A lock and glass door capable of preventing the deadbolt from falling out

Abstract

The present invention discloses a lock and a glass door capable of preventing a deadbolt from falling out. The lock comprises: a lock body, a handle rotatably connected to the lock body, a lock core, a transmission mechanism arranged in the lock body, and a bolt mechanism movably penetrating the lock body and plugging and matching with a lock box; the transmission mechanism comprises: a handle toggle member that is reciprocatingly arranged and fixedly connected to the handle, a deadbolt toggle member that is reciprocatingly arranged and abutted against the handle toggle member, and a deadbolt fixing plate that is reciprocatingly connected to the deadbolt toggle member, wherein the deadbolt toggle member is slidably matched with the deadbolt fixing plate and a guide column is arranged on the deadbolt toggle member, and a slide groove is arranged on the deadbolt fixing plate, the slide groove comprises an initial position and a locking position, and the guide column slides back and forth in the slide groove. The present invention solves the problem of preventing the deadbolt from falling out when the door is closed quickly, and solves the problem of reduced unlocking performance after the handle is pressed down for a long time.

Description

Technical Field

[0001] The invention relates to the technical field of door and window hardware accessories, in particular to a lock and a glass door. Background Art

[0002] Most of the mechanical locks for glass doors on the market are an integrated structure of the lock and the panel, which limits the flexibility of replacing the panel handle assembly. To solve this problem, the prior art has developed a split glass door lock body, which is easy to install and can meet the combination requirements of different customers for different styles of panels.

[0003] For split glass door locks, on the one hand, when the door leaf is in the unlocked state, the lock tongue is easy to fall out of the inner cavity of the lock body due to the inertia force of the fast closing of the door when the door leaf is in the unlocked state. On the other hand, since the handle has both the push-down unlocking function and the lift-up locking function, the handle with such functions is prone to drooping after long-term use, which will not only reduce the push-down unlocking performance, but also affect the appearance. Summary of the invention

[0004] The purpose of the present invention is to provide a lock and a glass door capable of preventing the deadbolt from falling out. The present invention solves the problem of preventing the deadbolt from falling out when the door is closed quickly, and solves the problem of decreased unlocking performance when the handle is pressed down.

[0005] In order to solve the above problems, the first aspect of the present invention provides a lock capable of preventing a deadbolt from falling out, which cooperates with a lock box on a door frame, comprising:

[0006] A lock body, a handle and a lock core rotatably connected to the lock body, a transmission mechanism disposed in the lock body, and a lock tongue mechanism movably disposed through the lock body and plugged into a lock box;

[0007] The transmission mechanism includes: a handle toggle member that is reciprocatingly arranged and fixedly connected to the handle, a deadbolt toggle member that is reciprocatingly arranged and arranged adjacent to the handle toggle member, and a deadbolt fixing plate that is reciprocatingly connected to the deadbolt toggle member and fixedly connected to the bolt mechanism, wherein the deadbolt toggle member is slidably matched with the deadbolt fixing plate and a guide column is provided on the deadbolt toggle member, and a slide groove is provided on the deadbolt fixing plate, the slide groove includes an initial position and a locking position that are substantially perpendicular to the slide groove, and the guide column reciprocates in the slide groove to switch between the initial position and the locking position;

[0008] When the door leaf is in the locked state, the lock core is rotated to drive the deadbolt toggle member to rotate, so that the guide column slides from the locked position to the initial position, and the deadbolt fixing plate is driven to drive the deadbolt mechanism to move away from the lock box, so that the deadbolt mechanism returns from the lock box to the lock body, completing the unlocking;

[0009] When the door leaf is in the unlocked state, lift the handle to drive the handle toggle piece to rotate, drive the deadbolt toggle piece to rotate, make the guide column slide from the initial position to the locked position, and drive the deadbolt fixing plate to drive the deadbolt mechanism to move toward the lock box, so that the deadbolt mechanism and the lock box are plugged in and matched to complete the locking.

[0010] The above technical solution of the present invention has the following beneficial technical effects: the present invention achieves the problem of preventing the lock tongue from falling out when the door is closed quickly by setting a hook groove; on the other hand, a limit column is set to prohibit the handle from being pressed down to unlock, thereby solving the problem of decreased performance of the handle being pressed down to unlock.

