An electronic lock

Abstract

An electronic lock. The problem of the existing electronic locks with complex structures and unreliable actions is solved. It includes a lock body and a main lock tongue. The lock body is provided with a driving device. The driving device is connected to the main lock tongue through a transmission mechanism and is used to drive the main lock tongue to reciprocate. The main lock tongue has a first position driven by the driving device to extend out of the lock body and interlock, and a second position retracted into the lock body after being unlocked. The transmission mechanism includes a toggle ring. The toggle ring has a first state of interlocking the main lock tongue when the main lock tongue extends out of the lock body, a second state driven by the driving device to unlock and drive the main lock tongue to move relative to the lock body, and a third state of interlocking the main lock tongue when the main lock tongue is retracted into the lock body. The present invention also has the advantages of simple structure, convenient assembly, reliable action, and long service life.

Description

Technical Field

[0001] The invention relates to a lock, in particular to an electronic lock. Background Art

[0002] Locks refer to devices that seal things, including locks, keys and their accessories. They are generally interpreted as "sealing devices that can only be opened with a key". Now, in addition to being opened with keys, locks can also be opened with commands such as light, electricity, magnetism, sound and fingerprints. Locks are not only protective equipment, but also have the functions of "management" and "decoration".

[0003] An electronic lock is an electronic product that controls the circuit or chip operation (access control system) through password input, thereby controlling the closing of the mechanical switch to complete the unlocking and locking tasks. There are many types of electronic locks, including simple circuit products and cost-effective products based on chips. The widely used electronic password locks are based on chips and are implemented through programming. Electronic door locks have emerged with the development of electronic technology. They are incomparable to mechanical locks in terms of convenience of use, anti-illegal opening, and intelligent management. Therefore, they are widely used in industries with high security requirements. The most common electronic door locks on the market are magnetic cards, IC cards, TM cards, and radio frequency cards. In the locking function of electronic locks, the action and interlocking of the main lock tongue are crucial. The main lock tongue drive part of the existing electronic lock has a complex structure. Although it can achieve interlocking when locking the door, the interlocking is not reliable and it is easy to open the interlocking part from the outside; the main lock tongue is usually not set with interlocking when it is in the lock body, and the product will malfunction and extend, affecting the user's use. The interlocking is easy to fail, making the product's safety performance poor. Summary of the invention

[0004] In order to solve the problems of complex structure and unreliable operation of existing electronic locks in the background technology, the present invention provides an electronic lock.

[0005] The technical solution of the present invention is: an electronic lock, including a lock body and a main lock tongue, the lock body is provided with a driving device, the driving device is connected to the main lock tongue through a transmission mechanism and is used to drive the main lock tongue to reciprocate, the main lock tongue has a first position driven by the driving device to extend out of the lock body and interlock, and a second position retracted into the lock body after unlocking, the transmission mechanism includes a toggle ring, the toggle ring has a first state of interlocking the main lock tongue when the main lock tongue extends out of the lock body, a second state driven by the driving device to unlock and drive the main lock tongue to move relative to the lock body, and a third state of interlocking the main lock tongue when the main lock tongue is retracted into the lock body.

[0006] As an improvement of the present invention, the toggle ring is provided with a toggle block, the main lock tongue includes a transmission plate, the transmission plate is provided with an interlocking groove, the toggle block is arranged in the interlocking groove and is interlocked with the transmission plate when the main lock tongue is in the first position and the second position respectively.

[0007] As a further improvement of the present invention, an interlocking notch is provided in the interlocking groove, and the interlocking notch is V-shaped. The toggle block is provided with a first interlocking surface, and the first interlocking surface is inserted into the V-shaped interlocking notch when the main lock tongue is in the first position and the second position. The toggle block is provided with a second interlocking surface that is compatible with the inner wall of the interlocking groove on the transmission plate.

[0008] As a further improvement of the present invention, an opening is provided on the interlocking groove of the transmission plate, and a transmission surface is provided on the transmission plate to facilitate the pushing of the toggle block. When the toggle ring is in the second state, the toggle block extends into the opening of the interlocking groove and fits against the transmission surface, and drives the transmission plate to reciprocate linearly through the rotation of the toggle ring.

