CN221167699U - Mechanical type turns over board door gear - Google Patents

Abstract

The utility model discloses a mechanical flap door device which comprises a main frame body, wherein a front supporting frame is fixed at the front part of a bottom frame of the main frame body, a rear supporting frame is fixed at the rear part of the bottom frame of the main frame body, at least one transverse plate is arranged at the inner side of the upper part of the front supporting frame, one or more supports are fixed on the transverse plate, and the bottom of the flap door body is hinged on all the supports through a hinge shaft. The hydraulic hoist can replace the traditional hydraulic hoist, the multistage threaded hoist is utilized, the whole machine is ensured to be short in length and has enough travel, the hydraulic hoist is directly driven by a driving motor, no complex pipeline is adopted, the hydraulic hoist is simple in arrangement, overhauling and maintenance are simple and convenient, and when the driving motor cannot operate independently due to no electricity or power failure and the like, the hydraulic hoist can realize the operation of the driving motor by manually rotating the manual input shaft, so that the hydraulic hoist can drive the flap door to turn over, and the hydraulic hoist is good in effect and high in efficiency.

Description

Mechanical type turns over board door gear

Technical field:

the utility model relates to the technical field of water conservancy equipment, in particular to a mechanical flap gate device.

The background technology is as follows:

In recent years, along with the increase of extremely severe weather, a gate device (flap gate) capable of being fallen down and rising up to stop water is increasingly applied to the embankments at two sides of a river channel, the entrances and exits of underground space and the like. The opening and closing equipment used at present for the flap gate is basically a hydraulic opening and closing machine, and the gate is pushed to turn over by utilizing the expansion and contraction of a hydraulic rod. The hydraulic hoist needs to be provided with a hydraulic pump station and a complex oil pipe, the floor space is large, the installation engineering quantity is large, the precision requirement is high, the later operation management, overhaul and maintenance are difficult, meanwhile, the lifting gate is very difficult to keep water when the hydraulic hoist fails, and the reliability of the flap gate for guaranteeing the safety of a building during flood is greatly reduced.

The utility model comprises the following steps:

The utility model aims to overcome the defects of the prior art, and provides a mechanical flap door device which can replace the traditional hydraulic hoist, utilizes a multi-stage threaded lifter to ensure that the whole machine is short in length and has enough travel, adopts a driving motor to directly drive, has no complex pipeline, is simple to arrange, is convenient to overhaul and maintain, can realize the operation of a driving motor by manually rotating a manual input shaft when the driving motor cannot operate autonomously due to no electricity or power failure and the like, so that the flap door is driven to turn by the mechanical flap door device, and has good effect and high efficiency.

The scheme for solving the technical problems is as follows:

The mechanical type flap door device comprises a main frame body, wherein a front supporting frame is fixed at the front part of a bottom frame of the main frame body, a rear supporting frame is fixed at the rear part of the bottom frame of the main frame body, at least one transverse plate is arranged at the inner side of the upper part of the front supporting frame, one or more supporting seats are fixed on the transverse plate, and the bottom of the flap door body is hinged on all the supporting seats through a hinge shaft;

A mechanical transmission mechanism is arranged on the top surface of the underframe of the main frame body, a multi-stage threaded lifter is fixed on the top output shaft of a corner reduction gearbox of the mechanical transmission mechanism, and the top end of a top threaded connecting rod of the multi-stage threaded lifter is movably connected with a supporting rib plate at the rear part of the flap door body through a hinge shaft;

The middle part of the inner wall surface of the rear supporting frame is fixedly provided with a square pipe with a central rectangular through hole, a manual emergency device is arranged in the square pipe, and the rear end of a main shaft of the driving motor extends out of the rear wall surface of the driving motor and is connected with an emergency transmission shaft of the manual emergency device.

The mechanical transmission mechanism is structurally characterized in that a reduction gearbox, a driving motor and two corner reduction boxes are fixed on the top surface of a bottom frame of a main frame body;

The driving motor is fixed on the rear wall surface of the reduction gearbox, the driving motor drives the reduction gearbox to operate, the two corner reduction gearboxes are positioned on two sides of the reduction gearbox, the corner reduction gearbox is movably connected to the connecting seat through the hinge shaft, the connecting seat is fixed on the underframe of the main frame body, and output shafts extending from the left side and the right side of the reduction gearbox are connected with input shafts of the corresponding corner reduction gearboxes.

The output shaft of the driving motor extends into an input hole formed in the rear end of the reduction gearbox, the end part of the output shaft of the reduction gearbox is connected with one end of the transmission shaft through a coupler, and the other end of the transmission shaft is connected with the input shaft of the corresponding corner reduction gearbox through the coupler.

