CN113026684A

CN113026684A - Self-locking type synchronous opening and closing miter gate

Info

Publication number: CN113026684A
Application number: CN202110279893.8A
Authority: CN
Inventors: 薛晶; 魏玉翠; 杨宇
Original assignee: Zhenjiang Engineering Survey Design And Research Institute Co ltd
Current assignee: Zhenjiang Engineering Survey Design And Research Institute Co ltd
Priority date: 2021-03-16
Filing date: 2021-03-16
Publication date: 2021-06-25
Anticipated expiration: 2041-03-16
Also published as: CN113026684B

Abstract

The utility model relates to a from locking-type synchronous opening and close double helical gate relates to the field of double helical gate, and it includes two door frames of parallel arrangement, two be equipped with the first door body and the second door body that can close or open between the door frame, two be equipped with the headstock gear that drives the synchronous opening and closing of the first door body and the second door body between the door frame. The door has the advantages that the possible effect that the problem that the first door body and the second door body are difficult to close due to the fact that the first door body and the second door body are not synchronous in closing is reduced.

Description

Self-locking type synchronous opening and closing miter gate

Technical Field

The application relates to the field of miter gates, in particular to a self-locking type miter gate capable of being opened and closed synchronously.

Background

The herringbone gate is a gate which is formed in a herringbone shape by overlooking when a left gate leaf and a right gate leaf rotate around a vertical gate shaft in the side wall of a water channel respectively and the water channel is closed. When the herringbone gate works, the two door leaves form a three-hinge arch to bear water pressure; when the water channel is opened, the two door leaves are positioned in the door niches of the side walls, do not bear water pressure and are in a non-working state. The miter gate can only bear one-way water pressure, can only operate under the conditions of equal water levels at upstream and downstream and still water, is most used for a ship lock of a navigation river channel and is arranged at an upper lock head and a lower lock head as a working gate.

Chinese patent No. CN201746819U discloses a miter gate system, and more particularly, to a miter gate system with synchronous door closing control. The double-gate hydraulic control system comprises double-gate gates on the left side and the right side, respective hydraulic opening and closing machines of the double-gate gates on the two sides, a hydraulic pump station and a control cabinet, wherein full-open and full-close position switches and a waiting position limiting switch before closing are arranged on the respective hydraulic opening and closing machines of the double-gate gates on the two sides, and a relay switch matched with the waiting position limiting switch before closing is correspondingly arranged in a control loop.

According to the scheme, the limit switch is matched with the relay switch, so that the miter gates on two sides are synchronously closed when being closed quickly and completely. However, the inventor believes that when the limit switch and the relay age or signals are disturbed, the miter gates on the two sides are likely to be closed asynchronously due to lagging or leading of the signals, and therefore the miter gates on the two sides are difficult to be closed completely.

Disclosure of Invention

In order to solve the problem that the miter gate is difficult to completely close due to asynchronous closing, the self-locking type synchronous opening and closing miter gate is provided.

The application provides a from locking-type synchronous start-stop double helical gate adopts following technical scheme:

a self-locking type synchronous opening and closing miter gate comprises two parallel door frames, a first door body and a second door body which can be closed or opened are arranged between the two door frames, and an opening and closing device for driving the first door body and the second door body to be opened and closed synchronously is arranged between the two door frames.

By adopting the technical scheme, the opening and closing device realizes synchronous opening and closing between the first door body and the second door body, and reduces the possibility of the problem that the first door body and the second door body are difficult to close due to asynchronous closing of the first door body and the second door body.

It is optional, two be equipped with same mounting panel on the door frame, the first door body and the second door body are articulated through the pivot, be equipped with first pneumatic cylinder on the mounting panel, the piston rod of first pneumatic cylinder is connected with the part that the mounting panel was worn out in the pivot, the moving direction along first pneumatic cylinder piston rod is equipped with the turn trough on the mounting panel, pivot sliding connection is in the turn trough, all be equipped with the slide bar on the roof of the first door body and the second door body, two the projection coincidence of the line direction of two door frames is followed to the slide bar, the slide trough has been seted up, two along the line direction of two door frames on the mounting panel the slide bar all is located the slide trough.

By adopting the technical scheme, when the piston rod of the first hydraulic cylinder extends out, the rotating shaft is pushed to move towards the direction far away from the first hydraulic cylinder, and at the moment, the first door body and the second door body synchronously and relatively rotate due to the matching of the sliding rod and the sliding groove until the first door body and the second door body are completely opened, so that water flow can conveniently pass through; when a piston rod of the first hydraulic cylinder retracts, the rotating shaft is pulled to move towards the direction far away from the first hydraulic cylinder, the first door body and the second door body rotate back to back until the first door body and the second door body are abutted against the corresponding door frames, and water flow is cut off; the piston rod of the first hydraulic cylinder stretches out and draws back to realize the synchronous opening and closing of the first door body and the second door body in a mechanical mode, and the possibility that the closing of the miter gate is asynchronous due to the fact that signals are advanced or delayed is reduced.

Optionally, still be equipped with the locking device who is used for realizing locking after first door body and the second door body close on the mounting panel, locking device includes first hook, second hook and rotor plate, the rotor plate rotates to be connected on the mounting panel, the vertical connecting rod that is equipped with in bottom of the one end of first pneumatic cylinder is kept away from to the rotor plate, the mounting panel is passed to the one end that the rotor plate was kept away from to the connecting rod, first hook is connected with the one end that the mounting panel was passed to the connecting rod, the second hook is connected in the one end of first pneumatic cylinder of orientation on first door body or the second door body, be equipped with on the piston rod of first pneumatic cylinder and promote the piece, the piston rod of first pneumatic cylinder stretches out the back that targets in place, the one end that first pneumatic cylinder was kept away from to the rotor plate is promoted and is rotated by the piece to.

