A hand-automatic dual-drive roller shutter door and an opening method thereof

Abstract

The application discloses a hand-automatic integrated double-drive roller shutter door and an opening method thereof, and relates to the technical field of roller shutter doors. The roller shutter door comprises a roller shutter door body, a door frame and a hand-automatic integrated lock arranged at the bottom of the door body. The hand-automatic integrated lock is integrated with a lock tongue, a hand unlocking mechanism and an automatic unlocking mechanism, and is independently unlocked through the cooperation of an unlocking pull block, an unlocking guide column and a slope structure. A compact transmission unit is formed by a driving motor, an electromagnetic clutch, a driving gear and a driving flexible shaft, and a space optimization layout is realized by cooperating with a flexible shaft storage tube, a guide wheel and a winding roller. The application can realize the double modes of electric opening in the vehicle and manual opening by a key outside the vehicle, does not need to be operated by getting off the vehicle, improves the emergency response efficiency, adopts flexible shaft transmission, is compact in size, greatly reduces the occupation of the space in the vehicle, can consider the pulling force and the pushing force at the same time, the hand automatic driving does not interfere with each other, is high in reliability, and is suitable for special equipment scenes such as fire fighting vehicles.

Description

Technical Field

[0001] This application relates to the field of roller shutter technology, and in particular to a manual / automatic dual-drive roller shutter door and its opening method. Background Technology

[0002] In the roller shutter structure of special equipment such as fire trucks and emergency rescue vehicles, due to the limitations of the equipment layout inside the vehicle and the usage scenario, the roller shutter door can usually only be manually opened from the outside of the vehicle and cannot be controlled from inside the vehicle. In actual emergency operations, operators must first complete a series of procedures such as parking, getting out of the vehicle, and manually opening and closing the roller shutter door. The operation steps are cumbersome and time-consuming, which seriously reduces the emergency response speed and operational efficiency, making it difficult to meet the usage requirements of rapid deployment and efficient handling of special equipment.

[0003] Currently, most electric roller shutters on the market use sprocket and chain drive structures. This drive method is relatively large in size and occupies a lot of space. After installation, it will significantly encroach on the limited equipment storage space inside special equipment. At the same time, it has problems such as complex structure and inconvenient maintenance, and cannot meet the actual use requirements of special equipment such as fire trucks for space utilization, structural compactness and reliability. Summary of the Invention

[0004] This invention aims to solve the above-mentioned technical problems and proposes a manual / automatic dual-drive roller shutter door and its opening method. The specific technical solution is as follows: A manual / automatic dual-drive roller shutter door includes a roller shutter door body and a door frame for installing the roller shutter door body. The bottom of the roller shutter door body is provided with a manual / automatic lock, and the door frame is provided with a lock groove. The manual / automatic lock can engage or disengage with the lock groove on the door frame to lock or unlock the roller shutter door body. The manual / automatic lock includes a bolt, a manual unlocking mechanism, and an automatic unlocking mechanism. The bolt is provided with an unlocking surface and an unlocking hole. The manual unlocking mechanism includes an unlocking block, the end of which is provided with an inclined surface that mates with the unlocking surface. By pulling the unlocking block, the bolt can slide to complete the unlocking. The automatic unlocking mechanism includes an unlocking guide post. One end of the unlocking guide post is connected to an electric drive mechanism, and the other end is inserted into the unlocking hole. When the unlocking guide post moves upward and acts on the unlocking hole, the lock tongue can slide to complete the unlocking.

[0005] Furthermore, the electric drive mechanism includes a drive motor, a set of drive gears, and a drive flexible shaft. The drive motor is poweredly connected to the drive gears, the drive flexible shaft is connected to the unlocking guide post, and the drive flexible shaft meshes with the drive gears.

[0006] Furthermore, the manual / automatic lock also includes a lock housing, the bolt is slidably installed in the lock housing, the unlocking surface is an inclined plane, and the cross-section of the unlocking hole is a right-angled triangle.

