Lock cylinder and lock
By installing a reinforcing structure at the clearance slot of the lock cylinder, the problem of lock shell breakage was solved, and the security of the lock cylinder was improved.
Patent Information
- Application Number
- CN202520153742.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-22
AI Technical Summary
The existing lock cylinder is prone to breakage at the lever clearance groove, resulting in insufficient security.
A reinforcing structure is installed at the lever clearance groove of the lock case. The reinforcing structure is fixedly connected to the first and second parts of the lock case to enhance the structural strength of the lock case.
It significantly improves the structural strength of the lock case at the lever clearance groove, reduces the risk of breakage, and enhances the security of the lock cylinder.
Smart Images
Figure CN223838817U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to lock cylinders, and more particularly to a lock cylinder and lock. Background Technology
[0002] Some existing lock cylinders, including a lock case and a cylinder, have a mounting hole in the lock case, through which the cylinder rotates. The cylinder has a lever, and the lock case has a recessed groove for the lever. When the lock case is subjected to significant external force, it is prone to breakage at the recessed groove. Criminals can then disable the lock cylinder by removing the lock case, thus compromising its security. Utility Model Content
[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a lock cylinder that can reduce the risk of lock shell breakage at the lever clearance groove.
[0004] This utility model also proposes a lock having the above-mentioned lock cylinder.
[0005] According to a first aspect of the present invention, a lock cylinder includes a lock shell, a lock cylinder, and a reinforcing structure. The lock shell has a mounting hole and a lever clearance groove. The lock shell includes a first block, a connecting block, and a second block arranged along the axis of the mounting hole. The first block is connected to the second block via the connecting block. The first block, the connecting block, and the second block form the lever clearance groove, which is located between the first block and the second block. The lock shell also has a receiving groove that spans across the first block, the connecting block, and the second block. The lock cylinder is rotatably mounted on the lock shell and located in the mounting hole. The lock cylinder has a lever component located in the lever clearance groove. The reinforcing structure is mounted on the lock shell and located in the receiving groove. The reinforcing structure is fixedly connected to both the first block and the second block, and the strength of the reinforcing structure is greater than the strength of the lock shell.
[0006] According to the first aspect of the present invention, the lock cylinder has at least the following beneficial effects: when the lock shell is subjected to a large external force, since a reinforcing structure is installed in the receiving groove, the reinforcing structure is fixedly connected to the first block and the second block respectively, and the strength of the reinforcing structure is greater than the strength of the lock shell, the structural strength of the lock shell at the connecting block can be significantly improved by the reinforcing block, thereby reducing the risk of the lock shell breaking at the push block relief groove and improving the security of the lock cylinder.
[0007] According to some embodiments of the present invention, the first block portion is provided with a first insertion portion, the reinforcing structure is provided with a first mating portion, the first insertion portion and the first mating portion are inserted and mated, the second block portion is provided with a second insertion portion, the reinforcing structure is provided with a second mating portion, the second insertion portion and the second mating portion are inserted and mated.
[0008] According to some embodiments of the present invention, the first insertion part is a first through hole, the first mating part is a first insert block, one end of the first through hole extends through to the mounting hole, and the other end of the first through hole extends through to the receiving groove; the lock cylinder further includes an elastic element and a driving pin, the driving pin is slidably disposed in the first through hole, and the elastic element is disposed in the first through hole and can apply a force of the driving pin toward the lock cylinder.
[0009] According to some embodiments of the present invention, the first block is provided with at least two first through holes, the reinforcing structure is provided with at least two first inserts, the number of first through holes is not less than the number of first inserts, and each first insert is inserted into one of the first through holes.
[0010] According to some embodiments of the present invention, the second insertion part is a second through hole, the second mating part is a second insert block, one end of the second through hole extends through to the mounting hole, and the other end of the second through hole extends through to the receiving groove.
[0011] According to some embodiments of the present invention, the second block is provided with at least two second through holes, and the reinforcing structure is provided with at least two second inserts, each of which is inserted into one of the second through holes.
[0012] According to some embodiments of the present invention, the first insertion part is a first through hole, the second insertion part is a second through hole, both the first through hole and the second through hole are located on the bottom wall of the receiving groove, and the hole axis of the first through hole and the hole axis of the second through hole are both perpendicular to the bottom wall of the receiving groove.
[0013] According to some embodiments of the present invention, it further includes a first pin, wherein both the reinforcing structure and the first block are provided with a first pin hole, the axis of the first pin hole being perpendicular to the depth direction of the receiving groove, and the first pin is inserted into the two first pin holes; it also includes a second pin, wherein both the reinforcing structure and the second block are provided with a second pin hole, the axis of the second pin hole being perpendicular to the depth direction of the receiving groove, and the second pin is inserted into the two second pin holes.
