet and outlet directions of the flue is hinged to the free end of a first driving rod of each first driving cylinder. After the structure is adopted, the movable annular frame driving mechanism or the pressing mechanism is simple in structure, the material cost and the manual installation and maintenance cost are further saved, the pressing or releasing starting flexibility is good, and the working reliability is high.

Furthermore, two outer sides of the sealing door frame are respectively provided with two first driving cylinders, the free end of a first driving rod of each first driving cylinder is hinged with one end of a connecting arm, the other end of the connecting arm is fixed with a rotating shaft which is in rotating fit with the sealing door frame, the inner end of the rotating shaft penetrating through the sealing door frame is provided with a cam which can stir a first shifting block and drive the movable annular frame to move towards the inlet end of the sealing door frame so as to separate from the inserting plate door or stir a second shifting block and drive the movable annular frame to move towards the outlet end of the sealing door frame so as to press the inserting plate door on the frame type baffle, and the first shifting block and the second shifting block are both fixed on the outer wall of one corner of four corners of the movable. After this activity annular frame actuating mechanism or hold-down mechanism adopted above concrete structure, the simple structure of cam and the shifting block of mutually supporting, four movable jar synchronization actions, four angles of control activity rectangle frame compress tightly or throw off, start the flexibility good, and the operational reliability is strong.

Further, the elastic sealing structure of the inlet end of the movable annular frame and the inlet end of the sealing door frame is as follows: the inner edge of the stainless steel corrugated plate which is inclined upwards and inwards and downwards is fixed and sealed with the top of the inlet end of the movable annular frame, and the outer edge of the stainless steel corrugated plate is fixed and sealed with the top of the inlet end of the sealing door frame. After adopting above concrete structure, this picture peg formula flue gas isolation door is guaranteeing that high temperature resistance can further guarantee good sealed effect under the prerequisite of guaranteeing high strength.

Furthermore, the accommodating device for accommodating the drawn-out inserting plate door is a rectangular track frame, the sealing door frame is a rectangular sealing door frame, the rectangular track frame and the rectangular sealing door frame form an integral rectangular door frame connected by a transverse partition, the movable annular frame is a movable rectangular frame, and the inserting plate door is a rectangular inserting plate door. After the structure is adopted, the track frame and the sealing door frame can be an integral frame which is divided into two sections by a transverse partition, and the rectangular sealing door frame, the movable rectangular frame and the rectangular inserting plate door can adapt to the shape of the universal rectangular section of the flue, so that the good sealing effect and the flexibility of operation of the rectangular flue are ensured.

Furthermore, the sealing door frame is a door frame with a rectangular half close to the track frame and a semicircular half far away from the track frame; the movable annular frame is a movable rectangular frame which is the half close to the track frame, and a movable semicircular frame which is the half far away from the track frame; the half of the inserting plate door close to the track frame is a rectangular door, and the half of the inserting plate door far away from the track frame is a semicircular door. After adopting above structure, both guaranteed good sealed effect and the flexibility of operation, can adapt to the needs of other cross-sectional shapes of flue again.

Further, the first specific structure of the driving mechanism of the drawer inserting plate door is as follows: a pair of friction rollers which are used for clamping the inserting plate door on two sides and driving the inserting plate door to move linearly are arranged at the position, close to the transverse partition, of the track frame, two friction roller shafts are rotatably connected to two side frames of the track frame, one end of each of the two friction roller shafts, which extends out of the track frame, is provided with a gear, and the two gears are meshed with each other; the other end of one of the friction roll shafts, which extends out of the track frame, is coaxially connected with a first output shaft of a first rotary driving device fixed on the track frame at the other end; the frame of the track frame is internally provided with a guide rail for the linear movement of the extracted inserting plate door. After the structure above the adoption, this picture peg door take out and insert simple structure, and material cost and installation cost are saved relatively, take out and insert the process all simple nimble, start or close and receive influences such as dust little, should be to the drive simple structure of friction roller, the fault rate is little, and operational reliability is stronger, starts or closes operational reliability and is strong.

Further, the second specific structure of the driving mechanism of the drawer door is as follows: and the track frame far away from the sealing door frame is provided with at least one second driving cylinder, and the free end of a second driving rod of the second driving cylinder is hinged with one end of the inserting plate door extending into the track frame. After the structure is adopted, the material cost and the installation cost are relatively saved, the processes of drawing and inserting are simple and flexible, the starting or closing is slightly influenced by dust and the like, the failure rate is low, and the reliability of the starting or closing work is high; compared with the first type, the drawing and inserting structure of the inserting plate door is simpler and is suitable for the use scene that the drawing or inserting distance is relatively short, such as about 3 meters per pass.

