An electric lock

Abstract

The present invention discloses an electric lock, which includes a lock body, a motor assembly, a driving gear, a main tongue plate, a main lock tongue, a driving plate, a first driven gear, a key lock, a rotating seat and a driving tooth arranged on the rotating seat. A driven swing groove is arranged on the main tongue plate, an arc-shaped driving groove and a first driving rod are arranged on the driving plate, and a second driving rod is arranged on the first driven gear. The motor assembly and the key lock can respectively drive the driving plate without excessive interference, thereby driving the main tongue plate to move back and forth, and further driving the main lock tongue to unlock and lock. The structure is relatively simple, thus reducing the production cost.

Description

Technical Field

[0001] The present invention relates to the field of locks, and in particular to an electric lock. Background Art

[0002] Most current electric locks directly drive the main lock tongue to move through a motor, and at the same time use another set of structures to unlock the main lock tongue with a key. The two sets of systems have little interaction in structure, resulting in a more complex structure of the lock body and a larger number of required parts. Summary of the Invention

[0003] To solve the above problems, the purpose of the present invention is to provide an electric lock with a simple structure and a common part of the structure between the electric part and the key part.

[0004] The technical solution adopted by the present invention to solve the problem is: an electric lock, comprising:

[0005] A lock body, in which a motor assembly is provided, a driving gear is provided on the motor assembly, and a main tongue hole is provided on the side of the lock body;

[0006] A main tongue plate, which is arranged in the lock body and can move back and forth in the lock body. A main lock tongue that can extend out of the lock body along the main tongue hole is provided at the front end of the main tongue plate, and a driven swing groove is obliquely arranged on the main tongue plate in the up and down direction;

[0007] A driving plate, the middle part of which is pivotally connected in the lock body. A first driving rod located in the driven swing groove is provided at the front end of the driving plate, and an arc-shaped driving groove is provided at the rear end of the driving plate;

[0008] A first driven gear, which meshes with the driving gear. A second driving rod inserted into the arc-shaped driving groove is eccentrically arranged on the surface of the first driven gear, and the first driven gear and the arc-shaped driving groove are coaxially arranged;

[0009] A key lock part, which is arranged in the lock body. A rotating seat is provided on the key lock part, and a key hole is provided on the key lock part. When the key lock part is unlocked with a key, the rotating seat can be driven to rotate. A driving tooth is provided on the circumference of the rotating seat, and a driven tooth meshing with the driving tooth is provided on the edge of the driving plate.

[0010] As a further improvement of the above technical solution, a cooperating tongue hole is provided on the side of the lock body, a cooperating lock tongue is provided in the lock body, the cooperating lock tongue is used to extend out of the lock body along the cooperating tongue hole or retract into the lock body, and a first return spring is provided at the rear end of the cooperating lock tongue.

[0011] As a further improvement of the above technical solution, the cooperative locking tongue includes a mounting seat and a tongue body pivotally connected to the mounting seat with a triangular head. The first return spring is arranged at the rear side of the mounting seat. A second return spring is arranged between the tongue body and the mounting seat. A limiting groove is arranged on the side surface of the tongue body. A limiting platform is arranged in the lock body. A limiting strip for movably engaging in the limiting groove is arranged on the side surface of the limiting platform. A swing seat is arranged in the lock body. The front end of the swing seat is inserted into the limiting platform to drive the limiting platform to move relative to the tongue body. A third return spring is arranged on the swing seat. A driving head is arranged on the swing seat. A second driven gear is meshed with the driving gear. A push rod for abutting against the driving head is eccentrically arranged on the surface of the second driven gear.

[0012] As a further improvement of the above technical solution, a push plate is arranged in the lock body. The front end of the push plate is located at the side of the rotating seat. The rear end of the push plate is located at the end of the driving head. A push head for driving the push plate to move is arranged on the rotating seat.

[0013] As a further improvement of the above technical solution, an auxiliary hole is arranged on the side surface of the lock body. An auxiliary tongue is arranged in the lock body. The auxiliary tongue can extend out of the lock body along the auxiliary hole or retract into the lock body. A pushing inclined surface is arranged on the surface of the auxiliary tongue. A pressing member is arranged at the rear end of the auxiliary tongue. A fourth return spring is arranged at the rear end of the auxiliary tongue. A first sensor is arranged in the lock body at the end of the moving path of the pressing member. A second sensor is arranged in the lock body on the moving path of the cooperative locking tongue. The first sensor and the second sensor are electrically connected to the motor assembly.

[0014] As a further improvement of the above technical solution, a reset sensing member is arranged on the first driven gear or the second driven gear. A reset sensor matched with the reset sensing member is arranged in the lock body.

