Anti-locking mechanism of handle door lock

Abstract

The utility model relates to an anti-locking mechanism of a handle door lock, comprising an inner base, an inner handle rotatably arranged on the inner base, and an anti-locking component installed on the inner handle, the anti-locking component comprising an anti-locking platform and an anti-locking pull plate, one end of the anti-locking platform is rotatably installed in the handle head of the inner handle, and a boss is arranged on the edge of the other end, and the anti-locking pull plate is slidably arranged in the handle part of the inner handle, and a strip hole connected with the boss is arranged on the end of the anti-locking pull plate facing the anti-locking platform, and an anti-locking groove and an unlocking groove are arranged on the other end, and a positioning spring piece which can cooperate with the anti-locking groove or the unlocking groove is installed on the handle part. When the anti-locking pull plate is pushed, the strip hole will drive the boss to rotate the anti-locking platform, and the anti-locking groove or the unlocking groove on the anti-locking pull plate cooperates with the positioning spring piece, and the anti-locking platform and the anti-locking pull plate arranged in this way will not cause a jamming problem between the two, and the processing requirements are not high, the processing is simple, the operation is convenient, the cost is low, and the assembly requirements are not high.

Description

Technical Field

[0001] The utility model relates to the technical field of door locks, and more specifically, to an anti-locking mechanism of a handle door lock. Background Art

[0002] A door lock is a commonly used door protection device to prevent illegal intrusion, usually including an inner base and an outer base installed on the inner and outer sides of the door panel, and an inner handle and an outer handle are rotatably arranged on the inner base and the outer base respectively; generally, people can drive the lock tongue in the door frame to retract into the lock body by pressing down and rotating the inner handle or the outer handle to achieve the purpose of opening the door;

[0003] In order to prevent people outside the door from unlocking the door by turning the outer handle, a locking assembly for locking the outer handle on the outer base is provided on the outer handle to improve the privacy of the room; one end of the locking assembly is linked to the lock core on the outer handle, and the other end is linked to the anti-lock assembly on the inner handle through a linkage rod; so that people outside the door need to use a key to open the lock core to unlock the door, while people inside the door can operate the anti-lock assembly to lock and unlock the door lock, so the anti-lock assembly is an important accessory of the door lock that is frequently operated;

[0004] For example, a handle door lock disclosed in announcement number CN219118962U discloses a reverse locking mechanism including a reverse locking transmission member and a reverse locking tooth plate, wherein the reverse locking transmission member is rotatably arranged on the handle head, and the reverse locking tooth plate is slidably arranged on the handle portion, wherein the gear portion of the reverse locking transmission member and the rack portion of the reverse locking tooth plate are meshed with each other; when reverse locking the door lock, pushing the reverse locking tooth plate can drive the reverse locking transmission member to drive the linkage bar to rotate, and the linkage bar will drive the locking component on the outer handle, and the locking component will lock the outer handle on the outer base to prevent the outer handle from being locked. The outer base rotates to achieve the purpose of anti-locking the door lock; when unlocking is required, it is only necessary to push the anti-locking tooth plate in the opposite direction to make the linkage bar drive the locking component in the opposite direction, so that the locking component releases the lock of the outer handle; the cooperation mode of the anti-locking tooth plate and the anti-locking transmission member makes it possible to push the anti-locking tooth plate to perform anti-locking or unlocking operations, but the anti-locking tooth plate and the anti-locking transmission member of this method are prone to rack mismatch during the processing process, which requires high precision in the processing of the anti-locking tooth plate and the anti-locking transmission member, is difficult to process, has high cost, and has high requirements for assembly. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an anti-locking mechanism for a handle door lock in view of the deficiencies of the above-mentioned prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides an anti-locking mechanism of a handle door lock, comprising an inner base, on which an inner handle is rotatably provided, and on which an anti-locking component is installed, characterized in that: the anti-locking component comprises an anti-locking platform and an anti-locking pull plate, one end of the anti-locking platform is rotatably installed in the handle head of the inner handle, and the other end is provided with a boss at the edge, the anti-locking pull plate is slidably arranged in the handle portion of the inner handle, the anti-locking pull plate is provided with a strip hole connected to the boss at one end facing the anti-locking platform, and is provided with an anti-locking groove and an unlocking groove at the other end, and a positioning spring piece that can cooperate with the anti-locking groove or the unlocking groove is installed on the handle portion.

