Electric roller shutter door with high protective property

Abstract

The utility model relates to the technical field of electric roller shutter doors, and discloses a high-protection electric roller shutter door which comprises a door frame, a driving box is installed on the upper portion of the door frame, one end of the driving box is in transmission connection with a roller shutter body, the lower end of the roller shutter body is connected with a bottom shell, guide grooves are formed in the two sides of the inner wall of the door frame, and sawtooth strips are connected into the guide grooves. According to the utility model, the bottom shell is arranged at the lower end of the roller shutter main body and is matched with each component structure in the bottom shell, so that when the roller shutter main body collides with an object or a person in the falling process, the second electromagnet moves upwards to be adsorbed with the first electromagnet, and then the connecting rod drives the top column on the fixed block to abut against the swing rod; under the action of a compression spring, a ball bearing on one side of the swing rod moves along an L-shaped groove, a movable rod drives a stop block to move, then an insertion block stretches out of the bottom shell to be connected with a tooth groove in a sawtooth strip in an inserted mode, the bottom shell is braked, the roller shutter body cannot continue to descend, and therefore the safety of objects or personnel is protected.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric rolling shutter doors, in particular to a highly protective electric rolling shutter door. Background Art

[0002] When a traditional electric rolling door is falling, if there are obstacles or people below, it will often continue to fall due to inertia, causing a collision, resulting in damage to objects or injuries to people. Therefore, a highly protective electric rolling door is designed to ensure that it can stop safely when encountering obstacles or people during the falling process. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a highly protective electric rolling door, which effectively solves the problems raised in the above background.

[0004] To achieve the above object, the utility model provides the following technical solutions: a highly protective electric rolling shutter door, comprising a door frame, a drive box is installed on the upper part of the door frame, one end of the drive box is connected to a rolling shutter body in a transmission manner, the lower end of the rolling shutter body is connected to a bottom shell, both sides of the inner wall of the door frame are provided with guide grooves, and the guide grooves are connected to sawtooth bars;

[0005] Partitions are connected on both sides of the bottom shell, a movable rod is connected through one end of the partition, a block is connected to one end of the movable rod, a movable plate is connected to the side of the movable rod away from the block, a plug-in block is connected to one end of the block, a compression spring is provided on one side of the block, the compression spring is sleeved on the outside of the movable rod, an L-shaped groove is opened through the surface of the movable plate, a pull rod is connected to one end of the movable plate, the pull rod extends through to the outside of the bottom shell, and a pull rod groove is opened on the outer wall of the bottom shell corresponding to the penetration of the pull rod.

[0006] Preferably, the inner wall of the bottom shell is rotatably connected to a rocker arm via a first pin shaft, and a ball bearing is connected to the side of the rocker arm close to the edge via a second pin shaft, the ball bearing is located in an L-shaped groove, and a lever is connected to one side of the rocker arm, the lever extends through and extends to the outside of the bottom shell, and a lever groove is opened on the outer wall of the bottom shell corresponding to the position where the lever penetrates.

[0007] Preferably, a first electromagnet is connected to the upper inner wall of the bottom shell, support rods are connected to both sides of the lower end of the first electromagnet, the lower end of the support rods is connected to the lower end of the bottom shell, a second electromagnet is movably sleeved outside the support rods, connecting rods are connected to both sides of the lower end of the second electromagnet, the connecting rods extend through and extend to the bottom of the bottom shell and are connected to a bottom plate, a flexible pad is connected to the lower end of the bottom plate, and contact switches are evenly installed on the lower end of the bottom shell.

[0008] Preferably, a tension spring is sleeved on the outside of the support rod, the upper end of the tension spring is connected to the second electromagnet, and the lower end of the tension spring is connected to the lower end of the bottom shell.

