Pin tumbler lock cylinder and lock
By setting the machining holes and the second spring hole in a staggered manner, and using elastic elements to restrict the ejection of the pins, the problems of high production cost and high defect rate of pin tumbler lock cylinders in the existing technology are solved, achieving the effect of reducing costs and improving security.
Patent Information
- Application Number
- CN202423036662.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2034-12-09
AI Technical Summary
Existing pin tumbler lock cylinders are prone to leaving machining holes that connect with the rotary hole during the drilling process, causing the pins to come out, increasing production costs and the defect rate.
Design a pin tumbler lock core structure in which the machining hole and the second pin hole are misaligned. The first pin is driven by an elastic element to extend into the second pin hole and abut against the second pin, which prevents the pin from coming out when the core rotates and avoids additional sealing work.
It reduces the production cost and defect rate of pin tumbler lock cylinders, improves the security and complexity of lock cylinders, and avoids wear problems caused by grinding and sealing holes.
Smart Images
Figure CN223922809U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of lockset, especially a pin tumbler lock cylinder and lockset. BACKGROUND
[0002] The pin tumbler lock cylinder is widely used in various locksets as a common lock cylinder structure. The pin tumbler lock cylinder comprises a lock shell and a rotating core rotatingly arranged in a rotating hole of the lock shell. The lock shell and the rotating core are both provided with a pin hole for arranging a pin. In the prior art, a machining hole is left on the lock shell during the process of drilling the lock shell to obtain the pin hole, and the machining hole is located on the same line with the corresponding pin hole. The machining hole is communicated with the rotating hole. When the rotating core rotates in the rotating hole relative to the lock shell to make the machining hole correspond to the pin hole on the rotating core, the pin on the rotating core will be removed through the machining hole. To solve this problem, some manufacturers will perform a hole sealing work of filling and polishing on the machining hole. However, the inventor finds in the actual production process that: 1. The hole sealing work will increase the production cost of the pin tumbler lock cylinder; 2. The polishing step of the hole sealing work is easy to wear the lock shell, so the production defective rate of the pin tumbler lock cylinder is high. SUMMARY
[0003] The utility model aims at solving at least one of the technical problems existing in the prior art. To this end, the utility model provides a pin tumbler lock cylinder.
[0004] The utility model further provides a lockset with the pin tumbler lock cylinder.
[0005] According to the first aspect of the utility model discloses a pin tumbler lock cylinder, including lock shell and core, the lock shell is equipped with rotation hole, with the processing hole and first elastic hole that all with rotation hole intercommunication, the processing hole and first elastic hole are divided and are located the both sides of rotation hole and all are located same straight line, first elastic hole is equipped with elastic element and first pin, the elastic element is located between the hole bottom of first elastic hole and first pin, the core is rotatably worn in rotation hole, the core is equipped with the keyhole that supplies key to wear, with second elastic hole that intercommunication is communicated with keyhole, second elastic hole is equipped with second pin, and second pin partially protrudes in keyhole, the included angle of the axis of processing hole and the axis of second elastic hole is acute angle makes the processing hole and second elastic hole staggered arrangement, the elastic element drives first pin partially protrudes first elastic hole, and the part of first pin protruding first elastic hole is inserted into second elastic hole and is in contact with second pin, to limit the rotation of core relative to lock shell, wherein, when the correct key is inserted in keyhole, the key is pressed second pin, so that the first pin is retracted in the first elastic hole by the second pin pressing the first pin part inserted into the second elastic hole, so that the core can rotate relative to the lock shell, when the core rotates relative to the lock shell, the processing hole and the second elastic hole staggered arrangement can limit the second pin to be taken out through the processing hole.
[0006] According to the first aspect of the utility model discloses a pin tumbler lock cylinder, including lock shell and core, the lock shell is equipped with rotation hole, with the processing hole and first elastic hole that all with rotation intercommunication, the processing hole and first elastic hole are divided and are located the both sides of rotation hole and all are located same straight line, first elastic hole is equipped with elastic element and first pin, the elastic element is located between the hole bottom of first elastic hole and first pin, the core is rotatably worn in rotation hole, the core is equipped with the keyhole that supplies key to wear, with second elastic hole that intercommunication is communicated with keyhole, second elastic hole is equipped with second pin, and second pin partially protrudes in keyhole, the included angle of the axis of processing hole and the axis of second elastic hole is acute angle makes the processing hole and second elastic hole staggered arrangement, the elastic element drives first pin partially protrudes first elastic hole, and the part of first pin protruding first elastic hole is inserted into second elastic hole and is in contact with second pin, to limit the rotation of core relative to lock shell, wherein, when the correct key is inserted in keyhole, the key is pressed second pin, so that the first pin is retracted in the first elastic hole by the second pin pressing the first pin part inserted into the second elastic hole, so that the core can rotate relative to the lock shell, when the core rotates relative to the lock shell, the processing hole and the second elastic hole staggered arrangement can limit the second pin to be taken out through the processing hole.
