Automatic lock body with reversible lock tongue

Abstract

The invention discloses an automatic lock body with a reversible lock tongue, comprising a housing and a lock tongue, a fixed frame is arranged in the housing, and the fixed frame is rotatably connected with a rotating block; a driving component is also arranged in the housing, a locking assembly is arranged between the driving component and the rotating block, and the driving component drives the locking assembly to unlock or lock the rotating block; a reset component is arranged between the rotating block and the fixed frame, and the reset component drives the rotating block to rotate and reset relative to the fixed frame; the lock tongue is movably arranged on the rotating block through a telescopic component, and the lock tongue is provided with an arc-shaped guide surface, and the arc-shaped guide surface corresponds to the reversal direction of the lock tongue. The invention has the following advantages and effects: the lock tongue is reversible relative to the housing, and when the door is frequently opened and closed, the driving component does not need to be completely locked, and the door can be opened and closed by pushing and pulling the door body, which is convenient to use, saves time and effort, and when the door is in a closed state for a long time and needs to be completely locked, the driving component can drive the locking assembly to stop the rotating block.

Description

Technical Field

[0001] The invention relates to the technical field of lock bodies, and in particular to an automatic lock body with a flippable lock tongue. Background Art

[0002] The lock body is the main component of the lock, which mainly includes one-way lock body, three-way lock body and four-way lock body, etc., which are often used in anti-theft doors, safe doors and drawers. The lock tongue of the common lock body mainly adopts the method of internal and external telescopic to achieve locking or unlocking. When locking is required, the lock tongue is plugged into the corresponding lock hole on the door body through electronic verification or key locking. When unlocking is required, the lock tongue is retracted into the lock body through electronic verification or key unlocking, and disengaged from the lock hole to achieve unlocking.

[0003] However, the above lock body has the following disadvantages: when the lock body is unlocked, the lock tongue is completely separated from the lock hole. If the door is in a half-open state, a slight breeze can cause the door to open automatically. If the door needs to be kept in a closed state at all times, electronic verification or a key must be used to completely lock the door. In this way, when the user frequently enters and exits, the lock or unlocking process must be performed each time, which is troublesome, time-consuming and labor-intensive to use. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic lock body with a reversible lock tongue, which adopts a mode that the lock tongue can be turned relative to a shell body, and has the effects of being easy to use, saving time and labor.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: an automatic lock body with a reversible lock tongue, comprising a shell and a lock tongue, a fixed frame is fixedly connected inside the shell, a rotating block is rotatably connected to the fixed frame, and the lock tongue is installed in the rotating block;

[0006] A driving component is also provided in the housing, and a locking assembly is provided between the driving component and the rotating block, and the driving component drives the locking assembly to unlock or lock the rotating block;

[0007] A reset component is provided between the rotating block and the fixed frame, and the reset component drives the rotating block to rotate and reset relative to the fixed frame;

[0008] The lock tongue is movably arranged on the rotating block through a telescopic component, and the lock tongue is provided with an arc-shaped guide surface, which corresponds to the flipping direction of the lock tongue.

[0009] By adopting the above technical scheme, in the initial state (i.e. when locked), the lock tongue is inserted into the lock hole. After verification, the driving component drives the locking assembly to initially unlock the rotating block, and then pulls the door body on which the lock body is installed. The lock tongue is blocked by the edge of the lock hole and flips over with the rotating block. Subsequently, it flips and resets under the action of the resetting component. At this time, the lock tongue and the lock hole are completely unlocked; when the door body needs to be closed, the door body is pushed. Under the guiding action of the arc-shaped guide surface and the cooperation action of the telescopic component, when the lock tongue is subjected to resistance, it retracts into the rotating block to form an avoidance. When the lock tongue is aligned with the lock hole, it extends out and is correspondingly inserted into the lock hole under the action of the telescopic component. In this way, when the door is frequently opened and closed, there is no need to drive the locking assembly to be completely locked by the driving component. The door can be opened and closed by pushing and pulling the door body. It is convenient to use and saves time and effort. When the door is in a closed state for a long time and needs to be completely locked, the driving component can drive the locking assembly to stop the rotating block.

