Handle-locking mechanical lock

Abstract

The present invention relates to a handle locking type mechanical lock, comprising a lock shell, a lock tongue, a dial wheel rod and a push piece arranged in the lock shell, the dial wheel rod and the push piece are connected in transmission, and the push piece is fixedly connected to the lock tongue; further comprising a handle transmission assembly, the handle transmission assembly comprising a handle, a handle dial wheel and a handle dial rod; the handle passes through the lock shell and is fixedly connected to the handle dial wheel, the handle dial wheel is connected in transmission to the handle dial rod, and the handle dial rod is connected in transmission to the dial wheel rod; further comprising a handle locking assembly, the handle locking assembly comprising a dial wheel, a transition dial rod and a locking block, the dial wheel has an extension rod, the extension rod is connected in transmission to one end of the transition dial rod, the other end of the transition dial rod is connected in transmission to the locking block, the locking block and the lock shell form a moving pair with a determined moving direction; further comprising a lock tongue locking assembly. The present invention has a handle unlocking function, can lock the handle when needed, and can also have a lock tongue locking and triggering automatic pop-up function, and is particularly suitable for use as a sliding door lock.

Description

Technical Field

[0001] The invention relates to a handle locking type mechanical lock, belonging to the technical field of mechanical locks. Background Art

[0002] As far as the inventor knows, mechanical locks used in scenes such as sliding doors often have the function of controlling the bolt to retract to unlock by a handle. During a long period of research, the inventor found that users increasingly want to be able to lock the handle when needed, so that it cannot be unlocked temporarily, and unlock the handle when needed to restore its unlocking function. However, existing mechanical locks either do not have this function, or the structure to achieve this function is too complicated, which is not conducive to reducing costs. It is urgent to develop a mechanical lock that can overcome the above problems of the prior art. Summary of the invention

[0003] The main purpose of the present invention is to overcome the problems existing in the prior art and provide a handle locking type mechanical lock which not only has the handle unlocking function but also can lock the handle when needed so that the handle cannot be unlocked temporarily.

[0004] The technical solution of the present invention to solve the technical problem is as follows:

[0005] A handle locking type mechanical lock comprises a lock housing, wherein a lock tongue, a dial lever and a push piece are arranged in the lock housing, a through hole for the lock tongue to enter and exit is arranged on a side plate of the lock housing, the dial lever is rotatably connected to the lock housing, the dial lever is transmission-connected to the push piece, and the push piece is fixedly connected to the lock tongue; wherein the lock tongue ...

[0006] The mechanical lock further comprises a handle transmission assembly, the handle transmission assembly comprising a handle located outside the lock housing, a handle dial wheel and a handle lever located inside the lock housing; the handle passes through the lock housing and is fixedly connected to the handle dial wheel, the handle dial wheel is in transmission connection with the handle lever, and the handle lever is in transmission connection with the dial wheel lever;

[0007] The mechanical lock further comprises a handle locking assembly, which comprises a toggle wheel, a transition lever and a locking block, wherein the toggle wheel and the transition lever are respectively rotatably connected to the lock housing, the toggle wheel has an extension rod, the extension rod is in transmission connection with one end of the transition lever, the other end of the transition lever is in transmission connection with the locking block, and the locking block and the lock housing form a moving pair with a determined moving direction; the handle toggle wheel has a first locking structure, the locking block has a second locking structure, and the first and second locking structures match each other;

[0008] The handle locking assembly has a handle locking state in which the toggle wheel rotates forward under the action of an external force and drives the transition lever to rotate through its extension rod, and the transition lever toggles the locking block and makes its second locking structure match the first locking structure of the handle wheel;

[0009] The handle locking assembly also has: the toggle wheel rotates in the opposite direction under the action of external force and drives the transition lever to rotate through its extension rod, and the transition lever toggles the locking block and makes its second locking structure break away from the handle unlocking state of the first locking structure of the handle toggle wheel.

[0010] In this structure, the handle locking assembly can lock or unlock the handle when needed, so that the entire lock body has both a handle unlocking function and a handle locking function, thereby better meeting the needs of users.

[0011] The technical solution further improved by the present invention is as follows:

[0012] Preferably, the dial lever has a fixed rotation axis, the dial lever forms a rotation pair with an axial constraint with the lock housing at the rotation axis, one end of the push piece is fixedly connected to the lock tongue, the other end of the push piece has a groove, and the end of the dial lever extends into the groove; the movement direction of the dial lever, the movement direction of the push piece, and the movement direction of the lock tongue are located in the same plane or in different planes parallel to each other;

[0013] The handle, the handle dial wheel and the handle lever respectively have a fixed rotation axis, the handle dial wheel and the handle lever respectively form a rotation pair with an axial constraint with the lock housing at their rotation axis, the handle passes through the lock housing at its rotation axis and is coaxially fixed to the handle dial wheel, the handle dial wheel has a toggle protrusion, one end of the handle lever is provided with a first cylindrical component, the toggle protrusion contacts the first cylindrical component, and the other end of the handle lever contacts the dial wheel rod; the movement direction of the handle, the movement direction of the handle dial wheel, the movement direction of the handle dial rod, and the movement direction of the dial wheel rod are located in the same plane or in different planes parallel to each other;

[0014] The handle transmission assembly comprises: the handle rotates under the action of external force and drives the handle dial wheel to rotate, the handle dial wheel pushes the first columnar component with its dialing protrusion, the handle dial rod rotates accordingly and pushes the dial wheel rod, the dial wheel rod drives the push piece to move, and the push piece drives the lock tongue to retract the handle unlocking state of the lock shell.