[0007] Beneficial effects:
[0008] Through the above structure, when the core rotates relative to the lock shell, the processing hole and the second elastic hole staggered arrangement can limit the second pin to be taken out through the processing hole, specifically, refer to Figure 5 When the core rotates relative to the lock shell and makes the second elastic hole correspond to the processing hole, the second elastic hole and the processing hole deviate, and the second pin in the second elastic hole cannot be taken out through the processing hole, therefore, the pin tumbler lock cylinder of the application does not need to be additionally filled, polished and sealed, so on the one hand, the production cost of the whole pin tumbler lock cylinder can be reduced, and on the other hand, the problem of wear of the lock shell due to the polishing step can be avoided, and the production defective rate of the pin tumbler lock cylinder is reduced.
[0009] According to some embodiments of the utility model, the rotation hole and the keyhole are arranged along the front-back direction, the processing hole and the first elastic hole are arranged on the upper and lower sides of the rotation hole, the axis of the second elastic hole is arranged left or right inclined relative to the up-down direction, the axis of the first elastic hole is correspondingly arranged left or right inclined relative to the up-down direction, and the axis of the first elastic hole is also arranged backward inclined relative to the up-down direction.
[0010] According to some embodiments of the utility model, the number of the processing hole, the first bullet hole and the second bullet hole is set to at least two, at least two processing holes and at least two first bullet holes are located on the same straight line one by one, at least two first bullet holes and at least two second bullet holes are sequentially arranged along the front-back direction, the axis of one of the adjacent two first bullet holes is set to left tilt relative to the up-down direction, the axis of the other one is set to right tilt relative to the up-down direction, the axis of one of the adjacent two second bullet holes is set to left tilt relative to the up-down direction, the axis of the other one is set to right tilt relative to the up-down direction, wherein at least two elastic members respectively drive at least two first bullet parts to protrude from at least two first bullet holes, the part of at least two first bullets protruding from the first bullet hole respectively extends into at least two second bullet holes and respectively abuts against at least two second bullets, so as to limit the rotation of the rotating core relative to the lock shell.
[0011] According to some embodiments of the utility model, the length of one second bullet and another second bullet is different, so that the length of the corresponding two first bullets extending into the second bullet hole is different.
[0012] According to some embodiments of the utility model, the hole wall of the key hole is provided with a guide block, and the guide block is used for slidingly arranging a guide groove of a key.
[0013] According to some embodiments of the utility model, the part of the second bullet extending out of the key hole is provided with a guide inclined surface, and the guide inclined surface is used for abutting against a key.
[0014] According to some embodiments of the utility model, the hole wall of the second bullet hole is annularly provided with an abutting table, the circumferential side of the second bullet is annularly provided with an abutting part, the elastic member drives the first bullet to push the second bullet so that the abutting part of the second bullet abuts against the abutting table, so that the second bullet partially extends out of the key hole.
[0015] The lock according to the second aspect of the utility model comprises the pin tumbler lock core.
[0016] The lock according to the utility model has at least the following beneficial effects: through the above structure, the production cost of the whole pin tumbler lock core can be reduced, so that the production cost of the lock can be reduced.
[0017] Additional aspects and advantages of the utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS
[0018] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the references to the following drawings, of which:
[0019] Figure 1 is a structural diagram of an embodiment of the pin tumbler lock cylinder of the present application;
[0020] Figure 2 is Figure 1 is a sectional view of the pin tumbler lock cylinder shown in FIG.
[0021] Figure 3 is Figure 1 is another sectional view of the pin tumbler lock cylinder shown in FIG.
[0022] Figure 4 is Figure 1 is still another sectional view of the pin tumbler lock cylinder shown in FIG.
[0023] Figure 5 is Figure 1 is a sectional view of the pin tumbler lock cylinder after insertion of a correct key shown in FIG.