By adopting the technical scheme, when the piston rod of the first hydraulic cylinder extends out, the rotating shaft is pushed to move towards the direction far away from the first hydraulic cylinder, and at the moment, the first door body and the second door body synchronously and relatively rotate due to the matching of the sliding rod and the sliding groove, so that the first door body and the second door body are opened, and water flow is facilitated; in the process that the piston rod of first pneumatic cylinder stretches out, promote the one end butt of piece and rotor plate orientation pivot, and promote the one end of rotor plate orientation pivot and rotate towards the door frame, make first hook rotate towards the first door body or the second door body, and the second hook also rotates under the drive of the first door body or the second door body, the piston rod of first pneumatic cylinder stretches out the back that targets in place, first hook also just joints with the second hook, reduce the first door body and the second door body and open the back and receive rivers influence and wobbling possibility.

Optionally, a pulling plate is arranged on the mounting plate, the pulling plate is located at one end, away from the piston rod of the first hydraulic cylinder, of the rotating plate, a tension spring is arranged on the pulling plate, and one end, away from the pulling plate, of the tension spring is connected with one end, facing the first hydraulic cylinder, of the rotating plate;

be equipped with the sleeve in the pivot, the piston rod of first pneumatic cylinder is inserted in the sleeve, the piston rod of first pneumatic cylinder is equipped with spacing dish towards the outer wall of the one end of pivot, the inner wall of the one end of pivot is kept away from to the sleeve orientation is equipped with the spacing ring, when the piston rod of first pneumatic cylinder retracts, spacing dish and spacing ring butt.

Through adopting above-mentioned technical scheme, when the piston rod of first pneumatic cylinder withdraws, promote the direction removal of piece orientation first pneumatic cylinder, the rotor plate rotates towards the piston rod of first pneumatic cylinder towards the one end of pivot under the effect of extension spring for first hook and second hook loosen, then spacing dish and spacing ring butt, the piston rod of first pneumatic cylinder drives the pivot and moves towards first pneumatic cylinder this moment, and first hook and second hook can not cause the interference.

Optionally, the opening and closing device includes a fixed plate, the fixed plate is fixed between the two door frames, sliding holes are formed in the fixed plate along a connecting line direction of the two door frames, sliding rods are respectively arranged on top walls of the first door body and the second door body, one sliding rod is connected with the first door body in a sliding manner along a width direction of the first door body, the other sliding rod is connected with the second door body in a sliding manner along a width direction of the second door body, and the two sliding rods are connected in the sliding holes in a sliding manner;

be equipped with the second pneumatic cylinder on the fixed plate, it has two push rods to articulate on the piston rod of second pneumatic cylinder, the one end that the second pneumatic cylinder was kept away from to the push rod is articulated with the slide bar of homonymy, during the piston rod retraction of second pneumatic cylinder, the first door body and the second door body are in the closed condition, when the piston rod of second pneumatic cylinder stretches out, the first door body and the second door body are in the open mode, it is connected with the wheel cover to rotate on the slide bar, the wheel cover is with the inner wall butt in the hole that slides.

Through adopting above-mentioned technical scheme, when the first door body and the second door body need be closed, the piston rod of second pneumatic cylinder withdraws, and two push rods of pulling simultaneously move towards the second pneumatic cylinder, and every push rod all stimulates a slide bar and moves towards the mid point between two door frames, and the wheel cover is downthehole to move in sliding simultaneously, and two slide bars slide along the width direction of the door body separately for the first door body and the relative rotation of second door body, until the first door body and the synchronous closure of second door body.

Optionally, the fixed plate is rotatably connected with synchronous belt pulleys, the synchronous belt pulleys are arranged at two ends of the sliding hole along the length direction of the sliding hole, two same synchronous belts are connected between the synchronous belts, two connecting blocks are arranged on the sliding rod and connected with the synchronous belts, and the two connecting blocks move back to back or move relatively during the movement of the synchronous belts.

Through adopting above-mentioned technical scheme, when the second pneumatic cylinder breaks down, the hold-in range motion drives two connecting blocks and moves mutually or back to back, and then drives two pole of sliding mutually or relative movement mutually, realizes opening and being closed of the first door body and the second door body, reduces because of the second pneumatic cylinder trouble leads to the first door body and the second door body to be difficult to the possibility of opening and close.

Optionally, a second motor is fixedly connected to the fixing plate, an output shaft of the second motor is fixedly connected to one of the synchronous pulleys, a locking gear is further fixed to the output shaft of the second motor, a third hydraulic cylinder is fixedly connected to the fixing plate, a fixing block is fixedly connected to a piston rod of the third hydraulic cylinder, fixing teeth meshed with the locking gear are arranged on the fixing block, and when the piston rod of the third hydraulic cylinder extends out, the fixing teeth are meshed with the locking gear.

By adopting the technical scheme, the second motor can drive the synchronous belt pulley to rotate so as to drive the synchronous belt to move; when the first door body and the second door body move in place, the piston rod of the third hydraulic cylinder extends out to push the fixing block to move towards the locking gear, so that the fixing teeth are meshed with the locking gear, the possibility of rotation of the output shaft of the second motor is reduced, and the possibility of deviation of the first door body and the second door body is further reduced.

Optionally, fixedly connected with prevents opening the piece on the roof of the first door body, when the first door body and the second door body were closed, prevent opening the piece and extend to second door body top, the first motor of fixedly connected with on the roof of the second door body, the first gear of fixedly connected with on the output shaft of first motor, still be equipped with first rack on the roof of the second door body, first rack is equipped with the dovetail block towards the one end of the second door body, be equipped with on the roof of the second door body with dovetail block sliding connection's dovetail, dovetail block and dovetail sliding connection, first gear and first rack toothing, first rack slides along the direction of the line of connecting of two door frames of perpendicular to, prevent being equipped with on the piece and supply first rack male draw-in groove.