[0015] By adopting this preferred solution, the basic transmission structure of the lock body and the structure of the handle transmission assembly can be further optimized.

[0016] Preferably, the toggle wheel and the transition lever respectively have a fixed rotation axis, and the toggle wheel and the transition lever respectively form a rotating pair with axial constraint with the lock shell at their rotation axis; the end of the extension rod of the toggle wheel has a fork, and one end of the transition lever extends into the fork; the locking block is provided with a groove or a through hole, and the other end of the transition lever extends into the groove or the through hole; the lock shell is provided with a slide groove matching the locking block, and the locking block is placed in the slide groove; the movement direction of the toggle wheel, the movement direction of the transition lever, the movement direction of the locking block, and the movement direction of the handle wheel are located in the same plane or in different planes parallel to each other.

[0017] By adopting this preferred solution, the structure of the handle locking assembly can be further optimized.

[0018] More preferably, the rotation axis of the toggle wheel coincides with the rotation axis of the toggle wheel rod; the handle locking assembly further comprises a lock core, a twisting handle, and a locking spring; the outer end of the lock core has a keyhole and is exposed on one side of the lock shell, and the inner end of the lock core is provided with a rotating handle located in the lock shell; the toggle wheel is provided with a first extension arm and a second extension arm along its radial direction, and the rotating handle is located between the first extension arm and the second extension arm; the twisting handle is located on the other side of the lock shell away from the outer end of the lock core, the twisting handle has a fixed rotation axis, and the twisting handle passes through the lock shell at its rotation axis and is coaxially fixed to the toggle wheel; the locking spring is located between the locking block and the lock shell, the lock shell is provided with a first mounting column, the locking spring is arranged on the first mounting column, the locking block has a first synapse, one end of the locking spring is against the lock shell, and the locking spring is provided with a second synapse near the other end thereof, and the first synapse is against the second synapse; the movement direction of the rotating handle, the movement direction of the twisting handle, and the movement direction of the toggle wheel are located in the same plane or in different planes parallel to each other;

[0019] When the handle locking assembly is in the handle locking state, the rotating handle abuts against the first extension arm, and the first synapse abuts against one side of the second synapse; when the handle locking assembly is in the handle unlocking state, the rotating handle abuts against the second extension arm, and the first synapse abuts against the other side of the second synapse.

[0020] By adopting this preferred scheme, the handle can be locked by operating the lock cylinder to drive the rotating handle, and the rotating handle acts on the first extension arm and the second extension arm to rotate the toggle wheel, or the handle can be locked by directly rotating the toggle wheel by operating the twist handle; the locking spring can lock the position of the locking block to ensure the handle locking effect, which makes the handle locking assembly easier to use.

[0021] Preferably, the first locking structure of the handle wheel is a protruding fork extending from the handle wheel, the protruding fork has a fork opening, and the second locking structure of the locking block is a limiting column fixed to the locking block; the plane where the protruding fork is located, the plane where the fork opening is located, and the plane where the handle wheel is located coincide with or are parallel to each other; the limiting column is perpendicular to the plane where the fork opening is located.

[0022] By adopting this preferred solution, the first and second locking structures in the handle locking assembly can be further optimized.

[0023] Preferably, in the handle transmission assembly, the handle comprises an inner door handle and an outer door handle, and the handle dial comprises an inner door handle dial and an outer door handle dial coaxially arranged; the inner door handle dial and the outer door handle dial respectively form a rotating pair with axial constraints with the lock housing at their rotation axes; the inner door handle passes through the lock housing at its rotation axis and is coaxially fixedly connected to the inner door handle dial, and the outer door handle passes through the lock housing at its rotation axis and is coaxially fixedly connected to the outer door handle dial;

[0024] The inner door handle dial wheel and the outer door handle dial wheel each have a dial protrusion, and each dial protrusion is in contact with the first columnar component of the handle lever;

[0025] The first locking structure of the inner door handle dial wheel is an inner door protruding fork extending from the inner door handle dial wheel, and the inner door protruding fork has an inner door fork opening; the first locking structure of the outer door handle dial wheel is an outer door protruding fork extending from the outer door handle dial wheel, and the outer door protruding fork has an outer door fork opening;

[0026] The second locking structure of the locking block comprises a protruding block at the end of the locking block, wherein the protruding block has a groove opening toward the outer door handle dial wheel, a limiting column is arranged in the groove, and the limiting column matches the outer door fork.