[0009] As a further improvement of the present invention, the lock body is provided with a mounting shaft, the toggle ring is sleeved on the mounting shaft, the transmission plate is provided with a guide groove, the mounting shaft is arranged through the guide groove, and the transmission plate is provided with an elastic member, and the elastic member has a movement tendency to drive the toggle ring to the first state or the third state through the toggle block.

[0010] As a further improvement of the present invention, the driving device includes an electric driving mechanism, the electric driving mechanism includes an electric driving element and a driving gear, the driving gear is coaxially arranged with the toggle ring, the driving gear is provided with a driving block for driving the toggle ring to rotate, the toggle ring is provided with a toggle groove, the driving block is arranged in the toggle groove of the toggle ring and has an idling stroke between the toggle groove and the inner wall of the toggle groove.

[0011] As a further improvement of the present invention, the driving device includes a key driving mechanism, the key driving mechanism includes a key socket for inserting the key and a key driving plate driven by the key, the transmission mechanism includes a transmission gear, the key driving plate is connected to the toggle ring through the transmission gear and drives the main lock tongue to reciprocate linear motion through the toggle ring.

[0012] As a further improvement of the present invention, the driving device includes an inner handle driving mechanism, the inner handle driving mechanism includes an inner handle and a driving member driven by the inner handle, the transmission mechanism includes a transmission gear, the driving member is connected to the toggle ring through the transmission gear and drives the main lock tongue to reciprocate linear motion through the toggle ring.

[0013] As a further improvement of the present invention, a driving groove is provided on the toggle ring, a transmission block is provided on the transmission gear, the transmission block is arranged in the driving groove and a rotation gap is provided between the transmission block and the inner wall of the driving groove, a slanted tongue, a slanted tongue limiter and a slanted tongue driving plate are provided in the lock body, the slanted tongue driving plate is connected to the slanted tongue through the slanted tongue limiter, and a stop shoulder for driving the slanted tongue driving plate is provided on the transmission gear.

[0014] As a further improvement of the present invention, the driving gear is provided with a driving shaft for unlocking the inclined tongue, and the transmission gear is provided with a clearance groove for the driving shaft to rotate. When the main lock tongue is retracted into the lock body, the driving shaft pushes the back side of the stop shoulder so that the stop shoulder pushes the inclined tongue driving plate to unlock the inclined tongue.

[0015] The beneficial effects of the present invention are that the main lock tongue is driven to move and interlock is realized by the toggle ring, the structure is simple, the interlock is reliable, and the toggle ring can realize interlock when the main lock tongue is in the first position and the second position, so as to prevent the door lock from being unlocked and opened by a person from the outside and to prevent the main lock tongue from erroneously extending, and realize forced interlock by physical means, and the interlock is reliable. The present invention also has the advantages of simple structure, convenient assembly, reliable action, long service life, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Attached Figure 1 It is a schematic structural diagram of an embodiment of the present invention.

[0017] Attached Figure 2 For attachment Figure 1 Schematic diagram of the structure inside the middle lock body 1.

[0018] Attached Figure 3 It is a structural schematic diagram of the main locking tongue 2 in the first position according to the embodiment of the present invention.

[0019] Attached Figure 4 It is a schematic structural diagram of the main lock tongue 2 when it is retracted according to an embodiment of the present invention.

[0020] Attached Figure 5 It is a schematic structural diagram of the main lock tongue when it is retracted into the lock body according to an embodiment of the present invention.

[0021] Attached Figure 6 For attachment Figure 1 Schematic diagram of the explosion structure.

[0022] Attached Figure 7 For attachment Figure 6 Schematic diagram of the explosion structure.

[0023] Attached Figure 8 For attachment Figure 7 A schematic diagram of the structure of the middle toggle ring 71 in another direction.

[0024] Attached Fig. 9 For attachment Figure 7 A schematic structural diagram of the middle transmission gear 42 in another direction.

[0025] Attached Fig.10 For attachment Figure 7 Schematic diagram of the structure of the middle driving gear 62.