[0007] By adopting the above technical solution, when the anti-locking pull plate is pushed, the strip hole will drive the boss to rotate the anti-locking platform, and the anti-locking groove or the unlocking groove on the anti-locking pull plate will cooperate with the positioning spring piece. Through such an arrangement of the anti-locking platform and the anti-locking pull plate, there will be no jamming problem between the two, and the processing requirements are not high, the processing is simple, the operation is convenient, the cost is low, and the assembly requirements are not high.

[0008] The above technical solution is further configured as follows: a sliding groove for sliding the anti-locking pull plate is provided on the handle portion of the inner handle, an anti-locking button window is opened on the bottom wall of the sliding groove, an anti-locking button is provided at one end of the anti-locking pull plate facing the anti-locking button window, and the anti-locking button protrudes from the anti-locking button window.

[0009] The above technical solution is further configured as follows: a positioning groove for installing a positioning spring sheet is provided on one side of the slide groove, and the positioning groove is communicated with the slide groove, and the protrusion of the positioning spring sheet is arranged to protrude toward the slide groove.

[0010] By adopting the above technical solution, the raised portion of the positioning spring piece will cooperate with the anti-locking groove or the unlocking groove to prevent the anti-locking pull plate from sliding.

[0011] The above technical solution is further configured as follows: an inner cover plate is installed above the slide groove, and the inner cover plate covers the anti-locking pull plate.

[0012] The above technical solution is further configured as follows: the anti-locking groove and the unlocking groove are located on the same side.

[0013] By adopting the above technical solution, the anti-locking groove and the unlocking groove are located on the same side, which is convenient for placing the positioning spring piece.

[0014] The above technical solution is further configured as follows: a detachable outer cover is installed on the inner handle.

[0015] The beneficial effect achieved by the utility model is that when the anti-locking pull plate is pushed, the strip hole will drive the boss to rotate the anti-locking platform, and the anti-locking groove or the unlocking groove on the anti-locking pull plate cooperates with the positioning spring piece. Through such an arrangement of the anti-locking platform and the anti-locking pull plate, there will be no jamming problem between the two, and the processing requirements are not high, the processing is simple, the operation is convenient, the cost is low, and the assembly requirements are not high. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0017] Figure 2 It is a schematic diagram of the explosion structure of an embodiment of the utility model;

[0018] Figure 3 This is an installation diagram of the inner handle of the anti-locking component in the embodiment of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the anti-locking assembly in the embodiment of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the inner handle in an embodiment of the utility model. DETAILED DESCRIPTION

[0021] Refer to the attached Figure 1-5 The anti-locking mechanism of the handle door lock of the utility model is further described in detail.

[0022] A reverse locking mechanism for a handle door lock comprises an inner base 1, on which an inner handle 2 is rotatably provided, on which a reverse locking assembly is installed, the reverse locking assembly comprising a reverse locking platform 4 and a reverse locking pull plate 3, one end of the reverse locking platform 4 is rotatably installed in the handle head of the inner handle 2, and a boss 41 is provided at the edge of the other end, the reverse locking pull plate 3 is slidably arranged in the handle portion of the inner handle 2, one end of the reverse locking pull plate 3 facing the reverse locking platform 4 is provided with a strip hole 31 connected to the boss 41, and the other end is provided with a reverse locking groove 32 and an unlocking groove 33, and a positioning spring piece (not shown in the figure) that can cooperate with the reverse locking groove 32 or the unlocking groove 33 is installed on the handle portion.