[0014] According to some embodiments of the present invention, the receiving groove is strip-shaped and extends along the axial direction of the mounting hole, and the reinforcing structure includes two reinforcing plates, which are stacked side by side and connected together, with the length direction of the reinforcing plates arranged along the axial direction of the mounting hole.
[0015] The lock according to a second aspect of the present invention includes the lock cylinder described above.
[0016] According to the second aspect of the present invention, the lock has at least the following beneficial effects: due to the use of the above-mentioned lock cylinder, the lock can have higher security.
[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0019] Figure 1 This is a three-dimensional schematic diagram of the lock cylinder according to an embodiment of the present utility model;
[0020] Figure 2 This is an exploded view of a portion of the lock cylinder structure according to an embodiment of the present utility model;
[0021] Figure 3 This is a cross-sectional schematic diagram of the lock cylinder according to an embodiment of the present utility model.
[0022] Figure label:
[0023] Lock housing 100, mounting hole 101, lever clearance groove 102, receiving groove 103, first block 110, first through hole 111, connecting block 120, second block 130, second through hole 131;
[0024] Lock cylinder 200, lever 210;
[0025] The reinforcing structure 300 includes a first insert block 310, a second insert block 320, and a reinforcing plate 330.
[0026] Elastic element 400;
[0027] Drive pin 500;
[0028] First pin 610, second pin 620. Detailed Implementation
[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0030] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0031] In the description of this utility model, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features or their sequential relationship.
[0032] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0033] The lock case 100 of a lock cylinder is usually made of copper alloy or zinc alloy, which has the advantages of good machinability and resistance to oxidation by air. However, the structural strength of such lock cases 100 is usually insufficient.
[0034] Reference Figures 1 to 3This embodiment of the lock cylinder includes a lock shell 100, a lock cylinder 200, and a reinforcing structure 300. The lock shell 100 is provided with a mounting hole 101 and a lever clearance groove 102. The lock shell 100 includes a first block 110, a connecting block 120, and a second block 130 arranged along the axial direction of the mounting hole 101. The first block 110 is connected to the second block 130 via the connecting block 120. The first block 110, the connecting block 120, and the second block 130 form the lever clearance groove 102, which is located between the first block 110 and the second block 130. The lock shell 100 is provided with a receiving... The groove 103 is spanning the first block 110, the connecting block 120, and the second block 130; the lock cylinder 200 is rotatably mounted on the lock shell 100 and located in the mounting hole 101, and the lock cylinder 200 is provided with a lever 210, which is located in the lever clearance groove 102; the reinforcing structure 300 is provided on the lock shell 100 and located in the groove 103, and the reinforcing structure 300 is fixedly connected to the first block 110 and the second block 130 respectively, and the strength of the reinforcing structure 300 is greater than the strength of the lock shell 100.
[0035] When the lock housing 100 is subjected to a large external force, the reinforcing structure 300 is installed in the receiving groove 103. The reinforcing structure 300 is fixedly connected to the first block 110 and the second block 130 respectively, and the strength of the reinforcing structure 300 is greater than the strength of the lock housing 100. The reinforcing block can significantly improve the structural strength of the lock housing 100 at the connecting block 120, thereby reducing the risk of the lock housing 100 breaking at the push block relief groove 102 and improving the security of the lock cylinder.
[0036] Furthermore, when the lock housing 100 is subjected to a large external force and breaks at the lever relief groove 102, that is, when the lock housing 100 breaks at the connecting block portion 120, the lock housing 100 can still maintain the relative position of the first block portion 110 and the second block portion 130 through the reinforcing structure 300, making the first block portion 110 and the second block portion 130 difficult to remove, and also improving the security of the lock cylinder.
[0037] In this embodiment, the first block 110 is provided with a first insertion portion, and the reinforcing structure 300 is provided with a first mating portion. The first insertion portion and the first mating portion are inserted into each other. The second block 130 is provided with a second insertion portion, and the reinforcing structure 300 is provided with a second mating portion. The second insertion portion and the second mating portion are inserted into each other. The insertion of the first mating portion into the first insertion portion of the first block 110 improves the connection strength between the reinforcing structure 300 and the first block 110. The insertion of the second mating portion into the second insertion portion of the second block 130 improves the connection strength between the reinforcing structure 300 and the second block 130. The combination of these two components allows the lock housing 100 to be better subjected to external forces, which can be transmitted to the reinforcing structure 300, reducing the risk of the lock housing 100 breaking.
[0038] In this embodiment, the first insertion part is a first through hole 111, the first mating part is a first insert block 310, one end of the first through hole 111 extends to the mounting hole 101, and the other end of the first through hole 111 extends to the receiving groove 103; the lock cylinder also includes an elastic element 400 and a driving pin 500, the driving pin 500 is slidably disposed in the first through hole 111, and the elastic element 400 is disposed in the first through hole 111 and can apply a force to the driving pin 500 toward the lock cylinder 200.
