Handle locking mechanism

Abstract

The utility model discloses a handle locking mechanism, which comprises a lock shell, a handle, a handle and a locking mechanism, a first handle; a second handle; one end of the counter locking mechanism is located in a first operation hole in the surface of the first handle, the other end of the counter locking mechanism penetrates through the lock shell and the rotating mechanism and is exposed out of a second operation hole in the surface of the second handle, and the counter locking mechanism further comprises an upper locking piece moving synchronously with the counter locking mechanism; the first operation hole and the second operation hole are collinear or parallel, and when the counter locking mechanism is located at the unlocking end of the first operation hole and the unlocking end of the second operation hole, the upper locking piece is separated from the lock shell; when the counter locking mechanism is located at the locking ends of the first operation hole and the second operation hole, the locking piece is inserted into the lock shell to limit rotation of the rotating mechanism. Under the emergency condition, the counter locking mechanism can be controlled through a foreign object such as a screwdriver from the first operation hole of the first lever handle to achieve unlocking of the counter locking mechanism, and therefore the effect of opening a door emergently from the outside is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to door lock technical field especially relates to a handle locking mechanism. BACKGROUND

[0002] As one of the most common door types in daily life, the safety and convenience of the vertical hinged door have always been the focus of attention. The traditional vertical hinged door handle locking mechanism, especially the design of the mortise lock, although to a large extent guarantees the safety of the indoor space, but also has some problems.

[0003] Specifically, the traditional mortise lock design usually only allows the locking operation from the inside of the door, and the outside needs to use the key to open. This design indeed plays a good anti-theft role under normal circumstances, but in emergency situations such as fire, earthquake and other emergencies, if the indoor personnel cannot open the door in time for various reasons, and the external rescue personnel cannot directly open the door lock from the outside, this will greatly increase the difficulty of rescue, and even may lead to irreparable consequences. SUMMARY

[0004] In order to overcome at least one of the defects of the prior art described above, the utility model provides a handle locking mechanism. The door opening problem in emergency situations can be solved, and the internal locking effect under normal conditions is not affected.

[0005] The utility model adopts the technical scheme that:

[0006] A handle locking mechanism, comprising: a lock shell, the lock shell has a lock cylinder and a rotating mechanism for rotating control of the extension and retraction of the lock tongue in the lock cylinder; a first handle, the first handle is assembled on one side of the lock shell and is drivingly connected with the rotating mechanism; a second handle, the second handle is assembled on the other side of the lock shell and is drivingly connected with the rotating mechanism; a reverse locking mechanism, one end of the reverse locking mechanism is located in a first operation hole on the surface of the first handle, the other end passes through the lock shell and the rotating mechanism and is exposed outside a second operation hole on the surface of the second handle, the reverse locking mechanism further comprises a locking piece that moves synchronously therewith; wherein, the first operation hole and the second operation hole are collinear or parallel, when the reverse locking mechanism is located at the unlocking end of the first operation hole and the second operation hole, the locking piece is separated from the lock shell; when the reverse locking mechanism is located at the locking end of the first operation hole and the second operation hole, the locking piece is inserted into the lock shell to limit the rotation of the rotating mechanism.

[0007] By adopting the above scheme, whether indoor or outdoor personnel can control the extension and retraction of the lock tongue in the lock cylinder by operating the corresponding handle, thereby realizing the door opening action. When the reverse locking mechanism is at the unlocking end, the locking piece is separated from the lock shell, allowing the rotating mechanism to rotate, thereby realizing unlocking; when the reverse locking mechanism is at the locking end, the locking piece is inserted into the lock shell, limiting the rotation of the rotating mechanism, thereby realizing locking. Under normal circumstances, the reverse locking mechanism can be operated from the second operation hole of the second handle, and the locking and unlocking operations are convenient. Since the reverse locking mechanism is located in the first operation hole of the first handle, ordinary people cannot easily operate it, thereby realizing safety under normal circumstances. In an emergency, the reverse locking mechanism can be unlocked by operating the reverse locking mechanism from the first operation hole of the first handle using an external object such as a screwdriver, thereby ensuring the effect of emergency opening from the outside.