[0015] As a further improvement of the above technical solution, a third driven gear is meshed with the driving gear. A reset sensing member is arranged on the third driven gear. A reset sensor matched with the reset sensing member is arranged in the lock body.

[0016] As a further improvement of the above technical solution, a first end position sensor and a second end position sensor are arranged in the lock body on the moving path of the main tongue plate. A position sensing member matched with the first end position sensor and the second end position sensor is arranged on the main tongue plate.

[0017] The beneficial effects of the present invention are as follows: When in use, this electric lock needs to open a lock hole on the door frame. The motor assembly and the key lock part can drive the driving plate respectively without excessive interference, thereby driving the main tongue plate to move back and forth, and then driving the main locking tongue to unlock and lock. The structure is relatively simple, thus reducing the production cost. Brief Description of the Drawings

[0018] The present invention will be further explained below in conjunction with the brief description of the drawings and the specific embodiments.

[0019] Figure 1 It is a schematic structural diagram of a preferred embodiment of the present invention;

[0020] Figure 2 It is a schematic internal structure diagram when the main lock tongue extends to the outside of the lock body;

[0021] Figure 3 It is an exploded view of the present invention;

[0022] Figure 4 It is a schematic structural diagram when unlocking the main lock tongue by using the motor assembly;

[0023] Figure 5 It is a schematic structural diagram when unlocking the main lock tongue by using a key;

[0024] Figure 6 It is a schematic diagram of the cooperation of the main tongue plate, the driving plate, the first driven gear and the rotating seat;

[0025] Figure 7 It is the first relative position combination of the main tongue plate, the driving plate, the first driven gear and the rotating seat;

[0026] Figure 8 It is the second relative position combination of the main tongue plate, the driving, the first driven gear and the rotating seat;

[0027] Figure 9 It is the third relative position combination of the main tongue plate, the driving plate, the first driven gear and the rotating seat;

[0028] Figure 10 It is the fourth relative position combination of the main tongue plate, the driving plate, the first driven gear and the rotating seat;

[0029] Figure 11 It is a schematic structural diagram of the cooperation of the second driven gear and the swing seat. Specific Embodiments

[0030] This part will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the drawings. The function of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it should not be construed as a limitation on the protection scope of the present invention.

[0031] In the description of the present invention, it should be understood that for the orientation descriptions, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., it is based on the orientation or positional relationship shown in the drawings. It is 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 operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0032] In the description of the present invention, the meaning of "several" is one or more, the meaning of "multiple" is two or more. Understandings such as "greater than", "less than", "exceeding", etc. do not include the recited number, and understandings such as "above", "below", "within", etc. include the recited number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features. In the description of the present invention, unless otherwise clearly defined, words such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0033] Refer to Figures 1 to 11 , an electric lock, comprising:

[0034] A lock body 10, a motor assembly 20 is arranged inside the lock body 10, a driving gear 21 is arranged on the motor assembly 20, and a main tongue hole is arranged on the side of the lock body 10;

[0035] A main tongue plate 50, the main tongue plate 50 is arranged inside the lock body 10 and can move back and forth inside the lock body 10. A main lock tongue 51 that can extend out of the lock body 10 along the main tongue hole is arranged at the front end of the main tongue plate 50, and a driven swing groove 52 is obliquely arranged on the main tongue plate 50 in the up and down direction;

[0036] A driving plate 40, the middle of the driving plate 40 is pivotally connected inside the lock body 10. A first driving rod 43 located in the driven swing groove 52 is arranged at the front end of the driving plate 40, and an arc-shaped driving groove 41 is arranged at the rear end of the driving plate 40;

[0037] A first driven gear 30, the first driven gear 30 meshes with the driving gear 21. A second driving rod 31 inserted into the arc-shaped driving groove 41 is eccentrically arranged on the surface of the first driven gear 30, and the first driven gear 30 and the arc-shaped driving groove 41 are coaxially arranged;

[0038] The key lock 60 is disposed within the lock body 10. A rotating seat 61 is provided on the key lock 60. A keyhole is provided on the key lock 60. When the key lock 60 is unlocked by a key, the rotating seat 61 can be driven to rotate. A driving tooth 62 is provided on the circumferential side of the rotating seat 61. A driven tooth 42 meshing with the driving tooth 62 is provided on the edge of the driving plate 40.