[0009] Preferably, a fixing block is connected to one side of the connecting rod, a top column is connected to the upper end of the fixing block, and the top column is in contact with the swing arm.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model arranges a bottom shell at the lower end of the roller shutter body and cooperates with the structures of various components inside the bottom shell. When the roller shutter body collides with an object or a person during the falling process, the second electromagnet moves upward and is attracted by the first electromagnet, and then the connecting rod drives the top column on the fixed block to resist the swing rod, so that the ball bearing on one side of the swing rod moves along the L-shaped groove. Under the action of the compression spring, the movable rod drives the stopper to move, and then the connecting block extends out of the bottom shell and is connected with the tooth groove on the sawtooth bar, so that the bottom shell is braked and the roller shutter body will not continue to descend, thereby protecting the safety of objects or people. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0013] In the attached picture:

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the bottom shell of the utility model;

[0016] Figure 3 For this utility model Figure 2 Schematic diagram of the enlarged structure of A;

[0017] In the figure: 1. door frame; 2. drive box; 3. roller shutter body; 4. bottom shell; 5. guide groove; 6. serrated bar; 7. partition; 8. movable rod; 9. block; 10. movable plate; 11. plug-in block; 12. compression spring; 13. L-shaped groove; 14. pull rod; 15. pull rod groove; 16. first pin shaft; 17. rocker arm; 18. second pin shaft; 19. ball bearing; 20. lever; 21. lever groove; 22. first electromagnet; 23. support rod; 24. second electromagnet; 25. connecting rod; 26. bottom plate; 27. flexible pad; 28. contact switch; 29. ​​tension spring; 30. fixing block; 31. top column. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0019] Embodiment 1, by Figure 1-Figure 3 The utility model comprises a door frame 1, a driving box 2 is installed on the upper part of the door frame 1, one end of the driving box 2 is drivingly connected to a roller shutter body 3, the lower end of the roller shutter body 3 is connected to a bottom shell 4, both sides of the inner wall of the door frame 1 are provided with guide grooves 5, and the guide grooves 5 are connected with sawtooth strips 6;

[0020] Both sides of the bottom shell 4 are connected with partitions 7, one end of the partition 7 is connected with a movable rod 8, one end of the movable rod 8 is connected with a stopper 9, the side of the movable rod 8 away from the stopper 9 is connected with a movable plate 10, one end of the stopper 9 is connected with a plug-in block 11, one side of the stopper 9 is provided with a compression spring 12, the compression spring 12 is sleeved on the outside of the movable rod 8, an L-shaped groove 13 is penetrated on the surface of the movable plate 10, one end of the movable plate 10 is connected with a pull rod 14, the pull rod 14 is extended to the outside of the bottom shell 4, and a pull rod groove 15 is provided on the outer wall of the bottom shell 4 corresponding to the penetration of the pull rod 14;

[0021] The inner wall of the bottom shell 4 is rotatably connected to a swing rod 17 through a first pin shaft 16. The side of the swing rod 17 close to the edge is connected to a ball bearing 19 through a second pin shaft 18. The ball bearing 19 is located in the L-shaped groove 13. One side of the swing rod 17 is connected to a lever 20. The lever 20 extends through and extends to the outside of the bottom shell 4. A lever groove 21 is opened on the outer wall of the bottom shell 4 corresponding to the penetration of the lever 20.

[0022] The upper wall of the bottom shell 4 is connected to a first electromagnet 22, and both sides of the lower end of the first electromagnet 22 are connected to support rods 23, and the lower end of the support rod 23 is connected to the lower end of the bottom shell 4. The second electromagnet 24 is movably sleeved on the outside of the support rod 23, and both sides of the lower end of the second electromagnet 24 are connected to connecting rods 25. The connecting rods 25 extend through and extend to the bottom of the bottom shell 4 and are connected to a bottom plate 26. The lower end of the bottom plate 26 is connected to a flexible pad 27, and a contact switch 28 is evenly installed at the lower end of the bottom shell 4;

[0023] A tension spring 29 is sleeved outside the support rod 23, the upper end of the tension spring 29 is connected to the second electromagnet 24, and the lower end of the tension spring 29 is connected to the lower end of the bottom shell 4;

[0024] A fixing block 30 is connected to one side of the connecting rod 25 . A top column 31 is connected to the upper end of the fixing block 30 . The top column 31 contacts the swing rod 17 .

