Lock core linkage mechanism and door lock

Abstract

The present invention provides a lock core linkage mechanism, comprising a first transmission member, a second transmission member, a first lock tongue and a housing assembly, wherein the first lock tongue is slidably arranged on the housing assembly; the first transmission member comprises a first toggle portion, the second transmission member comprises a second toggle portion, the first transmission member is used to cooperate with the lock core dial wheel, and is movably cooperated with the second transmission member through the first toggle portion, and the second toggle portion is movably cooperated with the first lock tongue; the first transmission member can drive the second transmission member to move, and the second transmission member drives the first lock tongue to extend or retract into the housing assembly through the second toggle portion. The lock core linkage mechanism provided by the present invention has the characteristics of simple structure, reliable connection and cooperation, good durability and long service life, the lock core linkage mechanism is more sensitive to response, and has higher force transmission efficiency and stability, and can overcome the defects of jamming, response delay and large movement resistance after long-term use, and avoid movement failure caused by wear of the lock core linkage mechanism or poor assembly between components.

Description

Technical Field

[0001] The present invention relates to the technical field of locks, and in particular to a lock core linkage mechanism and a door lock. Background Art

[0002] At present, various types of door locks on the market have problems such as complex structure, difficult assembly and maintenance, high manufacturing cost and short service life. In particular, the transmission mechanism that cooperates with the lock core will become stuck, respond slowly, and feel blocked when moving after long-term use, which will cause wear of the internal components of the door lock and poor assembly between components, and then cause movement and transmission failure. Summary of the invention

[0003] In view of this, the present invention provides a lock core linkage mechanism, including a first transmission member, a second transmission member, a first lock tongue and a housing assembly, wherein the first lock tongue is slidably arranged on the housing assembly; the first transmission member includes a first toggle portion, and the second transmission member includes a second toggle portion. The first transmission member is used to cooperate with the lock core dial wheel, and is movably cooperated with the second transmission member through the first toggle portion, and the second toggle portion is movably cooperated with the first lock tongue; the first transmission member can drive the second transmission member to move, and the second transmission member drives the first lock tongue to extend or retract into the housing assembly through the second toggle portion.

[0004] The lock core linkage mechanism provided by the present invention has the characteristics of simple structure, reliable connection and matching, good durability and long service life. The lock core linkage mechanism responds more sensitively to the power input of the lock core assembly, has higher force transmission efficiency and stability, and can overcome the defects of jamming, response delay and large movement resistance after long-term use, thereby avoiding movement failure caused by wear of the lock core linkage mechanism or poor assembly between components.

[0005] In one embodiment, the first driving portion includes a first driving claw and a second driving claw, a first gap is provided between the first driving claw and the second driving claw, and the second transmission member includes a first force transmission portion provided in the first gap; the first transmission member can abut against the first force transmission portion through the first driving claw and drive the second transmission member to move in a positive direction so that the first locking tongue extends out of the housing assembly; or, abut against the first force transmission portion through the second driving claw and drive the second transmission member to move in a reverse direction so that the first locking tongue is retracted into the housing assembly.

[0006] With such arrangement, the first force transmission part realizes the positive or reverse driving of the second transmission part by the first transmission member by selectively abutting against the first pusher claw and the second pusher claw. The first force transmission part is arranged between the first pusher claw and the second pusher claw, so that the movable cooperation between the first driving part and the second transmission member is reliable, which can prevent the connection failure between the first transmission member and the second transmission member and thus prevent the interruption of power transmission.

[0007] In one embodiment, the first transmission member further includes a third pawl and a fourth pawl, and a second gap is provided between the third pawl and the fourth pawl for the lock cylinder dial wheel to extend into; the third pawl can abut against the lock cylinder dial wheel and, driven by the lock cylinder dial wheel, cause the first transmission member to move forward, and the fourth pawl can abut against the lock cylinder dial wheel and, driven by the lock cylinder dial wheel, cause the first transmission member to move reversely.

[0008] With this arrangement, the lock core dial wheel can form an active fit with the first transmission member between the third dial claw and the fourth dial claw, and the lock core dial wheel can drive the first transmission member in a forward or reverse direction by selectively abutting against the third dial claw and the fourth dial claw.

[0009] In one embodiment, the first finger, the second finger, the third finger and the fourth finger are integrally forged.

[0010] With this arrangement, the first, second, third and fourth claws have higher rigidity and strength, further improved load-bearing performance, and are less likely to suffer from wear, deformation or strength damage, which is beneficial to improving the force transmission performance and service life of the lock core linkage mechanism.

[0011] In one embodiment, the first lock tongue includes a first matching portion and a second matching portion, and the second transmission member is rotatably connected to the shell assembly; the second toggle portion can abut the first matching portion and positively toggle the first lock tongue so that the first lock tongue extends out of the shell assembly; or, abut the second matching portion and reversely toggle the first lock tongue so that the first lock tongue retracts into the shell assembly.

[0012] With such a configuration, the second toggle portion realizes the forward or reverse toggle of the first lock tongue by selectively toggling the first matching portion and the second matching portion, that is, switching the coordination between the second toggle portion and the first matching portion or the second matching portion; the first matching portion and the second matching portion respectively bear the toggle force of the second toggle portion when the second transmission member is toggled forward and reversely, thereby optimizing the stress cycle characteristics of the first matching portion and the second matching portion and reducing the probability of fatigue damage to the first matching portion and the second matching portion.

[0013] In one embodiment, the first lock tongue is provided with a toggle groove, which includes a first toggle section, a first stop section and a second stop section which are interconnected; the second toggle section can rotate relative to the shell assembly in the toggle groove, and the first matching section and the second matching section are two opposite inner walls in the first toggle section; the second transmission member can rotate forward and enter the first stop section to stop the first lock tongue from retracting into the shell assembly; or, rotate reversely and enter the second stop section to stop the first lock tongue from extending out of the shell assembly; the first transmission member can drive the second transmission member to disengage from the second stop section in a forward direction; or, drive the second transmission member to disengage from the first stop section in a reverse direction.