Through adopting above-mentioned technical scheme, after first door body and second door body closed, prevent that the opening block removes to the top of the second door body, first motor starts this moment, drives first gear revolve, first gear then drives first rack through the meshing with first rack and removes for first rack inserts the draw-in groove, and then locks first door body and second door body, reduces the possibility that first door body and second door body are washed away by rivers.

Optionally, the opening and closing device includes a sliding plate, the sliding plate is slidably connected to the door frames, the door frames are provided with driving assemblies for driving the sliding plate to slide along a direction perpendicular to a connecting line of the two door frames, the top walls of the first door body and the second door body are both provided with displacement rods, and projections of the two displacement rods along the connecting line of the two door frames are overlapped;

the slide has been inclined to have seted up the displacement groove on the slide, the displacement groove sets up along the line direction of two door frames relatively, the displacement pole is located the displacement inslot of homonymy, during the one end butt in displacement pole and displacement groove, the first door body and the second door body are in the closed condition, during the other end butt in displacement pole and displacement groove, the first door body and the second door body are in the open condition.

By adopting the technical scheme, when the first door body and the second door body need to be closed, the driving assembly drives the sliding plate to move, and the sliding plate pushes the first door body and the second door body to relatively rotate through the matching of the displacement groove and the displacement rod until the first door body and the second door body are synchronously closed.

Optionally, the driving assembly includes a third motor, a second gear and a second rack, the third motor is fixed to the top wall of the door frame, the second gear is fixed to an output shaft of the third motor, the second rack is fixed to the sliding plate along the sliding direction of the sliding plate, and the second gear is engaged with the second rack.

Through adopting above-mentioned technical scheme, when the slide needs to remove, the third motor starts, drives the second gear rotation, and the second gear then drives the second rack and removes, and then drives the slide and remove, realizes the synchronous of the first door body and the second door body and opens and close.

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

1. through the arrangement of the opening and closing device, the possibility that the first door body and the second door body are difficult to close due to the fact that the first door body and the second door body are not closed synchronously is reduced;

2. through the arrangement of the opening prevention block, the first motor, the first gear, the first rack and the clamping groove, the locking device has the effects of conveniently locking the first door body and the second door body and reducing the possibility that the first door body and the second door body are flushed by water flow;

3. through the arrangement of the first abutting surface, the second abutting surface, the first sealing strip, the first sealing groove and the extrusion block, the sealing performance between the first door body and the second door body is improved, and meanwhile, the tightness of the first door body and the second door body when the first door body and the second door body are closed is improved.

Drawings

Fig. 1 is a schematic structural view of the whole of embodiment 1 of the present application.

Fig. 2 is a schematic structural view of a locking device embodied in embodiment 1 of the present application.

Fig. 3 is a partially enlarged view of a portion a in fig. 1.

Fig. 4 is a schematic structural view of a spacing disc and a spacing ring embodied in embodiment 1 of the present application.

Fig. 5 is a schematic structural view of the whole body in embodiment 2 of the present application.

Fig. 6 is a schematic structural view of an opening and closing device and a locking device embodied in embodiment 2 of the present application.

Fig. 7 is a partially enlarged view of a portion B in fig. 6.

Fig. 8 is a schematic structural view of an emergency opening and closing mechanism embodied in embodiment 2 of the present application.

Fig. 9 is a schematic structural view showing a lock gear, a third hydraulic cylinder, a fixed block, and fixed teeth in embodiment 2 of the present application.

Fig. 10 is a partially enlarged view of a portion C in fig. 6.

Fig. 11 is a schematic structural view of the whole body in embodiment 3 of the present application.

Fig. 12 is a partially enlarged view of a portion D in fig. 11.

Description of reference numerals: 1. a door frame; 11. a T-shaped slot; 2. a first door body; 21. a slide bar; 211. a wheel sleeve; 212. a slider; 213. a water stopping rubber strip; 22. a chute; 23. a dovetail groove; 24. a first abutting surface; 241. a first seal strip; 3. a second door body; 31. a second abutting surface; 311. a first seal groove; 312. extruding the block; 32. a displacement rod; 4. an opening and closing device; 41. a fixing plate; 411. a sliding hole; 412. a second hydraulic cylinder; 413. a push rod; 414. an emergency opening and closing mechanism; 4141. a second motor; 4142. a synchronous pulley; 4143. a synchronous belt; 4144. connecting blocks; 4145. a lock gear; 4146. a third hydraulic cylinder; 4147. a fixed block; 4148. fixing teeth; 4151. a first stage; 4152. a second stage; 4153. a circular arc section; 42. a slide plate; 421. a drive assembly; 4211. a third motor; 4212. a second gear; 4213. a second rack; 422. a T-shaped block; 423. a displacement slot; 43. mounting a plate; 431. a first hydraulic cylinder; 4311. a pushing block; 4312. a limiting disc; 432. a movable component; 4321. a sleeve; 4322. a limiting ring; 433. a sliding groove; 434. rotating the groove; 435. pulling a plate; 4351. a tension spring; 44. a rotating shaft; 45. a slide bar; 46. a slide rail; 47. a locking device; 471. a rotating plate; 4711. a rotating shaft; 4712. a connecting rod; 472. a first hook; 473. a second hook; 474. a rotating groove; 5. a locking device; 51. an anti-opening block; 511. a card slot; 52. a first motor; 521. a winding wheel; 522. a hauling rope; 53. a first gear; 54. a first rack; 541. a dovetail block.

Detailed Description

The present application is described in further detail below with reference to figures 1-12.

Example 1

The application discloses a self-locking type synchronous opening and closing miter gate.

Referring to fig. 1, the self-locking type synchronous opening and closing miter gate comprises two parallel door frames 1, a first door body 2 and a second door body 3 are arranged between the two door frames 1, the first door body 2 is hinged to the second door body 3 through a rotating shaft 44, and the distance between the rotating shaft 44 and the two door frames 1 is equal. An opening and closing device 4 is arranged between the two door frames 1 and used for driving the first door body 2 and the second door body 3 to be opened and closed synchronously.

