CN214424371U - Locking device for roller shutter door - Google Patents

Abstract

The utility model provides a locking device for roller shutter door, which is characterized in that the locking device comprises a locking box body, a motor, a worm gear, a driven gear, a driving gear, a chain, a gear shaft and a locking mechanism, wherein the locking box body is arranged on the upper inner wall of a roller shutter rotating shaft, the motor is arranged on the inner wall at the top end of the locking box body, the driving gear is arranged at the output end of the motor, the number of the driving gears is 2, the driven gears are respectively arranged at the left side and the right side below the motor, the driving gear is respectively connected with the driven gear through the chain, the driven gear is arranged inside the locking box body through the gear shaft, the worm gear is arranged on the gear shaft, the locking mechanism is arranged between the worm gears, the rotating shaft is clamped through a clamp, the rotating shaft can not rotate under the condition that the motor brake block of the electric roller shutter door is seriously worn or loosened, and the roller shutter door can not fall down, the occurrence of accidents is reduced, and the danger is reduced.

Description

Locking device for roller shutter door

Technical Field

The utility model relates to a rolling slats door field especially relates to a locking means for rolling slats door.

Background

The rolling door of the technology is not provided with a locking device, when a worker carries goods or normally moves, because the rolling door can not recognize whether the operation is error touch or not after touching a switch due to operation error, the rolling door can not automatically descend, if the worker is positioned below the rolling door at the moment, the locking device for the roller shutter door is designed according to the problems in the prior art, the main structure of the locking device is that a termination switch is arranged on a switch, after the termination switch is pressed down, the circuit is powered off, the upper switch and the lower switch for controlling the roller shutter door lose control over the roller shutter door, but the structure still has problems, when the roller shutter door is used for too long time, the condition that the motor brake pad of the electric roller shutter door is seriously worn or loosened can be caused, the consequence that the roller shutter door automatically drops after the power of a driving motor is cut off can be caused, and safety accidents are easily caused.

Disclosure of Invention

In light of the above technical problems, the utility model provides a locking device for a roller shutter door, which is characterized in that the locking device comprises a locking box body, a motor, a worm wheel, a driven gear, a driving gear, a chain, a gear shaft and a locking mechanism, the locking box body is arranged on the inner wall above the rolling door rotating shaft, the inner wall at the top end of the locking box body is provided with a motor, the output end of the motor is provided with 2 driving gears, the left side and the right side below the motor are respectively provided with a driven gear, the driving gears are respectively connected with driven gears through chains, the driven gears are arranged in the locking box body through gear shafts, the gear shaft is provided with 2 worm gears which are arranged in front of the driven gear, a locking mechanism is arranged between the worm gears and is arranged in the center of the inner wall of the bottom end of the locking box body;

locking mechanism includes backup pad, tool to lock, screw thread bucket, worm, slider, spout, the spout has been seted up to the four corners department of backup pad, the terminal surface symmetry is provided with the tool to lock before the backup pad, the upper and lower both ends of tool to lock rear end face are provided with the slider respectively, the backup pad passes through slider and spout sliding connection, the outside of tool to lock is provided with the screw thread bucket, set up threaded hole on the outer terminal surface of screw thread bucket, the worm is installed to the outer end of screw thread bucket, the inboard one end of worm is provided with the screw thread, the threaded hole at the screw thread bucket is installed to the inboard one end of worm, the worm is two and is bilateral symmetry and distributes, the outside one end of worm is connected with the worm wheel meshing, the worm is fixed in on the lower terminal surface of box through the bearing frame.

The utility model has the advantages that:

the utility model adds the locking device, when the rolling door rises, the external locking switch is pressed, the rolling door control switch is disconnected at the moment, the control switch loses the control of the driving motor, the power of the locking device is turned on, the motor is electrified to drive the driving gear to rotate, the two driving gears are two, the two driving gears respectively drive the driven gear to rotate through the chains, the driven gear is coaxial with the worm wheel, the worm wheel synchronously rotates, the worm wheel drives the worm to rotate, the two side clamps are closed to the middle part at the moment, the rotating shaft is locked, the locking switch is pressed through adding the locking device, when the operator operation error touches the descending switch, the control switch loses the control of the driving motor due to the power failure of the driving motor, the clamp clamps clamp the rotating shaft, the rotating shaft can not rotate under the condition that the motor brake block of the electric rolling door is seriously worn or loosened, the rolling door can not fall down, the occurrence of accidents is reduced, and the danger is reduced.

Drawings

Fig. 1 is a front sectional view of the present invention;

fig. 2 is a side cross-sectional view of the present invention;

fig. 3 is an enlarged view of a portion of fig. 2 according to the present invention.

As shown in the figure: 1-locking box body, 2-motor, 3-supporting plate, 4-lockset, 5-thread barrel, 6-worm, 7-worm wheel, 8-driven gear, 9-driving gear, 10-chain, 11-gear shaft, 12-slide block and 13-slide groove.