[0014] In this way, when the second toggle portion enters the first stop section, the lock core linkage mechanism has the function of limiting and stopping the first lock tongue in the state of extending out of the shell assembly, thereby avoiding failure of mutual locking between the door frame and the door panel; when the second toggle portion enters the second stop section, the lock core linkage mechanism has the function of limiting and stopping the first lock tongue in the state of retracting into the shell assembly, thereby avoiding the first lock tongue accidentally extending out of the shell assembly and then being squeezed by the door frame to cause damage when the door panel and the door frame move relative to each other.

[0015] In one embodiment, the first lock tongue is provided with a slide groove, and the lock core linkage mechanism also includes a first pivot member fixed to the shell assembly, the first pivot member passes through one end of the second transmission member and is passed through the slide groove; the first lock tongue slides with the first pivot member and the shell assembly, the second transmission member is rotatably connected to the shell assembly through the first pivot member, and the second transmission member can drive the first lock tongue to extend or retract into the shell assembly along the length direction of the slide groove.

[0016] With this arrangement, the first lock tongue, the first pivot member and the second transmission member are arranged more compactly, which can reduce the space occupied by the lock core linkage mechanism, improve the space utilization rate in the housing assembly, and thus facilitate the miniaturization of the lock core linkage mechanism and the door lock.

[0017] In one embodiment, the lock core linkage mechanism also includes a first elastic member connected to the second transmission member, and the first elastic member has a first state and a second state; in the first state, the first elastic member is deformed in the positive direction so that the second transmission member remains in contact with the first stop section; in the second state, the first elastic member is deformed in the reverse direction so that the second transmission member remains in contact with the second stop section.

[0018] With such a configuration, when the first lock tongue is fully extended out of the shell assembly, or fully retracted into the shell assembly, the first elastic member acts on the second transmission member accordingly, thereby improving the limit retreat function or limit extension function of the lock core linkage mechanism, and preventing the first lock tongue from accidentally retracting into the shell assembly, or accidentally extending out of the shell assembly, after the door panel or door lock is impacted by external force.

[0019] In one embodiment, the second transmission member includes a first follower element and a second follower element, one of the first follower element and the second follower element is fixedly connected to the second toggle portion, and the other is connected to the first elastic member and is provided with a slot adapted to the second toggle portion; the second toggle portion is engaged with the slot so that the first follower element and the second follower element are fixed as a whole and can rotate synchronously relative to the shell assembly.

[0020] With such a configuration, the movement speed and movement space range of the first follower element are consistent with those of the second follower element, and they cooperate with each other to apply a positive pushing force to the first matching part, or a reverse pushing force to the second matching part, thereby improving the overall strength and load-bearing performance of the second transmission component, preventing the second transmission component from wearing and deforming, which would cause the lock core linkage mechanism to jam, and is beneficial to improving the durability of the lock core linkage mechanism.

[0021] In one embodiment, the first locking tongue includes a mounting frame, a toggle slot is opened on the mounting frame, the first follower element and the second follower element are located on two sides of the mounting frame that are opposite to each other; the second toggle portion is fixed to the first follower element and extends into the toggle slot, the locking slot is opened on the second follower element, and the first elastic member connects the second follower element and the shell assembly.

[0022] With such arrangement, the first lock tongue, the first follower element and the second follower element are arranged compactly, the first elastic member is conveniently arranged, the time consumption of disassembly and maintenance of the lock core linkage mechanism is reduced, and the difficulty of disassembly and assembly of the lock core linkage mechanism is reduced.

[0023] The present invention also provides a door lock, including a lock core assembly and any one of the above-mentioned lock core linkage mechanisms, the housing assembly is used to accommodate the lock core linkage mechanism, and is provided with a lock tongue through hole for the first lock tongue to extend or retract, the lock core assembly includes a lock core dial wheel movably cooperated with the first transmission member. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of a door lock according to an embodiment of the present invention;

[0025] Figure 2 for Figure 1 An exploded schematic diagram of the door lock shown;

[0026] Figure 3 for Figure 1 The three-dimensional structure diagram of the door lock shown in another viewing angle;

[0027] Figure 4 A schematic diagram of a partial structure of a housing assembly in one embodiment of the present invention;

[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of a first transmission member in one embodiment of the present invention;

[0029] Figure 6 It is a schematic diagram of the three-dimensional structure of the first locking tongue in one embodiment of the present invention;

[0030] Figure 7 for Figure 6 A front view of the first locking tongue shown;

[0031] Figure 8Schematic three-dimensional structure diagram of the first elastic member in an embodiment of the present invention;

[0032] Figure 9 Schematic three-dimensional structure diagram of the first follower element in an embodiment of the present invention;

[0033] Figure 10 Schematic three-dimensional structure diagram of the second follower element in an embodiment of the present invention;

[0034] Figure 11 Front view of the second fork in an embodiment of the present invention;

[0035] Figure 12 Schematic three-dimensional structure diagram of the handle connecting member in an embodiment of the present invention;

[0036] Figure 13 Schematic three-dimensional structure diagram of the first fork in an embodiment of the present invention;

[0037] Figure 14 is Figure 1 Schematic diagram of the shown door lock in the state where the first locking tongue is retracted into the housing assembly;

[0038] Figure 15 is Figure 1 Schematic diagram of the shown door lock in the state where the first locking tongue extends out of the housing assembly;

[0039] Figure 16 is Figure 1 Schematic diagram of the shown door lock in the state where both the first locking tongue and the second locking tongue are retracted into the housing assembly.

[0040] Explanation of reference numerals:

[0041] 100, lock cylinder linkage mechanism; 10, first transmission member; 11, first shifting part; 111, first shifting claw; 112, second shifting claw; 113, first gap; 121, third shifting claw; 122, fourth shifting claw; 123, second gap; 20, second transmission member; 21, second shifting part; 22, first force transmission part; 231, first follower element; 232, second follower element; 2321, slot; 2 322, elastic member connecting column; 24, second tooth group; 30, first locking tongue; 31, toggle groove; 311, first toggle section; 3111, first matching portion; 3112, second matching portion; 312, first stop section; 313, second stop section; 32, slide groove; 33, mounting frame; 331, second boss; 34, first plug-in portion; 35, transition connecting rod; 351, boss plug-in hole; 40, housing assembly ; 41, first housing; 411, lock tongue through hole; 42, second housing; 43, lock core mounting hole; 44, handle connector mounting hole; 45, fixed stop frame; 46, movable stop frame; 51, first pivot member; 52, second pivot member; 54, fourth pivot member; 61, first elastic member; 611, first set of holes; 612, second set of holes; 613, first elastic arm; 614, second elastic arm; 615, The third set of holes; 62, the second elastic member; 70, the second locking tongue; 91, the first shift fork; 911, the first plug-in hole; 912, the push rod; 913, the third boss; 92, the second shift fork; 921, the second plug-in hole; 922, the first tooth group; 93, the handle connector; 931, the prismatic plug-in section; 932, the limit shoulder; 933, the handle matching hole; 94, the washer; 95, the circumferential protrusion; 200, the door lock. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more related listed items.