[0010] The present invention is further configured as follows: the locking assembly includes a locking groove and a locking block, the locking block is slidably arranged in the shell, a rotating shaft is arranged at the end of the rotating block, and the locking groove is correspondingly opened at the end of the rotating shaft; the driving component drives the locking block to disengage from or insert into the locking groove.

[0011] By adopting the above technical solution, when the door is fully locked, the driving component drives the locking block to move so that it is inserted into the locking groove accordingly. In this way, the rotating block can be stopped from rotating. Even if the door body is pulled outward, the rotating block cannot rotate and the unlocking process cannot be realized.

[0012] The present invention is further configured as follows: the driving component includes a driving motor, a displacement assembly is provided between the driving component and the rotating block, the displacement assembly includes a rack and a gear arranged on the output shaft of the driving motor, the gear is meshed with the rack; a sliding shaft is fixed to the fixed frame, the locking block is integrally formed with a rack seat, the rack is arranged on the rack seat, and the rack seat and the rack are slidably matched relative to the sliding shaft, and the driving motor drives the locking block to disengage from or insert into the locking groove through the displacement assembly.

[0013] By adopting the above technical solution, when locking, the rotating block rotates to the position where the locking slot and the locking block are in the same straight line, the driving motor drives the gear to rotate, and under the meshing action, the rack moves in the direction close to the locking slot, and drives the locking block to slide into the locking slot through the rack seat until the locking block is inserted into the locking slot, at which time the rotating block stops rotating; when unlocking, the driving motor drives the gear to rotate in the opposite direction, and under the meshing action, the rack moves in the opposite direction, and drives the locking block to disengage from the locking slot through the rack seat, so that the rotating block can drive the lock tongue to flip freely.

[0014] The present invention is further configured as follows: the sliding sleeve is provided with a driving spring, the rack seat is provided with a step that abuts against the rack, and the rack is slidably arranged relative to the rack seat; the driving spring drives the step to always abut against the rack, and the other end of the driving spring abuts against the fixed frame.

[0015] By adopting the above technical solution, when the driving motor drives the gear to rotate, the rack moves, and at the moment of movement, the rack and the step are separated to produce a gap. When the rack moves in the direction close to the locking groove, the rack seat is acted upon by the driving spring, so that the rack seat slides in the same direction as the movement of the rack to fill the gap, and the step is again against the rack. At the same time, the rack seat drives the locking block to be inserted into the locking groove to achieve locking during the movement process; when the driving motor drives the gear to rotate in the opposite direction, the rack moves in the opposite direction, and under the resistance of the step, it drives the locking block to disengage from the locking groove, thereby achieving unlocking.

[0016] The present invention is further configured as follows: the sliding shaft is also sleeved with an auxiliary spring, the auxiliary spring is arranged opposite to the driving spring, one end of the auxiliary spring abuts against the rack, and the other end of the auxiliary spring abuts against the fixing frame.

[0017] By adopting the above technical solution, under the elastic force of the auxiliary spring, the end of the rack can always be tightly pressed against the step.

[0018] The present invention is further configured as follows: an insertion guide surface is provided at the end of the locking block.

[0019] By adopting the above technical solution, an insertion guide surface is provided at the end of the locking block. When the rotating block and the lock tongue are stuck, that is, the locking slot is not completely in the same straight line with the locking block, under the guiding action of the insertion guide surface, only the front end part of the locking block needs to be inserted into the locking slot. The locking block can then drive the rotating block to rotate to an appropriate angle, so that the locking slot is rotated to be in the same straight line with the locking block, thereby facilitating the rapid insertion of the locking block into the locking slot.

[0020] The present invention is further configured as follows: the reset component is configured as a torsion spring, an embedding groove is provided at the end of the rotating block, one end of the torsion spring is embedded in the embedding groove, and the other end of the torsion spring abuts against the fixing frame.

