CN213201992U

CN213201992U - Safety door electric protection device for indoor construction elevator

Info

Publication number: CN213201992U
Application number: CN202022069785.1U
Authority: CN
Inventors: 姚徐陈; 陈新建; 陈志祥; 徐佳翔; 蒋汉林; 龚鑫; 蒋亚明; 陈志军
Original assignee: Gaoqida Elevator Jiangsu Co ltd
Current assignee: Gaoqida Elevator Jiangsu Co ltd
Priority date: 2020-09-21
Filing date: 2020-09-21
Publication date: 2021-05-14
Anticipated expiration: 2030-09-21

Abstract

The utility model relates to an emergency exit electrical protection device that indoor construction elevator used relates to lift technical field, aims at solving emergency exit and oneself switch door and takes place to forget easily, leads to construction elevator department to open, leads to the technical problem that personnel fall easily, and it is including being used for fixing the fixed frame in elevartor shaft department, fixed frame has the door that shelters from along its length direction slides, fixed frame is located and shelters from the door top and is provided with the rotation lead screw, rotation lead screw one end is provided with the drive and rotates lead screw pivoted driving piece, the driving piece is connected with controlling means, controlling means is connected with and is used for detecting the cage and whether is located the photoelectric detection device of elevartor shaft department. This application has that freight finishes the back and closes the effect in order to reduce the potential safety hazard with the shutter door automatically.

Description

Safety door electric protection device for indoor construction elevator

Technical Field

The application relates to the field of elevators, in particular to an electrical protection device for an emergency exit of an indoor construction elevator.

Background

Construction elevators are generally referred to as construction elevators, but construction elevators comprise a broader definition and construction platforms also belong to the construction elevator series. The simple construction elevator is a manned cargo-carrying construction machine frequently used in buildings, the riding is comfortable and safe due to the unique box body structure, the construction elevator is usually matched with a tower crane on a construction site, the general load capacity is 0.3-3.6 tons, and the running speed is 1-96M/min.

In the related technology, there is a chinese patent with application number CN201820706581.4, disclosing a construction elevator safety door, especially relating to the safety door technology field, solving the use problem of construction elevator safety door, including safety door and counterweight frame, the counterweight frame has a mounting part and a fixing part, the mounting part and the fixing part are both frame structure, and the mounting part and the fixing part are respectively provided with a mounting surface for assembling the safety door and a fixing surface connected with floor base surface, the mounting surface and the fixing surface are mutually vertical to each other to form L-shaped structure, the fixing part is provided with a plurality of support rods, the safety door is movably assembled with the mounting part, the safety door rotates with the connection point with the mounting part as the rotation center, and the rotation plane of the safety door is parallel with the fixing surface, facilitating the face-to-face communication between the operator and the constructor after the construction elevator arrives at a certain floor, and preventing the constructor from opening the, the potential safety hazard of the old safety door is avoided, and the safety door is convenient to install, disassemble and use.

Aiming at the related technologies, the inventor thinks that the safety door is easy to forget to open and close the door, so that the construction elevator is opened, and the personnel are easy to fall.

SUMMERY OF THE UTILITY MODEL

In order to improve the potential safety hazard that the emergency exit that operating personnel forgot to lead to does not close and bring, this application provides an emergency exit electrical protection device that indoor construction elevator used.

The application provides a safety door electrical protection device that indoor construction elevator used adopts following technical scheme:

the utility model provides an emergency exit electrical protection device that indoor construction elevator used, is including being used for fixing the fixed frame in elevartor shaft department, fixed frame has the shutter door along its length direction slides, fixed frame is located the shutter door top and is provided with the rotation lead screw, it is provided with the drive and rotates lead screw pivoted driving piece to rotate lead screw one end, the driving piece is connected with controlling means, controlling means is connected with and is used for detecting the cage and whether be located the photoelectric detection device of elevartor shaft department.