[0044] See also Figures 1 to 4 , Figure 1 Schematic diagram of the three-dimensional structure of a door lock 200 according to an embodiment of the present invention; Figure 2 forFigure 1 Exploded schematic view of the door lock 200 shown Figure 3 For Figure 1 Schematic perspective view of the door lock 200 shown from another perspective

[0045] Figure 4 Partial structural schematic view of the housing assembly 40 in an embodiment of the present invention

[0046] The present invention provides a lock core linkage mechanism 100, including a first locking tongue 30 and a housing assembly 40 for accommodating the first locking tongue 30. The housing assembly 40 includes a first housing 41 and a second housing 42 that cover each other. Both the first housing 41 and the second housing 42 are provided with a lock core installation hole 43 and a handle connecting member installation hole 44. The lock core installation hole 43 is for the lock core assembly to pass through and be installed in the housing assembly 40, and the handle connecting member installation hole 44 is for the handle rotating shaft to pass through and be installed in the housing assembly 40.

[0047] Further, the side wall of the second housing 42 is also provided with a plurality of locking tongue through holes 411 for the first locking tongue 30 to pass through and partially extend out of the housing assembly 40, or retract into the housing assembly 40. Of course, the plurality of locking tongue through holes 411 can also be provided on the side wall of the first housing 41, or, after the first housing 41 and the second housing 42 are fixedly covered, a plurality of locking tongue through holes 411 are jointly defined between the two.

[0048] The first locking tongue 30, as the main locking tongue of the door lock 200, includes a relatively fixed mounting frame 33 and a plurality of first insertion portions 34. The first locking tongue 30 is slidably disposed in the housing assembly 40 through the mounting frame 33. The mounting frame 33 is used to bear the output power of the lock core assembly. The plurality of first insertion portions 34 are arranged in parallel at one end of the mounting frame 33 and correspond to the plurality of locking tongue through holes 411, and can extend out of the housing assembly 40 under the forward drive of the lock core assembly, or retract into the housing assembly 40 under the reverse drive of the lock core assembly.

[0049] In order to reduce the resistance of the first locking tongue 30 during the process of extending or retracting into the housing assembly 40 and reduce the clearance of the lock core linkage mechanism 100, an interference fit is preferably adopted between the first insertion portion 34 and the locking tongue through hole 411.

[0050] Existing door locks have problems such as complex structures, difficult assembly and maintenance, high manufacturing costs, and short service lives. Especially the transmission mechanism cooperating with the lock core assembly will have problems such as jamming, slow response, and significant blockage during movement after long-term use, which will cause wear of the internal components of the door lock and poor assembly between components, and then result in movement and transmission failure.

[0051] In view of this, the lock core linkage mechanism 100 provided by the present invention further includes a first transmission member 10 and a second transmission member 20. The first transmission member 10 is used to flexibly cooperate with the lock core assembly and bear the positive output power or the reverse output power of the lock core assembly, and the second transmission member 20 is used to flexibly cooperate with the first transmission member 10 and further transmit the power transmitted from the lock core assembly to the first transmission member 10 to the first lock tongue 30, thereby positively driving the first lock tongue 30 to extend out of the housing assembly 40, or reversely driving the first lock tongue 30 to retract into the housing assembly 40.

[0052] Among them, the first transmission member 10 includes a first toggle part 11 and a third toggle part, and the second transmission member 20 includes a first force transmission part 22 and a second toggle part 21. The first transmission member 10 movably cooperates with the first force transmission part 22 through the first toggle part 11, and movably cooperates with the lock core dial wheel of the lock core assembly through the third toggle part. The second transmission member 20 movably cooperates with the first lock tongue 30 through the second toggle part 21.

[0053] It is worth noting that the present invention does not specifically limit the structure or form of the lock core assembly / lock core dial. The lock core assembly / lock core dial can be a manual mechanical transmission structure with a key as the intermediate force transmission element, or an intelligent induction electric drive structure using an electric control drive method, that is, the lock core linkage mechanism 100 provided by the present invention can be used for both a manual mechanical door lock 200 and an intelligent electric control door lock 200. The following uses the application scenario in a manual mechanical door lock 200 as an example to explain in detail the composition and actuation process of the lock core linkage mechanism 100.

[0054] Please refer again Figure 2 , and see Figure 5 , Figure 5 FIG. 1 is a schematic diagram of the three-dimensional structure of the first transmission member 10 in one embodiment of the present invention.

[0055] Specifically, in a preferred embodiment of the present invention, a first pivoting member 51 and a second pivoting member 52 are fixedly disposed in the second housing 42, the second transmission member 20 is sleeved with the first pivoting member 51 so as to be rotatably connected to the second housing 42, and the first transmission member 10 is sleeved with the second pivoting member 52 so as to be rotatably connected to the second housing 42. The first shifting portion 11 includes a first shifting claw 111 and a second shifting claw 112, and a first gap 113 is provided between the first shifting claw 111 and the second shifting claw 112; the first force transmission portion 22 is a columnar structure protruding from the second transmission member 20, located in the first gap 113, and can abut against the first shifting claw 111 or the second shifting claw 112.

[0056] In addition, the third driving portion includes a third driving claw 121 and a fourth driving claw 122 . A second gap 123 is provided between the third driving claw 121 and the fourth driving claw 122 . The shape of the second gap 123 matches the shape of the lock cylinder dial wheel and is used to accommodate the lock cylinder dial wheel.