Referring to fig. 1 and 2, the opening and closing device 4 includes a mounting plate 43, the mounting plate 43 is fixed on two door frames 1, a first hydraulic cylinder 431 is fixed on the mounting plate 43, the top end of the rotating shaft 44 penetrates through the mounting plate 43, and the piston rod of the first hydraulic cylinder 431 is connected with the part of the rotating shaft 44 penetrating through the mounting plate 43 through a movable assembly 432. The piston rod of the first hydraulic cylinder 431 is parallel to the mounting plate 43, and the moving direction of the piston rod of the first hydraulic cylinder 431 is perpendicular to the connecting line direction of the two door frames 1. The mounting plate 43 is provided with a rotation slot 434 along the moving direction of the piston rod of the first hydraulic cylinder 431, for slidably connecting with the rotation shaft 44. The mounting plate 43 is further provided with a sliding groove 433 along the connecting line direction of the two door frames 1, the top walls of the first door body 2 and the second door body 3 are respectively fixed with a sliding rod 45, the distance between the axes of the two sliding rods 45 and the axis of the rotating shaft 44 is equal, and the two sliding rods 45 are both located in the sliding groove 433. And water-stop rubber strips 213 are fixed at the ends of the first door body 2 and the second door body 3, which are far away from the rotating shaft 44, and are used for being abutted against the door frame 1 when the gate is closed so as to improve the sealing property between the first door body 2 or the second door body 3 and the door frame 1. The water-stop rubber strip 213 may be made of rubber.

When the piston rod of the first hydraulic cylinder 431 extends, the rotating shaft 44 is pushed to move along the rotating groove 434, and the first door body 2 and the second door body 3 rotate relatively due to the matching of the sliding rod 45 and the sliding groove 433 until the piston rod of the first hydraulic rod extends to the maximum stroke, so that the gate is opened, and water flow is facilitated. When the piston rod of the first hydraulic cylinder 431 extends, the rotating shaft 44 is pulled to move along the rotating groove 434, and the first door body 2 and the second door body 3 rotate back to back until the first door body 2 and the second door body 3 abut against the corresponding door frame 1, so that the closing of the gate is realized. The ground is further provided with a slide rail 46 along the moving direction of the piston rod of the first hydraulic cylinder 431, the slide rail 46 coincides with the projection of the rotary groove 434 along the vertical direction, and the bottom end of the rotary shaft 44 is inserted into the slide rail 46 and is slidably connected with the slide rail 46, so that the possibility of deviation when the rotary shaft 44 moves is reduced.

Referring to fig. 2 and 3, the mounting plate 43 is further provided with a locking device 47, and the locking device 47 is provided with two sets, one set corresponds to the first door body 2, and the other set corresponds to the second door body 3. The locking device 5 includes a first hook 472, a second hook 473, and a rotating plate 471, a rotating shaft 4711 is fixed to the mounting plate 43 in the vertical direction, and the rotating plate 471 is rotatably connected to the rotating shaft 4711. A connecting rod 4712 is fixed on the bottom wall of one end of the rotating plate 471 facing the rotating shaft 44, one end of the connecting rod 4712 far away from the rotating plate 471 penetrates through the mounting plate 43 and is fixedly connected with the first hook 472, the second hook 473 is fixed on one end of the first door body 2 or the second door body 3 facing the first hydraulic cylinder 431, and the mounting plate 43 is further provided with a rotating groove 474 for the connecting rod 4712 to rotate around the rotating shaft 4711.

Referring to fig. 1 and 2, a pushing block 4311 is further fixedly connected to the piston rod of the first hydraulic cylinder 431, and distances between both ends of the pushing block 4311 in the length direction thereof and the piston rod of the first hydraulic cylinder 431 are both smaller than the minimum distance between the rotating shaft 4711 and the axis of the piston rod of the first hydraulic cylinder 431. When the piston rod of the first hydraulic cylinder 431 extends out, the pushing block 4311 is driven to move towards the rotating shaft 44, the pushing block 4311 is gradually abutted to the rotating plate 471, the rotating plate 471 is made to rotate towards the direction away from the first hydraulic cylinder 431 towards the end, facing the rotating shaft 44, of the rotating plate 471, at the moment, the first door body 2 or the second door body 3 also rotates towards the first hydraulic cylinder 431, when the piston rod of the first hydraulic cylinder 431 extends in place, the first hook 472 and the second hook 473 are just clamped and abutted tightly, and the possibility that the first door body 2 and the second door body 3 are impacted by water flow and shake is generated after the first door body 2 and the second door body 3 are opened is.

Referring to fig. 2 and 4, the mounting plate 43 is further fixedly connected with a pulling plate 435, the pulling plate 435 is arranged oppositely along a connecting line direction of the two door frames 1, a minimum distance between the pulling plate 435 and an axis of a piston rod of the first hydraulic cylinder 431 is greater than a maximum distance between the rotating plate 471 and the axis of the piston rod of the first hydraulic cylinder 431, one end of the pulling plate 435 facing the rotating plate 471 is fixedly connected with a tension spring 4351, and one end of the tension spring 4351 far away from the pulling plate 435 is fixedly connected with one end of the rotating plate 471 far away from the rotating shaft 44. The movable assembly 432 includes a sleeve 4321, a limiting disc 4312 is fixed to one end of the piston rod of the first hydraulic cylinder 431 facing the rotating shaft 44, an outer wall of the limiting disc 4312 is fitted to an inner wall of the sleeve 4321, and the limiting disc 4312 is slidably connected in the sleeve 4321. The end of the sleeve 4321 away from the rotating shaft 44 is provided with a limit ring 4322, the limit ring 4322 is fixedly connected to the inner wall of the sleeve 4321, the inner wall of the limit ring 4322 is adapted to the piston rod of the first hydraulic cylinder 431, and the limit ring 4322 is slidably connected to the piston rod of the first hydraulic cylinder 431.

