A flip tongue locking structure

Abstract

The utility model relates to a flip tongue locking structure, comprising a lock box, a flip tongue, a locking member, a lock core, and a paddle. A lock hole is provided on one side of the lock box, the flip tongue is inserted into the lock hole and can slide along the width direction of the lock box, the locking member is rotatably connected to the lock box, the two ends of the locking member are respectively a locking block and a transmission rod, the paddle is rotatably connected to the lock box, the transmission rod is rotatably connected to the paddle, the lock core can drive the paddle to rotate, and the paddle drives the locking block to rotate through the transmission rod, so that the locking block extends into or away from the sliding path of the flip tongue. The utility model has a simple and reasonable structure, can be applied to the locking of the flip tongue, and ensures the safety and convenience of the door lock.

Description

Technical Field

[0001] The utility model relates to the technical field of locks, in particular to a flip tongue locking structure. Background Art

[0002] Currently, door leaves include two structural forms: left-opening and right-opening. Accordingly, in order to adapt to these two door leaf structures, some lock manufacturers will set a flip tongue in the door lock. The flip tongue can be flipped to change the direction, so that the door lock is suitable for both left-opening and right-opening door structures.

[0003] Existing door locks are usually provided with a locking structure, which can ensure that the inclined bolt extends out of the lock box and cannot slide when the door is locked, thereby preventing the door lock from being opened abnormally. The existing locking structure is only applicable to conventional inclined bolts, and there is still a lack of a simple and effective locking structure for variable-direction flip bolts. Utility Model Content

[0004] The utility model aims to provide a flip tongue locking structure, which has a simple and reasonable structure and can be applied to the locking of the flip tongue, thereby ensuring the safety and convenience of the door lock.

[0005] A flip tongue locking structure comprises a lock box, a flip tongue, a locking piece, a lock core, and a paddle, wherein a lock hole is provided on one side of the lock box, the flip tongue is inserted into the lock hole and can slide along the width direction of the lock box, grooves are provided on both sides of the flip tongue in a mirror-like manner, the locking piece is rotatably connected to the lock box, the two ends of the locking piece are respectively a locking block and a transmission rod, the paddle is rotatably connected to the lock box, the transmission rod is rotatably connected to the paddle, the lock core can drive the paddle to rotate, and the paddle drives the locking block to rotate through the transmission rod, so that the locking block extends into or away from the groove of the flip tongue close to the locking piece.

[0006] In the above technical solution, the locking member is driven by the paddle and the lock core. When locking the door, the lock core drives the paddle to rotate, and the paddle in turn drives the locking member to rotate, so that the locking block extends into the groove of the flip tongue, thereby blocking the sliding of the flip tongue and preventing the flip tongue from retracting into the lock box, thereby ensuring the safety of the door lock. The grooves are mirrored on both sides of the flip tongue, which can ensure that after the flip tongue turns, it still has a groove corresponding to the locking block, and the locking block can still lock the flip tongue through the groove, so that the locking structure is suitable for the flip tongue, improving the applicability and convenience of the door lock.

[0007] Furthermore, a U-shaped plate is provided in the lock box, the U-shaped plate is arranged at a position close to the lock hole, the U-shaped plate is provided with a positioning hole, and the locking block can be movably inserted into the positioning hole.

[0008] In the above technical solution, a positioning hole is provided on the U-shaped plate, and the locking block can be positioned through the positioning hole to ensure the accuracy of the locking block extending into the slot each time.

[0009] Furthermore, a through hole is provided at one end of the paddle close to the locking member, and a pin is provided on the transmission rod, and the pin passes through the through hole.

[0010] In the above technical solution, the pin is inserted into the through hole so that the locking member is transmission-connected to the paddle. During the rotation of the paddle, the pin maintains contact with the paddle, ensuring a stable and effective connection while avoiding collisions between parts, thereby reducing noise when unlocking or locking the door and improving the user experience.

[0011] Furthermore, the lock core is provided with a rotatable toggle member, one end of the toggle piece is provided with a boss, and the toggle member can push the boss to drive the toggle piece to rotate.

[0012] In the above technical solution, when in use, turning the key can drive the toggle member to rotate, so that the toggle member abuts against the boss, thereby driving the paddle to rotate.

[0013] Furthermore, a guide column is provided in the lock box, the paddle is provided with an arc-shaped groove, and the guide column passes through the arc-shaped groove.

[0014] In the above technical solution, the guide column can guide the rotation of the paddle, making the rotation of the paddle more stable and accurate.

[0015] Furthermore, the lock box is provided with a pin shaft, the locking member is provided with an axial hole, the axial hole is located between the locking block and the transmission rod, and the pin shaft passes through the axial hole.

[0016] In the above technical solution, the locking member is inserted into the pin shaft through the shaft hole, thereby being rotationally connected with the lock box. The structure is simple and easy to implement.