[0027] By adopting this preferred solution, the locking and unlocking of the handle can be better achieved.

[0028] More preferably, the limiting column is cylindrical;

[0029] When the limiting column extends from one side wall of the groove to the other side wall of the groove, the limiting column is a full column, the outer fork of the door is a circle or an oblong that can match the limiting column, and the inner fork of the door is an angle formed by the intersection of two straight lines;

[0030] When the limiting column extends from one side wall of the groove to the middle of the groove, the limiting column is a half column, and the position of the limiting column corresponds to the fork outside the door, and the fork outside the door is circular or oblong that can match the limiting column.

[0031] By adopting this preferred scheme, different handle locking modes can be further realized, including: Mode 1, when the handle is locked, the inner door handle can be used to push the limit column out through the inner door fork to achieve handle unlocking, thereby realizing the escape function; Mode 2, when the handle is locked, the inner door handle can directly realize the escape function.

[0032] Preferably, a swing spring and a second mounting column are further provided in the lock housing, the swing spring is placed on the second mounting column, one end of the swing spring abuts against the lock housing or a limiting column of the lock housing, and the other end of the swing spring abuts against the end of the lock tongue close to the push plate.

[0033] By adopting this preferred solution, the lock tongue of the mechanical lock can be automatically ejected.

[0034] Preferably, a deadbolt locking assembly is further provided in the lock housing, and the deadbolt locking assembly includes a pressing column, a locking piece and a return spring; the locking piece has a fixed rotation axis, and the locking piece forms a rotating pair with an axial constraint with the lock housing at its rotation axis; one end of the pressing column is exposed from the lock housing and forms a pressing end, the other end of the pressing column is inclined, one end of the locking piece is provided with a second cylindrical member, the other end of the pressing column abuts against the second cylindrical member, the other end of the locking piece has a locking tip, and the push piece has a locking tip that matches the locking tip. The locking member is provided with a slot; the pressing column is provided with a long hole, the lock housing is provided with a third cylindrical component, the third cylindrical component is located in the long hole, and the pressing column and the lock housing form a moving pair; the lock housing is provided with a third mounting column on the side of the locking piece away from the pressing column, the reset spring is arranged on the third mounting column, one end of the reset spring is against the lock housing, and the other end of the reset spring is against the other end of the locking piece; the movement direction of the pressing column, the movement direction of the locking piece, and the movement direction of the push piece are located in the same plane or in different planes parallel to each other;

[0035] The bolt locking assembly has the following features: when the push piece drives the bolt to retract into the lock housing under the pull of the dial rod, the return spring abuts against the other end of the locking piece, so that the locking tip of the locking piece slides into the slot of the push piece to lock the push piece, and one end of the locking piece pushes the pressing column through the second columnar member, so that the pressing end of the pressing column is exposed from the lock housing or is flush with the surface of the lock housing, thus achieving the bolt locking state;

[0036] The bolt locking assembly also has: when the pressing end of the pressing column is pressed by external force, the other end of the pressing column pushes one end of the locking plate through the second cylindrical component to make it rotate, and the other end of the locking plate rotates accordingly and makes the locking tip slide out of the card slot of the push plate to enter a pressed and unlocked state.

[0037] By adopting this preferred solution, the mechanical lock can further have the functions of locking and pressing to unlock the lock tongue, and with the cooperation of the rotary spring, the lock tongue can automatically pop out when pressed to unlock.

[0038] More preferably, the mechanical lock also includes a buckle box, which is composed of a side plate and a box body fixedly connected, the side plate has a through hole for the lock tongue to enter and exit, the box body is connected to the through hole, and the box body matches the lock tongue; the side plate is also provided with a button push rod, and the button push rod matches the pressing end of the pressing column.

[0039] By adopting this preferred solution, when the mechanical lock is installed on the sliding door, the lock tongue can be automatically popped out when the sliding door is closed to lock it.

[0040] Compared with the prior art, the present invention not only has the handle unlocking function, but also can lock the handle when needed, so that the handle cannot be unlocked temporarily. In addition, it also has the functions of locking the deadbolt and triggering automatic pop-up, and is particularly suitable as a sliding door lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention.

[0042] Figure 2 The figure is a schematic diagram of the structure of the embodiment of the present invention when the lock tongue is extended.

[0043] Figure 3 It is a schematic diagram of the structure of the embodiment of the present invention when the lock tongue is retracted.

[0044] Figure 4 This is a schematic diagram of the handle transmission assembly according to an embodiment of the present invention when the lock tongue is extended.

[0045] Figure 5 It is a schematic diagram of the handle transmission assembly of an embodiment of the present invention when the handle is unlocked.

[0046] Figure 6 This is a schematic diagram of a handle locking assembly according to an embodiment of the present invention when the handle is in an unlocked state.

[0047] Figure 7 FIG. 1 is a schematic diagram of a handle locking assembly according to an embodiment of the present invention in a handle locking state.