The multistage threaded lifter comprises a top threaded connecting rod, a plurality of middle threaded connecting rods and bottom threaded connecting rods, central through holes are formed in the middle parts of the top threaded connecting rods, the middle threaded connecting rods and the bottom threaded connecting rods, and external threads are formed on the outer side walls of the top threaded connecting rods and the middle threaded connecting rods;

The bottom ends of the bottom threaded connecting rods are fixed on the top output shaft of the corner reduction gearbox, the inner thread sleeves are fixed on the top inner side walls of the bottom threaded connecting rods, the inner thread sleeves are fixed on the top inner side walls of all the middle threaded connecting rods, the bottom ends of the middle threaded connecting rods above the middle threaded connecting rods are screwed into the inner thread sleeves of the middle threaded connecting rods below the middle threaded connecting rods, the bottom ends of the middle threaded connecting rods and the top threaded connecting rods are fixed with limiting blocks, the top side parts of the limiting blocks are pressed against the bottom surfaces of the corresponding inner thread sleeves, the bottommost middle threaded connecting rods are screwed into the inner thread sleeves of the bottom threaded connecting rods, and the top side parts of the limiting blocks of the bottommost middle threaded connecting rods are pressed against the bottom surfaces of the inner thread sleeves of the bottom threaded connecting rods;

The top threaded connecting rod is in the internal thread sleeve of the middle threaded connecting rod at the top, and the outer diameter of the limiting block of the top threaded connecting rod is larger than the inner diameter of the internal thread sleeve of the middle threaded connecting rod at the top.

The manual emergency device is structurally characterized in that an upper fixing plate is fixed in the upper part of a square tube, the side wall of the upper fixing plate is fixed on the inner side wall of the square tube, a through groove is formed in the front side plate of the lower part of the square tube, a first corner reduction box is arranged in the lower part of the square tube, a connecting through hole is formed in the middle part of the upper fixing plate, a manual input shaft is inserted and sleeved in the connecting through hole, the upper part of the manual input shaft is movably connected to the upper fixing plate through a bearing, the top of the manual input shaft extends out of the upper fixing plate, and the bottom end of the manual input shaft is connected with the upper connecting shaft part of the first corner reduction box through a universal coupling;

The rear end shaping of driving motor's main shaft or be fixed with first spline portion, emergency drive shaft is in between driving motor and the first corner reducing gear box, emergency drive shaft's rear end is connected with the front end output shaft of first corner reducing gear box through the shaft coupling, the logical groove is stretched out to the front end of the front end output shaft of first corner reducing gear box, emergency drive shaft's front end is fixed or is shaped has second spline portion, first spline portion and second spline portion plug bush are in same spline housing body, the shaping has the spline groove on the inside wall of spline housing body, the spline of first spline portion and second spline portion cooperatees with the spline groove.

The emergency transmission shaft is fixed on the bearing inner ring of the connecting bearing seat.

An annular groove is formed in the middle of the outer side wall of the spline housing body, two arc-shaped shifting fork blocks are inserted and sleeved at the left side and the right side of the annular groove, the middle of the outer side wall of each shifting fork block is movably connected with a shifting claw rod through a hinge shaft, a supporting bearing seat is fixed on the top surface of a bottom frame of the main frame body, the bottoms of the two shifting claw rods are fixed on a lower connecting shaft, the lower connecting shaft is movably connected on the supporting bearing seat through the hinge shaft, the front end of at least one long shifting claw rod is fixed on the lower connecting shaft, the rear end of the long shifting claw rod is movably connected with a transition connecting rod through the connecting shaft, the rear part of the long shifting claw rod is inserted and sleeved in a square pipe, the top of the transition connecting rod is movably connected with a vertical moving limiting rod through an upper connecting shaft, and the left end and the right end of the upper connecting shaft are inserted and sleeved in vertical guide through grooves formed on front wall plates and rear wall plates of the square pipe;

the top end of the vertical movement limiting rod extends out of a transverse limiting through groove formed in the upper fixing plate.

The lower part of the square pipe is provided with a lower fixing plate, the side wall of the lower fixing plate is welded and fixed on the inner side wall of the lower part of the square pipe, and the first corner reduction gearbox is fixed on the top surface of the lower fixing plate.

The transverse limiting through groove consists of a circular through hole and a transverse through groove formed on one side of the circular through hole, and the width of the transverse through groove is smaller than the diameter of the circular through hole;

The upper outer side wall of the vertical movement limiting rod is provided with an annular limiting clamping groove in a forming mode, the diameter of the inner side wall of the annular limiting clamping groove is smaller than the width of the transverse through groove, and the upper outer side wall of the vertical movement limiting rod is larger than the width of the transverse through groove.

The utility model has the outstanding effects that:

1. The multi-stage threaded lifter is adopted, so that the length of the whole machine is short, and enough travel is ensured, the multi-stage threaded lifter is directly driven by a driving motor, no complex pipeline is adopted, the arrangement is simple, and the overhaul and maintenance are simple and convenient; and when the driving motor cannot operate autonomously due to no power or power failure and the like, the driving motor can be operated by manually rotating the manual input shaft, so that the driving motor drives the flap door to turn over, and the effect is good and the efficiency is high. 2. The mechanical transmission is adopted, the technology is mature, the structure is simple, and the requirement on the component precision is low; 3. the multistage threaded lifter adopts threaded connection, has self-locking characteristic, can stably maintain the working opening state of equipment for a long time, and has high safety and reliability; 4. the hydraulic hoist is directly driven by a driving motor, has no complex pipeline, is simple to arrange and convenient to overhaul and maintain, does not need a hydraulic station and complex pipelines compared with a hydraulic hoist, occupies small area, has small installation engineering quantity, and saves precious space and time.

