A silent electric lock body

Abstract

The present invention discloses a silent electric lock body, including a motor, a gear, a push rod, a circuit board, a negative electrode battery cover, a battery, a negative electrode spring battery sheet, a front cover plate, a positive electrode battery spring sheet, a first magnet, a lock body top cover and a second magnet. The motor is fixed in a motor fixing groove in the middle of the lock body bottom cover, the gear sleeve is connected to the front end of the motor central axis and meshes with the rack on the push rod; the push rod is close to the slideway of the lock body bottom cover below, the battery is fixed in the battery slot of the lock body bottom cover, the positive electrode battery spring sheet is connected to the circuit board through a wire; the negative electrode battery cover is fixed to the lock body front cover plate; the contact under the lock body front cover plate contacts the negative electrode spring battery sheet; the negative electrode spring battery sheet is fixed to the lock body bottom cover and connected to the circuit board through a wire. The electric structure of the present invention does not directly drive the lock tongue, and the noise is small. When closing the door, the lock tongue does not hit the door edge, there is no impact sound, and it is not easy to wear.

Description

Technical Field

[0001] The invention relates to a lock, in particular to a silent electric lock body. Background Art

[0002] Ordinary people cannot live without locks in their daily lives, but the electric lock bodies in the prior art have the following disadvantages: the electric structure is noisy, which affects rest at night. The mechanical loss is large and easy to wear. Every time the door is locked, the lock tongue needs to hit the door edge, which is easy to damage the door frame decoration. The door edge needs to have an impact edge, which is not easy to install for the European-style door frame with a shape, and the impact edge of the door edge affects the overall appearance of the door frame. For this reason, a silent lock has now appeared on the market, but the silent lock has the following disadvantages: it cannot rely on the motor to control the locking and unlocking status, and cannot be applied to electronic locks; it cannot adapt to intelligent functions, and cannot be connected with intelligent unlocking methods such as fingerprints and passwords; it cannot provide convenient services such as fake lock prompts, prying alarms, and unlocking records. Summary of the invention

[0003] The purpose of the present invention is to provide a silent electric lock body, the electric structure of the lock body does not directly drive the lock tongue, the noise is small, the lock tongue does not hit the door edge when closing the door, there is no impact sound, and it is not easy to wear.

[0004] In order to solve the problems existing in the prior art, the technical solution adopted by the present invention is:

[0005] A silent electric lock body comprises a lock body bottom cover, a spring, a lock tongue pin, a lock tongue cover, a lock tongue, an emergency shift fork, a shift fork, a torsion spring, a rotating shaft, a motor, a gear, a push rod, a circuit board, a negative electrode battery cover, a battery, a negative electrode spring battery sheet, a front cover plate, a positive electrode battery spring sheet, a first magnet, a lock body top cover and a second magnet. The motor is fixed in a motor fixing groove in the middle of the lock body bottom cover, the gear sleeve is connected to the front end of the motor central axis and meshes with the rack on the push rod; the push rod is closely attached to the slideway of the lock body bottom cover below and can move along the slideway; the upper end of the push rod is provided with a baffle structure, which is arranged along the lock body. When the slideway of the bottom cover of the lock body moves upward, it can push the lateral end of the fork to make it rotate. The fork is fixed on the rotating shaft and can rotate around the rotating shaft. The longitudinal end of the fork cooperates with the groove structure on the lock tongue to push the lock tongue to move backward; the fork is equipped with a spring baffle, which can cooperate with the torsion spring. When the push rod moves downward, the torsion spring can push the fork back to its position; the rotating shaft is fixed between the bottom cover of the lock body and the top cover of the lock body, used to fix the fork and make it rotate around the rotating shaft; the torsion spring is sleeved on the fork, one end of which cooperates with the spring baffle on the fork, and the other end is fixed to the triangular shape on the bottom cover of the lock body. The spring frame; the lock tongue is fixed in the horizontal slideway of the bottom cover of the lock body, and has a groove downward inside to cooperate with the shift fork, which is moved back to the lock body by the shift fork; the lock tongue has a spring groove to put the spring, and there is another groove inside the lock tongue to cooperate with the emergency shift fork; the spring is placed in the lock tongue, and the front end contacts the column on the top cover of the lock body, and the emergency shift fork is clamped between the bottom cover of the lock body and the top cover of the lock body. The shift fork below it can cooperate with the lock tongue to drive the lock tongue to retract the lock body, and the lock tongue cover is sleeved on the lock tongue, and is inserted into its interior and fixed to the lock tongue through the lock tongue pin, and a second magnetic Iron; a first magnet is installed inside the door edge, the first magnet and the second magnet attract each other, and can pull the lock tongue out; the circuit board is fixed on the bottom cover of the lock body to control the forward and reverse rotation of the motor; the battery is fixed in the battery slot of the bottom cover of the lock body, one end of which contacts the metal negative battery cover, and the other end contacts the positive battery spring sheet, and the positive battery spring sheet is connected to the circuit board through a wire; the negative battery cover is fixed to the front cover of the lock body; the contact under the front cover of the lock body contacts the negative spring battery sheet; the negative spring battery sheet is fixed to the bottom cover of the lock body and connected to the circuit board through a wire.

