Lock core connection structure and installation method of lock core and lock core connection structure

Abstract

The present invention discloses a lock core connection structure and a method for installing the lock core and the lock core connection structure. The lock core connection structure includes: a door panel, the door panel is provided with a connecting installation channel and an installation hole, the installation channel has an installation opening, and the installation opening is opened on the outer wall of the door panel; a lock core, including an inner shell and a lock tongue, the lock tongue is provided in the inner shell, the inner shell is inserted into the installation channel, the installation channel forms a support for the inner shell, the lock tongue can extend out of the installation opening, and the inner shell has a limiting shell portion extending into the installation hole; a limiting member is provided in the installation hole and connected to the limiting shell portion, the limiting member has a limiting surface opposite to the installation opening, and the limiting surface abuts against the hole wall of the installation hole to limit the inner shell; in this way, the outer wall of the door panel does not need to be provided with a fixing hole for screws to pass through to fix the inner shell, nor does it need to be provided with a cover plate on the outer wall of the door panel to cover the fixing hole and the screws, thereby making the outer wall of the door panel more complete and beautiful as a whole.

Description

Technical Field

[0001] The present invention relates to the technical field of hardware accessories, and in particular to a lock core connection structure and a lock core and an installation method of the lock core connection structure. Background Art

[0002] Solid door panels are usually provided with mounting channels and mounting holes for installing locks, and the mounting channels and mounting holes are connected. Specifically, the lock includes a lock core and a handle assembly. The lock core is inserted into the mounting channel, and the handle assembly is arranged in the mounting hole and is transmission-connected to the lock core to drive the lock core. More specifically, in current technology, screw holes need to be drilled on the outer wall of the door panel, and the screws are screwed into the screw holes and the housing of the lock core to avoid the lock core from being misplaced or loose in the mounting channel. In addition, in order to cover the screws and screws, a cover plate is usually required on the outer wall of the door panel, which reduces the integrity and aesthetics of the outer wall of the door panel. Summary of the Invention

[0003] In order to overcome at least one defect of the above-mentioned prior art, the present invention provides a lock core connection structure and an installation method of the lock core and the lock core connection structure, aiming to solve the problem that the outer wall of the door panel is not complete and beautiful due to the installation of the lock core.

[0004] The technical solution adopted by the present invention to solve the problem is:

[0005] A lock core connection structure includes: a door panel, which is provided with a communicating mounting channel and a mounting hole, the mounting channel having a mounting opening, and the mounting opening is opened on the outer side wall of the door panel; a lock core, including an inner shell and a lock tongue, the lock tongue is provided in the inner shell, the inner shell is inserted into the mounting channel, the mounting channel forms a support for the inner shell, the lock tongue can extend out of the mounting opening, and the inner shell has a limiting shell portion extending to the mounting hole; a limiting member, which is provided in the mounting hole and connected to the limiting shell portion, the limiting member having a limiting surface opposite to the mounting opening, and the limiting surface is abutted against the hole wall of the mounting hole to limit the inner shell.

[0006] According to some embodiments of the present invention, the limiting member is sleeved on the limiting shell.

[0007] According to some embodiments of the present invention, the limiting member can slide along the limiting shell portion, and when the limiting member slides to the limiting position, the limiting surface abuts against the hole wall of the installation hole.

[0008] According to some embodiments of the present invention, the first end of the inner shell is used for the lock tongue to extend, and the first end of the inner shell is provided with a positioning flange, and the positioning flange has a positioning surface opposite to the limiting surface, and the positioning surface is abutted against the outer wall of the door panel to position and support the inner shell.

[0009] According to some embodiments of the present invention, the mounting opening is stepped, the positioning flange is embedded in the mounting opening, and the positioning surface abuts against an outer side wall of the mounting opening.

[0010] According to some embodiments of the present invention, the lock core connection structure further includes a fastening structure, which is provided between the limiting member and the limiting shell portion to fix the relative positions of the limiting member and the limiting shell portion.

[0011] According to some embodiments of the present invention, the fastening structure includes a fastener and a protrusion, the fastener is inserted into the limiting member along a first direction, the protrusion is arranged on the outer wall of the limiting shell, the protrusion has abutting surface, and the abutting surface is inclined to the first direction. One end of the fastener abuts against the abutting surface to tighten the inner shell along a second direction; the second direction is the insertion direction of the inner shell, and the first direction is perpendicular or inclined to the second direction.

[0012] According to some embodiments of the present invention, the limiting member is elastic.

