Lock cylinder with adjustable length

Abstract

The utility model discloses a length-adjustable lock cylinder, which belongs to the technical field of locksets, solves the problem that the increase and decrease difficulty of a lengthening sheet is high, and adopts the technical scheme that the length-adjustable lock cylinder mainly comprises a front lock body assembly, a rear lock body assembly and a lock cylinder shifting wheel, and a fixed mounting seat is arranged between the front lock body assembly and the rear lock body assembly; adjusting pieces are arranged between the fixed installation base and the front lock body assembly and between the fixed installation base and the rear lock body assembly, the multiple adjusting pieces are distributed in the direction from the front lock body assembly to the rear lock body assembly, and the adjusting pieces located on the two sides of the lock cylinder shifting wheel are symmetrically arranged and abut against the lock cylinder shifting wheel. The adjusting piece located between the front lock body assembly and the lock cylinder shifting wheel is connected with the front lock body assembly in an inserted mode or connected with the adjacent adjusting piece in an inserted mode, and the adjusting piece located between the rear lock body assembly and the lock cylinder shifting wheel is connected with the rear lock body assembly in an inserted mode or connected with the adjacent adjusting piece in an inserted mode. According to the utility model, the adjusting piece is disassembled and assembled mainly by adopting an insertion mounting mode, so that the disassembling and assembling difficulty of the adjusting piece is reduced.

Description

Technical Field

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

[0002] When door panels of different thicknesses are matched with lock cores, the requirements for the inner and outer lengths of the lock cores are different. This results in the lock cores installed on door panels of different thicknesses also having to be of different lengths to match the thickness of the door. Therefore, when producing the lock core, when the length of the lock core does not match the thickness of the door panel, the lock core needs to be re-customized according to the actual thickness of the installed door panel; or the lock core manufacturer processes many lock cores of different lengths for users to choose when replacing the lock core. Whether customizing the lock core according to the actual size or processing many lock cores of different lengths first, it will increase the cost of the lock core manufacturer and waste production resources, and too many types of lock core lengths can easily cause trouble for users when choosing lock cores.

[0003] The prior art CN110242107A discloses a length-adjustable lock core, which includes a front lock body assembly, a rear lock body assembly, a lock core dial, an extension assembly and a fixed mounting seat, wherein the front lock body assembly, the rear lock body assembly and the extension assembly are arranged on the fixed mounting seat, and the lock core dial is arranged in the middle of the extension assembly. The front lock body assembly includes a front lock shell, on which a lock core column is arranged, a handle is connected to the rear side of the lock core column, and the front end of the lock core column is connected to the outer lock shell and the lock rod; the rear lock body assembly includes a rear lock shell, on which a lever is arranged, and a connecting rod is arranged inside the lever; the extension assembly includes a plurality of superimposable extension sheets; the fixed mounting seat includes a mounting seat, on which a plurality of mounting holes are arranged, and a fixing column is arranged on the mounting hole. When fixing the growth piece, a plurality of through holes are provided on the growth piece, and a mounting screw is provided in the middle of the growth piece. The mounting screw fixes the growth piece to the outer lock shell or the inner lock shell, so that the plurality of growth pieces are stably arranged between the outer lock shell and the fixed mounting seat or the inner lock shell and the fixed mounting seat.

[0004] In the prior art, although the stability of the installation of the extension piece can be improved by installing screws, since the overall size of the lock core is relatively small, when the installation screws are passed through the through holes to fix the extension piece, the difficulty of disassembling and assembling the extension piece is increased due to the inconvenience of operation in the small space. In addition, in the prior art, the essential purpose of setting the extension piece is to facilitate the adjustment of the overall length of the lock core. After the lock core is stably fixed by the installation screws, when adjusting the length of the lock core, the installation screws need to be repeatedly removed to increase or decrease the number of extension pieces to adjust the length of the lock core. Repeated removal of the installation screws makes it difficult to increase or decrease the extension piece, thereby reducing the installation efficiency of the lock core. Utility Model Content