[0006] Furthermore, the rotating shaft is a metal cylindrical rod.

[0007] Furthermore, the shift fork is driven by an electric structure.

[0008] Furthermore, the emergency fork is twisted manually.

[0009] Furthermore, the negative electrode battery cover, the lock body front cover plate, and the negative electrode spring battery sheet are all made of metal conductive materials, which can guide the negative electrode of the battery to the circuit board.

[0010] The advantages and beneficial effects of the present invention are:

[0011] The electric structure of a silent electric lock body of the present invention does not directly drive the lock tongue, and the noise is low. When closing the door, the lock tongue does not hit the door edge, there is no impact sound, and it is not easy to wear. The door edge does not need to extend outward, does not affect the installation, and does not affect the beautiful shape of the door frame. The present invention can be matched with a smart panel and can be used for electronic locks, and can provide convenient services such as fake lock prompts, lock picking alarms, and unlocking records. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described below in conjunction with the accompanying drawings:

[0013] Figure 1 This is an overall cross-sectional view of a silent electric lock body of the present invention;

[0014] Figure 2 A top view of a silent electric lock body of the present invention;

[0015] Figure 3 This is a front view of a silent electric lock body of the present invention;

[0016] Figure 4 It is the right view of the lock tongue cover;

[0017] Figure 5 It is the front view of the lock tongue cover;

[0018] Figure 6 This is the main view of the emergency shift fork;

[0019] Figure 7 This is the front view of the shift fork;

[0020] Figure 8 This is the front view of the lock body with top cover;

[0021] Fig. 9 This is the rear view of the lock body top cover;

[0022] Fig.10 This is the front view of the door;

[0023] Fig.11 The bottom view of the lock tongue;

[0024] Fig.12 This is the rear view of the lock tongue.

[0025] In the figure: lock body bottom cover 1, spring 2, lock tongue pin 3, lock tongue cover 4, lock tongue 5, emergency fork 6, fork 7, torsion spring 8, shaft 9, motor 10, gear 11, push rod 12, circuit board 13, negative battery cover 14, battery 15, negative spring battery sheet 16, front cover 17, positive battery spring sheet 18, door edge 19, first magnet 20, lock body top cover 21, second magnet 22. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with specific embodiments, but the protection scope of the present invention is not limited by the specific embodiments, but is subject to the claims. In addition, under the premise of not violating the technical solution of the present invention, any modification or change made to the present invention that is easily realized by a person of ordinary skill in the art will fall within the scope of the claims of the present invention.

