CN221027282U - Remote opening and closing control device suitable for overhead travelling crane safety door - Google Patents
Remote opening and closing control device suitable for overhead travelling crane safety door Download PDFInfo
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- CN221027282U CN221027282U CN202322761797.4U CN202322761797U CN221027282U CN 221027282 U CN221027282 U CN 221027282U CN 202322761797 U CN202322761797 U CN 202322761797U CN 221027282 U CN221027282 U CN 221027282U
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- safety door
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- crown block
- opening
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- 230000005484 gravity Effects 0.000 abstract description 3
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- Control And Safety Of Cranes (AREA)
Abstract
The utility model discloses a remote opening and closing control device suitable for a crown block safety door, which comprises a door opening device and a door closing device which are arranged on the safety door; the safety door is rectangular and frame-shaped and comprises a first upright rod positioned on the right side and a second upright rod positioned on the left side, wherein the second upright rod is the rotating shaft position of the safety door; after the device is installed, an upper and lower crown block personnel can directly operate and control the opening and closing of the safety door of the crown block by two opening and closing operation rods installed on the side face of the crown block end beam and standing on the crown block corridor for a long distance, so that the upper and lower crown block personnel can open and close the crown block safety door without standing on the top of a vertical ladder special for the upper and lower crown block with the height of 1.05 m; meanwhile, the defect that the safety door is vibrated in the normal running process of the overhead travelling crane is directly avoided due to the gravity action of the opening and closing rod; the device has simple structure and convenient operation, and is suitable for opening and closing all overhead travelling crane safety doors; after the device is used, the risk that the upper and lower crown block personnel fall from a high place is directly avoided.
Description
Technical Field
The utility model belongs to the technical field of crown block equipment, and particularly relates to a remote opening and closing control device suitable for a crown block safety door.
Background
At present, when the crown block is up and down, the crown block enters from the safety doors at the two sides of the end beam, limit switches are arranged on the safety doors designed for improving the intrinsic safety coefficient of the crown block, and if the safety doors are not closed, the crown block is powered off, and then the crown block cannot be started normally.
The original safety door locking device of the crown block is a guillotine door pin, and the locking device has two defects in the use process;
Defect 1: when an operator climbs onto the overhead travelling crane, the operator climbs onto the upper part of a 1.05m high vertical ladder, stands on the top of the vertical ladder with feet, grabs a fixed door shaft upright rod of the safety door by the left hand, stretches into the inner side of the safety door by the right hand, pushes the safety door open after using fingers to lift a guillotine door pin, and at the moment, the operator grabs a door frame of the safety door by the two hands of the operator, and steps on the overhead travelling crane on the vertical ladder on the side of the end beam of the overhead travelling crane by the feet; when an operator goes down the crown block, the safety door is opened at the upper part of the crown block end beam platform, the two hands grasp the safety door frame, the feet step on the straight ladder on the side face of the end beam, the operator goes down to the top of the special straight ladder for pedaling the vehicle, the left hand grasps the vertical rod of the door shaft of the safety door after the feet step on the safety door, the right hand pulls the safety door back to be closed, the safety door is tensioned in place by using the left hand, the right hand stretches into the inner side of the safety door to pick up the guillotine type door pin to lock the safety door by using fingers, and then the two hands grasp the straight ladder on the side face of the end beam, and the straight ladder for pedaling the vehicle goes down to the crown block corridor. The personnel have the risk that the eminence falls in this overhead traveling crane in-process about.
Defect 2: the overhead traveling crane is in normal hoisting use, and because the excessive emergency exit door of vibration shakes out and leads to the whole overhead traveling crane outage, if the dolly that the contactor control is just hanging the heavy object in-process of walking at this moment suddenly shakes out the emergency exit, lead to whole overhead traveling crane outage and will run out of control and continue to slide, directly cause the risk of collision, crowded wound to ground equipment or operating personnel. If the whole crane is powered off due to the vibration of the safety door in the lifting or descending operation process of the crane lifting mechanism, great impact is caused on spare parts such as a speed reducer, a coupling, a transmission shaft, a steel wire rope and the like of the crane lifting mechanism, and abnormal damage is directly caused on crane equipment.
Disclosure of utility model
The utility model provides a remote opening and closing control device suitable for a safety door of a crown block, and aims to solve the problems that potential safety hazards are large when an original safety door locking device of the crown block is closed, and the whole crown block is powered off due to the fact that a safety door pin is vibrated open when the crown block is excessively vibrated.