[0017] Furthermore, an opening is formed at one end of the groove body, and a supporting surface is provided at the other end, and the supporting surface can be abutted against the locking block to prevent the flip tongue from sliding.

[0018] In the above technical solution, when the locking block extends into the groove body, the sliding of the flip tongue causes the abutting surface to abut against the locking block, and the locking block blocks the sliding path of the flip tongue, thereby preventing the flip tongue from retracting into the lock box.

[0019] Furthermore, the lock box includes a base and a lining plate, wherein the lining plate is arranged on one side of the base, and the lock hole is arranged on the lining plate.

[0020] Compared with the prior art, the utility model has the following beneficial effects: the locking member is driven by the paddle and the lock core. When locking the door, the lock core drives the paddle to rotate, and the paddle in turn drives the locking member to rotate, so that the locking block extends into the groove of the flip tongue, thereby blocking the sliding of the flip tongue and preventing the flip tongue from retracting into the lock box, thereby ensuring the safety of the door lock. The grooves are mirrored on both sides of the flip tongue, which can ensure that after the flip tongue turns, the locking block can still lock the flip tongue through the groove, so that the locking structure is suitable for the flip tongue, thereby improving the applicability and convenience of the door lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the flip tongue locking structure of an embodiment of the utility model.

[0022] Figure 2 It is a schematic structural diagram of the flip tongue of an embodiment of the utility model.

[0023] Figure 3 It is a schematic structural diagram of a locking member according to an embodiment of the utility model.

[0024] Figure 4 It is a structural schematic diagram of a U-shaped plate according to an embodiment of the utility model.

[0025] Figure 5 The figure is a schematic structural diagram of a lock core and a paddle according to an embodiment of the utility model.

[0026] Description of Figure Numbers:

[0027] Lock box 10, lining plate 11, pin shaft 12, guide column 13, flip tongue 20, groove body 21, abutting surface 22, locking member 30, locking block 31, transmission rod 32, shaft hole 33, pin column 34, lock cylinder 40, toggle member 41, paddle 50, air avoidance groove 51, boss 52, extension arm 53, through hole 54, arc groove 55, U-shaped plate 60, positioning hole 61. DETAILED DESCRIPTION

[0028] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the accompanying drawings. The accompanying drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein.

[0029] Please refer to Figures 1 to 5 In a preferred embodiment, the locking structure of the flip tongue 20 of the utility model mainly includes a lock box 10, a flip tongue 20, a locking member 30, a lock core 40, and a paddle 50. The lock box 10 is a hollow structure, and includes two shells arranged opposite to each other, and a lining plate 11 arranged on one side of the two shells. The lining plate 11 is provided with a lock hole, and the flip tongue 20 is inserted into the lock hole. The flip tongue 20 is configured to slide along the width direction of the lock box 10.

[0030] Please refer to Figure 2 , grooves 21 are provided on both sides of the flip tongue 20 in a mirror-like manner, the locking member 30 is rotatably connected to the lock box 10, the two ends of the locking member 30 are respectively a locking block 31 and a transmission rod 32, the paddle 50 is rotatably connected to the lock box 10, the transmission rod 32 is rotatably connected to the paddle 50, the lock cylinder 40 can drive the paddle 50 to rotate, and the paddle 50 drives the locking block 31 to rotate through the transmission rod 32, so that the locking block 31 extends into or away from the groove 21 on the side of the flip tongue 20 close to the locking member 30.

[0031] Exemplarily, the locking member 30 is provided with an axial hole 33 near the middle, and the axial hole 33 is located between the locking block 31 and the transmission rod 32. A pin shaft 12 is provided in the lock box 10, and the pin shaft 12 is passed through the axial hole 33, so that the locking member 30 can rotate relative to the lock box 10 with the pin shaft 12 as the axis. An opening is formed at one end of the groove body 21, and a supporting surface 22 is provided at the other end. The supporting surface 22 can be abutted against the locking block 31 to prevent the flip tongue 20 from sliding. When the locking block 31 extends into the groove body 21, the sliding of the flip tongue 20 will cause the abutting surface 22 to abut against the locking block 31, and the locking block 31 blocks the sliding path of the flip tongue 20, thereby preventing the flip tongue 20 from retracting into the lock box 10.

[0032] Please refer to Figure 5 , the paddle 50 is rotatably arranged in the lock box 10. For example, the paddle 50 has a substantially U-shaped air-avoiding groove 51. The two ends of the air-avoiding groove 51 are respectively close to the two sides of the lock core 40, one end of which is rotatably connected to the lock box 10, and the other end is provided with a boss 52. The lock core 40 is provided with a rotatable toggle member 41, and the toggle member 41 can push the boss 52 to drive the paddle 50 to rotate. When in use, inserting a key into the lock core 40, turning the key can drive the toggle member 41 to rotate, so that the toggle member 41 and the boss 52 are against each other, and further turning the key can drive the paddle 50 to rotate through the toggle member 41 to achieve the unlocking action.

