A multi-gear linkage anti-theft door

Abstract

A multi-gear linkage anti-theft door comprises a door panel, a lock and a handle. The door panel is circular, and a mounting plate is formed on the back of the door panel. The mounting plate comprises a chassis and two concentric outer and inner rings. The size of the outer ring matches the door hole. The lock comprises a bolt, a linkage gear and an electromagnetic lock. The front end face of the handle is provided with a fingerprint recognition area for opening the electromagnetic lock. The linkage gear is arranged at the center of the back of the door panel. The handle can be mounted on the door panel with a certain angle and is connected to the linkage gear through a handle shaft. The bolt is arranged in multiple radial intervals along the circumference. The outer and inner rings are provided with guide holes for the bolt to penetrate and slide radially. A tooth surface is provided on one side of the lower end of the bolt, which is connected to the linkage gear through a transmission gear set. The bolt can be extended and retracted through the forward and reverse rotation of the linkage gear. The invention has a simple and reasonable structure and a beautiful appearance. It is not only flexible in operation and effectively improves the anti-theft performance, but also greatly improves the product quality and service life.

Description

Technical Field

[0001] The invention belongs to the technical field of safe cabinets and relates to an anti-theft door, in particular to a multi-gear linkage type anti-theft door. Background Art

[0002] With the rapid improvement of people's living standards, safes or safes have entered the lives of the general public. People can put precious jewelry, cash, important bills and documents in safes. The anti-theft safe includes a box body and a door panel, and a lock is installed on the door panel. The lock can be an electronic password lock, a mechanical password lock, or a fingerprint password lock. Because the steel plate thickness of the box body and door panel of the anti-theft safe is relatively thick, thieves generally give priority to attacking the lock when stealing. Existing locks usually install bolts on the side or upper and lower sides of the door panel, and lock the box body through the extension and contraction of the bolt, but the anti-theft performance is not ideal.

[0003] After investigation, the existing Chinese patent number CN202022986110.3, "A safe anti-theft door structure", includes a door panel, a lock and a lock plate are installed on the door panel, the lock plate is slidably installed on the door panel and forms a plug-in locking match with the body of the safe, and a locking device is also installed on the door panel. The locking device includes a fragile plate installed between the door panel and the lock, and a locking assembly used in conjunction with the lock plate. The locking assembly includes a locking member slidably installed on the door panel, and an elastic member that drives it to move and forms a snap-on locking match with the lock plate, and the locking member is connected to the fragile plate by a connecting rope. When the lock is attacked, the fragile plate is attacked and shattered. At the same time as the fragile plate is shattered, the connecting rope no longer restricts the movement of the locking member, and the locking member can move under the drive of the elastic member and form a snap-on locking match with the lock plate, thereby achieving the purpose of locking the lock plate, and then achieving the purpose of still being able to achieve the anti-theft function of the safe after the lock is attacked. This structure increases the anti-theft function of the anti-theft door, but the structure is not concise enough, especially for small anti-theft doors, which is not conducive to assembly and use. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a multi-gear linkage anti-theft door with reasonable structure, flexible and convenient operation and good anti-theft performance in view of the above technical status quo.

[0005] The technical solution adopted by the present invention to solve the above technical problems is: a multi-gear linkage anti-theft door, including a door panel, a lock installed on the door panel and a handle, characterized in that: the door panel is circular, and a mounting plate for the lock to be installed is formed on the back of the door panel, the mounting plate includes a bottom plate and two concentrically arranged outer rings and inner rings, wherein the size of the outer ring matches the door hole of the box body, the lock includes a bolt, a linkage gear matched with the handle and an electromagnetic lock for locking the handle, the front end surface of the handle is provided with a fingerprint recognition area for opening the electromagnetic lock, and the linkage gear is provided with a fingerprint recognition area for opening the electromagnetic lock. It is set at the center position of the back side of the door panel, the handle can be installed on the door panel with a limited angle and rotated, and is connected to the linkage gear through the handle shaft. There are multiple door bolts arranged at radial intervals along the circumference, and the outer ring and the inner ring are provided with guide holes for the door bolts to pass through and slide radially. A tooth surface is provided on one side of the lower end of the door bolt, and a transmission gear set is provided on the mounting plate and on the outside of the linkage gear. One end of the transmission gear set is meshed with the tooth surface of the door bolt, and the other end is meshed with the linkage gear. The extension and retraction of the door bolt is realized by the forward and reverse rotation of the linkage gear, thereby realizing the door bolt function.