Further, the third specific structure of the driving mechanism of the drawer-type inserting plate door is as follows: and the track frame far away from the sealing door frame is provided with at least one second rotary driving device, a second output shaft of the second rotary driving device is coaxially connected with a screw rod of which one end penetrates through the frame, and the other end of the screw rod is screwed with a nut fixed at one end of the inserting plate door extending into the track frame. After the structure is adopted, the pulling and inserting structure of the inserting plate door is simple, the material cost and the installation cost are relatively saved, the pulling and inserting process is simple and flexible, the starting or closing is slightly influenced by dust and the like, the failure rate is low, and the starting or closing work reliability is high.

Further, the fourth specific structure of the driving mechanism of the drawer door is as follows: the rail frame far away from the sealing door frame is provided with at least one first hoisting device, one end of a first cable is fixed on a first hoisting wheel of the first hoisting device, and the other end of the first cable is fixed on one end of the inserting plate door extending into the rail frame; the sealing door frame far away from the track frame is provided with at least one second hoisting device which synchronously acts with the first hoisting device, a second hoisting wheel of the second hoisting device is fixed with one end of a second cable, the other end of the second cable is fixed at one end of the inserting plate door far away from the track frame, and the first cable and the second cable are coaxial. After the structure is adopted, the material cost and the installation cost are relatively saved, the processes of drawing and inserting are simple and flexible, the starting or closing is slightly influenced by dust and the like, the failure rate is low, and the reliability of the starting or closing work is high; compared with the three driving structures, the driving structure of the inserting plate door has relatively large pulling force, and is suitable for the use scene with relatively large weight of the inserting plate door.

Furthermore, a first supporting seat of the first hoisting device is fixed on the track frame far away from the sealing door frame, a third rotary driving device is arranged on one side of the first supporting seat, a third output shaft of the third rotary driving device is coaxially connected with the first hoisting shaft, two ends of the first hoisting shaft are rotatably connected on the first supporting seat, and a first hoisting wheel is coaxially fixed on the first hoisting shaft; the second supporting seat of the second hoisting device is fixed on the sealing door frame far away from the track frame, a fourth rotary driving device is arranged on one side of the second supporting seat, a fourth output shaft of the fourth rotary driving device is coaxially connected with the second hoisting shaft, two ends of the second hoisting shaft are rotatably connected onto the second supporting seat, and the second hoisting wheel is coaxially fixed on the second hoisting shaft. After the structure is adopted, the first hoisting device and the second hoisting device are relatively compact in structure, high in working reliability, good in stability and relatively large in pulling force, and are suitable for use scenes with relatively large weight of the inserting plate door.

Drawings

Fig. 1 is a schematic perspective view of a first embodiment of a driving mechanism for a drawer door in a drawer type smoke isolation door of the present invention (hereinafter referred to as a driving mechanism for a drawer door in an isolation door).

Fig. 2 is a schematic perspective view of the rear surface of the insulated door of fig. 1.

Fig. 3 is a schematic view of an exploded structure of the insulated door of fig. 1.

Fig. 4 is a front cross-sectional structural schematic view of a first embodiment of a driving mechanism for a drawer door in the isolation door.

Fig. 5 is a schematic top view of the driving mechanism of the inserting and pulling door in the isolation door according to the first embodiment.

Fig. 6 is a front cross-sectional structural view of a second embodiment of a driving mechanism for a drawer door of the insulated door.

Fig. 7 is a schematic top view of a second embodiment of a driving mechanism for a drawer door of the isolation door.

Fig. 8 is a front cross-sectional structural view of a third embodiment of a driving mechanism for a drawer door in an insulated door.

Fig. 9 is a schematic top view of a third embodiment of a driving mechanism for a drawer door of an insulated door.

Fig. 10 is a front cross-sectional structural view of a fourth embodiment of a driving mechanism for a drawer door in an insulated door.

Fig. 11 is a schematic top view of a driving mechanism for a drawer door of the insulated door according to a fourth embodiment.