[0008] Further, the lock shell includes a first lock shell and a second lock shell, and a rotating hole for rotating the rotating mechanism is arranged in the middle of the first lock shell and the second lock shell. The rotating mechanism includes a square rod and first and second rotating pieces assembled at both ends of the square rod. One side of the first lock shell and / or the second lock shell is provided with a lock hole for plugging with the locking piece. The side of the first rotating piece and / or the second rotating piece facing the lock hole is provided with an outwardly protruding clamping wall, and the clamping wall is provided with a avoiding slot corresponding to the lock hole.

[0009] By adopting the above scheme, when the locking piece is deeply inserted into the lock hole, it is just located in the avoiding slot. When the first handle or the second handle is rotated, the first rotating piece and the second rotating piece cannot be rotated due to the abutting effect of the avoiding slot and the locking piece, thereby realizing the reverse locking effect.

[0010] Further, the lock hole is provided with a stop block at both ends in the rotating direction of the rotating mechanism, and the stop block is used to provide an abutting force for the locking piece.

[0011] By adopting the above scheme, the design of the stop block not only enhances the structural strength of the lock shell, but also increases the abutting force on the locking piece, providing a stable abutting point for the locking piece, ensuring the accuracy and reliability of the locking and unlocking actions.

[0012] Further, the reverse locking mechanism includes a first reverse locking piece, a first driving piece and a push rod are arranged on the first reverse locking piece, the first driving piece is not higher than the first operation hole; a second reverse locking piece, a second driving piece and a locking piece mounting slot are arranged on the second reverse locking piece, the second reverse locking piece abuts against the push rod, and the second driving piece is not lower than the second operation hole.

[0013] By adopting the above scheme, the first reverse locking piece and the second reverse locking piece are linked when unlocking, and whether indoor or outdoor personnel can conveniently control the unlocking operation of the locking piece by operating the corresponding driving block.

[0014] Further, the anti-lock mechanism further comprises a limiting piece, a limiting protrusion is arranged on the limiting piece, a clamping block corresponding to the limiting protrusion is arranged on the second anti-lock piece, and the limiting protrusion and the clamping block are used to make the anti-lock mechanism always be in the unlocking end or the locking end in the first operation hole and the second operation hole.

[0015] By adopting the above scheme, the design of the limiting piece ensures that the anti-lock mechanism cannot be accidentally moved to the intermediate position during operation, thereby improving the overall safety.

[0016] Further, the clamping block is provided with a reset slope on both sides, and the limiting protrusion has a tendency to slide to the bottom of the reset slope.

[0017] By adopting the above scheme, the design of the reset slope makes it only need to exert a certain force to make the limiting protrusion slide through the clamping block when the state of the anti-lock mechanism needs to be changed, thereby realizing easy switching of the anti-lock mechanism.

[0018] Further, at least two opposite clamping ribs are arranged in the locking piece mounting groove, a clamping edge for clamping the clamping ribs is arranged at one end of the locking piece, and the other end of the locking piece extends in the direction of the first handle.

[0019] By adopting the above scheme, the design of the clamping ribs and the clamping edge ensures the stability and firmness of the locking piece in the mounting groove, thereby improving the reliability of the overall structure.

[0020] Further, the at least two opposite clamping ribs are linearly arranged, and the arrangement direction is from the first handle to the second handle, so as to control the length of the locking piece extending out of the locking piece mounting groove.

[0021] By adopting the above scheme, the linear arrangement of the clamping ribs not only enhances the stability of the locking piece, but also adjusts the matching degree between the locking piece and the lock shell by controlling the extension length, thereby ensuring the smoothness of the locking and unlocking actions.

[0022] Further, the first operation hole is further provided with a cover for covering the first operation hole.

[0023] By adopting the above scheme, the design of the cover not only improves the overall aesthetics, but also plays a dustproof and protective role, and at the same time, it is difficult for the outside to realize the unlocking operation in the normal state.

[0024] Further, the first handle and the second handle each comprise a holding section, a connecting section, one end of the connecting section is assembled with the lock shell, the other end is vertically connected with the holding section, and the first operation hole and the second operation hole are located on the side of the connecting section facing the holding section.

[0025] By adopting the above scheme, the first operation hole and the second operation hole are hidden, the child is less likely to touch and knock, and the service life is improved.