[0006] As an improvement, the handle is a cylindrical six-pronged handle. A center hole for installing the handle is opened in the center of the door panel. The rear section of the handle passes through the door panel and is connected to the linkage gear. A convex ring that abuts against the door panel is formed in the middle of the outer circumference of the handle, and six prongs are evenly spaced on the outer circumference of the front section of the handle.

[0007] Furthermore, a circular hole corresponding to the center hole of the door panel is provided in the middle of the chassis of the mounting plate, and an installation cavity for installing the electromagnetic lock is provided between the chassis and the door panel. The electromagnetic lock is arranged in the installation cavity on the side of the handle. The electromagnetic lock is fixed to the door panel or the mounting plate by screws. An arc plate is protruding on one side of the rear section of the handle, and a slot hole cooperating with the pin of the electromagnetic lock is provided on the arc plate.

[0008] Furthermore, the transmission gear group includes a first gear and a second gear, which are respectively rotatably mounted on the chassis of the mounting plate and located between the inner ring and the linkage gear. One end of the first gear is meshed with the linkage gear, and the other end is meshed with the second gear. One end of the second gear is meshed with the tooth surface of the door bolt, and the other end is meshed with the first gear.

[0009] Furthermore, the chassis is provided with a convex shaft for mounting and rotating the first gear and the second gear, the end of the convex shaft is provided with an internal thread, the first gear and the second gear are respectively sleeved on the convex shaft and positioned by screwing bolts into the internal thread.

[0010] Furthermore, both ends of the handle shaft are double-cut cylinders, and corresponding double-cut circular holes are provided in the inner middle part of the handle and the inner middle part of the linkage gear.

[0011] Furthermore, one side of the door panel is rotatably connected to the box body via a hinge, and mounting seats for mounting a handle are provided at the upper and lower ends of the door panel.

[0012] Finally, the door panel, mounting plate, handle and lock are all made of 304 stainless steel. The mounting plate and the door panel are integrated. A decorative panel is embedded in the front end of the door panel, and a stainless steel edging is fixedly covered at the center hole of the door panel.

[0013] Compared with the prior art, the advantages of the present invention are: the lock adopts a plurality of door bolts with circular distribution and radial sliding to lock the door, which greatly improves the anti-theft performance; all metal parts are made of 304 stainless steel, which is corrosion-resistant and not easy to rust, and is not easy to be damaged by grinding and flame cutting; the door bolt adopts multi-gear linkage, with high positioning accuracy, flexible operation and no jamming. The present invention has a simple and reasonable structure and beautiful appearance. It is not only flexible in operation and effectively improves the anti-theft performance, but also greatly improves the product quality and service life. The present invention is suitable for small safes used to place valuable watches and jewelry. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front structural schematic diagram of an embodiment of the present invention;

[0015] Figure 2 is a schematic diagram of the back structure of an embodiment of the present invention;

[0016] Figure 3 It is a schematic diagram of the side structure of an embodiment of the present invention;

[0017] Figure 4 Detailed description of an embodiment of the present invention. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below with reference to the accompanying drawings.

[0019] like Figures 1 to 4As shown, a multi-gear linkage anti-theft door comprises a door panel 1, a lock and a handle 2 installed on the door panel 1. The door panel 1 is circular, and a mounting plate 3 for mounting the lock is formed on the back of the door panel 1. The mounting plate 3 comprises a bottom plate and two concentrically arranged outer rings 31 and inner rings 32, wherein the size of the outer ring 31 matches the door hole of the box body, the lock comprises a bolt 5, a linkage gear 4 matched with the handle 2, a transmission gear set 6 and an electromagnetic lock 9 for locking the handle 2, the handle 2 is a cylindrical six-pronged handle, and the front end surface of the handle 2 is provided with a fingerprint recognition area 20 for opening the electromagnetic lock 9, the linkage gear 4 It is arranged at the center position of the back side of the door panel 1, the handle 2 can be installed on the door panel 4 to be rotatable at a certain angle, and is connected to the linkage gear 4 through the handle shaft 10. The door bolt 5 is arranged in multiple numbers at radial intervals along the circumference, and can usually be evenly distributed on the circumference. The outer ring 31 and the inner ring 32 are provided with guide holes 311 and 321 for the door bolt 5 to pass through and slide radially. A tooth surface is provided on one side of the lower end of the door bolt 5, one end of the transmission gear set 6 is meshed with the tooth surface of the door bolt 5, and the other end is meshed with the linkage gear 4. The extension and retraction of the door bolt 5 is realized by the forward and reverse rotation of the linkage gear 4, thereby realizing the door bolt function.