[0025] Working principle: During use, when there is an object or a person inside the door frame 1, when the driving box 2 drives the rolling shutter body 3 to fall, the bottom plate 26 at the bottom contacts the object or the person, and the bottom plate 26 is forced to move upward, so that the bottom plate 26 contacts the contact switch 28 at the lower end of the bottom shell 4, so that the contact switch 28 controls the first electromagnet 22 and the second electromagnet 24 to be energized to generate magnetic attraction, thereby causing the first electromagnet 22 and the second electromagnet 24 to be attracted. At this time, the second electromagnet 24 moves upward, the tension spring 29 is stretched and expanded, and the connecting rod 25 is connected to the connecting rod 25. The movable fixed block 30 moves upward, so that the top column 31 presses upward against the swing rod 17, and the swing rod 17 rotates around the first pin 16, so as to drive the ball bearing 19 to move along the L-shaped groove 13. When the ball bearing 19 moves to the horizontal direction of the L-shaped groove 13, the movable rod 8 moves under the elastic force of the compression spring 12, so that the stopper 9 drives the plug-in block 11 to extend out of the bottom shell 4, so that the plug-in block 11 is plugged into the tooth groove on the sawtooth bar 6, so that the bottom shell 4 is braked, and the roller shutter body 3 will not continue to descend, thereby protecting the safety of objects or personnel;

[0026] When releasing, firstly, the first electromagnet 22 and the second electromagnet 24 are powered off. At this time, the first electromagnet 22 and the second electromagnet 24 have no adsorption force. Under the pulling force of the tension spring 29, the second electromagnet 24 drives the connecting rod 25 to move downward, and then the fixed block 30 drives the top column 31 to move downward, releasing the resistance with the rocker rod 17. Then, by pulling the pull rod 14 and the lever 20, the rocker rod 17 drives the ball bearing 19 to move along the L-shaped groove 13 to its uppermost position, so that the movable plate 10 drives the movable rod 8 to retract into the bottom shell 4, and then drives the plug-in block 11 to disengage from the tooth groove on the serrated bar 6. At this time, the roller shutter body 3 is released.

Claims

1. A highly protective electric rolling door, comprising a door frame (1), characterized in that: A driving box (2) is installed on the upper part of the door frame (1); one end of the driving box (2) is drivingly connected to a roller shutter body (3); the lower end of the roller shutter body (3) is connected to a bottom shell (4); guide grooves (5) are provided on both sides of the inner wall of the door frame (1); and a sawtooth bar (6) is connected inside the guide groove (5); Both sides of the bottom shell (4) are connected with partitions (7), one end of the partition is connected with a movable rod (8), one end of the movable rod (8) is connected with a stopper (9), the side of the movable rod (8) away from the stopper (9) is connected with a movable plate (10), one end of the stopper (9) is connected with a plug-in block (11), one side of the stopper (9) is provided with a compression spring (12), the compression spring (12) is sleeved on the outside of the movable rod (8), an L-shaped groove (13) is penetrated through the surface of the movable plate (10), one end of the movable plate (10) is connected with a pull rod (14), the pull rod (14) penetrates and extends to the outside of the bottom shell (4), and a pull rod groove (15) is provided on the outer wall of the bottom shell (4) corresponding to the penetration of the pull rod (14).

2. The highly protective electric rolling door according to claim 1, characterized in that: The inner wall of the bottom shell (4) is rotatably connected to a swing rod (17) via a first pin shaft (16); a side of the swing rod (17) close to the edge is connected to a ball bearing (19) via a second pin shaft (18); the ball bearing (19) is located in the L-shaped groove (13); one side of the swing rod (17) is connected to a lever (20); the lever (20) extends through and extends to the outside of the bottom shell (4); and a lever groove (21) is provided on the outer wall of the bottom shell (4) corresponding to the position where the lever (20) penetrates.

3. The highly protective electric rolling door according to claim 1, characterized in that: The upper wall of the bottom shell (4) is connected to a first electromagnet (22), both sides of the lower end of the first electromagnet (22) are connected to support rods (23), the lower end of the support rod (23) is connected to the lower end of the bottom shell (4), a second electromagnet (24) is movably sleeved outside the support rod (23), both sides of the lower end of the second electromagnet (24) are connected to connecting rods (25), the connecting rods (25) extend through and extend to the bottom of the bottom shell (4) and are connected to a bottom plate (26), the lower end of the bottom plate (26) is connected to a flexible pad (27), and a contact switch (28) is evenly installed at the lower end of the bottom shell (4).

4. The highly protective electric rolling door according to claim 3, characterized in that: The support rod (23) is sleeved with a tension spring (29) on the outside, the upper end of the tension spring (29) is connected to the second electromagnet (24), and the lower end of the tension spring (29) is connected to the lower end inside the bottom shell (4).

5. The highly protective electric rolling door according to claim 3, characterized in that: One side of the connecting rod (25) is connected to a fixing block (30), the upper end of the fixing block (30) is connected to a top column (31), and the top column (31) is in contact with the swing rod (17).

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