Locking door strip of roller shutter door

Abstract

The utility model discloses a locking door strip of a roller shutter door, and relates to the technical field of roller shutter doors. A roller shutter door locking door strip comprises a roller shutter door piece, a roller shutter door strip body and a mounting plate, a plurality of placing frames are arranged on the front face of a sliding plate side by side, balls are movably connected to the placing frames in a sleeving mode, a clamping groove is formed in the front face of the roller shutter door piece, and a plurality of limiting grooves are distributed in the clamping groove side by side; clamping pieces are fixedly connected to the rear ends of the roller shutter door pieces, clamping grooves are formed in the bottoms of the clamping pieces and the positions, close to the front ends, of the bottoms of the clamping pieces, door strip positioning pieces are fixedly installed on the front faces of the roller shutter door strips, and a plurality of second springs are distributed side by side at the positions, close to the top and the bottom, of the rear ends of the installation plates; and bases are fixedly mounted at the positions, close to the center, of the left side and the right side of the rear end of the mounting plate correspondingly, connecting rods are arranged at the adjacent ends of the two bases, and a first clamping semicircular ring and a second clamping semicircular ring are arranged on the connecting rods in a crossed mode.

Description

Technical Field

[0001] The utility model relates to the technical field of rolling shutter doors, in particular to a locking door strip for rolling shutter doors. Background Art

[0002] Rolling shutters (rolling doors) are made of multi-jointed door panels connected in series, which rotate up and down in a fixed slideway around the scroll above the door. Rolling shutters are commonly used in shops.

[0003] Chinese utility model patent CN209653925U discloses a rolling door locking strip and a rolling door; the rolling door locking strip includes a strip connector, a strip locking member and a magnetic member; the strip connector and the strip locking member can be buckled together, and the strip connector and the strip locking member can be arranged to form an internal hollow frame structure, so that the rolling door locking strip has good strength performance and the rolling door locking strip is more durable; a magnetic member is installed on one side of the rolling door locking strip, and when the rolling door is closed, the magnetic member on the rolling door locking strip can be attracted with the magnetic member on another rolling door locking strip or door frame arranged oppositely, and the door lock on the rolling door locking strip can be aligned with the shrinkage hole on another rolling door or door frame arranged oppositely, so that the rolling door can be locked easily and the rolling door has better sealing performance.

[0004] However, the above-mentioned rolling shutter door is closed by magnetic attraction, but the magnetic attraction will absorb a lot of rust in the dust during use, resulting in a significant reduction in the magnetic attraction effect, resulting in accidental injury to the person closing the door when closing the rolling shutter door. Utility Model Content

[0005] The utility model provides a rolling door locking strip to solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rolling door locking strip, comprising a rolling door piece, a rolling door strip and a mounting plate, a rolling door hole is opened on the left side of the rolling door piece, a support frame is fixedly installed inside the rolling door hole, a placement groove is opened at the top of the rolling door piece near the front end, a maintenance door is arranged on the placement groove, sliding rods are fixedly installed near the four corners of the rear end wall of the placement groove, a plurality of sliding plates are movably sleeved on the outer surfaces of the sliding rods, a plurality of first springs are arranged side by side at the rear end of the sliding plate, a plurality of placement frames are arranged side by side on the front side of the sliding plate, and a plurality of placement frames are movably sleeved on the outer surfaces of the plurality of sliding rods, a plurality of first springs are arranged side by side at the rear end of the sliding plate, a plurality of placement frames are arranged side by side on the front side of the sliding plate, and a plurality of placement frames are movably sleeved on the outer surfaces of the plurality of sliding bars. A ball bearing is connected to the movable sleeve, a card slot is provided on the front side of the rolling door piece, and a plurality of limit slots are distributed side by side inside the card slot, a card connector is fixedly connected to the rear end of the rolling door piece, a clamping groove is provided at the bottom of the card connector and at a position near the front end of the bottom, a door strip positioning piece is fixedly installed on the front side of the rolling door strip, a plurality of second springs are distributed side by side at the rear end near the top and the bottom of the mounting plate, a base is fixedly installed at the left and right sides of the rear end of the mounting plate near the center, a connecting rod is provided at one adjacent end of the two bases, and a first clamping semicircular ring and a second clamping semicircular ring are cross-arranged on the connecting rod.

