Mechanical coded lock cylinder

Abstract

The utility model belongs to the field of lock bodies, and relates to a mechanical coded lock cylinder which comprises a lock cylinder shell, a linkage rod is arranged at the outer end of a motor linkage part, the motor linkage part extends into a mounting hole to form a cylinder, the side face of the cylinder extends in the radial direction to form a driving protrusion, the cylinder is sleeved with a cylinder sleeve, and a driving groove is formed in the side face of the cylinder sleeve. The sleeve extends towards the unlocking part to form a driving rod; a limiting sleeve is further arranged in the mounting hole, a first round hole is formed in the limiting sleeve, a first sliding block is arranged in the first round hole in a sliding mode, a lock cylinder is arranged between the limiting sleeve and the unlocking part, a second round hole is formed in the lock cylinder, a third round hole is formed in the unlocking part, and a second sliding block is arranged in the third round hole in a sliding mode. A compression spring is further arranged in the third round hole, and the compression spring always provides force for the second sliding block to slide towards the second round hole; the device has the advantages that the structure is simple, the linkage structure is directly arranged in the lock shell of the lock cylinder, and the overall size of the lock body is reduced.

Description

Technical Field

[0001] The invention belongs to the field of lock bodies and relates to a mechanical password lock core. Background Art

[0002] Before the password lock is decrypted, the unlocking part and the lock core are not linked, so the unlocking part cannot be used to unlock the lock; then after the decryption, the unlocking part and the lock core are linked, and the unlocking part can rotate the lock core to unlock the lock. The existing password lock has a large overall size because the linkage structure is outside the lock core, which has a great impact on the subsequent installation and use. Summary of the invention

[0003] In view of the above problems, the present invention provides a mechanical password lock cylinder, wherein the linkage structure of the device is directly arranged in the lock shell of the lock cylinder, thereby achieving the advantage of reducing the overall volume of the lock body.

[0004] The object of the present invention is achieved in that:

[0005] A mechanical password lock core, comprising a lock core housing, wherein a mounting hole is formed in the lock core housing and passes through the lock core housing, a motor linkage part is arranged at one end of the mounting hole, and an unlocking part is arranged at the other end of the mounting hole;

[0006] The motor linkage part is provided with a linkage rod toward the outer end of the mounting hole, the linkage rod is driven to rotate by the motor and drives the motor linkage part to rotate, the motor linkage part extends a cylinder toward the mounting hole, a driving protrusion is radially extended from the side of the cylinder, a sleeve is provided on the outer sleeve of the cylinder, a driving groove is formed on the side of the sleeve, the driving protrusion is arranged in the driving groove, and the rotation of the driving protrusion drives the sleeve to move left and right; the sleeve extends a driving rod toward the unlocking part;

[0007] A limiting sleeve is also provided in the mounting hole, a first circular hole is formed in the limiting sleeve, first limiting grooves are formed on both sides of the first circular hole, a first sliding block is slidably arranged in the first circular hole, and first limiting ridges matching the first limiting grooves are formed on both sides of the first sliding block; the driving rod matches the first limiting groove and is arranged in the first limiting groove;

[0008] A lock core is provided between the limiting sleeve and the unlocking part, a second circular hole is formed in the lock core, and second limiting grooves are formed on both sides of the second circular hole; when the second limiting groove is aligned with the first limiting groove, the first sliding block can slide into the second limiting groove;

[0009] A third circular hole is formed in the unlocking part, and third limiting grooves are formed on both sides of the third circular hole. A second sliding block is slidably arranged in the third circular hole, and second limiting ridges matching the third limiting grooves are formed on both sides of the second sliding block. The second sliding block also matches the second circular hole, and the second limiting ridge also matches the second limiting groove. When the second limiting groove and the third limiting groove are aligned, the second sliding block can slide into the second circular hole, and the second limiting ridge slides into the second limiting groove; a compression spring is also provided in the third circular hole, and the compression spring always gives the second sliding block a force to slide toward the second circular hole.