Description of the drawings:

FIG. 1 is a schematic view of the present utility model in partial construction when open;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is a schematic view of a partial structure at a drive motor;

FIG. 4 is a schematic view of the present utility model in partial configuration upon closing;

FIG. 5 is a partial schematic view of the manual emergency apparatus;

FIG. 6 is a partial schematic view of the manual input shaft;

FIG. 7 is a partial top view of the present utility model at a main horizontal transverse plate;

FIG. 8 is a schematic view of a partial structure at the finger;

Fig. 9 is a schematic view of a partial structure between the spline housing body and the first and second spline portions.

FIG. 10 is a partial cross-sectional view of the lock body;

FIG. 11 is a cross-sectional view of a side view of the lock body;

Fig. 12 is a partial top view of the end cap.

The specific embodiment is as follows:

As shown in fig. 1 to 12, the embodiment, a mechanical flap door apparatus includes a main frame 10, a front support frame 11 is fixed at the front part of a chassis of the main frame 10, a rear support frame 12 is fixed at the rear part of the chassis of the main frame 10, at least one transverse plate 111 is installed at the inner side of the upper part of the front support frame 11, one or more supports 13 are fixed on the transverse plate 111, and the bottom of the flap door 20 is hinged on all the supports 13 through a hinge shaft;

A mechanical transmission mechanism is fixed on the top surface of the underframe of the main frame body 10, and comprises a reduction gearbox 14, a driving motor 15 and two corner reduction gearboxes 16, which are all fixed on the top surface of the underframe of the main frame body 10;

The driving motor 15 is fixed on the rear wall surface of the reduction gearbox 14, the driving motor 15 drives the reduction gearbox 14 to run, two corner reduction gearboxes 16 are positioned on two sides of the reduction gearbox 14, the corner reduction gearboxes 16 are movably connected to the connecting seat 17 through the hinge shaft, the connecting seat 17 is fixed on the underframe of the main frame body 10, and output shafts extending out of the left side and the right side of the reduction gearbox 14 are connected with input shafts of the corresponding corner reduction gearboxes 16;

The top output shaft of the corner reduction gearbox 16 is fixedly provided with a multi-stage threaded lifter 30, and the top end of a top threaded connecting rod 31 of the multi-stage threaded lifter 30 is movably connected with a support rib plate at the rear part of the flap door body 20 through a hinge shaft.

Further, the output shaft of the driving motor 15 extends into an input hole provided at the rear end of the reduction gearbox 14, the end of the output shaft of the reduction gearbox 14 is connected with one end of the transmission shaft 141 through a coupling, and the other end of the transmission shaft 141 is connected with the input shaft of the corresponding corner reduction gearbox 16 through a coupling.

Further, the multi-stage screw lifter 30 includes a top screw connecting rod 31, a plurality of middle screw connecting rods 32 and a bottom screw connecting rod 33, central through holes are formed in the middle parts of the top screw connecting rod 31, the middle screw connecting rod 32 and the bottom screw connecting rod 33, and external threads are formed on the outer side walls of the top screw connecting rod 31 and the middle screw connecting rod 32;

The bottom ends of the bottom threaded connecting rods 33 are fixed on the top output shaft of the corner reduction gearbox 16, the inner thread sleeves 34 are fixed on the top inner side walls of the bottom threaded connecting rods 33, the inner thread sleeves 34 are fixed on the top inner side walls of all the middle threaded connecting rods 32, the bottom ends of the middle threaded connecting rods 32 above the middle threaded connecting rods 32 are screwed in the inner thread sleeves 34 of the middle threaded connecting rods 32 below the middle threaded connecting rods 32, the limiting blocks 35 are fixed at the bottom ends of the middle threaded connecting rods 32 and the top ends of the top threaded connecting rods 31, the top side parts of the limiting blocks 35 are pressed against the bottom surfaces of the corresponding inner thread sleeves 34, the middle threaded connecting rods 32 at the bottommost are screwed in the inner thread sleeves 34 of the bottom threaded connecting rods 33, and the top side parts of the limiting blocks 35 of the middle threaded connecting rods 32 at the bottommost are pressed against the bottom surfaces of the inner thread sleeves 34 of the bottom threaded connecting rods 33;

The top threaded connecting rod 31 is screwed in the inner threaded sleeve 34 of the topmost middle threaded connecting rod 32, and the outer diameter of the limiting block 35 of the top threaded connecting rod 31 is larger than the inner diameter of the inner threaded sleeve 34 of the topmost middle threaded connecting rod 32.

