Lock cylinder with adjustable telescopic length

Abstract

The utility model discloses a lock cylinder with an adjustable telescopic length, which relates to the field of locks and comprises a lock shell, a lock liner, a dial wheel mechanism and a marble mechanism. The lock shell comprises an outer shell, an inner shell and an inner shell, wherein an open mounting groove is formed in the end of the outer shell; the inner shell is mounted in the mounting groove in a sliding manner; an adjusting mechanism used for adjusting the telescopic length of the inner shell is arranged between the outer shell and the inner shell. The device has the advantages of being simple in structure and convenient to adjust.

Description

Technical Field

[0001] The utility model relates to the field of locks, in particular to a lock core with adjustable telescopic length. Background Art

[0002] The door lock in the prior art is installed on the door panel. If the thickness of the door panel is not compatible with the length of the lock core, a depression will be formed on the inside or outside of the door panel, which greatly affects the appearance. Therefore, there is an urgent need for a lock core that can adapt to door panels of various thicknesses. Utility Model Content

[0003] In order to overcome the shortcomings of the background technology, the utility model provides a lock core with adjustable telescopic length which has a simple structure and is easy to adjust.

[0004] The technical solution adopted by the utility model is: a lock core with adjustable telescopic length, including a lock shell, a lock core, a dial wheel mechanism and a marble mechanism; the lock shell includes:

[0005] The outer shell has an open mounting groove at its end;

[0006] an inner housing, which is slidably mounted in the mounting groove;

[0007] An adjusting mechanism for adjusting the telescopic length of the inner shell is provided between the outer shell and the inner shell.

[0008] The regulating mechanism comprises:

[0009] a through hole, which is provided on the upper surface of the outer shell;

[0010] A fastener is threadedly matched with the through hole and has a bottom portion that passes through the through hole and contacts the upper surface of the inner shell.

[0011] The number of the through holes is at least one, and the through holes are arranged linearly.

[0012] A baffle is provided at one end of the inner shell exposed outside the outer shell, and a stopper is provided at one end of the inner shell hidden in the mounting groove. After the inner shell is fully retracted into the outer shell, the baffle contacts and cooperates with the end face of the outer shell. When the inner shell extends out of the outer shell, the bottom of the fastener is located on the moving path of the stopper.

[0013] The middle position of the outer shell is hollowed out and is used to install the dial mechanism. The installation grooves are arranged at both ends of the outer shell and are provided with inner shells. One of the inner shells is installed with the lock core and the marble mechanism and the other inner shell is installed with a handle connected to the dial mechanism.

[0014] A linkage shaft that slides through the dial mechanism is provided in the outer shell, an elastic member that contacts one end of the linkage shaft and the handle is provided between the two, and the other end of the linkage shaft is used for linkage connection with a key inserted into the lock core.

[0015] The elastic member is a spring.

[0016] The circumferential surface of one end of the linkage shaft is provided with a protrusion linked to the handle, the front end of the handle is provided with a slot adapted to the protrusion, and the end surface position of the other end of the linkage shaft is provided with a groove for inserting a key.

[0017] The beneficial effects of the present invention are as follows: the present technical solution divides the lock shell into an outer shell and an inner shell, and the inner shell can realize two actions of extending and retracting in the mounting groove of the outer shell, and the extension length of the inner shell can be adjusted by an adjustment mechanism, which can perfectly adapt to door panels of various thicknesses, and has the advantages of simple structure and convenient adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a lock core with adjustable telescopic length according to an embodiment of the present invention.

[0019] Figure 2 A cross-sectional view of a lock cylinder with adjustable telescopic length.

[0020] Figure 3 It is a structural diagram of the linkage shaft.

[0021] Figure 4 This is a schematic diagram of the disassembled structure of the dial mechanism. DETAILED DESCRIPTION

[0022] The following is a further description of the embodiments of the present invention in conjunction with the accompanying drawings:

[0023] As shown in the figure, a lock core with adjustable telescopic length includes a lock housing, a lock core 8, a dial mechanism 9 and a ball mechanism 10; the lock housing includes:

[0024] The outer shell 1 has an open mounting groove 7 at its end;

[0025] The inner housing 2 is slidably mounted in the mounting groove 7;

[0026] An adjustment mechanism for adjusting the telescopic length of the inner shell 2 is provided between the outer shell 1 and the inner shell 2; this technical solution divides the lock shell into an outer shell and an inner shell, and the inner shell can realize two actions of extending and retracting in the mounting groove of the outer shell, and the extending length of the inner shell can be adjusted by the adjustment mechanism, which can perfectly adapt to door panels of various thicknesses, and has the advantages of simple structure and convenient adjustment.

[0027] The regulating mechanism comprises:

[0028] a through hole 3, which is provided on the upper surface of the outer shell 1;

[0029] The fastener 4 is threadedly engaged with the through hole 3 and its bottom penetrates the through hole 3 and contacts the upper surface of the inner shell 2. The fastener is a bolt. After manually adjusting the protruding length of the inner shell, the bolt is lowered in the through hole by screwing it until the bottom contacts the upper surface of the inner shell. Tightening the bolt can lock the position of the inner shell.

[0030] There is at least one through hole 3 , and the through holes 3 are arranged linearly. In this embodiment, there are three through holes, and the installation position of the bolts can be selected according to the actual installation situation.