[0005] The utility model aims to provide a lock core with adjustable length, solve the problem that it is difficult to increase or decrease the lengthening piece, and adopt a plug-in installation method to disassemble and assemble the adjusting piece, thereby reducing the difficulty of disassembling and assembling the adjusting piece.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a lock core with adjustable length, comprising a front lock body assembly, a rear lock body assembly and a lock core dial wheel arranged between the front lock body assembly and the rear lock body assembly, a fixed mounting seat is provided between the front lock body assembly and the rear lock body assembly, and adjusting members for adjusting the length of the lock core are provided between the fixed mounting seat and the front lock body assembly and between the fixed mounting seat and the rear lock body assembly, and a plurality of adjusting members are distributed along the direction of the front lock body assembly toward the rear lock body assembly, the adjusting members located on both sides of the lock core dial wheel are symmetrically arranged and abut against the lock core dial wheel, the adjusting member located between the front lock body assembly and the lock core dial wheel is plugged into the front lock body assembly or into the adjusting member adjacent thereto, and the adjusting member located between the rear lock body assembly and the lock core dial wheel is plugged into the rear lock body assembly or into the adjusting member adjacent thereto.

[0007] After adopting the above technical scheme, the utility model has the following advantages: when installing the lock core on the door panel, first compare the thickness of the door panel with the overall length of the current lock core. If the overall length of the lock core is greater than the thickness of the door panel, the number of adjusting pieces symmetrically distributed on both sides of the lock core dial wheel is reduced, so that the overall length of the lock core is adapted to the thickness of the door panel. When reducing the number of adjusting pieces, the adjusting pieces plugged into the front lock body assembly or the rear lock body assembly or the adjusting pieces adjacent thereto are pulled out to remove some of the adjusting pieces. If the thickness of the door panel is greater than the overall length of the lock core, the adjusting piece to be added is plugged into the front lock body assembly or the adjusting piece. The number of adjusting pieces is increased or decreased by plugging or pulling, which is convenient for disassembly and assembly of the adjusting pieces and reduces the installation efficiency of the lock core due to the high difficulty of disassembly of the adjusting pieces. Since the overall size of the lock core is small, when adjusting the number of adjusting pieces by plugging, the entire adjusting piece can be directly pinched, and then the adjusting piece can be plugged or pulled out to increase or decrease the adjusting piece, thereby improving the efficiency of increasing or decreasing the adjusting piece and facilitating the adjustment of the overall length of the lock core. Compared with the method of fixing and disassembling by installing screws in the prior art CN110242107A, the plug-in method is convenient for deleting or adding adjusting parts, reducing the difficulty of disassembling and assembling adjusting parts, and at the same time reducing the difficulty of adding and reducing adjusting parts due to the small installation space, thereby reducing the possibility of affecting the installation efficiency of the lock core due to the high difficulty of deleting adjusting parts.

[0008] Furthermore, the adjusting member is provided with a first through hole and a second through hole, the front lock body assembly or the rear lock body assembly is passed through the first through hole, and the fixed mounting seat is passed through the second through hole.

[0009] By adopting the above-mentioned technical solution, when the adjusting piece is installed between the fixed mounting seat and the front lock body assembly or the rear lock body assembly, the front lock body assembly is inserted into the first through hole, and the fixed mounting seat is inserted into the second through hole, so that the adjusting piece is sleeved between the front lock body assembly and the fixed mounting seat, and then the adjusting piece is stably set between the front lock body assembly and the lock cylinder dial wheel by inserting the adjusting piece and the front lock body assembly, and the adjusting piece is installed by sleeve connection between the first through hole and the second through hole and insertion of the adjusting piece itself, thereby reducing the difficulty of disassembly and assembly of the adjusting piece, and thereby reducing the difficulty of adjusting the length of the lock cylinder.

[0010] Furthermore, both the front lock body assembly and the rear lock body assembly are provided with plug-in slots, the adjusting member is provided with an auxiliary plug-in slot, the adjusting member is provided with a convex rib, and the convex rib is plugged into the plug-in slot or the auxiliary plug-in slot.

