A drawer lock cylinder convenient to disassemble

Abstract

The utility model discloses a drawer lock core convenient to disassemble, include: lock bottom and lock head, the lock head installs one side at lock bottom, and built -in has lock gall, lock gall with lock bolt connection in lock bottom, the lock bottom passes through axle hole and installs lock gall, the axle hole built -in limit lock gall's inner ring part, lock gall is equipped with the limiting piece of adaptive inner ring part, when unlocking piece extends through lock hole and triggers limiting piece, makes limiting piece shrink, and removes limiting piece to the restriction of inner ring part, makes lock gall and separates from lock head. The utility model provides a drawer lock core convenient to disassemble, utilizes the stress of lock handle cooperation convex and presses, and the contraction blade is in lock gall, makes the limiting end of leaf blade type limiting piece not to be blocked by inner ring part, drives limiting piece to be downward in lock gall, and the upper limiting end displacement removes in lock gall, and the end of lock gall can pass through inner ring part.

Description

Technical Field

[0001] This utility model relates to the field of safety accessories, and in particular to a drawer lock cylinder that is easy to disassemble. Background Technology

[0002] A drawer lock is a device used to lock a drawer. It is a type of lock that is placed on an openable and closable object to close a certain space or a certain appliance. It is a fastener that must be opened with a key or combination.

[0003] Existing drawer locks are all designed as a whole. After assembly, if the components inside the lock cylinder are damaged, they cannot be disassembled for replacement. When the cabinet is damaged, the whole thing needs to be replaced, which will damage the door panel. Therefore, a drawer lock cylinder that is easy to disassemble is proposed. Utility Model Content

[0004] This invention provides a drawer lock cylinder that is easy to disassemble, thereby solving the aforementioned problems.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A drawer lock cylinder that is easy to disassemble includes:

[0007] The lock includes a base and a cylinder. The cylinder is mounted on one side of the base and contains a cylinder. The cylinder is connected to the bolt inside the base. The base has a shaft hole through which the cylinder is installed. The shaft hole contains an inner ring that restricts the cylinder. The cylinder has a limiting member that adapts to the inner ring. When the unlocking member extends through the lock hole and triggers the limiting member, the limiting member retracts and releases the restriction on the inner ring, allowing the cylinder to be pulled out of the cylinder.

[0008] Furthermore, the lock cylinder includes an unlocking section and a disengagement section located at the end of the unlocking section. The unlocking section is provided with a blade, a steel ball, and an elastic element, and the limiting element is located within the disengagement section.

[0009] Furthermore, the limiting member has the same structure as the blade. The blade includes a rectangular frame hole at the center, a protrusion inside the rectangular frame hole, a limiting end, and a force-bearing end. The limiting end is located at the upper or lower part of the blade, and the force-bearing end is located on one side of the blade.

[0010] Furthermore, the keyhole is designed to be perpendicular to the positive face of the protrusion.

[0011] Furthermore, the inner ring extends circumferentially toward the axis along the inner wall surface of the shaft hole, and the inner ring is also provided with a release groove.

[0012] Furthermore, the end of the lock cylinder is also provided with an auxiliary hole.

[0013] Furthermore, the limiting member is provided with a limiting elastic element.

[0014] The beneficial effects of this utility model are:

[0015] This utility model provides a drawer lock cylinder that is easy to disassemble. By utilizing the lock handle in conjunction with the force applied to the protrusion, the blade retracts within the lock cylinder, preventing the limiting end of the blade-shaped stopper from being obstructed by the inner ring. During installation, the stopper is driven downward within the lock cylinder, with the upper limiting end displacing into the cylinder, allowing the end of the lock cylinder to pass through the inner ring. When the disassembly key is removed, the limiting end is driven by the limiting spring, causing the limiting blade to spring back, and the end face of the upper limiting end presses against the side of the inner ring. Similarly, during disassembly, when the lock handle penetrates into the lock hole and presses against the protrusion of the limiting component, the limiting component retracts, and the lower limiting end is pushed out through the release groove, allowing the lock cylinder to be pulled out through the lock bottom for replacement of internal components. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is one of the overall structural schematic diagrams of this utility model.

[0018] Figure 2 This is the second schematic diagram of the overall structure of this utility model.

[0019] Figure 3 This is one of the schematic diagrams of the lock cylinder structure of this utility model.

