CN215369198U - Spring lock core - Google Patents

Spring lock core Download PDF

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Publication number
CN215369198U
CN215369198U CN202121668573.3U CN202121668573U CN215369198U CN 215369198 U CN215369198 U CN 215369198U CN 202121668573 U CN202121668573 U CN 202121668573U CN 215369198 U CN215369198 U CN 215369198U
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CN
China
Prior art keywords
marble
safety
lock core
pin tumbler
key
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Active
Application number
CN202121668573.3U
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Chinese (zh)
Inventor
蔡永梁
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Suzhou Jiuchi Intelligent Security Technology Co ltd
Original Assignee
Suzhou Wanshengyi Hardware Lock Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Suzhou Wanshengyi Hardware Lock Co ltd filed Critical Suzhou Wanshengyi Hardware Lock Co ltd
Priority to CN202121668573.3U priority Critical patent/CN215369198U/en
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Publication of CN215369198U publication Critical patent/CN215369198U/en
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Abstract

The utility model discloses a pin tumbler lock core, which comprises a lock core shaft and a lock core shell, wherein the lock core shaft is rotatably sleeved in the lock core shell, a key groove is formed in the center of the lock core shaft along the length direction, and the pin tumbler lock core also comprises a first pin tumbler mechanism and a second pin tumbler mechanism which are oppositely arranged; the first pin tumbler mechanism is arranged in the lock core shaft and the lock core shell and comprises a plurality of pin tumbler components, and each pin tumbler component is provided with a lock piece which can prevent the lock core shaft from rotating; the second pin tumbler mechanism is arranged in the lock core shaft. The utility model adopts the synergistic effect of two marble mechanisms, reduces the mutual opening rate and simultaneously avoids the problem that the door can be opened without inserting a key in place.

