A lock body

Abstract

The present invention relates to the technical field of locks. For convenient use, the present invention provides a lock body. Among them, a limit frame is clamped on both sides of the tipping tongue groove opening. A sliding through hole is provided on the limit plate of the limit frame, and a flipping slot is provided on the right side plate of the limit frame; the tipping tongue mechanism is located inside the limit frame, and a limit sliding groove opposite to the flipping slot is provided on the right side surface of the tipping tongue; in the flipping member, a vertical plate is connected to the bottom block and is provided with a flipping cross plate that can be inserted into the limit sliding groove. A column is located on the bottom block, and a reset slot is provided at the reset end of the bottom block; in the unlocking dial member, a dial and a dial arm are located on a dial sleeve. The dial sleeve is sleeved on the unlocking column. The dial is clamped between the vertical plate and the column, the column is inserted between the dial and the dial arm, and the dial arm extends towards the driving device and can drive the dial sleeve to rotate around the unlocking column under the drive of the driving device; a reset torsion spring is sleeved on the dial sleeve, one end is pressed against the side wall of the lock body, and the other end is inserted into the reset slot. The lock body of the present invention is simple and convenient to operate for opening and closing the door.

Description

Technical Field

[0001] The invention relates to the technical field of locks, in particular to a lock body with a flap tongue. Background Art

[0002] At present, anti-theft door locks usually use a two-way sliding tongue device, which often requires a trigger paddle to cooperate with the trigger tongue to be fixed when closing the door. Therefore, when opening the door after unlocking, a key still needs to be used to move the trigger paddle to drive the trigger lock tongue to retract, which is inconvenient to use. Summary of the invention

[0003] For convenient use, the present invention provides a lock body, which includes a limit frame, a flip tongue mechanism, a flip member, a reset torsion spring and an unlocking dial, wherein the left side plate and the right side plate of the limit frame are clamped on both sides of the flip tongue notch on the side wall of the lock body, a sliding through hole is arranged on the limit plate of the limit frame, and a flip card slot is arranged on the right side plate of the limit frame close to the driving device in the lock body;

[0004] The bucket tongue mechanism comprises a bucket tongue, a fixing part and a return spring, wherein the bucket tongue is provided with a limit slide groove on the right side surface of the right side plate of the limit frame, and the limit slide groove is opposite to the flipping slot; the fixing part comprises a fixing seat and a slide rod, the contact end of the fixing seat is rotatably contacted with the flipping end of the bucket tongue, and the free end of the slide rod is away from the contact end of the fixing seat and inserted into the sliding through hole; the return spring is sleeved on the slide rod and clamped between the fixing seat and the limit plate;

[0005] The flip member comprises a bottom block, a vertical plate and a column, wherein the vertical plate is fixedly connected to the bottom block at the connecting end of the bottom block, the column is located at the top of the bottom block and close to the reset end of the bottom block, and the reset end of the bottom block is provided with a reset slot; a flip horizontal plate is provided on the side of the vertical plate away from the column, and the flip horizontal plate can pass through the flip slot and be inserted into the limit slide groove;

[0006] The unlocking lever comprises a lever sleeve, a lever piece and a lever arm, wherein the lever piece and the lever arm are arranged on the lever sleeve, and a lever receiving groove is arranged between the lever piece and the lever arm; the lever sleeve is sleeved on the unlocking column in the lock body, and the lever piece is clamped between the vertical plate and the column, and the column is inserted in the lever receiving groove, and the free end of the lever arm extends toward the driving device and can drive the lever sleeve to rotate around the unlocking column under the drive of the driving device;

[0007] The reset torsion spring is sleeved on the pull sleeve and pressed by the pull piece and the pull arm, and one end of the reset torsion spring is pressed against the side wall of the lock body, and the other end of the reset torsion spring is inserted into the reset slot on the flip member.