[0011] By adopting the above-mentioned technical solution, when the adjusting part is plugged into the front lock body assembly or the rear lock body assembly, the convex rib on the adjusting part is plugged into the plug-in groove. When there are multiple adjusting parts, when two adjacent adjusting parts are plugged in, the convex rib on the adjusting part is plugged into the auxiliary plug-in groove on the other adjusting part. Through the arrangement of the convex rib and the plug-in groove or the auxiliary plug-in groove, it is convenient to plug the adjusting part into the adjusting part, the front lock body assembly or the rear lock body assembly, and then it is convenient to adjust the overall length of the lock core, reducing the possibility that the difficulty of disassembly and assembly of the adjusting part affects the installation efficiency of the lock core.

[0012] Furthermore, the front lock body assembly and the rear lock body assembly are both provided with mounting holes, the two sides of the fixed mounting seat are respectively inserted into the two mounting holes, and the fixed mounting seat and the front lock body assembly and the rear lock body assembly are fastened together by fixing parts.

[0013] By adopting the above-mentioned technical solution, the two sides of the fixed mounting seat are respectively inserted into the mounting holes on the front lock body assembly and the rear lock body assembly, and then the front fixed mounting seat is fastened to the front lock body assembly and the rear lock body assembly through fixing parts; by inserting the fixed mounting seat into the mounting hole, it is convenient to disassemble the fixed mounting seat and the front lock body assembly or the rear lock body assembly when increasing or decreasing the number of adjusting parts. After the adjusting parts are increased or decreased, the fixed mounting seat is fastened to the front lock body assembly or the rear lock body assembly through fasteners, thereby reducing the possibility of unstable installation of the fixed mounting seat and the adjusting parts.

[0014] Furthermore, the fixed mounting seat is provided with a first fastening hole, the front lock body assembly is provided with a second fastening hole coaxial with the first fastening hole, and the fixing piece is threadedly connected to the first fastening hole and inserted into the second fastening hole.

[0015] By adopting the above-mentioned technical solution, the fastener passes through the second fastening hole and is threadedly connected to the first fastening hole. The fixed mounting frame is fastened to the front lock body assembly through the threaded connection between the fixing piece and the first fastening hole, thereby reducing the possibility of disengagement between the fixed mounting seat and the front lock body assembly. After the fixing piece is fully fastened in the first fastening hole, the fixing piece remains inserted in the second fastening hole. The fixing mounting seat and the front lock body assembly are limited in the axial direction of the mounting hole through the insertion of the fixing piece and the second fastening hole, thereby reducing the possibility of the fixed mounting seat being unstable in the length direction of the lock core and sliding against each other.

[0016] Furthermore, the first fastening holes, the second fastening holes and the adjusting members are distributed in plurality along the direction of the front lock body assembly toward the lock cylinder dial, the plurality of first fastening holes correspond one to one with the plurality of second fastening holes and are coaxial, and the number of adjusting members located on the same side of the lock cylinder dial is at least one less than the number of the first fastening holes.

[0017] By adopting the above-mentioned technical scheme, a plurality of first fastening holes, second fastening holes and adjusting members are provided, wherein the first fastening hole corresponds to the second fastening hole coaxially, so that the fixing member enters the first fastening hole from the second fastening hole to fasten the fixed mounting seat to the front lock body assembly and the rear lock body assembly. When multiple adjusting members are installed, the number of adjusting members on the lock cylinder dial side is at least one less than the number of the first fastening holes, so that when the number of adjusting members is the largest, the fixed mounting seat can still be fastened between the front lock body assembly and the rear lock body assembly through the remaining first fastening holes or the second fastening holes, thereby reducing the possibility that the fixed mounting seat and the front lock body assembly and the rear lock body assembly cannot be well fastened when the number of adjusting members is large.

[0018] Furthermore, the thickness of the adjusting member is the same as the distance between two adjacent first fastening holes.