[0010] The utility model is further configured as follows: two driving protrusions are radially extended from the side surface of the cylinder, the two driving protrusions are arranged back to back, and two driving grooves are formed on the side surface of the sleeve, which correspond to the two driving protrusions one by one.

[0011] By arranging two driving protrusions that are arranged opposite to each other and the driving grooves that correspond to each other, the driving protrusion can drive the sleeve to move more stably.

[0012] The utility model is further configured as follows: the driving groove is an oblique groove or a V-shaped groove.

[0013] The utility model is further configured as follows: the motor linkage part, the limiting sleeve, the lock core and the unlocking part are axially fixed by a retaining spring.

[0014] The utility model is further configured as follows: a booster spring is arranged between the limit sleeve and the tube sleeve, and the booster spring always gives force to the tube sleeve in the direction of the linkage rod.

[0015] The design of the assist spring can help the sleeve move to the right without getting stuck, making it easier for the second sliding block to push the first sliding block out of the lock core to the right.

[0016] The utility model is further configured as follows: a limiting column is fixed on the cylinder sleeve, and a transverse displacement groove matching the limiting column is arranged on the shell.

[0017] Compared with the prior art, the utility model has the following outstanding and beneficial technical effects: through the above arrangement, when the external password is decrypted, the signal controls the motor to rotate and drives the linkage rod to rotate, the linkage rod drives the motor linkage part to rotate, the cylindrical driving protrusion on the motor linkage part and the driving groove on the sleeve cooperate to drive the sleeve to move to the right, the driving rod on the sleeve moves to the right, and the compression spring in the unlocking part slides the second sliding block into the second circular hole of the lock core, so that a part of the second sliding block is in the third circular hole and a part is in the second circular hole, thereby realizing the linkage between the unlocking part and the lock core, and rotating the unlocking part to realize unlocking. By arranging the linkage parts such as the motor linkage part, the limit sleeve, the first sliding block, the second sliding block in the lock core shell, the overall volume of the lock body is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 paying creative work.

[0019] Figure 1 It is a structural schematic diagram of the utility model.

[0020] Figure 2 It is a structural explosion diagram of the utility model.

[0021] Figure 3 It is a structural schematic diagram of the unlocking part.

[0022] Figure 4 It is a structural schematic diagram of the utility model without the outer shell.

[0023] Figure 5 This is the internal structure diagram of the utility model.

[0024] 1-lock cylinder housing; 2-motor linkage part; 3-unlocking part; 301-unlocking rod; 4-linking rod; 5-cylinder; 6-driving protrusion; 7-tube sleeve; 8-driving groove; 9-driving rod; 41-circlip; 42-assisting spring; 43-limiting column; 44-transverse groove;

[0025] 10-limiting sleeve; 11-first circular hole; 12-first limiting groove; 13-first sliding block; 14-first limiting ridge;

[0026] 21-lock core; 22-second circular hole; 23-second limiting groove;

[0027] 31 - third circular hole; 32 - third limiting groove; 33 - second sliding block; 34 - second limiting ridge; 35 - compression spring. DETAILED DESCRIPTION

[0028] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0029] A mechanical password lock core, comprising a lock core housing 1, wherein a mounting hole 101 extending through the lock core housing 1 is formed, a motor linkage part 2 is arranged at one end of the mounting hole, and an unlocking part 3 is arranged at the other end of the mounting hole;

[0030] The motor linkage part 2 is provided with a linkage rod 4 toward the outer end of the mounting hole, the linkage rod is driven to rotate by the motor and drives the motor linkage part 2 to rotate, the motor linkage part 2 extends a cylinder 5 toward the mounting hole, the side of the cylinder 5 radially extends a driving protrusion 6, the cylinder 5 is provided with a sleeve 7 on the outer surface, the side of the sleeve 7 is formed with a driving groove 8, the driving protrusion 6 is arranged in the driving groove 8, the driving protrusion 6 rotates to drive the sleeve 7 to move left and right; the sleeve 7 extends a driving rod 9 toward the unlocking part 3;