[0048] Figure 8 It is a schematic diagram of the locking tongue locking assembly of the embodiment of the present invention in its locking tongue locked state.

[0049] Fig. 9 This is a schematic diagram of a bolt automatically popping out when the bolt locking assembly according to an embodiment of the present invention is in a pressed and unlocked state.

[0050] Fig.10 for Figure 8 A magnified image of area A.

[0051] Fig.11 This is a schematic diagram of a first handle locking mode according to an embodiment of the present invention.

[0052] Fig.12 Schematic diagram of a second handle locking mode according to an embodiment of the present invention. DETAILED DESCRIPTION

[0053] The present invention will be described in further detail below with reference to the accompanying drawings and in combination with embodiments, but the present invention is not limited to the examples given.

[0054] Example

[0055] like Figures 1 to 3 As shown, the handle locking mechanical lock of this embodiment includes a lock shell 01, in which a lock tongue 02, a dial rod 03 and a push piece 04 are arranged, and a side plate of the lock shell 01 is provided with a through hole for the lock tongue 02 to enter and exit, the dial rod 03 is rotatably connected to the lock shell 01, the dial rod 03 is transmission-connected to the push piece 04, and the push piece 04 is fixedly connected to the lock tongue 02.

[0056] The mechanical lock also includes a handle transmission assembly, which includes a handle 05 located outside the lock shell 01, a handle dial 06 and a handle lever 07 located inside the lock shell 01; the handle 05 passes through the lock shell 01 and is fixedly connected to the handle dial 06, the handle dial 06 is connected to the handle lever 07 for transmission, and the handle lever 07 is connected to the dial lever 03 for transmission.

[0057] The mechanical lock also includes a handle locking assembly, which includes a toggle wheel 08, a transition lever 09 and a locking block 10. The toggle wheel 08 and the transition lever 09 are respectively rotatably connected to the lock housing 01. The toggle wheel 08 has an extension rod 11, which is transmission-connected to one end of the transition lever 09. The other end of the transition lever 09 is transmission-connected to the locking block 10. The locking block 10 and the lock housing 01 form a moving pair with a determined moving direction; the handle wheel 06 has a first locking structure 12, and the locking block 10 has a second locking structure 13. The first and second locking structures 12 and 13 match each other.

[0058] The handle lock assembly has the following states: (1) the toggle wheel 08 rotates forward under the action of external force and drives the transition lever 09 to rotate through its extension rod 11, the transition lever 09 toggles the locking block 10 and makes its second locking structure 13 match the first locking structure 12 of the handle wheel 06, and the handle lock state. (2) the toggle wheel 08 rotates reversely under the action of external force and drives the transition lever 09 to rotate through its extension rod 11, the transition lever 09 toggles the locking block 10 and makes its second locking structure 13 disengage from the first locking structure 12 of the handle wheel 06, and the handle unlock state.

[0059] Specifically, if Figure 4As shown, the dial lever 03 has a fixed rotation axis, and the dial lever 03 forms a rotating pair with axial constraint with the lock housing 01 at its rotation axis. One end of the push piece 04 is fixedly connected to the lock tongue 02, and the other end of the push piece 04 has a groove 14, and the end of the dial lever 03 extends into the groove 14; the movement direction of the dial lever 03, the movement direction of the push piece 04, and the movement direction of the lock tongue 02 are located in the same plane or in different planes parallel to each other.

[0060] Specifically, if Figure 4 , Figure 5 As shown, in the handle transmission assembly, the handle 05, the handle wheel 06, and the handle lever 07 respectively have a fixed rotation axis, and the handle wheel 06 and the handle lever 07 respectively form a rotating pair with an axial constraint with the lock housing 01 at their rotation axis, the handle 05 passes through the lock housing 01 at its rotation axis and is coaxially fixed to the handle wheel 06, the handle wheel 06 has a driving protrusion 15, one end of the handle lever 07 is provided with a first cylindrical component 16, the driving protrusion 15 is in contact with the first cylindrical component 16, and the other end of the handle lever 07 is in contact with the wheel lever 03; the movement direction of the handle 05, the movement direction of the handle wheel 06, the movement direction of the handle lever 07, and the movement direction of the wheel lever 03 are located in the same plane or in different planes parallel to each other.

[0061] The handle transmission assembly comprises: the handle 05 rotates under the action of external force and drives the handle dial wheel 06 to rotate, the handle dial wheel 06 pushes the first columnar component 16 with its dial protrusion 15, the handle dial rod 07 rotates accordingly and pushes the dial wheel rod 03, the dial wheel rod 03 drives the push piece 04 to move, and the push piece 04 drives the lock tongue 02 to retract the handle unlocking state of the lock shell 01.

