Electric bolt lock for safe

Abstract

The present invention relates to an electric bolt lock for safes with reasonable structure and lower cost. The electric bolt lock for safes includes a housing, a motor and a bolt head, and is characterized in that: a bolt head slide groove is provided in the housing, the bolt head can be slidably arranged in the bolt head slide groove, a toggle slide groove parallel to the bolt head slide groove is provided in the housing, a toggle piece can be slidably arranged in the toggle slide groove, the toggle piece is transmission-connected with the motor, the toggle piece and the bolt head are transmission-connected through a transmission spring, a limiting slide groove perpendicular to the toggle slide groove is provided in the housing, and a limiting piece can be slidably arranged in the limiting slide groove. The electric bolt lock for safes realizes the locking cylinder and tongue by driving the bolt head through the motor, and also has an emergency unlocking function.

Description

Technical Field

[0001] The invention relates to a lock, in particular to an electric lock bolt used on a safe. Background Art

[0002] At present, the fingerprint lock or password lock of general safes all use electromagnetic valves as lock bolts. After the lock bolt is locked to the lock tongue, the door of the safe cannot be opened. However, the electromagnetic valve is easy to lose its function under strong vibration and cannot play the role of locking the lock tongue. Some thieves use this safety defect to steal. Therefore, the safety factor of safes using electromagnetic valves is relatively low. In order to solve the problems existing in the prior art, the applicant provides a shockproof safe bolt, which is driven by a motor to achieve bolting. The motor structure is stable and not easily affected by vibration. Even if the motor fails, emergency unlocking can be achieved. However, the structure of this shockproof safe bolt is complex and the manufacturing cost is high. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention innovatively provides an electric lock bolt for a safe with a reasonable structure and lower cost.

[0004] This electric lock of a safe includes a shell, a motor and a bolt head, and is characterized in that: a bolt head slide groove is provided in the shell, and the bolt head can be slidably arranged in the bolt head slide groove, a toggle slide groove parallel to the bolt head slide groove is provided in the shell, a toggle piece can be slidably arranged in the toggle slide groove, the toggle piece is transmission connected with the motor, and the toggle piece and the bolt head are transmission connected by a transmission spring, a limiting slide groove perpendicular to the toggle slide groove is provided in the shell, a limiting piece can be slidably arranged in the limiting slide groove, the limiting piece has a limiting part that limits the movement of the bolt head, the limiting piece has a first inclined surface, the toggle piece has a pushing inclined surface that acts on the first inclined surface to drive the limiting piece to move, and a reset spring is provided at the rear end of the limiting piece to drive the limiting piece to reset.

[0005] An emergency unlocking member is also provided in the toggle slide groove, the limiting member has a second inclined surface, the emergency unlocking member has a pushing portion that acts on the second inclined surface to drive the limiting member to move, and the pushing portion of the emergency unlocking member can push the bolt head to move.

[0006] The motor is connected to the toggle member through a transmission gear. The toggle member has a tooth surface, and the transmission gear meshes with the tooth surface of the toggle member.

[0007] The inner end of the bolt head has a connecting column, and the connecting column passes through the extension part of the toggle member. The end of the connecting column has a supporting end. There are two transmission springs, and both transmission springs are sleeved on the connecting column, one of which is arranged between the extension part of the toggle member and the bolt head, and the other is arranged between the extension part of the toggle member and the supporting end of the connecting column.

[0008] According to the electric lock bolt of a safe provided by the present invention, a motor drives a bolt head to move so as to realize a lock cylinder and a lock tongue, and at the same time, it also has an emergency unlocking function. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of the present invention;

[0010] Figure 2 is a schematic diagram of the structure of the shell;

[0011] Figure 3 It is a schematic diagram of the action of the toggle member and the limiting member;

[0012] Figure 4 It is a schematic diagram of the function of the limiting member and the bolt head;

[0013] Figure 5 It is a schematic diagram of the functions of the emergency unlocking part and the limiting part;

[0014] Figure 6 This is a schematic diagram of the emergency unlocking part and the bolt head. DETAILED DESCRIPTION

[0015] like Figure 1 As shown, the electric bolt lock of the safe comprises a housing 1, a motor 3 and a bolt head 2. The motor 3 and the bolt head 2 are both installed in the housing 1.