[0039] Since the lock cylinder housing 100 typically houses the elastic element 400 and the drive pin 500, when the key is inserted into the lock cylinder 200, the drive pin 500 can slide through the anti-rotation pin to unlock the lock. The reinforcing structure 300 is inserted into the first through hole 111 via the first insert 310, and the first through hole is used for both the drive pin 500 and the elastic element 400, thus eliminating the need for two separate holes for different purposes, simplifying the lock cylinder structure and reducing manufacturing costs.
[0040] In one embodiment, the first block 110 is provided with six first through holes 111, and the reinforcing structure 300 is provided with two first inserts 310. The number of first through holes 111 is not less than the number of first inserts 310, and each first insert 310 is inserted into one first through hole 111. By providing a plurality of first inserts 310, which are inserted into different first through holes 111, the connection strength between the reinforcing structure 300 and the first block 110 is further improved. It is conceivable that in other embodiments, the reinforcing structure 300 may also be provided with one, three, four or more first inserts 310, and the first block 110 may also be provided with one, two, three or more first through holes 111, with the number of first through holes 111 not less than the number of first inserts 310, and each first insert 310 being inserted into a different first through hole 111. Those skilled in the art can choose according to actual needs.
[0041] Specifically, all the first through holes 111 are arranged at intervals along the axis of the mounting hole 101, and each first through hole 111 is equipped with an elastic element 400 and a drive pin 500.
[0042] Specifically, the elastic element 400 is a spring. It can be understood that the elastic element 400 can also be a torsion spring or a sheet spring, etc.
[0043] It is conceivable that in other embodiments, the first insertion part may also be the first insertion block 310, and the first mating part may also be the first through hole 111, without limitation here.
[0044] In this embodiment, the second block 130 is provided with two second through holes 131, and the reinforcing structure 300 is provided with two second inserts 320, each second insert 320 being inserted into one of the second through holes 131. By using two second inserts 320 inserted into different second through holes 131, the reinforcing structure 300 can further improve the connection strength between itself and the first block 110. It is conceivable that in other embodiments, the reinforcing structure 300 may also be provided with one, three, four, or more second through holes 131, and the reinforcing structure 300 may also be provided with one, three, four, or more second inserts 320, with the number of second through holes 131 not less than the number of second inserts 320. Those skilled in the art can choose according to actual needs.
[0045] In the embodiment, the first through hole 111 and the second through hole 131 are both located on the bottom wall of the receiving groove 103, and the hole axis of the first through hole 111 and the hole axis of the second through hole 131 are both perpendicular to the bottom wall of the receiving groove 103. The aforementioned first through hole 111 and second through hole 131 allow the first insert 310 to be inserted into the first through hole 111 and the second insert 320 to be inserted into the second through hole 131 simultaneously during the installation and insertion of the reinforcing structure 300 into the receiving groove 103, simplifying the structure and assembly process of the lock cylinder. Furthermore, both the first through hole 111 and the second through hole 131 are perpendicular to the bottom wall of the receiving groove 103. When the lock shell 100 is subjected to an external force along the axis of the mounting hole 101, the force at the lock shell 100 can be better transmitted to the reinforcing structure 300, thereby reducing the risk of the lock shell 100 breaking. Even if the lock shell 100 breaks, the reinforcing structure 300 can still better fix the relative positions of the first block 110 and the second block 130 through the first insert 310 and the second insert 320.
[0046] It is conceivable that the first and second plug-in portions could also be located at other positions in the receiving groove 103, and those skilled in the art could choose according to actual needs.
[0047] In this embodiment, a first pin 610 is also included. Both the reinforcing structure 300 and the first block 110 are provided with first pin holes, the axis of which is perpendicular to the depth direction of the receiving groove 103. The first pin 610 is inserted into two first pin holes. A second pin 620 is also included. Both the reinforcing structure 300 and the second block 130 are provided with second pin holes, the axis of which is perpendicular to the depth direction of the receiving groove 103. The second pin 620 is inserted into two second pin holes. The reinforcing structure 300 is fixedly connected to the first block 110 via the first pin 610, and the reinforcing structure 300 is fixedly connected to the second block 130 via the second pin 620. The connection method is relatively simple and has high connection strength. It is conceivable that in other embodiments, the reinforcing structure 300 may also be fixedly connected to the first block 110 and the second block 130 by screw fastening; or by a combination of multiple fixing methods.
[0048] In this embodiment, the receiving groove 103 is strip-shaped and extends along the axis of the mounting hole 101. The reinforcing structure 300 includes two reinforcing pieces 330, which are stacked side-by-side and connected together. The length direction of the reinforcing pieces 330 is along the axis of the mounting hole 101. The reinforcing structure 300 is formed by stacking and connecting two reinforcing pieces 330, which makes the structural strength of the reinforcing structure 300 relatively high and facilitates the use of common materials to manufacture the reinforcing structure 300.