[0026] In the figure, 1, lock body; 11, mounting shaft; 12, oblique tongue; 13, oblique tongue stopper; 14, oblique tongue driving plate; 15, tongue contact; 2, main lock tongue; 3, driving device; 4, transmission mechanism; 41, toggle ring; 411, toggle block; 4111, first interlocking surface; 4112, second interlocking surface; 412, toggle groove; 413, driving groove; 42, transmission gear; 421, transmission block; 422, shoulder; 423, give way groove; 5, transmission plate; 51, interlocking groove; 52. interlocking notch; 53. opening; 54. transmission surface; 55. guide groove; 56. elastic member; 57. pressing member; 6. electric drive mechanism; 61. electric drive element; 62. drive gear; 621. drive block; 622. drive shaft; 63. gear transmission assembly; 7. key drive mechanism; 71. key socket; 72. key drive plate; 73. key paddle; 731. key gear portion; 8. inner handle drive mechanism; 81. inner handle; 82. drive member. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are further described below in conjunction with the accompanying drawings:

[0028] Depend on Figure 1 Combination Figure 2-10 As shown, an electronic lock comprises a lock body 1, a main lock tongue 2 and a touch tongue 15, wherein the lock body 1 is provided with a driving device 3, wherein the driving device 3 is connected to the main lock tongue 2 through a transmission mechanism 4 and is used to drive the main lock tongue 2 to reciprocate, wherein the main lock tongue 2 has a first position in which the driving device 3 drives the main lock tongue 2 to extend out of the lock body 1 and interlock (referring to the main lock tongue as the lock body and interlocking with the door) and a second position in which the main lock tongue 2 is retracted into the lock body 1 after being unlocked, wherein the transmission mechanism 4 comprises a toggle ring 41, wherein the toggle ring 41 has a first state in which the main lock tongue 2 is interlocked when the main lock tongue 2 extends out of the lock body 1 (the interlocking refers to the toggle ring interlocking the main lock tongue to prevent the main lock tongue from malfunctioning), a second state in which the driving device 3 drives the main lock tongue 2 to unlock and drive the main lock tongue 2 to move relative to the lock body 1, and a third state in which the main lock tongue 2 is interlocked when the main lock tongue 2 is retracted into the lock body 1. The present invention drives the main lock tongue to move and realize interlocking through the toggle ring, has a simple structure, reliable interlocking, and can realize interlocking when the main lock tongue is in the first position and the second position through the toggle ring, so as to prevent the door lock from being unlocked and opened by a person from the outside and to prevent the main lock tongue from erroneously extending, realize forced interlocking through physical means, and have reliable interlocking. The present invention also has the advantages of simple structure, convenient assembly, reliable action, long service life, etc.

[0029] The toggle ring 41 is provided with a toggle block 411, the main lock tongue 2 includes a transmission plate 5, the transmission plate 5 is provided with an interlocking groove 51, the toggle block 411 is provided in the interlocking groove 51 and is interlocked with the transmission plate 5 when the main lock tongue 2 is in the first position and the second position. Specifically, the interlocking groove 51 is provided with an interlocking notch 52, the interlocking notch 52 is V-shaped, the toggle block 411 is provided with a first interlocking surface 4111, the first interlocking surface 4111 is inserted into the V-shaped interlocking notch 52 when the main lock tongue 2 is in the first position and the second position, and the toggle block 411 is provided with a second interlocking surface 4112 adapted to the inner wall of the interlocking groove 51 on the transmission plate 5. More specifically, the first interlocking surface of the toggle block is square and inserted into the interlocking notch to achieve interlocking, so that the toggle block can reliably prevent the main lock tongue from malfunctioning when interlocking, and can be quickly unlocked by rotation when unlocking. At the same time, it can reliably drive the transmission plate to move. The second interlocking surface can provide position limiting support for the toggle block and can cooperate with the first interlocking surface to achieve interlocking, making the interlocking more reliable and the product stronger.