[0007] Furthermore, the front ends of the plurality of slide rods are respectively fixedly connected to the front end wall of the placement slot near the four corners.

[0008] Furthermore, the front ends of the multiple placement racks respectively penetrate the internal front end walls of the placement grooves and extend to the interiors of the multiple limit grooves. The connection between the placement racks and the placement grooves is a movable sleeve, and the multiple ball bearings are respectively movably sleeved with the internal limit sleeves of the multiple placement grooves.

[0009] Furthermore, the rear ends of the plurality of first springs are respectively fixedly connected to the inner rear end wall of the placement groove.

[0010] Furthermore, a second clamping piece is provided at the rear end of the rolling door strip, and the second clamping piece on the rolling door strip has the same structure as the clamping piece at the rear end of the rolling door sheet, and the left side of the rolling door strip has the same structure as the left side of the rolling door sheet.

[0011] Furthermore, the front faces of the first clamping semicircular ring and the second clamping semicircular ring are respectively fixedly connected to one end of the adjacent second spring away from the mounting plate.

[0012] Furthermore, a second clamping piece at the rear end of the rolling shutter door strip is movably sleeved inside the clamping slot.

[0013] Furthermore, the front side of the mounting plate is fixedly connected to the ground.

[0014] Compared with the prior art, the utility model provides a rolling door locking strip, which has the following beneficial effects:

[0015] 1. The rolling door locking strip can strengthen the connection between the second clip at the rear end of the rolling door strip and the slot by arranging a ball and a placement frame, and can convert sliding friction into rolling friction, thereby significantly reducing friction resistance, thereby improving the installation efficiency between the second clip at the rear end of the rolling door strip and the slot, thereby improving work efficiency.

[0016] 2. The rolling door locking strip can quickly lock the rolling door when it is closed by providing a second spring, a first clamping semicircular ring, a second clamping semicircular ring, a connecting rod, a first side plate and a second side plate, thereby enhancing the stability of the rolling door when closing the door and reducing the possibility of the rolling door rebounding when closing and accidentally injuring the person closing the door. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a structural diagram of the connection of two rolling shutter door panels of the utility model;

[0019] Figure 3 This is the internal structure diagram of the placement slot of the utility model;

[0020] Figure 4 This is a connection diagram of the first clamping semicircular ring, the second clamping semicircular ring and the connecting rod of the utility model.

[0021] In the figure: 1. rolling shutter door piece; 2. maintenance door; 3. slot; 4. limit slot; 5. slide plate; 6. ball bearing; 7. support frame; 8. rolling shutter door hole; 9. snap-in piece; 10. clamping slot; 11. slide bar; 12. placement frame; 13. placement slot; 14. first spring; 15. rolling shutter door strip; 16. door strip positioning piece; 17. mounting plate; 18. second spring; 19. base; 20. first clamping semicircular ring; 21. first side plate; 22. second clamping semicircular ring; 23. second side plate; 24. connecting rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4The utility model discloses a rolling door locking strip, comprising a rolling door piece 1, a rolling door strip 15 and a mounting plate 17. A rolling door hole 8 is provided on the left side of the rolling door piece 1, a supporting frame 7 is fixedly installed inside the rolling door hole 8, a placement groove 13 is provided on the top of the rolling door piece 1 near the front end, a maintenance door 2 is provided on the placement groove 13, a sliding bar 11 is fixedly installed near the four corners of the rear end wall of the placement groove 13, a plurality of sliding bars 11 are movably sleeved on the outer surfaces of the plurality of sliding bars 11, a plurality of first springs 14 are arranged side by side at the rear end of the sliding plate 5, a plurality of placement frames 12 are arranged side by side on the front side of the sliding plate 5, and a plurality of placement frames 12 are movably sleeved on the plurality of ball bearings 6, A card slot 3 is provided on the front of the rolling door piece 1, and a plurality of limit slots 4 are distributed side by side inside the card slot 3. A card connector 9 is fixedly connected to the rear end of the rolling door piece 1, and a clamping groove 10 is provided at the bottom of the card connector 9 and at a position near the front end of the bottom. A door strip positioning piece 16 is fixedly installed on the front of the rolling door strip 15, and a plurality of second springs 18 are distributed side by side at the rear end of the mounting plate 17 near the top and the bottom. Bases 19 are fixedly installed at positions near the center on both sides of the rear end of the mounting plate 17, and a connecting rod 24 is provided at the adjacent ends of the two bases 19, and a first clamping semicircular ring 20 and a second clamping semicircular ring 22 are cross-arranged on the connecting rod 24.