Description

Spring lock core
Technical Field
The utility model relates to the technical field of door locks, in particular to a spring lock core.
Background
With the social development, people have higher and higher requirements on the safety level of the door lock, and when the anti-theft door lock is produced, manufacturers know the maximum combination quantity in advance according to the processing precision and the quantity of marbles or beads, and continuously and circularly produce according to the arrangement and combination, so that the mutual opening rate exists. The mutual unlocking rate is the proportion of mutual unlocking (percentage of the quotient of the unlocked times and the trial unlocking total number) of a certain number of locks in the same lock batch within a specified time. When a lock product is opened by a key in the existing market, the lock can be unlocked without inserting the key in place, or other keys can be unlocked, so that the mutual unlocking rate is high.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a spring lock core which can prevent the problem that the lock can be unlocked only when a key is not inserted in place and has a large mutual opening rate.
In order to achieve the purpose, the utility model provides the following technical scheme:
a pin tumbler lock core comprises a lock core shaft and a lock core shell, wherein the lock core shaft is rotatably sleeved in the lock core shell, a key slot is formed in the center of the lock core shaft along the length direction, and the pin tumbler lock core also comprises a first pin tumbler mechanism and a second pin tumbler mechanism which are oppositely arranged; the first pin tumbler mechanism is arranged in the lock core shaft and the lock core shell and comprises a plurality of pin tumbler components, and each pin tumbler component is provided with a lock piece which can prevent the lock core shaft from rotating; the second pin tumbler mechanism is arranged in the lock core shaft.
Furthermore, the locking piece comprises a plurality of marble components, the marble components comprise a return spring, an upper marble and a lower marble, the return spring is fixedly connected with the upper marble, and the upper marble is tightly attached to the lower marble.
Furthermore, a lower ball hole is radially formed in the lock core shaft, a plurality of upper ball holes are formed in the lock core shell, and the upper ball holes and the lower ball holes are in one-to-one correspondence coaxial structures.
Furthermore, the upper marble is of a pocket groove structure, the bottom of the upper marble is of a plane structure and can be tightly attached to the top plane of the lower marble, and the return spring is fixedly arranged in the pocket groove of the upper marble.
Furthermore, the lock core shaft is also provided with a rotating piece, the bottom of the key slot extends into the rotating piece, and a blocking piece is fixedly arranged at the bottom of the rotating piece; the key slot bottom is equipped with the locating part, the locating part set firmly in the rotating member, the lock core axle rotates and drives the rotating member with the separation blade rotates.
Furthermore, a step-shaped safety bullet hole is formed in the lock core shaft, and the second bullet mechanism is movably arranged in the safety bullet hole.
Furthermore, the second pin tumbler mechanism comprises at least one safety pin tumbler, the safety pin tumbler comprises a safety upper pin tumbler and a safety lower pin tumbler, the top of the safety upper pin tumbler protrudes out of the key slot, and the safety upper pin tumbler can retract into the safety lower pin tumbler after being stressed.
Furthermore, a spring is fixedly arranged in the safety lower marble, the safety upper marble is fixedly arranged at the top of the spring, and the top of the safety upper marble can stretch into the safety lower marble after being acted by external force.
Furthermore, the top of the safety upper marble is in a conical shape, a safety marble groove matched with the top is arranged on the key, the safety marble groove has a groove body structure with a certain gradient, and the gradient of the groove body of the safety marble groove is the same as the conical taper of the top of the safety upper marble.
Furthermore, the top of the safety upper marble is of a flat-top structure.
In conclusion, the utility model has the following beneficial effects:
1. the cooperation of the two marble mechanisms is adopted, the mutual opening rate is reduced, and the problem that the door can be opened without inserting a key in place is solved.
2. If the used key is not provided with a safety marble groove, the groove body is not matched or the key is not inserted to the position, when the key is rotated, the safety upper marbles are clamped on the surface of the key, so that the key cannot be rotated, the locking state of the lock cylinder cannot be released, and the safety coefficient of the key is improved.
Drawings
Fig. 1 is a prior art of the present invention.
Fig. 2 is a schematic structural diagram of embodiment 1 of the present invention.
Fig. 3 is a schematic structural diagram of embodiment 2 of the present invention.
Fig. 4 is a partially enlarged view of fig. 3.
Fig. 5 is a partially enlarged view of fig. 3.
Fig. 6 is a front view of the embodiment 2 of the present invention.
FIG. 7 is a schematic view of a key structure in embodiment 2 of the present invention
In the figure: 1, locking a core shaft; 101, a bullet hole is arranged; 2, a lock cylinder shell; 201, a bullet hole; 3, a key slot; 301 a limit piece; 4 an bullet assembly; 401 sealing a piece; 402 a return spring; 403, mounting marbles; 404 lower marble; 5, a lock cylinder shell sleeve; 6, blocking sheets; 7 safety marbles; 701 safety marble feeding; the safety of 702 is that marbles are put; 8, a key; 801 a bullet groove; 802 a safety bullet slot; 9 a rotating member.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
In order to facilitate understanding of the technical solution of the present invention, the following description will be made of related art in the prior art.
Referring to fig. 1, the lock cylinder in the prior art includes a cylindrical lock cylinder shaft 1, a lock cylinder housing 2 rotatably sleeved on the lock cylinder shaft 1, and a lock cylinder housing sleeve 5 fixedly disposed outside the lock cylinder housing 2. A key groove 3 is formed in the lock core shaft 1 along the length direction, a key 8 is inserted into the key groove 3, and the spring mechanism is driven to rotate to realize the action of opening the door. A plurality of upper bullet holes 201 are arranged in the lock cylinder shell 2, and the upper bullet holes 201 correspond to the lower bullet holes 101 one by one.
Wherein the pin tumbler mechanism generally comprises 3-5 pin tumbler components 4 which are vertically arranged with the key slot 3, and the pin tumbler components 4 are movably arranged in the lower pin tumbler holes 101. The ball component 4 sequentially comprises a sealing strip 401, a return spring 402, an upper ball 403 and a lower ball 404 from top to bottom, the sealing strip 401, the return spring 402 and the upper ball 403 are arranged in an upper ball hole 201 of the lock cylinder shell 2, the lower ball 404 is closely attached to the bottom of the upper ball 403, and the return spring 402 is fixedly arranged at the top of the upper ball 403. . The lower pin 404 is movably disposed in the lower pin hole 101.