[0026] In summary, the handle locking mechanism has the following technical effects:

[0027] 1. The high security of the traditional mortise lock under normal circumstances is retained, and the problem of difficult door opening from the outside under emergency is solved. Through the design of the reverse locking mechanism, external personnel can quickly unlock without a key under emergency, for example, a simple tool such as a screwdriver can be used to operate the reverse locking mechanism from the first operation hole to achieve quick unlocking, greatly improving the emergency response speed and rescue efficiency, and reducing the risk of personnel casualties and property loss;

[0028] 2. Whether indoor or outdoor personnel, can control the extension and retraction of the lock tongue in the lock cylinder by operating the corresponding handle, and realize the door opening action. The design of the reverse locking mechanism also makes the locking and unlocking operation simple and fast, without complex steps, and the operation is simple;

[0029] 3. The design of the reverse locking mechanism located at the second operation hole of the second handle in the outward convex state makes the locking and unlocking operation convenient and intuitive, and the user can easily complete it without effort, and the reverse locking mechanism located at the second operation hole of the first handle is in the inward recessed state, which ensures the effect that the door cannot be unlocked or is difficult to unlock under normal circumstances. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a three-dimensional structure schematic diagram of the embodiment of the utility model;

[0031] Figure 2 It is a local explosion structure schematic diagram of the embodiment of the utility model;

[0032] Figure 3 It is a second reverse locking piece disassembly structure schematic diagram of the embodiment of the utility model;

[0033] Figure 4 It is a second reverse locking piece installation structure schematic diagram of the embodiment of the utility model;

[0034] Figure 5 It is a locking piece and lock shell disassembly structure schematic diagram of the embodiment of the utility model.

[0035] Wherein, the reference signs mean as follows: 1, lock shell; 11, first lock shell; 12, second lock shell; 13, rotating hole; 14, rotating mechanism; 141, first rotating piece; 142, second rotating piece; 143, lock core; 144, square rod; 145, clamping wall; 146, avoiding groove; 15, lock hole; 151, stop block; 2, first handle; 21, first operation hole; 211, cover; 22, holding section; 23, connecting section; 3, second handle; 31, second operation hole; 4, anti-lock mechanism; 41, first anti-lock piece; 411, first actuating piece; 412, push rod; 42, second anti-lock piece; 421, second actuating piece; 422, locking piece installation groove; 4221, clamping rib; 423, clamping block; 4231, reset slope; 43, locking piece; 431, clamping edge; 44, limiting piece; 441, limiting block; 5, bolt; 6, door body. DETAILED DESCRIPTION

[0036] In order to better understand and implement, the technical solutions in the embodiments of the present application will be described and discussed clearly and completely in the following with reference to the drawings of the present application. Obviously, only some examples of the present application are described here, and not all examples. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the present application.

[0037] In order to facilitate the understanding of the embodiments of the present application, the following will be further explained and described with specific embodiments as examples in combination with the drawings, and each embodiment does not constitute a limitation on the embodiments of the present application.

[0038] In the description of the present application, it should be pointed out that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as limiting the device or element indicated to have a specific orientation, to be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing the specific embodiments, and are not intended to limit the present application.