[0019] By adopting the above-mentioned technical solution, when the adjusting piece is sleeved on the fixed mounting seat, when the thickness of the adjusting piece is the same as the distance between two adjacent first fastening holes, one adjusting piece only blocks one first fastening hole, and as the number of adjusting pieces increases, during the process of the fixed mounting seat inserted in the mounting hole being moved out of the mounting hole, when the first fastening hole and the second fastening hole are misaligned, the misaligned first fastening hole and the second fastening hole are still kept coaxial, so that when the number of adjusting pieces increases, the fixing piece can enter the first fastening hole through the second fastening hole, thereby reducing the influence of increasing or decreasing the number of adjusting pieces on the fastening of the fixed mounting seat.

[0020] Furthermore, a first step surface is provided on a side surface of the adjusting member facing the front lock body assembly, and the front lock body assembly abuts against the first step surface.

[0021] By adopting the above-mentioned technical solution, the front lock body assembly reduces the possibility of a gap between the front lock body assembly and the adjusting member by abutting against the first step surface. The axial surface of the first step surface limits the displacement of the adjusting member along the radial direction of the front lock body assembly, thereby reducing the possibility of displacement of the adjusting member and the front lock body assembly in the radial direction.

[0022] Furthermore, a second step surface is provided on the lock core dial wheel, and the adjusting member abuts against the second step surface.

[0023] By adopting the above-mentioned technical solution, the adjusting member and the lock core dial wheel are sleeved through the second step surface, thereby reducing the possibility of a gap between the adjusting member and the lock core dial wheel, and the adjusting member abuts against the lock core dial wheel through the second step surface, thereby reducing the possibility of the adjusting member being offset in the radial direction of the lock core dial wheel.

[0024] Furthermore, the fixed mounting seat is provided with a third step surface, and the adjusting member abuts against the third step surface.

[0025] By adopting the above technical solution, the adjusting member abuts against the third step surface on the fixed mounting seat, thereby reducing the possibility of a gap between the adjusting member and the fixed mounting seat, and reducing the possibility of offset between the adjusting member and the fixed mounting seat along their radial direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The utility model is further described below in conjunction with the accompanying drawings:

[0027] Figure 1 It is an overall schematic diagram of a length-adjustable lock cylinder of the utility model;

[0028] Figure 2 It is a partial cross-sectional view of the utility model;

[0029] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle;

[0030] Figure 4 For this utility model Figure 2 Enlarged view of point B in the middle;

[0031] Figure 5 It is a structural schematic diagram of the adjusting member in the utility model;

[0032] Figure 6 It is a structural schematic diagram of the auxiliary plug slot in the utility model;

[0033] Figure 7 It is a schematic diagram of installing an adjusting member between the front lock body assembly and the fixed mounting seat in the utility model;

[0034] Figure 8 It is a schematic diagram of installing an adjusting member between the rear lock body assembly and the fixed mounting seat in the utility model. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0036] The terms "first", "second", etc. (if any) in the specification and claims of the present utility model are used to distinguish similar objects, rather than to describe a specific order or sequence. Even if "second" is used to distinguish a certain technical feature, it does not necessarily mean that it has "first". It should be understood that in the present utility model, "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. It should be understood that in the present utility model, "multiple" refers to two or more. "And / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, X and / or Y can represent: X exists alone, X and Y exist at the same time, and Y exists alone. The character " / " generally indicates that the related objects before and after are in an "or" relationship. "Contains X, Y and Z", "Contains X, Y, Z" means that X, Y, and Z are all included, "Contains X, Y or Z" means that one of X, Y, and Z is included, and "Contains X, Y and / or Z" means that any one, any two, or three of X, Y, and Z are included.

