Sectional type lock cylinder and lock

Abstract

The utility model provides a sectional type lock cylinder and lockset, including the front section lock cylinder and the rear section lock cylinder, the outer wall of front section lock cylinder and the rear section lock cylinder is rotatingly connected with the lock cover, the outer wall of the lock cover is provided with two groups of through holes, the inner wall of the through hole is fixed with the fixed cap, the outer wall of the fixed cap is fixed with the second spring, and the outer wall of the second spring is provided with the clamping rod. The clamping rod is slidably connected into a through hole in the outer wall of the lock cover, an inner mounting ring groove is formed in the inner wall of the lock cover, a plurality of guide pieces are fixed to the outer wall of the front-section lock cylinder, a guide groove is formed in the outer wall of the rear-section lock cylinder, the guide pieces are rotatably connected to the outer wall of the guide groove, and torsional springs are fixed to the guide pieces and the inner wall of the inner mounting ring groove. A plurality of first concave holes are respectively formed in the outer walls of the front-section lock cylinder and the rear-section lock cylinder; the front-section lock cylinder can be reset after a key is pulled out, meanwhile, the front-section lock cylinder can be stably connected to the interior of the lock cover through the elastic force applied to the front-section lock cylinder by the torsional spring, the stability of the front-section lock cylinder is improved, and the service life of the lock cylinder is prolonged.

Description

Technical Field

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

[0002] The lock core is the control component of the lock. In order to improve the anti-theft performance of the lock, current locks usually use a segmented lock core to improve the overall anti-theft performance of the lock. The segmented lock can prevent criminals from detecting the changes in the rear lock beads, thereby preventing criminals from quickly picking the lock, thereby improving the anti-theft effect of the lock.

[0003] After searching, the Chinese patent application number CN200420105568.1 discloses a segmented anti-theft lock core, including a lock sleeve, a cylindrical lock core installed in the lock sleeve, a lock cover located at the front end of the lock core and sleeved on the lock sleeve, a shift fork connected to the rear end of the lock core, and a lock ball assembly installed in several matching pin holes of the lock core and the lock sleeve. However, since the above technical solution does not have a corresponding mechanism that can enable the front section of the lock core to quickly and automatically rotate back to its original position after being rotated to unlock, there is still a problem that the overall connection of the front section of the lock core is relatively loose and easily dislocated after multiple rotations, resulting in a short service life of the lock core and the lock. Utility Model Content

[0004] In view of this, the embodiments of the present invention hope to provide a segmented lock core and lock to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial option.

[0005] The technical solution of the embodiment of the present utility model is achieved as follows: a segmented lock core, comprising a front lock core and a rear lock core, the outer walls of the front lock core and the rear lock core are rotatably connected to a lock cover, the outer wall of the lock cover is provided with two groups of through holes, the inner walls of the through holes are fixed with a fixing cap, the outer wall of the fixing cap is fixed with a second spring, the outer wall of the second spring is provided with a clamping rod, the clamping rod is slidably connected to the through hole in the outer wall of the lock cover, the inner wall of the lock cover is provided with an inner mounting ring groove, a plurality of guide plates are fixed to the outer wall of the front lock core, a guide groove is provided on the outer wall of the rear lock core, the guide plates are rotatably connected to the outer wall of the guide groove, and a torsion spring is fixed to the guide plate and the inner wall of the inner mounting ring groove.

[0006] In some embodiments, the outer walls of the front lock core and the rear lock core are respectively provided with a plurality of first recessed holes, the inner walls of the first recessed holes are connected to lock beads via springs, and the locking rods are inserted into the inner walls of the first recessed holes.

[0007] In some embodiments, a key guide block is inserted into the inner wall of the front lock cylinder.

[0008] In some embodiments, a limit block is fixed on the outer wall of the guide piece, and a limit stop is fixed on the inner wall of the inner mounting ring groove.

[0009] The lock comprises a shell, the key guide block is rotatably connected to an inner wall of one side of the shell, the outer wall of one side of the shell is rotatably connected to a rotating block, the outer wall of one side of the rotating block is fixed to an outer wall of one side of the rear lock core, the outer wall of one side of the shell is slidably connected to a lock tongue, the outer wall of the lock tongue is fixed with a first push block, and the outer wall of the rotating block is fixed with a second push block.

[0010] In some embodiments, a group of support blocks are fixed to the outer wall of one side of the shell, a guide rail is fixed to the outer wall of the lock tongue, and the support blocks are slidably connected to the outer wall of the guide rail.