[0021] By adopting the above technical solution, when the rotating block drives the lock tongue to flip, the torsion spring is compressed, and when the rotating block is in a natural state without being subjected to external forces, the torsion spring drives the rotating block to flip and reset.

[0022] The present invention is further configured as follows: the telescopic assembly comprises a telescopic spring, one end of the telescopic spring abuts against the locking tongue, and the other end of the telescopic spring abuts against the rotating block.

[0023] By adopting the above technical solution, when the lock tongue is subjected to external force, it retracts into the rotating block to compress the telescopic spring. When the lock tongue is no longer subjected to external force, it extends out of the rotating block and resets under the elastic force of the telescopic spring.

[0024] The present invention is further configured as follows: a fixing rod is arranged in the lock tongue, the telescopic spring is sleeved on the fixing rod, and the rotating block is provided with an avoidance hole for the fixing rod to pass through.

[0025] By adopting the above technical solution, the telescopic spring is sleeved on the fixed rod, the telescopic spring is not easy to deflect when compressed, and when the lock tongue is retracted into the rotating block, the fixed rod can pass through the avoidance hole.

[0026] The present invention is further configured as follows: a limiting column is provided on the rotating block, a limiting sliding groove is correspondingly provided on the side wall of the lock tongue, and the limiting sliding groove is provided along the path where the lock tongue extends into the rotating block.

[0027] By adopting the above technical solution, when the lock tongue is extended and retracted relative to the rotating block, the limiting sliding groove and the limiting column slide relative to each other, which can prevent the lock tongue from deflecting during extension and retraction to a certain extent and can also prevent the lock tongue from falling off.

[0028] In summary, the present invention has the following beneficial effects:

[0029] 1. The lock tongue can be flipped relative to the housing. When the door is frequently opened and closed, there is no need to drive the locking assembly to completely lock it through the driving component. The door can be opened and closed by pushing and pulling the door body. It is convenient to use, saving time and effort. When the door is closed for a long time and needs to be completely locked, the driving component can drive the locking assembly to stop the rotating block;

[0030] 2. Use the driving spring and auxiliary spring to cooperate so that the rack always contacts the step of the rack seat;

[0031] 3. By providing an insertion guide surface at the end of the locking block, when the rotating block and the lock tongue are stuck, that is, the locking slot is not completely in the same straight line with the locking block, the locking block only needs to insert the front end part into the locking slot to drive the rotating block to rotate at an appropriate angle so that the two are in the same straight line, which is convenient for the locking block to be quickly inserted into the locking slot. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structural relationship of the embodiment.

[0033] Figure 2 It is a schematic diagram of the internal structural relationship of the embodiment.

[0034] Figure 3 It is a schematic diagram of the structural relationship among the driving component, the displacement assembly, the locking assembly and the lock tongue of the embodiment.

[0035] Figure 4 It is an exploded view of the driving component, displacement assembly, locking assembly and lock tongue of the embodiment.

[0036] Figure 5 It is a schematic diagram of the structural relationship of the locking tongue in the flipped state of the embodiment.

[0037] In the figure: 1. shell; 11. lock body shell; 12. battery cover; 13. drive motor; 131. gear; 2. fixed frame; 3. rotating block; 31. rotating shaft; 311. locking slide; 312. embedding groove; 32. avoidance hole; 33. limiting column; 4. lock tongue; 41. arc guide surface; 42. fixing rod; 43. limiting slide; 5. sliding shaft; 51. rack; 511. sliding hole; 52. rack seat; 521. lower arc slide; 522. step; 523. locking block; 5231. insertion guide surface; 53. driving spring; 54. auxiliary spring; 6. torsion spring; 7. telescopic spring. DETAILED DESCRIPTION

[0038] The present invention will be further described below in conjunction with the accompanying drawings. Figure 3 The directions shown are consistent.