[0037] The following specific embodiments are used to describe the technical solution of the utility model in detail. The following specific embodiments can be combined or replaced with each other according to actual conditions, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0038] like Figure 1 and Figure 2As shown, the utility model provides a lock core with adjustable length, comprising a front lock body assembly 1, a rear lock body assembly 2 and a lock core dial wheel 4 arranged between the front lock body assembly 1 and the rear lock body assembly 2, the lock core dial wheel 4 can rotate relative to the outer shells of the front lock body assembly 1 and the rear lock body assembly 2, and a fixed mounting seat 3 is arranged between the front lock body assembly 1 and the rear lock body assembly 2; mounting holes are arranged on the side surfaces opposite to each other of the front lock body assembly 1 and the rear lock body assembly 2, specifically, the mounting hole on the side surface of the front lock body assembly 1 facing the rear lock body assembly 2 is the first mounting hole 11, and the mounting hole on the side surface of the rear lock body assembly 2 facing the front lock body assembly 1 is the second mounting hole 21, one side of the fixed mounting seat 3 is inserted into the first mounting hole 11, and the other side is inserted into the second mounting hole 21, a fixing piece 33 is arranged between the fixed mounting seat 3 and the front lock body assembly 1, the fixing piece 33 fastens the fixed mounting seat 3 to the front lock body assembly 1, and the other side of the fixed mounting seat 3 is also fastened to the rear lock body assembly 2 through the fixing piece 33. An adjusting member 5 is provided between the fixed mounting seat 3 and the front lock body assembly 1, and multiple adjusting members 5 can be provided. An adjusting member 5 is also provided between the fixed mounting seat 3 and the rear lock body assembly 2, and multiple adjusting members 5 can also be provided. The length of the lock core can be adjusted by increasing or decreasing the number of adjusting members 5 on both sides of the lock core dial wheel 4, so that the length of the lock core is suitable for the thickness of the door panel.

[0039] In this embodiment, if Figure 2 As shown, a plurality of adjusting members 5 are arranged between the front lock body assembly 1 and the fixed mounting seat 3, and the adjustment of the lock core length can be achieved by increasing or decreasing the number of adjusting members 5 between the front lock body assembly 1 and the fixed mounting seat 3; alternatively, a plurality of adjusting members 5 can also be arranged between the rear lock body assembly 2 and the fixed mounting seat 3, and the adjustment of the lock core length can also be achieved by increasing or decreasing the number of adjusting members 5 between the rear lock body assembly 2 and the fixed mounting seat 3. The adjusting members 5 between the front lock body assembly 1 and the fixed mounting seat 3 and the adjusting members 5 between the rear lock body assembly 2 and the fixed mounting seat 3 are respectively located on both sides of the lock core dial wheel 4, the adjusting member 5 located between the front lock body 1 assembly and the fixed mounting seat 3 is plugged into the front lock body assembly 1 or is plugged into the adjusting member 5 adjacent thereto in the direction toward the front lock body assembly 1, and the adjusting member 5 located between the rear lock body assembly 2 and the fixed mounting seat 3 is plugged into the rear lock body assembly 2 or is plugged into the adjusting member 5 adjacent thereto in the direction toward the rear lock body assembly 2. Compared with the method of fixing and disassembling by installing screws in the prior art CN110242107A, the adjusting member 5 is plugged into the front lock body assembly 1, or the rear lock body assembly 2 or the adjusting member 5 adjacent thereto by plugging, so that the adjusting member 5 is less difficult to disassemble and assemble, and when disassembling and assembling the adjusting member 5, the adjusting member 5 can be acted on the outer peripheral wall of the adjusting member 5 without being affected by the smaller installation space, thereby reducing the difficulty of disassembling and assembling the adjusting member 5, and further reducing the possibility that the difficulty of disassembling and assembling the adjusting member 5 affects the installation efficiency of the lock core.