[0011] According to another aspect of the present invention, there is provided a glass door, comprising:

[0012] Door frame;

[0013] The door leaf is rotatably connected to the door frame;

[0014] As in the above lock, the lock body is fixed to the door leaf; and

[0015] The lock box is installed on the door frame. The lock box is provided with a lock tongue groove. The lock tongue mechanism can be movably plugged into the lock tongue groove to lock or unlock the door leaf and the door frame.

[0016] The above technical solution of the present invention has the following beneficial technical effects: the operation of switching from unlocking to locking of the door leaf and the door frame is convenient and quick; the transmission of the transmission mechanism can be carried out smoothly, thereby improving space utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the cooperation between a glass door frame and a door leaf in one embodiment;

[0018] Figure 2 Schematic diagram of the combination of a lock in one embodiment (the door leaf is in unlocked state at this time);

[0019] Figure 3 for Figure 2 An exploded view of a portion of the lock shown;

[0020] Figure 4a , Figure 4b for Figure 3 A schematic diagram of the structure of a deadbolt toggle member and a deadbolt fixing plate in the lock shown;

[0021] Figure 5 for Figure 2 A front view of

[0022] Figure 6 for Figure 5 A schematic diagram of the side structure of

[0023] Figure 7Schematic diagram of the combination of the lock in one embodiment (the door leaf is in the incompletely locked state 1);

[0024] Figure 8 Schematic diagram of the combination of the lock in one embodiment (the door leaf is in the second state of not being completely locked);

[0025] Fig. 9 Schematic diagram of the combination of the lock in one embodiment (the door leaf is in a completely locked state at this time);

[0026] Fig.10 for Fig. 9 Schematic diagram of the side structure.

[0027] Reference numerals:

[0028] 10. Lock; 20. Central axis; 60. Door leaf; 70. Door frame; 80. Lock box; 81. Lock tongue groove; 100. Lock body; 101. Receptacle; 110. Limiting column; 111. First limiting column; 112. Second limiting column; 120. Positioning block; 121. Slot; 200. Handle; 300. Transmission mechanism; 310. Handle toggle member; 311. First body; 312. First extension; 313. Second extension; 320. Deadbolt toggle member; 321. Guide column; 322. Protrusion; 323. Hook-shaped portion; 324. Connecting portion; 330. Deadbolt fixing plate; 331. Slide groove; 331a , initial position; 331b, locking position; 332, positioning groove; 333, guide groove; 334, hook groove; 340, lock core; 340a, lock hole; 341, second body; 342, third extension; 400, lock tongue mechanism; 410, dead tongue; 411, mounting groove; 412, inner cavity; 420, compensation assembly; 421, compensation strip; 422, support rod; 423, second elastic member; 430, hook tongue assembly; 431, hook tongue; 432, third elastic member; 500, first elastic member; 510, first torsion portion; 520, second torsion portion; 530, third torsion portion; 600, handle return spring. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0030] See also Figure 1 , Figure 1The schematic diagram of a lock 10 capable of preventing a deadbolt from falling out in one embodiment of the present invention is shown. The lock 10 is installed on a door leaf 60 and plugged into a lock box 80 on a door frame 70 to lock the door leaf 60 to the door frame 70. Figure 2 The lock 10 includes a lock body 100, a handle 200, a lock core 340, a transmission mechanism 300 and a lock tongue mechanism 400. The lock body 100 is fixedly connected to the door leaf 60, the handle 200 and the lock core 340 are rotatably connected to the lock body 100, the transmission mechanism 300 is arranged in the lock body 100 and is fixedly connected to the lock tongue mechanism 400, and the lock tongue mechanism 400 can be movably penetrated through the lock body 100 and plugged into the lock box 80.

[0031] By lifting the handle 200, the handle 200 drives the transmission mechanism 300 to rotate, and the transmission mechanism 300 can drive the bolt mechanism 400 to slide in the direction close to the lock box 80, and push the bolt mechanism 400 into the lock box 80, so as to lock the door leaf 60 to the door frame 70. When the handle 200 is located indoors, the lock 10 can be switched from the unlocked state to the locked state by lifting the handle 200, and the process of fast locking from indoors can be completed; when the handle 200 is located outdoors, the lock 10 can be switched from the unlocked state to the locked state by lifting the handle 200, and the process of locking from outside the door can be completed.