Further, a top fixing connection seat 311 is fixed at the top end of the top threaded connection rod 31, and the top fixing connection seat 311 is movably connected with the support rib plate at the rear part of the flap door body 20 through a hinge shaft.

Further, the underframe of the main frame body 10, the front supporting frame 11 and the rear supporting frame 12 are all formed by welding and fixing a plurality of section steel.

Further, the left and right sides of the front support frame 11 and the rear support frame 12 are respectively provided with a transverse support beam 121, one end of the transverse support beam 121 is welded and fixed on the front support frame 11, the other end is welded and fixed on the rear support frame 12, and a fixed cover baffle 1 is fixed between the front wall surface of the front support frame 11, the rear wall surface of the rear support frame 12, the bottom surface of the underframe of the main frame body 10, the outer side wall of the transverse support beam 121 and the outer side wall of the underframe of the main frame body 10.

Further, a plurality of inner support rods are fixed at the inner side of the front support frame 11, the bottom ends of the inner support rods are fixed on the top surface of the underframe of the main frame body 10, and the transverse plates 111 are fixed on the top surfaces of the corresponding inner support rods; the lower part of the front wall surface of the flap door body 20 is close to or clung to the top inner side wall of the front support frame 11.

A square tube 40 with a central rectangular through hole is fixed in the middle of the inner wall surface of the rear support frame 12, and a manual emergency device is arranged in the square tube 40;

The manual emergency device is structurally characterized in that an upper fixing plate 41 is fixed in the upper part of a square tube 40, the side wall of the upper fixing plate 41 is fixed on the inner side wall of the square tube 40, a through groove 42 is formed in the front side plate of the lower part of the square tube 40, a first corner reduction box 43 is installed in the lower part of the square tube 40, a connecting through hole 411 is formed in the middle part of the upper fixing plate 41, a manual input shaft 44 is inserted in the connecting through hole 411, the upper part of the manual input shaft 44 is movably connected to the upper fixing plate 41 through a bearing, the top of the manual input shaft 44 extends out of the upper fixing plate 41, and the bottom end of the manual input shaft 44 is connected with the upper connecting shaft part of the first corner reduction box 43 through a universal coupling;

The rear end of the main shaft of the driving motor 15 extends out of the rear wall surface of the driving motor 15 and is provided with a first spline portion 151 in a molding or fixing mode, the emergency transmission shaft 45 is located between the driving motor 15 and the first corner reduction box 43, the rear end of the emergency transmission shaft 45 is connected with the front end output shaft of the first corner reduction box 43 through a coupler, the front end of the front end output shaft of the first corner reduction box 43 extends out of the through groove 42, the front end of the emergency transmission shaft 45 is provided with a second spline portion 451 in a fixing or molding mode, the first spline portion 151 and the second spline portion 451 are inserted in the same spline sleeve body 46, spline grooves are formed in the inner side wall of the spline sleeve body 46, and the spline grooves of the first spline portion 151 and the spline grooves of the second spline portion 451 are matched with each other.

Further, the connection bearing seat 18 is fixed on the top surface of the underframe of the main frame body 10, and the emergency transmission shaft 45 is fixed on the bearing inner ring of the connection bearing seat 18.

Further, an annular groove 461 is formed in the middle of the outer side wall of the spline housing 46, two arc-shaped shifting fork blocks 462 are inserted and sleeved at the left side and the right side of the annular groove 461, the middle of the outer side wall of the shifting fork blocks 462 is movably connected with a shifting claw rod 47 through a hinge shaft, a supporting bearing seat 48 is fixed on the top surface of a bottom frame of the main frame 10, the bottoms of the two shifting claw rods 47 are fixed on a lower connecting shaft, the lower connecting shaft is movably connected on the supporting bearing seat 48 through the hinge shaft, the front end of at least one long shifting claw rod 49 is fixed on the lower connecting shaft, the rear end of the long shifting claw rod 49 is movably connected with a transition connecting rod 491 through the connecting shaft, the rear part of the long shifting claw rod 49 is inserted and sleeved in a through groove 42, the transition connecting rod 491 is inserted and sleeved in a square pipe 40, the top of the transition connecting rod 491 is movably connected with a vertical movement limiting rod 493 through an upper connecting shaft 492, and the left end and the right end of the upper connecting shaft 492 is inserted and sleeved in a vertical guide through groove 401 formed on the front wall plate and the rear wall plate of the square pipe 40;

the top end of the vertical movement limiting rod 493 extends out of the transverse limiting through slot 412 on the upper fixing plate 41.

Further, a lower fixing plate 402 is disposed in the lower portion of the square tube 40, the side wall of the lower fixing plate 402 is welded and fixed on the inner side wall of the lower portion of the square tube 40, and a first corner reduction gearbox 43 is fixed on the top surface of the lower fixing plate 402.