[0013] Secondly, the present invention also provides a lock core, comprising an inner shell, a lock tongue, a limit piece and a fastening structure; the lock tongue is arranged in the inner shell, and the lock tongue can extend from the first end of the inner shell, and the first end of the inner shell is provided with a positioning flange, and the inner shell also has a limit shell portion, and the limit shell portion is located behind the first end of the inner shell in the extending direction of the lock tongue; the limit piece is connected to the limit shell portion, the positioning flange has a positioning surface, and the limit piece has a limit surface, and the positioning surface is opposite to the limit surface; the fastening structure is arranged between the limit piece and the limit shell portion to fix the relative position of the limit piece and the limit shell portion.

[0014] According to some embodiments of the present invention, the limiting member can slide along the limiting shell portion. When the limiting member slides to the limiting position, the limiting surface is used to abut against the hole wall of the installation hole of the door panel, and the fastening structure fixes the relative position of the limiting member and the limiting shell portion.

[0015] According to some embodiments of the present invention, the limiting member is sleeved on the limiting shell.

[0016] According to some embodiments of the present invention, the fastening structure includes a fastener and a protrusion, the fastener is inserted into the limiting member along a first direction, the protrusion is arranged on the outer wall of the limiting shell, the protrusion has abutting surface, and the abutting surface is inclined to the first direction. One end of the fastener abuts against the abutting surface to tighten the inner shell along a second direction; the second direction is the insertion direction of the inner shell, and the first direction is perpendicular or inclined to the second direction.

[0017] Again, the present invention also provides an installation method for a lock core connection structure, wherein the lock core connection structure includes a door panel, a lock core and a limit piece; the door panel is provided with a connected installation channel and an installation hole, the installation channel has a installation opening, and the installation opening is opened on the outer wall of the door panel; the lock core includes an inner shell and a lock tongue, and the lock tongue is provided in the inner shell; the installation method includes the following steps: setting the limit piece in the installation hole, inserting the inner shell into the installation channel from the installation opening, so that the installation channel forms a support for the inner shell, and the limit piece is connected to the limit shell part of the inner shell; sliding the limit piece relative to the limit shell part to a limit position to limit the inner shell, the limit piece has a limit surface opposite to the installation opening, and when the limit piece is in the limit position, the limit surface is against the hole wall of the installation hole.

[0018] According to some embodiments of the present invention, the lock core connection structure also includes a fastening structure, which includes a fastener and a protrusion, wherein the protrusion is arranged on the outer wall of the limiting shell portion, and the protrusion has an abutment surface; the fastener is inserted into the limiting member along a first direction, and the abutment surface is inclined to the first direction so that one end of the fastener abuts against the abutment surface to tighten the inner shell along a second direction; the second direction is the insertion direction of the inner shell, and the first direction is perpendicular or inclined to the second direction.

[0019] According to some embodiments of the present invention, the first end of the inner shell is used for the lock tongue to extend, and the first end of the inner shell is provided with a positioning flange, and the positioning flange has a positioning surface opposite to the limiting surface; the positioning surface is abutted against the outer side wall of the door panel to position the inner shell.

[0020] According to some embodiments of the present invention, the mounting opening is stepped; the positioning flange is embedded in the mounting opening so that the positioning surface abuts against an outer side wall of the mounting opening.

[0021] In summary, the lock core connection structure and the installation method of the lock core and the lock core connection structure provided by the present invention have at least the following technical effects:

[0022] The inner shell is inserted into the installation channel, and a limit piece is set in the installation hole to limit the inner shell, thereby avoiding the problem of misalignment or shaking of the inner shell in the installation channel. More importantly, since the inner shell is supported by the installation channel and limited by the limit piece in the installation hole, the outer wall of the door panel does not need to be provided with fixing holes for screws to pass through to fix the inner shell, nor is there a need to provide a cover plate on the outer wall of the door panel to cover the fixing holes and screws, thereby making the outer wall of the door panel more complete and beautiful as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural schematic diagram of the lock core connection structure (handle seat not shown) of the first embodiment of the present invention at a first viewing angle;

[0024] Figure 2 This is a schematic structural diagram of a door panel according to a first embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the exploded structure of the lock core according to the first embodiment of the present invention;

[0026] Figure 4 This is a structural schematic diagram of the lock core connection structure (handle seat not shown) of the first embodiment of the present invention at a second viewing angle;

[0027] Figure 5 This is a schematic cross-sectional view of the lock core connection structure (handle seat not shown) according to the first embodiment of the present invention;

[0028] Figure 6 for Figure 5 A partial enlarged view of part A in the middle;

[0029] Figure 7 This is a schematic diagram of the assembly structure of the lock core connection structure and the handle according to the first embodiment of the present invention.