When the piston rod of the first hydraulic cylinder 431 extends, one end of the piston rod of the first hydraulic cylinder 431 facing the rotating shaft 44 abuts against the rotating shaft 44. When the piston rod of the first hydraulic cylinder 431 retracts, the limiting disc 4312 slides in the sleeve 4321, and at this time, the piston rod of the first hydraulic cylinder 431 drives the pushing block 4311 to move towards the first hydraulic cylinder 431, and one end of the rotating plate 471, which faces the rotating shaft 44, rotates towards the first hydraulic cylinder 431 under the pulling force of the tension spring 4351, so that the first hook 472 and the second hook 473 are gradually separated. When the limiting disc 4312 abuts against the limiting ring 4322, the first hook 472 and the second hook 473 are completely separated, and at this time, the piston rod of the first hydraulic cylinder 431 drives the rotating shaft 44 to move toward the first hydraulic cylinder 431, so that the first door body 2 and the second door body 3 rotate back to back until abutting against the door frame 1.

The implementation process of the self-locking type synchronous opening and closing miter gate in the embodiment 1 of the application is as follows: when the piston rod of the first hydraulic cylinder 431 extends, the rotating shaft 44 is pushed to move along the rotating groove 434, and the first door body 2 and the second door body 3 rotate relatively due to the matching of the sliding rod 45 and the sliding groove 433 until the piston rod of the first hydraulic rod extends to the maximum stroke, so that the gate is opened, and water flow is facilitated. When the piston rod of the first hydraulic cylinder 431 extends out, the pushing block 4311 is driven to move towards the rotating shaft 44, the pushing block 4311 is gradually abutted against the rotating plate 471, the rotating plate 471 is rotated towards the direction away from the first hydraulic cylinder 431 towards the end, facing the rotating shaft 44, of the rotating shaft 44, and after the piston rod of the first hydraulic cylinder 431 extends out to the right position, the first hook 472 and the second hook 473 are just clamped and abutted tightly, so that the first door body 2 and the second door body 3 are locked and fixed when being opened.

When the piston rod of the first hydraulic cylinder 431 retracts, the limiting disc 4312 is driven by the piston rod of the first hydraulic cylinder 431 to slide in the sleeve 4321, and meanwhile, the piston rod of the first hydraulic cylinder 431 drives the pushing block 4311 to move towards the first hydraulic cylinder 431, and one end of the rotating plate 471, which faces the rotating shaft 44, rotates towards the first hydraulic cylinder 431 under the pulling force of the tension spring 4351, so that the first hook 472 and the second hook 473 are gradually separated. When the limiting disc 4312 abuts against the limiting ring 4322, the first hook 472 and the second hook 473 are completely separated, and at this time, the rotating shaft 44 is pulled to move along the rotating groove 434, and the first door body 2 and the second door body 3 rotate back to back until the first door body 2 and the second door body 3 abut against the corresponding door frame 1, so that the closing of the door is realized.

Example 2

The application also discloses a self-locking type synchronous opening and closing miter gate.

Referring to fig. 5, the difference from embodiment 1 is that the connection mode of the first door body and the second door body is changed, and the structure of the opening and closing device is changed, the first door body 2 is hinged with one doorframe 1, and the second door body 3 is hinged with the other doorframe 1. The opening and closing device 4 comprises a fixing plate 41, and the fixing plate 41 is fixedly connected between the two door frames 1. A locking device 5 is arranged between the first door body 2 and the second door body 3 and used for locking the first door body 2 and the second door body 3 when the first door body 2 and the second door body 3 are closed.

Referring to fig. 6 and 7, a sliding hole 411 is formed in the fixing plate 41 along the connecting line direction of the two door frames 1, sliding rods 21 are respectively arranged on the top walls of the first door body 2 and the second door body 3, a sliding block 212 is fixedly connected to the bottom wall of the sliding rods 21, sliding grooves 22 slidably connected with the sliding blocks 212 are respectively formed in the top walls of the first door body 2 and the second door body 3, the sliding blocks 212 are matched with the sliding grooves 22, and the sliding blocks 212 are trapezoidal in cross section. The sliding grooves 22 on the first door body 2 are formed along the width direction of the first door body 2, the sliding grooves 22 on the second door body 3 are formed along the width direction of the second door body 3, so that the sliding rods 21 on the first door body 2 can slide along the width direction of the first door body 2 conveniently, and the sliding rods 21 on the second door body 3 can slide along the width direction of the second door body 3 conveniently.

Referring to fig. 6 and 7, the two sliding rods 21 are located in the sliding holes 411, the two sliding rods 21 are rotatably connected with the wheel sleeves 211, and the wheel sleeves 211 are abutted against the inner walls of the sliding holes 411 to reduce friction between the sliding rods 21 and the sliding holes 411 when the sliding rods 21 move. The fixed plate 41 is fixedly connected with a second hydraulic cylinder 412, a piston rod of the second hydraulic cylinder 412 is hinged with two push rods 413, and one end of each push rod 413 far away from the second hydraulic cylinder 412 is hinged with the sliding rod 21 on the same side. When the piston rod of the second hydraulic cylinder 412 retracts, the two push rods 413 are pulled to move, so that the sliding rod 21 moves towards the midpoint between the two door frames 1 in the sliding hole 411, and meanwhile, the sliding block 212 moves towards the direction away from the door frames 1 in the sliding groove 22 until the first door body 2 and the second door body 3 are in the closed state. Otherwise, the first door body 2 and the second door body 3 are in an open state.