[0039] An automatic lock body with a reversible lock tongue, such as Figure 1 , Figure 2 and Figure 5 As shown, the housing 1 includes a lock body shell 11, a lock body back cover and a battery cover 12 covering the lock body shell 11, a fixing frame 2 is fixedly connected inside the housing 1, and a rotating block 3 is rotatably connected to the fixing frame 2. A lock tongue 4 is telescopically arranged inside the rotating block 3, and the rotating block 3 can drive the lock tongue 4 to flip. The lock tongue 4 is provided with an arc-shaped guide surface 41, and the arc-shaped guide surface 41 corresponds to the flipping direction of the lock tongue 4.

[0040] like Figure 2-4As shown, a driving component is arranged in the housing 1, and the driving component is arranged as a driving motor 13, and the output shaft of the driving motor 13 is arranged with a gear 131; a sliding shaft 5 is arranged on the fixed frame 2, and the axis of the sliding shaft 5 is perpendicular to the axis of the output shaft of the driving motor 13, and a rack 51 and a rack seat 52 are slidably arranged on the sliding shaft 5, and the rack 51 is meshed with the gear 131, and a lower arc-shaped groove 521 is provided on the upper surface of the rack seat 2, and the lower surface of the rack 51 is embedded in the lower arc-shaped groove 521, and a sliding hole 511 is provided in the axial direction of the rack 51, and the sliding shaft 5 passes through the sliding hole 511, and the driving motor 13 drives the rack 51 to move along the axis of the sliding shaft 5 The rack 51 can slide to the right relative to the rack seat 52, and a step 522 is provided at the left end of the rack seat 52. The left end of the rack 51 abuts against the step 522. The rack 51 can slide to the right relative to the rack seat 52. The left end of the sliding shaft 5 is sleeved with a driving spring 53, one end of the driving spring 53 abuts against the fixed frame 2, and the other end of the driving spring 53 abuts against the rack seat 52. The right end of the sliding shaft 5 is sleeved with an auxiliary spring 54, and the auxiliary spring 54 is arranged opposite to the driving spring 53. One end of the auxiliary spring 54 abuts against the rack 51, and the other end of the auxiliary spring 54 abuts against the fixed frame 2. The auxiliary spring 54 cooperates with the driving spring 53, so that the rack 51 is always abutted against the rack seat 52.

[0041] like Figure 4 As shown, a locking assembly is arranged between the driving motor 13 and the rotating block 3, and the locking assembly includes a locking block 523 integrally formed on the rack seat 52 and a locking groove 311 opened on the rotating block 3. A rotating shaft 31 is arranged on both sides of the rotating block 3, and the locking groove 311 is opened at the end of the rotating shaft 31 close to the locking block 523 along the radial direction of the rotating shaft 31; the locking block 523 is slidably arranged in the shell 1, and the rack seat 52 and the locking block 523 are in a "Z" shape as a whole. When the rack seat 52 slides relative to the sliding shaft 5, the locking block 523 is driven to slide in the same direction, so that it is inserted into or disengaged from the locking groove 311, and the end of the locking block 523 close to the locking groove 311 is provided with an insertion guide surface 5231.

[0042] like Figure 2 and Figure 4 As shown, a reset component is provided between the rotating block 3 and the fixed frame 2, and the reset component is set as a torsion spring 6, which is sleeved on the rotating shaft 31 on the other side of the rotating block 3, and an embedding groove 312 is opened at the end of the rotating shaft 31 on the other side, one end of the torsion spring 6 is embedded in the embedding groove 312, and the other end of the torsion spring 6 is against the fixed frame 2. When the rotating block 3 drives the lock tongue 4 to flip, the torsion spring 6 is compressed, and when the rotating block 3 is in a natural state without external force, the torsion spring 6 drives the rotating block 3 to flip and reset.