[0030] The meanings of the reference numerals are as follows:

[0031] 1-door panel, 11-installation channel, 111-installation opening, 12-installation hole, 121-limiting hole wall, 2-lock cylinder, 21-inner shell, 211-limiting shell portion, 212-first end, 22-lock tongue, 23-positioning flange, 231-positioning surface, 3-limiting member, 31-limiting surface, 4-fastening structure, 41-fastener, 42-bump, 421-abutting surface, 5-handle seat, 6-handle. DETAILED DESCRIPTION

[0032] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0033] In the description of the present invention, it should be noted that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting the present invention.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0035] The present invention will be further described in detail below with reference to the accompanying drawings.

[0036] Example 1

[0037] See also Figure 1 、 Figure 2 and Figure 3 The present invention discloses a lock core connection structure, including a door panel 1, a lock core 2 and a limiting member 3; the door panel 1 is provided with a communicating installation channel 11 and an installation hole 12, the installation channel 11 has an installation opening 111, and the installation opening 111 is opened on the outer wall of the door panel 1; the lock core 2 includes an inner shell 21 and a lock tongue 22, the lock tongue 22 is provided in the inner shell 21, the inner shell 21 is inserted into the installation channel 11, the installation channel 11 forms a support for the inner shell 21, the lock tongue 22 can extend out of the installation opening 111, and the inner shell 21 has a limiting shell portion 211 extending to the installation hole 12; the limiting member 3 is provided in the installation hole 12 and connected to the limiting shell portion 211, the limiting member 3 has a limiting surface 31 opposite to the installation opening 111, and the limiting surface 31 abuts against the hole wall of the installation hole 12 to limit the inner shell 21.

[0038] The lock core connection structure disclosed in this embodiment is that the inner shell 21 can be inserted into the installation channel 11 from the installation opening 111, and the inner shell 21 is limited by arranging a limit member 3 in the installation hole 12, thereby avoiding the problem of misalignment or shaking of the inner shell 21 in the installation channel 11. More importantly, since the inner shell 21 is supported by the installation channel 11 and limited by the limit member 3 in the installation hole 12, the outer wall of the door panel 1 does not need to be provided with a fixing hole for screws to pass through to fix the inner shell 21, nor is there a need to provide a cover plate on the outer wall of the door panel 1 for covering the fixing holes and screws, thereby making the outer wall of the door panel 1 more complete and beautiful as a whole.

[0039] like Figure 4 As shown, specifically, in this embodiment, the mounting hole 12 has a limiting hole wall 121 close to the mounting channel 11. When the limiting member 3 is in the limiting position, the limiting surface 31 is against the limiting hole wall 121 to limit the inner shell 21. The overall structure is simple and easy to produce.

[0040] It should be noted that in some other embodiments, a limiting groove can also be set on the hole wall of the installation hole 12. When the limiting member 3 is in the limiting position, the limiting surface 31 can abut against the side wall of the limiting groove to limit the inner shell 21. It can be selected according to actual needs.

[0041] like Figure 2 and Figure 3 As shown, specifically, in this embodiment, the first end 212 of the inner housing 21 is used to allow the lock tongue 22 to extend. Preferably, the first end 212 of the inner housing 21 is provided with a positioning flange 23. The positioning flange 23 has a positioning surface 231 opposite to the limiting surface 31. The positioning surface 231 abuts against the outer wall of the door panel 1 to position and support the inner housing 21. The provision of the positioning flange 23 can make the relative fixation of the inner housing 21 and the mounting channel 11 more stable and accurate. More preferably, in this embodiment, the mounting opening 111 is stepped, and the positioning flange 23 is embedded in the mounting opening 111. The positioning surface 231 abuts against the outer wall of the mounting opening 111. This configuration further improves the stability of the position fixation of the inner housing 21.

[0042] Preferably, in this embodiment, the lock core connection structure also includes a fastening structure 4, which is arranged between the limit member 3 and the limit shell 211 to fix the relative position of the limit member 3 and the limit shell 211. In this way, there is no need to set a fixing hole in the hole wall of the installation hole 12 to fix the limit member 3, thereby reducing the production process and production difficulty of the door panel 1.