Shown in the figure are 1, stainless steel corrugated plate, 2, movable rectangular frame inlet end, 3, movable rectangular frame, 4, inserting plate door, 5, transverse partition, 6, track frame, 7, rectangular door frame, 8, gear, 9, first driving cylinder, 10, first driving rod, 11, sealing door frame, 12, friction roller shaft, 13, guide rail, 14, friction roller, 15, first rotary driving device, 16, frame baffle, 17, movable rectangular frame outlet end, 18, first shifting block, 19, cam, 20, second shifting block, 21, rotating shaft, 22, sealing door frame inlet end, 23, sealing door frame outlet end, 24, connecting arm, 25, inserting plate door end deep into track frame, 26, second driving rod, 27, second driving cylinder, 28, track frame far from sealing door frame, 29, elongated through hole, 30, second rotary driving device, 31, screw, 32, nut, 33, elongated through hole, and the like, The first hoisting wheel, 34, the first hoisting device, 35, the first supporting seat, 36, the third rotary driving device, 37, the first hoisting shaft, 38, the first cable, 39, the second cable, 40, the second supporting seat, 41, the second hoisting device, 42, the second hoisting shaft, 43, the fourth rotary driving device, 44, the second hoisting wheel, 45, the sealing door frame far away from the track frame, 46, the one end of the inserting plate door far away from the track frame.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding the present invention, but the present invention is not limited thereto. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

As shown in fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, and 11.

The utility model discloses the board-inserting flue gas isolation door, including sealed door frame 11 and board-inserting door 4. The utility model discloses the isolated door of picture peg formula flue gas still includes the holding device of picture peg door 4 taken out with the holding that sealed door frame 11 is connected. And two ends of the sealing door frame 11 are connected and sealed with the inlet end and the outlet end of the annular flue. The transverse partition 5 of the sealing doorframe 11 and a rectangular rail frame 6, which is described below, is provided with an elongated through hole 29 through which the inserting plate door 4 moves linearly. The receiving device is provided with a driving mechanism for inserting and pulling the inserting plate door 4 on a rectangular track frame 6 and a sealing door frame 11 which are described below. A movable annular frame for moving along the inlet and outlet direction of the flue is arranged in the sealing door frame 11, and a driving mechanism for driving the movable annular frame to move along the inlet and outlet direction of the flue is arranged on the sealing door frame 11. The sealing door frame 11 connected with the outlet end of the flue is internally provided with a frame type baffle 16 which blocks the inserting plate door 4 pressed by the movable annular frame to tightly abut and seal. The accommodating device for accommodating the drawn-out inserting plate door 4 can also be a support frame with a guide rail, or a platform without a guide rail, and the like.

The annular flue is generally a rectangular flue. The accommodating device for accommodating the drawn-out inserting plate door 4 is preferably a rectangular track frame 6, the sealing door frame 11 is a rectangular sealing door frame, the rectangular track frame 6 and the rectangular sealing door frame 11 form an integral rectangular door frame 7 connected by a transverse partition 5, the movable annular frame is preferably a movable rectangular frame 3, and the inserting plate door 4 is preferably a rectangular inserting plate door 4.

This paragraph expands again on the above: the rectangular door frame 7 is divided into a sealing door frame 11 and a track frame 6, wherein the two ends of the sealing door frame are connected with the inlet end and the outlet end of the rectangular flue and are sealed, and the track frame 6 is used for accommodating the drawn inserting plate door 4. It will be appreciated that the inlet end of the rectangular flue is connected to the inlet end 22 of the sealing doorframe and the outlet end of the rectangular flue is connected to the outlet end 23 of the sealing doorframe. The sealing can be realized by locking the flanges through a plurality of bolts and nuts, and the contact surfaces of the two flanges can be sealed by packing and other sealing materials. The sealing doorframe 11 may also be referred to as a valve doorframe. The transverse partition 5 of the two frames, i.e. the sealing door frame 11 and the track frame 5, is provided with an elongated through hole 29 for the linear movement of the inserting plate door 4, and the elongated through hole 29 can also be called a flat elongated through hole. A movable rectangular frame 3 which is used for moving along the direction of the inlet and the outlet of the flue is arranged in the sealing door frame 11, and the movable rectangular frame 3 can also be called as a sealing pressing sleeve. A frame type baffle 16 which is pressed against the inserting plate door 4 pressed by the end face of the outlet end 17 of the movable rectangular frame to seal is arranged in the sealing door frame connected with the outlet end of the flue, and a driving mechanism which enables the movable rectangular frame 3 to move along the inlet and outlet directions of the flue is arranged on the sealing door frame 11. The structure of the driving mechanism for moving the movable annular frame such as the movable rectangular frame 3 along the inlet and outlet direction of the flue is preferably as follows: a plurality of first driving cylinders 9 which act synchronously are arranged outside the sealing doorframe 11. The free end of the first driving rod 10 of each first driving cylinder 9 is hinged with a cam component for driving the movable rectangular frame 3 to move along the inlet and outlet direction of the flue.