[0043] like Figure 4As shown, a telescopic assembly is arranged between the lock tongue 4 and the rotating block 3, and the telescopic assembly includes a telescopic spring 7, one end of the telescopic spring 7 abuts against the inner wall of the lock tongue 4, and the other end of the telescopic spring 7 abuts against the inner wall of the rotating block 3. A fixed rod 42 is arranged in the lock tongue 4 along the telescopic direction, and the telescopic spring 7 is sleeved on the fixed rod 42. A corresponding avoidance hole 32 for the fixed rod 42 to pass through is opened in the rotating block 3. A limiting column 33 is arranged on the side wall of the rotating block 3, and a limiting slide groove 43 is correspondingly opened on the side wall of the lock tongue 4. The limiting slide groove 43 is opened along the path of the lock tongue 4 extending into the rotating block 3. When the lock tongue 4 is telescoped relative to the rotating block 3, the limiting slide groove 43 slides relative to the limiting column 33, which can prevent the lock tongue 4 from deflecting when telescoped to a certain extent, and can also prevent the lock tongue from falling off.

[0044] When the lock tongue 4 is subjected to external force, it retracts into the rotating block 3, compressing the telescopic spring 7. When the lock tongue 4 is no longer subjected to external force, it extends out of the rotating block 3 under the elastic force of the telescopic spring 7 to reset. The telescopic spring 7 is sleeved on the fixed rod 42. When the telescopic spring 7 is compressed, it is not easy to deviate. When the lock tongue 4 is retracted into the rotating block 3, the fixed rod 42 can pass through the avoidance hole 32.

[0045] The basic working principle of the present invention is: in the initial state (i.e. locked state), the lock tongue 4 is inserted into the lock hole, and after verification, the drive motor 13 drives the gear 131 to rotate clockwise ( Figure 3 ), driving the rack 51 to move leftward. Since the left end of the rack 51 abuts against the step 522 of the rack seat 52, the rack seat 52 drives the locking block 523 to move leftward, and the locking block 523 completely disengages from the locking slot 311 to achieve preliminary unlocking. At this time, the driving spring 53 is compressed, and the rotating block 3 can drive the lock tongue 4 to flip relatively.

[0046] When the door is opened, the door body with the lock body installed is pulled outward, and the lock tongue 4 is blocked by the edge of the lock hole and turns over together with the rotating block 3 ( Figure 5 When the lock tongue 4 is away from the lock hole, the rotating block 3 is turned over and reset under the action of the torsion spring 6 ( Figure 1 When the door is closed, the door body is pushed inward, and under the guiding effect of the arc-shaped guide surface 41 and the cooperation of the telescopic component, when the lock tongue 4 encounters resistance, it retracts into the rotating block 3 to form an avoidance. When the lock tongue 4 is aligned with the lock hole, it extends out and is correspondingly inserted into the lock hole under the action of the telescopic spring 7. In this way, when the door is frequently opened and closed, there is no need to drive the locking component to be completely locked by the driving motor 13. The door can be opened and closed by pushing and pulling the door body, which is more convenient to use and saves time and effort.

[0047] When the door is in the closed state for a long time and needs to be completely locked, the driving motor 13 drives the gear 131 to rotate counterclockwise, causing the rack 51 to slide to the right. At the moment of movement, the rack 51 and the step 522 are separated to create a gap. Since the rack seat 52 is acted upon by the driving spring 53, the rack seat 52 also slides to the right to fill the gap, and the step 522 is again against the rack 51. At the same time, the rack seat 52 drives the locking block 523 to be inserted into the locking groove 311 during the movement to achieve anti-rotation locking. At this time, even if the door body is pulled outward, the rotating block 3 cannot rotate, and the unlocking process cannot be achieved. When the rotating block 3 is completely flipped to the reset state, the locking groove 311 and the locking block 523 are in the same straight line. When the rotating block 3 is stuck and not completely flipped to reset, under the guiding action of the insertion guide surface 5231, only the front end part of the locking block 523 needs to be inserted into the locking groove 311, and the locking block 523 can drive the rotating block 3 to rotate to an appropriate angle, so that the locking groove 311 is rotated to the same straight line as the locking block 523, which is convenient for the locking block 523 to be quickly inserted into the locking groove 311.