[0043] like Figure 4 、 Figure 5 and Figure 6 As shown, preferably, in this embodiment, before the limiting member 3 and the limiting shell portion 211 are relatively fixed, the limiting member 3 can slide along the limiting shell portion 211. When the limiting member 3 slides to the limiting position, the limiting surface 31 abuts against the limiting hole wall 121. At this time, the relative position of the limiting member 3 and the limiting shell portion 211 can be fixed by the fastening structure 4, thereby stably and securely fixing the inner shell 21 in the door panel 1, and the installation is simple and convenient. Preferably, in this embodiment, in order to improve the matching stability between the limiting member 3 and the limiting shell portion 211, so that the limiting member 3 can slide stably and smoothly relative to the limiting shell portion 211, the limiting member 3 is sleeved on the limiting shell portion 211, and the limiting member 3 and the limiting shell portion 211 are sleeved, which occupies less space and has a high adaptability to the internal space size of the door panel 1.

[0044] like Figure 5 and Figure 6As shown, further, in this embodiment, the fastening structure 4 includes a fastener 41 and a protrusion 42, the fastener 41 is inserted into the limiting member 3 along the first direction, the protrusion 42 is provided on the outer wall of the limiting shell portion 211, the protrusion 42 has a contact surface 421, and the contact surface 421 is inclined in the first direction. One end of the fastener 41 abuts against the contact surface 421 to tighten the inner shell 21 along the second direction. Specifically, the second direction is the insertion direction of the inner shell 21. The first direction (please refer to the e1 direction in Figure X) and the second direction (please refer to the e2 direction in Figure X) are opposite. direction), so set, on the one hand, since the abutting surface 421 of the protrusion 42 is inclined in the first direction, the force of the fastener 41 on the protrusion 42 can be decomposed into a first component along the first direction and a second component along the second direction. The second component can tighten the inner shell 21 along the second direction to further improve the stability of the position fixation of the inner shell 21. On the other hand, the fastener 41 is inserted into the limit member 3 along the second direction perpendicular to the first direction. The second direction is the direction perpendicular to the panel surface of the door panel 1, and the operation is also more labor-saving and convenient.

[0045] More specifically, in this embodiment, the abutting surface 421 is a plane inclined in the first direction; of course, in some other embodiments, the abutting surface 421 may also be an arc surface inclined in the first direction, which can be selected according to actual needs.

[0046] It should be noted that, in some other embodiments, the first direction may also be set to be inclined with respect to the second direction, which can be selected according to actual needs and is not a sole limitation here.

[0047] Preferably, in this embodiment, protrusions 42 are provided on both sides of the position-limiting housing 211, and at least two fasteners 41 corresponding to the protrusions 42 are inserted on both sides of the position-limiting member 3 to increase the second component of force along the second direction exerted by the fasteners 41 on the inner housing 21. It should be noted that in some other embodiments, the protrusion 42 may be provided on only one side of the position-limiting housing 211, and the number of fasteners 41 is not limited and can be selected according to actual needs.

[0048] Preferably, in this embodiment, the stopper 3 is elastic and can undergo a certain degree of elastic deformation during the assembly process. Thus, even if there are assembly errors and production tolerances, the stopper 3 can maintain contact between the stopper surface 31 and the wall of the mounting hole 12 by elastic deformation, thereby limiting the position of the inner housing 21. Furthermore, the stopper 3 is more easily fitted within the stopper housing portion 211, making it less susceptible to damage and more durable. Specifically, the stopper 3 can be made of, but not limited to, a plastic or rubber material having a certain degree of elasticity, and the material can be selected based on actual needs, and this is not a single limitation herein.

[0049] like Figure 7As shown, specifically, in this embodiment, the lock core connection structure also includes a handle seat 5, which is used to connect the handle 6. The handle seat 5 covers the installation hole 12 to shield the installation hole 12 and the components in the installation hole 12.

[0050] In addition, this embodiment also provides an installation method for a lock core connection structure, which includes a door panel 1, a lock core 2, and a limit member 3; the door panel 1 is provided with a connecting installation channel 11 and an installation hole 12, the installation channel 11 has an installation opening 111, and the installation opening 111 is opened on the outer wall of the door panel 1; the lock core 2 includes an inner housing 21 and a lock tongue 22, and the lock tongue 22 is provided in the inner housing 21; the installation method includes the following steps:

[0051] Step S1 , set the limiting member 3 in the installation hole 12 , insert the inner shell 21 into the installation channel 11 through the installation opening 111 , so that the installation channel 11 supports the inner shell 21 , and connect the limiting member 3 to the limiting shell portion 211 of the inner shell 21 .