Two first driving cylinders 9 are respectively arranged on the two outer sides of the sealing doorframe 11. The specific structure of the cam component is preferably as follows: the free end of the first driving rod 10 of each first driving cylinder 9 is hinged with one end of a connecting arm 24, the other end of the connecting arm 24 is fixed with a rotating shaft 21 which is rotatably matched on the sealing door frame 11, a cam 19 which can shift the first shifting block 18 and drive the movable rectangular frame 3 to move towards the sealing door frame inlet end 2 so as to separate the inserting plate door 4 or shift the second shifting block 20 and drive the movable rectangular frame 3 to move towards the sealing door frame outlet end 23 so as to press the inserting plate door 4 on the frame type baffle 16 is arranged at one end of the sealing door frame 11, namely the inner end of the rotating shaft 21, and the first shifting block 18 and the second shifting block 20 are both fixed on the outer wall of one of four corners of the movable rectangular frame 3. The cam assembly described above may also be referred to as a bidirectional cam motion mechanism. The first driving rod 10 is hinged to one end of the connecting arm 24, a U-shaped groove may be formed at the end of the connecting arm 24, a flat block at the end of the first driving rod 10 is inserted into the U-shaped groove, coaxial through holes are formed at the end of the connecting arm 24 and the end of the first driving rod 10, and a cotter pin or a bolt with a nut is rotatably fitted in the through holes. It will be understood that the four first actuating cylinders 9 are arranged two on each side, and that the orientation of the respective first pusher arms 10 of the two first actuating cylinders on each side is reversed, extending towards each of the four corners. In other words, each cam assembly is located at a respective one of the four corners. Also, it will be understood that the rotational fit may be such that the shaft 21 is movably received in respective bearing housings provided with sliding bearings, i.e., bushings. The end of the cylinder body of each first driving cylinder 9 remote from the first pushing rod 10 may be hinged on the outside of the sealing doorframe 11.

While the track frame 6 and the sealing doorframe 11 described above are provided with the driving mechanism for the drawer panel door 4, it should be understood that the rectangular doorframe 7 is provided with the driving mechanism for the drawer panel door 4. Specifically, the sealing member may be provided on the rail frame 6, or may be provided on the rail frame 6 and the sealing doorframe 11 as shown in fig. 10 and 11.

The sealing door frame can be a door frame with a rectangular half part close to the track frame and a semicircular half part far away from the track frame; the movable annular frame can be a movable rectangular frame which is the half close to the track frame and a movable semicircular frame which is the half far away from the track frame; the inserting plate door can be a rectangular door close to the half of the track frame and a semicircular door far away from the half of the track frame. The annular flue also has a circular flue. (the technical features of this paragraph are not shown in the figure).

The movable rectangular frame inlet end 2 and the sealing door frame inlet end 22 have elastic sealing structures: the inner edge of the stainless steel corrugated plate 1 which is inclined upwards and inwards and downwards is fixed and sealed with the top of the movable rectangular frame inlet end 2, the outer edge of the stainless steel corrugated plate 1 is fixed and sealed with the top of the sealed door frame inlet end 22, and the fixing and sealing can be welding sealing or strong glue bonding sealing.

As shown in fig. 1, fig. 2, fig. 3, fig. 4, and fig. 5, the first embodiment of the driving mechanism for inserting the inserting plate door in the inserting plate type smoke isolating door of the present invention is: a pair of friction rollers 14 which are used for clamping the inserting plate door 4 on two sides and driving the inserting plate door 4 to move linearly are arranged at the position, close to the transverse partition wall 5, of the rectangular track frame 6, two friction roller shafts 12 are rotatably connected to two side frames of the track frame 6, one end, extending out of the track frame 6, of each of the two friction roller shafts 12 is provided with a gear 8, and the two gears 8 are meshed with each other. The other end of one of the friction roller shafts 12 extending out of the track frame 6 is connected to a driving power device, for example, the other end of one of the friction roller shafts 12 extending out of the track frame 6 is coaxially connected to a first output shaft (not shown) of a first rotary driving device 15 fixed to the track frame 6 at that end. The track frame 6 is provided with a guide rail 13 for the linear movement of the extracted inserting plate door 4. In other words, the first rotary drive device 15 is employed in the present embodiment as the drive circuit device for driving the friction roller shaft 12 to rotate.