[0039] During use, a lock hole needs to be opened on the door frame for this electric lock. Figure 7 It is a schematic diagram of the relative position when the main lock tongue 51 extends out of the lock body 10 to lock the door. When the main lock tongue 51 is unlocked by the motor assembly 20, the driving gear 21 on the motor assembly 20 rotates, thereby driving the first driven gear 30 to rotate. Then, the driving plate 40 is driven to swing through the second driving rod 31. During the swinging process of the driving plate 40, the position of the first driving rod 43 changes in the height direction. Also, since the first driving rod 43 is located within the driven swinging slot 52, the first driving rod 43 can only move within the driven swinging slot 52, causing the main tongue plate 50 to move backward under the action of the first driving rod 43 to cooperate with the position of the first driving rod 43, thereby completing the unlocking of the main lock tongue 51. At this time, the relative positions of the main tongue plate 50, the driving plate 40, the first driven gear 30, and the rotating seat 61 are as Figure 8 shown. After the main lock tongue 51 is unlocked, the motor assembly 20 drives the driving gear 21 to reset. At this time, the first driven gear 30 also resets, causing the second driving rod 31 to move along the arc-shaped driving slot 41 to the end of the arc-shaped driving slot 41. However, at this time, the second driving rod 31 does not drive the driving plate 40 to swing, and the driving plate 40 and the main tongue plate 50 do not reset, forming Figure 9 the schematic diagram of the relative position shown. After a period of time, or after the lock signal is input, the motor assembly 20 drives the driving gear 21 to reverse, driving the first driven gear 30 to rotate in the reverse direction. Then, the driving plate 40 is driven to move backward and reset, thereby driving the main tongue plate 50 to move and causing the main lock tongue 51 to extend out of the lock body 10 to complete the locking. At this time, the relative positions of the main tongue plate 50, the driving plate 40, the first driven gear 30, and the rotating seat 61 are as Figure 10 shown. After the main lock tongue 51 completely extends out of the lock body 10, the motor assembly 20 continues to reset, causing the driving gear 21 and the first driven gear 30 to return to their original positions. At this time, the second driving rod 31 moves along the idle stroke of the arc-shaped driving slot 41 to the front end of the arc-shaped driving slot 41, that is Figure 7The relative positions shown. During the rotation of the drive plate 40 driven by the motor assembly 20, the rotating seat 61 on the key lock 60 will move synchronously. However, when unlocking with a key, the key drives the rotating seat 61 to rotate, which in turn drives the drive plate 40 to rotate. However, due to the arc-shaped drive groove 41 provided on the drive plate 40, the drive plate 40 has a certain degree of freedom of movement. When the rotating seat 61 drives the drive plate 40 to rotate, the main tongue plate 50 drives the main lock tongue 51 to move to unlock and lock, but at this time the second drive rod 31 does not move and remains in the original position, that is, only in Figure 7 and Figure 10 The two states move back and forth. Through this solution, the motor assembly 20 and the key lock 60 can drive the drive plate 40 respectively and will not interfere excessively. The structure is relatively simple, thus reducing the production cost.

[0040] Further optimization, preferably, a cooperating tongue hole is provided on the side of the lock body 10, a cooperating lock tongue 70 is provided in the lock body 10, the cooperating lock tongue 70 is used to extend out of the lock body 10 along the cooperating tongue hole or retract into the lock body 10, and a first return spring 76 is provided at the rear end of the cooperating lock tongue 70.

[0041] Further optimization, preferably, the cooperating lock tongue 70 includes a mounting seat 72 and a tongue body 71 pivotally connected to the mounting seat 72 and having a triangular head. The first return spring 76 is provided at the rear side of the mounting seat 72. A second return spring is provided between the tongue body 71 and the mounting seat 72. A limiting groove is provided on the side of the tongue body 71. A limiting platform 74 is provided in the lock body 10. A limiting strip 741 for movably engaging in the limiting groove is provided on the side of the limiting platform 74. A swinging seat 73 is provided in the lock body 10. The front end of the swinging seat 73 is inserted into the limiting platform 74 for driving the limiting platform 74 to move relative to the tongue body 71. A third return spring is provided on the swinging seat 73. A driving head 731 is provided on the swinging seat 73. A second driven gear 22 is engaged with the driving gear 21. A push rod 221 for abutting against the driving head 731 is eccentrically provided on the surface of the second driven gear 22.