Referring to fig. 8 and 9, an emergency opening and closing mechanism 414 is disposed on the fixing plate 41, the emergency opening and closing mechanism 414 includes a second motor 4141, a synchronous pulley 4142, a synchronous belt 4143, and a connecting block 4144, and two synchronous pulleys 4142 are disposed at two ends of the sliding hole 411 in the length direction thereof. The second motor 4141 is fixedly connected to the fixing plate 41, an output shaft of the second motor 4141 is fixedly connected to one of the timing pulleys 4142, and the other timing pulley 4142 is rotatably connected to the fixing plate 41. The synchronous belt 4143 is sleeved on the two synchronous pulleys 4142 and meshed with the two synchronous pulleys 4142. The connecting blocks 4144 are provided in two, and one connecting block 4144 is fixedly connected to one slide lever 21. The synchronous belt 4143 comprises a first segment 4151, a second segment 4152 and two circular arc segments 4153, the first segment 4151 and the second segment 4152 are transited through the circular arc segments 4153, one connecting block 4144 is fixedly connected with the first segment 4151, and the other connecting block 4144 is fixedly connected with the second segment 4152, so that when the synchronous belt 4143 moves, the two connecting blocks 4144 move back to back or oppositely.

When the opening and closing device 4 is out of service and the first door body 2 and the second door body 3 still need to be opened and closed, the second motor 4141 is started to drive the synchronous belt pulley 4142 to rotate, the synchronous belt pulley 4142 drives the synchronous belt 4143 to move, and the synchronous belt 4143 drives the sliding rod 21 to move relatively or back to back, so that the first door body 2 and the second door body 3 are opened and closed synchronously.

Referring to fig. 9, a locking gear 4145 is further fixed to an output shaft of the second motor 4141, a third hydraulic cylinder 4146 is fixedly connected to the fixed plate 41, a fixed block 4147 is fixedly connected to a piston rod of the third hydraulic cylinder 4146, and a fixed tooth 4148 adapted to the locking gear 4145 is fixedly connected to the fixed block 4147. When the output shaft of the second motor 4141 needs to be locked, the piston rod of the third hydraulic cylinder 4146 extends, and the stationary teeth 4148 move toward the lock gear 4145 until the stationary teeth 4148 engage with the lock gear 4145, locking the output shaft of the second motor 4141.

Referring to fig. 6 and 10, the locking device 5 includes an anti-opening block 51, a first motor 52, a first gear 53, and a first rack 54, and the first gear 53 is engaged with the first rack 54. The opening prevention block 51 is welded to the top wall of the first door 2, and when the first door 2 and the second door 3 are in a closed state, a part of the opening prevention block 51 is located above the second door 3. The first motor 52 is fixedly connected to the top wall of the second door body 3, the first gear 53 is coaxially fixed to an output shaft of the first motor 52, the first rack 54 is arranged on the top wall of the second door body 3, one end of the first rack 54 facing the second door body 3 is fixedly connected with the dovetail block 541, the top wall of the second door body 3 is provided with the dovetail groove 23 in sliding connection with the dovetail block 541, the dovetail block 541 is in sliding connection with the dovetail groove 23, and the dovetail groove 23 is formed in a direction perpendicular to a connecting line of the two door frames 1. The part of the opening prevention block 51 above the second door body 3 is provided with a slot 511 for inserting the first rack 54. After the first door body 2 and the second door body 3 are closed, the first motor 52 is started to drive the first gear 53 to rotate, and the first gear 53 drives the first rack 54 to move, so that the first rack 54 is inserted into the slot 511, the first door body 2 and the second door body 3 are prevented from rotating, and locking is achieved.

Referring to fig. 10, a winding wheel 521 is fixedly connected to an output shaft of the first motor 52, a pulling rope 522 is wound around the winding wheel 521, a surface of the winding wheel 521 is fixedly connected to one end of the pulling rope 522, and one end of the pulling rope 522, which is far away from the winding wheel 521, extends to the door frame 1 and is tied to the door frame 1. When the first rack 54 is inserted into the slot 511 and the first motor 52 cannot be started, the pulling rope 522 is pulled, the pulling rope 522 drives the output shaft of the first motor 52 to rotate, the output shaft of the first motor 52 drives the first gear 53 to rotate, and the first gear 53 drives the first rack 54 to move, so that the first rack 54 is separated from the slot 511, and the first door body 2 and the second door body 3 are conveniently separated.

Referring to fig. 10, a first abutting surface 24 is formed at one end of the first door 2 away from the door frame 1, a second abutting surface 31 is formed at one end of the second door 3 away from the door frame 1, and the first abutting surface 24 and the second abutting surface 31 abut against each other when the first door 2 and the second door 3 are closed. The first abutting surface 24 is bonded with a first sealing strip 241, the second abutting surface 31 is provided with a first sealing groove 311 for the first sealing strip 241 to be inserted, a squeezing block 312 is integrally formed on the side wall of the first sealing groove 311, and the squeezing block 312 has the same length as the first sealing strip 241 and abuts against the first sealing strip 241. When the pressing block 312 abuts against the first sealing strip 241, the first sealing strip 241 is pressed and deformed, so that the contact area between the first sealing strip 241 and the side wall of the first sealing groove 311 is increased, and the sealing performance between the first door body 2 and the second door body 3 is further improved. The vertical projection of the pressing block 312 may be triangular or semicircular.

The implementation process of the self-locking type synchronous opening and closing miter gate in the embodiment 2 of the application is as follows: when the first door body 2 and the second door body 3 need to be closed, the piston rod of the second hydraulic cylinder 412 retracts, the two push rods 413 are pulled to move, the sliding rod 21 moves towards the midpoint between the two door frames 1 in the sliding hole 411, and meanwhile, the sliding block 212 moves towards the direction far away from the door frames 1 in the sliding groove 22 until the first abutting surface 24 abuts against the second abutting surface 31. While the first abutment surface 24 abuts against the second abutment surface 31, the first weather strip 241 gradually enters the first seal groove 311 and abuts against the pressing block 312. After the first door body 2 and the second door body 3 are closed, the first motor 52 is started to drive the first gear 53 to rotate, and the first gear 53 drives the first rack 54 to move, so that the first rack 54 is inserted into the clamping groove 511, the first door body 2 and the second door body 3 are prevented from rotating, locking is realized, and the possibility of separation of the first door body 2 and the second door body 3 is reduced.