[0024] Specifically, the front ends of the plurality of slide bars 11 are respectively fixedly connected to the front end wall of the placement slot 13 near the four corners.

[0025] Specifically, the front ends of the multiple placement racks 12 respectively penetrate the internal front end walls of the placement grooves 13 and extend to the interior of the multiple limit grooves 4. The connection between the placement racks 12 and the placement grooves 13 is a movable sleeve, and the multiple balls 6 are respectively movably sleeved with the internal limit sleeves of the multiple placement grooves 13.

[0026] In this embodiment, it is ensured that the ball 6 can play a role in assisting the internal movement of the rear end second clip 9 of the rolling door strip 15 and the slot 3, and it is also prevented that the ball 6 pushes the rear end second clip 9 of the rolling door strip 15 into the slot 3, thereby avoiding affecting the connection between the rear end second clip 9 of the rolling door strip 15 and the slot 3.

[0027] Specifically, the rear ends of the plurality of first springs 14 are fixedly connected to the inner rear end wall of the placement slot 13 .

[0028] In this embodiment, the subsequent spring pushes the slide plate 5 to move along the slide rod 11 for convenience.

[0029] Specifically, a second clip 9 is provided at the rear end of the rolling door strip 15, and the second clip 9 on the rolling door strip 15 has the same structure as the clip 9 at the rear end of the rolling door piece 1, and the left side of the rolling door strip 15 has the same structure as the left side of the rolling door piece 1.

[0030] Specifically, the front sides of the first clamping semicircular ring 20 and the second clamping semicircular ring 22 are respectively fixedly connected to one end of the adjacent second spring 18 away from the mounting plate 17 .

[0031] In this embodiment, the second spring 18 pushes the first clamping semicircular ring 20 and the second clamping semicircular ring 22 through its own elastic force to clamp the door strip positioning member 16 in a circle with the connecting rod 24, thereby limiting the rolling door strip 15.

[0032] Specifically, the second clamping piece 9 at the rear end of the rolling shutter door strip 15 is movably sleeved inside the clamping slot 3 .

[0033] Specifically, the front side of the mounting plate 17 is fixedly connected to the ground.

[0034] In this embodiment, the rolling shutter door strip 15 is subsequently pulled downward so that the outer surface of the door strip positioning piece 16 is clamped in the semicircle formed by the first clamping semicircular ring 20 and the second clamping semicircular ring 22, and the first side plate 21 and the second side plate 23 are pushed by the second spring 18 to clamp the door strip positioning piece 16, so that the semicircle formed by the first clamping semicircular ring 20 and the second clamping semicircular ring 22 clamps the door strip positioning piece 16, thereby improving the safety and stability of the rolling shutter door when closing.

[0035] When in use, the rear end second clip 9 of the rolling shutter door strip 15 is movably sleeved with the inside of the slot 3, and the rear end second clip 9 of the rolling shutter door strip 15 can be accelerated to slide inside the slot 3 after passing through the ball 6. After being squeezed by the second clip 9 inside the slot 3, the ball 6 pushes the placement frame 12 and the slide plate 5 along the slide rod 11 to press against the first spring 14, thereby avoiding the situation where the ball 6 and the second clip 9 collide with each other head-on; when the rolling shutter door is closed, the rolling shutter door strip 15 is pulled downward so that the outer surface of the door strip positioning piece 16 is clamped in the semicircle formed by the first clamping semicircular ring 20 and the second clamping semicircular ring 22, and the first side plate 21 and the second side plate 23 are pushed by the second spring 18 to clamp the door strip positioning piece 16. , so that the semicircle formed by the first clamping semicircular ring 20 and the second clamping semicircular ring 22 clamps the door strip positioning piece 16, thereby improving the safety and stability of the rolling door when closing; when the rolling door is opened, the rolling door strip 15 is pulled up, driving the door strip positioning piece 16 to move up, the second spring 18 is subjected to the extrusion force, the first clamping semicircular ring 20 and the second clamping semicircular ring 22 open in the direction of the second spring 18, the second spring 18 is compressed, and when the rolling door strip 15 breaks away from the semicircle formed by the first clamping semicircular ring 20 and the second clamping semicircular ring 22, the second spring 18 pushes the second side plate 23 and the first side plate 21 to restore the first clamping semicircular ring 20 and the second clamping semicircular ring 22 to their original state, which is convenient for next use.