[0032] In the specific implementation, please refer to Figure 2 The lock body 100 is a carrier of the handle 200, the lock core 340, the transmission mechanism 300 and the bolt mechanism 400. The lock body 100 is fixedly connected to the door leaf 60. The lock body 100 is provided with a cavity 101. The transmission mechanism 300 and the bolt mechanism 400 are both arranged in the cavity 101. With this structural arrangement, it is convenient to disassemble and assemble the lock 10, and the lock body 100 can be replaced in time to be assembled with different handles 200, transmission mechanisms 300 and bolt mechanisms 400.

[0033] In this embodiment, the lock body 100 is rectangular in shape and is fixedly connected to the door leaf 60 by bolts. The bolt mechanism 400 is movably arranged in the cavity 101 of the lock body 100. When the handle 200 is lifted, the handle 200 can drive the bolt mechanism 400 to move to the side close to the lock box 80 outside the cavity 101 and plug and match with the lock box 80, thereby locking the door leaf 60. In this embodiment, the function of quick locking by lifting the handle in reverse is added to solve the problem of cumbersome operation of ordinary glass door locks.

[0034] Please refer to Figure 2The transmission mechanism 300 includes a handle toggle 310, a deadbolt toggle 320 and a deadbolt fixing plate 330. The handle toggle 310 can reciprocate and is fixedly connected to the handle 200. The handle toggle 310 and the deadbolt toggle 320 are arranged adjacent to each other. The deadbolt toggle 320 is reciprocally connected to the lock body 100. The deadbolt fixing plate 330 is fixedly connected to the bolt mechanism 400. The deadbolt fixing plate 330 and the deadbolt toggle 320 are movably connected. In this embodiment, the handle toggle 310 is fixedly connected to the handle 200 through a square shaft. In other embodiments, the fixed connection of the handle 200 may be achieved without a square shaft, for example, by a special-shaped shaft.

[0035] Specifically in one embodiment, please refer to Figure 3 , Figure 4a and Figure 4b The deadbolt toggle member 320 is provided with a guide column 321, combined with Figure 3 and Figure 7 As shown, the deadlock fixing plate 330 is provided with a slide groove 331, and the slide groove 331 includes an initial position 331a and a locking position 331b. The guide column 321 can slide back and forth in the slide groove 331 and switch between the initial position 331a and the locking position 331b.

[0036] When the door leaf 60 and the door frame 70 are in the unlocked state, Figure 5 As shown, the handle 200 is lifted by an external force (the handle 200 is moved along Figure 7 The handle 200 drives the handle toggle member 310 to rotate counterclockwise from the start position (i.e. Figure 6 The handle toggle member 310 is rotated according to the current state of the handle 200, which also corresponds to the horizontal state of the handle 200. When in the starting position, the first protruding end 312 of the handle toggle member 310 abuts against the protrusion 322 of the dead bolt toggle member 320; during the rotation of the handle toggle member 310, the handle toggle member 310 always maintains abutment with the dead bolt toggle member; the rotation of the handle toggle member 310 drives the dead bolt toggle member 320 to rotate clockwise, so that the guide column 321 of the dead bolt toggle member 320 slides from the initial position 331a to the locking position 331b, and drives the dead lock fixing plate 330 to drive the lock bolt mechanism 400 to slide toward the side close to the lock box 80, so that the dead bolt 410 is inserted into the lock box 80, as shown in FIG. Fig. 9 As shown, the door leaf 60 and the door frame 70 are switched to a completely locked state, and the operation is convenient and quick.

[0037] When the door leaf 60 and the door frame 70 are in a completely locked state, Fig. 9As shown, the mechanical key is inserted into the lock core 340 and rotates the lock core 340, driving the deadbolt toggle member 320 to rotate, and the guide column 321 of the deadbolt toggle member 320 slides from the locking position 331b to the initial position 331a, and drives the deadbolt fixing plate to drive the deadbolt mechanism 400 to move to a side away from the lock box 80, so that the deadbolt mechanism 400 returns from the lock box 80 to the lock body 100, completing the unlocking, see Figure 5 , thereby switching the door leaf 60 and the door frame 70 to a fully unlocked state, making the operation convenient and quick.

[0038] It should be pointed out that if Figure 2 As shown, the deadbolt toggle member 320 and the deadbolt fixing plate 330 are arranged in a stacked manner, and the stacked arrangement can be understood as being stacked and arranged in parallel.