[0008] When the door is opened, the person who opens the door pulls the handle so that the handle drives the lock body driving gear in the driving device in the lock body to rotate, thereby causing the lock body driving gear to drive the lever arm in the unlocking lever to drive the lever to rotate around the unlocking column to move away from the limit frame, and when the lever is away from the limit frame, it will apply force to the column in the flip member to push the flip member to move in the direction away from the limit frame, thereby causing the flip cross plate in the flip member to slide out of the limit sliding groove on the flip tongue. At this time, pushing the door can cause the flip tongue to be flipped under force and slide out of the flip tongue accommodating groove on the door frame and retract into the limit frame, thereby opening the door. During the process of closing the door, when the door closer pulls the handle to make the door panel and the door frame buckle together, the bucket tongue slides out of the limit frame under the action of the reset spring and is inserted into the bucket tongue receiving groove on the door frame. At this time, the door closer releases the handle, and the lock body driving gear in the driving device rotates in the opposite direction to reset. The flip member moves toward the limit frame under the action of the reset torsion spring until the flip horizontal plate on the flip member is inserted into the limit sliding groove on the bucket tongue, so that the flip horizontal plate clamps the bucket tongue to prevent the bucket tongue from sliding out of the bucket tongue receiving groove. It can be seen that the lock body of the present invention is simple and convenient to operate when the door is not locked.

[0009] Preferably, two mutually parallel limiting slide grooves are provided on the side of the flap tongue, two flip card grooves are provided on the right side plate of the limiting frame, and two flip transverse plates are provided on the vertical plate of the flip member. In this way, the flap tongue is clamped by two flip transverse plates in cooperation with the two limiting slide grooves on the flap tongue, which can improve the stability of the flap tongue when it is clamped by the flip member. Furthermore, the limiting slide grooves are symmetrically provided on both sides of the flap tongue. In this way, when assembling the lock body of the present invention, it is not necessary to confirm the installation direction of the flap tongue, which can improve the assembly efficiency and reduce the production cost of the lock body of the present invention.

[0010] Preferably, in the flip member, a top protrusion is provided on the top of the vertical plate, and a bottom protrusion is provided on the bottom of the vertical plate. Thus, when the present invention is implemented, the top protrusion can be inserted into the guide slot on the top panel of the lock body, and the bottom protrusion can be inserted into the guide slot on the bottom panel of the lock body, so that the flip member moves along the guide slot when it is away from the limit frame or close to the limit frame, thereby preventing the flip member from being misplaced during the movement and affecting the reset, and even affecting the use of the lock body of the present invention.

[0011] Preferably, the limiting frame is a U-shaped frame. Such a limiting frame has a simple structure and is easy to manufacture. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the lock body of the present invention when the door is opened and the top panel is removed;

[0013] Figure 2 It is a schematic diagram of the structure of the lock body of the present invention when the door is closed and the top panel is removed;

[0014] Figure 3 is Figure 2 An enlarged schematic diagram of Q in Specific implementation manner

[0015] Next, in combination with Figures 1 to 3 The lock body of the present invention will be described in detail.

[0016] As Figures 1 to 3 shown, the lock body of the present invention includes a limit frame 1, a tipping tongue mechanism, a flipping member, an unlocking dial member, and a reset torsion spring 5. Among them, the left side plate 11 and the right side plate 12 of the limit frame 1 are clamped on both sides of the tipping tongue slot 61 on the side wall 6 of the lock body. A sliding through hole 131 is provided on the limit plate 13 of the limit frame 1, and a flipping slot 121 is provided on the right side plate 12 of the limit frame 1 close to the driving device 7 inside the lock body. Preferably, the limit frame 1 is a U-shaped frame, with a simple structure and convenient manufacturing.