[0057] Furthermore, the first lock tongue 30 also includes a transition link 35 movably mounted on the mounting frame 33, one end of the transition link is movably connected to the second lock tongue 70 in the door lock 200, and the other end extends toward the lock cylinder dial wheel. The lock cylinder dial wheel can rotate and abut the transition link 35, and then the second lock tongue 70 is linked to move through the transition link 35, so that the second lock tongue 70 is retracted into the shell assembly 40.

[0058] Please refer again Figure 1 , and see Figures 14 to 16 , Figure 14 for Figure 1 The door lock 200 is shown as a schematic diagram in which the first locking tongue 30 is retracted into the housing assembly 40; Figure 15 for Figure 1 The door lock 200 is shown as a schematic diagram in which the first locking tongue 30 extends out of the housing assembly 40; Figure 16 for Figure 1 The door lock 200 is shown in a schematic diagram when the first lock tongue 30 and the second lock tongue 70 are both retracted into the housing assembly 40 .

[0059] When the user operates the lock cylinder dial Figure 14 When the lock cylinder push wheel rotates counterclockwise as shown, it contacts the third push claw 121, outputs power to the first transmission member 10 in a positive direction, and drives the first transmission member 10 to move positively around the axis of the second pivot member 52, that is, corresponding to Figure 14 Then, the first transmission member 10 abuts against the first force transmission portion 22 through the first finger 111, and positively drives the second transmission member 20 to rotate around the axis of the first pivot member 51, that is, corresponding to Figure 14 Then, the second transmission member 20 toggles the mounting bracket 33, so that the first plug portion 34 extends out of the housing assembly 40, and the state of the door lock 200 is as follows Figure 15 shown.

[0060] When the user operates the lock cylinder dial Figure 15 When the lock cylinder push wheel rotates in the clockwise direction as shown, it contacts the fourth push claw 122, outputs power to the first transmission member 10 in the reverse direction, and drives the first transmission member 10 to move in the reverse direction around the axis of the second pivot member 52, that is, corresponding to Figure 15 Then, the first transmission member 10 abuts against the first force transmission portion 22 through the second finger 112, driving the second transmission member 20 to rotate around the axis of the first pivot member 51 in the reverse direction, that is, corresponding to Figure 15 Then, the second transmission member 20 toggles the mounting bracket 33, so that the first plug portion 34 is retracted into the housing assembly 40, and the state of the door lock 200 is as follows Figure 14 shown.

[0061] When the user operates the lock cylinder dial Figure 14 When the lock core dial wheel rotates in the clockwise direction as shown, the lock core dial wheel moves away from the third dial portion and abuts against an end of the transition link 35 that is relatively close to the lock core dial wheel. As the user continues to apply force, the lock core dial wheel drives the transition link 35 to move along the Figure 14 The second locking tongue 70 moves upwards and moves in a coordinated manner. Figure 14 As shown in the right direction, the second locking tongue 70 is retracted into the housing assembly 40. At this time, the state of the door lock 200 is as follows: Figure 16 shown.

[0062] Preferably, the first finger 111, the second finger 112, the third finger 121 and the fourth finger 122 are integrally forged, that is, the first transmission member 10 is a forged member. In this way, the first finger 111, the second finger 112, the third finger 121 and the fourth finger 122 have higher rigidity and strength, and the load-bearing performance is further improved, and it is not easy to cause wear, deformation or strength damage, which is conducive to improving the force transmission performance and service life of the lock cylinder linkage mechanism 100.

[0063] Furthermore, the first locking tongue 30 includes a first matching portion 3111 and a second matching portion 3112. When driven in the forward direction by the first transmission member 10, the second shifting portion 21 can abut against the first matching portion 3111 and shift the mounting frame 33 so that the first plug-in portion 34 extends out of the shell assembly 40; or, when driven in the reverse direction by the first transmission member 10, the second shifting portion 21 can abut against the second matching portion 3112 and shift the mounting frame 33 so that the first plug-in portion 34 retracts into the shell assembly 40.

[0064] See also Figures 6 to 7 , Figure 6 It is a schematic diagram of the three-dimensional structure of the first locking tongue 30 in one embodiment of the present invention; Figure 7 for Figure 6 A front view of the first locking tongue 30 is shown.

[0065] Specifically, in a preferred embodiment of the present invention, the first locking tongue 30 is provided with a toggle groove 31, and the shape of the toggle groove 31 is as follows: Figure 6 , Figure 7 As shown, it includes a first toggle section 311, a first stop section 312 and a second stop section 313 that are interconnected. The first matching portion 3111 and the second matching portion 3112 are two inner wall surfaces oppositely arranged in the first toggle section 311, wherein the first matching portion 3111 is close to the first stop section 312, and the second matching portion 3112 is close to the second stop section 313.

[0066] Preferably, the first stop section 312 and the second stop section 313 are symmetrically arranged about the center line of the first toggle section 311, and both are arranged obliquely with respect to the first toggle section 311. Therefore, the shape of the toggle slot 31 is adapted to the arc track of the second toggle portion 21 rotating around the axis of the first pivot member 51, the second toggle portion 21 can rotate relative to the housing assembly 40 in the toggle slot 31, and the angular variation of the second transmission member 20 in the forward or reverse rotation is equal.

[0067] Please refer again Figures 14 to 15 When the user operates the lock cylinder dial Figure 14 When the second transmission member 20 rotates counterclockwise, the second toggle member 21 rotates clockwise around the axis of the first pivot member 51. The second toggle member 21 leaves the second stop section 313 and abuts against the first matching portion 3111, and then the mounting frame 33 is toggled to rotate clockwise. Figure 14 The door lock 200 moves in the left direction as shown in FIG. 1 until the first plug-in portion 34 fully extends out of the housing assembly 40. At this time, the door lock 200 is in the state as shown in FIG. Figure 15 As shown, the second shifting portion 21 enters into the first stopping section 312 and abuts against the inner wall of the first stopping section 312 .