[0039] In this embodiment, please refer to Figure 4a and Figure 4b The deadbolt toggle 320 has three protruding ends, wherein a guide column 321 is convexly provided on one side (rear side) of the deadbolt toggle 320 close to the deadbolt fixing plate 330, and a protrusion 322 is convexly provided on one end of the deadbolt toggle 320 away from the guide column 321, and the guide column 321 and the protrusion 322 are longitudinally staggered, and the longitudinal stagger can be understood as the line connecting the protrusion 322 and the guide column 321 forms an offset angle with the longitudinal direction. Through this arrangement, the transmission between the handle toggle 310 and the deadbolt toggle 320, and between the deadbolt toggle 320 and the deadbolt fixing plate 330 can be carried out smoothly, and the space utilization rate is effectively improved.

[0040] In some embodiments, the handle toggle 310 includes a first body 311 and a first extension 312 extending radially along the first body 311. In this embodiment, the first body 311 is connected to the handle 200 via a square shaft, and rotating the handle 200 can drive the first extension 312 to rotate, so that the first extension 312 drives the tongue toggle 320 to rotate.

[0041] In one embodiment, the protrusion 322 is cylindrical, and the side of the first extension 312 close to the guide column 321 is arc-shaped. This arrangement makes it difficult to scratch the protrusion 322 and the first extension 312, so that the deadbolt toggle 320 and the handle toggle 310 can better cooperate. In other embodiments, the protrusion 322 can also be prism-shaped or other irregular shapes.

[0042] When in unlocked state, refer to Figure 5 , the handle toggle member 310 is in the starting position, at this time, the first extension portion 312 and the protrusion 322 are both in the starting position, at this time, the first extension end 312 (in the starting position) of the handle toggle member 310 is in contact with the protrusion 322 (in the starting position) of the tongue toggle member 320, and at this time, the guide column 321 is in the initial position 331a of the guide groove 333.

[0043] When in full lock state, see Fig. 9 , the first protruding portion 312 is reset to the starting position (the purpose is to reset the handle 200 to a horizontal state), and the protrusion 322 of the deadbolt actuator 320 is in the abutment position. At this time, the first protruding end 312 (located in the starting position) of the handle actuator 310 and the protrusion 322 (located in the abutment position) of the deadbolt actuator 320 are not abutted, and the guide column 322 of the deadbolt actuator 320 is in the locking position 331b.

[0044] At the moment of locking, refer to Figure 8 In the incompletely locked state, the first extension portion 312 is in the abutment position (corresponding to the raised state of the handle 200), and the projection 322 of the deadbolt toggle member 320 is also in the abutment position. At this time, the first extension end 312 of the handle toggle member 310 and the projection 322 of the deadbolt toggle member 320 are still in abutment. After the instantaneous locking is completed, refer to Fig. 9 Due to the action of the handle reset spring 600, the handle reset spring 600 drives the handle toggle member 310 to reset to the start position, that is, drives the first extension portion 312 of the handle toggle member to reset from the abutment position to the start position.

[0045] In some embodiments, the handle toggle 310 further includes a second extension 313 and a third extension 314 spaced apart therefrom, the second extension 313 and the third extension 314 extending radially along the first body 311 and spaced apart from the first extension 312. In this embodiment, a limiting column 110 is provided on the lock body 100, and when the handle toggle 310 is in the start position, the second extension 313 abuts against the limiting column 110, and when the handle 200 is lifted, the second extension 313 rotates counterclockwise from the start position away from the limiting column 110 abutting therewith, and the third extension 314 also rotates counterclockwise to abut against the limiting column 110, restricting the handle toggle 310 from continuing to rotate, so as to complete the lifting and locking action of the handle 200.

[0046] After the handle 200 completes the upward locking action, the handle toggle member 310 is subjected to the rebound force of the handle reset spring 600, which causes the handle toggle member 310 to be in the starting position, that is, the handle 200 is reset to a horizontal state, that is, the first extension portion 312, the second extension portion 313, and the third extension portion 314 are all reset to the starting position, and the deadbolt toggle member 320 remains in the abutment position.

[0047] In one embodiment, the number of the limiting column 110 is one, and the limiting column 110 is located between the second extension portion 313 and the third extension portion 314. When the door leaf 60 is in the unlocked state, as shown in FIG. Figure 5As shown, the limiting column 110 is in contact with the second extension 313, and the guide column 321 is located at the initial position 331a, in order to maintain the handle 200 in a horizontal state so that the handle 200 does not sag. Fig. 9 As shown, the handle toggle member 310 rotates to make the limiting column 110 abut against the third extension portion 314, and the guide column 321 slides from the initial position 331a to the locking position 331b, so as to complete the lifting and locking action, that is, to complete the door locking action by lifting the handle 200.