[0062] Specifically, if Figure 6 , Figure 7 As shown, in the handle locking assembly, the toggle wheel 08 and the transition lever 09 respectively have a fixed rotation axis, and the toggle wheel 08 and the transition lever 09 respectively form a rotation pair with axial constraint with the lock housing 01 at their rotation axis; the end of the extension rod 11 of the toggle wheel 08 has a fork 17, and one end of the transition lever 09 extends into the fork 17; the locking block 10 is provided with a groove or a through hole 18, and the other end of the transition lever 09 extends into the groove or the through hole 18; the lock housing 01 is provided with a slide groove 19 matching the locking block 10, and the locking block 10 is placed in the slide groove 19; the movement direction of the toggle wheel 08, the movement direction of the transition lever 09, the movement direction of the locking block 10, and the movement direction of the handle toggle wheel 06 are located in the same plane or in different planes parallel to each other.

[0063] The rotation axis of the toggle wheel 08 coincides with the rotation axis of the toggle wheel rod 03; the handle locking assembly also includes a lock core 20, a twist handle (not shown in the figure), and a locking spring 22; the outer end of the lock core 20 has a keyhole and is exposed on one side of the lock shell 01 (not shown in the figure), and the inner end of the lock core 20 is provided with a rotating handle 23 located in the lock shell 01; the toggle wheel 08 is provided with a first extension arm 24 and a second extension arm 25 along its radial direction, and the rotating handle 23 is located between the first extension arm 24 and the second extension arm 25; the twist handle is located on the other side of the lock shell 01 away from the outer end of the lock core 20, and the twist handle has a fixed rotation axis. Its rotation axis passes through the lock housing 01 and is coaxially fixed to the toggle wheel 08; the locking spring 22 is located between the locking block 10 and the lock housing 01, the lock housing 01 is provided with a first mounting column 26, the locking spring 22 is placed on the first mounting column 26, the locking block 10 has a first synapse 27, one end of the locking spring 22 is against the lock housing 01, the locking spring 22 is provided with a second synapse 28 near the other end thereof, and the first synapse 27 is against the second synapse 28; the movement direction of the rotating handle 23, the movement direction of the twisting handle, and the movement direction of the toggle wheel 08 are located in the same plane or in different planes parallel to each other.

[0064] When the handle locking assembly is in the handle locking state, the rotating handle 23 abuts against the first extension arm 24, and the first synapse 27 abuts against one side of the second synapse 28; when the handle locking assembly is in the handle unlocking state, the rotating handle 23 abuts against the second extension arm 25, and the first synapse 27 abuts against the other side of the second synapse 28.

[0065] Specifically, the first locking structure 12 of the handle wheel 06 is a protruding fork 29 extending from the handle wheel 06, and the protruding fork 29 has a fork opening 48. The second locking structure 13 of the locking block 10 is a limiting column 30 fixedly connected to the locking block 10; the plane where the protruding fork 29 is located, the plane where the fork opening 48 is located, and the plane where the handle wheel 06 is located coincide with or are parallel to each other; the limiting column 30 is perpendicular to the plane where the fork opening 48 is located.

[0066] More specifically, if Fig.11 , Fig.12 As shown, in the handle transmission assembly, the handle 05 includes an inside door handle and an outside door handle (not shown in the figure), and the handle dial 06 includes a coaxially arranged inside door handle dial 061 and an outside door handle dial 062; the inside door handle dial 061 and the outside door handle dial 062 respectively form a rotating pair with axial constraint with the lock housing 01 at their rotation axis; the inside door handle passes through the lock housing 01 at its rotation axis and is coaxially fixed to the inside door handle dial 061, and the outside door handle passes through the lock housing 01 at its rotation axis and is coaxially fixed to the outside door handle dial 062; the inside door handle dial 061 and the outside door handle dial 062 respectively have a toggle protrusion 151, 152, and each of the toggle protrusions 151, 152 is respectively in contact with the first cylindrical member 16 of the handle lever 07.

[0067] The first locking structure 12 of the inside door handle wheel 061 is an inside door protruding fork 291 extending from the inside door handle wheel 061, and the inside door protruding fork 291 has an inside door fork opening 481; the first locking structure 12 of the outside door handle wheel 062 is an outside door protruding fork 292 extending from the outside door handle wheel 062, and the outside door protruding fork 292 has an outside door fork opening 482.

[0068] The second locking structure 13 of the locking block 10 includes a protruding block 31 located at the end of the locking block 10. The protruding block 31 has a groove 32 opening toward the outer door handle dial 062. A limiting column 30 is provided in the groove 32, and the limiting column 30 matches the outer door fork 482.

[0069] The limiting column 30 is cylindrical. When the limiting column 30 extends from one side wall of the groove 32 to the other side wall of the groove 32, the limiting column 30 is a full column, the outer fork 482 is a circle or an oblong that can match the limiting column 30, and the inner fork 481 is an angle formed by the intersection of two straight lines ( Fig.11 When the limiting column 30 extends from one side wall of the groove 32 to the middle of the groove 32, the limiting column 30 is a half column, and the position of the limiting column 30 corresponds to the fork 482 outside the door, and the fork 482 outside the door is a circle or an oblong that can match the limiting column 30 ( Fig.12 In this embodiment, when the limiting column 30 is a half column, a screw or a stud can be used as the limiting column.