[0007] Furthermore, the manual unlocking mechanism also includes a base, on which a mechanical lock body is provided. One end of the mechanical lock body is hinged to the base, and the other end is locked to the base by the mechanical lock body itself. The mechanical lock body is rotatably connected to the unlocking pull block, and a manual pull rod is installed on the mechanical lock body for pulling the mechanical lock body to drive the unlocking pull block to unlock.

[0008] Furthermore, the automatic unlocking mechanism also includes a limiting piece disposed on the lock housing, the limiting piece having an oblong hole limiting groove, the unlocking guide post being located in the oblong hole limiting groove, and the unlocking guide post having a guide slider disposed thereon, the guide slider being slidably embedded in the lock housing.

[0009] Furthermore, the electric drive mechanism also includes a set of electromagnetic clutches, the drive motor is connected to the electromagnetic clutches via a drive shaft, and the other end of the electromagnetic clutches is connected to the drive gear.

[0010] Furthermore, the side of the door frame is also provided with a set of storage bracket side plates, and a mounting plate is provided between the two storage bracket side plates. The electric drive mechanism is mounted on the mounting plate, and a set of guide wheels is also provided on the mounting plate.

[0011] Furthermore, it also includes a flexible shaft storage tube, which is fixed to the side plate of the storage bracket and the mounting plate; The storage bracket side plate is also equipped with a winding roller, and one end of the roller shutter door is connected to the winding roller.

[0012] A method for opening a manual / automatic dual-drive roller shutter door includes: Manual opening method: The user opens the mechanical lock body from the outside with the key, and then pulls the manual lever. The unlocking block, under the pull of the manual lever, interacts with the unlocking surface to make the lock tongue slide and unlock, thus opening the roller shutter door. Automatic opening method: When the user presses the button to start the drive motor, the drive motor drives the guide slider and the unlocking guide post to move upward through the drive flexible shaft. The unlocking guide post acts on the inclined side of the unlocking hole to make the lock tongue slide to unlock. After the unlocking guide post moves to its limit position, the drive flexible shaft can drive the roller shutter door to move upward and open.

[0013] Compared with the prior art, the technical solution of the present invention has the following beneficial technical effects: 1. This invention integrates a manual and automatic unlocking mechanism by setting a manual-automatic lock at the bottom of the roller shutter door, realizing dual modes of electric unlocking from inside the vehicle and manual unlocking from outside the vehicle. It can be opened without stopping or getting out of the vehicle, significantly improving the emergency response efficiency of special equipment such as fire trucks, and solving the problem that traditional roller shutter doors can only be opened manually from the outside, which is cumbersome and time-consuming.

[0014] 2. The compact transmission structure, which uses a drive flexible shaft in conjunction with an unlocking guide post and a beveled locking tongue, results in a smaller overall size and a more compact layout, significantly reducing the encroachment on the internal storage space of special equipment and meeting the requirements for high space utilization. In addition, the use of a drive flexible shaft can simultaneously accommodate the pulling and pushing forces required when opening and closing the door.

[0015] 3. The manual and automatic unlocking paths within the manual-automatic lock are independent and do not interfere with each other. Power is switched on and off via an electromagnetic clutch. Even when the automatic mode fails, manual operation is still possible, significantly improving structural reliability and ease of maintenance.

[0016] 4. By using limit plates and guide sliders to transfer force after unlocking, the lock cylinder structure is protected, the overall service life and operational stability are improved, and it is suitable for the harsh operating environment of special equipment. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of a manual / automatic dual-drive roller shutter door according to the present invention (the storage bracket side plate is omitted). Figure 2 This is a bottom view of a manual / automatic dual-drive roller shutter door as described in this invention; Figure 3 This is an exploded view of the manual / automatic integrated lock described in this invention; Figure 4 This is a schematic diagram of the structure of a manual / automatic dual-drive roller shutter door according to the present invention.