[0048] In some embodiments, please refer to Figure 4a and Figure 4b The slide groove 331 includes a positioning groove 332, a guide groove 333 and a hook groove 334 which are connected in sequence. In this embodiment, the guide groove 333 is inclined relative to the horizontal line, the positioning groove 332 is at an angle with the guide groove 333 and is located at the locking position 331b, and the hook groove 334 is substantially perpendicular to the guide groove 333 and is located at the initial position 331a.

[0049] refer to Figure 2 and Figure 5 When the door leaf 60 is in the unlocked state, the guide post 321 is held in the hook groove 334. In the unlocked state, in order to prevent the deadbolt 410 from falling out due to inertia when the door is closed quickly, the hook groove 334 is provided. Specifically, when the deadbolt is fully retracted into the lock housing (i.e., in the unlocked state, see Figure 5 ), the guide post 321 of the deadbolt toggle member 320 slides into the hook groove 334 in the guide groove 333 of the deadbolt fixing plate 330, limiting the horizontal movement of the deadbolt fixing plate 330, that is, effectively preventing the deadbolt 410 from running out of the lock body 100 in the open state. When an external force (generally rotating the lock cylinder 340) rotates the deadbolt toggle member 320, its guide post 321 just leaves the hook groove 334 at an arc angle and slides in the guide groove 333, thereby driving the deadbolt 410 to move in the direction close to the lock box 80.

[0050] Please combine Figure 7 , the handle 200 is lifted by an external force, driving the handle toggle member 310 along Figure 7 The handle member 310 rotates counterclockwise in the direction of the arrow shown. Since the handle member 310 and the tongue member 320 are in contact with each other in the unlocked state, the handle member 310 rotates to drive the tongue member 320 to rotate in the clockwise direction (with the tongue member 320 rotating counterclockwise). Figure 7 The guide post 321 is rotated in the direction opposite to the arrow direction shown in the figure, so that the guide post 321 slides from the hook groove 334 (i.e. the initial position 331a) along the guide groove 333 into the positioning groove 332 (i.e. the locking position 331b), so that the door leaf 60 is in a locked state. Fig. 9 shown.

[0051] Further, in this embodiment, reference Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 , the transmission mechanism 300 also includes a handle reset spring 600, and the two ends of the handle reset spring 600 are respectively connected to the lock body 100 and the handle toggle member 310. In this way, after the handle 200 is lifted up to lock the door leaf 60, the handle 200 is released, and the handle 200 and the handle toggle member 310 can be restored to the initial state (starting position) by the torque of the handle reset spring 600. The initial state is that the handle reset spring 600 is in a state of no twisting. At this time, if Fig. 9 As shown, the second extending end 313 of the handle toggle member 310 abuts against the limiting column 110. At this time, applying downward pressure on the handle cannot rotate the handle 200 and unlock the door leaf 60. The purpose is to prevent the door leaf 60 from being opened arbitrarily by pressing down the handle 200, affecting the safety of use, and to prevent the handle 200 from being pressed down for a long time, causing the handle 200 to sag.

[0052] In some embodiments, please refer to Figure 5 The lock 10 further comprises a first elastic member 500, the two ends of which are respectively connected to the lock body 100 and the deadbolt toggle member 320. In this embodiment, when the handle 200 is lifted, the guide post 321 can slide from the hook groove 334 (i.e., the initial position 331a) into the guide groove 333, so that the first elastic member 500 is twisted. Figure 8 At this time, the dead tongue 410 is inserted into the lock box 80 but is not locked. The first elastic member 500 uses torque to enable the guide column 321 to slide from the guide groove 333 into the positioning groove 332 (i.e., the locking position 331b). At this time, the dead tongue 410 is locked with the lock box 80. Fig. 9 That is, the guide column 321 can slide from the hook groove 334 into the guide groove 333 by external force, and after the external force is removed, the first elastic member 500 can slide the guide column 321 from the guide groove 333 into the positioning groove 332 by torsion to achieve locking.

[0053] In some embodiments, please refer to FIG. 4 , the deadbolt actuator 320 has three protruding ends, and a connecting portion 324 is protruded from the other end away from the guide post 321 .

