Simple self-locking door lock structure

Abstract

The utility model discloses a simple self -locking door lock structure, including inner door handle structure, outer door handle structure and flaky transmission shaft, inner door handle structure includes inner door handle body, inner handle support, inner door rotating shaft, guide limiting structure and self -locking poking slider, the side portion of convex post is provided with the strip shape of avoiding groove that links to each other with the cavity, the lateral wall of inner door rotating shaft is provided with axial groove and one end with the spiral groove that links to each other with axial groove, the guide limiting structure is fixed on inner door handle body and is at the outside of strip shape and avoids the groove, and the convex axle is integrally formed on self -locking poking slider, and the self -locking poking slider is at the guide limiting structure, and the convex axle is in the axial recess or in the spiral groove and is unlocked. The utility model discloses the structure is reasonably arranged, and its overall structure is simple, is favorable for reducing processing and assembling cost, and adopts the self -locking poking slider translation operation to realize to thereby not easy damage, improves the effectiveness of self -locking and the stability reliability, and the structure is economic and practical.

Description

Technical Field

[0001] This utility model belongs to the field of door lock technology, specifically relating to a simple self-locking door lock structure. Background Technology

[0002] Door locks are important components of doors. They generally include an inner door seat, an outer door seat, a connecting square shaft, a lock cylinder on the outer door seat, and a rotary deadbolt on the inner door seat. When outside the door, the lock cylinder can be used to unlock the door, and when inside the door, the deadbolt can be used to lock the door. Although it can meet the needs of general use, its structure is relatively complex, and the rotary deadbolt is prone to loosening or falling off after repeated rotations, which affects the effectiveness of the deadbolt and to some extent affects its service life and stability. Utility Model Content

[0003] The purpose of this utility model is to provide a simple self-locking door lock structure that is reasonably designed and stable and reliable in use.

[0004] The technical solution to achieve the purpose of this utility model is a simple self-locking door lock structure, including an inner door handle structure, an outer door handle structure and a plate-shaped transmission shaft. The inner door handle structure includes an inner door handle body, an inner handle support, an inner door rotation shaft, a guide and limiting structure and a self-locking sliding block.

[0005] The inner door handle body is provided with a protruding post with a cavity, and the side of the protruding post is provided with a strip-shaped clearance groove that communicates with the cavity.

[0006] The inner handle support has a push groove hole on its side wall;

[0007] The protrusion is inserted into the inner handle support and its end is limited by a retaining spring.

[0008] The inner door rotating shaft has an axial groove and a spiral groove with one end connected to the axial groove on its side wall.

[0009] The inner door rotating shaft is rotatably disposed within the cavity, and one end of the plate-shaped transmission shaft passes through the protrusion and is connected to the inner door rotating shaft;

[0010] The guide limiting structure is fixed on the inner door handle body and is located on the outside of the strip-shaped clearance groove;

[0011] The self-locking sliding block has an integrally formed convex shaft;

[0012] The self-locking sliding block is positioned on the guide limiting structure, and the convex shaft is locked in the axial groove or unlocked in the spiral groove.

[0013] A further preferred embodiment is that the guide and limiting structure includes an upper limit guide seat, a lower limit guide seat, and a V-shaped spring sheet;

[0014] The upper limit guide seat and the lower limit guide seat are fixed to the side of the inner door handle body by screws. The upper limit guide seat is located at the upper edge of the strip-shaped clearance groove, and the lower limit guide seat is located at the lower edge of the strip-shaped clearance groove.

[0015] A T-shaped slot is provided in the middle of the outer wall of the upper limit guide seat, and the V-shaped spring piece is located in the T-shaped slot with its top extending out of the bottom edge of the upper limit guide seat;

[0016] The top edge of the self-locking sliding block is provided with at least two V-shaped limiting grooves;

[0017] When the self-locking sliding block is pushed, the V-shaped spring is engaged in one of the V-shaped limiting grooves, at which time the convex shaft is in the axial groove or the spiral groove.

[0018] A further preferred embodiment is that guide grooves are provided on the lower outer side of the upper limit guide seat and the upper outer side of the lower limit guide seat;

[0019] The upper and lower edges of the self-locking sliding block are respectively located in the guide groove, and a toggle handle is fixed to the middle of the outer side of the self-locking sliding block.

[0020] The toggle handle is located within the push slot.

[0021] A further preferred embodiment is that the outer door handle structure includes an outer door handle body, an outer handle support, a lock cylinder, an upper inverted Y-shaped locking element, and a lower Y-shaped locking element;

[0022] The protrusion of the outer door handle body passes through the outer handle support and is limited by the snap ring, and the lock cylinder is located inside the outer handle support;

[0023] The end of the plate-shaped drive shaft passes through the outer handle support and is connected to the lock cylinder;

[0024] The upper inverted Y-shaped locking member and the lower Y-shaped locking member are both provided with locking grooves on their inner walls. The upper inverted Y-shaped locking member and the lower Y-shaped locking member are superimposed and their recessed areas are on the same straight line, and their locking grooves are on different sides.