[0030] The interlocking groove 51 of the transmission plate is provided with an opening 53, and the transmission plate 5 is provided with a transmission surface 54 that is convenient for the toggle block 411 to push. When the toggle ring 41 is in the second state, the toggle block 411 extends into the opening 53 of the interlocking groove 51 and fits against the transmission surface 54, and drives the transmission plate 5 to reciprocate linearly through the rotation of the toggle ring 41. The opening is provided to facilitate the unlocking and giving way of the toggle block, and to facilitate the unlocking of the toggle ring. At the same time, after the toggle ring is unlocked, the transmission plate can be driven to move through the transmission surface, so that the movement of the transmission plate is stable and reliable.

[0031] The lock body 1 is provided with a mounting shaft 11, the toggle ring 41 is sleeved on the mounting shaft 11, the transmission plate 5 is provided with a guide groove 55, the mounting shaft 11 is arranged through the guide groove 55, and the transmission plate 5 is provided with an elastic member 56, and the elastic member 56 has a movement tendency of driving the toggle ring 41 to the first state or the third state through the toggle block 411. The setting of the guide groove makes the transmission plate move smoothly and reliably, and makes the main lock tongue have better linear running performance. The setting of the elastic member can press the toggle block into the interlocking notch to make the product interlocking reliable, which is a preferred mode of the present invention.

[0032] The driving device 3 includes an electric driving mechanism 6, which includes an electric driving element 61 and a driving gear 62. The driving gear 62 is coaxially arranged with the toggle ring 41. The driving gear 62 is provided with a driving block 621 for driving the toggle ring 41 to rotate. The toggle ring 41 is provided with a toggle groove 412. The driving block 621 is arranged in the toggle groove 412 of the toggle ring 41 and has an idle stroke with the inner wall of the toggle groove 412. Specifically, the specific driving gear, toggle ring, and transmission gear are all coaxially arranged and sleeved outside the mounting shaft. More specifically, the electric driving element is connected to the driving gear through a gear transmission assembly 63, and more specifically, the electric driving element is connected to the driving gear through a bevel gear transmission. Such a structure enables the driving element to reliably drive the driving gear to rotate, and the driving gear can reliably drive the toggle ring to rotate, thereby driving the transmission plate to reciprocate linearly through the toggle ring. Of course, in the actual production process, the electric driving mechanism can be connected to the gear transmission assembly through a reducer. More specifically, the electric drive mechanism may be a motor, a motor with a reducer, or a servo motor, etc. Of course, in the actual production process, components such as a circuit board and a position switch are also provided in the lock body.

[0033] The driving device 3 includes a key driving mechanism 7, which includes a key insertion hole 71 for inserting a key and a key driving plate 72 driven by the key. The transmission mechanism 4 includes a transmission gear 42, and the key driving plate 72 is connected to the toggle ring 41 through the transmission gear 42 and drives the main lock tongue 2 to reciprocate linearly through the toggle ring 41. Specifically, the key driving plate is connected to the transmission gear through a key paddle 73, and the key paddle is provided with a key gear part 731 meshing with the transmission gear. Such a structure enables the product to quickly open and lock the door through a mechanical key, with a simple structure and convenient and reliable driving.

[0034] The driving device 3 includes an inner handle driving mechanism 8, which includes an inner handle 81 and a driving member 82 driven by the inner handle 81. The transmission mechanism 4 includes a transmission gear 42. The driving member 82 is connected to the toggle ring 41 through the transmission gear 42 and drives the main lock tongue 2 to reciprocate linearly through the toggle ring 41. Such a structure enables the product to quickly open and lock the door through the inner handle, has a simple structure, and is convenient and reliable to drive.