[0042] When the door is opened, the cooperative locking tongue 70 extends out of the door body. When the door is normally closed, the cooperative locking tongue 70 abuts against the door frame, and thus is pressed down under the action of the door frame. At this time, the moving path of the tongue body 71 is the same as the limiting path of the limiting strip 741, so that it can be smoothly retracted into the lock body 10. However, when the door is opened, the surface of the locking tongue abuts against the inner wall of the keyhole, and the cooperative locking tongue 70 cannot be pressed back into the lock body 10. At this time, if the door needs to be opened, it is necessary to drive the limiting platform 74 to move through the swing seat 73, so that the limiting strip 741 releases the limiting effect on the limiting groove, so that the tongue body 71 can swing relative to the mounting seat 72, and then the tongue body 71 is inclined with respect to the inner wall of the keyhole, so as to press the entire cooperative locking tongue 70 back into the lock body 10. In this structure, through the meshing of the second driven gear 22 and the driving gear 21, when the main locking tongue 51 is retracted into the lock body 10, the second driven gear 22 rotates synchronously, so that the push rod 221 pushes the swing seat 73 to swing, and then drives the limiting platform 74 to move, so as to release the restriction on the cooperative locking tongue 70, and the door can be normally opened.

[0043] For further optimization, it is preferably that a push plate 90 is arranged in the lock body 10. The front end of the push plate 90 is located on the side of the rotating seat 61, and the rear end of the push plate 90 is located at the end of the driving head 731. A push head for driving the push plate 90 to move is arranged on the rotating seat 61, so that when the key lock part 60 is independently driven by the key, and the main locking tongue 51 is driven to unlock, the cooperative locking tongue 70 can also be smoothly unlocked.

[0044] For further optimization, it is preferably that an auxiliary hole is arranged on the side of the lock body 10, and an auxiliary tongue 80 is arranged in the lock body 10. The auxiliary tongue 80 can extend out of the lock body 10 or retract into the lock body 10 along the auxiliary hole. A pushing inclined surface is arranged on the surface of the auxiliary tongue 80. A pressing part 81 is arranged at the rear end of the auxiliary tongue 80. A fourth return spring is arranged at the rear end of the auxiliary tongue 80. A first inductor 82 located at the end of the moving path of the pressing part 81 is arranged in the lock body 10. A second inductor 75 located on the moving path of the cooperative locking tongue 70 is arranged in the lock body 10.

[0045] The state of the door can be better determined through the auxiliary tongue 80, so as to determine whether to push the main locking tongue 51 out of the outer side of the lock body 10. After all, when the main locking tongue 51 is driven to move by the motor assembly 20 when the door is not properly closed, the main locking tongue 51 cannot extend out of the outer side of the lock body 10 and is likely to damage the motor assembly 20. When the door is closed, the auxiliary tongue 80 will be pressed back into the lock body 10 under the action of the door frame. During use, when the auxiliary tongue 80 is retracted into the lock body 10 and at the same time the cooperating locking tongue 70 extends out of the outer side of the lock body 10, this means that the door has been completely closed, so a signal can be given to the motor assembly 20 to drive the main locking tongue 51 to extend, thereby locking the door. And when both the auxiliary tongue 80 and the cooperating locking tongue 70 extend out of the outer side of the lock body 10, it means that the door is in the open state at this time, and at this time the main locking tongue 51 should be retracted into the lock body 10 and not extend out of the outer side of the lock body 10.

[0046] In this solution, it is preferred that the first sensor 82 and the second sensor 75 are momentary switches.

[0047] Further optimized, it is preferred that a reset sensing member 92 is provided on the first driven gear 30 or the second driven gear 22, and a reset sensor 91 cooperating with the reset sensing member 92 is provided in the lock body 10. In another way, a third driven gear 42 can also be meshed with the driving gear 21, a reset sensing member 92 is provided on the third driven gear 42, and a reset sensor 91 cooperating with the reset sensing member 92 is provided in the lock body 10, so as to control the timing of the motor assembly 20 driving the driving gear 21 to reset. The first driven gear 30 and the second driven gear 22 can both be directly meshed with the driving gear 21 or indirectly meshed through an intermediate gear.

[0048] Further optimized, it is preferred that a first end position sensor 54 and a second end position sensor 53 are provided in the lock body 10 on the moving path of the main tongue plate 50, and a position sensing member 55 cooperating with the first end position sensor 54 and the second end position sensor 53 is provided on the main tongue plate 50, so as to facilitate judging the position of the main locking tongue 51. The first end position sensor 54, the second end position sensor 53 and the reset sensor 91 can be photoelectric sensors, while the position sensing member 55 and the reset sensing member 92 are light-shielding members that block the photoelectric sensors. In other embodiments, the first end position sensor 54, the second end position sensor 53 and the reset sensor 91 can also be in the form of momentary switches, and at the same time the first sensor 82 and the second sensor 75 can also be selected in the form of photoelectric sensors.