[0025] The plate-shaped drive shaft is located within the upper inverted Y-shaped locking member and the lower Y-shaped locking member. When the plate-shaped drive shaft is rotated to the lateral position, both ends of the plate-shaped drive shaft are respectively engaged in the locking grooves. At this time, the upper inverted Y-shaped locking member and the lower Y-shaped locking member clamp and lock the plate-shaped drive shaft. When the plate-shaped drive shaft is vertical, the upper inverted Y-shaped locking member and the lower Y-shaped locking member unfold, and the plate-shaped drive shaft is in the unlocked state.

[0026] A further preferred embodiment is that the width of the spiral groove is the same as the width of the axial groove, and the diameter of the protrusion is smaller than the width of the axial groove.

[0027] A further preferred embodiment is that the thickness of the self-locking sliding block matches the depth of the guide groove.

[0028] This utility model has positive effects: Its structure is reasonably designed. The inner door handle structure includes an inner door handle body, an inner handle support, an inner door rotating shaft, a guide and limiting structure, and a self-locking sliding block. An axial groove and a spiral groove connected at one end to the axial groove are provided on the side wall of the inner door rotating shaft. During use, the self-locking sliding block is moved horizontally, causing the protrusion of the self-locking sliding block to lock within the axial groove or unlock within the spiral groove. That is, when the protrusion is in the spiral groove, the plate-shaped transmission shaft can rotate, realizing the unlocking operation. Its overall structure is simple, which helps reduce processing and assembly costs. Furthermore, the use of a self-locking sliding block for horizontal movement reduces the risk of damage, improves the effectiveness of self-locking, and ensures stable and reliable operation. The structure is economical and practical. Attached Figure Description

[0029] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0030] Figure 1 This is a schematic diagram of the structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0032] Figure 3 This is a schematic diagram of the inner door handle structure in this utility model.

[0033] Figure 4 This is a schematic diagram of the specific structure of the outer door handle in this utility model;

[0034] Figure 5 This is a schematic diagram of the specific structure of the self-locking sliding block, the upper limit guide seat, and the lower limit guide seat of this utility model.

[0035] Reference numerals: 1. Plate-shaped drive shaft; 2. Inner door handle structure; 21. Inner door handle body; 22. Inner handle support; 23. Inner door rotation shaft; 24. Upper limit structure; 241. Upper limit guide seat; 242. Lower limit guide seat; 243. V-shaped spring; 244. T-shaped slot; 25. Self-locking sliding block; 36. Outer door handle structure; 37. Outer door handle body; 38. Outer handle support; 39. Lock cylinder; 30. Upper inverted Y-shaped locking element; 31. Lower Y-shaped locking element; 32. Locking groove; 33. Slot; 4. Actuating handle; 5. Cavity; 6. Protrusion; 7. Strip-shaped clearance groove; 8. Pushing slot; 9. Axial groove; 10. Spiral groove; 11. Protrusion shaft; 12. V-shaped limit groove; 13. Guide slide groove. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] Example

[0038] See Figures 1 to 5 As shown, a simple self-locking door lock structure includes an inner door handle structure 2, an outer door handle structure 3, and a plate-shaped drive shaft 1. The plate-shaped drive shaft is a conventional structure in the prior art, and is simply applied to connect the lock body in the middle of the prior art, so it is not described in detail.

[0039] In this embodiment, the inner door handle structure includes an inner door handle body 21, an inner handle support 22, an inner door rotation shaft 23, a guide and limiting structure 24, and a self-locking sliding block 25; the inner door handle body and the inner handle support are conventional structures in the prior art, and are simply applied.

[0040] In use, the inner door handle body is provided with a protruding post 6 with a cavity 5, and the side of the protruding post is provided with a strip-shaped clearance groove 7 that communicates with the cavity; the cavity is mainly used to install the inner door rotating shaft, and is used to pass through the inner handle support and be limited by the snap ring to ensure the stability and reliability of the assembly, while the strip-shaped clearance groove can realize the connection between the self-locking sliding block and the inner door rotating shaft.

[0041] Furthermore, the inner handle support has a push groove 8 on its side wall; during assembly, the protrusion is inserted into the inner handle support and its end is limited by a snap ring; the inner door rotating shaft has an axial groove 9 and a spiral groove 10 with one end connected to the axial groove on its side wall; in actual processing, the axial groove is on the side closer to the outer door handle structure; in this embodiment, the width of the spiral groove is the same as the width of the axial groove, and the diameter of the protrusion is smaller than the width of the axial groove.