Example 3

Referring to fig. 11 and 12, the difference from embodiment 2 is that the opening and closing device is changed, the first door body 2 is hinged with one doorframe 1, and the second door body 3 is hinged with the other doorframe 1. The opening and closing device 4 comprises a sliding plate 42, the sliding plate 42 is connected with the doorframe 1 in a sliding manner, and a driving assembly 421 is arranged on the doorframe 1 and used for driving the sliding plate 42 to slide along a direction perpendicular to a connecting line of the two doorframes 1. The driving assembly 421 is oppositely arranged along the connecting line direction of the two door frames 1, the driving assembly 421 comprises a third motor 4211, a second gear 4212 and a second rack 4213, the third motor 4211 is fixedly connected to the top wall of the door frame 1, the second gear 4212 is fixed on an output shaft of the third motor 4211, the second rack 4213 is fixed on the sliding plate 42 along the sliding direction of the sliding plate 42, and the second gear 4212 is meshed with the second rack 4213. When the sliding plate 42 needs to move, the third motor 4211 is started to drive the second gear 4212 to rotate, and the second gear 4212 drives the second rack 4213 to move, so as to drive the sliding plate 42 to move. One end of the sliding plate 42 facing the door frame 1 is fixedly connected with a T-shaped block 422, a T-shaped groove 11 is formed in the top wall of the door frame 1 along the sliding direction of the sliding plate 42, and the T-shaped block 422 is in sliding connection with the T-shaped groove 11 and is matched with the T-shaped groove.

Referring to fig. 11, displacement rods 32 are fixedly connected to the top walls of the first door body 2 and the second door body 3, and projections of the two displacement rods 32 along the connecting line direction of the two door frames 1 are overlapped. The sliding plate 42 is provided with a displacement groove 423 in an inclined manner, the displacement groove 423 is oppositely arranged along the connecting line direction of the two door frames 1, the displacement rod 32 is located in the displacement groove 423 on the same side, and the diameter of the displacement rod 32 is consistent with the width of the displacement groove 423. When the displacement rod 32 abuts against one end of the displacement groove 423 along the length direction thereof, the first door body 2 and the second door body 3 are in a closed state; when the displacement rod 32 abuts against the other end of the displacement groove 423 in the longitudinal direction thereof, the first door 2 and the second door 3 are in an open state.

The implementation process of the self-locking type synchronous opening and closing miter gate in the embodiment 3 of the application is as follows: when the first door body 2 and the second door body 3 need to be opened and closed, the third motor 4211 is started to drive the second gear 4212 to rotate, and the second gear 4212 drives the second rack 4213 to move, so as to drive the sliding plate 42 to move. The sliding plate 42 drives the first door body 2 and the second door body 3 to move relatively or oppositely by means of the matching of the displacement groove 423 and the displacement rod 32, so as to realize the synchronous opening and closing of the first door body 2 and the second door body 3.

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

Claims

1. The utility model provides a from locking-type synchronous start-stop miter gate, includes two door frames (1) of parallel arrangement, two be equipped with the first door body (2) and the second door body (3) that can close or open between door frame (1), its characterized in that: an opening and closing device (4) for driving the first door body (2) and the second door body (3) to be opened and closed synchronously is arranged between the two door frames (1).

2. The self-locking synchronous opening and closing miter gate as claimed in claim 1, wherein: the opening and closing device (4) comprises a mounting plate (43), the mounting plate (43) is arranged on two door frames (1), the first door body (2) and the second door body (3) are hinged through a rotating shaft (44), a first hydraulic cylinder (431) is arranged on the mounting plate (43), a piston rod of the first hydraulic cylinder (431) is connected with a part of the rotating shaft (44) penetrating out of the mounting plate (43), a rotating groove (434) is formed in the mounting plate (43) along the moving direction of the piston rod of the first hydraulic cylinder (431), the rotating shaft (44) is connected in the rotating groove (434) in a sliding mode, sliding rods (45) are arranged on the top walls of the first door body (2) and the second door body (3), the distance between the axis of the sliding rods (45) and the axis of the rotating shaft (44) is equal, sliding grooves (433) are formed in the mounting plate (43) along the connecting line direction of the two door frames (1), the two sliding rods (45) are both positioned in the sliding groove (433).

3. The self-locking synchronous opening and closing miter gate as claimed in claim 2, wherein: the locking device (47) used for locking after the first door body (2) and the second door body (3) are closed is further arranged on the mounting plate (43), the locking device (47) comprises a first hook (472), a second hook (473) and a rotating plate (471), the rotating plate (471) is rotatably connected onto the mounting plate (43), a connecting rod (4712) is vertically arranged at the bottom of one end, away from the first hydraulic cylinder (431), of the rotating plate (471), one end, away from the rotating plate (471), of the connecting rod (4712) penetrates through the mounting plate (43), the first hook (472) is connected with one end, through the mounting plate (43), of the connecting rod (4712), the second hook (473) is connected onto one end, facing the first hydraulic cylinder (431), of the first door body (2) or the second door body (3), a pushing block (4311) is arranged on a piston rod of the first hydraulic cylinder (431), and a piston rod of the first hydraulic cylinder (431) extends out in place, one end of the rotating plate (471), which is far away from the first hydraulic cylinder (431), is pushed by the pushing block (4311) to rotate, so that the first hook (472) is clamped with the second hook (473).

