Lock cylinder with adjustable length

Abstract

The utility model discloses a length-adjustable lock cylinder, and relates to the technical field of lock cylinders. The ball lock comprises a lock shell, a transmission piece, a dial wheel, two lock liners, a connecting rod and a group of lengthening mechanisms, the lock shell comprises a group of end shells which are symmetrically arranged, the lock liners are rotationally arranged in the end shells, ball containing edges are arranged on the peripheral side faces of the end shells, and a plurality of ball mechanisms are arranged between the ball containing edges and the lock liners. A connecting rod groove parallel to the marble mechanism is formed in the inner end side of the marble containing edge, and an outer sleeve is arranged on the marble containing edge. By designing the novel lock cylinder mechanism, the extension mechanisms are not assembled when lengthening is not needed, the use requirement of a standard lock cylinder is met, the extension mechanisms can be rapidly assembled when lengthening is needed, operation is facilitated, the extension mechanisms with different lengths can be selected according to use requirements, meanwhile, the lengths of the two extension mechanisms can be adaptively adjusted, and the lock cylinder is convenient to use. The application range is wide, and the cost of the lock cylinder can be greatly reduced.

Description

Technical Field

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

[0002] Most existing lock cores are of fixed length. However, for application points with different thicknesses, existing lock cores will not be able to adapt and require lock cores of special specifications to be used. However, there are relatively few such application points. If a new production line is set up separately, the cost will be too high. Therefore, designing a lock core with adjustable length is a problem that needs to be solved by people in this field. Summary of the Invention

[0003] The purpose of the present utility model is to provide a length-adjustable lock core. By designing a new lock core mechanism, when no lengthening is needed, the extension mechanism does not need to be assembled, which meets the use of the standard lock core. When lengthening is needed, the extension mechanism can be quickly assembled, which is convenient for operation, and different lengths of extension mechanisms can be selected according to usage requirements. At the same time, the lengths of the two extension mechanisms can be adaptively adjusted, which has a wide range of applications and can greatly reduce the cost of the lock core.

[0004] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0005] The utility model is a length-adjustable lock core, comprising a lock housing, a transmission part, a dial wheel, two lock cores, a connecting rod and a set of lengthening mechanisms;

[0006] The lock housing comprises a set of symmetrically arranged end shells, wherein the lock core is rotatably arranged in the end shells, and the circumferential side surfaces of the end shells are provided with beaded edges, and a plurality of pin mechanisms are provided between the beaded edges and the lock core;

[0007] The inner end side of the beading edge is provided with a connecting rod groove parallel to the pin mechanism, the beading edge is provided with an outer sleeve, the outer sleeve is located outside the connecting rod groove, and the inner end surface of the beading edge is provided with a lengthening opening;

[0008] The extension mechanism includes an extension shell, a core sleeve and a core rod;

[0009] An inner sleeve is provided on the peripheral side of the extension shell, and a first T-shaped opening is provided on the inner sleeve. The extension shell is fixed to the end shell through the extension screw, the first T-shaped opening and the extension opening;

[0010] The core sleeve is rotatably arranged in the extension shell, the two ends of the core sleeve are respectively connected to the lock core and the dial key, the core rod is slidably arranged in the core sleeve, and the inner end of the core rod is in contact with the end of the transmission member;

[0011] The two ends of the connecting rod are respectively arranged in the outer sleeves of the two end shells. A group of second T-shaped openings are provided on the connecting rod. The ends of the connecting rod are fixed to the end shells through the second T-shaped openings, fastening screws and connecting rod grooves.

[0012] Furthermore, the inner end surface of the lock core is provided with a group of first keyways, the outer end surface of the core sleeve is provided with a first convex key that cooperates with the first keyway, the transmission part is provided with a second convex key that cooperates with the first keyway, and the inner end surface of the core sleeve is provided with a second keyway that cooperates with the second convex key.

[0013] Furthermore, the thumbwheel is arranged between the two extended shells, and the thumbwheel is provided with a third keyway matched with the second convex key.

[0014] Furthermore, the connecting rod is provided with a yield point opposite to the position of the dial wheel, and the connecting rod is provided with a lock housing installation opening opposite to the yield point.

[0015] Furthermore, an axial center opening is provided at the axial center of the inner end surface of the lock core, and the core rod and the transmission member are both clearance-fitted with the axial center opening and concentric.

[0016] Furthermore, an outer pin hole is provided at the connection between the outer sleeve and the beaded edge, inner pin openings are provided on the circumferential side surfaces at both ends of the connecting rod, and a reinforcing pin is provided between the inner pin opening and the outer pin hole.

[0017] Furthermore, an outer arc-shaped opening cooperating with the connecting rod is provided on the beaded edge away from the outer sleeve, and an inner arc-shaped opening cooperating with the connecting rod is provided on the outer side of the inner sleeve.