[0027] like Figure 1 , 2 As shown in Figure 3, a silent electric lock body of the present invention includes a lock body bottom cover 1, a spring 2, a lock tongue pin 3, a lock tongue cover 4, a lock tongue 5, an emergency fork 6, a fork 7, a torsion spring 8, a rotating shaft 9, a motor 10, a gear 11, a push rod 12, a circuit board 13, a negative electrode battery cover 14, a battery 15, a negative electrode spring battery sheet 16, a front cover 17, a positive electrode battery spring sheet 18, a first magnet 20, a lock body top cover 21 and a second magnet 22. The motor 10 is fixed in the motor fixing groove in the middle of the lock body bottom cover 1. The gear 11 is sleeved on the front end of the motor central axis and meshes with the rack on the push rod 12. The push rod 12 is close to the slideway of the lock body bottom cover 1 below and can move along the slideway. The upper end of the push rod 12 has a baffle structure, which can push the lateral end of the fork 7 to rotate when it moves upward along the slideway of the lock body bottom cover 1. The fork 7 is fixed on the shaft 9 and can rotate around the shaft 9. The longitudinal end of the fork 7 cooperates with the groove structure on the lock tongue 5 to push the lock tongue 5 to move backward (in the direction of the lock tongue). Figure 7 As shown, the shift fork 7 is provided with a spring baffle which can cooperate with the torsion spring 8. When the push rod 12 moves downward, the torsion spring 8 can push the shift fork 7 back to its original position. The rotating shaft 9 is a metal cylindrical rod, fixed between the lock body bottom cover 1 and the lock body top cover 21, and is used to fix the shift fork 7 and make it rotate around the rotating shaft 9. The torsion spring 8 is sleeved on the shift fork 7, one end of which cooperates with the spring baffle on the shift fork 7, and the other end is fixed to the triangular spring frame on the lock body bottom cover 1. The lock tongue 5 is fixed in the horizontal slideway of the lock body bottom cover 1, and has a groove downward inside to cooperate with the shift fork 7, and is retracted into the lock body by the shift fork 7. As shown in FIG. Fig.11 , 12 As shown, the lock tongue 5 has a spring groove to accommodate the spring 2, and the lock tongue 5 has another groove inside to cooperate with the emergency fork 6. The spring 2 is placed inside the lock tongue 5, and the front end contacts the column on the lock body top cover 21. When the lock tongue 5 is retracted into place, the spring 2 can provide elastic force to stably retract it inside the lock body, and it will not fall out of the lock body due to the swing of the lock body with the door. Figure 1 , 6 As shown in Figures 8 and 9, the emergency fork 6 is sandwiched between the lock body bottom cover 1 and the lock body top cover 21. The fork below it can cooperate with the lock tongue 5 to drive the lock tongue 5 to retract the lock body. Its function is similar to that of the fork 7. The fork 7 is driven by an electric structure while the emergency fork 6 needs to be twisted manually. Figure 4 , 5As shown, the lock tongue cover 4 is sleeved on the lock tongue 5, and is fixed to the lock tongue 5 by inserting the lock tongue pin 3 therein, and a magnet 22 is installed therein. Fig.10 As shown, a magnet 20 is installed inside the door edge 19, and the magnet 20 and the magnet 22 attract each other, which can pull the lock tongue 5 out. The circuit board 13 is fixed on the bottom cover 1 of the lock body to control the forward and reverse rotation of the motor 10. The battery 15 is fixed in the battery slot of the bottom cover 1 of the lock body, one end of which contacts the metal negative battery cover 14, and the other end contacts the positive battery spring sheet 18, and the positive battery spring sheet 18 is connected to the circuit board through a wire. The negative battery cover 14 is fixed to the front cover 17 of the lock body. The contact under the front cover 17 of the lock body contacts the negative spring battery sheet 16. The negative spring battery sheet 16 is fixed to the bottom cover 1 of the lock body and is connected to the circuit board 13 through a wire. The negative battery cover 14, the front cover 17 of the lock body, and the negative spring battery sheet 16 are all made of metal conductive materials, which can guide the negative electrode of the battery to the circuit board 13.

[0028] The mechanical movement principle of the present invention is as follows:

[0029] The door edge 19 is fixed to the door frame, and the silent electric lock body of the present invention is fixed inside the door. After the door is closed, the magnet 22 inside the lock tongue cover 4 is attracted by the magnet 20 inside the door edge 19, driving the lock tongue 5 to move along the slideway of the lock body bottom cover 1, so that the lock body cover 4 extends out of the lock body, completing the locking action.

[0030] When unlocking, the circuit board 13 controls the motor 10 to drive the push rod 12 to move upward along the slideway on the bottom cover 1 of the lock body through the gear 11, and the push rod 12 pushes the fork 7 to rotate clockwise, thereby driving the lock tongue 5 to slide along the slideway on the bottom cover 1 of the lock body toward the inside of the lock body, thereby driving the lock tongue cover 4 to retract the lock body. When the circuit board 13 detects that the door has left the suction range of the magnet 20 (that is, the door has been opened manually), the circuit board 13 controls the motor 10 to drive the push rod 12 to move downward along the slideway on the bottom cover 1 of the lock body through the gear 11, so that the push rod 12 loses the thrust on the fork 9. The fork 9 rotates counterclockwise by the force of the torsion spring 9 until it is reset, thereby losing the thrust on the lock tongue 5. The lock tongue 5 is thrust by the spring 2 and is stably stored in the lock body, and will not fall out of the lock body due to the centrifugal force when the door is opened and closed. At this point, the overall mechanical structure of the lock body is reset until the door is locked the next time it is closed.