[0020] The specific structure is as follows: a center hole for installing the handle 2 is provided at the center of the door panel 1, the rear section of the handle 2 passes through the door panel 1 and is connected to the linkage gear 4, a convex ring is formed in the middle of the outer peripheral surface of the handle 2 to abut against the door panel 1, and six forks 21 are evenly spaced and distributed on the outer peripheral surface of the front section of the handle 2. A circular hole corresponding to the center hole of the door panel 2 is provided in the middle of the chassis of the mounting plate 3, and a mounting cavity for installing the electromagnetic lock 9 is provided between the chassis and the door panel 1. The electromagnetic lock 9 is arranged in the mounting cavity on the side of the handle 2, and the electromagnetic lock 9 is fixed to the door panel 1 or the mounting plate 3 by screws. An arc plate 22 is provided on one side of the rear section of the handle 2, and a slot 23 is provided on the arc plate 22 to match the latch 91 of the electromagnetic lock 9, and the electromagnetic lock 9 locks the handle by inserting the latch 91 into the slot 23 of the handle 2. The transmission gear set 6 is mounted on the chassis of the mounting plate 3 and is located between the inner ring 32 and the linkage gear 4. The transmission gear set 6 includes a first gear 61 and a second gear 62. A convex shaft 33 is arranged on the chassis for the first gear 61 and the second gear 62 to be mounted and rotated. The end of the convex shaft 33 is provided with an internal thread. The first gear 61 and the second gear 62 are respectively sleeved on the convex shaft 33 and are positioned by screwing bolts into the internal threads. One end of the first gear 61 meshes with the linkage gear 4 and the other end meshes with the second gear 62. One end of the second gear 62 meshes with the tooth surface of the bolt 5 and the other end meshes with the first gear 61. Of course, the transmission gear set 6 can also be designed as a gear set with more stages of transmission, and the principle is similar.

[0021] The two ends of the handle shaft 10 are double-cut cylinders, a double-cut circular hole 25 is provided in the inner middle of the handle 2, and a corresponding double-cut circular hole is provided in the inner middle of the linkage gear. The handle shaft 10 is positioned in the double-cut circular hole 25 by a size matching device.

[0022] One side of the door panel 1 is rotatably connected to the box body through a hinge, and mounting seats 8 for mounting handles are provided at the upper and lower ends of the door panel 1. The door panel 1, mounting plate 3, handle 2, bolt 5 and other locks are all made of 304 stainless steel, the mounting plate 3 and the door panel 1 are integrated, a decorative panel is embedded on the front end surface of the door panel 2, and a stainless steel edging 7 is fixedly covered at the center hole of the door panel 2.

[0023] In this embodiment, there are 12 bolts 5 evenly distributed on the circumference, and correspondingly, there are 12 transmission gear sets 6. The limited rotation structure of the handle 2 is consistent with the prior art and will not be described here.

[0024] The specific operation process is as follows:

[0025] When the door panel 1 is closed, touch the fingerprint recognition area 20 on the front face of the handle 2. After the fingerprint is successfully input, the electromagnetic lock 9 is opened, and the handle 2 is rotated clockwise to drive the linkage gear 4 to rotate clockwise, and the transmission gear set 6 rotates. The bolt 5 is driven by the transmission gear set 6 to retract inward. When the bolt 5 is separated from the door frame lock hole of the box body, pull the handle to open the door panel 1;

[0026] After closing the door, the handle 2 is rotated counterclockwise to drive the linkage gear 4 to rotate counterclockwise, and the transmission gear set 6 rotates. The bolt 5 is extended outward under the drive of the transmission gear set 6, enters the door frame lock hole of the box body and is locked. The latch pin 91 of the electromagnetic lock 9 also falls into the slot 23 to lock the handle 2.