[0018] The utility model has the following beneficial effects:

[0019] 1. The utility model designs a new lock core mechanism, which does not require the assembly of the extension mechanism when extension is not needed, and meets the use of the standard lock core. When extension is needed, the extension mechanism can be quickly assembled, which is convenient for operation, and different lengths of extension mechanisms can be selected according to usage requirements. At the same time, the lengths of the two extension mechanisms can be adaptively adjusted, which has a wide range of applications and can greatly reduce the cost of the lock core.

[0020] 2. The utility model can fit closely to the connecting rod through the design of the inner arc-shaped opening and the outer arc-shaped opening, thereby improving the overall stability and strength of the lock core. At the same time, through the arrangement of the reinforcement pin, it can not only be used for positioning during assembly, but also play a role in reinforcement and anti-twisting, further improving the strength and stability of the lock core.

[0021] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 This is a schematic structural diagram of a length-adjustable lock cylinder of the present invention;

[0024] Figure 2 This is an exploded view of the structure of a single end shell, an extension mechanism, a connecting rod and a thumbwheel of the utility model;

[0025] Figure 3 It is a structural diagram of the end of the extended shell;

[0026] Figure 4 This is a schematic diagram of the structure of the utility model when it is not lengthened;

[0027] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0028] 1-lock housing, 2-transmission part, 3-dial wheel, 4-lock core, 5-connecting rod, 6-extension mechanism, 7-pin mechanism, 8-reinforcement pin, 101-end housing, 102-beaded edge, 103-extension rod groove, 104-outer sleeve, 105-outer pin hole, 106-extension mouth, 107-outer arc mouth, 201-second convex key, 301-third keyway, 401-first keyway, 402-axis mouth, 501-inner pin mouth, 502-second T-shaped mouth, 503-fastening screw, 504-yield point, 505-lock housing installation mouth, 601-extension housing, 602-core sleeve, 603-core rod, 604-extension screw, 605-inner sleeve, 606-first T-shaped mouth, 607-first convex key, 608-second keyway, 609-inner arc mouth. DETAILED DESCRIPTION

[0029] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1-4 As shown, the utility model is a length-adjustable lock cylinder, comprising a lock housing 1, a transmission member 2, a dial wheel 3, two lock cylinders 4, a connecting rod 5 and a set of lengthening mechanisms 6;

[0031] The lock housing 1 comprises a set of symmetrically arranged end shells 101, in which the lock core 4 is rotatably arranged. The end shells 101 are provided with beaded edges 102 on the side surfaces thereof, and a plurality of pin mechanisms 7 are provided between the beaded edges 102 and the lock core 4.

[0032] The inner end of the beading edge 102 is provided with a connecting rod groove 103 parallel to the pin mechanism 7, and the beading edge 102 is provided with an outer sleeve 104, which is located outside the connecting rod groove 103. The inner end surface of the beading edge 102 is provided with an extension opening 106;

[0033] The extension mechanism 6 includes an extension shell 601, a core sleeve 602 and a core rod 603;

[0034] An inner sleeve 605 is provided on the side surface of the extension shell 601, and a first T-shaped opening 606 is provided on the inner sleeve 605. The extension shell 601 is fixed to the end shell 101 through the extension screw 604, the first T-shaped opening 606 and the extension opening 106;

[0035] The core sleeve 602 is rotatably arranged in the extension shell 601. The two ends of the core sleeve 602 are respectively connected to the lock core 4 and the dial wheel 3. The core rod 603 is slidably arranged in the core sleeve 602. The inner end of the core rod 603 contacts the end of the transmission member 2.

[0036] The two ends of the connecting rod 5 are respectively set in the outer sleeve 104 of the two end shells 101 with gaps. A group of second T-shaped openings 502 are provided on the connecting rod 5. The ends of the connecting rod 5 are fixed to the end shells 101 through the second T-shaped openings 502, fastening screws 503 and connecting rod grooves 103.

[0037] Among them Figure 1-2 and Figure 4 As shown, the inner end surface of the lock core 4 is provided with a group of first key grooves 401, the outer end surface of the core sleeve 602 is provided with a first convex key 607 that cooperates with the first key groove 401, the transmission part 2 is provided with a second convex key 201 that cooperates with the first key groove 401, and the inner end surface of the core sleeve 602 is provided with a second key groove 608 that cooperates with the second convex key 201.

[0038] Among them Figure 1-2 and Figure 4 As shown, the thumbwheel 3 is disposed between the two extended shells 601 , and a third keyway 301 is provided on the thumbwheel 3 to cooperate with the second convex key 201 .