[0016] like Figure 2 and Figure 1 As shown, a bolt head slot 10 is provided in the housing 1, and the bolt head 2 can be slidably arranged in the bolt head slot 10, that is, the bolt head 2 can slide in and out of the housing 1 in the bolt head slot 10. When the bolt head 2 comes out of the housing 1, it can restrict the lock tongue, so that the lock tongue locks the door; when the bolt head 2 retracts into the housing 1, the restriction on the lock tongue is released, so that the lock tongue is no longer locked when the door handle is turned. In order to move the bolt head 2, as shown in FIG. Figure 2 As shown, a toggle slot 11 parallel to the bolt head slot 10 is provided in the housing 1, and a toggle member 4 is slidably provided in the toggle slot 11. The toggle member 4 is transmission-connected to the motor 3, and the toggle member 4 and the bolt head 2 are transmission-connected via the transmission spring 7; the movement of the toggle member 4 driven by the motor 3 can drive the bolt head 2 to move via the transmission spring 7. Of course, when the bolt head 2 extends out of the housing 1, it needs to be restricted. For this purpose, a restriction slot 12 perpendicular to the toggle slot 11 is provided in the housing 1, and a restriction member 5 is slidably provided in the restriction slot 12. The restriction member 5 has a restriction portion 50 that restricts the movement of the bolt head 2, and the restriction member 5 has a first inclined surface 51, as shown in FIG. Figure 3As shown, the toggle member 4 has a push inclined surface 40 that acts on the first inclined surface 51 to drive the limiting member 5 to move; when the toggle member 4 moves downward, the push inclined surface 40 of the toggle member 4 acts on the first inclined surface 51 of the limiting member 5, so that the limiting member 5 moves to the left, so that the limiting portion 50 of the limiting member 5 no longer limits the bolt head 2, and the bolt head 2 retracts under the tension of the transmission spring 7, so that the bolt head 2 enters the housing 1. The transmission spring 7 is used to realize the transmission connection between the toggle member 4 and the bolt head 2 because the toggle member 4 needs to move a certain distance to push the limiting member 5 to one side to release the restriction, and the process of the toggle member 4 moving can cause the transmission spring 7 to deform and generate tension. When the limiting member 5 completes the release of the restriction, the transmission spring 7 can immediately pull the bolt head 2 to retract. In order to reset the limiting member 5, a reset spring 6 is provided at the rear end of the limiting member 5 to drive the limiting member 5 to reset.

[0017] The working principle of this safe electric lock is as follows: when the safe is in the locked state, Figure 4 As shown, the limiting portion 50 of the limiting member 5 limits the bolt head 2, so that the bolt head 2 cannot move, thereby locking the lock tongue. When unlocking is required, the fingerprint or password matches, and the motor 4 drives the toggle member 4 to move, as shown in FIG. Figure 3 As shown, the toggle member 4 acts on the first inclined surface 51 of the limiting member 5 through its pushing inclined surface 40, so that the limiting member 5 moves to the left, so that the limiting portion 50 of the limiting member 5 no longer limits the bolt head 2, and at the same time, the toggle member 4 pulls the bolt head 2 downward through the transmission spring 7. When the limiting portion 5 of the limiting member 5 is completely freed from restriction, the bolt head 2 enters the housing 1, thus achieving unlocking. When it is necessary to re-lock, the motor 3 is reversed, the toggle member 4 moves back, the toggle member 4 drives the bolt head 2 to move outward, and the limiting member 5 is reset under the action of the reset spring 6, and the bolt head 2 is re-restricted, so that the bolt head 2 re-locks the lock tongue.

[0018] The motor 3 or the circuit may fail. In order to achieve emergency unlocking in this case, an emergency unlocking member 9 is provided in the toggle slide 11. Figure 5 As shown, the restricting member 5 has a second inclined surface 52, and the emergency unlocking member 9 has a pushing portion 90 that acts on the second inclined surface 52 to drive the restricting member 5 to move. When emergency unlocking is required, the emergency unlocking member 9 is pulled by the emergency mechanical lock, and the pushing portion 90 of the emergency unlocking member 9 first acts on the second inclined surface 52 of the restricting member 5 to move the restricting member 5 to the left, so that the restricting portion 50 of the restricting member 5 releases the restriction, as shown in FIG. Figure 6As shown, the emergency unlocking member 9 continues to move, and then the pushing portion 90 of the emergency unlocking member 9 pushes the bolt head 2 to move (specifically, it acts on the side extension block 25 of the bolt head 2, and the side extension block 25 can be an integral structure with the bolt head 2, or it can be welded or connected to the bolt head 2 by other existing connection methods, and the limiting portion 50 of the limiting member 5 also acts on the side extension block 25 of the bolt head 2 to achieve limitation), so that the bolt head 2 enters the shell 1, thereby achieving emergency unlocking.