[0024] Figure 6 is Figure 2 is a sectional view of the lock housing and the first pin shown in FIG.
[0025] Figure 7 is Figure 2 is a sectional view of the plug and the second pin shown in FIG.
[0026] Reference Signs:
[0027] lock housing 100, turning hole 110, processing hole 120, first pin hole 130;
[0028] plug 200, key hole 210, guide block 211, second pin hole 220, abutting table 221;
[0029] elastic member 300;
[0030] first pin 400;
[0031] second pin 500, guide inclined surface 510, abutting portion 520. DETAILED DESCRIPTION
[0032] This part will describe the specific embodiments of the present application in detail, the preferred embodiments of the present application are shown in the drawings, the role of the drawings is to supplement the description of the text part with figures, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the present application, but it cannot be understood as the limitation of the protection scope of the present application.
[0033] In the description of the utility model, if it is described to first, second, third, fourth, fifth and so on, it is only for distinguishing technical features for the purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.
[0034] In the description of the utility model, it is understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right and the like, is based on the orientation or position relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and is not indicating or implying that the indicated device or element must have a particular orientation, a particular orientation and operation, therefore, it cannot be understood as a limitation of the utility model.
[0035] In the utility model, unless otherwise explicitly limited, the words such as "arrangement", "installation", "connection" should be understood broadly, for example, it can be directly connected, also can be indirectly connected through intermediate medium;It can be fixedly connected, also can be detachably connected, can also be integrally formed;It can be mechanical connection;It can be the communication or interaction relationship of two elements inside two elements.
[0036] Referring to Figures 1 to 4 The utility model embodiment a pin tumbler lock cylinder, it includes lock shell 100 and rotation core 200.
[0037] Lock shell 100 is equipped with rotation hole 110, and the machining hole 120 and the first elastic hole 130 that are communicated with rotation hole 110, machining hole 120 and first elastic hole 130 are divided and are located at the both sides of rotation hole 110 and are all located in same straight line, first elastic hole 130 is equipped with elastic element 300 and first pin 400, elastic element 300 is located between the hole bottom of first elastic hole 130 and first pin 400, rotation core 200 is rotatably arranged in rotation hole 110, rotation core 200 is equipped with key hole 210 for key to be arranged, and the second elastic hole 220 that is communicated with key hole 210, second elastic hole 220 is equipped with second pin 500, second pin 500 partially extends in key hole 210, the included angle of the axis of machining hole 120 and the axis of second elastic hole 220 is acute angle to make machining hole 120 and second elastic hole 220 misaligned, after elastic element 300 drives first pin 400 partially extends first elastic hole 130, first pin 400 that extends first elastic hole 130 partially extends second elastic hole 220 and abuts with second pin 500, to limit rotation core 200 relative to lock shell 100 rotation.Drive first pin 400 partially extends first elastic hole 130, first pin 400 partially extends first elastic hole 130, and the second elastic hole 220 is misaligned, and the second elastic hole 220 is misaligned.
[0038] When the correct key is inserted into the keyhole 210, the key presses against the second pin 500, so that the first pin 400 part extending into the second pin hole 220 is pressed by the second pin 500, the first pin 400 is retracted into the first pin hole 130, and the plug 200 can rotate relative to the lock shell 100.
[0039] It can be understood that the processing hole 120 and the first pin hole 130 are arranged on both sides of the rotating hole 110 and are located on the same straight line, so the axis of the processing hole 120 and the axis of the first pin hole 130 coincide and are named as L1; the axis of the second pin hole 220 is named as L2.
[0040] It can be understood that the first pin hole 130 is provided with the first pin 400, and the first pin 400 can move in the first pin hole 130 along the axis L1; the second pin hole 220 is provided with the second pin 500, and the second pin 500 can move in the second pin hole 220 along the axis L2.
[0041] Through the above structure, when the plug 200 rotates relative to the lock shell 100, the misaligned processing hole 120 and the second pin hole 220 can limit the second pin 500 from escaping through the processing hole 120. Specifically, refer to Figure 5 When the plug 200 rotates relative to the lock shell 100 to make the second pin hole 220 correspond to the processing hole 120, the second pin hole 220 and the processing hole 120 are offset, and the second pin 500 in the second pin hole 220 cannot escape through the processing hole 120, therefore, the pin tumbler lock core of the present application does not need to be additionally filled, polished and sealed, so on the one hand, the production cost of the overall pin tumbler lock core can be reduced, and on the other hand, the problem of wear of the lock shell 100 due to the polishing step can be avoided, and the production defective rate of the pin tumbler lock core is reduced.