[0031] A limiting sleeve 10 is further provided in the mounting hole, a first circular hole 11 is formed in the limiting sleeve 10, first limiting grooves 12 are formed on both sides of the first circular hole 11, a first sliding block 13 is slidably provided in the first circular hole 11, and first limiting ridges 14 matching the first limiting grooves 12 are formed on both sides of the first sliding block 13; the driving rod 9 matches the first limiting groove 12 and is arranged in the first limiting groove 12;

[0032] A lock core 21 is provided between the limiting sleeve 10 and the unlocking portion 3, a second circular hole 22 is formed in the lock core 21, and second limiting grooves 23 are formed on both sides of the second circular hole 22; the first sliding block 13 also matches the second circular hole 22, and the first limiting ridge 14 also matches the second limiting groove 23. When the second limiting groove 23 is aligned with the first limiting groove 12, the first sliding block 13 can slide into the second limiting groove 23;

[0033] A third circular hole 31 is formed in the unlocking part 3, and third limiting grooves 32 are formed on both sides of the third circular hole 13. A second sliding block 33 is slidably arranged in the third circular hole 31, and second limiting ridges 34 matching the third limiting grooves 32 are formed on both sides of the second sliding block 33. The second sliding block 33 also matches the second circular hole 22, and the second limiting ridge 34 also matches the second limiting groove 23. When the second limiting groove 23 and the third limiting groove 32 are aligned, the second sliding block 33 can slide into the second circular hole 22, and the second limiting ridge 34 slides into the second limiting groove 23. A compression spring 35 is also provided in the third circular hole 31, and the compression spring 35 always gives the second sliding block 33 a force to slide toward the second circular hole 22.

[0034] The outer end of the unlocking portion 3 is connected to the unlocking rod 301 .

[0035] Two driving protrusions 6 are radially extended from the side of the cylinder 5, and the two driving protrusions 6 are arranged opposite to each other. Two driving grooves 8 are formed on the side of the sleeve 7, which correspond to the two driving protrusions 6 one by one. By setting two driving protrusions 6 arranged opposite to each other and the driving grooves 8 corresponding to each other, the driving protrusions can drive the sleeve to move more stably.

[0036] The driving groove 8 is an oblique groove or a V-shaped groove.

[0037] The motor linkage part 2 , the limiting sleeve 10 , the lock core 31 and the unlocking part 3 are axially fixed by a retaining spring 41 .

[0038] A booster spring 42 is provided between the limit sleeve 10 and the cylinder sleeve 7, and the booster spring 42 always applies force to the cylinder sleeve 7 in the direction of the linkage rod 4. The design of the booster spring can help the cylinder sleeve move to the right without getting stuck, so that the second sliding block can push the first sliding block to the right from the lock core.

[0039] A limiting column 43 is fixed on the cylinder sleeve 7 , and a transverse displacement groove 44 matching with the limiting column 43 is provided on the shell.

[0040] The working principle of this utility model:

[0041] When the mechanical lock is locked, the signal controls the motor to rotate and drives the linkage rod 4 to rotate. The linkage rod 4 rotates with the motor linkage part 2. The driving protrusion 6 of the cylinder 5 on the motor linkage part 2 and the driving groove 8 on the sleeve 7 cooperate to drive the sleeve 7 to move left. The driving rod 9 on the sleeve 7 moves left and pushes the first sliding block 13 to slide into the second limiting groove 23 of the lock cylinder 21. At this time, a part of the first sliding block 13 is in the first limiting groove 12, and a part is in the second limiting groove 23, and the second sliding block 33 in the lock cylinder 21 is squeezed out of the lock cylinder 21, so that the unlocking part 3 and the lock cylinder 21 lose linkage, and the unlocking part 3 cannot be unlocked.