By adopting the technical scheme, the photoelectric detection device detects whether the cage rises to the elevator shaft, when the cage rises to the elevator shaft, light rays emitted by the photoelectric detection device are emitted back to the photoelectric detection device by the cage, and the control device receives signals and controls the rotary screw rod to rotate at the moment, so that the shielding door moves, the elevator shaft is exposed, and goods can be transported out of the cage in the elevator shaft; and when the cage moves to other positions, the photoelectric detection device can not detect the cage, the low level is output at the moment, and the control device controls the driving piece to rotate reversely, so that the blocking door automatically blocks the elevator shaft, and the safety efficiency of the construction elevator is greatly improved.

Preferably, the fixed frame is provided with an alarm device, and the alarm device is connected to the control device to give an alarm when the cage is positioned at the elevator shaft.

Through adopting above-mentioned technical scheme, alarm device's setting is convenient for be located elevartor shaft department at the cage and is sheltered from the door and report to the police when opening to suggestion passing operating personnel notices safety, reduces the probability that operating personnel does not notice and drop to in the elevartor shaft.

Preferably, the fixed frame bottom is provided with the groove that slides that supplies to shelter from the door removal, the inslot lateral wall that slides is provided with the lubricant film.

Through adopting above-mentioned technical scheme, the setting of groove of sliding is convenient for provide the route for sheltering from the door removal, and the setting of lubricant film has reduced the friction between sheltering from door and the fixed frame, and the sheltering from door of being more convenient for removes.

Preferably, the bottom of the shielding door is provided with a movable roller, and the side walls of the bottom of the shielding door along the thickness direction are provided with universal balls which can be abutted against the inner side wall of the sliding groove.

Through adopting above-mentioned technical scheme, the sliding friction that removes the gyro wheel and will shelter from between door and the groove diapire that slides truns into rolling friction, and the setting up of universal ball makes the contact point that shelters from between door and the groove lateral wall that slides become rolling friction to shelter from the friction between door and the groove that slides greatly reduced.

Preferably, a forced switch for starting the driving piece is arranged on the fixing frame.

Through adopting above-mentioned technical scheme, the setting of forcing the switch is convenient for force the start to the driving piece for will sheltering from the door and open when special conditions such as elevartor shaft need overhaul, thereby guarantee to operate.

Preferably, the two ends of the sliding groove in the length direction of the shielding door are respectively provided with an organ cover.

Through adopting above-mentioned technical scheme, the setting of organ cover is convenient for shelter from the groove top that slides to reduce in the freight transportation debris from the groove top that slides and fall into the groove that slides and influence and vibrate the removal that shelters from the door.

Preferably, the two ends of the organ cover are respectively provided with an installation block, and the end wall of the shielding door and the end wall of the sliding groove are respectively provided with an installation groove matched with the installation blocks.

Through adopting above-mentioned technical scheme, installation piece and mounting groove matched with set up and are convenient for install the organ cover at the both ends that shelter from the door to be convenient for fix the organ cover steadily at the both ends that shelter from the door.

Preferably, the end wall of the shielding door and the end wall of the sliding groove are positioned at the top of the mounting groove and are provided with embedding grooves, and the embedding grooves are communicated with the mounting groove and are used for placing the mounting block and sliding into the mounting groove.

Through adopting above-mentioned technical scheme, thereby the embedding groove communicates with each other with the mounting groove and is convenient for install the installation piece into the mounting groove, and then is convenient for organ cover's quick dismantlement so that clean.

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

1. by adopting the technology that the fixing frame, the shielding door, the rotating screw rod, the driving piece, the forced switch, the alarm device, the control device and the photoelectric detection device are matched, the shielding door can be closed automatically to shield the elevator shaft when goods do not need to be conveyed, and the potential safety hazard is greatly reduced;

2. the sliding groove, the lubricating layer, the movable roller and the universal ball are matched, so that the effect of greatly reducing the friction between the shielding door and the fixed frame is achieved;

3. through adopting organ cover, installation piece, mounting groove and embedding groove matched with technique to the production is convenient for shelter from in order to reduce debris and drop the effect that influences the sliding of shielding door to the groove top that slides.

Drawings

FIG. 1 is a schematic structural diagram of a main body of an electrical protection device of a safety door according to an embodiment of the present application;

FIG. 2 is a schematic diagram for showing a structure at a sliding groove in the embodiment of the present application;

FIG. 3 is an enlarged schematic view of the structure of FIG. 2 for point A;

fig. 4 is an enlarged schematic view of the structure of fig. 3 for the point B.