[0049] Specifically, in this embodiment, the lock housing 100 is made of copper alloy or zinc alloy, and the reinforcing structure 300 is made of stainless steel, where the strength of stainless steel is greater than that of copper alloy or zinc alloy. It is conceivable that in other embodiments, the lock housing 100 and the reinforcing structure 300 may also be made of other materials, provided that the strength of the reinforcing structure 300 is greater than that of the lock housing 100.
[0050] This utility model also discloses a lock that uses the aforementioned lock cylinder. Due to the use of the aforementioned lock cylinder, the lock can have higher security.
[0051] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above 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 one or more embodiments or examples.
[0052] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A lock cylinder, characterized in that, include: A lock housing (100) is provided with a mounting hole (101) and a lever clearance groove (102). The lock housing (100) includes a first block (110), a connecting block (120), and a second block (130) arranged along the hole axis of the mounting hole (101). The first block (110) is connected to the second block (130) through the connecting block (120). The first block (110), the connecting block (120), and the second block (130) form the lever clearance groove (102). The lever clearance groove (102) is located between the first block (110) and the second block (130). The lock housing (100) is provided with a receiving groove (103), which spans the first block (110), the connecting block (120), and the second block (130). A lock cylinder (200) is rotatably mounted on the lock housing (100) and located in the mounting hole (101). The lock cylinder (200) is provided with a lever (210), which is located in the lever clearance groove (102). A reinforcing structure (300) is disposed on the lock housing (100) and located in the receiving groove (103). The reinforcing structure (300) is fixedly connected to the first block (110) and the second block (130) respectively. The strength of the reinforcing structure (300) is greater than the strength of the lock housing (100).
2. The lock cylinder according to claim 1, characterized in that: The first block (110) is provided with a first insertion part, and the reinforcing structure (300) is provided with a first mating part. The first insertion part and the first mating part are inserted and mated. The second block (130) is provided with a second insertion part, and the reinforcing structure (300) is provided with a second mating part. The second insertion part and the second mating part are inserted and mated.
3. The lock cylinder according to claim 2, characterized in that: The first insertion part is a first through hole (111), the first mating part is a first insert (310), one end of the first through hole (111) extends through to the mounting hole (101), and the other end of the first through hole (111) extends through to the receiving groove (103); the lock cylinder also includes an elastic element (400) and a driving pin (500), the driving pin (500) is slidably disposed in the first through hole (111), and the elastic element (400) is disposed in the first through hole (111) and can apply a force to the driving pin (500) toward the lock cylinder (200).
4. The lock cylinder according to claim 3, characterized in that: The first block (110) is provided with at least two first through holes (111), and the reinforcing structure (300) is provided with at least two first inserts (310). The number of first through holes (111) is not less than the number of first inserts (310), and each first insert (310) is inserted into one first through hole (111).
5. The lock cylinder according to claim 2, characterized in that: The second insertion part is a second through hole (131), the second mating part is a second insert (320), one end of the second through hole (131) extends through to the mounting hole (101), and the other end of the second through hole (131) extends through to the receiving groove (103).
6. The lock cylinder according to claim 5, characterized in that: The second block (130) is provided with at least two second through holes (131), and the reinforcing structure (300) is provided with at least two second inserts (320), each second insert (320) being inserted into one of the second through holes (131).
7. The lock cylinder according to claim 2, characterized in that: The first insertion part is a first through hole (111), and the second insertion part is a second through hole (131). The first through hole (111) and the second through hole (131) are both located on the bottom wall of the receiving groove (103). The hole axis of the first through hole (111) and the hole axis of the second through hole (131) are both perpendicular to the bottom wall of the receiving groove (103).
8. The lock cylinder according to claim 1, characterized in that: It also includes a first pin (610), wherein the reinforcing structure (300) and the first block (110) are both provided with a first pin hole, the axis of the first pin hole is perpendicular to the depth direction of the receiving groove (103), and the first pin (610) is inserted into the two first pin holes; it also includes a second pin (620), wherein the reinforcing structure (300) and the second block (130) are both provided with a second pin hole, the axis of the second pin hole is perpendicular to the depth direction of the receiving groove (103), and the second pin (620) is inserted into the two second pin holes.
9. The lock cylinder according to claim 1, characterized in that: The receiving groove (103) is strip-shaped and extends along the hole axis of the mounting hole (101). The reinforcing structure (300) includes two reinforcing pieces (330), which are stacked side by side and connected together. The length direction of the reinforcing pieces (330) is arranged along the hole axis of the mounting hole (101).
10. A lock, characterized in that, Includes the lock cylinder as described in any one of claims 1 to 9.