[0018] In the diagram: 1 - Roller shutter door body; 2-Door frame; 3-Manual / Automatic Lock, 31-Lock Tongue, 311-Unlocking Surface, 312-Unlocking Hole, 32-Manual Unlocking Structure, 321-Unlocking Pull Block, 322-Base, 323-Mechanical Lock Body, 324-Manual Pull Rod, 33-Automatic Unlocking Mechanism, 331-Unlocking Guide Post, 332-Limit Plate, 333-Guide Slider, 34-Lock Case; 4-Electric drive mechanism, 41-Drive motor, 42-Drive gear, 43-Drive flexible shaft, 44-Electromagnetic clutch; 51-Side plate of storage bracket, 52-Mounting plate, 53-Guide wheel, 54-Flexible shaft storage tube, 55-Take-up roller. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and the accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0020] like Figure 1-4 As shown: A manual / automatic dual-drive roller shutter door includes a roller shutter door body 1 and a door frame 2 for installing the roller shutter door body 1. The bottom of the roller shutter door body 1 is provided with a manual / automatic lock 3, and the door frame 2 is provided with a lock groove. The manual / automatic lock 3 can engage or disengage with the lock groove on the door frame 2 to lock or unlock the roller shutter door body 1. The manual / automatic lock 3 includes a bolt 31, a manual unlocking mechanism 32 and an automatic unlocking mechanism 33. The bolt 31 is provided with an unlocking surface 311 and an unlocking hole 312. The manual unlocking mechanism 32 includes an unlocking block 321. The end of the unlocking block 321 is provided with an inclined surface that cooperates with the unlocking surface 311. By pulling the unlocking block 321, the locking tongue 31 can be slid to complete the unlocking. The automatic unlocking mechanism 33 includes an unlocking guide post 331. One end of the unlocking guide post 331 is connected to an electric drive mechanism 4, and the other end is inserted into the unlocking hole 312. The unlocking guide post 331 moves upward and acts on the unlocking hole 312, which can make the locking tongue 31 slide to complete the unlocking.

[0021] The electric drive mechanism 4 includes a drive motor 41, a set of drive gears 42, and a drive flexible shaft 43. The drive motor 41 is poweredly connected to the drive gears 42, and the drive flexible shaft 43 is connected to the unlocking guide post 331 and meshes with the drive gears 42. When the roller shutter door 1 is opened, the drive flexible shaft 43 transmits a pulling force to the roller shutter door 1 to open it. Conversely, when the roller shutter door 1 is closed, the drive flexible shaft 43 applies a pushing force to complete the closing action. Compared with traditional chain drives and rigid rod drives, the use of this drive flexible shaft 43 can not only significantly save installation space, but also simultaneously handle both pulling and pushing forces.

[0022] Specifically, the manual / automatic lock 3 also includes a lock housing 34, the bolt 31 is slidably installed in the lock housing 34, the unlocking surface 311 is an inclined plane, and the unlocking hole 312 has a right-angled triangle cross-section. Figure 3 As shown, when the unlocking block 321 is pulled, its end bevel acts on the unlocking surface 311, causing the latch 31 to slide and unlock the door frame 2. Furthermore, when the electric drive mechanism 4 drives the unlocking guide post 331 upwards, the unlocking guide post 331 acts on the bevel of the unlocking hole 312, similarly causing the latch 31 to slide and unlock. These two unlocking methods are independent and do not affect each other.

[0023] In a preferred embodiment, the manual unlocking mechanism 32 further includes a base 322, on which a mechanical lock body 323 is provided. One end of the mechanical lock body 323 is hinged to the base 322, and the other end is locked to the base 322 by the mechanical lock body 323 itself. The mechanical lock body 323 is rotatably connected to the unlocking pull block 321. A manual pull rod 324 is installed on the mechanical lock body 323 for pulling the mechanical lock body 323 to drive the unlocking pull block 321 to unlock.