[0040] Embodiment 1 of the present application refers to Figures 1-5As shown, a handle locking mechanism is disclosed, comprising a lock housing 1, a first handle 2, a second handle 3 and a reverse locking mechanism 4, preferably, the lock housing 1 comprises a first lock housing 11 and a second lock housing 12, which are respectively inserted and assembled from both sides of a door body 6, the lock housing 1 has a lock cylinder 143 and a rotating mechanism 14 for rotating control of the extension and retraction of the lock tongue in the lock cylinder 143, the first lock housing 11 and the second lock housing 12 are provided with a rotating hole 13 in the middle for rotating the rotating mechanism 14, the rotating mechanism 14 comprises a square rod 144 and a first rotating piece 141 and a second rotating piece 142 assembled at both ends of the square rod 144, the first rotating piece 141 and the second rotating piece 142 rotate to control the extension and retraction of the lock tongue of the lock cylinder 143, which is prior art, and the present embodiment will not be described in detail. The first handle 2 is assembled on one side of the lock housing 1, i.e. installed on one side of the first lock housing 11, and is drivingly connected with the rotating mechanism 14, in the present embodiment 1, the first handle 2 is installed on the outer side of the door body 6, the second handle 3 is assembled on the other side of the lock housing 1, i.e. installed on one side of the second lock housing 12, and is drivingly connected with the rotating mechanism 14, in the present embodiment 1, the second handle 3 is installed on the inner side of the door body 6, one end of the reverse locking mechanism 4 is located in the first operating hole 21 on the surface of the first handle 2, the other end passes through the lock housing 1 and the rotating mechanism 14 and is exposed outside the second operating hole 31 on the surface of the second handle 3, the reverse locking mechanism 4 further comprises a locking piece 43 which moves synchronously with the reverse locking mechanism 4, the first operating hole 21 and the second operating hole 31 are collinear or parallel, when the reverse locking mechanism 4 is located at the unlocking end of the first operating hole 21 and the second operating hole 31, the locking piece 43 is separated from the lock housing 1; when the reverse locking mechanism 4 is located at the locking end of the first operating hole 21 and the second operating hole 31, the locking piece 43 is inserted into the lock housing 1 to limit the rotation of the rotating mechanism 14.

[0041] By adopting the above scheme, whether indoor or outdoor personnel can control the extension and retraction of the lock tongue in the lock cylinder 143 by operating the corresponding handle, thereby realizing the door opening action. When the reverse locking mechanism 4 is located at the unlocking end, the locking piece 43 is separated from the lock housing 1, allowing the rotating mechanism 14 to rotate, thereby realizing unlocking; when the reverse locking mechanism 4 is located at the locking end, the locking piece 43 is inserted into the lock housing 1, limiting the rotation of the rotating mechanism 14, thereby realizing locking. Under normal circumstances, the reverse locking mechanism 4 can be operated from the second operating hole 31 of the second handle 3 located on the inner side of the door body 6, the locking and unlocking operation is convenient, since the reverse locking mechanism 4 is located in the first operating hole 21 of the first handle 2, ordinary people are not easy to operate, thus realizing the safety under normal circumstances. In emergency situations, the reverse locking mechanism 4 can be unlocked by an external object such as a screwdriver from the first operating hole 21 of the first handle 2 on the outer side of the door body 6, thereby ensuring the effect of emergency opening from the outside.

[0042] Specifically, in some embodiments, one side of the first lock housing 11 and / or the second lock housing 12 is provided with a lock hole 15 for plugging with the locking piece 43, and one side of the first rotating piece 141 and / or the second rotating piece 142 towards the lock hole 15 is provided with an outwardly protruding clamping wall 145, which is provided with an avoidance groove 146 corresponding to the lock hole 15. When the locking piece 43 is deeply plugged into the lock hole 15, it is just located in the avoidance groove 146. When the first handle 2 or the second handle 3 is rotated, the first rotating piece 141 and the second rotating piece 142 cannot be rotated due to the abutting effect of the avoidance groove 146 and the locking piece 43, thereby realizing the reverse locking effect.

[0043] In some embodiments, in order to improve the locking strength between the locking piece 43 and the lock housing 1 in the reverse locking state, the lock hole 15 is provided with a stop block 151 at both ends in the rotating direction of the rotating mechanism 14, which is used to provide an abutting force for the locking piece 43. Preferably, the stop block is designed as a dam structure, which can provide a greater abutting force for the locking piece 43, avoiding the user from easily damaging the reverse locking mechanism 4 when forcibly rotating the first handle 2 or the second handle 3. The design of the stop block 151 not only enhances the structural strength of the lock housing 1, but also increases the abutting force on the locking piece 43, providing a stable abutting point for the locking piece 43, and ensuring the accuracy and reliability of the locking and unlocking actions.