[0052] In step S2, the limiting member 3 can slide along the limiting shell portion 211, and slide the limiting member 3 relative to the limiting shell portion 211 to the limiting position to limit the inner shell 21. The limiting member 3 has a limiting surface 31 opposite to the installation opening 111. When the limiting member 3 is in the limiting position, the limiting surface 31 is against the wall of the installation hole 12.

[0053] Furthermore, the lock core connection structure further includes a fastening structure 4, which includes a fastener 41 and a protrusion 42. The protrusion 42 is provided on the outer wall of the limiting shell portion 211, and the protrusion 42 has an abutting surface 421. After step S2, the installation method further includes:

[0054] Step S3: Insert the fastener 41 into the retaining member 3 along the first direction. The abutment surface 421 is tilted in the first direction so that one end of the fastener 41 abuts against the abutment surface 421, thereby tightening the inner housing 21 in the second direction. The second direction is the insertion direction of the inner housing 21. The first direction (see direction e1 in Figure X) is perpendicular to the second direction (see direction e2 in Figure X). It should be noted that in some other embodiments, the first direction may also be tilted in relation to the second direction, depending on actual needs.

[0055] Furthermore, the first end 212 of the inner shell 21 is used for the lock tongue 22 to extend, and the first end 212 of the inner shell 21 is provided with a positioning flange 23, the positioning flange 23 has a positioning surface 231 opposite to the limiting surface 31, and the mounting opening 111 is stepped; in step S1, the positioning flange 23 is embedded in the mounting opening 111 so that the positioning surface 231 is against the outer wall of the mounting opening 111, thereby realizing positioning support for the inner shell 21.

[0056] It should be noted that in some other embodiments, the mounting opening 111 can also be a through hole, that is, there is no outward outer wall in the mounting opening 111. At this time, the positioning surface 231 of the positioning flange 23 can be offset against the outer wall of the door panel 1 located near the mounting opening 111 to achieve positioning support for the inner shell 21.

[0057] Furthermore, after step S3, the installation method further includes:

[0058] Step S4 , cover the handle base 5 on the installation hole 12 .

[0059] Example 2

[0060] See also Figure 1 、 Figure 2 and Figure 3 , this embodiment discloses a lock core 2, including an inner shell 21, a lock tongue 22, a limiter 3 and a fastening structure 4; the inner shell 21 is used to be inserted into the installation channel 11 of the door panel 1, the lock tongue 22 is provided in the inner shell 21, the lock tongue 22 can extend from the first end 212 of the inner shell 21, the first end 212 of the inner shell 21 is provided with a positioning flange 23, the inner shell 21 also has a limit shell portion 211, the limit shell portion 211 is located behind the first end 212 of the inner shell 21 in the extension direction of the lock tongue 22, the limit shell portion 211 is used to extend to the mounting hole 12 of the door panel 1; the limiting member 3 is used to be set in the mounting hole 12, the limiting member 3 is connected to the limiting shell 211, the positioning flange 23 has a positioning surface 231, the limiting member 3 has a limiting surface 31, the positioning surface 231 is opposite to the limiting surface 31, the positioning surface 231 is used to abut against the outer wall of the door panel 1, and the limiting surface 31 is used to abut against the hole wall of the mounting hole 12; the fastening structure 4 is provided between the limiting member 3 and the limiting shell 211 to fix the relative position of the limiting member 3 and the limiting shell 211.

[0061] The lock core 2 disclosed in this embodiment has an inner shell 21 inserted into the installation channel 11, and the positioning surface 231 of the positioning flange 23 is against the outer wall of the door panel 1 to position and support the inner shell 21, and the limiting member 3 is arranged in the installation hole 12, and the limiting surface 31 of the limiting member 3 is against the hole wall of the installation hole 12 to limit the inner shell 21, thereby avoiding the problem of misalignment or shaking of the inner shell 21 in the installation channel 11. More importantly, under the action of the positioning flange 23 and the limiting member 3, the position of the inner shell 21 can be accurately fixed, and there is no need to set a fixing hole for screws to pass through on the outer wall of the door panel 1 to fix the inner shell 21, nor is there a need to set a cover plate on the outer wall of the door panel 1 to cover the fixing holes and screws, so that the outer wall of the door panel 1 can be more complete and beautiful as a whole.

