Locking structure for roller shutter door
By designing efficient clamping mechanism and mechanical drive system in the roller shutter door locking device, the problem of reduced clamping degree caused by lock wear is solved, higher clamping force and lower risk are achieved, and the use of the device is extended life.
Patent Information
- Application Number
- CN202323407470.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-13
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2033-12-13
AI Technical Summary
After the existing roller shutter door locking device is used for many times for a long time, the contact surface of the lock and the shaft is seriously worn, resulting in a reduction in the clamping degree and increasing the risk of the roller shutter door falling.
A locking structure including a locking box, a support plate, a locking plate, a clamping mechanism and a driving motor are designed. The clamping mechanism improves the locking plate rotation shaft through the cooperation of friction bumps, arcuate grooves and springs. The degree of clamping is ensured by mechanical design of the driving gear, driven gear and chain to ensure efficient clamping of the locking plate.
It effectively improves the clamping degree of the locking plate to the rotary shaft, reduces the risk of the roller shutter door falling, and reduces the wear of the contact surface between the locking plate and the rotary shaft, and extends the service life of the device.
Smart Images
Figure CN222228435U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rolling shutter doors, in particular to a locking structure for rolling shutter doors. Background Art
[0002] Rolling shutter doors are made of multi-jointed door panels connected in series. In a fixed slide, the door rotates up and down with the scroll above the door as the center. Rolling shutter doors are suitable for public places or residences such as commercial storefronts, garages, shopping malls, hospitals, factories and mines.
[0003] Authorization announcement No. CN214424371 U discloses a locking device for a rolling door. The locking device for the rolling door presses the locking switch. When the staff accidentally touches the descending switch, the control switch loses control of the driving motor due to power failure of the driving motor, and the clamp clamps the rotating shaft, so that the rotating shaft cannot rotate even when the motor brake pad of the electric rolling door is severely worn or loose. The rolling door cannot fall, reducing the occurrence of accidents and reducing the danger. However, after the lock in the locking device clamps the rotating shaft for a long time and multiple times, the contact surface between the lock and the rotating shaft is severely worn, thereby reducing the clamping degree of the lock on the rotating shaft, which increases the danger of the rolling door falling to a certain extent.
[0004] Therefore, it is necessary to provide a new rolling door locking structure to solve the above-mentioned technical problems. Utility Model Content
[0005] In order to solve the above technical problems, the utility model provides a locking structure for a rolling door with a lock having a high degree of clamping of the rotating shaft.
[0006] The utility model provides a locking structure for a rolling door, comprising a locking box body, wherein a support plate is connected to the interior of the locking box body, two locking plates symmetrically distributed on the outer side of the support plate are arranged, and a clamping mechanism is arranged on one side of the locking plate.
[0007] The lock body has two cams, one end of which is provided with a spring, and the other end is provided with a hook at the hook which is on the top of the lock body, and the other end is provided with a hook at the bottom of the lock body, and a hook is formed on the hook at the bottom of the lock body, and a hook is formed on the hook at the bottom of the lock body.
[0008] In order to achieve the effect of normal clamping of the rotating shaft by the two locking plates, the utility model provides a locking structure for a rolling door. Preferably, a driving motor is arranged inside the locking box, a driving gear is arranged inside the locking box and located on one side of the driving motor, two driven gears are arranged inside the locking box, the driving gear and the driven gear are connected by a chain, a worm wheel is arranged on the outer surface of the driven gear, a worm is connected to the outer surface of the worm wheel, a threaded barrel is arranged on the outer surface of the other side of the locking plate, and the other end of the worm is connected to the threaded barrel.
[0009] In order to facilitate daily replacement and maintenance of the locking plate, the utility model provides a locking structure for a rolling door. Preferably, a first fixing ring is connected to the outer wall of one side of the locking plate, a circular plug is connected to the outer wall of one side of the first fixing ring, a second fixing ring is connected to the outer surface of the threaded barrel, the second fixing ring is plugged into and matched with the outer wall of the circular plug through an opening, a threaded fastening cap is threadedly sleeved on the outer surface of the second fixing ring, and the threaded fastening cap extends out of the inner wall of the second fixing ring and is threadedly connected to the outer wall of the first fixing ring.