[0017] The tipping tongue mechanism includes a tipping tongue 21, a fixing member, and a return spring 23. Among them, the tipping tongue 21 is provided with a limiting chute 211 on the right side surface facing the right side plate 12 of the limiting frame 1, and the limiting chute 211 faces the flipping slot 121 on the limiting frame 1. The fixing member includes a fixing seat 221 and a sliding rod 222. The contact end of the fixing seat 221 is rotatably in contact with the flipping end of the tipping tongue 21. The free end of the sliding rod 222 faces away from the contact end of the fixing seat 221 and is inserted into the sliding through hole 131 on the limiting frame 1. The return spring 23 is sleeved on the sliding rod 222 and is clamped between the fixing seat 221 and the limiting plate 13 on the limiting frame 1. In this way, when the tipping tongue 21 is subjected to a force in the direction of the top panel (not shown in the figure) or the bottom panel 8 of the lock body, the tipping tongue 21 flips and pushes the fixing member to compress the return spring 23 and move towards the limiting plate 13 in the limiting frame 1, thereby driving the tipping tongue 21 to retract into the limiting frame 1 inside the lock body; when the force in the direction of the top panel or the bottom panel 8 of the lock body acting on the tipping tongue 21 disappears, the tension of the return spring 23 pushes the fixing member away from the limiting plate 13 in the limiting frame 1, thereby pushing the tipping tongue 21 to move away from the limiting plate 13, and then the tipping tongue 21 extends out from the tipping tongue slot 61. Preferably, limiting chutes 211 are symmetrically arranged on both sides of the tipping tongue 21. In this way, when assembling the lock body of the present invention, there is no need to confirm the installation direction of the tipping tongue 21, which can improve the assembly efficiency and reduce the production cost of the lock body of the present invention. Preferably, a top limiting protrusion 2211 is provided on the top of the fixing seat 221 facing the top panel, and a bottom limiting protrusion (not shown in the figure) is provided on the bottom of the fixing seat 221 facing the bottom panel 8. In this way, the top limiting protrusion 2211 of the fixing seat 221 is inserted into the flipping chute on the top panel, and the bottom limiting protrusion is inserted into the flipping chute 81 on the bottom panel 8. When the tipping tongue 21 flips, the fixing seat 221 can slide along the flipping chute to prevent misalignment when the tipping tongue 21 of the tipping tongue mechanism flips.

[0018] The flipping member includes a bottom block 31, a vertical plate 32, and a column 33. Among them, the vertical plate 32 is fixedly connected to the bottom block 31 at the connection end of the bottom block 31 facing the right side plate 12 of the limit frame 1. The column 33 is located at the top of the bottom block 31 and is close to the reset end of the bottom block 31 away from the limit frame 1. A reset card slot 311 is provided at the reset end of the bottom block 31. A flipping cross plate 321 is provided on the side of the vertical plate 32 facing away from the column 33, that is, facing the right side plate 12 of the limit frame 1, and this flipping cross plate 321 can be inserted through the flipping card slot 121 into the limit sliding slot 211 on the tipping tongue 21. In this way, during use, when closing the door, the flipping member can be pushed towards the limit frame 1, so that the flipping cross plate 321 is inserted into the limit sliding slot 211 on the tipping tongue 21, and then the flipping member catches the tipping tongue 21 to prevent the tipping tongue 21 from flipping; when opening the door, the flipping member can be pushed away from the limit frame 1, so that the flipping cross plate 321 slides out of the limit sliding slot 211 on the tipping tongue 21, and then the flipping member is separated from the tipping tongue 21 to facilitate the tipping tongue 21 to be flipped under force. Preferably, in the flipping member, a top bump 322 is provided at the top of the vertical plate 32, and a bottom bump (not shown in the figure) is provided at the bottom of the vertical plate 32. In this way, when implementing the present invention specifically, the top bump 322 can be inserted into the guiding sliding slot on the top panel of the lock body, and the bottom bump can be inserted into the guiding sliding slot (not shown in the figure) on the bottom panel 8 of the lock body, so that when the flipping member moves away from or close to the limit frame 1, it moves along the guiding sliding slot, thereby preventing the flipping member from being misaligned during the movement process and affecting the reset, and even affecting the use of the lock body of the present invention.

[0019] The unlocking dialing member includes a dial sleeve 41, a dial piece 42, and a dial arm 43. The dial piece 42 and the dial arm 43 are provided on the outer wall of the dial sleeve 41, and a V-shaped receiving dial slot 44 is provided between the dial piece 42 and the dial arm 43; the dial sleeve 41 is sleeved on the unlocking column 9 in the lock body, and the dial piece 42 is clamped between the vertical plate 32 and the column 33 in the flipping member, the column 33 is inserted into the receiving dial slot 44, and the free end of the dial arm 43 extends towards the driving device 7 and can drive the dial sleeve 41 to rotate around the unlocking column 9 under the drive of the driving device 7. The reset torsion spring 5 is sleeved on the dial sleeve 41 and is pressed by the dial piece 42 and the dial arm 43 to prevent the reset torsion spring 5 from slipping off the dial sleeve 41. One end of the reset torsion spring 5 abuts against the side wall 61 of the lock body, and the other end of the reset torsion spring 5 is inserted into the reset card slot 311 on the flipping member.