Therefore, the utility model adopts the following technical scheme:
The remote opening and closing control device suitable for the overhead travelling crane safety door comprises a door opening device and a door closing device which are arranged on the safety door; the safety door is rectangular and frame-shaped and comprises a first upright rod positioned on the right side and a second upright rod positioned on the left side, wherein the second upright rod is the rotating shaft position of the safety door;
The door opening device comprises a plug-in door lock vertically installed on a first vertical rod, a matched door pin shaft is welded below the plug-in door lock, the plug-in door lock is connected with a first ejector rod which vertically extends downwards through a lifting rod, and the lower end of the first ejector rod extends to a crown block beam body platform; lifting the first ejector rod plug-in type door lock and the door pin shaft to separate from the safety door for opening, and falling the first ejector rod plug-in type door lock and the door pin shaft to combine with the safety door for closing; a first guide pipe is arranged on the first ejector rod in a penetrating way and is fixed on the safety door frame;
The door closing device comprises a sliding sleeve horizontally welded at the bottom of the overhead travelling crane safety door, a second vertical rod is welded on the second vertical rod, a second ejector rod is arranged in the second guide pipe in a penetrating manner, a horizontal door closing sliding rod is welded at the top end of the second ejector rod, and the door closing sliding rod is tightly attached to the lower edge of the safety door and penetrates through the sliding sleeve; the second ejector rod is rotated to drive the safety door to rotate.
Further, the left side of the safety door is connected with the door frame through a hinge, and a double-wing compression spring is further connected between the left side of the safety door and the door frame and used for bouncing the safety door.
Further, the lower end of the first ejector rod is connected with a door opening operation handle.
Further, the lower end of the second ejector rod is connected with a door closing operation handle.
The utility model has the beneficial effects that:
After the device is installed, an upper and lower crown block personnel can directly operate and control the opening and closing of the safety door of the crown block by two opening and closing operation rods installed on the side face of the crown block end beam and standing on the crown block corridor for a long distance, so that the upper and lower crown block personnel can open and close the crown block safety door without standing on the top of a vertical ladder special for the upper and lower crown block with the height of 1.05 m; meanwhile, the defect that the safety door is vibrated in the normal running process of the overhead travelling crane is directly avoided due to the gravity action of the opening and closing rod; the device has simple structure and convenient operation, and is suitable for opening and closing all overhead travelling crane safety doors; after the device is used, the risk that the upper and lower crown block personnel fall from a high place is directly avoided.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a left side view of the safety door lock of the present utility model;
In the figure: the safety railing comprises a 1-crown block safety railing, a 2-crown block Liang Tiping, a 3-crown block end beam, a 4-crown block large vehicle rail, a 5-first safety door hinge, a 6-second safety door hinge, a 7-third safety door hinge, an 8-first vertical rod, a 9-compression spring, a 10-second vertical rod, a 11-safety door, a 12-second guide pipe, a 13-door closing operation handle, a 14-crown block end beam side vertical ladder, a 15-lifting rod, a 16-door lock, a 17-door pin shaft, a 18-first guide pipe, a 19-door opening operation handle, a 20-sliding sleeve, a 21-door closing sliding rod, a 22-crown block safety door limit switch, a 23-crown block pass platform, a 24-upper and lower crown block special vertical ladder, a 25-crown block large vehicle wheel set, a 26-sliding lock tongue, a 27-locking frame sliding sleeve, a 28-first ejector rod and a 29-second ejector rod.
Detailed Description
The utility model is further described with reference to the drawings and the specific embodiments below:
As shown in fig. 1 and 2, the overhead traveling crane safety rail comprises an overhead traveling crane beam body platform 2, an overhead traveling crane end beam 3, an overhead traveling crane large crane rail 4, a first safety door hinge 5, a second safety door hinge 6, a third safety door hinge 7, a first vertical rod 8, a compression spring 9, a second vertical rod 10, a safety door 11, a second guide tube 12, a door closing operation handle 13, an overhead traveling crane end beam side vertical ladder 14, a lifting rod 15, a door lock 16, a door pin shaft 17, a first guide tube 18, a door opening operation handle 19, a sliding sleeve 20, a door closing sliding rod 21, an overhead traveling crane safety door limit switch 22, an overhead traveling crane corridor platform 23, an up-and-down overhead traveling crane special climbing ladder 24, an overhead traveling crane large crane truck wheel set 25, a sliding lock tongue 26, a lock frame sliding sleeve 27, a first ejector rod 28 and a second ejector rod 29.