[0070] Specifically, a rotary spring 33 and a second mounting column 34 are also provided in the lock shell 01. The rotary spring 33 is placed on the second mounting column 34. One end of the rotary spring 33 is abutted against the lock shell 01 or a limiting column of the lock shell 01 (the third mounting column 42 in this embodiment, which can also be changed to other limiting columns depending on the situation), and the other end of the rotary spring 33 is abutted against the end of the lock tongue 02 close to the push piece 04.

[0071] like Figure 8 , Fig. 9 As shown, a deadbolt locking assembly is also provided in the lock housing 01, and the deadbolt locking assembly includes a pressing column 35, a locking piece 36 and a return spring 37; the locking piece 36 has a fixed rotation axis, and the locking piece 36 forms a rotating pair with an axial constraint with the lock housing 01 at its rotation axis; one end of the pressing column 35 is exposed from the lock housing 01 and forms a pressing end 38, and the other end of the pressing column 35 is inclined, and one end of the locking piece 36 is provided with a second cylindrical member 39, and the other end of the pressing column 35 is against the second cylindrical member 39, and the other end of the locking piece 36 has a locking tip 40, and the push piece 04 has a card slot 41 (as shown in FIG. 4 ) that matches the locking tip 40. Fig.10As shown); the pressing column 35 is provided with a long hole 43, the lock housing is provided with a third cylindrical member 44, the third cylindrical member 44 is located in the long hole 43, and the pressing column 35 and the lock housing 01 form a moving pair; the lock housing 01 is provided with a third mounting column 42 on the side of the locking piece 36 away from the pressing column 35, and the return spring 37 is arranged on the third mounting column 42, one end of the return spring 37 is against the lock housing 01, and the other end of the return spring 37 is against the other end of the locking piece 36; the movement direction of the pressing column 35, the movement direction of the locking piece 36, and the movement direction of the push piece 04 are located in the same plane or in different planes parallel to each other;

[0072] The bolt locking assembly has the following specific states: (1) When the push piece 04 drives the bolt 02 to retract into the lock housing 01 under the pull of the dial rod 03, the return spring 37 presses against the other end of the locking piece 36, so that the locking tip 40 of the locking piece 36 slides into the slot 41 of the push piece 04, thereby locking the push piece 04, and one end of the locking piece 36 pushes the pressing column 35 through the second cylindrical member 39, so that the pressing end 38 of the pressing column 35 is exposed from the lock housing 01 or is flush with the surface of the lock housing 01, and the bolt is locked. (2) When the pressing end 38 of the pressing column 35 is pressed by an external force, the other end of the pressing column 35 pushes one end of the locking piece 36 through the second cylindrical member 39 to rotate it, and the other end of the locking piece 36 rotates accordingly and causes the locking tip 40 to slide out of the slot 41 of the push piece 04, and the lock is locked.

[0073] The mechanical lock also includes a buckle box, which is composed of a side plate 45 and a box body 46 fixedly connected. The side plate 45 has a through hole (not shown in the figure) for the lock tongue 02 to enter and exit. The box body 46 is connected to the through hole, and the box body 46 matches the lock tongue 02; the side plate 45 is also provided with a button top rod 47, and the button top rod 47 matches the pressing end 38 of the pressing column 35.

[0074] In summary, the mechanical lock of this embodiment can realize the following functions: (1) Handle unlocking: By operating the handle 05, the dial wheel rod 03 is driven to drive the lock tongue 02 to retract into the lock housing 01 through the push piece 04, thereby unlocking. (2) Handle locking and unlocking: By operating the lock cylinder 20 or twisting the hand to drive the dial wheel 08, it drives the locking block 10 to lock or unlock the handle dial wheel 06 through the transition lever 09, thereby locking or unlocking the handle 05. (3) Different locking modes for the inner door handle and the outer door handle. (4) Locking of the lock tongue and the automatic ejection of the lock tongue when the top rod touches it.

[0075] It should be noted that the lock tongue 02 is a square tongue with a tongue hook. The specific structure of the lock tongue 02 is the same as the utility model patent CN201520020109.1 authorized by the applicant, and its tongue hook can be automatically extended or retracted. The dial rod 03, the dial wheel 08, and the handle dial wheel 06 are respectively provided with a hollow spline rod at their rotation axis to form a rotating pair with the lock housing 01. A cylindrical member is provided between the inner door handle dial wheel 061 and the outer door handle dial wheel 062 so that the two can be coaxially arranged. These are technical means that can be easily understood and implemented by those skilled in the art, and the present invention will not repeat them.

[0076] In addition to the above embodiments, the present invention may also have other implementation modes. Any technical solution formed by equivalent replacement or equivalent transformation falls within the protection scope required by the present invention.