Further, the lateral limit through groove 412 is formed by a circular through hole and a lateral through groove formed at one side of the circular through hole, and the width of the lateral through groove is smaller than the diameter of the circular through hole;

An annular limiting clamping groove 494 is formed in the outer side wall of the upper portion of the vertical movement limiting rod 493, the diameter of the inner side wall of the annular limiting clamping groove 494 is smaller than the width of the transverse through groove, and the outer side wall of the upper portion of the vertical movement limiting rod 493 is larger than the width of the transverse through groove.

Further, a connecting chain 50 is fixed at the top end of the vertical moving limiting rod 493, an end cover 51 is mounted at the top end of the connecting chain 50, a main horizontal transverse plate 55 extending left and right is fixed at the top surface of the rear supporting frame 12, a rectangular through hole 56 is formed in the main horizontal transverse plate 55, the rectangular through hole 56 corresponds to the top of the square tube 40 vertically, and the end cover 51 is matched with the rectangular through hole 56.

The middle part of the bottom surface of the end cover 51 is fixedly provided with a circular block-shaped lock body 60, the middle part of the top surface of the lock body 60 is provided with a central circular hole 61, a lock cylinder 70 is inserted in the central circular hole 61, the front side wall and the rear side wall of the lock cylinder 70 are respectively provided with an arc groove 71, the outer side wall of the lock cylinder 70 is close to or clung to the inner side wall of the central circular hole 61, the inner side wall of the central circular hole 61 corresponding to the arc groove 71 is provided with a stepped positioning through hole 62, the positioning sleeve 63 is clamped on the inner side wall of a small diameter hole section of the stepped positioning through hole 62, the inner side outer side wall of the positioning sleeve 63 is provided with a radial extension edge, the radial extension edge is clamped in a large diameter hole section of the inner end of the stepped positioning through hole 62, the middle part of the positioning sleeve 63 is provided with an inner stepped through hole with a small diameter, the hemispherical body of the positioning lock cylinder 64 is inserted in the corresponding arc groove 71, the outer wall middle part of the hemispherical body of the positioning lock cylinder 64 is provided with a locking rod 65, the locking rod 65 is inserted on the inner side wall of the hemispherical body of the locking cylinder 64, one end of the buffering spring 66 is clamped on the inner side surface of the inner side of the stepped hole 62, the concave hole 73 is corresponding to the concave hole 73, the hemispherical surface of the hemispherical body is provided with a large concave hole 72, and the concave hole 72 is formed in the large side of the hemispherical surface of the hemispherical body is corresponding to the concave hole 72; the middle part of the top surface of the lock cylinder 70 is provided with a key jack 74, and the key jack 74 is aligned with and communicated with a jack formed in the middle part of the end cover 51;

An arc body 80 is fixed on the top surface of the upper fixing plate 41, 3 insertion holes are formed between the arc body 80 and the inner side wall of the square tube 40, lower positioning columns 511 are fixed at four feet of the bottom surface of the end cover 51, three lower positioning columns 511 correspond to the insertion holes, two limiting holes 81 are formed on the side wall of the arc body 80, the limiting holes 81 correspond to the outer ends of the locking rods 65, and the top end of the connecting chain 50 is fixed on the bottom surface of the lock body 60.

The front bottom surface of the main horizontal transverse plate 55 is movably connected with a rotating shaft part extending left and right through a bearing, a plurality of connecting arms 57 are fixed on the rotating shaft, the top surfaces of the connecting arms 57 are fixedly provided with vertical grab bars 58, two adjacent vertical grab bars 58 are connected through side chains, one end of a tensioning chain 59 is fixed at the front end of the connecting arm 57, the other end of the tensioning chain 59 is fixed on the rear wall surface of the flap door body 20, and the tensioning chain 59 is tensioned between the connecting arms 57 and the flap door body 20. The tightening chain 59, the side chains and the connecting chain 50 in the drawings of the present embodiment are all shown by lines.

A downward turning limit switch 2 is fixed on the top surface of the transverse plate 111, and a roller on an induction arm of the downward turning limit switch 2 faces the rear wall surface of the flap door body 20;

The upper turning limit switch 3 is fixed at the front part of the top surface of the transverse plate 111, the bending limit block 4 is fixed on the bottom wall plate of the turning plate door body 20, and the rear wall surface of the vertical part of the bending limit block 4 is abutted against the roller on the induction arm of the upper turning limit switch 3.

In use, the outer part of the multi-stage screw lifter 30 is sleeved with a ripple protecting sleeve, the top end of the ripple protecting sleeve is fixed on the top fixing connecting seat 311, and the bottom end of the ripple protecting sleeve is fixed on the bottom end of the bottom screw connecting rod 33.