[0062] Preferably, in this embodiment, the fastening structure 4 is arranged between the limit member 3 and the limit shell 211 to fix the relative position of the limit member 3 and the limit shell 211. In this way, there is no need to set a fixing hole in the hole wall of the installation hole 12 to fix the limit member 3, thereby reducing the production process and production difficulty of the door panel 1.

[0063] It is easy to understand that the mounting channel 11 of the door panel 1 has a mounting opening 111, which is opened on the outer wall of the door panel 1. When the mounting opening 111 is stepped, preferably, in this embodiment, the positioning flange 23 is used to be embedded in the stepped mounting opening 111, and the positioning surface 231 is used to abut against the outer wall of the mounting opening 111. This arrangement is used to further improve the stability of the position fixation of the inner shell 21.

[0064] like Figure 4 、 Figure 5 and Figure 6 As shown, preferably, in this embodiment, before the limiting member 3 and the limiting shell portion 211 are relatively fixed, the limiting member 3 can slide along the limiting shell portion 211. When the limiting member 3 slides to the limiting position, the limiting surface 31 abuts against the limiting hole wall 121. At this time, the relative position of the limiting member 3 and the limiting shell portion 211 can be fixed by the fastening structure 4, thereby stably and securely fixing the inner shell 21 in the door panel 1, and the installation is simple and convenient. Preferably, in this embodiment, in order to improve the matching stability between the limiting member 3 and the limiting shell portion 211, so that the limiting member 3 can slide stably and smoothly relative to the limiting shell portion 211, the limiting member 3 is sleeved on the limiting shell portion 211, and the limiting member 3 and the limiting shell portion 211 are sleeved, which occupies less space and has a high adaptability to the internal space size of the door panel 1.

[0065] like Figure 5 and Figure 6 As shown, further, in this embodiment, the fastening structure 4 includes a fastener 41 and a protrusion 42, the fastener 41 is inserted into the limit member 3 along the first direction, the protrusion 42 is arranged on the outer wall of the limit shell portion 211, the protrusion 42 has a contact surface 421, and the contact surface 421 is arranged inclined in the first direction. One end of the fastener 41 is abutted against the contact surface 421 to tighten the inner shell 21 along the second direction. Specifically, the second direction is the insertion direction of the inner shell 21, and the first direction is perpendicular to the second direction. In this way, one side Since the abutting surface 421 of the protrusion 42 is inclined in the first direction, the force of the fastener 41 on the protrusion 42 can be decomposed into a first component along the first direction and a second component along the second direction. The second component can tighten the inner shell 21 along the second direction to further improve the stability of the position fixation of the inner shell 21. On the other hand, the fastener 41 is inserted into the limit member 3 along the second direction perpendicular to the first direction. The second direction is the direction perpendicular to the panel surface of the door panel 1, and the operation is also more labor-saving and convenient.

[0066] More specifically, in this embodiment, the abutting surface 421 is a plane inclined in the first direction; of course, in some other embodiments, the abutting surface 421 may also be an arc surface inclined in the first direction, which can be selected according to actual needs.

[0067] It should be noted that, in some other embodiments, the first direction may also be set to be inclined with respect to the second direction, which can be selected according to actual needs and is not a sole limitation here.

[0068] Preferably, in this embodiment, protrusions 42 are provided on both sides of the position-limiting housing 211, and at least two fasteners 41 corresponding to the protrusions 42 are inserted on both sides of the position-limiting member 3 to increase the second component of force along the second direction exerted by the fasteners 41 on the inner housing 21. It should be noted that in some other embodiments, the protrusion 42 may be provided on only one side of the position-limiting housing 211, and the number of fasteners 41 is not limited and can be selected according to actual needs.

[0069] Preferably, in this embodiment, the stopper 3 is elastic and can undergo a certain degree of elastic deformation during the assembly process. Thus, even if there are assembly errors and production tolerances, the stopper 3 can maintain contact between the stopper surface 31 and the wall of the mounting hole 12 by elastic deformation, thereby limiting the position of the inner housing 21. Furthermore, the stopper 3 is more easily fitted within the stopper housing portion 211, making it less susceptible to damage and more durable. Specifically, the stopper 3 can be made of, but not limited to, a plastic or rubber material having a certain degree of elasticity, and the material can be selected based on actual needs, and this is not a single limitation herein.