Detailed Description

Example 1

The utility model provides a locking device for a roller shutter door, which is characterized by comprising a locking box body 1, a motor 2, a worm wheel 7 and a driven gear 8, the roller shutter comprises a driving gear 9, chains 10, a gear shaft 11 and a locking mechanism, wherein a locking box body 1 is installed on the inner wall above a roller shutter rotating shaft, a motor 2 is installed on the inner wall at the top end of the locking box body 1, the driving gear 9 is installed at the output end of the motor 2, the number of the driving gears 9 is 2, driven gears 8 are respectively arranged on the left side and the right side below the motor 2, the driving gear 9 is respectively connected with the driven gears 8 through the chains 10, the driven gears 8 are installed inside the locking box body 1 through the gear shaft 11, worm gears 7 are installed on the gear shaft 11, 2 worm gears 7 are arranged, the worm gears 7 are located in front of the driven gears 8, the locking mechanism is installed between the worm gears 7, and the locking mechanism is installed in the center of the inner wall at the bottom end of the locking box body 1;

locking mechanism includes backup pad 3, tool to lock 4, screw thread bucket 5, worm 6, slider 12, spout 13 has been seted up to backup pad 3's four corners department, 3 preceding terminal surface symmetries of backup pad are provided with tool to lock 4, the upper and lower both ends of 4 rear end faces of tool to lock are provided with slider 12 respectively, backup pad 3 passes through slider 12 and spout 13 sliding connection, the outside of tool to lock is provided with screw thread bucket 5, set up threaded hole on the outer terminal surface of screw thread bucket 5, worm 6 is installed to the outer end of screw thread bucket 5, the inboard one end of worm 6 is provided with the screw thread, the threaded hole at screw thread bucket 5 is installed to the inboard one end of worm 6, worm 6 is two and is bilateral symmetry and distributes, the outside one end and the worm wheel 8 meshing of worm 6 are connected, worm 6 is fixed in on the lower terminal surface of box through the bearing frame.

Example 2

When the rolling door rises, an external locking switch is pressed, the rolling door control switch is disconnected at the moment, the control switch loses the control of a driving motor, a locking device is powered on, a motor 2 is powered on, the output end of the motor 2 rotates, the output end of the motor 2 drives a driving gear 9 to rotate, two driving gears 9 are provided, the two driving gears 9 respectively drive driven gears 8 on the left side and the right side below the rolling door to rotate through chains 10, the driven gears 8 and a worm wheel 7 are coaxially arranged on a gear shaft 11, the worm wheel 7 synchronously rotates, the worm wheel 7 drives a worm 6 to rotate, a threaded barrel 5 is drawn towards the middle, locks 4 on the two sides are drawn towards the middle at the moment, a rotating shaft is locked, the rotating shaft cannot rotate by utilizing friction force, after the work is finished, the external locking switch is pressed, the power supply of the locking device is disconnected, a motor 2 reverse circuit is switched on, the locks 4 on the two sides are reset, and the locks 4 reach a limit position, the motor 2 stops operating, the rolling door control switch is connected again at the moment, the control on the driving motor is recovered, the descending switch is pressed down, and the rolling door is closed.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. The utility model discloses each part that mentions is the common technique in prior art, and the technical personnel of this trade should understand, the utility model discloses do not receive the restriction of above-mentioned embodiment, the description only is the explanation in above-mentioned embodiment and the description the principle of the utility model, under the prerequisite that does not deviate from the spirit and the scope of the utility model, the utility model discloses still can have various changes and improvement, these changes and improvement all fall into the protection of claim the utility model is within the scope. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (3)

1. A locking device for a roller shutter door is characterized by comprising a locking box body, a motor, worm gears, driven gears, driving gears, chains, gear shafts and locking mechanisms, wherein the locking box body is installed on the inner wall above a roller shutter door rotating shaft, the motor is installed on the inner wall at the top end of the locking box body, the number of the driving gears is 2, the driven gears are respectively arranged on the left side and the right side below the motor, the driving gears are respectively connected with the driven gears through the chains, the driven gears are installed inside the locking box body through the gear shafts, the worm gears are installed on the gear shafts, the number of the worm gears is 2, the worm gears are located in front of the driven gears, the locking mechanisms are installed among the worm gears, and the locking mechanisms are installed in the center of the inner wall at the bottom end of the locking box body;

locking mechanism includes backup pad, tool to lock, screw thread bucket, worm, slider, spout, the spout has been seted up to the four corners department of backup pad, the terminal surface symmetry is provided with the tool to lock before the backup pad, the upper and lower both ends of tool to lock rear end face are provided with the slider respectively, the backup pad passes through slider and spout sliding connection, the outside of tool to lock is provided with the screw thread bucket, set up threaded hole on the outer terminal surface of screw thread bucket, the worm is installed to the outer end of screw thread bucket, the inboard one end of worm is provided with the screw thread, the threaded hole at the screw thread bucket is installed to the inboard one end of worm, the worm is two and is bilateral symmetry and distributes, the outside one end of worm is connected with the worm wheel meshing, the worm is fixed in on the lower terminal surface of box through the bearing frame.

2. The locking device for a rolling shutter door as claimed in claim 1, wherein the lock is connected to the screw barrel by welding.

3. The locking device for the rolling shutter door as claimed in claim 1, wherein the motor is mounted in the locking box body by bolts.

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