When the device is used, the device can run through the driving motor 15 to drive the reduction gearbox 14 to run, the reduction gearbox 14 drives the two corner reduction gearboxes 16 to run through the transmission shaft 141, the bottom screw connection rods 33 are rotated, therefore, the bottommost middle screw connection rods 32 are lifted until the top surface edge of the limiting block 35 of the device is pressed against the bottom surface of the inner screw sleeve 34 of the bottom screw connection rods 33, lifting limiting is achieved, at the moment, the bottommost middle screw connection rods 32 rotate along with the bottom screw connection rods 33 to drive the middle screw connection rods 32 above the bottommost middle screw connection rods 32 to rotate, in this way, until the top screw connection rods 31 rotate, in the continuous lifting process, the turning plate door bodies 20 are turned forwards, during turning, all the connection arms 57 are turned upwards due to the pulling action of the tensioning chains 59, the vertical handrail rods 58 are all vertical, the lower parts of the front wall surfaces of the multistage turning plate door bodies 20 are close to or are clung to the top inner side walls of the front supporting frame 11, at the moment, the rear wall surfaces of the vertical parts of the multistage turning plate door bodies 20 are leaned against the sensing arms of the upper limiting switches 3, the upper side of the upper side limiting switches 3 are turned, the complete machine is controlled to enable the host to be controlled to be in a short, the control of the motor to be turned over, the host is controlled to be a complicated, the host is controlled to be a maintenance machine is stopped, the host is a maintenance machine is easy, and a maintenance device is controlled, and a maintenance device is easy, and a maintenance device is required to be controlled, and has is required to be used. The mechanical transmission is adopted, the technology is mature, the structure is simple, and the requirement on the component precision is low; the multistage screw lifter 40 adopts screw connection, has self-locking characteristic, can stably maintain the working opening state of the equipment for a long time, and has high safety and reliability.

When the turning-down is needed, the main shaft of the driving motor 15 reversely rotates to shrink the stage thread lifter 30, the flap door body 20 is turned down until the rear wall surface of the flap door body 20, namely the bottom surface of one of the reinforcing ribs of the flap door body 20 is leaning against the roller on the sensing arm of the turning-down limit switch 2, at the moment, the turning-down limit switch 2 transmits the sensing signal to the control host, the control host controls the driving motor 15 to stop running, limiting is realized, turning-down return is realized, and the effect is good.

When the driving motor 15 is not powered and cannot operate, but the main shaft can still operate, at the moment, a key is inserted into a key insertion hole 74 and an insertion hole formed in the middle of the end cover 51, then the key is turned, so that the lock cylinder 70 rotates, when the key rotates, the hemispherical body of the positioning lock head 64 moves out of the small concave hole 73 and moves into the arc-shaped groove 71 along with the outer side wall of the lock cylinder 70 and finally is inserted into a large concave hole 72 formed on the inner wall surface of the corresponding arc-shaped groove 71, the spherical surface of the hemispherical body is tightly attached to the inner wall surface of the large concave hole 72, at the moment, the outer end of the locking rod 65 of the positioning lock head 64 is retracted into an inner stepped through hole of the positioning sleeve 63, the key is not inserted into the limiting hole 81 any more, at the moment, the key insertion hole 74 and the insertion hole of the end cover 51 are just crisscross, and the key cannot be pulled out from the end cover 51, and at the moment, the key is held upwards to lift the end cover 51, and the rectangular through hole 56 is not covered any more;

When the end cover 51 is lifted, due to the connection of the connecting chain 50, the top of the vertical movement limiting rod 493 is pulled upwards together, so that the annular limiting clamping groove 494 is leveled with the transverse limiting through groove 412, then, the vertical movement limiting rod 493 is pushed transversely, so that two side edges of the transverse limiting through groove 412 are inserted into the annular limiting clamping groove 494, the vertical movement limiting rod 493 is positioned, the vertical movement limiting rod 493 is pulled upwards, the upper connecting shaft 492 of the vertical movement limiting rod 493 moves upwards along the vertical guiding through groove 401, the transitional connecting rod 491 also moves upwards, at the moment, the right end of the long pulling claw rod 49 is lifted upwards, at the moment, the left end of the long pulling claw rod 49 is turned downwards, so that the lower connecting shaft is rotated, and the two pulling claw rods 47 are driven to swing forwards, and during swinging, the two pulling fork blocks 462 are driven to move forwards, so that the first spline part 151 and the second spline part 451 are sleeved in the same spline housing 46, the spline housing 46 is formed on the inner side wall of the spline housing 46, the spline housing 151 and the spline housing 451 is also lowered in a certain distance from the spline housing 151 to the spline housing 46, and the spline housing 451 is reduced to the spline housing 151 and the spline housing 46, and the spline housing is greatly reduced in the gap between the spline housing 151 and the spline housing 46 when the spline housing is greatly reduced, and the spline housing is greatly reduced by the spline housing 151 and the spline housing is formed by the spline housing 151 and the spline housing with the spline housing 151;

Then, the hexagonal hole or other hole in the bottom of the rocker (the rocker is a common component and will not be described in detail), the corresponding boss on the top of the manual input shaft 44 is inserted into the hole, and the manual input shaft 44 can be rotated by manually rotating the rocker, the emergency transmission shaft 45 is driven to rotate by the first corner reduction gearbox 43, and the emergency transmission shaft 45 drives the main shaft of the driving motor 15 to rotate by the spline housing 46, so that the turning plate door body 20 can be turned.