Claims

1. A handle-locking mechanical lock, comprising a lock housing, wherein a lock tongue, a dial lever and a push piece are arranged in the lock housing, a through hole for the lock tongue to enter and exit is arranged on a side plate of the lock housing, the dial lever is rotatably connected to the lock housing, the dial lever is transmission-connected to the push piece, and the push piece is fixedly connected to the lock tongue; wherein the feature is that: The mechanical lock further comprises a handle transmission assembly, the handle transmission assembly comprising a handle located outside the lock housing, a handle dial wheel and a handle lever located inside the lock housing; the handle passes through the lock housing and is fixedly connected to the handle dial wheel, the handle dial wheel is in transmission connection with the handle lever, and the handle lever is in transmission connection with the dial wheel lever; The mechanical lock further comprises a handle locking assembly, which comprises a toggle wheel, a transition lever and a locking block, wherein the toggle wheel and the transition lever are respectively rotatably connected to the lock housing, the toggle wheel has an extension rod, the extension rod is in transmission connection with one end of the transition lever, the other end of the transition lever is in transmission connection with the locking block, and the locking block and the lock housing form a moving pair with a determined moving direction; the handle toggle wheel has a first locking structure, the locking block has a second locking structure, and the first and second locking structures match each other; The handle locking assembly has a handle locking state in which the toggle wheel rotates forward under the action of an external force and drives the transition lever to rotate through its extension rod, and the transition lever toggles the locking block and makes its second locking structure match the first locking structure of the handle wheel; The handle locking assembly also has: the toggle wheel rotates in the opposite direction under the action of external force and drives the transition lever to rotate through its extension rod, and the transition lever toggles the locking block and makes its second locking structure break away from the handle unlocking state of the first locking structure of the handle toggle wheel.

2. The handle locking type mechanical lock according to claim 1, characterized in that: The dial lever has a fixed rotation axis, and the dial lever forms a rotation pair with an axial constraint with the lock housing at the rotation axis thereof; one end of the push piece is fixedly connected to the lock tongue, and the other end of the push piece has a groove, and the end of the dial lever extends into the groove; the movement direction of the dial lever, the movement direction of the push piece, and the movement direction of the lock tongue are located in the same plane or in different planes parallel to each other; The handle, the handle dial wheel and the handle lever respectively have a fixed rotation axis, the handle dial wheel and the handle lever respectively form a rotation pair with an axial constraint with the lock housing at their rotation axis, the handle passes through the lock housing at its rotation axis and is coaxially fixed to the handle dial wheel, the handle dial wheel has a toggle protrusion, one end of the handle lever is provided with a first cylindrical component, the toggle protrusion contacts the first cylindrical component, and the other end of the handle lever contacts the dial wheel rod; the movement direction of the handle, the movement direction of the handle dial wheel, the movement direction of the handle dial rod, and the movement direction of the dial wheel rod are located in the same plane or in different planes parallel to each other; The handle transmission assembly comprises: the handle rotates under the action of external force and drives the handle dial wheel to rotate, the handle dial wheel pushes the first columnar component with its dialing protrusion, the handle dial rod rotates accordingly and pushes the dial wheel rod, the dial wheel rod drives the push piece to move, and the push piece drives the lock tongue to retract the handle unlocking state of the lock shell.

3. The handle locking type mechanical lock according to claim 1 or 2, characterized in that: The toggle wheel and the transition lever respectively have a fixed rotation axis, and the toggle wheel and the transition lever respectively form a rotating pair with axial constraint with the lock shell at their rotation axis; the end of the extension rod of the toggle wheel has a fork, and one end of the transition lever extends into the fork; the locking block is provided with a groove or a through hole, and the other end of the transition lever extends into the groove or the through hole; the lock shell is provided with a slide groove matching the locking block, and the locking block is placed in the slide groove; the movement direction of the toggle wheel, the movement direction of the transition lever, the movement direction of the locking block, and the movement direction of the handle wheel are located in the same plane or in different planes parallel to each other.

4. The handle locking type mechanical lock according to claim 3, characterized in that: The rotation axis of the toggle wheel coincides with the rotation axis of the toggle wheel rod; the handle locking assembly also includes a lock core, a twist handle, and a locking spring; the outer end of the lock core has a keyhole and is exposed on one side of the lock shell, and the inner end of the lock core is provided with a rotating handle located in the lock shell; the toggle wheel is provided with a first extension arm and a second extension arm along its radial direction, and the rotating handle is located between the first extension arm and the second extension arm; the twist handle is located on the other side of the lock shell away from the outer end of the lock core, the twist handle has a fixed rotation axis, and the twist handle passes through the lock shell at its rotation axis and is coaxially fixed to the toggle wheel; the locking spring is located between the locking block and the lock shell, the lock shell is provided with a first mounting column, the locking spring is arranged on the first mounting column, the locking block has a first synapse, one end of the locking spring is against the lock shell, and the locking spring is provided with a second synapse near the other end thereof, and the first synapse is against the second synapse; the movement direction of the rotating handle, the movement direction of the twist handle, and the movement direction of the toggle wheel are located in the same plane or in different planes parallel to each other; When the handle locking assembly is in the handle locking state, the rotating handle abuts against the first extension arm, and the first synapse abuts against one side of the second synapse; when the handle locking assembly is in the handle unlocking state, the rotating handle abuts against the second extension arm, and the first synapse abuts against the other side of the second synapse.