[0040] In order to improve the stability of the installation of the adjusting member 5, as Figures 2 to 5As shown, the adjusting member 5 is provided with a first through hole 51 and a second through hole 52. When the adjusting member 5 is installed between the front lock body assembly 1 and the fixed mounting bracket, the first through hole 51 is sleeved on the outer shell of the front lock body assembly 1, and the second through hole 52 is sleeved on the fixed mounting bracket 3. Figure 4 As shown, specifically, a first step surface 14 is provided on the outer shell of the front lock body assembly 1, and a second step surface 31 is provided on the side of the fixed mounting seat 3 facing the front lock body assembly 1. When the adjusting member 5 is sleeved on the front lock body assembly 1 and the fixed mounting seat 3, the adjusting member 5 abuts against the first step surface 14 and the second step surface 31; Figure 2 As shown, when the adjusting member 5 located between the rear lock body assembly 2 and the fixed mounting seat 3 is installed, a third step surface 22 is provided on one end of the rear lock body assembly 2 facing the front lock body assembly 1, and a fourth step surface 34 is provided on one end of the fixed mounting seat 3 facing the rear lock body assembly 2. When the first through hole 51 is sleeved on the rear lock body assembly 2, the adjusting member 5 abuts on the third step surface 22, and when the second through hole 52 is sleeved on the fixed mounting seat 3, the adjusting member 5 abuts on the fourth step surface 34. The sleeve connection of the first through hole 51 and the second through hole 52 reduces the possibility of the adjusting member 5 rotating relative to the front lock body assembly 1 or the rear lock body assembly 2 after installation. Through the sleeve connection of the first through hole 51 and the second through hole 52 and the insertion of the adjusting member 5 itself, the stability of the adjusting member 5 after insertion is improved, and the possibility of the adjusting member 5 detaching from the front lock body assembly 1, the rear lock body assembly 2 or the fixed mounting seat 3 is reduced.

[0041] Regarding the adjustment member 5 located between the front lock body assembly 1 and the lock cylinder dial wheel 4, in order to further improve the stability of the adjustment member 5, as shown in FIG. Figure 3 As shown, a first step surface 14 is also provided on the side surface of the adjusting member 5 facing away from the front lock body assembly 1. The adjusting member 5 that is not in direct contact with the front lock body assembly 1 is sleeved on the front lock body assembly 1 and abuts against the first step surface 14 of the adjusting member 5, thereby reducing the possibility of gaps and instability between the remaining adjacent adjusting members 5, thereby improving the stability between the front lock body assembly 1 and the adjusting member 5, and reducing the possibility of the adjusting member 5 deviating from the front lock body assembly 1 in the radial direction of the first through hole 51.

[0042] In order to facilitate the plugging of the adjusting member 5 with the front lock body assembly 1 or the rear lock body assembly 2, as shown in FIG. Figure 4 and Figure 5As shown, for the adjusting member 5 located between the front lock body assembly 1 and the fixed mounting seat 3, a convex rib 54 is provided on one side of the adjusting member 5 facing the front lock body assembly 1, a plug-in groove 13 is provided on one side of the front lock body assembly 1 facing the lock cylinder dial wheel 4, and an auxiliary plug-in groove 55 is provided on one side of the adjusting member 5 facing away from the front lock body assembly 1. When the adjusting member 5 is installed, the convex rib 54 on the adjusting member 5 contacting the front lock body assembly 1 is plugged into the plug-in groove 13, and the remaining convex ribs 54 on the adjusting member 5 located between the front lock body assembly 1 and the fixed mounting seat 3 are connected along the side facing the front lock body assembly 1. 1 is inserted into the auxiliary insertion groove 55. Through the insertion of the convex rib 54 with the insertion groove 13 or the auxiliary insertion groove 55, when removing the adjusting member 5, it is only necessary to pull the adjusting member 5 in the opposite direction along the insertion direction to remove the adjusting member 5 from the front lock body assembly 1. When installing the adjusting member 5, it is only necessary to ensure that the first through hole 51 and the second through hole 52 are sleeved, and the convex rib 54 is aligned with the insertion groove 13 or the auxiliary insertion groove 55, so that the adjusting member 5 can be installed on the front lock body assembly 1 and the fixed mounting seat 3, which is convenient for disassembly and assembly of the adjusting member 5 and reduces the difficulty of disassembly and assembly of the adjusting member 5. The adjusting member 5 located between the front lock body assembly 1 and the fixed mounting seat 3 and the adjusting member 5 located between the rear lock body assembly 2 and the fixed mounting seat 3 are symmetrically arranged along the radial direction of the lock core dial wheel 4, so that the convex rib 54 on the adjusting member 5 between the rear lock body assembly 2 and the fixed mounting seat 3 is inserted toward the rear lock body assembly 2.