[0048] It should be noted that the present invention is not only applicable to door bodies, but also applicable to any components with an opening and closing process, such as drawers.

[0049] The above description is only a preferred embodiment of the present invention, so all equivalent changes or modifications made according to the structure, characteristics and principles described in the scope of the patent application of the present invention are included in the scope of the patent application of the present invention.

Claims

1. An automatic lock body with a reversible lock tongue, comprising a housing (1) and a lock tongue (4), characterized in that: A fixing frame (2) is fixedly connected inside the housing (1), a rotating block (3) is rotatably connected to the fixing frame (2), and the locking tongue (4) is installed inside the rotating block (3); A driving component is also provided in the housing (1), a locking assembly is provided between the driving component and the rotating block (3), and the driving component drives the locking assembly to unlock or lock the rotating block (3); A reset component is provided between the rotating block (3) and the fixed frame (2), and the reset component drives the rotating block (3) to rotate and reset relative to the fixed frame (2); The locking tongue (4) is movably arranged on the rotating block (3) through a telescopic component, and the locking tongue (4) is provided with an arc-shaped guide surface (41), and the arc-shaped guide surface (41) corresponds to the flipping direction of the locking tongue (4); The locking assembly comprises a locking slot (311) and a locking block (523), wherein the locking block (523) is slidably disposed in the housing (1), a rotating shaft (31) is disposed at the end of the rotating block (3), and the locking slot (311) is correspondingly opened at the end of the rotating shaft (31); The driving component comprises a driving motor (13), a displacement assembly is provided between the driving component and the rotating block (3), the displacement assembly comprises a rack (51) and a gear (131) provided on the output shaft of the driving motor (13), the gear (131) being meshed with the rack (51); the fixing frame (2) is fixedly provided with a sliding shaft (5), the locking block (523) is integrally formed with a rack seat (52), the rack (51) is provided on the rack seat (52), and the rack seat (52) and the rack (51) are slidably matched relative to the sliding shaft (5), and the driving motor (13) drives the locking block (523) to disengage from or insert into the locking slide groove (311) through the displacement assembly; The reset component is configured as a torsion spring (6); an embedding groove (312) is provided at the end of the rotating block (3); one end of the torsion spring (6) is embedded in the embedding groove (312), and the other end of the torsion spring (6) abuts against the fixing frame (2); The telescopic assembly comprises a telescopic spring (7), one end of the telescopic spring (7) abuts against the locking tongue (4), and the other end of the telescopic spring (7) abuts against the rotating block (3).

2. The automatic lock body with a reversible lock tongue according to claim 1, characterized in that: The sliding shaft (5) is sleeved with a driving spring (53); the rack seat (52) is provided with a step (522) that abuts against the rack (51); the rack (51) is slidably arranged relative to the rack seat (52); the driving spring (53) drives the step (522) to always abut against the rack (51); and the other end of the driving spring (53) abuts against the fixed frame (2).

3. The automatic lock body with a reversible lock tongue according to claim 2, characterized in that: The sliding shaft (5) is also sleeved with an auxiliary spring (54), which is arranged opposite to the driving spring (53), one end of the auxiliary spring (54) abuts against the rack (51), and the other end of the auxiliary spring (54) abuts against the fixing frame (2).

4. The automatic lock body with a reversible lock tongue according to claim 1, characterized in that: An insertion guide surface (5231) is provided at the end of the locking block (523).

5. The automatic lock body with a reversible lock tongue according to claim 1, characterized in that: A fixing rod (42) is arranged inside the locking tongue (4), the telescopic spring (7) is sleeved on the fixing rod (42), and the rotating block (3) is provided with an avoidance hole (32) for the fixing rod (42) to pass through.

6. The automatic lock body with a reversible lock tongue according to claim 1, characterized in that: The rotating block (3) is provided with a limiting column (33), and the side wall of the locking tongue (4) is correspondingly provided with a limiting sliding groove (43), and the limiting sliding groove (43) is provided along the path of the locking tongue (4) extending into the rotating block (3).

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