[0010] Compared with the prior art, the beneficial effects of the utility model are:
[0011] The rolling door uses a locking structure. When the locking plate clamps the rotating shaft, the clamping plate on one side of the locking plate contacts the rotating shaft, so that the clamping plate is pressed by the rotating shaft to move into the arc groove, thereby causing the connecting rod in the arc groove to move upward, and the other connecting rod to move downward, so that the connecting rod moves and drives the slider to slide on the surface of the arc sliding rod. When the slider slides, it squeezes the spring on the surface of the arc sliding rod, so that the spring changes from a relaxed state to a squeezed state. Through the cooperation of the spring and the clamping plate, the locking plate is more tightly clamped to the rotating shaft, reducing the rolling door. The danger of the door falling is reduced, and the friction bulge on one side of the clamping plate increases the friction between the clamping plate and the rotating shaft, further improving the clamping degree of the clamping plate on the rotating shaft. Since the contact area of the locking plate on the rotating shaft is small, the wear degree of the contact surface between the locking plate and the rotating shaft is reduced to a certain extent, which solves the problem that after the lock in the existing rolling door locking device clamps the rotating shaft for a long time and multiple times, the contact surface between the lock and the rotating shaft wears more seriously, thereby reducing the clamping degree of the lock on the rotating shaft, which increases the danger of the rolling door falling to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 A structural schematic diagram of a preferred embodiment of a locking structure for a rolling door provided by the utility model;
[0013] Figure 2 This is a schematic diagram of the internal structure of the locking plate of the utility model;
[0014] Figure 3 This is a schematic diagram of the connection between the locking plate and the threaded barrel of the utility model;
[0015] Figure 4 This is a three-dimensional diagram of the locking plate structure of the utility model.
[0016] Among them: 1. locking box; 101. driving motor; 102. driving gear; 103. driven gear; 104. chain; 105. worm wheel; 106. worm; 2. support plate; 3. locking plate; 301. clamping plate; 302. friction convex point; 303. arc groove; 304. fixing block; 305. first movable shaft; 306. connecting rod; 307. vertical plate; 308. arc sliding rod; 309. sliding block; 310. second movable shaft; 311. spring; 312. threaded barrel; 313. first fixing ring; 314. round plug; 315. second fixing ring; 316. socket; 317. threaded fastening cap. DETAILED DESCRIPTION
[0017] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.
[0018] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4,in Figure 1 A structural schematic diagram of a preferred embodiment of a locking structure for a rolling door provided by the utility model; Figure 2 This is a schematic diagram of the internal structure of the locking plate of the utility model; Figure 3 This is a schematic diagram of the connection between the locking plate and the threaded barrel of the utility model; Figure 4 A locking structure for a rolling door includes a locking box 1, a support plate 2 is connected to the locking box 1, two locking plates 3 are symmetrically arranged on the outside of the support plate 2, and a clamping mechanism is arranged on one side of the locking plate 3.
[0019] Reference Figure 1 , Figure 2 and Figure 4 The clamping mechanism includes a clamping plate 301, and a plurality of groups of symmetrically distributed friction protrusions 302 are connected to the outer wall of one side of the clamping plate 301. An arc groove 303 is opened on one side of the locking plate 3, and a fixed block 304 is connected to the inner wall of one side of the arc groove 303. A first movable shaft 305 is arranged inside the fixed block 304, and two connecting rods 306 are arranged on the outer surface of the first movable shaft 305 extending out of the fixed block 304. Two vertical plates 307 symmetrically distributed up and down are connected to the outer wall of one side of the clamping plate 301. The vertical plate 30 An arc-shaped slide bar 308 is connected to the outer wall of one side of the other vertical plate 307. Two sliders 309 are connected to the outer surface of the arc-shaped slide bar 308 on one side of the clamping plate 301. A second movable shaft 310 is arranged on the outer wall of one side of the slider 309. The outer wall of the second movable shaft 310 is connected to the inside of the connecting rod 306. A spring 311 is sleeved on the outer surface of the arc-shaped slide bar 308 and located on one side of the slider 309. One end of the spring 311 is connected to the outer wall of one side of the vertical plate 307.
[0020] When the locking plate 3 is clamped on the rotating shaft, the clamping plate 301 on one side of the locking plate 301 contacts the rotating shaft, so that the clamping plate 301 is squeezed by the squeezing force of the rotating shaft to move into the arc groove 303, thereby causing the connecting rod 306 in the arc groove 303 to move upward, and the other connecting rod 306 to move downward, so that the connecting rod 306 moves while driving the slider 309 to slide on the surface of the arc slide bar 308. While the slider 309 slides, it squeezes the spring 311 on the surface of the arc slide bar 308, so that the spring 311 is changed from a relaxed state to a squeezed state. Through the cooperation of the spring 311 and the clamping plate 301, the locking plate 3 is clamped more tightly to the rotating shaft, reducing the risk of the rolling door falling. In addition, through the friction protrusion 302 on one side of the clamping plate 301, the friction between the clamping plate 301 and the rotating shaft is increased, further improving the clamping degree of the clamping plate 301 on the rotating shaft.