Description of reference numerals: 1. a fixing frame; 10. an opening; 11. a sliding groove; 111. a lubricating layer; 2. a shutter door; 21. rotating the screw rod; 211. a drive member; 2111. a forced switch; 212. a control device; 213. a photoelectric detection device; 214. an alarm device; 22. moving the roller; 221. a support plate; 23. a ball transfer unit; 3. an organ cover; 31. mounting blocks; 311. a round bar; 312. a circular plate; 4. mounting grooves; 41. and (4) embedding the groove.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses emergency exit electrical protection device that indoor construction elevator used. Referring to fig. 1, the safety door electric protection apparatus for an indoor construction elevator includes a fixing frame 1 for fixing at an elevator shaft, the fixing frame 1 may be fixed on a wall surface by expansion bolts, and an opening 10 in the middle of the fixing frame 1 is aligned with the elevator shaft so that goods in a cage can be delivered into a floor from the opening 10 in the middle of the fixing frame 1.

Referring to fig. 1, a shielding door 2 slides on a fixed frame 1 along the length direction of the fixed frame, a rotating screw rod 21 is rotatably connected to the top of the fixed frame 1 at the shielding door 2 through a bearing, a driving part 211 for driving the rotating screw rod 21 to rotate is inserted into one end of the rotating screw rod 21, and the driving part 211 can be a servo motor. The fixed frame 1 is bolted with a force switch 2111 for actuating the drive 211, the force switch 2111 being fixed to the surface of the fixed frame 1 remote from the elevator shaft in order to force the opening of the shutter door 2 in special cases.

Referring to fig. 1, the driving member 211 is connected to a control device 212, the control device 212 is a PLC controller, the control device 212 is connected to a photoelectric detection device 213 for detecting whether the cage is located in the elevator shaft, the photoelectric detection device 213 may be a diffuse reflection type photoelectric switch, in a normal case, light emitted from the photoelectric detection device 213 is projected into the elevator shaft, when the cage rises to be flush with the opening 10 of the elevator shaft to transport goods, the light emitted from the photoelectric detection device 213 is reflected back to the photoelectric detection device 213 by the cage, at this time, the photoelectric detection device 213 emits a control signal to the control device 212, and the control device 212 controls the driving member 211 to be started to move the blocking door 2 away.

Referring to fig. 1, an alarm device 214 is fixed on the fixing frame 1 through bolts, the alarm device 214 is an audible and visual alarm, and the alarm device 214 is connected to the control device 212 to give an alarm when the cage is located at the elevator shaft, that is, the shielding door 2 is opened, so as to remind an operator of safety.

Referring to fig. 2 and 3, fixed frame 1 bottom is provided with the groove 11 that slides that supplies to shelter from door 2 and remove, and 11 inside wall coatings in the groove that slides have a lubricating layer 111, and lubricating layer 111 is polytetrafluoroethylene, and the coating surface friction coefficient that polytetrafluoroethylene formed is less, therefore can play the effect of self-lubricating when sheltering from door 2 and removing.

Referring to fig. 3, a support plate 221 is welded to the bottom of the blocking door 2, and a moving roller 22 is rotatably connected to the support plate 221 through a rotation shaft. The bottom of the shielding door 2 is provided with a universal ball 23 which can be inconsistent with the inner side wall of the sliding groove 11 through a bolt on the side walls of the two sides of the thickness direction, and the universal ball 23 is inconsistent with the side wall of the sliding groove 11, so that the shielding door 2 is convenient to move.

Referring to fig. 3 and 4, the two ends of the sliding groove 11 in the length direction of the shutter door 2 are respectively provided with an organ cover 3, the two ends of the organ cover 3 are respectively integrally formed with an installation block 31, the installation block 31 is composed of a round rod 311 and a round plate 312, the end wall of the shutter door 2 and the end wall of the sliding groove 11 are respectively provided with an installation groove 4 matched with the installation block 31, and the installation block 31 is inserted into the installation groove 4 so as to fix the organ cover 3 on the end wall of the shutter door 2 or the end wall of the sliding groove 11.