[0019] like Figure 1 and Figure 3 As shown, the motor 3 is connected to the toggle member 4 through a transmission gear 8, and the toggle member 4 has a tooth surface 41, and the transmission gear 8 meshes with the tooth surface 41 of the toggle member 4. There can be multiple transmission gears 8, and multiple gears 8 with different diameters meshing together can achieve the purpose of speed reduction. Compared with motors with built-in speed reduction structures, the structural cost of the present invention is lower.

[0020] As described above, the toggle member 4 drives the bolt head 2 to move through the transmission spring 7. Only one transmission spring 7 can be provided, one end of which is connected (clamped or welded) to the toggle member 4 and the other end is connected (clamped or welded) to the bolt head 2. However, this structure requires more troublesome connection and the connection is easy to break. In order to facilitate assembly and obtain a more stable structure, the inner end of the bolt head 2 has a connecting column 20, which passes through the extension 42 of the toggle member 4. The end of the connecting column 20 has a supporting end 21, and there are two transmission springs 7. The two transmission springs 7 are both sleeved on the connecting column 20, one of which is provided between the extension 42 of the toggle member 4 and the bolt head 2, and the other is provided between the extension 42 of the toggle member 4 and the supporting end 21 of the connecting column 20. When the toggle member 4 is pulled back, the transmission spring 7 between the extension portion 42 of the toggle member 4 and the support end 21 of the connecting column 20 pushes the bolt head 2 to retract; when the toggle member 4 moves forward, the transmission spring 7 between the extension portion 42 of the toggle member 4 and the bolt head 2 pushes the bolt head 2 to move forward. With this structure, the two transmission springs 7 only need to be sleeved on the connecting column 20 without the need for end connection, which makes the structure more stable and more convenient to assemble.

Claims

1. An electric bolt lock for a safe, comprising a housing (1), a motor (3) and a bolt head (2), characterized in that: The housing (1) is provided with a bolt head slide groove (10), the bolt head (2) can be slidably arranged in the bolt head slide groove (10), the housing (1) is provided with a toggle slide groove (11) parallel to the bolt head slide groove (10), a toggle member (4) can be slidably arranged in the toggle slide groove (11), the toggle member (4) is transmission-connected to the motor (3), the toggle member (4) and the bolt head (2) are transmission-connected via a transmission spring (7), the housing (1) is provided with a toggle slide groove parallel to the bolt head slide groove (10), a toggle member (4) can be slidably arranged in the toggle slide groove (11), the toggle member (4) is transmission-connected to the motor (3), the toggle member (4) and the bolt head (2) are transmission-connected via a transmission spring (7), (11) a limiting slide groove (12) perpendicular to the limiting slide groove (12), a limiting member (5) is slidably provided in the limiting slide groove (12), the limiting member (5) has a limiting portion (50) for limiting the movement of the bolt head (2), the limiting member (5) has a first inclined surface (51), the toggle member (4) has a pushing inclined surface (40) acting on the first inclined surface (51) to drive the limiting member (5) to move, and a return spring (6) is provided at the rear end of the limiting member (5) for driving the limiting member (5) to return to its original position.

2. The electric lock bolt for a safe according to claim 1, characterized in that: An emergency unlocking member (9) is arranged in the toggle slide groove (11); the limiting member (5) has a second inclined surface (52); the emergency unlocking member (9) has a pushing portion (90) acting on the second inclined surface (52) to drive the limiting member (5) to move; the pushing portion (90) of the emergency unlocking member (9) can push the bolt head (2) to move.

3. The electric lock bolt for a safe according to claim 1 or 2, characterized in that: The motor (3) is transmission-connected to the toggle member (4) via a transmission gear (8); the toggle member (4) has a tooth surface (41), and the transmission gear (8) meshes with the tooth surface (41) of the toggle member (4).

4. The electric lock bolt for a safe according to claim 1, characterized in that: The inner end of the bolt head (2) has a connecting column (20), the connecting column (20) passes through the extension portion (42) of the toggle member (4), the end of the connecting column (20) has a supporting end (21), and the transmission spring (7) has two transmission springs (7), both of which are sleeved on the connecting column (20), one of which is arranged between the extension portion (42) of the toggle member (4) and the bolt head (2), and the other is arranged between the extension portion (42) of the toggle member (4) and the supporting end (21) of the connecting column (20).

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