[0044] In some embodiments, specifically, the reverse locking mechanism 4 includes a first reverse locking piece 41 and a second reverse locking piece 42, which are connected by clamping, screwing, abutting or integration, but are not limited thereto. In this embodiment 1, the first reverse locking piece 41 is provided with an outwardly protruding first actuating piece 411 and a push rod 412, the first actuating piece 411 is not higher than the first operating hole 21, and it is difficult to operate the first actuating piece 411 without external objects such as a screwdriver, and ordinary people cannot know the function and effect of the first actuating piece 411 in the first operating hole 21, thereby ensuring the effect that the unlocking cannot be achieved from the outside in the normal state. Preferably, the first operating hole 21 is further provided with a cover 211 for covering it, which not only improves the overall aesthetics, but also plays a dustproof and protective role, and at the same time, it is difficult to achieve the unlocking operation from the outside in the normal state. The second reverse locking piece 42 is provided with an outwardly protruding second actuating piece 421 and an inwardly recessed locking piece mounting groove 422, the second reverse locking piece 42 abuts against the push rod 412, and the second actuating piece 421 is not lower than the second operating hole 31. The second actuating piece 421 is operated by the people in the room, realizing the unlocking and locking operation of the reverse locking mechanism 4. Through the above structure, the first reverse locking piece 41 and the second reverse locking piece 42 are linked when unlocking, and whether the people are indoors or outdoors, they can conveniently control the unlocking operation of the locking piece 43 by operating the corresponding actuating piece.

[0045] In order to ensure that the anti-lock mechanism 4 does not accidentally move to the intermediate position during operation, in some embodiments, a limiting piece 44 is further provided on the anti-lock mechanism 4, preferably, the limiting piece 44 is provided in the second handle 3 on the inner side of the door body 6, so that the distance between the first anti-lock piece 41 and the limiting piece 44 is farther than the distance between the second anti-lock piece 42 and the limiting piece 44, thus requiring more force to push, which has the advantages of increasing the complexity of the door opening lock in normal state, and reducing the situation of mistaken unlocking caused by factors such as accidental touch. Specifically, the limiting piece 44 is provided with a limiting protrusion 441, the second anti-lock piece 42 is provided with a clamping block 423 corresponding to the limiting protrusion 441, the limiting protrusion 441 and the clamping block 423 are used to make the anti-lock mechanism 4 always be in the unlocking end or the locking end in the first operation hole 21 and the second operation hole 31, and the design of the limiting piece 44 ensures the safety of the whole anti-lock mechanism 4. Preferably, the clamping block 423 is provided with a reset slope 4231 on both sides, the limiting protrusion 441 has a tendency to slide to the slope bottom of the reset slope 4231, and the design of the reset slope 4231 makes it only need to exert a certain force to make the limiting protrusion 441 slide through the clamping block 423 when it is necessary to change the state of the anti-lock mechanism 4, so as to realize the easy switching of the anti-lock mechanism 4.

[0046] In some embodiments, in order to ensure the installation stability and adjustability of the locking piece 43, at least two opposite clamping ribs 4221 are arranged in the locking piece mounting groove 422, one end of the locking piece 43 is provided with a clamping edge 431 clamped with the clamping rib 4221, and the other end of the locking piece 43 extends to the direction of the first handle 2. The design of the clamping rib 4221 and the clamping edge 431 ensures the stability and firmness of the locking piece 43 in the mounting groove, thereby improving the reliability of the overall structure. In this embodiment 1, the clamping rib 4221 is provided with four groups, so that the clamping edge 431 of the locking piece 43 has four clamping structures in the mounting groove, and the length of the locking piece 43 extending out of the mounting groove can be changed according to the installation of different positions, so as to adapt to different thicknesses of the lock shell 1 and the door body 6.

[0047] It should be noted that the at least two opposite clamping ribs 4221 are linearly arranged, and the arrangement direction is from the first handle 2 to the second handle 3, so as to control the length of the locking piece 43 extending out of the locking piece mounting groove 422, the linear arrangement of the clamping rib 4221 not only enhances the stability of the locking piece 43, but also adjusts the matching degree between the locking piece 43 and the lock shell 1 by controlling the extension length, thereby ensuring the smoothness of the locking and unlocking actions.

[0048] In some embodiments, the first handle 2 and the second handle 3 each include a holding section 22 and a connecting section 23, one end of the connecting section 23 is assembled with the lock shell 1, in particular, is drivingly connected with the rotating mechanism 14 in the lock shell 1, and the other end is perpendicularly connected with the holding section 22, the first operation hole 21 and the second operation hole 31 are located on the side of the connecting section 23 facing the holding section 22, that is, on the back side of the holding section 22, the effect of hiding the first operation hole 21 and the second operation hole 31 is achieved, and it is not easy for children to notice, the problem of accidental touch and collision is reduced, and the service life is improved.