[0036] To summarize, the rolling door locking strip can transform sliding friction into rolling friction when strengthening the connection between the second clip 9 at the rear end of the rolling door strip 15 and the slot 3 by setting the ball bearing 6 and the placement frame 12, thereby significantly reducing the friction resistance, thereby improving the installation efficiency between the second clip 9 at the rear end of the rolling door strip 15 and the slot 3, thereby improving the work efficiency; by setting the second spring 18, the first clamping semicircular ring 20, the second clamping semicircular ring 22, the connecting rod 24, the first side plate 21 and the second side plate 23, the rolling door can be quickly locked when closed, thereby strengthening the stability of the rolling door when closing the door, and reducing the possibility of the rolling door rebounding when closing the door and accidentally injuring the person closing the door.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rolling door locking strip, comprising a rolling door sheet (1), a rolling door strip (15) and a mounting plate (17), characterized in that: A rolling door hole (8) is provided on the left side of the rolling door piece (1), a support frame (7) is fixedly installed inside the rolling door hole (8), a placement groove (13) is provided on the top of the rolling door piece (1) near the front end, a maintenance door (2) is provided on the placement groove (13), sliding rods (11) are fixedly installed on the rear end wall of the placement groove (13) near four corners, a plurality of sliding plates (5) are movably sleeved on the outer surfaces of the plurality of sliding rods (11), a plurality of first springs (14) are arranged side by side at the rear end of the sliding plates (5), a plurality of placement frames (12) are arranged side by side on the front side of the sliding plates (5), a plurality of the placement frames (12) are movably sleeved on the plurality of balls (6), and a card slot (3) is provided on the front side of the rolling door piece (1). A plurality of limit grooves (4) are arranged side by side inside the clamping groove (3); a clamping piece (9) is fixedly connected to the rear end of the rolling shutter door piece (1); a clamping groove (10) is provided at the bottom of the clamping piece (9) and at a position close to the front end of the bottom; a door strip positioning piece (16) is fixedly installed on the front of the rolling shutter door strip (15); a plurality of second springs (18) are arranged side by side at positions close to the top and the bottom of the rear end of the mounting plate (17); a base (19) is fixedly installed at positions close to the center on both left and right sides of the rear end of the mounting plate (17); a connecting rod (24) is arranged at adjacent ends of the two bases (19); and a first clamping semicircular ring (20) and a second clamping semicircular ring (22) are cross-arranged on the connecting rod (24).

2. The rolling door locking strip according to claim 1, characterized in that: The front ends of the plurality of sliding rods (11) are respectively fixedly connected to the front end wall of the placement groove (13) near the four corners.

3. The rolling door locking strip according to claim 1, characterized in that: The front ends of the plurality of placement racks (12) respectively penetrate the inner front end wall of the placement groove (13) and extend to the inside of the plurality of limit grooves (4). The connection between the placement rack (12) and the placement groove (13) is a movable sleeve connection. The plurality of balls (6) are respectively movable sleeve connection with the inner limit of the plurality of placement grooves (13).

4. The rolling door locking strip according to claim 1, characterized in that: The rear ends of the plurality of first springs (14) are respectively fixedly connected to the inner rear end wall of the placement groove (13).

5. The rolling door locking strip according to claim 1, characterized in that: A second clamping piece (9) is provided at the rear end of the rolling door strip (15); the second clamping piece (9) on the rolling door strip (15) has the same structure as the clamping piece (9) at the rear end of the rolling door sheet (1); and the left side of the rolling door strip (15) has the same structure as the left side of the rolling door sheet (1).

6. The rolling door locking strip according to claim 1, characterized in that: The front surfaces of the first clamping semicircular ring (20) and the second clamping semicircular ring (22) are respectively fixedly connected to one end of an adjacent second spring (18) away from the mounting plate (17).

7. The rolling door locking strip according to claim 1, characterized in that: The second clamping piece (9) at the rear end of the rolling shutter door strip (15) is movably sleeved inside the clamping slot (3).

8. The rolling door locking strip according to claim 1, characterized in that: The front side of the mounting plate (17) is fixedly connected to the ground.

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