The number of the marbles of the spring lock core is generally 3-5, when a key is inserted into the key groove, the lower marbles 404 are pushed to the position flush with the key groove surface in the lock core shaft 1 by the key, the lock can be unlocked by rotating the lock core, the lock can be unlocked even if the key is not inserted in place, and the mutual unlocking rate between locks is large.
In order to avoid the above situation, the present embodiment is technically improved, and the technical solution is further described below with reference to the drawings of the specification.
Example 1
Referring to fig. 2 and 4, the embodiment is improved based on the prior art. This embodiment includes columniform lock core axle 1 and lock core shell 2, and lock core axle 1 rotationally overlaps and establish in lock core shell 2, and key slot 3 has been seted up along length direction in lock core axle 1 center, and the bottom of key slot 3 is equipped with locating part 301, and locating part 301 can restrict key 8 and further move forward. The lock core shaft 1 is further provided with a rotating part 9, the bottom of the key slot 3 extends into the rotating part 9, and the limiting part 301 is arranged in the rotating part 9. The bottom of the rotating piece 9 is provided with a baffle 6. The rotation of the lock core shaft 1 can drive the rotating piece 9 to rotate, so that the blocking piece 6 rotates along with the rotation.
When the key 8 is inserted into the key slot 3 until the bottom of the slot, the stopper 301 fixes the top end of the key 8 so that it cannot move forward. The stopper 301 is shaped to match the shape of the tip of the key 8, and can lock the tip of the key 8. When the key 8 is turned, the stopper 301 drives the rotary member 9 to rotate simultaneously, so that the blocking plate 6 rotates therewith.
The lock core shaft 1 is provided with a lower ball hole 101 in the radial direction. A plurality of upper ball holes 201 are arranged in the lock cylinder shell 2, the upper ball holes 201 correspond to the lower ball holes 101 one by one, namely the lower ball holes 101 and the upper ball holes 201 keep coaxial positions, and the ball mechanisms are arranged in the upper ball holes 201 and the lower ball holes 101.
The pin tumbler mechanism of the present embodiment comprises a plurality of pin tumbler assemblies 4, and the number of the pin tumblers of the present embodiment is at least 6. The bullet assembly 4 includes a locking member and a sealing piece 401, the locking member is movably disposed in the lock cylinder 1 and the lock cylinder housing 2, and can prevent the rotation of the joint surface between the lock cylinder 1 and the lock cylinder housing 2. The sealing plate 401 is fixed in the circumferential wall of the lock cylinder shell 2 to prevent the locking piece from being released from the lock cylinder shell 2.
The locking piece comprises a return spring 402, an upper marble 403 and a lower marble 404, wherein the lower marble 404 is tightly attached to the bottom of the upper marble 403, and the length of the lower marble 404 is matched with the tooth pattern or the marble groove of the key 8. In the locked state, the upper pin 403 or the lower pin 404 is clamped on the sleeved joint surface of the lock cylinder 1 and the lock cylinder shell 2, so that the lock cylinder 1 cannot rotate, and locking is realized. When the key 8 is inserted, the lower pin 404 pushes the upper pin 403 upwards, so that the top of the lower pin 404 can be flush with the upper notch of the lower pin hole 101, the lock cylinder 1 rotates in the lock cylinder shell 2, and the locking state is released. Preferably, the upper pin 403 of this embodiment has a pocket structure, the bottom of the upper pin has a planar structure, and the upper pin can be tightly attached to the top plane of the lower pin 404, and the return spring 402 is fixedly disposed in the pocket of the upper pin 403. A return spring 402 and upper pin 403 are disposed in the cylinder housing 2 and a lower pin 404 is disposed in the pin hole 101 in the cylinder 1.
Example 2
Referring to fig. 3-7, as a further technical improvement based on the above embodiment 1, a safety pin mechanism is provided on the opposite side of the pin mechanism, and the safety pin mechanism includes at least one safety pin 7. A step-shaped safety bullet hole 102 is arranged in the lock core shaft 1, and the safety bullet 7 is movably arranged in the safety bullet hole 7. The safety marble 7 comprises a safety upper marble 701 and a safety lower marble 702, wherein the top of the safety upper marble 701 protrudes out of the key slot 3, and can retract into the safety lower marble 702 under stress. Preferably, a spring is fixedly arranged in the safety lower marble 702, the safety upper marble 701 is fixedly arranged at the top of the spring, and the top of the safety upper marble 701 can stretch into the safety lower marble 702 under the action of external force.
The top of the safety upper marble 701 is in a conical shape with a flat top structure, the key 8 is provided with a safety marble groove 802 matched with the key, the bottom of the safety marble groove 802 is a plane, the side surface of the safety marble groove 802 is in a groove body structure with a certain gradient, the gradient of the groove body is the same as the conical taper of the top of the safety upper marble 701, the flat top structure of the top of the safety upper marble 701 is tightly attached to the bottom of the safety marble groove 802 when the key is rotated, and the side surface of the cone body structure is pushed by the groove body of the safety marble groove 802, so that the safety upper marble 701 is retracted into the lock core shaft 1. If the key is not provided with the safety bullet groove 802 or the groove bodies are not matched, when the key 8 is rotated, the safety upper bullet 701 is clamped on the surface of the key 8, so that the key cannot be rotated, and the locking state of the lock cylinder cannot be released.
The working principle is as follows: the key 8 is inserted into the key slot 3, the top end of the key 8 is clamped by the limiting part 301 so that the key cannot move forward continuously, the lower marbles 404 of the marble component 4 sequentially fall into the marble slot 801 of the key 8, the top of the lower marbles 404 can be flush with the upper notch of the lower marble hole 101, the top of the safety upper marbles 701 is clamped in the safety marble slot 802, the key 8 is rotated, the safety upper marbles 701 retract into the lock cylinder 1, the lock cylinder 1 can rotate, and the rotary piece 9 and the baffle 6 fixed on the rotary piece 9 are driven to rotate, so that the locking state is relieved. If the upper marble 403 or the lower marble 404 in the marble component 4 of the key 8 is not matched with the groove body of the safety marble groove 802 or the safety upper marble 701 is not matched with the safety marble groove 802, the lock core shaft 1 cannot rotate, namely, the locking state cannot be released, so that the mutual unlocking rate is reduced, and the problem that the door can be opened when the key is not inserted in place is avoided.
What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the utility model.