[0068] When the user operates the lock cylinder dial Figure 15 When the second transmission member 20 rotates clockwise, the second toggle portion 21 rotates counterclockwise around the axis of the first pivot member 51. The second toggle portion 21 leaves the first stop section 312 and abuts against the second matching portion 3112, and then the mounting frame 33 is toggled to rotate counterclockwise. Figure 15 The door lock 200 moves in the right direction as shown until the first plug-in portion 34 is fully retracted into the housing assembly 40. At this time, the door lock 200 is in the state as shown in FIG. Figure 14 As shown, the second shifting portion 21 enters into the second stopping section 313 and abuts against the inner wall of the second stopping section 313 .

[0069] exist Figure 14 In the state shown, the inner wall of the second stop section 313 cooperates with the first pivot member 51 to stop the first locking tongue 30 from moving toward Figure 14 The first plug-in portion 34 is restricted from extending out of the housing assembly 40. Even if the user pulls the first plug-in portion 34 with force, the first locking tongue 30 cannot be extended. At this time, the second transmission member 20 can only leave the second stop segment 313 under the positive drive of the first transmission member 10. Similarly, Figure 15 In the state shown, the inner wall of the first stop section 312 cooperates with the first pivot member 51 to stop the first locking tongue 30 from moving toward Figure 15The movement in the right direction in it restricts the first insertion part 34 from retracting into the housing assembly 40, that is, even if force is used to push the first insertion part 34, the first locking tongue 30 cannot be retracted. At this time, the second transmission member 20 can only leave the first stop section 312 under the reverse drive of the first transmission member 10.

[0070] Further, a sliding groove 32 is provided on the first locking tongue 30, and the length direction of the sliding groove 32 is consistent with the axial direction of the locking tongue through hole 411. The first pivot member 51 on the second housing 42 is inserted into the sliding groove 32, and the first locking tongue 30 is sleeved on the outer periphery of the first pivot member 51 through the sliding groove 32 to form a sliding fit with the housing assembly 40. Therefore, the second transmission member 20 can drive the first locking tongue 30 to extend or retract into the housing assembly 40 along the length direction of the sliding groove 32.

[0071] With such a setting, the arrangement of the first locking tongue 30, the first pivot member 51 and the second transmission member 20 is more compact, which can reduce the space occupied by the lock core linkage mechanism 100, improve the space utilization rate in the housing assembly 40, and thus is beneficial to the miniaturization of the lock core linkage mechanism 100 and the door lock 200.

[0072] Please refer to again Figure 2 and Figure 4 and refer to Figures 8 to 10 . Figure 8 is a three-dimensional structural schematic diagram of the first elastic member 61 in an embodiment of the present invention; Figure 9 is a three-dimensional structural schematic diagram of the first follower element 231 in an embodiment of the present invention; Figure 10 is a three-dimensional structural schematic diagram of the second follower element 232 in an embodiment of the present invention.

[0073] Further, the lock core linkage mechanism 100 further includes a first elastic member 61 connecting the housing assembly 40 and the second transmission member 20. The first elastic member 61 has a first state and a second state; in the first state, the first elastic member 61 is deformed, and the second transmission member 20 is in elastic contact with the inner wall of the first stop section 312. In the second state, the first elastic member 61 is deformed, and the second transmission member 20 is in elastic contact with the inner wall of the second stop section 313.

[0074] In a preferred embodiment of the present invention, the first elastic member 61 is a torsion spring, including a first elastic arm 613 and a second elastic arm 614 that can rotate relatively, a first hole 611 is provided at one end of the first elastic arm 613 away from the second elastic arm 614, a second hole 612 is provided at one end of the second elastic arm 614 away from the first elastic arm 613, and a third hole 615 is provided between the first elastic arm 613 and the second elastic arm 614. A fourth pivoting member 54 is fixedly provided on the second housing 42, and the first hole 611 is sleeved with the fourth pivoting member 54 so as to be rotatably connected with the second housing 42; an elastic member connecting column 2322 is fixedly provided on the second transmission member 20, and the second hole 612 is sleeved with the elastic member connecting column 2322 so as to be rotatably connected with the second transmission member 20.

[0075] When the user locks the door, the lock cylinder dial wheel outputs power in the positive direction and overcomes the elastic force of the first elastic member 61 to make the second transmission member 20 rotate in the positive direction. When the second dial portion 21 is about to leave the first matching portion 3111, the elastic potential energy accumulated in the first elastic member 61 reaches the maximum. Then, the first elastic member 61 deforms spontaneously and rotates relative to the housing assembly 40 along the axis of the fourth pivot member 54. Figure 4 As shown, it rotates clockwise to enter the first stop section 312, and at the same time, the angle between the first elastic arm 613 and the second elastic arm 614 increases until the second transmission member 20 abuts against the inner wall of the first stop section 312. Finally, the first elastic member 61 continuously applies elastic force to the second transmission member 20, so that it maintains an abutment state with the inner wall of the first stop section 312.

[0076] When the user unlocks the lock, the lock cylinder dial outputs power in the reverse direction and overcomes the elastic force of the first elastic member 61 to make the second transmission member 20 rotate in the reverse direction. When the second dial portion 21 is about to leave the first matching portion 3111, the elastic potential energy accumulated in the first elastic member 61 reaches the maximum. Then, the first elastic member 61 deforms spontaneously and rotates relative to the housing assembly 40 along the axis of the fourth pivot member 54. Figure 4 As shown, it rotates counterclockwise to enter the second stop section 313, and at the same time, the angle between the first elastic arm 613 and the second elastic arm 614 decreases until the second transmission member 20 abuts against the inner wall of the second stop section 313. Finally, the first elastic member 61 continuously applies elastic force to the second transmission member 20, so that it remains in abutment with the inner wall of the second stop section 313.

[0077] Furthermore, the second transmission member 20 includes a first follower element 231 and a second follower element 232 which are separately arranged. The first follower element 231 is fixedly connected to the second shifting portion 21 and is forged as one piece. The second follower element 232 is provided with a slot 2321 which is adapted to the second shifting portion 21, and is fixed with an elastic member connecting column 2322 which is sleeved with the second sleeve hole 612 of the first elastic member 61.

[0078] The first follower element 231 and the second follower element 232 are both sleeved with the first pivot member 51, and the second shifting portion 21 is engaged with the slot 2321 to form a follower fit, so that the first follower element 231 and the second follower element 232 are fixed as a whole, and the two rotate around the first pivot member 51 at the same speed relative to the housing assembly 40 and have the same rotation angle.