[0054] For example, see Figure 3 , Figure 6 , Figure 7 , Figure 8The first elastic member 500 is a three-coil spring. Specifically, the first elastic member 500 includes a first torsion portion 510, a second torsion portion 520 and a third torsion portion 530 which are connected to each other. The second torsion portion 520 is located between the first torsion portion 510 and the first torsion portion 510. The first torsion portion 510 and the second torsion portion 520 are fixedly connected to the lock body 100, and the third torsion portion 530 is fixedly connected to the connecting portion 324 of the deadbolt actuator 320.

[0055] In this embodiment, see Figure 5 When the first elastic member 500 is rotated by an external force (generally rotating the lock core 340), the guide column 321 thereof just disengages from the hook groove 334 at an arc angle. At the same time, the spring force of the first elastic member 500 drives the dead tongue toggle member 320 to disengage from the hook groove 334 and slide into the guide groove 333, thereby driving the dead tongue 410 to move toward the direction close to the lock box 80.

[0056] In other embodiments, the first elastic member 500 may not be provided, and the handle 200 may be directly lifted by external force to make the guide column 321 slide from the undercut groove 334 along the guide groove 333 into the positioning groove 332 to achieve locking.

[0057] After the door leaf 60 is locked from the inside by lifting the handle 200, the lock core 340 can be rotated so that the lock core 340 can abut against the deadbolt actuator 320, driving the deadbolt actuator 320 to rotate, causing the guide column 321 to slide from the locking position 331b to the initial position 331a, and driving the deadbolt fixing plate 330 to drive the deadbolt 410 to slide back into the cavity 101, thereby switching the door leaf 60 from a locked state to an unlocked state.

[0058] In some embodiments, a lock hole 340a is provided on the lock core 340, and a mechanical key can be inserted into the lock hole 340a to rotate the lock core 340. The lock core 340 includes a second body 341 and a third extension portion 342 extending radially along the second body 341, and a hook portion 323 is provided at one end of the deadbolt toggle member 320 away from the guide column 321. In this embodiment, when the lock core 340 is rotated, the third extension portion 342 can engage the hook portion 323 and drive the deadbolt toggle member 320 to rotate, which is easy to operate.

[0059] Please refer to Figure 3 The bolt mechanism 400 further includes a compensation component 420, which is sandwiched between the dead bolt 410 and the lock box 80 to improve the sealing of the dead bolt 410 and the lock box 80 and prevent the dead bolt 410 from shaking in the lock box 80 and making noise. In some embodiments, the lock body also adds a gap compensation function to prevent the door leaf from shaking after being locked.

[0060] Specifically, in one embodiment, the compensation assembly 420 includes a compensation bar 421, a support rod 422, and a second elastic member 423. The compensation bar 421 is protruding from the side of the dead tongue 410. The first end of the support rod 422 is fixedly connected to the compensation bar 421. The second end of the support rod 422 is movably connected to the lock body 100 and fixedly connected to the dead lock fixing plate 330. The second elastic member 423 is sleeved on the support rod 422 and abuts between the end surface of the dead tongue 410 and the lock body 100. When the dead tongue 410 slides out of the cavity 101, the compensation bar 421 will also extend out of the cavity 101 under the action of the second elastic member 423, and be clamped between the dead tongue 410 and the lock box 80.

[0061] In some embodiments, please refer to Figure 3 A positioning block 120 is provided in the lock body 100 , and a slot 121 is provided on the positioning block 120 . The second end of the support rod 422 is inserted into the slot 121 so that the second end of the support rod 422 can slide relative to the slot 121 .

[0062] In some embodiments, a mounting groove 411 is provided on the side of the dead tongue 410, and the compensation strip 421 is connected to the support rod 422 and is clamped in the mounting groove 411. When the dead tongue 410 slides out of the cavity 101, the compensation strip 421 also extends out of the cavity 101 synchronously with the dead tongue 410 under the action of the second elastic member 423.

[0063] For further information, please refer to Figure 3 The locking tongue mechanism 400 further includes a hook tongue assembly 430 , which can be movably passed through the upper end surface and the lower end surface of the dead tongue 410 .

[0064] In one embodiment, the hook tongue assembly 430 includes a dead tongue 410 having an inner cavity 412, two hook tongues 431 and a third elastic member 432 disposed in the hook tongue 431. Figure 2 The two hook tongues 431 are rotatably connected to the inner cavity 412 of the dead tongue 410, and the two third elastic members 432 are respectively held between the two hook tongues 431. When the third elastic member 432 is in a natural state, the two hook tongues 431 are respectively penetrated and exposed from the upper end surface and the lower end surface of the dead tongue 410. When the third elastic member 432 is in a compressed state, the two hook tongues 431 are accommodated in the inner cavity 412 by relying on the steering control force of the spring of the third elastic member 432.