[0031] During emergency opening, the emergency fork 6 is twisted manually using a screwdriver or other tool. When the emergency fork 6 rotates, the lock tongue 5 can be pushed along the slideway on the lock body shell 1 to slide in the direction of being retracted into the lock body, thereby driving the lock tongue cover 4 to retract the lock body, thereby completing the emergency unlocking task.

[0032] The above is a preferred embodiment of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described above, and these modifications or additions should also be regarded as within the protection scope of the present invention.

Claims

1. A silent electric lock body, characterized by: The invention comprises a lock body bottom cover (1), a spring (2), a lock tongue pin (3), a lock tongue cover (4), a lock tongue (5), an emergency shift fork (6), a shift fork (7), a torsion spring (8), a rotating shaft (9), a motor (10), a gear (11), a push rod (12), a circuit board (13), a negative electrode battery cover (14), a battery (15), a negative electrode spring battery sheet (16), a front cover (17), a positive electrode battery spring sheet (18), a first magnet (20), a lock body top cover (21) and a second magnet (22), wherein the motor (10) is fixed in a motor fixing groove in the middle of the lock body bottom cover (1), the gear (11) is sleeved on the front end of the motor middle shaft and meshes with the rack on the push rod (12); a sliding part below the push rod (12) is closely attached to the lock body bottom cover (1). The push rod (12) has a baffle structure at its upper end, and when the push rod (12) moves upward along the slideway of the lock body bottom cover (1), the push rod (12) can push the lateral end of the shift fork (7) to rotate. The shift fork (7) is fixed on the rotating shaft (9) and can rotate around the rotating shaft (9). The longitudinal end of the shift fork (7) cooperates with the groove structure on the lock tongue (5) to push the lock tongue (5) to move backward. The shift fork (7) has a spring baffle, which can cooperate with the torsion spring (8). When the push rod (12) moves downward, the torsion spring (8) can push the shift fork (7) back to its original position. The rotating shaft (9) is fixed between the lock body bottom cover (1) and the lock body top cover (21), and is used to fix the shift fork (7) and make it rotate around the rotating shaft (9). The torsion spring (8) is sleeved on the shift fork (7), and one end of the torsion spring (8) is connected to the shift fork (7). The spring baffle on the lock body (21) cooperates with the other end fixed to the triangular spring frame on the lock body bottom cover (1); the lock tongue (5) is fixed in the horizontal slideway of the lock body bottom cover (1), and has a groove downward inside to cooperate with the fork (7), and is moved by the fork (7) to retract into the lock body; the lock tongue (5) has a spring groove to receive the spring (2), and the lock tongue (5) has another groove inside to cooperate with the emergency fork (6); the spring (2) is placed in the lock tongue (5), and the front end contacts the column on the lock body top cover (21), and the emergency fork (6) is clamped between the lock body bottom cover (1) and the lock body top cover (21), and the fork below it can cooperate with the lock tongue (5) to drive the lock tongue (5) to retract into the lock body, and the lock tongue cover (4) is sleeved on the lock tongue (5), and through the lock tongue pin (3 ) is inserted into the interior thereof and fixed to the lock tongue (5), wherein a second magnet (22) is installed in the interior thereof; a first magnet (20) is installed in the interior of the door edge (19), and the first magnet (20) and the second magnet (22) attract each other, and can pull the lock tongue (5) out; a circuit board (13) is fixed on the bottom cover (1) of the lock body and is used to control the forward and reverse rotation of the motor (10); a battery (15) is fixed in the battery slot of the bottom cover (1) of the lock body, and one end of the battery (15) contacts the metal negative electrode battery cover (14), and the other end contacts the positive electrode battery spring sheet (18), and the positive electrode battery spring sheet (18) is connected to the circuit board through a wire; the negative electrode battery cover (14) is fixed to the front cover (17) of the lock body; and a contact point below the front cover (17) of the lock body contacts the negative electrode spring battery sheet (16);The negative electrode spring battery sheet (16) is fixed to the lock body bottom cover (1) and connected to the circuit board (13) via a wire. ; 2. A silent electric lock body according to claim 1, characterized in that: The rotating shaft (9) is a metal cylindrical rod.

3. A silent electric lock body according to claim 1, characterized in that: The shift fork (7) is driven by an electric structure.

4. The silent electric lock according to claim 1, characterized in that: The emergency fork (6) is manually twisted.

5. The silent electric lock according to claim 1, characterized in that: The negative electrode battery cover (14), the lock body front cover plate (17), and the negative electrode spring battery sheet (16) are all made of metal conductive materials and can guide the negative electrode of the battery to the circuit board (13).

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