When the lock is not needed to be manually operated, the end cover 51 can be held and moved, the vertical movement limiting rod 493 is moved to the round through hole of the transverse limiting through groove 412, then the lock is lowered, the end cover 51 is covered with the rectangular through hole 56, the lower positioning columns 511 at the four feet of the bottom surface of the end cover 51 are all positioned in the rectangular through hole 56, three lower positioning columns 511 are inserted into corresponding insertion holes, the lock body 60 is inserted into the arc-shaped body 80, then the key is manually rotated, so that the hemispheroids of the positioning lock head 64 are moved out of the large concave holes 72, move along the inner wall surface of the arc-shaped groove 71 and enter the corresponding small concave holes 73 along the outer side wall of the lock cylinder 70, the outer end of the locking rod 65 of the positioning lock head 64 extends out of the outer side wall of the lock body 60 and is inserted into the corresponding limiting hole 81, and locking is achieved, at the moment, the key insertion holes 74 are aligned with insertion holes of the end cover 51, and the key can be directly pulled out.

The wall surface of one end of the arc-shaped groove 71 is in smooth transition connection with the outer side wall of the lock cylinder 70, a step is formed between the other end of the arc-shaped groove 71 and the outer side wall of the lock cylinder 70, and the step can block the hemispherical body of the positioning lock head 64 and prevent the lock cylinder 70 from rotating in wrong direction.

The above embodiments are only for illustrating the present utility model, not for limiting the present utility model, and various changes and modifications may be made by one of ordinary skill in the relevant art without departing from the spirit and scope of the present utility model, and therefore, all equivalent technical solutions are also within the scope of the present utility model, and the scope of the present utility model is defined by the claims.

Claims (9)

1. A mechanical flap door device comprising a main frame (10), characterized in that: the front support frame (11) is fixed at the front part of the underframe of the main frame body (10), the rear support frame (12) is fixed at the rear part of the underframe of the main frame body (10), at least one transverse plate (111) is arranged at the inner side of the upper part of the front support frame (11), one or more support seats (13) are fixed on the transverse plate (111), and the bottom of the flap door body (20) is hinged on all the support seats (13) through a hinge shaft;

A mechanical transmission mechanism is arranged on the top surface of the underframe of the main frame body (10), a multi-stage threaded lifter (30) is fixed on the top output shaft of a corner reduction gearbox (16) of the mechanical transmission mechanism, and the top end of a top threaded connecting rod (31) of the multi-stage threaded lifter (30) is movably connected with a supporting rib plate at the rear part of the flap door body (20) through a hinge shaft;

a square tube (40) with a central rectangular through hole is fixed in the middle of the inner wall surface of the rear supporting frame (12), a manual emergency device is arranged in the square tube (40), and the rear end of a main shaft of the driving motor (15) extends out of the rear wall surface of the driving motor (15) and is connected with an emergency transmission shaft (45) of the manual emergency device.

2. A mechanical flap door apparatus according to claim 1, characterized in that: the mechanical transmission mechanism is structurally characterized in that a reduction gearbox (14), a driving motor (15) and two corner reduction gearboxes (16) are fixed on the top surface of a bottom frame of a main frame body (10);

the driving motor (15) is fixed on the rear wall surface of the reduction gearbox (14), the reduction gearbox (14) is driven by the driving motor (15) to run, two corner reduction gearboxes (16) are positioned on two sides of the reduction gearbox (14), the corner reduction gearboxes (16) are movably connected to the connecting base (17) through hinge shafts, the connecting base (17) is fixed to the underframe of the main frame body (10), and output shafts extending from the left side and the right side of the reduction gearbox (14) are connected with input shafts of the corresponding corner reduction gearboxes (16).

3. A mechanical flap door apparatus according to claim 2, characterized in that: the output shaft of the driving motor (15) stretches into an input hole formed in the rear end of the reduction gearbox (14), the end portion of the output shaft of the reduction gearbox (14) is connected with one end of the transmission shaft (141) through a coupler, and the other end of the transmission shaft (141) is connected with the input shaft of the corresponding corner reduction gearbox (16) through the coupler.

4. A mechanical flap door apparatus according to claim 1, characterized in that: the multistage threaded lifter (30) comprises a top threaded connecting rod (31), a plurality of middle threaded connecting rods (32) and bottom threaded connecting rods (33), central through holes are formed in the middle of the top threaded connecting rod (31), the middle threaded connecting rods (32) and the bottom threaded connecting rods (33), and external threads are formed on the outer side walls of the top threaded connecting rod (31) and the middle threaded connecting rods (32);