[0042] Furthermore, the inner door rotating shaft is rotatably disposed within the cavity, and one end of the plate-shaped transmission shaft passes through the protrusion and is connected to the inner door rotating shaft; at the same time, its guide limiting structure is fixed on the inner door handle body and is located outside the strip-shaped clearance groove.

[0043] Furthermore, the self-locking sliding block has an integrally formed convex shaft 11. During assembly, the self-locking sliding block is positioned on the guide limiting structure, and the convex shaft is locked in the axial groove or unlocked in the helical groove. When the self-locking sliding block moves the slider, the convex shaft enters the axial groove or the helical groove. When it enters the axial groove, the inner door rotating shaft cannot rotate, meaning the plate-shaped transmission shaft cannot rotate. When the convex shaft is in the helical groove, the inner door rotating shaft can rotate, meaning the plate-shaped transmission shaft can rotate to complete the unlocking operation. The overall structure is simple, which helps reduce processing costs, and the self-locking is stable and reliable.

[0044] In this embodiment, the guide and limiting structure includes an upper limit guide seat 241, a lower limit guide seat 242, and a V-shaped spring piece 243. During assembly, the upper limit guide seat and the lower limit guide seat are fixed to the side of the inner door handle body by screws. The upper limit guide seat is located at the upper edge of the strip-shaped clearance groove, and the lower limit guide seat is located at the lower edge of the strip-shaped clearance groove. A T-shaped slot 244 is provided in the middle of the outer wall of the upper limit guide seat, and the V-shaped spring piece is located in the T-shaped slot with its top extending out of the bottom edge of the upper limit guide seat. The top edge of the self-locking sliding block is provided with at least two V-shaped limiting grooves 12.

[0045] In use, when the self-locking actuating slider is pushed, the V-shaped spring engages in one of the V-shaped limiting grooves, at which point the convex shaft is positioned within the axial groove or spiral groove. The width between the upper and lower limiting guide seats matches the width of the strip-shaped clearance groove, thus ensuring the effectiveness of the convex shaft's translation. The V-shaped spring, in conjunction with the V-shaped limiting groove, ensures the stability and reliability of the self-locking actuating slider during translation.

[0046] In this embodiment, guide grooves 13 are provided on the lower outer side of the upper limit guide seat and the upper outer side of the lower limit guide seat; the upper and lower edges of the self-locking actuating slider are respectively located in the guide grooves, and an actuating handle 4 is fixed to the middle of the outer side of the self-locking actuating slider; the actuating handle is located in the pushing slot. A guide track is formed between the guide groove and the inner wall of the inner handle support, which can guide and limit the translation of the self-locking actuating slider, ensuring the effectiveness and smoothness of the translation; the thickness of the self-locking actuating slider matches the depth of the guide groove.

[0047] In this embodiment, the outer door handle structure includes an outer door handle body 31, an outer handle support 32, a lock cylinder 33, an upper inverted Y-shaped locking member 34, and a lower Y-shaped locking member 35. During assembly, the protrusion of the outer door handle body passes through the outer handle support and is limited by a snap ring, and the lock cylinder is located inside the outer handle support. The end of the plate-shaped transmission shaft passes through the outer handle support and is connected to the lock cylinder. At the same time, the inner walls of the upper inverted Y-shaped locking member and the lower Y-shaped locking member are provided with locking grooves 36. The upper inverted Y-shaped locking member and the lower Y-shaped locking member overlap and their recessed areas are on the same straight line, and their locking grooves are on different sides.

[0048] In use, the plate-shaped drive shaft is positioned within the upper inverted Y-shaped locking member and the lower Y-shaped locking member. When the plate-shaped drive shaft rotates to a lateral position, both ends of the plate-shaped drive shaft are respectively engaged in the locking grooves. At this time, the upper inverted Y-shaped locking member and the lower Y-shaped locking member clamp and lock the plate-shaped drive shaft. When the plate-shaped drive shaft is vertical, the upper inverted Y-shaped locking member and the lower Y-shaped locking member unfold, and the plate-shaped drive shaft is in the unlocked state. The lock cylinder can drive the plate-shaped drive shaft to rotate, and it is locked through the locking grooves of the upper inverted Y-shaped locking member and the lower Y-shaped locking member, achieving reverse locking, improving safety, and preventing forced unlocking. When the lock cylinder unlocks, it can drive the plate-shaped drive shaft to rotate and disengage from the locking groove, realizing the unlocking operation.