As shown in fig. 6 and 7, the second embodiment of the driving mechanism for inserting the inserting plate door in the inserting plate type smoke isolating door of the present invention is: the rail frame 28 remote from the sealing door frame is provided with at least one second driving cylinder 27, and the free end of a second driving rod 26 of the second driving cylinder 27 is hinged with one end 25 of the inserting plate door extending into the rail frame. The specific structure of the hinge joint may be that the end of the second driving rod 26 has a U-shaped groove, the U-shaped groove is inserted into the end 25 of the inserting plate door extending into the track frame, the end of the second driving rod 26 and the end of the inserting plate door have coaxial through holes, and a cotter pin or a bolt with a nut is rotatably fitted in the through holes.

As can be known from the general knowledge, the driving cylinder of the first driving cylinder 9 and the second driving cylinder 27 may be a hydraulic cylinder, such as an oil cylinder, or an air cylinder, or an electric push rod. The driving rod of the first driving rod 10 and the second driving rod 26 may be a push rod of a hydraulic cylinder, such as an oil cylinder, or a push rod of an air cylinder, or a push rod of an electric push rod.

As shown in fig. 8 and 9, the third embodiment of the driving mechanism for the inserting and pulling door of the present invention is: the track frame 28 remote from the sealed door frame is provided with at least one second rotary driving device 30, a second output shaft (not shown) of the second rotary driving device 30 is coaxially connected with a screw rod 31 with one end penetrating through the frame, and the other end of the screw rod 31 is screwed with a nut 32 fixed on one end 25 of the inserting plate door extending into the track frame. The screw 31 and nut 32 screwing structure can also be called a nut screw mechanism or a nut screw mechanism.

As shown in fig. 10 and 11, the fourth embodiment of the driving mechanism for the inserting and pulling door in the inserting and pulling type smoke isolating door of the present invention is: at least one first hoisting device 34 is arranged on the track frame 28 far away from the sealing door frame, one end of a first cable 38 is fixed on a first hoisting wheel 33 of the first hoisting device 34, and the other end of the first cable 38 is fixed on one end 25 of the inserting plate door extending into the track frame; at least one second hoisting device 41 which synchronously acts with the first hoisting device 34 is arranged on the sealing door frame 45 far away from the track frame, one end of a second guy rope 39 is fixed on a second hoisting wheel 44 of the second hoisting device 41, the other end of the second guy rope 39 is fixed on one end 46 far away from the track frame of the inserting plate door, and the first guy rope 38 and the second guy rope 39 are coaxial. The first support seat 35 of the first winding device 34 is fixed on the track frame 28 far away from the sealing door frame by screw connection, a third rotary driving device 36 is arranged on one side of the first support seat 35, a third output shaft (not shown in the figure) of the third rotary driving device 36 is coaxially connected with the first winding shaft 37, two ends of the first winding shaft 37 are rotatably connected on the first support seat 35, and the first winding wheel 33 is coaxially fixed on the first winding shaft 37. The second winding device 41 is fixed, for example, screwed on the sealing door frame 28 far away from the track frame, one side of the second support base 40 is provided with a fourth rotation driving device 43, a fourth output shaft (not shown in the figure) of the fourth rotation driving device 43 is coaxially connected with the second winding shaft 42, two ends of the second winding shaft 42 are rotatably connected on the second support base 40, and the second winding wheel 44 is coaxially fixed on the second winding shaft 42. The inhaul cable in the first inhaul cable and the second inhaul cable can also be called a rope, can be a nylon rope or a steel wire rope and the like, and the two ends of the inhaul cable can be fixed by screwing, gluing, welding and the like.

As is known in the art, the rotary driving device of the first rotary driving device, the second rotary driving device, the third rotary driving device, and the fourth rotary driving device may be a common motor, a stepping motor, a servo motor, or a multi-turn electric actuator. The rotary driving device can also be a rotary air cylinder. Electric motors are also known as motors.