[0049] During installation, the first lock shell 11 and the second lock shell 12 are installed from both sides of the door body 6, and the lock cylinder 143 and the rotating mechanism 14 are installed between the first lock shell 11 and the second lock shell 12, the first rotating piece 141 is connected with the rotating mechanism 14 from the outside of the first lock shell 11, and the second rotating piece 142 is connected with the rotating mechanism 14 from the outside of the second lock shell 12, the linkage effect of the first rotating piece 141, the second rotating piece 142 and the rotating mechanism 14 is achieved, and the hollow square rod 144 in the rotating structure penetrates out of the rotating hole 13 of the first lock shell 11 and the rotating hole 13 of the second lock shell 12 at both ends, then the first anti-lock piece 41 is assembled into the first handle 2, and the fixing modes of the two include but are not limited to bolt 5 fixing, at this time, the first actuating piece 411 of the first anti-lock piece 41 is opposite to the first operation hole 21; then the second anti-lock piece 42 is assembled into the second handle 3, and the fixing modes of the two include but are not limited to bolt 5 fixing, at this time, the second actuating piece 421 of the second anti-lock piece 42 is opposite to and protrudes out of the second operation hole 31, finally, after the push rod 412 of the first anti-lock piece 41 is aligned with the square hole, the first handle 2 is fixed with the first rotating piece 141, so that rotating the first handle 2 can drive the first rotating piece 141 and the rotating mechanism 14 to rotate, thereby controlling the movement of the bolt in the lock cylinder 143. After the locking piece 43 is installed in the second anti-lock piece 42 and is aligned with the lock hole 15, the second handle 3 is fixed with the second rotating piece 142, so that rotating the second handle 3 can drive the second rotating piece 142 and the rotating mechanism 14 to rotate, thereby controlling the movement of the bolt in the lock cylinder 143. The protruding second actuating piece 421 of the second handle 3 located inside the door body 6 can control the locking and unlocking operations of the locking piece 43, and the first handle 2 located outside the door body 6 is normally shielded by the installed cover 211 to shield the first operation hole 21. In an emergency, the cover 211 can be pried open by a screwdriver or the like, and the first actuating piece 411 is operated to achieve unlocking, but the locking operation cannot be achieved from the outside of the door body 6.

[0050] In summary, the handle locking mechanism provided by the utility model has the following technical effects:

[0051] 1.Both retain the high security of the traditional mortise lock under normal circumstances, which is locked from the inside and opened by special tools from the outside, and solve the problem of difficult door opening from the outside in emergency situations. Through the design of the reverse locking mechanism 4, in emergency situations, external personnel can quickly unlock without a key, for example, a simple tool such as a screwdriver can be used to operate the reverse locking mechanism 4 from the first operating hole 21 to achieve quick unlocking, greatly improving the emergency response speed and rescue efficiency, and reducing the risk of personnel casualties and property losses;

[0052] 2.Both indoor and outdoor personnel can control the extension and retraction of the locking bolt in the lock cylinder 143 by operating the corresponding handle to achieve the door opening action. The design of the reverse locking mechanism 4 also makes the locking and unlocking operation simple and fast, without complex steps, and the operation is simple;

[0053] 3.The design of the reverse locking mechanism 4 located at the second operating hole 31 of the second handle 3 is convex, making the locking and unlocking operation convenient and intuitive, and the user can easily complete it without effort. The reverse locking mechanism 4 located at the second operating hole 31 of the first handle 2 is concave, ensuring the effect that the door cannot be unlocked or is difficult to unlock from the outside under normal circumstances.

[0054] The technical means disclosed in the utility model scheme is not limited to the technical means disclosed in the above-mentioned embodiments, but also includes technical solutions composed of any combination of the above technical features. It should be noted that for ordinary skilled persons in the art, without departing from the principles of the utility model, a number of improvements and refinements can be made, which are also considered within the scope of protection of the utility model.