[0065] The hook tongue 431 has a first stopper 431a and a second stopper 431b. Figure 5 , the second stopper 431b protrudes from the upper and lower end surfaces of the dead tongue 410, and the first stopper 431a is hidden in the inner cavity 412 of the dead tongue 410. In the fully locked state, see Fig. 9, the second stopper 431b protrudes from the upper end surface and the lower end surface of the tongue 410. In this embodiment, the third elastic member 432 is a spring, and the hook tongue 431 controls the extension and retraction of the second stopper 431b by the steering of the spring force. In this embodiment, the extension and retraction of the second stopper 431b can be achieved only by the spring, and no additional components are required, thereby reducing costs.

[0066] See also Figure 7 When the handle 200 is lifted, the linked handle toggle plate 310 rotates counterclockwise, and the deadbolt toggle member 320 is driven to rotate on the central shaft 20. At this time, the guide column 321 of the deadbolt toggle member 320 rotates out of the hook groove 334 and drives on the guide groove 333, so that the deadbolt toggle member 320 moves forward under the guidance of the central shaft 20, and drives the entire deadbolt 410 to be slowly driven outward.

[0067] See also Figure 8 , the handle toggle member 310 rotates to the limit column 110 and stops rotating. At this time, the second stop portion 431b of the hook tongue 431 hits the lock body 100, and the force direction changes under the action of the spring force inside it, so that the hook tongue 431 can be driven out from the dead tongue. At this time, the dead tongue 410 has not been completely driven out.

[0068] See also Fig. 9 Under the elastic force of the three-turn spring, the deadbolt toggle member 320 continues to rotate until its guide column 321 slides into the positioning groove 332 of the deadbolt fixing plate 330. At this time, the deadbolt 410 is fully driven out, that is, in a fully locked state.

[0069] It is understandable that if Figure 1 As shown, the lock box 80 is provided with a lock tongue groove 81. When the door leaf 60 is in an unlocked state, the dead tongue 410 is located in the cavity 101 of the lock body 100, and the lock body 100 abuts against the hook tongue 431 so that the hook tongue 431 is accommodated in the inner cavity 412 of the dead tongue 410; when the door leaf 60 is switched to a locked state, the dead tongue 410 drives the hook tongue 431 to slide out of the cavity 101 but is not inserted into the lock tongue groove 81, and the hook tongue 431 is penetrated and exposed at the end surface of the dead tongue 410. When the dead tongue 410 drives the hook tongue 431 to slide into the lock tongue groove 81, the hook tongue 431 slides over the groove wall of the lock tongue groove 81 and is exposed outside the end surface of the hook tongue 431. At this time, the hook tongue 431 protrudes out of the inner cavity 412 and is clamped on the groove wall of the lock tongue groove 81, which can prevent prying.

[0070] Please refer to Figure 1 The glass door in one embodiment includes a door leaf 60, a door frame 70, a lock box 80 and the above-mentioned lock 10. The door leaf 60 is rotatably connected to the door frame 70, the lock body 100 of the lock 10 is fixed to the door leaf 60, the lock box 80 is installed on the door frame 70, and the lock tongue mechanism 400 can be movably inserted into the lock tongue groove 81 to lock or unlock the door leaf 60 and the door frame 70.

[0071] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or the equivalent forms of such scope and boundaries.