It is not difficult to understand, the utility model discloses the isolated door of picture peg formula flue gas still can establish main control unit or title central processing unit like CPU, still can establish position sensor on the track frame 28 of keeping away from sealed door frame and on the sealed door frame 45 of keeping away from the track frame and on the frame baffle, and position sensor is connected with main control unit electricity. The main controller is electrically connected with a relay which controls the driving cylinder and the rotary driving device.

The utility model discloses the theory of operation of picture peg formula flue gas isolation door is roughly as follows:

when the inserting plate door 4 needs to be opened, the main controller controls the relay to start the first driving cylinder 9, the movable rectangular frame 3 is lifted upwards by the cam assembly, namely, the movable rectangular frame 3 moves towards the inlet end 22 of the sealing door frame to be separated from the inserting plate door 4, the driving mechanism of the inserting plate door is started, the inserting plate door 4 is pulled out and enters the track frame 6, after one end of the inserting plate door 4, far away from the sealing door frame 11, touches the position sensor arranged on the track frame 28, far away from the sealing door frame, and then a signal is transmitted to the main controller, the main controller controls the relay to start the first driving cylinder 9, the movable rectangular frame 3 is pressed downwards by the cam assembly, namely, the movable rectangular frame 3 moves towards the outlet end 23 of the sealing door frame to be pressed on the frame type baffle 16, at the moment, the position sensor arranged on the frame baffle transmits a signal, the first driving cylinder 9 stops acting, and a closed, the mixture and the dust in the smoke are prevented from running into the space between the movable rectangular frame 3 and the sealed door frame, so that the next insertion of the inserting plate door 4 is prevented from being influenced by dirt.

When the inserting plate door needs to be closed, the main controller controls the relay to start the first driving cylinder 9, the movable rectangular frame 3 is lifted upwards through the cam assembly, namely, the movable rectangular frame moves towards the inlet end 22 of the sealing door frame to be separated from the inserting plate door 4, the driving mechanism of the inserting plate door is started, the inserting plate door 4 is inserted back into the sealing door frame 3, and the drawing or inserting is relatively easy and flexible. When one end of the inserting plate door 4, which is far away from the track frame 3, touches the position sensor of the sealing door frame 45, which is far away from the track frame, a signal is transmitted to the main controller, the main controller controls the relay to start the first driving cylinder 9, the movable rectangular frame 3 is pressed downwards by the cam component, namely moves towards the sealing door frame outlet end 23, so as to press the upper surface of the inserting plate door 4, namely the surface close to the sealing door frame inlet end 22, because the bottom of the inserting plate door 4, namely the lower surface, namely the surface close to the sealing door frame outlet end 23, is supported and pressed by the frame type baffle 16, the position sensor arranged on the frame baffle transmits a signal at the moment, and the first driving cylinder. At this time, the peripheral end surfaces, namely all end surfaces, of the outlet end 17 of the movable rectangular frame tightly press the inserting plate door 4, so that the inserting plate door 4 and the movable rectangular frame form a closed state, and the effects of isolating smoke dust and the like are achieved, namely, the smoke dust is not leaked inwards, namely, the air inlet end of the flue is not leaked outwards, namely, the outlet end of the flue is not leaked outwards.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides an inserted plate formula flue gas isolation door, includes sealed door frame and inserted plate door, its characterized in that: the accommodating device is connected with the sealed door frame and used for accommodating the drawn inserting plate door; the two ends of the sealing door frame are connected and sealed with the inlet end and the outlet end of the annular flue, a long through hole for the linear movement of the inserting plate door is arranged on the transverse partition of the sealing door frame and the accommodating device, and a driving mechanism for drawing and inserting the inserting plate door is arranged on the accommodating device and the sealing door frame; a movable annular frame used for moving along the direction of the inlet and the outlet of the flue is arranged in the sealing door frame, a driving mechanism used for enabling the movable annular frame to move along the direction of the inlet and the outlet of the flue is arranged on the sealing door frame, and a frame type baffle plate used for blocking the inserting plate door pressed by the movable annular frame to abut against and seal is arranged in the sealing door frame connected with the outlet end of the flue; the inlet end of the movable annular frame and the inlet end of the sealing door frame are provided with elastic sealing structures.