Referring to fig. 3 and 4, the end wall of the shielding door 2 and the end wall of the sliding groove 11 are provided with an embedding groove 41 at the top of the installation groove 4, and the embedding groove 41 has the same shape and size as the circular plate 312; the embedding groove 41 is communicated with the mounting groove 4 and is used for placing the mounting block 31 and sliding into the mounting groove 4, and the round rod 311 is in interference fit with the embedding groove 41, so that the organ cover 3 is convenient to disassemble and clean.

The implementation principle of the electric protection device of the safety door for the indoor construction elevator is as follows:

in the process of moving the construction elevator, when the cage moves to be flush with the opening 10 of the fixed frame 1, the light rays detected by the photoelectric detection device 213 are reflected back to the photoelectric detection device 213 by the outer side wall of the cage, the photoelectric detection device 213 sends signals to the control device 212, and the control device 212 controls the rotation of the rotating screw rod 21. Since the rotary screw 21 is screw-coupled to the shutter door 2, the shutter door 2 is removed from the elevator shaft, facilitating the transportation of goods from the elevator.

When the cargo is transported, the cage is driven by the elevator to move, and at this time, the photoelectric detection device 213 cannot detect that the optical signal outputs a low level to the control device 212, and the control device 212 controls the driving member 211 to rotate reversely. The rotating screw rod 21 is driven by the driving piece 211 to rotate reversely, so that the shielding door 2 is driven to move to the elevator shaft to shield the outlet of the elevator shaft. Realized that automatic will shelter from door 2 and close, effectively reduced because of operating personnel forgets to close the potential safety hazard that shelters from door 2 and lead to.

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 an emergency exit electrical protection device that indoor construction elevator used which characterized in that: including being used for fixing fixed frame (1) in elevartor shaft department, fixed frame (1) slides along its length direction has shielding door (2), fixed frame (1) is located shielding door (2) top and is provided with rotation lead screw (21), it is provided with drive rotation lead screw (21) pivoted driving piece (211) to rotate lead screw (21) one end, driving piece (211) are connected with controlling means (212), controlling means (212) are connected with and are used for detecting whether the cage is located photoelectric detection device (213) of elevartor shaft department.

2. The safety door electric protection device for an indoor construction elevator according to claim 1, characterized in that: an alarm device (214) is arranged on the fixed frame (1), and the alarm device (214) is connected to the control device (212) to give an alarm when the suspension cage is not positioned at the elevator shaft.

3. The safety door electric protection device for an indoor construction elevator according to claim 1, characterized in that: the bottom of the fixed frame (1) is provided with a sliding groove (11) for the blocking door (2) to move, and the inner side wall of the sliding groove (11) is provided with a lubricating layer (111).

4. The safety door electric protection device for an indoor construction elevator according to claim 3, characterized in that: the bottom of the shielding door (2) is provided with a movable roller (22), and the side walls of the two sides of the bottom of the shielding door (2) along the thickness direction are provided with universal balls (23) which can be abutted against the inner side wall of the sliding groove (11).

5. The safety door electric protection device for an indoor construction elevator according to claim 1, characterized in that: and a forced switch (2111) for starting the driving piece (211) is arranged on the fixed frame (1).

6. The safety door electric protection device for an indoor construction elevator according to claim 3, characterized in that: and organ covers (3) are respectively arranged at two ends of the sliding groove (11) in the length direction of the shielding door (2).

7. The safety door electric protection device for an indoor construction elevator according to claim 6, wherein: and mounting blocks (31) are respectively arranged at two ends of the organ cover (3), and mounting grooves (4) matched with the mounting blocks (31) are respectively arranged on the end wall of the shielding door (2) and the end wall of the sliding groove (11).

8. The emergency gate electric protection device for the indoor construction elevator according to claim 7, wherein: the blocking door (2) end wall and the sliding groove (11) end wall are located at the top of the installation groove (4) and are provided with embedding grooves (41), and the embedding grooves (41) are communicated with the installation groove (4) and are used for placing the installation block (31) and sliding into the installation groove (4).