[0020] Figure 4 This is the second schematic diagram of the lock cylinder structure of this utility model.

[0021] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0022] 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.

[0023] according to Figures 1-4 As shown:

[0024] A drawer lock cylinder that is easy to disassemble includes: a lock base 1 and a lock head 2. The lock head 2 has a built-in lock cylinder 3 and is installed inside the lock base 1. The lock cylinder 3 is connected to the lock tongue 4 inside the lock base 1. After inserting the key 5 into the lock cylinder 3 with the key hole 6, the lock cylinder 3 is turned. The linkage part 31 inside the lock cylinder 3 pulls the lock tongue 4 to rise or fall inside the lock base 1, thereby unlocking or locking the lock cylinder.

[0025] The lock cylinder 3 contains several axially arranged blades 7, and the key 5 is adapted to the protrusions 71 on the blades 7. In this structure, the vertically designed protrusions 71, which are either upward or downward, and the horizontally set lock hole 6, make the inserted key 5 and the protrusions 71 form a T-shaped structural surface. When the key 5 has a groove 51 that adapts to the protrusions 71 at the front or rear end, instead of turning the knob to unlock or lock through the side (ridge line surface) of the key 5, the contact surface between the key 5 and the blades 7 is increased, reducing the risk of the key 5 breaking due to excessive force during the turning process.

[0026] The blade 7 is shaped like a lantern and includes a force-receiving end 72 on the side and limiting ends 73 and 74 on the upper and lower parts. The blade 7 has a rectangular frame hole 75 inside, and the protrusion 71 is located therein. The rectangular frame hole 75 is adapted to the width of the key 5 handle. The difference is that the protrusion 71 on each set of blades 7 has different heights. This is a conventional design and will not be described further.

[0027] In the figure, blade 7 is equipped with an elastic element, namely a blade spring, which presses against the force-bearing end 72. This is a conventional design and will not be described further.

[0028] As shown in the diagram, the lock cylinder 3 contains a steel ball 9 and its steel ball spring, a conventional design that will not be elaborated further.

[0029] In this design, the lock cylinder 3 is equipped with a limiting member 8. Because the lock cylinder 3 is inserted into the shaft hole 100 of the lock base 1, the limiting member 8 is limited by the inner ring portion 11 of the lock base 1, thereby allowing the lock cylinder 3 to be moved, disassembled, and installed within the shaft hole 100 of the lock base 1.

[0030] In the figure, the limiting member 8 is in the shape of a blade 7. It is added to one side of the steel ball 9 and works with the limiting elastic member 81 to form a limiting spring. The inner ring 11 is a circular ring that fits against the inner wall of the shaft hole 100. The inner ring 11 also has a release groove 12.

[0031] The upper limiting end 73 of the blade 7 contacts and presses against the wall of the inner ring 11, forming a mutual restriction, while the lower limiting end 74, through the release groove 12, allows the lock cylinder 3 to be oriented into the lock head 2.

[0032] It should be noted that, for ease of installation, both the lock bottom 1 and the lock cylinder 3 are marked with a positive orientation of 200.

[0033] The principle is that the locking handle, in conjunction with the force applied to the protrusion 71, compresses the blade 7 within the lock cylinder 3, preventing the limiting end of the blade 7-shaped limiting member 8 from being obstructed by the inner ring 11.

[0034] When the lock is engaged, the limiting member 8 is driven downward inside the lock cylinder 3, and the upper limiting end 73 is displaced into the lock cylinder 3. The end of the lock cylinder 3 can pass through the inner ring 11. When the disassembly key A1 is pulled out, the limiting end 73 is driven by the limiting spring, the limiting blade 7 rebounds, and the end face of the upper limiting end 73 presses against the side of the inner ring 11.

[0035] Similarly, when the lock handle is released, it penetrates into the lock hole 6 and presses against the protrusion 71 of the limiting member 8. The limiting member 8 retracts, and the lower limiting end 74 is pushed out through the release groove 12, so that the lock cylinder 3 can be pulled out through the lock bottom 1 and the internal components can be replaced.

[0036] It should be noted that there are two sets of keys mentioned here: a disassembly key and a regular opening key 5. The regular opening key 5 is only adapted to the blade 7 in front of the steel ball 9. Therefore, it can be understood that the disassembly key A1 is longer than the regular opening key 5. A pin-like head can also be added to contact the limiting part 8 to adapt to the blade 7 behind the steel ball 9.