[0023] When the anti-locking pull plate 3 is pushed, the strip hole 31 will drive the boss 41 to rotate the anti-locking platform 4, and the anti-locking groove 32 or the unlocking groove 33 on the anti-locking pull plate 3 will cooperate with the positioning spring piece. Through such an arrangement of the anti-locking platform 4 and the anti-locking pull plate 3, there will be no jamming problem between the two, and the processing requirements are not high, the processing is simple, the operation is convenient, the cost is low, and the assembly requirements are not high.

[0024] A slide groove 22 for sliding the anti-locking pull plate 3 is provided on the handle portion of the inner handle 2, and an anti-locking button window 21 is opened on the bottom wall of the slide groove 22. An anti-locking button 34 is provided on one end of the anti-locking pull plate 3 facing the anti-locking button window 21, and the anti-locking button 34 passes through the anti-locking button window 21.

[0025] A positioning groove 5 for installing a positioning spring piece is provided at one side of the slide groove 22 , and the positioning groove 5 is communicated with the slide groove 22 , and the raised portion of the positioning spring piece is raised toward the slide groove 22 .

[0026] The raised portion of the positioning spring piece will cooperate with the anti-locking groove 32 or the unlocking groove 33 to prevent the anti-locking pull plate 3 from sliding.

[0027] An inner cover plate is installed above the slide slot 22 to cover the anti-locking pull plate 3. The anti-locking groove 32 and the unlocking groove 33 are located on the same side, which is convenient for placing the positioning spring piece.

[0028] A detachable outer cover plate (not shown in the figure) is installed on the inner handle 2.

[0029] In the above embodiment, when the anti-locking pull plate 3 is pushed, the strip hole 31 will drive the boss 41 to rotate the anti-locking platform 4, and the anti-locking groove 32 or the unlocking groove 33 on the anti-locking pull plate 3 will cooperate with the positioning spring piece. Through such an arrangement of the anti-locking platform 4 and the anti-locking pull plate 3, there will be no jamming problem between the two, and the processing requirements are not high, the processing is simple, the operation is convenient, the cost is low, and the assembly requirements are not high.

Claims

1. An anti-locking mechanism of a handle door lock, comprising an inner base, an inner handle rotatably disposed on the inner base, and an anti-locking assembly installed on the inner handle, characterized in that: The anti-locking assembly includes an anti-locking platform and an anti-locking pull plate. One end of the anti-locking platform is rotatably installed in the handle head of the inner handle, and the other end is provided with a boss at the edge. The anti-locking pull plate is slidably set in the handle portion of the inner handle. The anti-locking pull plate is provided with a strip hole connected to the boss at one end facing the anti-locking platform, and an anti-locking groove and an unlocking groove at the other end. A positioning spring piece that can cooperate with the anti-locking groove or the unlocking groove is installed on the handle portion.

2. The anti-locking mechanism of a handle door lock according to claim 1, characterized in that: A slide groove for sliding the anti-locking pull plate is provided on the handle portion of the inner handle, an anti-locking button window is opened on the bottom wall of the slide groove, an anti-locking button is provided at one end of the anti-locking pull plate facing the anti-locking button window, and the anti-locking button passes through the anti-locking button window.

3. The anti-locking mechanism of a handle door lock according to claim 2, characterized in that: A positioning groove for installing a positioning spring piece is provided on one side of the slide groove, and the positioning groove is communicated with the slide groove, and the raised portion of the positioning spring piece is raised toward the slide groove.

4. The anti-locking mechanism of a handle door lock according to claim 2 or 3, characterized in that: An inner cover plate is installed above the slide slot, and the inner cover plate covers the anti-locking pull plate.

5. The anti-locking mechanism of a handle door lock according to claim 1, characterized in that: The anti-locking groove and the unlocking groove are located on the same side.

6. The anti-locking mechanism of a handle door lock according to claim 1, characterized in that: A removable outer cover is installed on the inner handle.

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