[0070] In summary, the lock core connection structure and the lock core 2 and the installation method of the lock core connection structure disclosed in the present invention can at least bring the following beneficial technical effects:

[0071] 1) There is no need to provide fixing holes for screws to pass through on the outer wall of the door panel 1 to fix the inner housing 21, nor is there a need to provide a cover plate on the outer wall of the door panel 1 to cover the fixing holes and screws, thereby making the outer wall of the door panel 1 more complete and beautiful as a whole;

[0072] 2) The positioning surface 231 of the positioning flange 23 is opposite to the limiting surface 31 of the limiting member 3. The positioning surface 231 abuts against the outer wall of the door panel 1 to position and support the inner housing 21, thereby making the relative fixation of the inner housing 21 and the mounting channel 11 more stable and accurate;

[0073] 3) The limiting member 3 can slide along the limiting shell 211. When the limiting member 3 slides to the limiting position, the limiting surface 31 abuts against the limiting hole wall 121 to limit the inner shell 21, making installation simple and convenient. In addition, the limiting member 3 and the limiting shell 211 are sleeved together, allowing the limiting member 3 to slide stably and smoothly relative to the limiting shell 211.

[0074] 4) The fastening structure 4 is provided between the stopper 3 and the stopper housing 211 to fix the relative positions of the stopper 3 and the stopper housing 211. This eliminates the need to provide a fixing hole in the wall of the mounting hole 12 to secure the stopper 3, thereby reducing the production process and difficulty of the door panel 1.

[0075] 5) The force of the fastener 41 on the protrusion 42 can be decomposed into a first force component along the first direction and a second force component along the second direction. The second force component can tighten the inner housing 21 along the second direction to further improve the stability of the position fixation of the inner housing 21;

[0076] 6) The limiting member 3 is elastic. Even if there are assembly errors and production tolerances, the limiting member 3 can produce elastic deformation to keep the limiting surface 31 against the hole wall of the installation hole 12, thereby achieving the limitation of the inner shell 21.

[0077] The technical means disclosed in the solutions of the present invention are not limited to those disclosed in the above-mentioned embodiments, but also include technical solutions composed of any combination of the above-mentioned technical features. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. The lock core connection structure is characterized in that: include: A door panel (1), wherein the door panel (1) is provided with a communicating mounting channel (11) and a mounting hole (12), the mounting channel (11) having a mounting opening (111), and the mounting opening (111) is opened on an outer side wall of the door panel (1); A lock core (2) comprises an inner shell (21) and a lock tongue (22), wherein the lock tongue (22) is arranged on the inner shell (21), the inner shell (21) is inserted into the mounting channel (11), the mounting channel (11) forms a support for the inner shell (21), the lock tongue (22) can extend out of the mounting opening (111), and the inner shell (21) has a limiting shell portion (211) extending to the mounting hole (12); A limiting member (3) is arranged in the installation hole (12) and connected to the limiting shell portion (211). The limiting member (3) has a limiting surface (31) opposite to the installation opening (111). The limiting surface (31) abuts against the hole wall of the installation hole (12) to limit the inner shell (21).

2. The lock core connection structure according to claim 1, characterized in that: The limiting member (3) can slide along the limiting shell (211); when the limiting member (3) slides to the limiting position, the limiting surface (31) abuts against the hole wall of the installation hole (12).

3. The lock core connection structure according to claim 1 or 2, characterized in that: The limiting member (3) is sleeved on the limiting shell (211).

4. The lock core connection structure according to claim 1, characterized in that: The first end (212) of the inner shell (21) is used for allowing the lock tongue (22) to extend. The first end (212) of the inner shell (21) is provided with a positioning flange (23). The positioning flange (23) has a positioning surface (231) opposite to the limiting surface (31). The positioning surface (231) abuts against the outer side wall of the door panel (1) to position and support the inner shell (21).

5. The lock core connection structure according to claim 4, characterized in that: The installation opening (111) is stepped, the positioning flange (23) is embedded in the installation opening (111), and the positioning surface (231) abuts against the outer side wall of the installation opening (111).

6. The lock core connection structure according to claim 1, 2, 4 or 5, characterized in that: The lock core connection structure further comprises a fastening structure (4), wherein the fastening structure (4) is provided between the position-limiting member (3) and the position-limiting shell (211) to fix the relative position of the position-limiting member (3) and the position-limiting shell (211).

7. The lock core connection structure according to claim 6, characterized in that: The fastening structure (4) comprises a fastener (41) and a protrusion (42), wherein the fastener (41) is inserted into the limiting member (3) along a first direction, and the protrusion (42) is arranged on the outer side wall of the limiting shell (211), and the protrusion (42) has a contact surface (421), and the contact surface (421) is arranged inclined in the first direction, and one end of the fastener (41) contacts the contact surface (421) to tighten the inner shell (21) along a second direction; the second direction is the insertion direction of the inner shell (21), and the first direction is perpendicular to the second direction.