[0039] Among them Figure 1-2 and Figure 4 As shown, the connecting rod 5 is provided with a yield point 504 opposite to the thumb wheel 3 , and the connecting rod 5 is provided with a lock housing installation opening 505 opposite to the yield point 504 .

[0040] Among them Figure 1-2 and Figure 4As shown, an axial center opening 402 is provided at the axial center of the inner end surface of the lock core 4, and the core rod 603 and the transmission member 2 are both clearance-fitted with the axial center opening 402 and are concentric.

[0041] Among them Figure 1-2 and Figure 4 As shown, an outer pin hole 105 is provided at the connection between the outer sleeve 104 and the beaded edge 102, and inner pin openings 501 are provided on the side surfaces at both ends of the connecting rod 5, and a reinforcing pin 8 is provided between the inner pin opening 501 and the outer pin hole 105.

[0042] Among them Figure 1-2 and Figure 4 As shown, the beaded edge 102 is provided with an outer arc-shaped opening 107 cooperating with the connecting rod 5 at a position away from the outer sleeve 104 , and the outer side of the inner sleeve 605 is provided with an inner arc-shaped opening 609 cooperating with the connecting rod 5 .

[0043] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0044] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A length-adjustable lock core, comprising a lock housing (1), a transmission member (2), a dial wheel (3) and two lock cores (4), characterized in that: It also includes a connecting rod (5) and a set of extension mechanisms (6); The lock housing (1) comprises a group of symmetrically arranged end housings (101), the lock core (4) is rotatably arranged in the end housings (101), the side surfaces of the end housings (101) are provided with beaded edges (102), and a plurality of pin mechanisms (7) are provided between the beaded edges (102) and the lock core (4); The inner end side of the beading edge (102) is provided with a connecting rod groove (103) parallel to the pin mechanism (7); the beading edge (102) is provided with an outer sleeve (104), the outer sleeve (104) is located outside the connecting rod groove (103); the inner end surface of the beading edge (102) is provided with a connecting opening (106); The extension mechanism (6) comprises an extension shell (601), a core sleeve (602) and a core rod (603); An inner sleeve (605) is provided on the circumferential side of the extension shell (601), and a first T-shaped opening (606) is provided on the inner sleeve (605). The extension shell (601) is fixed to the end shell (101) via an extension screw (604), the first T-shaped opening (606) and the extension opening (106); The core sleeve (602) is rotatably arranged in the extension shell (601), and the two ends of the core sleeve (602) are respectively connected to the lock core (4) and the dial wheel (3). The core rod (603) is slidably arranged in the core sleeve (602), and the inner end of the core rod (603) contacts the end of the transmission member (2); The two ends of the connecting rod (5) are respectively arranged in the outer sleeves (104) of the two end shells (101) with gaps therebetween. A set of second T-shaped openings (502) is provided on the connecting rod (5). The ends of the connecting rod (5) are fixed to the end shells (101) via the second T-shaped openings (502), the fastening screws (503) and the connecting rod slots (103).

2. A length-adjustable lock cylinder according to claim 1, characterized in that: The inner end surface of the lock core (4) is provided with a group of first key grooves (401), the outer end surface of the core sleeve (602) is provided with a first convex key (607) that cooperates with the first key groove (401), the transmission member (2) is provided with a second convex key (201) that cooperates with the first key groove (401), and the inner end surface of the core sleeve (602) is provided with a second key groove (608) that cooperates with the second convex key (201).

3. The length-adjustable lock cylinder according to claim 2, characterized in that: The thumbwheel (3) is arranged between the two extended shells (601), and a third keyway (301) is provided on the thumbwheel (3) for cooperating with the second convex key (201).

4. The length-adjustable lock cylinder according to claim 1, characterized in that: The connecting rod (5) is provided with a yielding point (504) opposite to the position of the dial wheel (3), and the connecting rod (5) is provided with a lock housing installation opening (505) opposite to the yielding point (504).

5. The length-adjustable lock cylinder according to claim 1, characterized in that: An axial center opening (402) is provided at the axial center of the inner end surface of the lock core (4), and the core rod (603) and the transmission member (2) are both clearance-matched and concentric with the axial center opening (402).

6. The length-adjustable lock cylinder according to claim 1, characterized in that: An outer pin hole (105) is provided at the connection between the outer sleeve (104) and the beaded edge (102), and inner pin openings (501) are provided on the circumferential side surfaces at both ends of the connecting rod (5). A reinforcing pin (8) is provided between the inner pin opening (501) and the outer pin hole (105).

7. The length-adjustable lock cylinder according to claim 1, characterized in that: An outer arc-shaped opening (107) cooperating with the connecting rod (5) is provided on the beaded edge (102) at a position away from the outer sleeve (104), and an inner arc-shaped opening (609) cooperating with the connecting rod (5) is provided on the outer side of the inner sleeve (605).

Images