Claims (10)

1. The utility model provides a marble lock core, includes lock core axle (1) and lock core shell (2), lock core axle (1) rotationally cup joints in lock core shell (2), key slot (3), its characterized in that have been seted up along length direction in the center of lock core axle (1): the device also comprises a first pin tumbler mechanism and a second pin tumbler mechanism, wherein the first pin tumbler mechanism and the second pin tumbler mechanism are arranged oppositely;
the first pin tumbler mechanism is arranged in the lock core shaft (1) and the lock core shell (2) and comprises a plurality of pin tumbler assemblies (4), the pin tumbler assemblies (4) are provided with locking pieces, and the locking pieces can prevent the lock core shaft (1) from rotating;
the second pin tumbler mechanism is arranged in the lock core shaft (1).
2. The night lock cylinder of claim 1, wherein: the locking piece comprises a plurality of marble components (4), wherein the marble components (4) comprise a return spring (402), an upper marble (403) and a lower marble (404), the return spring (402) is fixedly connected with the upper marble (403), and the upper marble (403) is tightly attached to the lower marble (404).
3. A night lock cylinder according to claim 2, wherein: the lock core shaft is characterized in that a lower ball hole (101) is formed in the lock core shaft (1) in the radial direction, a plurality of upper ball holes (201) are formed in the lock core casing (2), and the upper ball holes (201) and the lower ball holes (101) are of coaxial structures in one-to-one correspondence.
4. A night lock cylinder according to claim 2, wherein: the upper marble (403) is of a pocket groove structure, the bottom of the upper marble is of a plane structure and can be tightly attached to the top plane of the lower marble (404), and the return spring (402) is fixedly arranged in the pocket groove of the upper marble (403).
5. A night lock cylinder according to any one of claims 1 to 4, wherein: the lock core shaft (1) is further provided with a rotating piece (9), the bottom of the key slot (3) extends into the rotating piece (9), and a blocking piece (6) is fixedly arranged at the bottom of the rotating piece (9); key slot (3) bottom is equipped with locating part (301), locating part (301) set firmly in revolving part (9), lock core axle (1) rotates and drives revolving part (9) with separation blade (6) rotate.
6. The night lock cylinder of claim 1, wherein: a step-shaped safety bullet hole (102) is formed in the lock core shaft (1), and the second bullet mechanism is movably arranged in the safety bullet hole (102).
7. The night lock cylinder of claim 6, wherein: the second pin tumbler mechanism comprises at least one safety pin tumbler (7), the safety pin tumbler (7) comprises a safety upper pin tumbler (701) and a safety lower pin tumbler (702), the top of the safety upper pin tumbler (701) protrudes out of the key slot (3), and the safety upper pin tumbler can retract into the safety lower pin tumbler (702) after being stressed.
8. The night lock cylinder of claim 7, wherein: a spring is fixedly arranged in the safety lower marble (702), the safety upper marble (701) is fixedly arranged at the top of the spring, and the top of the safety upper marble (701) can stretch into the safety lower marble (702) after the safety lower marble is acted by external force.
9. The night lock cylinder of claim 8, wherein: the top of the safety upper marble (701) is in a conical shape, a safety marble groove (802) matched with the top is arranged on the key, the safety marble groove (802) has a groove body structure with a certain gradient, and the gradient of the groove body of the safety marble groove (802) is the same as the conical taper of the top of the safety upper marble (701).
10. The night lock cylinder of claim 9, wherein: the top of the safety upper marble (701) is of a flat-top structure.
CN202121668573.3U 2021-07-21 2021-07-21 Spring lock core Active CN215369198U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121668573.3U CN215369198U (en) 2021-07-21 2021-07-21 Spring lock core

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121668573.3U CN215369198U (en) 2021-07-21 2021-07-21 Spring lock core

Publications (1)

Publication Number Publication Date
CN215369198U true CN215369198U (en) 2021-12-31

Family

ID=79611134

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121668573.3U Active CN215369198U (en) 2021-07-21 2021-07-21 Spring lock core

Country Status (1)

Country Link
CN (1) CN215369198U (en)

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GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20221130

Address after: No.96 Renmin Road, Huangdai Town, Xiangcheng District, Suzhou City, Jiangsu Province

Patentee after: Suzhou Jiuchi Intelligent Security Technology Co.,Ltd.

Address before: No.96 Renmin Road, Huangdai Town, Xiangcheng District, Suzhou City, Jiangsu Province

Patentee before: Suzhou Wanshengyi Hardware Lock Co.,Ltd.