2. The flashboard smoke isolation door of claim 1, wherein: the structure of the driving mechanism which enables the movable annular frame to move along the inlet and outlet direction of the flue is as follows: a plurality of first driving cylinders which act synchronously are arranged on the outer side of the sealing door frame, and a cam component used for driving the movable annular frame to move along the inlet and outlet directions of the flue is hinged to the free end of a first driving rod of each first driving cylinder.

3. The flashboard smoke isolation door of claim 2, wherein: two outer sides of the sealing door frame are respectively provided with two first driving cylinders, the free end of a first driving rod of each first driving cylinder is hinged with one end of a connecting arm, the other end of the connecting arm is fixed with a rotating shaft which is in rotating fit with the sealing door frame, the inner end of the rotating shaft penetrating through the sealing door frame is provided with a cam which can stir a first shifting block and drive the movable annular frame to move towards the inlet end of the sealing door frame so as to separate from the inserting plate door or stir a second shifting block and drive the movable annular frame to move towards the outlet end of the sealing door frame so as to press the inserting plate door on the frame type baffle, and the first shifting block and the second shifting block are both fixed on the outer wall of one corner in the four corners.

4. The flashboard smoke isolation door of claim 1, wherein: the elastic sealing structure of the inlet end of the movable annular frame and the inlet end of the sealing door frame is as follows: the inner edge of the stainless steel corrugated plate which is inclined upwards and inwards and downwards is fixed and sealed with the top of the inlet end of the movable annular frame, and the outer edge of the stainless steel corrugated plate is fixed and sealed with the top of the inlet end of the sealing door frame.

5. The inserting plate type smoke isolating door according to any one of claims 1 to 4, wherein: the accommodating device for accommodating the withdrawn inserting plate door is a rectangular track frame, the sealing door frame is a rectangular sealing door frame, the rectangular track frame and the rectangular sealing door frame form an integral rectangular door frame connected by a transverse partition, the movable annular frame is a movable rectangular frame, and the inserting plate door is a rectangular inserting plate door.

6. The inserting plate type smoke isolating door according to any one of claims 1 to 4, wherein: the sealing door frame is a rectangular door frame close to the half of the track frame, and a semicircular door frame far away from the half of the track frame; the movable annular frame is a movable rectangular frame close to the track frame, and a movable semicircular frame far away from the track frame; the half of the inserting plate door close to the track frame is a rectangular door, and the half of the inserting plate door far away from the track frame is a semicircular door.

7. The flashboard smoke isolation door of claim 5, wherein: the structure of the driving mechanism of the drawer inserting plate door is as follows: a pair of friction rollers which are used for clamping the inserting plate door on two sides and driving the inserting plate door to move linearly are arranged at the position, close to the transverse partition, of the track frame, two friction roller shafts are rotatably connected to two side frames of the track frame, one end of each of the two friction roller shafts, which extends out of the track frame, is provided with a gear, and the two gears are meshed with each other; the other end of one of the friction roll shafts, which extends out of the track frame, is coaxially connected with a first output shaft of a first rotary driving device fixed on the track frame at the other end; the frame of the track frame is internally provided with a guide rail for the linear movement of the extracted inserting plate door.

8. The flashboard smoke isolation door of claim 5, wherein: the structure of the driving mechanism of the drawer inserting plate door is as follows: and the track frame far away from the sealing door frame is provided with at least one second driving cylinder, and the free end of a second driving rod of the second driving cylinder is hinged with one end of the inserting plate door extending into the track frame.

9. The flashboard smoke isolation door of claim 5, wherein: the structure of the driving mechanism of the drawer inserting plate door is as follows: and the track frame far away from the sealing door frame is provided with at least one second rotary driving device, a second output shaft of the second rotary driving device is coaxially connected with a screw rod of which one end penetrates through the frame, and the other end of the screw rod is screwed with a nut fixed at one end of the inserting plate door extending into the track frame.

10. The flashboard smoke isolation door of claim 5, wherein: the structure of the driving mechanism of the drawer inserting plate door is as follows: the rail frame far away from the sealing door frame is provided with at least one first hoisting device, one end of a first cable is fixed on a first hoisting wheel of the first hoisting device, and the other end of the first cable is fixed on one end of the inserting plate door extending into the rail frame; the sealing door frame far away from the track frame is provided with at least one second hoisting device which synchronously acts with the first hoisting device, a second hoisting wheel of the second hoisting device is fixed with one end of a second cable, the other end of the second cable is fixed at one end of the inserting plate door far away from the track frame, and the first cable and the second cable are coaxial.

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