Claims

1. A lever lock mechanism characterised in that, The utility model relates to a lock, comprising: a lock housing (1) having a lock cylinder (143) and a rotating mechanism (14) for rotating control of the lock bolt in the lock cylinder (143) to retract and extend; a first handle (2) mounted on one side of the lock housing (1) and drivingly connected with the rotating mechanism (14); a second handle (3) mounted on the other side of the lock housing (1) and drivingly connected with the rotating mechanism (14); a reverse locking mechanism (4) having one end located in a first operating hole (21) on the surface of the first handle (2) and the other end passing through the lock housing (1) and the rotating mechanism (14) and exposed outside a second operating hole (31) on the surface of the second handle (3), the reverse locking mechanism (4) further comprising a locking piece (43) moving synchronously therewith; wherein the first operating hole (21) and the second operating hole (31) are collinear or parallel, when the reverse locking mechanism (4) is located at the unlocking end of the first operating hole (21) and the second operating hole (31), the locking piece (43) is separated from the lock housing (1); when the reverse locking mechanism (4) is located at the locking end of the first operating hole (21) and the second operating hole (31), the locking piece (43) is inserted into the lock housing (1) to limit the rotation of the rotating mechanism (14).

2. A lever lock mechanism according to claim 1, wherein The lock housing (1) comprises a first lock housing (11) and a second lock housing (12), the first lock housing (11) and the second lock housing (12) are provided with a rotating hole (13) in the middle for the rotation of the rotating mechanism (14), the rotating mechanism (14) comprises a square rod (144) and a first rotating piece (141) and a second rotating piece (142) mounted on both ends of the square rod (144), one side of the first lock housing (11) and / or the second lock housing (12) is provided with a lock hole (15) for plugging with the locking piece (43), one side of the first rotating piece (141) and / or the second rotating piece (142) towards the lock hole (15) is provided with a outwardly protruding clamping wall (145), the clamping wall (145) is provided with a avoiding groove (146) corresponding to the lock hole (15).

3. A lever lock mechanism according to claim 2, wherein The lock hole (15) is provided with a stop block (151) at both ends along the rotating direction of the rotating mechanism (14), the stop block (151) is used for providing abutting force for the locking piece (43).

4. A lever lock mechanism according to claim 1, wherein The reverse locking mechanism (4) comprises: a first reverse locking piece (41) provided with an outwardly protruding first actuating piece (411) and a push rod (412) thereon, the first actuating piece (411) is not higher than the first operating hole (21); a second reverse locking piece (42) provided with an outwardly protruding second actuating piece (421) and an inwardly recessed locking piece mounting groove (422) thereon, the second reverse locking piece (42) is in abutment with the push rod (412), the second actuating piece (421) is not lower than the second operating hole (31).

5. A lever lock mechanism according to claim 4, wherein The anti-locking mechanism (4) further comprises a limiting member (44) provided with a limiting protrusion (441), and the second anti-locking member (42) is provided with a clamping block (423) corresponding to the limiting protrusion (441), and the limiting protrusion (441) and the clamping block (423) are used to make the anti-locking mechanism (4) always be in the unlocking end or the locking end in the first operation hole (21) and the second operation hole (31).

6. A lever lock mechanism according to claim 5, wherein The clamping block (423) is provided with a reset slope (4231) on both sides, and the limiting protrusion (441) has a tendency to slide to the bottom of the reset slope (4231).

7. A lever lock mechanism according to claim 4, wherein The locking member mounting groove (422) is provided with at least two opposite clamping ribs (4221), and the locking member (43) is provided with a clamping edge (431) at one end for clamping the clamping ribs (4221), and the other end of the locking member (43) extends towards the first handle (2).

8. A lever lock mechanism according to claim 7, wherein The at least two opposite clamping ribs (4221) are linearly arranged, and the arrangement direction is from the first handle (2) to the second handle (3), so as to control the length of the locking member (43) extending out of the locking member mounting groove (422).

9. A lever lock mechanism according to claim 1, wherein The first operation hole (21) is further provided with a cover (211) for covering it.

10. A lever lock mechanism according to claim 1, wherein The first handle (2) and the second handle (3) each comprise: a holding section (22); a connecting section (23), one end of the connecting section (23) is assembled with the lock shell (1), and the other end is vertically connected with the holding section (22), and the first operation hole (21) and the second operation hole (31) are located on the side of the connecting section (23) facing the holding section (22).

Images