The bottom ends of the bottom threaded connecting rods (33) are fixed on the top output shaft of the corner reduction gearbox (16), internal thread sleeves (34) are fixed on the top inner side walls of the bottom threaded connecting rods (33), internal thread sleeves (34) are fixed on the top inner side walls of all the middle threaded connecting rods (32), the bottom ends of the middle threaded connecting rods (32) above the middle threaded connecting rods are in threaded connection with the internal thread sleeves (34) of the middle threaded connecting rods (32) below the middle threaded connecting rods, limiting blocks (35) are fixed at the bottom ends of the middle threaded connecting rods (32) and the top threaded connecting rods (31), the top side parts of the limiting blocks (35) are pressed against the bottom surfaces of the corresponding internal thread sleeves (34), the bottommost middle threaded connecting rods (32) are in threaded connection with the internal thread sleeves (34) of the bottom threaded connecting rods (33), and the top side parts of the limiting blocks (35) of the bottommost middle threaded connecting rods (32) are pressed against the bottom surfaces of the internal thread sleeves (34) of the bottom threaded connecting rods (33);

The top threaded connecting rod (31) is in threaded connection with the inner thread sleeve (34) of the middle threaded connecting rod (32) at the top, and the outer diameter of the limiting block (35) of the top threaded connecting rod (31) is larger than the inner diameter of the inner thread sleeve (34) of the middle threaded connecting rod (32) at the top.

5. A mechanical flap door apparatus according to claim 1, characterized in that: the manual emergency device is characterized in that an upper fixing plate (41) is fixed in the upper part of a square tube (40), the side wall of the upper fixing plate (41) is fixed on the inner side wall of the square tube (40), a through groove (42) is formed in the front side plate of the lower part of the square tube (40), a first corner reduction box (43) is arranged in the lower part of the square tube (40), a connecting through hole (411) is formed in the middle part of the upper fixing plate (41), a manual input shaft (44) is inserted and sleeved in the connecting through hole (411), the upper part of the manual input shaft (44) is movably connected to the upper fixing plate (41) through a bearing, the upper part of the manual input shaft (44) extends out of the upper fixing plate (41), and the bottom end of the manual input shaft (44) is connected with the upper connecting shaft part of the first corner reduction box (43) through a universal coupling;

The rear end shaping of the main shaft of driving motor (15) or be fixed with first spline portion (151), emergency drive shaft (45) are in between driving motor (15) and first corner reducing gear box (43), the rear end of emergency drive shaft (45) is connected with the front end output shaft of first corner reducing gear box (43) through the shaft coupling, logical groove (42) is stretched out to the front end of the front end output shaft of first corner reducing gear box (43), the front end of emergency drive shaft (45) is fixed or is formed with second spline portion (451), first spline portion (151) and second spline portion (451) plug bush are in same spline housing body (46), the shaping has the spline groove on the inside wall of spline housing body (46), the spline of first spline portion (151) and second spline portion (451) cooperatees with the spline groove.

6. A mechanical flap door apparatus according to claim 5, wherein: the emergency transmission shaft (45) is fixed on the bearing inner ring of the connecting bearing seat (18).

7. A mechanical flap door apparatus according to claim 5, wherein: an annular groove (461) is formed in the middle of the outer side wall of the spline housing body (46), two arc-shaped shifting fork blocks (462) are inserted and sleeved at the left side and the right side of the annular groove (461), a shifting claw rod (47) is movably connected to the middle of the outer side wall of the shifting fork blocks (462) through a hinge shaft, a supporting bearing seat (48) is fixed to the top surface of a bottom frame of the main frame body (10), the bottoms of the two shifting claw rods (47) are fixed to a lower connecting shaft, the lower connecting shaft is movably connected to the supporting bearing seat (48) through the hinge shaft, the front end of at least one long shifting claw rod (49) is fixed to the lower connecting shaft, the rear end of the long shifting claw rod (49) is movably connected with a transition connecting rod (491) through the connecting shaft, the rear end of the long shifting claw rod (49) is inserted and sleeved in a through groove (42), the transition connecting rod (491) is inserted and sleeved in a square pipe (40), the top of the transition connecting rod (491) is movably connected with a vertical movement limiting rod (493) through an upper connecting shaft (492), and the left end of the upper connecting shaft (492) is inserted and sleeved in a guide wall plate (401) of the rear end of the long pipe (40);

The top end of the vertical movement limiting rod (493) extends out of a transverse limiting through groove (412) formed in the upper fixing plate (41).

8. A mechanical flap door apparatus according to claim 5, wherein: the lower part of the square tube (40) is provided with a lower fixing plate (402), the side wall of the lower fixing plate (402) is welded and fixed on the inner side wall of the lower part of the square tube (40), and a first corner reduction gearbox (43) is fixed on the top surface of the lower fixing plate (402).

9. A mechanical flap door apparatus according to claim 7, wherein: the transverse limiting through groove (412) consists of a circular through hole and a transverse through groove formed on one side of the circular through hole, and the width of the transverse through groove is smaller than the diameter of the circular through hole;

Annular limiting clamping grooves (494) are formed in the outer side wall of the upper portion of the vertical movement limiting rod (493), the diameter of the inner side wall of each annular limiting clamping groove (494) is smaller than the width of each transverse through groove, and the outer side wall of the upper portion of the vertical movement limiting rod (493) is larger than the width of each transverse through groove.