[0024] In a preferred embodiment, the automatic unlocking mechanism 33 further includes a limiting piece 332 disposed on the lock housing 34. The limiting piece 332 has a waist-shaped limiting groove, and the unlocking guide post 331 is located in the waist-shaped limiting groove. The unlocking guide post 331 is provided with a guide slider 333, which is slidably embedded in the lock housing 34. When the drive motor 41 drives the unlocking guide post 331 through the drive flexible shaft 43, the guide slider 333 provides linear motion for it. At the same time, the length of the limiting groove on the limiting piece 332 is slightly smaller than the length of the right angle side of the unlocking hole 312. After unlocking, the force of pulling the roller shutter door 1 can be concentrated on the unlocking guide post 331 and the limiting piece 332, avoiding the unlocking guide post 331 directly acting on the lock tongue 31, thereby effectively protecting the lock cylinder structure.

[0025] Furthermore, the electric drive mechanism 4 also includes an electromagnetic clutch 44. The drive motor 41 is connected to the electromagnetic clutch 44 via a drive shaft, and the other end of the electromagnetic clutch 44 is connected to the drive gear 42. When the user uses the automatic opening mode, the electromagnetic clutch 44 and the drive gear 42 are connected simultaneously when the drive motor 41 is started, allowing the torque of the drive motor 41 to be transmitted to the drive gear 42, thereby opening the roller shutter door 1. When the automatic opening mode is not used, the electromagnetic clutch 44 and the drive gear 42 are disconnected, ensuring that the manual opening mode can be used to open the roller shutter door 1 at any time.

[0026] In a preferred embodiment, the side of the door frame 2 is also provided with a set of storage bracket side plates 51, and an mounting plate 52 is provided between the two storage bracket side plates 51. The electric drive mechanism 4 is mounted on the mounting plate 52, and a set of guide wheels 53 is also provided on the mounting plate 52. When the roller shutter door 1 is opened or closed, the guide wheels 53 play a guiding and supporting role for the roller shutter door 1.

[0027] In addition, it also includes a flexible shaft storage tube 54, which is fixed to the side plate 51 of the storage bracket and the mounting plate 52; the flexible shaft storage tube 54 is used to store the drive flexible shaft 43, and the drive flexible shaft 43 automatically enters the flexible shaft storage tube 54 when it is driven to rise.

[0028] The storage bracket side plate 51 is also provided with a winding roller 55, and one end of the roller shutter door 1 is connected to the winding roller 55.

[0029] A method for opening a manual / automatic dual-drive roller shutter door includes: Manual opening method: The user opens the mechanical lock body 323 from the outside with a key, and then pulls the manual lever 324. The unlocking block 321, under the pull of the manual lever 324, interacts with the unlocking surface 311 to make the lock tongue 31 slide to unlock, and the roller shutter door 1 opens. Automatic opening method: When the user presses the button to start the drive motor 41, the drive motor 41 drives the guide slider 333 and the unlocking guide post 331 to move upward through the drive flexible shaft 43. The unlocking guide post 331 acts on the inclined side of the unlocking hole 312 to make the lock tongue 31 slide to unlock. After the unlocking guide post 331 moves to its limit position, the drive flexible shaft 43 can drive the roller shutter door 1 to move upward and open.

[0030] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A manual / automatic dual-drive roller shutter door, comprising a roller shutter door body (1) and a door frame (2) for mounting the roller shutter door body (1), characterized in that: The bottom of the roller shutter door (1) is provided with a manual-automatic lock (3), and the door frame (2) is provided with a lock groove. The manual-automatic lock (3) can engage or disengage with the lock groove on the door frame (2) to lock or unlock the roller shutter door (1). The manual-automatic lock (3) includes a bolt (31), a manual unlocking mechanism (32) and an automatic unlocking mechanism (33). The bolt (31) is provided with an unlocking surface (311) and an unlocking hole (312). The manual unlocking mechanism (32) includes an unlocking block (321). The end of the unlocking block (321) is provided with an inclined surface that cooperates with the unlocking surface (311). By pulling the unlocking block (321), the locking tongue (31) can be slid to complete the unlocking. The automatic unlocking mechanism (33) includes an unlocking guide post (331). One end of the unlocking guide post (331) is connected to an electric drive mechanism (4), and the other end is inserted into the unlocking hole (312). The unlocking guide post (331) moves upward and acts on the unlocking hole (312), which can make the locking tongue (31) slide to complete the unlocking.