8. The lock core connection structure according to claim 1, characterized in that: The limiting member (3) is elastic.

9. Lock cylinder, characterized in that, The invention comprises an inner shell (21), a locking tongue (22), a limiting member (3) and a fastening structure (4); the locking tongue (22) is provided on the inner shell (21), the locking tongue (22) can extend from the first end (212) of the inner shell (21), the first end (212) of the inner shell (21) is provided with a positioning flange (23), the inner shell (21) further comprises a limiting shell portion (211), the limiting shell portion (211) is located behind the first end (212) of the inner shell (21) in the extending direction of the locking tongue (22); The limiting member (3) is connected to the limiting shell (211), the positioning flange (23) has a positioning surface (231), the limiting member (3) has a limiting surface (31), and the positioning surface (231) is opposite to the limiting surface (31); the fastening structure (4) is provided between the limiting member (3) and the limiting shell (211) to fix the relative position of the limiting member (3) and the limiting shell (211).

10. The lock cylinder according to claim 9, characterized in that: The limiting member (3) can slide along the limiting shell (211); when the limiting member (3) slides to the limiting position, the limiting surface (31) is used to abut against the hole wall of the installation hole (12) of the door panel (1); and the fastening structure (4) fixes the relative position of the limiting member (3) and the limiting shell (211).

11. The lock cylinder according to claim 9 or 10, characterized in that: The limiting member (3) is sleeved on the limiting shell (211).

12. The lock cylinder according to claim 9 or 10, characterized in that: The fastening structure (4) comprises a fastener (41) and a protrusion (42), wherein the fastener (41) is inserted into the limiting member (3) along a first direction, and the protrusion (42) is arranged on the outer side wall of the limiting shell (211), and the protrusion (42) has a contact surface (421), and the contact surface (421) is arranged inclined in the first direction, and one end of the fastener (41) contacts the contact surface (421) to tighten the inner shell (21) along a second direction; the second direction is the insertion direction of the inner shell (21), and the first direction is perpendicular to the second direction.

13. The installation method of the lock core connection structure is characterized in that: The lock core connection structure comprises a door panel (1), a lock core (2) and a limiter (3); the door panel (1) is provided with a communicating installation channel (11) and an installation hole (12); the installation channel (11) has an installation opening (111), and the installation opening (111) is opened on the outer side wall of the door panel (1); the lock core (2) comprises an inner shell (21) and a lock tongue (22), and the lock tongue (22) is provided on the inner shell (21); the installation method comprises the following steps: The limiting member (3) is arranged in the installation hole (12), and the inner shell (21) is inserted into the installation channel (11) through the installation opening (111), so that the installation channel (11) supports the inner shell (21), and the limiting member (3) is connected to the limiting shell portion (211) of the inner shell (21); The limiting member (3) is slid relative to the limiting shell portion (211) to a limiting position to limit the inner shell (21); the limiting member (3) has a limiting surface (31) opposite to the installation opening (111); when the limiting member (3) is in the limiting position, the limiting surface (31) abuts against the hole wall of the installation hole (12).

14. The installation method according to claim 13, characterized in that: The lock core connection structure further comprises a fastening structure (4), the fastening structure (4) comprising a fastener (41) and a protrusion (42), the protrusion (42) being arranged on the outer side wall of the limiting shell portion (211), and the protrusion (42) having an abutting surface (421); The fastener (41) is inserted into the limiting member (3) along a first direction, and the abutting surface (421) is arranged to be inclined in the first direction so that one end of the fastener (41) abuts against the abutting surface (421) to tighten the inner shell (21) along a second direction; the second direction is the insertion direction of the inner shell (21), and the first direction is perpendicular to the second direction.

15. The installation method according to claim 13, characterized in that: The first end (212) of the inner shell (21) is used for the locking tongue (22) to extend out, and the first end (212) of the inner shell (21) is provided with a positioning flange (23), and the positioning flange (23) has a positioning surface (231) opposite to the limiting surface (31); The positioning surface (231) is abutted against the outer side wall of the door panel (1) to position the inner shell (21).

16. The installation method according to claim 15, characterized in that: The installation opening (111) is stepped; the positioning flange (23) is embedded in the installation opening (111) so that the positioning surface (231) abuts against the outer side wall of the installation opening (111).

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