[0021] Reference Figure 1A driving motor 101 is arranged inside the locking box 1, a driving gear 102 is arranged inside the locking box 1 and located on one side of the driving motor 101, two driven gears 103 are arranged inside the locking box 1, the driving gear 102 and the driven gear 103 are connected by a chain 104, a worm wheel 105 is arranged on the outer surface of the driven gear 103, a worm 106 is connected to the outer surface of the worm wheel 105, a threaded barrel 312 is arranged on the outer surface of the other side of the locking plate 3, and the worm 106 The other end is connected to the threaded barrel 312, and the driving motor 101 is externally connected to a power source. The driving motor 101 drives the driving gear 102 to rotate, and the driving gear 102 drives the driven gear 103 to rotate through the chain 104. The driven gear 103 is coaxial with the worm gear 105, so that the worm gear 105 rotates synchronously with the driven gear 103, and the worm 106 is driven to rotate through the worm gear 105. At this time, the locking plate 3 moves toward the middle and locks the rotating shaft.
[0022] Reference Figure 1 and Figure 3 When the locking plate 310 is in the state of being moved forward, the cam 314 is tightened and the locking plate 310 is tightened, so that the locking plate 310 can be tightened and the locking plate 310 can be tightened.
[0023] When the locking plate 301 is in the unlocking state, the locking plate 301 is in the unlocking state, and the locking plate 301 is in the unlocking state, so that ...
[0024] The standard parts used in the utility model can all be purchased from the market, special-shaped parts can be customized according to the description in the specification and the drawings, the specific connection methods of each part all adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art, the machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here, and the components known to technical personnel in this field, their structures and principles can be known to these technical personnel through technical manuals or through conventional experimental methods.
[0025] 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 locking structure for a rolling door, characterized in that: It comprises a locking box (1), wherein the locking box (1) is internally connected to a support plate (2), two locking plates (3) are arranged on the outside of the support plate (2) and are symmetrically distributed on the left and right, and a clamping mechanism is arranged on one side of the locking plate (3).
2. A locking structure for a rolling door according to claim 1, characterized in that: The clamping mechanism comprises a clamping plate (301), the outer wall of one side of the clamping plate (301) is connected to a plurality of groups of symmetrically distributed friction protrusions (302), an arc-shaped groove (303) is provided on one side of the locking plate (3), the inner wall of one side of the arc-shaped groove (303) is connected to a fixing block (304), a first movable shaft (305) is arranged inside the fixing block (304), the first movable shaft (305) extends out of the outer surface of the fixing block (304) and is provided with two connecting rods (306), the outer wall of one side of the clamping plate (301) is connected to two vertical plates (307) which are symmetrically distributed up and down, and the vertical plates (30 7) An arc-shaped slide bar (308) is connected to an outer wall on one side, and the other end of the arc-shaped slide bar (308) is connected to an outer wall on one side of another vertical plate (307); one side of the clamping plate (301) is connected to two sliders (309) located on the outer surface of the arc-shaped slide bar (308); a second movable shaft (310) is provided on an outer wall on one side of the slider (309); the outer wall of the second movable shaft (310) is connected to the inside of the connecting rod (306); a spring (311) is sleeved on the outer surface of the arc-shaped slide bar (308) and located on one side of the slider (309); one end of the spring (311) is connected to an outer wall on one side of the vertical plate (307).
3. The locking structure for a rolling door according to claim 1, characterized in that: A driving motor (101) is arranged inside the locking case (1), a driving gear (102) is arranged inside the locking case (1) and located on one side of the driving motor (101), two driven gears (103) are arranged inside the locking case (1), the driving gear (102) and the driven gear (103) are connected via a chain (104), a worm wheel (105) is arranged on the outer surface of the driven gear (103), a worm (106) is connected to the outer surface of the worm wheel (105), a threaded barrel (312) is arranged on the outer surface of the other side of the locking plate (3), and the other end of the worm (106) is connected to the threaded barrel (312).
4. The locking structure for a rolling door according to claim 3, characterized in that: A first fixing ring (313) is connected to the outer wall of one side of the locking plate (3), a circular insert (314) is connected to the outer wall of one side of the first fixing ring (313), a second fixing ring (315) is connected to the outer surface of the threaded barrel (312), the second fixing ring (315) is plugged into and matched with the outer wall of the circular insert (314) via an inserted hole (316), a threaded fastening cap (317) is threadedly sleeved on the outer surface of the second fixing ring (315), and the threaded fastening cap (317) extends out of the inner wall of the second fixing ring (315) and is threadedly connected to the outer wall of the first fixing ring (313).