[0037] To increase the adaptability of the lock cylinder 3, an auxiliary hole 300 is provided at the end of the lock cylinder 3. This auxiliary hole 300 prevents the excessively long disassembly key A1 from pressing against the deepest (bottom) part of the lock cylinder 3.

[0038] It should be noted that in this design, a contact limiting component 8 similar to the key 5 structure is preferred. The aforementioned disassembly key A1 and part of the lock handle can be understood as the unlocking component or part of the unlocking component.

[0039] As shown in the figure, the rear end face of the lock base 1 has a mounting cavity, which is connected to the latch opening 103 on the outer side of the lock base 1. The mounting cavity is provided with a guide groove 101 adapted to the latch 4 and a mounting base adapted to install the lock head 2. The latch opening 103 is perpendicular to the guide groove 101. Since the lock cylinder 3 and the latch 4 are linked, in this design, the guide groove 101 is located at the center of the mounting cavity. The mounting base includes four sets of mounting ends 102, which are respectively located on both sides of the guide groove 101. The lock head 2 is connected to the mounting base by screws through the mounting hole 201, and the lock cylinder 3 is connected to and triggers the latch 4.

[0040] In this embodiment, the bolt 4 has a trigger part 401 adapted to the cylinder 3. The trigger part 401 is groove-shaped and umbrella-shaped. Specifically, the groove includes a fixed end and an arc-shaped end. The fixed end is located on one side of the arc-shaped end, that is, on one side of the inner arc surface. The arc-shaped end is a symmetrical arc, and the fixed end is located at the horizontal center point of the arc-shaped end. Correspondingly, the linkage part 31 of the cylinder 3 is adapted to two parallel columns in the umbrella-shaped groove. It is cylindrical in three dimensions. One column A is at the fixed end, serving as a fixed axis point. The other column B moves towards the top or bottom of the arc-shaped end after the cylinder 3 is subjected to force, forcing the bolt 4 to be squeezed by the column B, thereby realizing the opening and closing of the lock cylinder.

[0041] In a further improvement to the above design, the blade 7 is also provided with an electroplated layer. The color of the electroplated layer is adapted to the blade 7 mounting groove of the lock cylinder 3. For this purpose, the groove 51 of the key 5 and the protrusion 71 of the blade 7 are different to perform corresponding blade 7 insertion, which facilitates production and installation.

[0042] The lock cylinder 2 has built-in limiting ribs and limiting steering for the lock cylinder 3, which is a conventional design and will not be described further here.

[0043] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A drawer lock cylinder that is easy to disassemble, characterized in that, include: The lock includes a base and a cylinder. The cylinder is mounted on one side of the base and contains a cylinder. The cylinder is connected to the bolt inside the base. The base has a shaft hole through which the cylinder is installed. The shaft hole contains an inner ring that restricts the cylinder. The cylinder has a limiting member that adapts to the inner ring. When the unlocking member extends through the lock hole and triggers the limiting member, the limiting member retracts and releases the restriction on the inner ring, allowing the cylinder to be pulled out of the cylinder.

2. The drawer lock cylinder that is easy to disassemble according to claim 1, characterized in that: The lock cylinder includes an unlocking section and a disengagement section located at the end of the unlocking section. The unlocking section is provided with a blade, a steel ball, and an elastic element, and the limiting element is located inside the disengagement section.

3. A drawer lock cylinder that is easy to disassemble according to claim 2, characterized in that: The limiting member has the same structure as the blade. The blade includes a rectangular frame hole at the center, a protrusion inside the rectangular frame hole, a limiting end, and a force-bearing end. The limiting end is located at the upper or lower part of the blade, and the force-bearing end is located on one side of the blade.

4. A drawer lock cylinder that is easy to disassemble according to claim 3, characterized in that: The keyhole is designed to be perpendicular to the positive face of the protrusion.

5. A drawer lock cylinder that is easy to disassemble according to claim 1, characterized in that: The inner ring extends circumferentially toward the axis along the inner wall surface of the shaft hole, and the inner ring is also provided with a relief groove.

6. A drawer lock cylinder that is easy to disassemble according to claim 1, characterized in that: The end of the lock cylinder is also provided with an auxiliary hole.

7. A drawer lock cylinder that is easy to disassemble according to claim 1, characterized in that: The limiting component is equipped with a limiting elastic element.

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