[0079] Preferably, the first follower element 231 and the second follower element 232 are both forged parts; the toggle slot 31 is opened on the mounting frame 33, and the first follower unit and the second follower unit are located on two sides of the mounting frame 33 that are away from each other, wherein the first follower unit is located on the side of the mounting frame 33 facing the first shell 41, and the second follower unit is located on the side of the mounting frame 33 facing the second shell 42, and the second toggle portion 21 is fixed to one end of the first follower unit relatively away from the first pivot member 51, and is bent relative to the first follower unit in a direction close to the second shell 42, thereby extending into the toggle slot 31.

[0080] With such a configuration, the movement speed and movement space range of the first follower element 231 and the second follower element 232 are consistent, and they cooperate to apply a positive force to the first matching portion 3111, or a reverse force to the second matching portion 3112, thereby improving the overall strength and load-bearing performance of the second transmission member 20, preventing the second transmission member 20 from being worn and deformed, thereby preventing the lock core linkage mechanism 100 from being stuck, and improving the durability of the lock core linkage mechanism 100. In addition, the first lock tongue 30, the first follower element 231, and the second follower element 232 are compactly arranged, which facilitates the arrangement of the first elastic member 61, reduces the time consumption of disassembly and maintenance of the lock core linkage mechanism 100, and reduces the difficulty of disassembly and assembly of the lock core linkage mechanism 100.

[0081] The second transmission member 20 includes a first follower element 231 and a second follower element 232 which are separately arranged. This is for the technical consideration of conveniently arranging the first elastic member 61, ensuring the connection reliability of the first elastic member 61, and improving the overall load-bearing performance of the second transmission member 20. In particular, the first follower element 231 and the second follower element 232 are axially stacked on both sides of the mounting frame 33 along the first pivot member 51, which is beneficial to improve the stability of the movement of the mounting frame 33 by the two elements, and avoid crushing deformation or wear caused by long-term use of the two elements.

[0082] It is understandable that in other embodiments, the second transmission member 20 may not necessarily be configured as two follower elements that are formed separately and fixed as one, and the first elastic member 61 may also be of other types, and is not limited to the torsion spring in the above embodiment.

[0083] The present invention also provides a door lock 200, which includes the lock core linkage mechanism 100 provided by the present invention, a rotating handle, a second locking tongue 70 accommodated in a housing assembly 40, and a lock core assembly. The rotating handle includes a rotating shaft passing through a handle connecting member mounting hole 44. The second locking tongue 70, as a secondary locking tongue of the door lock 200, is slidably disposed in the housing assembly 40 and includes an inclined tongue located at an end and corresponding to a locking tongue through hole 411. The second locking tongue 70 can slide relative to the housing assembly 40 along its own axis, driving the inclined tongue to extend or retract into the housing assembly 40; the lock core assembly includes a lock core dial wheel that is movably engaged with the first transmission member 10.

[0084] In one embodiment, the lock core linkage mechanism 100 further includes a first fork 91, a second fork 92, and a handle connecting member 93. The first fork 91, the second fork 92, and the handle connecting member 93 are all rotatably disposed relative to the housing assembly 40.

[0085] Specifically, the handle connecting member 93 is coaxially disposed and movably engaged with the first fork 91 and the second fork 92. The handle connecting member 93 can rotate relative to the first fork 91 within a first preset range and can rotate relative to the second fork 92 within a second preset range.

[0086] The first fork 91 is movably engaged with the second locking tongue 70. The second fork 92 includes a first tooth group 922. The second transmission member 20 includes a second tooth group 24 disposed at an end of the first follower element 231. The second tooth group 24 is adapted to the first tooth group 922, that is, the second fork 92 and the second transmission member 20 are connected by a tooth engagement method.

[0087] Please refer to again Figure 2 and Figure 4 and refer to Figures 11 to 13 Figure 11 is a front view of the second fork 92 in an embodiment of the present invention; Figure 12 is a three-dimensional structural schematic diagram of the handle connecting member 93 in an embodiment of the present invention; Figure 13 is a three-dimensional structural schematic diagram of the first fork 91 in an embodiment of the present invention.

[0088] The first fork 91 is used to drive the second locking tongue 70 to move axially, so that the second locking tongue 70 retracts into the housing assembly 40 and is movably connected to the first locking tongue 30; the second fork 92 is in a tooth engagement transmission connection with the first follower element 231 of the second transmission member 20.

[0089] Specifically, the first fork 91 and the second fork 92 are sequentially stacked along the axial direction of the handle connecting member 93. The first fork 91 and the second fork 92 are respectively provided with a first insertion hole 911 and a second insertion hole 921. The first insertion hole 911 and the second insertion hole 921 are coaxially disposed with the handle connecting member mounting hole 44.

[0090] ​The handle connecting member 93 is provided with a first plug hole 911 and a second plug hole 921, and includes a coaxially arranged prism plug section 931 and a limiting shoulder 932. The prism plug section 931 is provided in the first plug hole 911 and the second plug hole 921, the limiting shoulder 932 is relatively close to the first housing 41 and abuts against the side of the second fork 92, and the handle connecting member 93 is provided with a handle matching hole 933 coaxially arranged with the handle connecting hole, which is used to sleeve the rotating handle shaft, so that the handle connecting member 93 is fixed relative to the handle shaft in the circumferential direction of the handle shaft.

[0091] Preferably, the inner walls of the first plug hole 911 and the second plug hole 921 are provided with a circumferential protrusion 95 protruding radially inward, and the circumferential protrusion 95 is used to abut against the outer peripheral surface of the prism plug section 931. The handle connecting member 93 rotates within a preset angle range, which can drive one of the first fork 91 and the second fork 92 to rotate relative to the other, and can also drive the first fork 91 and the second fork 92 to rotate synchronously.

[0092] Specifically, the circumferential protrusions 95 in the first plug hole 911 and the circumferential protrusions 95 in the second plug hole 921 are evenly distributed around the axis of the handle connector mounting hole 44 .