[0027] Since the bolt of this embodiment adopts multiple bolts distributed in a circumferential manner and sliding radially, all metal parts are made of 304 stainless steel, which is not only corrosion-resistant and not easy to rust, but also has high strength and is not easy to be damaged by grinding and flame cutting, which greatly improves the anti-theft performance; the bolt adopts multi-gear linkage, has high positioning accuracy, and is flexible in operation without jamming.

[0028] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A multi-gear linkage anti-theft door, comprising a door panel, a lock and a handle mounted on the door panel, characterized in that: The door panel is circular, and a mounting plate for installing the lock is formed on the back of the door panel. The mounting plate includes a bottom plate and two concentrically arranged outer rings and inner rings, wherein the size of the outer ring matches the door hole of the box body, and the lock includes a door bolt, a linkage gear matched with the handle, and an electromagnetic lock for locking the handle. The front end surface of the handle is provided with a fingerprint recognition area for opening the electromagnetic lock, and the linkage gear is arranged at the center position of the back of the door panel. The handle can be mounted on the door panel with a certain angle and limited rotation, and is connected to the linkage gear through the handle shaft. The door bolt is a plurality of door bolts arranged at radial intervals along the circumference, and guide holes for the door bolt to penetrate and radially extend and slide are opened on the outer ring and the inner ring. A tooth surface is provided on one side of the lower end of the door bolt, and a transmission gear set is provided on the mounting plate and on the outer side of the linkage gear. One end of the transmission gear set is meshed with the tooth surface of the door bolt, and the other end is meshed with the linkage gear. The extension and contraction of the door bolt is realized by the positive and negative rotation of the linkage gear, thereby realizing the door bolt function; A center hole for installing the handle is provided at the center of the door panel, the rear section of the handle passes through the door panel and is connected to the linkage gear, and a convex ring is formed in the middle of the outer peripheral surface of the handle to abut against the door panel; A circular hole corresponding to the central hole of the door panel is provided in the middle of the chassis of the mounting plate, and an installation cavity for installing the electromagnetic lock is provided between the chassis and the door panel. The electromagnetic lock is arranged in the installation cavity on the side of the handle. The electromagnetic lock is fixed to the door panel or the mounting plate by screws. An arc plate is convexly provided on one side of the rear section of the handle, and a slot hole cooperating with the pin of the electromagnetic lock is provided on the arc plate.

2. The multi-gear linkage anti-theft door according to claim 1 is characterized in that: The handle is a cylindrical six-pronged handle, and the six prongs are evenly spaced and distributed on the outer peripheral surface of the front section of the handle.

3. The multi-gear linkage anti-theft door according to claim 1, characterized in that: The transmission gear set includes a first gear and a second gear, which are rotatably mounted on the chassis of the mounting plate and located between the inner ring and the linkage gear. One end of the first gear is meshed with the linkage gear, and the other end is meshed with the second gear. One end of the second gear is meshed with the tooth surface of the door bolt, and the other end is meshed with the first gear.

4. The multi-gear linkage anti-theft door according to claim 3 is characterized in that: The chassis is provided with a convex shaft for mounting and rotating the first gear and the second gear, the end of the convex shaft is provided with an internal thread, the first gear and the second gear are respectively sleeved on the convex shaft and are positioned by screwing bolts into the internal thread.

5. The multi-gear linkage anti-theft door according to any one of claims 1 to 4, characterized in that: The two ends of the handle shaft are double-cut cylinders, and the inner middle part of the handle and the inner middle part of the linkage gear are provided with corresponding double-cut circular holes.

6. The multi-gear linkage anti-theft door according to any one of claims 1 to 4, characterized in that: One side of the door panel is rotatably connected to the box body through a hinge, and mounting seats for mounting a handle are provided at the upper and lower ends of the door panel.

7. The multi-gear linkage anti-theft door according to any one of claims 1 to 4, characterized in that: The door panel, mounting plate, handle and lock are all made of 304 stainless steel. The mounting plate and the door panel are integrated. A decorative panel is embedded in the front end surface of the door panel. The center hole of the door panel is fixedly covered with a stainless steel edging.

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