Claims

1. A lock capable of preventing a deadbolt from falling out, which cooperates with a lock box on a door frame, characterized in that: include: A lock body, a handle and a lock core rotatably connected to the lock body, a transmission mechanism disposed in the lock body, and a lock tongue mechanism movably disposed through the lock body and plugged into a lock box; The transmission mechanism comprises: a handle toggle member which is arranged to rotate reciprocatingly and fixedly connected to the handle, a deadbolt toggle member which is arranged to rotate reciprocatingly and adjacent to the handle toggle member, and a deadbolt fixing plate which is reciprocatingly connected to the deadbolt toggle member and fixedly connected to the bolt mechanism, wherein the deadbolt toggle member is slidably matched with the deadbolt fixing plate and a guide column is provided on the deadbolt toggle member, a slide groove is provided on the deadbolt fixing plate, the slide groove comprises an initial position and a locking position which are substantially perpendicular to the slide groove, and the guide column slides reciprocatingly in the slide groove to switch between the initial position and the locking position; The slide groove comprises a clamping groove, a guide groove and a hook groove which are connected in sequence, the guide groove is arranged obliquely relative to the horizontal line, the clamping groove forms an angle with the guide groove and is located at the locking position, and the hook groove is substantially perpendicular to the guide groove and is located at the initial position; When the door leaf is in a locked state, the lock core is rotated to drive the deadbolt toggle member to rotate, so that the guide column slides from the locked position to the initial position, and the deadbolt fixing plate is driven to drive the deadbolt mechanism to move away from the lock box, so that the deadbolt mechanism returns from the lock box to the lock body, thereby completing unlocking; When the door leaf is in an unlocked state, the handle is lifted to drive the handle toggle member to rotate, and the deadbolt toggle member to rotate, so that the guide column slides from the initial position into the locked position, and the deadbolt fixing plate is driven to drive the deadbolt mechanism to move toward the lock box, so that the deadbolt mechanism is plugged into and matched with the lock box to complete the locking.

2. The lock according to claim 1, characterized in that: The dead bolt actuator has a protruding block at one end away from the guide column, and the handle actuator includes a first body and a first extension portion extending radially along the first body, the first body is connected to the handle, and rotating the handle can drive the first extension portion to rotate, so that the first extension portion abuts against the protrusion and drives the dead bolt actuator to rotate.

3. The lock according to claim 2, characterized in that: The handle toggle member further includes a second extension portion and a third extension portion spaced apart therefrom, the second extension portion and the third extension portion extend radially along the first body and are spaced apart from the first extension portion, a limiting column is provided on the lock body, and the second extension portion abuts against the limiting column to keep the handle in a horizontal state; When the handle is lifted, the second extension moves away from the limiting column abutting against it, and the third extension approaches the limiting column and can abut against the limiting column to limit the handle toggle member from continuing to rotate. At this time, the handle is converted from a horizontal balance state to a locked state.

4. The lock according to claim 1, characterized in that: It also includes a first elastic member, which includes a first torsion portion, a second torsion portion and a third torsion portion that are interconnected, the second torsion portion is located between the first torsion portion and the second torsion portion, the first torsion portion and the second torsion portion are connected to the lock body, and the third torsion portion is fixedly connected to the deadbolt actuator.

5. The lock according to claim 1, characterized in that: When the key is inserted into the lock core and the lock core is rotated, the lock core can engage with the dead bolt actuator, driving the dead bolt actuator to rotate, causing the guide column to slide from the locking position to the initial position, and driving the dead bolt fixing plate to drive the dead bolt to slide in the direction away from the lock box, so that the dead bolt and the lock box are unlocked.

6. The lock according to claim 5, characterized in that: The lock core comprises a second body and a third extension portion extending radially along the second body, and an end of the deadbolt actuator away from the guide column is provided with a hook-shaped portion for clamping the third extension portion.

7. The lock according to claim 1, characterized in that: The locking tongue mechanism includes a hook tongue assembly, which includes: a dead tongue with an inner cavity, two hook tongues rotatably connected to both sides of the inner cavity of the dead tongue, and a third elastic member arranged in the hook tongue, the third elastic member is supported between the two hook tongues, when the third elastic member is in a natural state, the two hook tongues are respectively penetrated and exposed at two end surfaces of the dead tongue, and when the third elastic member is in a compressed state, the two hook tongues can be accommodated in the inner cavity.

8. The lock according to claim 1, characterized in that: The lock tongue mechanism also includes a compensation component, which includes a compensation strip, a support rod and a second elastic member. The compensation strip is connected to the side of the dead tongue and is movably arranged on the lock body. The first end of the support rod is fixedly connected to the compensation strip, and the second end of the support rod is movably connected to the lock body. The second elastic member is sleeved on the support rod and is held between the end surface of the dead tongue and the lock body.

9. A glass door, characterized in that: include: Door frame; A door leaf, rotatably connected to the door frame; The lock according to any one of claims 1 to 8, wherein the lock body is fixed to the door leaf; as well as A lock box is installed on the door frame. The lock box is provided with a lock tongue groove. The lock tongue mechanism can be movably plugged into the lock tongue groove to lock or unlock the door leaf and the door frame.

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