[0011] In some embodiments, a first fixing plate is fixed to the outer wall of the lock tongue, a first spring is fixed to the outer wall on one side of the first fixing plate, a second fixing plate is fixed to the outer wall on the one side of the first spring, and the second fixing plate is fixed to the outer wall of the lock tongue.

[0012] The embodiment of the present invention has the following advantages due to the adoption of the above technical solution:

[0013] After the user pulls out the key, the front lock core as a whole will rotate back to a corresponding angle under the reset elastic force of the torsion spring on the inner wall of the inner ring groove, so that the front lock core can be reset after the key is pulled out. At the same time, the elastic force given to the front lock core by the torsion spring allows the front lock core to be stably connected to the inside of the lock cover, thereby improving the stability of the front lock core and increasing the service life of the lock core.

[0014] The limit block on one side of the guide plate will press against one side of the limit block under the elastic force of the torsion spring, thereby limiting the entire front lock cylinder, so that the front lock cylinder can rotate to the initial angle every time it is reset under the elastic force of the torsion spring.

[0015] When the user pulls out the key, the lock tongue will move outward and reset under the elastic force of the first spring, so that the lock is locked again. At the same time, the lock tongue moving back will push the second push block to reset through the first push block on the outer wall, thereby driving the rear lock cylinder to rotate back to its original angle through the first push block, so that both the front lock cylinder and the rear lock cylinder can be reset smoothly after the key is pulled out, thereby improving the overall stability and service life of the lock.

[0016] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the main structure of the segmented lock core proposed in the utility model.

[0019] Figure 2 This is a schematic diagram of the exploded structure of the segmented lock core proposed in the present invention.

[0020] Figure 3 This is a schematic diagram of the lock cover structure of the segmented lock cylinder proposed in the present invention.

[0021] Figure 4 This is a structural schematic diagram of the front and rear sections of the segmented lock cylinder proposed in the present invention.

[0022] Figure 5 This is a schematic diagram of the main structure of the lock proposed by the utility model.

[0023] Figure 6 This is a side structural schematic diagram of the lock proposed by the utility model.

[0024] Reference numerals:

[0025] 1-housing, 2-key guide block, 3-guide rail, 4-lock tongue, 5-support block, 6-first push block, 7-second push block, 8-rotating block, 9-first fixing plate, 10-first spring, 11-second fixing plate, 12-front lock cylinder, 13-lock cover, 14-fixing cap, 15-guide plate, 16-torsion spring, 17-limit block, 18-rear lock cylinder, 19-first concave hole, 20-inner mounting ring groove, 21-second spring, 22-clamp rod, 23-limit block, 24-lock bead, 25-guide groove. DETAILED DESCRIPTION

[0026] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0027] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0028] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. Example 1:

[0029] Segmented lock cylinder, such as Figure 1-4 As shown, it includes a front lock core 12 and a rear lock core 18, the outer walls of the front lock core 12 and the rear lock core 18 are rotatably connected to the lock cover 13, the outer wall of the lock cover 13 is provided with two groups of through holes, the inner walls of the through holes are fixed with a fixing cap 14, the outer wall of the fixing cap 14 is fixed with a second spring 21, the outer wall of the second spring 21 is provided with a clamping rod 22, the clamping rod 22 is slidably connected to the through hole on the outer wall of the lock cover 13, the inner wall of the lock cover 13 is provided with an inner mounting ring groove 20, a plurality of guide plates 15 are fixed to the outer wall of the front lock core 12, a guide groove 28 is provided on the outer wall of the rear lock core 18, the guide plates 15 are rotatably connected to the outer wall of the guide groove 28, and a torsion spring 16 is fixed to the inner wall of the guide plate 15 and the inner wall of the inner mounting ring groove 20.

[0030] The outer walls of the front lock core 12 and the rear lock core 18 are respectively provided with a plurality of first recessed holes 19 , the inner walls of the first recessed holes 19 are connected to lock beads 24 via springs, and the latch rods 22 are inserted into the inner walls of the first recessed holes 19 .