4. The self-locking synchronous opening and closing miter gate as claimed in claim 3, wherein: a pulling plate (435) is arranged on the mounting plate (43), the pulling plate (435) is located at one end, away from the piston rod of the first hydraulic cylinder (431), of the rotating plate (471), a tension spring (4351) is arranged on the pulling plate (435), and one end, away from the pulling plate (435), of the tension spring (4351) is connected with one end, facing the first hydraulic cylinder (431), of the rotating plate (471);

be equipped with sleeve (4321) on pivot (44), the piston rod of first pneumatic cylinder (431) is inserted in sleeve (4321), the piston rod of first pneumatic cylinder (431) is equipped with spacing dish (4312) towards the outer wall of the one end of pivot (44), the inner wall of the one end of pivot (44) is kept away from in sleeve (4321) orientation is equipped with spacing ring (4322), when the piston rod of first pneumatic cylinder (431) retracts, spacing dish (4312) and spacing ring (4322) butt.

5. The self-locking synchronous opening and closing miter gate as claimed in claim 1, wherein: the opening and closing device (4) comprises a fixing plate (41), the fixing plate (41) is fixed between the two door frames (1), sliding holes (411) are formed in the fixing plate (41) along the connecting line direction of the two door frames (1), sliding rods (21) are arranged on the top walls of the first door body (2) and the second door body (3), one sliding rod (21) is connected with the first door body (2) in a sliding mode along the width direction of the first door body (2), the other sliding rod (21) is connected with the second door body (3) in a sliding mode along the width direction of the second door body (3), and the two sliding rods (21) are connected in the sliding holes (411) in a sliding mode;

be equipped with second pneumatic cylinder (412) on fixed plate (41), it has two push rods (413) to articulate on the piston rod of second pneumatic cylinder (412), the one end of keeping away from second pneumatic cylinder (412) in push rod (413) is articulated with slide bar (21) of homonymy, during the piston rod withdrawal of second pneumatic cylinder (412), the first door body (2) and the second door body (3) are in the closed condition, when the piston rod of second pneumatic cylinder (412) stretches out, the first door body (2) and the second door body (3) are in the open mode, it is connected with wheel cover (211) to rotate on slide bar (21), wheel cover (211) and the inner wall butt of sliding hole (411).

6. The self-locking synchronous opening and closing miter gate as claimed in claim 5, wherein: the fixed plate (41) is rotatably connected with synchronous belt wheels (4142), the synchronous belt wheels (4142) are oppositely arranged at two ends of the sliding hole (411) along the length direction of the sliding hole (411), one synchronous belt (4143) is connected between the two synchronous belts (4143), connecting blocks (4144) are arranged on the two sliding rods (21), the two connecting blocks (4144) are connected with the synchronous belts (4143), and when the synchronous belts (4143) move, the two connecting blocks (4144) move back to back or move relatively.

7. The self-locking synchronous opening and closing miter gate as claimed in claim 6, wherein: the fixing plate (41) is fixedly connected with a second motor (4141), an output shaft of the second motor (4141) is fixedly connected with one synchronous pulley (4142), a locking gear (4145) is further fixed on the output shaft of the second motor (4141), a third hydraulic cylinder (4146) is fixedly connected onto the fixing plate (41), a piston rod of the third hydraulic cylinder (4146) is fixedly connected with a fixing block (4147), fixing teeth (4148) meshed with the locking gear (4145) are arranged on the fixing block (4147), and when the piston rod of the third hydraulic cylinder (4146) extends out, the fixing teeth (4148) are meshed with the locking gear (4145).

8. The self-locking synchronous opening and closing miter gate as claimed in claim 7, wherein: the door is characterized in that an opening preventing block (51) is fixedly connected to the top wall of the first door body (2), when the first door body (2) and the second door body (3) are closed, the opening preventing block (51) extends to the upper side of the second door body (3), a first motor (52) is fixedly connected to the top wall of the second door body (3), a first gear (53) is fixedly connected to an output shaft of the first motor (52), a first rack (54) is further arranged on the top wall of the second door body (3), a dovetail block (541) is arranged at one end, facing the second door body (3), of the first rack (54), a dovetail groove (23) in sliding connection with the dovetail block (541) is arranged on the top wall of the second door body (3), the dovetail block (541) is in sliding connection with the dovetail block (23), the first gear (53) is meshed with the first rack (54), and the first rack (54) slides along the dovetail groove in the direction perpendicular to the connection line of the two door frames (1), and a clamping groove (511) for inserting the first rack (54) is formed in the anti-opening block (51).

9. The self-locking synchronous opening and closing miter gate as claimed in claim 1, wherein: the opening and closing device (4) comprises a sliding plate (42), the sliding plate (42) is connected with the door frames (1) in a sliding mode, a driving assembly (421) for driving the sliding plate (42) to slide along the direction perpendicular to the connecting line of the two door frames (1) is arranged on each door frame (1), displacement rods (32) are arranged on the top walls of the first door body (2) and the second door body (3), and the projections of the two displacement rods (32) along the connecting line direction of the two door frames (1) are overlapped;

first door body (2) are articulated with a door frame (1), second door body (3) are articulated with another door frame (1), displacement groove (423) have been seted up to slope on slide (42), displacement groove (423) set up along the line direction of two door frames (1) relatively, displacement pole (32) are located displacement groove (423) of homonymy, during displacement pole (32) and the one end butt of displacement groove (423), first door body (2) and second door body (3) are in the closed condition, during displacement pole (32) and the other end butt of displacement groove (423), first door body (2) and second door body (3) are in the open condition.

10. The self-locking type synchronous opening and closing miter gate as claimed in claim 9, wherein: the driving assembly (421) comprises a third motor (4211), a second gear (4212) and a second rack (4213), the third motor (4211) is fixed on the top wall of the door frame (1), the second gear (4212) is fixed on an output shaft of the third motor (4211), the second rack (4213) is fixed on the sliding plate (42) along the sliding direction of the sliding plate (42), and the second gear (4212) is meshed with the second rack (4213).