[0035] The toggle ring 41 is provided with a driving groove 413, the transmission gear 42 is provided with a transmission block 421, the transmission block 421 is arranged in the driving groove 413 and has a rotation gap with the inner wall of the driving groove 413, the lock body 1 is provided with a slanted tongue 12, a slanted tongue stopper 13 and a slanted tongue driving plate 14, the slanted tongue driving plate 14 is connected to the slanted tongue 12 through the slanted tongue stopper 13, and the transmission gear 42 is provided with a stop shoulder 422 for driving the slanted tongue driving plate 14 to move. The specific structure of the slanted tongue and the tongue contact part is the prior art and will not be described here. Specifically, the driving gear 62 is provided with a driving shaft 622 for unlocking the slanted tongue 12, the transmission gear 42 is provided with a clearance groove 423 for the driving shaft 622 to rotate, and the driving shaft 622 pushes the back of the stop shoulder 422 when the main lock tongue 2 is retracted into the lock body 1 so that the stop shoulder 422 pushes the slanted tongue driving plate 14 to unlock the slanted tongue 12. The setting of the shoulder can reliably drive the latch bolt to unlock through the latch bolt driving plate when the main bolt is retracted into the lock body, so as to facilitate the door opening. After the door is opened, the latch bolt driving plate can drive the push shoulder to rotate the transmission gear, so as to facilitate the latch bolt to be interlocked, while not affecting the interlocking of the main bolt. The setting of the drive shaft enables the latch bolt to be unlocked under the drive of the motor. Moreover, the setting of the clearance groove and the driving groove enables the electric drive mechanism to reliably drive the toggle ring to rotate and realize the reliable movement of the transmission plate. When the mechanical parts such as the mechanical key and the inner handle are in motion, the driving gear will not be driven to rotate, so as to avoid the motor reversal and damage to the parts.

[0036] Combined with Figure 2-5 For further explanation: Figure 2 The motor is retracted into the lock body, that is, it is in the door opening state; the door is closed, the tongue 15 is pressed into the lock body, the switch at the tongue is released, the motor is started, the driving gear rotates forward, the toggle ring rotates forward, and the transmission plate is linked until the pressing member 57 on the transmission plate presses the switch on the main lock tongue; the driving gear rotates in the reverse direction and stops, the key can be used to unlock the door, and the motor completes the door locking action, such as Figure 3 As shown; input the electronic key command, the drive gear rotates in the reverse direction, driving the toggle ring to rotate in the reverse direction, driving the main lock tongue to retract into the lock body, as shown Figure 4 As shown; when the main lock tongue completely enters the lock body, the pressing member on the transmission plate switches the switch under the main lock tongue. At this time, the driving gear continues to move and pushes the back of the blocking shoulder 422 through the driving shaft so that the blocking shoulder 422 pushes the oblique tongue driving plate 14 to unlock the oblique tongue 12. At this time, the door can be opened by unlocking the oblique tongue, such as Figure 5 As shown; after the door is opened, the driving gear rotates forward to the specified position, the lock is fully opened, the inclined bolt limiter resets the interlocking inclined bolt, and at the same time, the inclined bolt driving plate drives the transmission gear to rotate in the reverse direction. At this time, the transmission block on the transmission gear rotates slightly in the driving groove of the toggle ring, and the toggle ring cannot be unlocked because of the rotation gap.

[0037] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0039] Technical personnel should note that although the present invention has been described according to the above specific implementation methods, the inventive concept of the present invention is not limited to this invention, and any modification using the inventive concept will be included in the scope of protection of this patent.