[0031] The key is first inserted into the front lock cylinder 12, and the lock ball 24 connected to the inner wall of the front lock cylinder 12 is pushed upward. After the lock ball 24 is pushed upward, the card rod 22 inserted in the first concave hole 19 on the outer wall of the front lock cylinder 12 is pushed out, thereby releasing the limit of the card rod 22 on the front lock cylinder 12. Then the user turns the key to drive the front lock cylinder 12 to rotate forward at a corresponding angle on the inner wall of the lock cover 13, so that the key inserted into the front lock cylinder 12 is aligned with the keyhole on one side of the rear lock cylinder 18, and then continues to insert the key forward into the interior of the rear lock cylinder 18, and inserts the key inserted in the outer wall of the rear lock cylinder 18. After the corresponding latch rod 22 in the first recessed hole 19 is pushed out, the key can be continuously turned, thereby driving the lock cylinder to rotate the corresponding angle to open the lock. Then the user pulls out the key. At this time, the front lock cylinder 12 as a whole will rotate back to the corresponding angle under the reset elastic force of the torsion spring 16 on the inner wall of the inner mounting ring groove 20, so that the front lock cylinder 12 can be reset after the key is pulled out. At the same time, the elastic force given to the front lock cylinder 12 by the torsion spring 16 allows the front lock cylinder 12 to be stably connected to the inside of the lock cover 13, thereby improving the stability of the front lock cylinder 12 and increasing the service life of the lock cylinder.

[0032] like Figure 1-2 As shown, a key guide block 2 is inserted into the inner wall of the front lock core 12; the key guide block 2 can guide the key inserted into the front lock core 12, thereby improving the stability of the front lock core 12 when the key drives the front lock core 12 to rotate.

[0033] like Figure 2-3 As shown, the outer wall of the guide piece 15 is fixed with a limit block 17, and the inner wall of the internal mounting ring groove 20 is fixed with a limit block 23; the limit block 17 on one side of the guide piece 15 will press against one side of the limit block 23 under the elastic force of the torsion spring 16, thereby limiting the entire front lock cylinder 12, so that the front lock cylinder 12 can be rotated to the initial angle each time it is reset under the elastic force of the torsion spring 16.

[0034] In this embodiment, the key is first inserted into the front lock cylinder 12, and the lock ball 24 connected to the inner wall of the front lock cylinder 12 is pushed upward. After the lock ball 24 is pushed upward, the card rod 22 inserted in the first recessed hole 19 on the outer wall of the front lock cylinder 12 is pushed out, thereby releasing the limit of the card rod 22 on the front lock cylinder 12. Then, the user turns the key to drive the front lock cylinder 12 to rotate forward by a corresponding angle on the inner wall of the lock cover 13, so that the key inserted into the front lock cylinder 12 is aligned with the keyhole on the side of the rear lock cylinder 18, and then continues to insert the rear lock cylinder 18 forward. 8, after the corresponding card rod 22 inserted in the first concave hole 19 on the outer wall of the rear lock cylinder 18 is pushed out, the key can be continued to be turned, thereby driving the lock cylinder to rotate the corresponding angle to open the lock. Then the user pulls out the key. At this time, the front lock cylinder 12 as a whole will rotate back to the corresponding angle under the action of the reset elastic force of the torsion spring 16 on the inner wall of the inner mounting ring groove 20, so that the front lock cylinder 12 can be reset after the key is pulled out. At the same time, the elastic force given to the front lock cylinder 12 by the torsion spring 16 can enable the front lock cylinder 12 to be stably connected to the inside of the lock cover 13. Example 2:

[0035] Locks, such as Figure 5-6 As shown, this embodiment makes the following improvements on the basis of embodiment 1: it includes a shell 1, the key guide block 2 is rotatably connected to the inner wall of one side of the shell 1, the outer wall of one side of the shell 1 is rotatably connected to a rotating block 8, the outer wall of one side of the rotating block 8 is fixed to the outer wall of one side of the rear section lock core 18, the outer wall of one side of the shell 1 is slidably connected to a lock tongue 4, the outer wall of the lock tongue 4 is fixed with a first push block 6, and the outer wall of the rotating block 8 is fixed with a second push block 7.

[0036] A group of support blocks 5 are fixed to the outer wall of one side of the housing 1 , a guide rail 3 is fixed to the outer wall of the lock tongue 4 , and the support blocks 5 are slidably connected to the outer wall of the guide rail 3 .

[0037] A first fixing piece 9 is fixed to the outer wall of the lock tongue 4 , a first spring 10 is fixed to the outer wall on one side of the first fixing piece 9 , a second fixing piece 11 is fixed to the outer wall on one side of the first spring 10 , and the second fixing piece 11 is fixed to the outer wall of the lock tongue 4 .