[0020] In addition, to improve the stability when the tipping tongue is caught by the flipping member, two mutually parallel limit sliding slots 211 are provided on the side of the tipping tongue 21, two flipping card slots 121 are provided on the right side plate 12 of the limit frame 1, and two flipping cross plates 321 are provided on the vertical plate 32 of the flipping member.

[0021] When the door is opened, the person who opens the door pulls the handle so that the handle drives the lock body driving gear in the driving device in the lock body to rotate, thereby causing the lock body driving gear to drive the lever arm in the unlocking lever to drive the lever to rotate around the unlocking column to move away from the limit frame, and when the lever is away from the limit frame, it will apply force to the column in the flip member to push the flip member to move in the direction away from the limit frame, thereby causing the flip cross plate in the flip member to slide out of the limit sliding groove on the flip tongue. At this time, pushing the door can cause the flip tongue to be flipped under force and slide out of the flip tongue accommodating groove on the door frame and retract into the limit frame, thereby opening the door. During the process of closing the door, when the door closer pulls the handle to make the door panel and the door frame buckle together, the bucket tongue slides out of the limit frame under the action of the reset spring and is inserted into the bucket tongue receiving groove on the door frame. At this time, the door closer releases the handle, and the lock body driving gear in the driving device rotates in the opposite direction to reset. The flip member moves toward the limit frame under the action of the reset torsion spring until the flip horizontal plate on the flip member is inserted into the limit sliding groove on the bucket tongue, so that the flip horizontal plate clamps the bucket tongue to prevent the bucket tongue from sliding out of the bucket tongue receiving groove. It can be seen that the lock body of the present invention is simple and convenient to operate when the door is not locked.

Claims

1. A lock body, characterized in that, The lock body comprises a limit frame, a flip tongue mechanism, a flip member, a reset torsion spring and an unlocking dial member, wherein the left side plate and the right side plate of the limit frame are clamped on both sides of the flip tongue slot on the side wall of the lock body, a sliding through hole is arranged on the limit plate of the limit frame, and a flip card slot is arranged on the right side plate of the limit frame close to the driving device in the lock body; The bucket tongue mechanism comprises a bucket tongue, a fixing part and a return spring, wherein the bucket tongue is provided with a limit slide groove on the right side surface of the right side plate of the limit frame, and the limit slide groove is opposite to the flipping slot; the fixing part comprises a fixing seat and a slide rod, the contact end of the fixing seat is rotatably contacted with the flipping end of the bucket tongue, and the free end of the slide rod is away from the contact end of the fixing seat and inserted into the sliding through hole; the return spring is sleeved on the slide rod and clamped between the fixing seat and the limit plate; The flip member comprises a bottom block, a vertical plate and a column, wherein the vertical plate is fixedly connected to the bottom block at the connecting end of the bottom block, the column is located at the top of the bottom block and close to the reset end of the bottom block, and the reset end of the bottom block is provided with a reset slot; a flip horizontal plate is provided on the side of the vertical plate away from the column, and the flip horizontal plate can pass through the flip slot and be inserted into the limit slide groove; The unlocking lever comprises a lever sleeve, a lever piece and a lever arm, wherein the lever piece and the lever arm are arranged on the lever sleeve, and a lever receiving groove is arranged between the lever piece and the lever arm; the lever sleeve is sleeved on the unlocking column in the lock body, and the lever piece is clamped between the vertical plate and the column, and the column is inserted in the lever receiving groove, and the free end of the lever arm extends toward the driving device and can drive the lever sleeve to rotate around the unlocking column under the drive of the driving device; The reset torsion spring is sleeved on the pull sleeve and pressed by the pull piece and the pull arm, and one end of the reset torsion spring is pressed against the side wall of the lock body, and the other end of the reset torsion spring is inserted into the reset slot on the flip member.

2. The lock body according to claim 1, characterized in that, Two mutually parallel limiting sliding grooves are arranged on the side of the flap tongue, two flipping slots are arranged on the right side plate of the limiting frame, and two flipping transverse plates are arranged on the vertical plate of the flipping member.

3. The lock body according to claim 2, characterized in that, The limiting sliding grooves are symmetrically arranged on both sides of the bucket tongue.

4. The lock body according to any one of claims 1-3, characterized in that, In the flip member, a top protrusion is arranged at the top of the vertical plate, and a bottom protrusion is arranged at the bottom of the vertical plate.

5. The lock body according to claim 4, characterized in that, The limiting frame is a U-shaped frame.

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