[0049] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made by using the description and drawings of the present invention under the inventive concept of the present invention, or directly or indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. An electric lock, characterized in that, Comprising: A lock body (10), within which a motor assembly (20) is provided. A driving gear (21) is arranged on the motor assembly (20), and a main tongue hole is provided on the side of the lock body (10). A main tongue plate (50), which is arranged within the lock body (10) and can move back and forth within the lock body (10). A main lock tongue (51) that can extend out of the lock body (10) along the main tongue hole is provided at the front end of the main tongue plate (50). A driven swing groove (52) is obliquely arranged in the vertical direction on the main tongue plate (50). A driving plate (40), the middle of which is pivotally connected within the lock body (10). A first driving rod (43) located within the driven swing groove (52) is provided at the front end of the driving plate (40), and an arc-shaped driving groove (41) is provided at the rear end of the driving plate (40). A first driven gear (30), which meshes with the driving gear (21). A second driving rod (31) inserted into the arc-shaped driving groove (41) is eccentrically arranged on the surface of the first driven gear (30), and the first driven gear (30) and the arc-shaped driving groove (41) are coaxially arranged. A key lock member (60), which is arranged within the lock body (10). A rotating seat (61) is provided on the key lock member (60). A key hole is provided on the key lock member (60). When the key lock member (60) is unlocked by a key, the rotating seat (61) can be driven to rotate. Driving teeth (62) are provided on the periphery of the rotating seat (61), and driven teeth (42) meshing with the driving teeth (62) are provided on the edge of the driving plate (40).

2. An electric lock according to claim 1, wherein: A secondary tongue hole is provided on the side of the lock body (10), and a secondary lock tongue (70) is arranged within the lock body (10). The secondary lock tongue (70) is used to extend out of the lock body (10) along the secondary tongue hole or retract into the lock body (10), and a first return spring (76) is provided at the rear end of the secondary lock tongue (70).

3. An electric lock according to claim 2, wherein: The cooperating locking tongue (70) includes a mounting base (72) and a tongue body (71) pivotally connected to the mounting base (72) and having a triangular head. The first return spring (76) is disposed at the rear side of the mounting base (72). A second return spring is disposed between the tongue body (71) and the mounting base (72). A limiting groove is provided on the side surface of the tongue body (71). A limiting platform (74) is provided in the lock body (10). A limiting strip (741) for movably engaging in the limiting groove is provided on the side surface of the limiting platform (74). A swinging seat (73) is provided in the lock body (10). The front end of the swinging seat (73) is inserted into the limiting platform (74) for driving the limiting platform (74) to move relative to the tongue body (71). A third return spring is provided on the swinging seat (73). A driving head (731) is provided on the swinging seat (73). A second driven gear (22) is engaged with the driving gear (21). A push rod (221) for abutting against the driving head (731) is eccentrically provided on the surface of the second driven gear (22).

4. An electric lock according to claim 3, wherein: A push plate (90) is provided in the lock body (10). The front end of the push plate (90) is located at the side of the rotating seat (61). The rear end of the push plate (90) is located at the end of the driving head (731). A pushing head for driving the push plate (90) to move is provided on the rotating seat (61).

5. An electric lock according to claim 2 or 3 or 4, wherein: An auxiliary hole is provided on the side surface of the lock body (10). An auxiliary tongue (80) is provided in the lock body (10). The auxiliary tongue (80) can extend out of the lock body (10) along the auxiliary hole or retract into the lock body (10). A pushing inclined surface is provided on the surface of the auxiliary tongue (80). A pressing member (81) is provided at the rear end of the auxiliary tongue (80). A fourth return spring (83) is provided at the rear end of the auxiliary tongue (80). A first inductor (82) is provided in the lock body (10) at the end of the moving path of the pressing member (81). A second inductor (75) is provided in the lock body (10) on the moving path of the cooperating locking tongue (70). The first inductor (82) and the second inductor (75) are electrically connected to the motor assembly (20).

6. An electric lock according to claim 3, wherein: A reset sensing member (92) is provided on the first driven gear (30) or the second driven gear (22). A reset inductor (91) cooperating with the reset sensing member (92) is provided in the lock body (10).

7. An electric lock according to claim 1, wherein: A third driven gear (42) is engaged with the driving gear (21). A reset sensing member (92) is provided on the third driven gear (42). A reset inductor (91) cooperating with the reset sensing member (92) is provided in the lock body (10).

8. An electric lock according to claim 1, wherein: A first-end position sensor (54) and a terminal-end position sensor (53) are arranged within the lock body (10) at positions on the moving path of the main tongue plate (50), and a position sensing member (55) cooperating with the first-end position sensor (54) and the terminal-end position sensor (53) is arranged on the main tongue plate (50).

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