[0042] In the present embodiment, refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 7 , the rotating hole 110 and the keyhole 210 are arranged in the front-rear direction, the processing hole 120 and the first pin hole 130 are arranged on the upper and lower sides of the rotating hole 110, the axis L1 of the first pin hole 130 is arranged backward relative to the up-down direction (specifically refer to Figure 3 ), the number of the processing hole 120, the first pin hole 130 and the second pin hole 220 is six, the six processing holes 120 and the six first pin holes 130 are located on the same straight line one by one, the six first pin holes 130 and the six second pin holes 220 are sequentially arranged in the front-rear direction, the axis L1 of one of the two adjacent first pin holes 130 is arranged leftward relative to the up-down direction, and the axis of the other one is arranged rightward relative to the up-down direction (specifically refer to Figure 4 and Figure 6one of the two adjacent second elastic holes 220 is arranged to be left-inclined relative to the up-down direction, and the axis L2 of the other one is arranged to be right-inclined relative to the up-down direction (see FIG. 6 for details) Figure 4 and Figure 7 The six elastic members 300 respectively drive the six first elastic pins 400 to partially extend out of the six first elastic holes 130, and the parts of the six first elastic pins 400 extending out of the first elastic holes 130 respectively extend into the six second elastic holes 220 and respectively abut against the six second elastic pins 500, so as to limit the rotation of the rotating core 200 relative to the lock shell 100.
[0043] It can be understood that the number of the first elastic holes 130 is six, the first elastic holes 130 are provided with the elastic members 300 and the first elastic pins 400, that is, the number of the elastic members 300 and the first elastic pins 400 is six; the number of the second elastic holes 220 is six, and the second elastic holes 220 are provided with the second elastic pins 500, that is, the number of the second elastic pins 500 is six.
[0044] It can be understood that the six first elastic holes 130 are respectively arranged in correspondence with the six second elastic holes 220, and details are described below with reference to Figure 4 When the axis L2 of one second elastic hole 220 is arranged to be right-inclined relative to the up-down direction, the axis L1 of the corresponding first elastic hole 130 is also arranged to be right-inclined relative to the up-down direction; when the axis L2 of one second elastic hole 220 is arranged to be left-inclined relative to the up-down direction, the axis L1 of the corresponding first elastic hole 130 is also arranged to be left-inclined relative to the up-down direction.
[0045] Through the above structure, the first elastic pins 400 and the second elastic pins 500 are both arranged to be inclined, which increases the complexity of the lock cylinder and improves the difficulty of technical unlocking, so as to greatly improve the security of the lock cylinder.
[0046] In some embodiments, the number of the processing holes 120, the first elastic holes 130 and the second elastic holes 220 is five, etc.
[0047] In the present embodiment, with reference to Figure 3 The length of one second elastic pin 500 is different from that of the other second elastic pin 500, so that the lengths of the two corresponding first elastic pins 400 extending into the second elastic hole 220 are different.
[0048] Through the above structure, the rotating core 200 can rotate relative to the lock shell 100, and the amount of movement required to drive the second elastic pins 500 of different lengths is different. In this way, the difficulty of technical unlocking can be further improved, so as to further improve the security of the lock cylinder.
[0049] In the present embodiment, with reference to Figure 1The hole wall of the keyhole 210 is provided with a guide block 211, which is used to slide a guide groove of the key, so that the key can be inserted into the keyhole 210 in a guided manner.
[0050] In the embodiment, with reference to Figure 3 The part of the second pin 500 extending out of the keyhole 210 is provided with a guide inclined surface 510, which is used to abut against the key.
[0051] Through the above structure, the guide inclined surface 510 can facilitate the key to push the second pin 500 to slide in the second pin hole 220.
[0052] The second pin hole 220 is provided with the second pin 500, and the second pin 500 extends out of the keyhole 210, in particular, with reference to Figure 3 The hole wall of the second pin hole 220 is annularly provided with an abutting table 221, and the periphery of the second pin 500 is annularly provided with an abutting part 520, and the elastic member 300 drives the corresponding first pin 400 to push the corresponding second pin 500, so that the abutting part 520 of the second pin 500 abuts against the abutting table 221, so that the corresponding second pin 500 extends out of the keyhole 210.