[0043] like Figure 2 , Figure 7 and Figure 8 As shown, when adjusting the length of the lock core, the number of adjusting parts 5 between the front lock body assembly 1 and the fixed mounting seat 3 can be one or two, or three or even more adjusting parts 5 can be set according to the actual required length of the lock core, and the adjusting part 5 between the front lock body assembly 1 and the fixed mounting seat 3 can also be completely removed according to the thickness of the door panel; the number of adjusting parts 5 between the rear lock body assembly 2 and the fixed mounting seat 3 can also be one or two, or three or even more adjusting parts 5 can be set according to the required length of the lock core, and the adjusting part 5 between the rear lock body assembly 2 and the fixed mounting seat 3 can also be completely removed according to the thickness of the door panel, so that the length of the lock core is adapted to the thickness of the door panel, thereby improving the installation efficiency of the lock core.

[0044] In this embodiment, if Figure 2 and Figure 4As shown, a first fastening hole 32 is provided on the fixed mounting seat 3, and a second fastening hole 12 is provided on the front lock body assembly 1 and the rear lock body assembly 2. There are multiple first fastening holes 32 and second fastening holes 12 distributed on both sides of the fixed mounting seat 3 along the length direction of the lock core. The fixing piece 33 is inserted into the second fastening hole 12 and then threadedly connected to the first fastening hole 32. After the fixing piece 33 is connected to the first fastening hole 32, it is still inserted in the second fastening hole 12. The fixing piece 33 is threadedly connected to the first fastening hole 32 to reduce the possibility of the fixing piece 33 being disengaged from the fixed mounting seat 3. The fixing piece 33 remains inserted into the second fastening hole 12, so that the fixed mounting seat 3 and the front lock body assembly 1 and the rear lock body assembly 2 are limited along the length direction of the lock core, reducing the possibility of the fixed mounting seat 3 being detached from the mounting hole.

[0045] In order to facilitate the installation of the fixed mounting seat 3, the first fastening hole 32 passes through the fixed mounting seat 3. Compared with the case where the first fastening hole 32 does not pass through the fixed mounting seat 3, both ends of the first fastening hole 32 can be coaxial with the second fastening hole 12, thereby increasing the probability of the first fastening hole 32 being coaxial with the second fastening hole 12 and reducing the difficulty of the first fastening hole 32 being coaxial with the second fastening hole 12, thereby facilitating the installation of the fixed mounting seat 3.

[0046] like Figure 2 and Figure 4 as well as Figure 7 and Figure 8 As shown, the number of adjusting members 5 located on the same side of the lock cylinder dial 4 is at least one less than the number of the first fastening holes 32 on the same side, and the number of the first fastening holes 32 is the same as the number of the second fastening holes 12. When the maximum number of adjusting members 5 is set on one side of the lock cylinder dial 4, the fixed mounting seat 3 and the fixing member 33 are fastened to the front lock body assembly 1 or the rear lock body assembly 2 through the remaining first fastening holes 32 and the second fastening holes 12, thereby reducing the possibility of the fixed mounting seat 3 and the front lock body assembly 1 being detached due to the lack of the fixing member 33.