[0042] When the external password is decrypted, the signal controls the motor to rotate and drives the linkage rod 4 to rotate. The linkage rod 4 rotates with the motor linkage part 2. The driving protrusion 6 of the cylinder 5 on the motor linkage part 2 and the driving groove 8 on the tube sleeve 7 cooperate to drive the tube sleeve 7 to move to the right. The driving rod 9 on the tube sleeve 7 moves to the right. The compression spring 35 in the third limiting groove 32 on the unlocking part 3 slides the second sliding block 33 into the second limiting groove 23 of the lock cylinder 21, so that a part of the second sliding block 33 is in the third limiting groove 32 and a part of it is in the second limiting groove 23, thereby realizing the linkage between the unlocking part 3 and the lock cylinder 21, and rotating the unlocking part 3 to realize unlocking.

[0043] The linkage structure of the unlocking part and the lock core of the present invention is directly arranged in the lock shell of the lock core, so that the overall volume of the lock body becomes smaller.

[0044] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A mechanical password lock cylinder, comprising a lock cylinder housing, characterized in that: The lock core housing is formed with a mounting hole extending through the left and right sides, one end of the mounting hole is provided with a motor linkage part, and the other end of the mounting hole is provided with an unlocking part; The motor linkage part is provided with a linkage rod toward the outer end of the mounting hole, the linkage rod is driven to rotate by the motor and drives the motor linkage part to rotate, the motor linkage part extends a cylinder toward the mounting hole, a driving protrusion is radially extended from the side of the cylinder, a sleeve is provided on the outer sleeve of the cylinder, a driving groove is formed on the side of the sleeve, the driving protrusion is arranged in the driving groove, and the rotation of the driving protrusion drives the sleeve to move left and right; the sleeve extends a driving rod toward the unlocking part; A limiting sleeve is also provided in the mounting hole, a first circular hole is formed in the limiting sleeve, first limiting grooves are formed on both sides of the first circular hole, a first sliding block is slidably arranged in the first circular hole, and first limiting ridges matching the first limiting grooves are formed on both sides of the first sliding block; the driving rod matches the first limiting groove and is arranged in the first limiting groove; A lock core is provided between the limiting sleeve and the unlocking part, a second circular hole is formed in the lock core, and second limiting grooves are formed on both sides of the second circular hole; when the second limiting groove is aligned with the first limiting groove, the first sliding block can slide into the second limiting groove; A third circular hole is formed in the unlocking part, and third limiting grooves are formed on both sides of the third circular hole. A second sliding block is slidably arranged in the third circular hole, and second limiting ridges matching the third limiting grooves are formed on both sides of the second sliding block. The second sliding block also matches the second circular hole, and the second limiting ridge also matches the second limiting groove. When the second limiting groove and the third limiting groove are aligned, the second sliding block can slide into the second circular hole, and the second limiting ridge slides into the second limiting groove; a compression spring is also provided in the third circular hole, and the compression spring always gives the second sliding block a force to slide toward the second circular hole.

2. A mechanical password lock cylinder according to claim 1, characterized in that: Two driving protrusions are radially extended from the side surface of the cylinder, and the two driving protrusions are arranged back to back. Two driving grooves are formed on the side surface of the sleeve, which correspond to the two driving protrusions one by one.

3. A mechanical code lock cylinder according to claim 2, characterized in that: The driving groove is an oblique groove or a V-shaped groove.

4. A mechanical code lock cylinder according to claim 1, characterized in that: The motor linkage part, the limiting sleeve, the lock core and the unlocking part are axially fixed by a retaining spring.

5. A mechanical code lock cylinder according to claim 1, characterized in that: A booster spring is arranged between the limiting sleeve and the cylinder sleeve, and the booster spring always applies force to the cylinder sleeve in the direction of the linkage rod.

6. A mechanical code lock cylinder according to claim 1, characterized in that: A limiting column is fixed on the cylinder sleeve, and a transverse displacement groove matching the limiting column is arranged on the shell.

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