2. The manual / automatic dual-drive roller shutter door according to claim 1, characterized in that, The electric drive mechanism (4) includes a drive motor (41), a set of drive gears (42), and a drive flexible shaft (43). The drive motor (41) is poweredly connected to the drive gears (42), and the drive flexible shaft (43) is connected to the unlocking guide post (331). The drive flexible shaft (43) meshes with the drive gears (42).

3. The manual / automatic dual-drive roller shutter door according to claim 1, characterized in that, The manual / automatic lock (3) also includes a lock shell (34), the lock tongue (31) is slidably installed in the lock shell (34), the unlocking surface (311) is an inclined surface, and the cross section of the unlocking hole (312) is a right triangle.

4. A manual / automatic dual-drive roller shutter door according to claim 3, characterized in that, The manual unlocking mechanism (32) also includes a base (322), on which a mechanical lock body (323) is provided. One end of the mechanical lock body (323) is hinged to the base (322), and the other end is locked to the base (322) by the mechanical lock body (323) itself. The mechanical lock body (323) is rotatably connected to the unlocking pull block (321). A manual pull rod (324) is installed on the mechanical lock body (323) for pulling the mechanical lock body (323) to drive the unlocking pull block (321) to unlock.

5. A manual / automatic dual-drive roller shutter door according to claim 3, characterized in that, The automatic unlocking mechanism (33) also includes a limiting piece (332) provided on the lock shell (34). The limiting piece (332) is provided with a waist-shaped hole limiting groove. The unlocking guide post (331) is located in the waist-shaped hole limiting groove, and the unlocking guide post (331) is provided with a guide slider (333). The guide slider (333) is slidably embedded in the lock shell (34).

6. A manual / automatic dual-drive roller shutter door according to claim 1, characterized in that, The electric drive mechanism (4) also includes a set of electromagnetic clutches (44), the drive motor (41) is connected to the electromagnetic clutches (44) through the drive shaft, and the other end of the electromagnetic clutches (44) is connected to the drive gear (42).

7. A manual / automatic dual-drive roller shutter door according to claim 2, characterized in that, The side of the door frame (2) is also provided with a set of storage bracket side plates (51), and a mounting plate (52) is provided between the two storage bracket side plates (51). The electric drive mechanism (4) is mounted on the mounting plate (52), and a set of guide wheels (53) is also provided on the mounting plate (52).

8. A manual / automatic dual-drive roller shutter door according to claim 7, characterized in that, It also includes a flexible shaft storage tube (54), which is fixed to the side plate (51) of the storage bracket and the mounting plate (52); The storage bracket side plate (51) is also provided with a winding roller (55), and one end of the roller shutter door body (1) is connected to the winding roller (55).

9. A method for opening a manual / automatic dual-drive roller shutter door, implemented in any one of claims 1-8, characterized in that, include: Manual opening method: The user opens the mechanical lock body (323) from the outside with a key, and then pulls the manual lever (324). The unlocking block (321) is pulled by the manual lever (324) and interacts with the unlocking surface (311) to make the lock tongue (31) slide to unlock, and the roller shutter door (1) opens. Automatic opening method: The user presses the button to start the drive motor (41). The drive motor (41) drives the guide slider (333) and the unlocking guide post (331) to move upward through the drive flexible shaft (43). The unlocking guide post (331) acts on the inclined side of the unlocking hole (312) to make the lock tongue (31) slide to unlock. After the unlocking guide post (331) moves to its limit position, the drive flexible shaft (43) can drive the roller shutter door body (1) to move upward and open.

Images