[0093] The first shift fork 91 further includes a push rod 912 protruding outward and a third protruding column 913 protruding axially along the first plug hole 911. The second lock tongue 70 is penetrated by a fixed retaining frame 45 and a movable retaining frame 46, wherein the fixed retaining frame 45 is fixedly mounted on the second housing 42, and the movable retaining frame 46 is fixedly sleeved on the outer peripheral wall of the second lock tongue 70. The fixed retaining frame 45 is located on the side of the movable retaining frame 46 that is relatively close to the oblique tongue in the axial direction of the second lock tongue 70, and the push rod 912 extends into the gap between the fixed retaining frame 45 and the movable retaining frame 46. A second elastic member 62 is sleeved on the outer periphery of the second lock tongue 70, and the second elastic member 62 is preferably a telescopic spring, and its two ends are respectively against the oblique tongue and the fixed retaining frame 45.

[0094] Furthermore, the transition link 35 is provided with a boss insertion hole 351 for sleeve-mounting the third boss 913; the transition link 35 is provided with a strip hole at one end relatively away from the boss insertion hole 351, and the mounting frame 33 is fixed with a protruding second boss 331 on one side close to the second shell 42, and the second boss 331 is passed through the strip hole.

[0095] The lock cylinder dial can be moved along Figure 14 The transition connecting rod 35 is rotated in the clockwise direction as shown and abuts against the transition connecting rod 35, thereby pushing the transition connecting rod 35 along Figure 14 As shown in the figure, the first shift fork 91 is linked to move upward Figure 14 As shown, the first shift fork 91 rotates in the clockwise direction, and the push rod 912 applies a thrust to the movable blocking frame 46 .

[0096] Therefore, the lock core dial drives the first fork 91 to rotate through the transition link 35, and the first fork 91 drives the second lock tongue 70 to retract into the housing assembly 40. At this time, the state of the door lock 200 is as Figure 16 shown.

[0097] In order to accurately position the first fork 91 and the second fork 92, a washer 94 is also provided between the first fork 91 and the second fork 92.

[0098] Please refer to again Figure 14 , when the user applies an external force in the clockwise direction as shown in Figure 14 , the handle connecting piece 93 rotates in the clockwise direction as shown in Figure 14 , and abuts against the circumferential convex block 95 of the first fork 91 through the prism plugging section 931, driving the first fork 91 to rotate in the clockwise direction as shown in Figure 14 , so that the push rod 912 drives the second lock tongue 70 to retract into the housing assembly 40. At this time, the state of the door lock 200 is as Figure 16 shown.

[0099] Therefore, the user can either use the key to drive the lock core dial, drive the transition link 35 through the lock core dial, so that the transition link 35 retracts the second lock tongue 70 into the housing assembly 40 by linking the first fork 91, or apply force to the rotating handle, and retract the second lock tongue 70 into the housing assembly 40 by driving the first fork 91 to rotate through the handle connecting piece 93. Even if the handle connecting piece 93 fails or is damaged, it will not affect the user's use of the key to drive the second lock tongue 70 to retract.

[0100] Please refer to again Figure 14 , when the user applies an external force in the counterclockwise direction as shown in Figure 14 , the handle connecting piece 93 rotates in the counterclockwise direction as shown in Figure 14 , and abuts against the circumferential convex block 95 of the second fork 92 through the prism plugging section 931, driving the second fork 92 to rotate in the counterclockwise direction as shown in Figure 14 , then the second fork 92 is in transmission engagement with the second tooth group 24 of the first follower element 231 through the first tooth group 922, driving the second transmission member 20 to rotate clockwise around the first pivot member 51 as shown in Figure 14 , until the second transmission member 20 drives the first lock tongue 30 to extend out of the housing assembly 40. At this time, the state of the door lock 200 is as Figure 15 shown.

[0101] When the door lock 200 is in the state as shown in Figure 15 , when the user applies a clockwise external force to the rotating handle, the handle connecting piece 93 rotates in the clockwise direction as shown in Figure 15Rotating in the clockwise direction as shown, the handle connecting member 93 abuts against the circumferential protrusions 95 of the first fork 91 and the circumferential protrusions 95 of the second fork 92 simultaneously through the prism plug-in section 931, driving the first fork 91 and the second fork 92 to rotate synchronously along Figure 15 the clockwise direction as shown. Under the abutting action of the push rod 912 on the movable stop 46, the second locking tongue 70 is driven to retract into the housing assembly 40; at the same time, the second fork 92 is in transmission engagement with the second tooth set 24 of the first follower element 231 through the first tooth set 922, driving the second transmission member 20 to rotate counterclockwise around the first pivot member 51 along Figure 15 the counterclockwise direction as shown until the second transmission member 20 drives the first locking tongue 30 to retract into the housing assembly 40. At this time, the door lock 200 is in the state as Figure 16 shown.

[0102] Therefore, the user can either use the key to drive the lock core pulley and control the extension or retraction of the first locking tongue 30 relative to the housing assembly 40 by driving the lock core linkage mechanism 100 to move through the lock core pulley, so that the door lock 200 can be switched between Figure 14 and Figure 15 the two states as shown, or apply force to the rotating handle to control the extension or retraction of the first locking tongue 30 and the second locking tongue 70 relative to the housing assembly 40. Even if the handle connecting member 93 fails or is damaged, it will not affect the user's use of the key to drive the first locking tongue 30 to extend or retract into the housing assembly 40.

[0103] Please refer to Figure 14 and Figure 15 again. The lock core linkage mechanism 100 can reduce the angle and number of turns of the key rotated by the user when unlocking or locking the door. Without rotating the key multiple times, the first locking tongue 30 can be quickly extended or retracted into the housing assembly 40, eliminating the inconvenience of the user repeatedly applying force when rotating the key multiple times in a traditional door lock. The extension and retraction process of the first locking tongue 30 is faster.

[0104] The lock core linkage mechanism 100 provided by the present invention has the characteristics of simple structure, reliable connection and cooperation, good durability, and long service life. The lock core linkage mechanism 100 responds more sensitively to the power input of the lock core assembly, has higher force transmission efficiency and stability, and can overcome the defects of jamming, response delay, and large movement resistance after long-term use, thereby avoiding the movement failure caused by the wear of the lock core linkage mechanism 100 or the poor assembly between components.