One part is a door opening device, a set of plug-in door lock 16 is vertically arranged on a first vertical rod 8, a matched door pin shaft 17 is welded on a safety door 11, a double-wing compression spring 9 is arranged at a second vertical rod 10, the plug-in door lock 16 is connected with a first ejector rod 28 with the length of 1.1m and the diameter of 10mm through a lifting rod 15, and the first ejector rod 28 is arranged in a first guide tube 18 with the length of 900 mm. When the safety door is opened, an operator only needs to stand at the crown block corridor platform 23 to grasp the door opening operation handle 19 by a right hand, the ring handle of the door opening operation handle 19 is slightly pushed upwards by 15mm, and meanwhile, the door lock knife-shaped lock tongue 26 is lifted, and at the moment, the crown block safety door pin shaft 17 is disconnected and can be automatically opened under the action of the double-wing compression spring 9.
The other part is a door closing device, a sliding sleeve 20 with the inner diameter of 30mm and the length of 40mm is welded and installed at the bottom of a crown block safety door 11, a second guide pipe 12 with the inner diameter of 30mm and the length of 1m is welded and installed at the position of a second vertical rod 10 in parallel, a second ejector rod 29 with the diameter of 20mm and the length of 1.2m is penetrated into the second guide pipe 12, a door closing sliding rod 21 with the diameter of 20mm and the length of 250mm is welded at the top end of the second ejector rod 29, the installation position of the door closing sliding rod 21 is parallel to the lower bottom of the safety door 11, and penetrates into the sliding sleeve 20 at the bottom of the safety door 11. The bottom of the second ejector rod 29 is welded with a door closing operation handle 13 with the diameter of 20mm and the length of 120mm, and the door closing sliding rod 21 and the door closing operation handle 13 are in a parallel state. When the safety door 11 is closed, an operator only needs to stand on the crown block corridor platform 23 to grasp the door closing operation handle 13 by a left hand and push the handle rightwards, at the moment, the safety door 11 can be closed by the acting force of the door closing sliding rod 21, when the safety door pin shaft 17 collides with the semicircular arc of the sliding lock tongue 26 on the safety door frame 8, the lock tongue 26 is lifted upwards in the lock sleeve 27, and the moment when the door pin shaft 17 enters the mortise lock 16, the lock tongue 26 falls back to the original position under the action of the gravity of the first ejector rod 28, so that the safety door 11 is locked.
Claims (4)
1. The remote opening and closing control device suitable for the overhead travelling crane safety door is characterized by comprising a door opening device and a door closing device which are arranged on the safety door; the safety door is rectangular and frame-shaped and comprises a first upright rod positioned on the right side and a second upright rod positioned on the left side, wherein the second upright rod is the rotating shaft position of the safety door;
The door opening device comprises a plug-in door lock vertically installed on a first vertical rod, a matched door pin shaft is welded below the plug-in door lock, the plug-in door lock is connected with a first ejector rod which vertically extends downwards through a lifting rod, and the lower end of the first ejector rod extends to a crown block beam body platform; lifting the first ejector rod plug-in type door lock and the door pin shaft to separate from the safety door for opening, and falling the first ejector rod plug-in type door lock and the door pin shaft to combine with the safety door for closing; a first guide pipe is arranged on the first ejector rod in a penetrating way and is fixed on the safety door frame;
The door closing device comprises a sliding sleeve horizontally welded at the bottom of the overhead travelling crane safety door, a second vertical rod is welded on the second vertical rod, a second ejector rod is arranged in the second guide pipe in a penetrating manner, a horizontal door closing sliding rod is welded at the top end of the second ejector rod, and the door closing sliding rod is tightly attached to the lower edge of the safety door and penetrates through the sliding sleeve; the second ejector rod is rotated to drive the safety door to rotate.
2. The device for remotely opening and closing the safety door of the crown block according to claim 1, wherein the left side of the safety door is linked with the door frame through a hinge, and a double-wing compression spring is further connected between the left side of the safety door and the door frame and used for bouncing the safety door.
3. The remote opening and closing control device for the overhead traveling crane safety door according to claim 2, wherein the lower end of the first ejector rod is connected with a door opening operation handle.
4. The remote opening and closing control device for the overhead traveling crane safety door according to claim 3, wherein the lower end of the second ejector rod is connected with a door closing operation handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322761797.4U CN221027282U (en) | 2023-10-16 | 2023-10-16 | Remote opening and closing control device suitable for overhead travelling crane safety door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322761797.4U CN221027282U (en) | 2023-10-16 | 2023-10-16 | Remote opening and closing control device suitable for overhead travelling crane safety door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221027282U true CN221027282U (en) | 2024-05-28 |
Family
ID=91172305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322761797.4U Active CN221027282U (en) | 2023-10-16 | 2023-10-16 | Remote opening and closing control device suitable for overhead travelling crane safety door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221027282U (en) |
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2023
- 2023-10-16 CN CN202322761797.4U patent/CN221027282U/en active Active
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