[0049] This utility model has positive effects: Its structure is reasonably designed. The inner door handle structure includes an inner door handle body, an inner handle support, an inner door rotating shaft, a guide and limiting structure, and a self-locking sliding block. An axial groove and a spiral groove connected at one end to the axial groove are provided on the side wall of the inner door rotating shaft. During use, the self-locking sliding block is moved horizontally, causing the protrusion of the self-locking sliding block to lock within the axial groove or unlock within the spiral groove. That is, when the protrusion is in the spiral groove, the plate-shaped transmission shaft can rotate, realizing the unlocking operation. Its overall structure is simple, which helps reduce processing and assembly costs. Furthermore, the use of a self-locking sliding block for horizontal movement reduces the risk of damage, improves the effectiveness of self-locking, and ensures stable and reliable operation. The structure is economical and practical.

[0050] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural parts described in the instruction manual can also be processed without any doubt based on existing technical common sense. At the same time, the connection methods of each component adopt mature conventional methods in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so they will not be described in detail here.

[0051] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all embodiments here. However, these obvious variations or modifications derived from the essential spirit of this utility model still fall within the protection scope of this utility model.

Claims

1. A simple self-locking door lock structure, comprising an inner door handle structure, an outer door handle structure, and a plate-shaped transmission shaft, characterized in that: The inner door handle structure includes an inner door handle body, an inner handle support, an inner door rotation shaft, a guide and limiting structure, and a self-locking sliding block. The inner door handle body is provided with a protruding post with a cavity, and the side of the protruding post is provided with a strip-shaped clearance groove that communicates with the cavity. The inner handle support has a push groove hole on its side wall; The protrusion is inserted into the inner handle support and its end is limited by a retaining spring. The inner door rotating shaft has an axial groove and a spiral groove with one end connected to the axial groove on its side wall. The inner door rotating shaft is rotatably disposed within the cavity, and one end of the plate-shaped transmission shaft passes through the protrusion and is connected to the inner door rotating shaft; The guide limiting structure is fixed on the inner door handle body and is located on the outside of the strip-shaped clearance groove; The self-locking sliding block has an integrally formed convex shaft; The self-locking sliding block is positioned on the guide limiting structure, and the convex shaft is locked in the axial groove or unlocked in the spiral groove.

2. The simplified self-locking door lock structure according to claim 1, characterized in that: The guide and limiting structure includes an upper limit guide seat, a lower limit guide seat, and a V-shaped spring sheet; The upper limit guide seat and the lower limit guide seat are fixed to the side of the inner door handle body by screws. The upper limit guide seat is located at the upper edge of the strip-shaped clearance groove, and the lower limit guide seat is located at the lower edge of the strip-shaped clearance groove. A T-shaped slot is provided in the middle of the outer wall of the upper limit guide seat, and the V-shaped spring piece is located in the T-shaped slot with its top extending out of the bottom edge of the upper limit guide seat; The top edge of the self-locking sliding block is provided with at least two V-shaped limiting grooves; When the self-locking sliding block is pushed, the V-shaped spring is engaged in one of the V-shaped limiting grooves, at which time the convex shaft is in the axial groove or the spiral groove.

3. The simplified self-locking door lock structure according to claim 2, characterized in that: The lower outer side of the upper limit guide seat and the upper outer side of the lower limit guide seat are both provided with guide grooves; The upper and lower edges of the self-locking sliding block are respectively located in the guide groove, and a toggle handle is fixed to the middle of the outer side of the self-locking sliding block. The toggle handle is located within the push slot.

4. The simplified self-locking door lock structure according to claim 1, characterized in that: The outer door handle structure includes an outer door handle body, an outer handle support, a lock cylinder, an upper inverted Y-shaped locking element, and a lower Y-shaped locking element; The protrusion of the outer door handle body passes through the outer handle support and is limited by the snap ring, and the lock cylinder is located inside the outer handle support; The end of the plate-shaped drive shaft passes through the outer handle support and is connected to the lock cylinder; The upper inverted Y-shaped locking member and the lower Y-shaped locking member are both provided with locking grooves on their inner walls. The upper inverted Y-shaped locking member and the lower Y-shaped locking member are superimposed and their recessed areas are on the same straight line, and their locking grooves are on different sides. The plate-shaped drive shaft is located within the upper inverted Y-shaped locking member and the lower Y-shaped locking member. When the plate-shaped drive shaft is rotated to the lateral position, both ends of the plate-shaped drive shaft are respectively engaged in the locking grooves. At this time, the upper inverted Y-shaped locking member and the lower Y-shaped locking member clamp and lock the plate-shaped drive shaft. When the plate-shaped drive shaft is vertical, the upper inverted Y-shaped locking member and the lower Y-shaped locking member unfold, and the plate-shaped drive shaft is in the unlocked state.

5. The simplified self-locking door lock structure according to claim 1, characterized in that: The width of the spiral groove is the same as the width of the axial groove, and the diameter of the protrusion is smaller than the width of the axial groove.

6. The simplified self-locking door lock structure according to claim 3, characterized in that: The thickness of the self-locking sliding block matches the depth of the guide groove.

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