[0105] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0106] Those of ordinary skill in the art should recognize that the above embodiments are only used to illustrate the present invention and are not intended to limit the present invention. As long as appropriate changes and variations are made to the above embodiments within the scope of the spirit of the present invention, they fall within the scope of protection required by the present invention.

Claims

1. A lock core linkage mechanism, characterized in that, It comprises a first transmission member (10), a second transmission member (20), a first locking tongue (30), a housing assembly (40) and a first elastic member (61); The first locking tongue (30) is slidably disposed on the housing assembly (40) and comprises a mounting frame (33) having a toggle slot (31); The first elastic member (61) is connected to the housing assembly (40); The first transmission member (10) comprises a first shifting portion (11) and is used to form a match with the lock cylinder shifting wheel and to movably cooperate with the second transmission member (20) through the first shifting portion (11); The second transmission member (20) comprises a first follower element (231), a second follower element (232) and a second toggle portion (21) fixed to the first follower element (231); the first follower element (231) and the second follower element (232) are separately arranged and respectively located on two sides of the mounting frame (33) that are away from each other; the second follower element (232) is connected to the first elastic member (61) and is provided with a slot (2321); the second toggle portion (21) is movably matched with the first locking tongue (30); The second driving portion (21) also extends into the driving groove (31) and engages with the locking groove (2321), so that the first follower element (231) and the second follower element (232) are fixed as a whole and can rotate synchronously relative to the housing assembly (40); The first transmission member (10) is capable of driving the second transmission member (20) to move, and the second transmission member (20) drives the first locking tongue (30) through the second toggle portion (21) so that the first locking tongue (30) extends out of or retracts into the housing assembly (40); The first elastic member (61) has a first state and a second state; In the first state, the first locking tongue (30) extends out of the housing assembly (40), and the first elastic member (61) is deformed so that the second toggle portion (21) maintains abutment with the first stop section (312) of the toggle groove (31); In the second state, the first locking tongue (30) is retracted into the housing assembly (40), and the first elastic member (61) is deformed so that the second toggle portion (21) maintains abutment with the second stop section (313) of the toggle groove (31); The first lock tongue (30) also includes a transition link (35) movably mounted on the mounting frame (33); one end of the transition link (35) is movably connected to the second lock tongue (70) in the door lock, and the other end extends toward the lock core dial wheel; the lock core dial wheel rotates and abuts against the transition link (35), and the second lock tongue (70) is retracted into the housing assembly (40) through the transition link (35).

2. The lock core linkage mechanism according to claim 1, characterized in that, The first shifting portion (11) comprises a first shifting claw (111) and a second shifting claw (112), a first gap (113) is provided between the first shifting claw (111) and the second shifting claw (112), and the second transmission member (20) further comprises a first force transmission portion (22) provided in the first gap (113); The first transmission member (10) can abut against the first force transmission portion (22) through the first push claw (111) and drive the second transmission member (20) to move in a positive direction, so that the first locking tongue (30) extends out of the housing assembly (40); or, the second push claw (112) can abut against the first force transmission portion (22) and drive the second transmission member (20) to move in a reverse direction, so that the first locking tongue (30) is retracted into the housing assembly (40).

3. The lock core linkage mechanism according to claim 2, characterized in that, The first transmission member (10) further comprises a third pusher claw (121) and a fourth pusher claw (122), and a second gap (123) is provided between the third pusher claw (121) and the fourth pusher claw (122) for the lock cylinder pusher to extend into; The third pawl (121) can abut against the lock core dial wheel and, driven by the lock core dial wheel, cause the first transmission member (10) to move in the forward direction, and the fourth pawl (122) can abut against the lock core dial wheel and, driven by the lock core dial wheel, cause the first transmission member (10) to move in the reverse direction.

4. The lock core linkage mechanism according to claim 3, characterized in that, The first shifter claw (111), the second shifter claw (112), the third shifter claw (121) and the fourth shifter claw (122) are integrally forged.

5. The lock core linkage mechanism according to claim 1, characterized in that, The first locking tongue (30) further comprises a first matching portion (3111) and a second matching portion (3112); the second transmission member (20) is rotatably connected to the housing assembly (40); The second moving portion (21) can abut against the first matching portion (3111) and move the first locking tongue (30) so that the first locking tongue (30) extends out of the housing assembly (40); or, abut against the second matching portion (3112) and move the first locking tongue (30) so that the first locking tongue (30) retracts into the housing assembly (40).

6. The lock core linkage mechanism according to claim 5, characterized in that, The toggle groove (31) further comprises a first toggle section (311) connecting the first stop section (312) and the second stop section (313); The second toggle portion (21) is capable of rotating relative to the housing assembly (40) in the toggle groove (31), and the first matching portion (3111) and the second matching portion (3112) are two opposite inner walls in the first toggle section (311); The second transmission member (20) can rotate and enter the first stop section (312) to stop the first locking tongue (30) from retracting into the housing assembly (40); or, rotate and enter the second stop section (313) to stop the first locking tongue (30) from protruding from the housing assembly (40); the first transmission member (10) can drive the second transmission member (20) to disengage from the second stop section (313); or, drive the second transmission member (20) to disengage from the first stop section (312).

7. The lock core linkage mechanism according to claim 6, characterized in that, The first locking tongue (30) is provided with a sliding groove (32), and the lock core linkage mechanism further includes a first pivot member (51) fixedly arranged on the housing assembly (40), and the first pivot member (51) penetrates through one end of the second transmission member (20) and is arranged in the sliding groove (32). The first locking tongue (30) is slidably matched with the first pivot member (51) and the housing assembly (40), the second transmission member (20) is rotatably connected to the housing assembly (40) through the first pivot member (51), and the second transmission member (20) can drive the first locking tongue (30) to extend or retract into the housing assembly (40) along the length direction of the sliding groove (32).

8. A door lock, characterized in that, It includes a lock core assembly and the lock core linkage mechanism according to any one of claims 1-7. The housing assembly (40) is used for accommodating the lock core linkage mechanism and is provided with a locking tongue through hole (411) for the first locking tongue (30) to extend or retract. The lock core assembly includes a lock core dial wheel that is movably matched with the first transmission member (10).

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