5. The handle locking type mechanical lock according to claim 3, characterized in that: The first locking structure of the handle wheel is a protruding fork extending from the handle wheel, and the protruding fork has a fork opening. The second locking structure of the locking block is a limiting column fixed to the locking block; the plane where the protruding fork is located, the plane where the fork opening is located, and the plane where the handle wheel is located coincide with or are parallel to each other; the limiting column is perpendicular to the plane where the fork opening is located.

6. The handle locking type mechanical lock according to claim 5, characterized in that: In the handle transmission assembly, the handle includes an inner door handle and an outer door handle, and the handle dial includes an inner door handle dial and an outer door handle dial coaxially arranged; the inner door handle dial and the outer door handle dial respectively form a rotating pair with axial constraints with the lock housing at their rotation axes; the inner door handle passes through the lock housing at its rotation axis and is coaxially fixedly connected to the inner door handle dial, and the outer door handle passes through the lock housing at its rotation axis and is coaxially fixedly connected to the outer door handle dial; The inner door handle dial wheel and the outer door handle dial wheel each have a dial protrusion, and each dial protrusion is in contact with the first columnar component of the handle lever; The first locking structure of the inner door handle dial wheel is a door inner protruding fork extending from the door inner handle dial wheel, and the door inner protruding fork has a door inner fork opening; The first locking structure of the outer door handle dial wheel is an outer door protruding fork extending from the outer door handle dial wheel, and the outer door protruding fork has an outer door fork opening; The second locking structure of the locking block comprises a protruding block at the end of the locking block, wherein the protruding block has a groove opening toward the outer door handle dial wheel, a limiting column is arranged in the groove, and the limiting column matches the outer door fork.

7. The handle locking type mechanical lock according to claim 6, characterized in that: The limiting column is cylindrical; When the limiting column extends from one side wall of the groove to the other side wall of the groove, the limiting column is a full column, the outer fork of the door is a circle or an oblong that can match the limiting column, and the inner fork of the door is an angle formed by the intersection of two straight lines; When the limiting column extends from one side wall of the groove to the middle of the groove, the limiting column is a half column, and the position of the limiting column corresponds to the fork outside the door, and the fork outside the door is circular or oblong that can match the limiting column.

8. The handle locking type mechanical lock according to claim 1 or 2, characterized in that: A rotary spring and a second mounting column are also provided in the lock housing. The rotary spring is placed on the second mounting column. One end of the rotary spring abuts against the lock housing or a limiting column of the lock housing, and the other end of the rotary spring abuts against the end of the lock tongue close to the push piece.

9. The handle locking type mechanical lock according to claim 8, characterized in that: The lock shell is also provided with a lock tongue locking assembly, and the lock tongue locking assembly includes a pressing column, a locking piece and a return spring; the locking piece has a fixed rotation axis, and the locking piece forms a rotating pair with an axial constraint with the lock shell at its rotation axis; one end of the pressing column exposes the lock shell and forms a pressing end, the other end of the pressing column is inclined, one end of the locking piece is provided with a second cylindrical component, the other end of the pressing column is abutted against the second cylindrical component, the other end of the locking piece has a locking tip, and the push piece has a card groove matching the locking tip; the pressing column is provided with a long hole, and the lock shell is provided with a third cylindrical component, and the third cylindrical component is located in the long hole, and the pressing column and the lock shell form a moving pair; the lock shell is provided with a third mounting column on the side of the locking piece away from the pressing column, and the return spring is arranged on the third mounting column, one end of the return spring abuts against the lock shell, and the other end of the return spring abuts against the other end of the locking piece; the movement direction of the pressing column, the movement direction of the locking piece, and the movement direction of the push piece are located in the same plane or in different planes parallel to each other; The bolt locking assembly has the following features: when the push piece drives the bolt to retract into the lock housing under the pull of the dial rod, the return spring abuts against the other end of the locking piece, so that the locking tip of the locking piece slides into the slot of the push piece to lock the push piece, and one end of the locking piece pushes the pressing column through the second columnar member, so that the pressing end of the pressing column is exposed from the lock housing or is flush with the surface of the lock housing, thus achieving the bolt locking state; The bolt locking assembly also has: when the pressing end of the pressing column is pressed by external force, the other end of the pressing column pushes one end of the locking plate through the second cylindrical component to make it rotate, and the other end of the locking plate rotates accordingly and makes the locking tip slide out of the card slot of the push plate to enter a pressed and unlocked state.

10. The handle locking type mechanical lock according to claim 9, characterized in that: The mechanical lock also includes a buckle box, which is composed of a side plate and a box body fixedly connected. The side plate has a through hole for the lock tongue to enter and exit, and the box body is connected to the through hole. The box body matches the lock tongue; the side plate is also provided with a button push rod, and the button push rod matches the pressing end of the pressing column.

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