[0033] A through hole 54 is provided at one end of the paddle 50 close to the locking member 30, and a pin 34 is provided on the transmission rod 32, and the pin 34 is penetrated through the through hole 54. For example, the end of the paddle 50 away from the lock cylinder 40 extends outward to form an extension arm 53, and the through hole 54 is provided on the extension arm 53. The pin 34 is vertically provided on the transmission rod 32 and penetrated through the through hole 54, so that the locking member 30 and the paddle 50 are connected in transmission. During the rotation of the paddle 50, the pin 34 maintains contact with the paddle 50, ensuring a stable and effective connection while avoiding collisions between parts, thereby reducing noise when unlocking or locking the door and improving the user experience. By providing the through hole 54 on the extension arm 53, the stroke of the paddle 50 when rotating can be increased, so that when using the key, a small angle of rotation can drive the paddle 50 to rotate a large stroke and drive the locking member 30 to rotate, which is more convenient to use.

[0034] Please refer to Figure 1 A U-shaped plate 60 is provided in the lock box 10, and the U-shaped plate 60 is provided near the lock hole. The U-shaped plate 60 is provided with a positioning hole 61, and the positioning hole 61 is located on a side near the locking member 30, and the locking block 31 can be movably penetrated in the positioning hole 61. In specific implementation, the shape and size of the positioning hole 61 match the shape and size of the locking block 31, and the locking block 31 can be positioned through the positioning hole 61, so as to ensure the accuracy of the locking block 31 extending into the slot 21 each time.

[0035] In this embodiment, a guide post 13 is provided in the lock box 10, and an arc groove 55 is provided in the paddle 50, and the guide post 13 is passed through the arc groove 55. The guide post 13 can guide the rotation of the paddle 50, so that the rotation of the paddle 50 is more stable and accurate.

[0036] The locking member 30 of the utility model is driven by the paddle 50 and the lock core 40. When locking the door, the lock core 40 drives the paddle 50 to rotate, and the paddle 50 further drives the locking member 30 to rotate, so that the locking block 31 extends into the groove 21 of the flip tongue 20, thereby blocking the flip tongue 20 from sliding and preventing the flip tongue 20 from retracting into the lock box 10, thereby ensuring the safety of the door lock. The groove 21 is mirrored on both sides of the flip tongue 20, which can ensure that after the flip tongue 20 turns, it still has a groove 21 corresponding to the locking block 31, and the locking block 31 can still lock the flip tongue 20 through the groove 21, so that the locking structure is suitable for the flip tongue 20, improving the applicability and convenience of the door lock.

[0037] In the description of the present invention, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flip tongue locking structure, characterized in that: The invention comprises a lock box, a flip tongue, a locking piece, a lock core, and a paddle. A lock hole is provided on one side of the lock box. The flip tongue is inserted into the lock hole and can slide along the width direction of the lock box. Grooves are provided on both sides of the flip tongue in a mirror-like manner. The locking piece is rotatably connected to the lock box. The two ends of the locking piece are respectively a locking block and a transmission rod. The paddle is rotatably connected to the lock box. The transmission rod is rotatably connected to the paddle. The lock core can drive the paddle to rotate. The paddle drives the locking block to rotate through the transmission rod so that the locking block extends into or away from the groove on the flip tongue close to the locking piece.

2. The flip tongue locking structure according to claim 1, characterized in that: A U-shaped plate is arranged in the lock box, the U-shaped plate is arranged at a position close to the lock hole, the U-shaped plate is provided with a positioning hole, and the locking block can be movably inserted into the positioning hole.

3. The flip tongue locking structure according to claim 1, characterized in that: A through hole is provided at one end of the paddle close to the locking member, and a pin is provided on the transmission rod, and the pin passes through the through hole.

4. The flip tongue locking structure according to claim 1, characterized in that: The lock core is provided with a rotatable toggle member, one end of the toggle piece is provided with a boss, and the toggle member can push the boss to drive the toggle piece to rotate.

5. The flip tongue locking structure according to claim 1, characterized in that: A guide column is arranged in the lock box, an arc groove is formed in the paddle, and the guide column passes through the arc groove.

6. The flip tongue locking structure according to claim 1, characterized in that: The lock box is provided with a pin shaft, the locking member is provided with an axial hole, the axial hole is located between the locking block and the transmission rod, and the pin shaft passes through the axial hole.

7. The flip tongue locking structure according to claim 1, characterized in that: An opening is formed at one end of the groove body, and a supporting surface is provided at the other end. The supporting surface can be abutted against the locking block to prevent the flip tongue from sliding.

8. The flip tongue locking structure according to claim 1, characterized in that: The lock box comprises a base and a lining plate, wherein the lining plate is arranged on one side of the base, and the lock hole is arranged on the lining plate.

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