[0031] The end of the inner shell 2 exposed outside the outer shell 1 is provided with a baffle 5, and the end of the inner shell 2 hidden in the mounting groove 7 is provided with a stopper 6. After the inner shell 2 is fully retracted into the outer shell 1, the baffle 5 contacts and cooperates with the end face of the outer shell 1. When the inner shell 2 extends out of the outer shell 1, the bottom of the fastener 4 is located on the moving path of the stopper 6. When the baffle contacts the end face of the outer shell, it means that the inner shell is retracted into place. At this time, the length of the lock core is the shortest. After loosening the fastener, the inner shell is manually pulled out, adjusted to the appropriate length, and then the bolts are tightened to lock the position of the inner shell.

[0032] When the inner casing is pulled out to its maximum length, the stopper contacts the bottom of the bolt, thereby limiting the inner casing from extending further outward.

[0033] In addition, when the fasteners are installed in through holes at different positions, the inner shell has different maximum extension lengths, which has the advantages of easy adjustment and good practicality.

[0034] The middle position of the outer shell 1 is hollowed out and used to install the dial mechanism 9. The installation groove 7 is set at both ends of the outer shell 1 and is provided with an inner shell 2. One of the inner shells 2 is installed with a lock core 8 and a marble mechanism 10, and the other inner shell 2 is installed with a handle 11 connected to the dial mechanism 9. The rotation of the handle can drive the dial mechanism to rotate synchronously. In this embodiment, Figure 1 As shown, the handle is located on the inner side of the door panel, the lock core with the key is located on the outer side of the door panel, and the lock core can realize the telescopic action of the inner shell on both the inner and outer sides of the door panel.

[0035] The dial mechanism in this embodiment is prior art, such as a suspended bead lock core disclosed in publication number CN118668994A on September 20, 2024. The dial mechanism thereof has the same principle as that of this embodiment, and will not be elaborated here.

[0036] A linkage shaft 12 is provided in the outer shell 1 and slides through the dial mechanism 9. An elastic member 13 is provided between one end of the linkage shaft 12 and the handle 11 to interfere with the two. The other end of the linkage shaft 12 is used for linkage connection with the key inserted into the lock core 8. The elastic member is a spring, which provides an axial elastic pre-tightening force for the linkage shaft, so that the end of the linkage shaft always contacts the end of the lock core, thereby facilitating linkage connection with the key when the key is inserted.

[0037] The circumferential surface of one end of the linkage shaft 12 is provided with a protrusion 14 linked to the handle 11, the front end of the handle is provided with a slot 16 adapted to the protrusion, and the end surface position of the other end of the linkage shaft 12 is provided with a groove 15 for inserting a key. Figure 4 As shown, the handle can be driven by the linkage shaft to rotate; the handle then synchronously drives the thumbwheel mechanism to rotate. After the key is inserted into the lock core, the end of the key will be inserted into the groove, thereby driving the thumbwheel mechanism and the handle to rotate together through the linkage shaft.

[0038] In the description of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified or limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0040] Technical personnel please note: Although the utility model has been described according to the above specific implementation methods, the utility model concept of the utility model is not limited to this utility model. Any modification using the utility model concept will be included in the scope of protection of this patent.

Claims

1. A lock core with adjustable telescopic length, comprising a lock housing, a lock core (8), a dial mechanism (9) and a ball mechanism (10); characterized in that: The lock housing comprises: An outer shell (1) having an open mounting groove (7) at its end; An inner housing (2) is slidably mounted in the mounting groove (7); An adjustment mechanism for adjusting the telescopic length of the inner shell (2) is provided between the outer shell (1) and the inner shell (2); The regulating mechanism comprises: A through hole (3) provided on the upper surface of the outer shell (1); A fastener (4), which is threadably engaged with the through hole (3) and has a bottom portion that passes through the through hole (3) and contacts the upper surface of the inner shell (2); The number of the through holes (3) is at least one, and the through holes (3) are arranged linearly.

2. The lock cylinder with adjustable telescopic length according to claim 1, characterized in that: The end of the inner shell (2) exposed outside the outer shell (1) is provided with a baffle (5), and the end of the inner shell (2) hidden in the mounting groove (7) is provided with a stopper (6). After the inner shell (2) is completely retracted into the outer shell (1), the baffle (5) contacts and cooperates with the end surface of the outer shell (1). When the inner shell (2) extends out of the outer shell (1), the bottom of the fastener (4) is located on the moving path of the stopper (6).

3. The lock cylinder with adjustable telescopic length according to claim 1, characterized in that: The middle position of the outer shell (1) is hollowed out and is used to install the dial mechanism (9), the installation groove (7) is provided at both ends of the outer shell (1) and both are provided with inner shells (2), one of the inner shells (2) is provided with the lock core (8) and the marble mechanism (10), and the other inner shell (2) is provided with a handle (11) connected to the dial mechanism (9).

4. The lock cylinder with adjustable telescopic length according to claim 3, characterized in that: A linkage shaft (12) is provided in the outer shell (1) and slides through the dial wheel mechanism (9). An elastic member (13) is provided between one end of the linkage shaft (12) and the handle (11) to abut against the two. The other end of the linkage shaft (12) is used for linkage connection with a key inserted into the lock core (8).

5. The lock cylinder with adjustable telescopic length according to claim 4, characterized in that: The elastic member (13) is a spring.

6. The lock cylinder with adjustable telescopic length according to claim 4, characterized in that: A convex block (14) linked to the handle (11) is provided on the circumferential surface of one end of the linkage shaft (12), a slot (16) adapted to the convex block is provided at the front end of the handle, and a groove (15) for inserting a key is provided at the end surface of the other end of the linkage shaft (12).

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