[0038] When the user turns the rear lock cylinder 18 with the key, the rotating block 8 on one side of the rear lock cylinder 18 will be driven to rotate, so that the first pushing block 6 on one side of the lock tongue 4 will be pushed to one side by the second pushing block 7 outside the rotating block 8, which can drive the lock tongue 4 on the outer wall of the first pushing block 6 to move inward under the support and guidance of the supporting block 5, and the lock tongue 4 protruding from the side of the shell 1 will be retracted, thereby opening the lock. When the user pulls out the key, the lock tongue 4 will move outward and reset under the elastic force of the first spring 10, so that the lock is locked again. At the same time, the lock tongue 4 moving back will push the second pushing block 7 to reset through the first pushing block 6 on the outer wall, thereby driving the rear lock cylinder 18 to rotate back to its original angle through the first pushing block 6, so that both the front lock cylinder 12 and the rear lock cylinder 18 can be smoothly reset after the key is pulled out, thereby improving the overall stability and service life of the lock.

[0039] When the user turns the rear lock cylinder 18 with the key, the rotating block 8 on one side of the rear lock cylinder 18 is driven to rotate, thereby pushing the first push block 6 on one side of the lock tongue 4 to move to one side through the second push block 7 outside the rotating block 8, which can drive the lock tongue 4 on the outer wall of the first push block 6 to move inward under the support and guidance of the support block 5, and retract the lock tongue 4 protruding from the side of the shell 1, thereby opening the lock. When the user pulls out the key, the lock tongue 4 will move outward and reset under the elastic force of the first spring 10, thereby putting the lock into the locked state again. At the same time, the lock tongue 4 moving back will push the second push block 7 to reset through the first push block 6 on the outer wall, thereby driving the rear lock cylinder 18 to rotate back to its original angle through the first push block 6, so that both the front lock cylinder 12 and the rear lock cylinder 18 can be smoothly reset after the key is pulled out.

[0040] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope of protection of the claims.

Claims

1. A segmented lock core, comprising a front segment lock core (12) and a rear segment lock core (18), characterized in that: The outer walls of the front lock core (12) and the rear lock core (18) are rotatably connected to a lock cover (13), the outer wall of the lock cover (13) is provided with two groups of through holes, the inner walls of the through holes are fixed with a fixing cap (14), the outer wall of the fixing cap (14) is fixed with a second spring (21), the outer wall of the second spring (21) is provided with a clamping rod (22), the clamping rod (22) is slidably connected to the through hole of the outer wall of the lock cover (13), the inner wall of the lock cover (13) is provided with an inner mounting ring groove (20), the outer wall of the front lock core (12) is fixed with a plurality of guide plates (15), the outer wall of the rear lock core (18) is provided with a guide groove (28), the guide plates (15) are rotatably connected to the outer wall of the guide groove (28), and the guide plates (15) and the inner wall of the inner mounting ring groove (20) are fixed with a torsion spring (16).

2. The segmented lock cylinder according to claim 1, characterized in that: The outer walls of the front lock core (12) and the rear lock core (18) are respectively provided with a plurality of first concave holes (19), the inner walls of the first concave holes (19) are connected to lock beads (24) via springs, and the clamping rod (22) is inserted into the inner walls of the first concave holes (19).

3. The segmented lock cylinder according to claim 2, characterized in that: A key guide block (2) is inserted into the inner wall of the front lock core (12).

4. The segmented lock cylinder according to claim 1, characterized in that: A limit block (17) is fixed on the outer wall of the guide piece (15), and a limit stopper (23) is fixed on the inner wall of the inner mounting ring groove (20).

5. A lock comprising a housing (1), characterized in that: The invention comprises a segmented lock core as described in claim 3, wherein the key guide block (2) is rotatably connected to an inner wall of one side of the shell (1), an outer wall of one side of the shell (1) is rotatably connected to a rotating block (8), an outer wall of one side of the rotating block (8) is fixed to an outer wall of one side of the rear lock core (18), a lock tongue (4) is slidably connected to an outer wall of one side of the shell (1), a first push block (6) is fixed to the outer wall of the lock tongue (4), and a second push block (7) is fixed to the outer wall of the rotating block (8).

6. The lock according to claim 5, characterized in that: A group of support blocks (5) are fixed to the outer wall of one side of the housing (1), a guide rail (3) is fixed to the outer wall of the lock tongue (4), and the support blocks (5) are slidably connected to the outer wall of the guide rail (3).

7. The lock according to claim 5, characterized in that: A first fixing plate (9) is fixed to the outer wall of the lock tongue (4), a first spring (10) is fixed to the outer wall on one side of the first fixing plate (9), a second fixing plate (11) is fixed to the outer wall on one side of the first spring (10), and the second fixing plate (11) is fixed to the outer wall of the lock tongue (4).

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