Claims

1. An electronic lock, comprising a lock body (1) and a main lock tongue (2), characterized in that The lock body (1) is provided with a driving device (3), the driving device (3) is connected to the main lock tongue (2) through a transmission mechanism (4) and is used to drive the main lock tongue (2) to reciprocate, the main lock tongue (2) has a first position driven by the driving device (3) to extend out of the lock body (1) for interlocking, and a second position retracted into the lock body (1) after being unlocked, the transmission mechanism (4) comprises a toggle ring (41) and a transmission gear (42), the key paddle is provided with a key gear portion (731) meshing with the transmission gear (42), the toggle ring (41) has a function of interlocking the main lock tongue (2) when the main lock tongue (2) extends out of the lock body (1) The invention relates to a first state in which the main lock tongue (2) is unlocked by the driving device (3) and driven to move relative to the lock body (1); a second state in which the main lock tongue (2) is unlocked by the driving device (3) and driven to move relative to the lock body (1); and a third state in which the main lock tongue (2) is interlocked when the main lock tongue (2) is retracted into the lock body (1); the toggle ring (41) is provided with a toggle block (411); the main lock tongue (2) comprises a transmission plate (5); the transmission plate (5) is provided with an interlocking groove (51); the toggle block (411) is arranged in the interlocking groove (51) and is interlocked with the transmission plate (5) when the main lock tongue (2) is in the first position and the second position respectively; the interlocking groove (51) is provided with an interlocking notch (52); the The interlocking notch (52) is V-shaped, the toggle block (411) is provided with a first interlocking surface (4111), the first interlocking surface (4111) is inserted into the V-shaped interlocking notch (52) when the main lock tongue (2) is in the first position or the second position, the toggle block (411) is provided with a second interlocking surface (4112) matched with the inner wall of the interlocking groove (51) on the transmission plate (5); the interlocking groove (51) of the transmission plate is provided with an opening (53), the transmission plate (5) is provided with a transmission surface (54) that is easy to be pushed by the toggle block (411), and the toggle block (411) is located at the toggle ring (41). In the second state, the lock body (1) is inserted into the opening (53) of the interlocking groove (51) and abuts against the transmission surface (54), and the transmission plate (5) is driven to move linearly back and forth through the rotation of the toggle ring (41); the lock body (1) is provided with a mounting shaft (11), the toggle ring (41) is sleeved on the mounting shaft (11), the transmission plate (5) is provided with a guide groove (55), the mounting shaft (11) is arranged through the guide groove (55), and the transmission plate (5) is provided with an elastic member (56), and the elastic member (56) has a movement tendency to drive the toggle ring (41) to the first state or the third state through the toggle block (411).

2. An electronic lock according to claim 1, characterized in that The driving device (3) comprises an electric driving mechanism (6), the electric driving mechanism (6) comprising an electric driving element (61) and a driving gear (62), the driving gear (62) being coaxially arranged with the toggle ring (41), the driving gear (62) being provided with a driving block (621) for driving the toggle ring (41) to rotate, the toggle ring (41) being provided with a toggle groove (412), the driving block (621) being arranged in the toggle groove (412) of the toggle ring (41) and having an idling stroke with the inner wall of the toggle groove (412).

3. An electronic lock according to claim 2, characterized in that The driving device (3) comprises a key driving mechanism (7), the key driving mechanism (7) comprising a key insertion hole (71) for inserting a key and a key driving plate (72) driven by the key, the key driving plate (72) being connected to the toggle ring (41) via a transmission gear (42) and driving the main lock tongue (2) to reciprocate linearly via the toggle ring (41).

4. An electronic lock according to claim 2, characterized in that The driving device (3) comprises an inner handle driving mechanism (8), wherein the inner handle driving mechanism (8) comprises an inner handle (81) and a driving member (82) driven by the inner handle (81), wherein the driving member (82) is connected to the toggle ring (41) via a transmission gear (42) and drives the main lock tongue (2) to reciprocate linearly via the toggle ring (41).

5. An electronic lock according to claim 3 or 4, characterized in that The toggle ring (41) is provided with a driving groove (413), the transmission gear (42) is provided with a transmission block (421), the transmission block (421) is arranged in the driving groove (413) and a rotation gap is provided between the transmission block (421) and the inner wall of the driving groove (413), the lock body (1) is provided with a slanted tongue (12), a slanted tongue stopper (13) and a slanted tongue driving plate (14), the slanted tongue driving plate (14) is connected to the slanted tongue (12) via the slanted tongue stopper (13), and the transmission gear (42) is provided with a stop shoulder (422) for driving the slanted tongue driving plate (14) to move.

6. An electronic lock according to claim 5, characterized in that The driving gear (62) is provided with a driving shaft (622) for unlocking the inclined tongue (12), and the transmission gear (42) is provided with a clearance groove (423) for the driving shaft (622) to rotate. When the main lock tongue (2) is retracted into the lock body (1), the driving shaft (622) pushes the back side of the blocking shoulder (422) so that the blocking shoulder (422) pushes the inclined tongue driving plate (14) to unlock the inclined tongue (12).

Images