[0047] In this embodiment, if Figure 4 , Figure 7 and Figure 8As shown, the distance between the axes of the two adjacent first fastening holes 32 located on the same side of the fixed mounting seat 3 is D1, and the distance between the axes of the two adjacent second fastening holes 12 located on the same side of the fixed mounting seat 3 is also D1. The thickness of the adjusting member 5 sleeved on the upper part of the fixed mounting seat 3 is D2, and the value of D1 is the same as the value of D2. Since the values ​​of D1 and D2 are the same, when the adjusting member 5 is increased or decreased, it is ensured that the distance moved between the fixed mounting seat 3 and the front lock body assembly 1 or the rear lock body assembly 2 when the adjusting member 5 is increased or decreased is D1 or a multiple of D1, so that the second fastening hole 12 is still coaxially aligned with the other first fastening holes 32 after the misalignment, and the fixing member 33 can enter the first fastening hole 32 from the second fastening hole 12, so that after the adjusting member 5 is increased or decreased, the fixed mounting seat 3 can still be fastened to the front lock body assembly 1 and the rear lock body assembly 2 through the fixing member 33.

[0048] In addition to the above-mentioned preferred embodiments, the present invention also has other implementation modes. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection requested by the present invention.

Claims

1. A length-adjustable lock core, comprising a front lock body assembly, a rear lock body assembly, and a lock core dial wheel disposed between the front lock body assembly and the rear lock body assembly, a fixed mounting seat is disposed between the front lock body assembly and the rear lock body assembly, and an adjusting member for adjusting the length of the lock core is disposed between the fixed mounting seat and the front lock body assembly and between the fixed mounting seat and the rear lock body assembly, characterized in that: There are multiple adjusting pieces distributed along the direction from the front lock body assembly to the rear lock body assembly. The adjusting pieces located on both sides of the lock cylinder dial wheel are symmetrically arranged and abut against the lock cylinder dial wheel. The adjusting piece located between the front lock body assembly and the lock cylinder dial wheel is plugged into the front lock body assembly or the adjusting piece adjacent thereto. The adjusting piece located between the rear lock body assembly and the lock cylinder dial wheel is plugged into the rear lock body assembly or the adjusting piece adjacent thereto.

2. The length-adjustable lock cylinder according to claim 1, characterized in that: The adjusting member is provided with a first through hole and a second through hole, the front lock body component or the rear lock body component is penetrated in the first through hole, and the fixed mounting seat is penetrated in the second through hole.

3. The length-adjustable lock cylinder according to claim 1, characterized in that: The front lock body assembly and the rear lock body assembly are both provided with plugging grooves, the adjusting member is provided with an auxiliary plugging groove, the adjusting member is provided with convex ribs, and the convex ribs are plugged into the plugging grooves or the auxiliary plugging grooves.

4. The length-adjustable lock cylinder according to claim 1, characterized in that: The front lock body assembly and the rear lock body assembly are both provided with mounting holes, the two sides of the fixed mounting seat are respectively inserted into the two mounting holes, and the fixed mounting seat and the front lock body assembly and the rear lock body assembly are fastened and connected by fixing parts.

5. The length-adjustable lock cylinder according to claim 1, characterized in that: The fixed mounting seat is provided with a first fastening hole, the front lock body assembly is provided with a second fastening hole coaxial with the first fastening hole, and the fixing piece is threadedly connected to the first fastening hole and inserted into the second fastening hole.

6. The length-adjustable lock cylinder according to claim 5, characterized in that: The first fastening holes, the second fastening holes and the adjusting members are distributed in a plurality along the direction of the front lock body assembly toward the lock cylinder dial. The plurality of first fastening holes correspond one to one with the plurality of second fastening holes and are coaxial. The number of adjusting members located on the same side of the lock cylinder dial is at least one less than the number of the first fastening holes.

7. The length-adjustable lock cylinder according to claim 6, characterized in that: The thickness of the adjusting member is the same as the distance between two adjacent first fastening holes.

8. The length-adjustable lock cylinder according to claim 1, characterized in that: A first step surface is provided on a side surface of the adjusting member facing the front lock body assembly, and the front lock body assembly abuts against the first step surface.

9. The length-adjustable lock cylinder according to claim 1, characterized in that: The lock core dial wheel is provided with a second step surface, and the adjusting member abuts against the second step surface.

10. The length-adjustable lock cylinder according to claim 1, characterized in that: The fixed mounting seat is provided with a third step surface, and the adjusting member abuts against the third step surface.

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