[0053] The utility model also proposes a lock, which comprises the above-mentioned pin tumbler cylinder. Through the above structure, the production cost of the overall pin tumbler cylinder can be reduced, so that the production cost of the lock can be reduced.
[0054] Of course, the utility model is not limited to the above-mentioned embodiment, and those skilled in the art can make equivalent transformations or replacements without departing from the spirit of the utility model. These equivalent transformations and replacements are all included in the range defined by the claims of the present application.
Claims
1. A pin tumbler lock cylinder, characterized by: The invention relates to a lock cylinder, comprising a lock housing (100) provided with a rotating hole (110), a processing hole (120) and a first elastic hole (130) which are in communication with the rotating hole (110), the processing hole (120) and the first elastic hole (130) are arranged on both sides of the rotating hole (110) and are located on the same straight line, the first elastic hole (130) is provided with an elastic element (300) and a first elastic ball (400), the elastic element (300) is located between the bottom of the first elastic hole (130) and the first elastic ball (400); a rotating core (200) which is rotatably arranged in the rotating hole (110), the rotating core (200) is provided with a key hole (210) for the key to pass through and a second elastic hole (220) which is in communication with the key hole (210), the second elastic hole (220) is provided with a second elastic ball (500), the second elastic ball (500) partially extends out of the key hole (210), the angle between the axis of the processing hole (120) and the axis of the second elastic hole (220) is an acute angle, so that the processing hole (120) and the second elastic hole (220) are arranged in a staggered manner, the elastic element (300) drives the first elastic ball (400) to partially extend out of the first elastic hole (130), the part of the first elastic ball (400) which extends out of the first elastic hole (130) extends into the second elastic hole (220) and abuts against the second elastic ball (500), so as to limit the rotation of the rotating core (200) relative to the lock housing (100), wherein when a correct key is inserted into the key hole (210), the key abuts against the second elastic ball (500), so that the part of the first elastic ball (400) which extends into the second elastic hole (220) is pressed by the second elastic ball (500), and the first elastic ball (400) is retracted into the first elastic hole (130), so that the rotating core (200) can rotate relative to the lock housing (100), when the rotating core (200) rotates relative to the lock housing (100), the processing hole (120) and the second elastic hole (220) which are arranged in a staggered manner can limit the second elastic ball (500) from being taken out through the processing hole (120).
2. The pin tumbler lock cylinder according to claim 1, wherein the rotating hole (110) and the key hole (210) are arranged along the front-back direction, the processing hole (120) and the first elastic hole (130) are arranged on the upper and lower sides of the rotating hole (110), the axis of the second elastic hole (220) is arranged to be left-inclined or right-inclined relative to the up-down direction, the axis of the first elastic hole (130) is correspondingly arranged to be left-inclined or right-inclined relative to the up-down direction, and the axis of the first elastic hole (130) is also arranged to be backward-inclined relative to the up-down direction.
3. The pin tumbler lock cylinder according to claim 2, wherein The number of the processing holes (120), the first bullet holes (130) and the second bullet holes (220) is at least two, at least two of the processing holes (120) and at least two of the first bullet holes (130) are located on the same line one by one, at least two of the first bullet holes (130) and at least two of the second bullet holes (220) are sequentially arranged along the front-back direction, the axis of one of the adjacent two first bullet holes (130) is left inclined relative to the up-down direction, and the axis of the other one is right inclined relative to the up-down direction, the axis of one of the adjacent two second bullet holes (220) is left inclined relative to the up-down direction, and the axis of the other one is right inclined relative to the up-down direction, wherein at least two of the elastic members (300) respectively drive at least two of the first bullets (400) to partially extend out of at least two of the first bullet holes (130), and the parts of the at least two of the first bullets (400) extending out of the first bullet holes (130) respectively extend into at least two of the second bullet holes (220) and respectively abut against at least two of the second bullets (500) to limit the rotation of the rotating core (200) relative to the lock shell (100).
4. The pin tumbler lock core according to claim 3, wherein: The length of one of the second bullets (500) and the other one of the second bullets (500) is different, so that the lengths of the corresponding two first bullets (400) extending into the second bullet holes (220) are different.
5. The pin tumbler lock core according to claim 1, wherein: The hole wall of the key hole (210) is provided with a guide block (211) for slidingly arranging a guide groove of a key.
6. The pin tumbler lock core according to claim 1, wherein: The part of the second bullet (500) extending out of the key hole (210) is provided with a guide inclined surface (510) for abutting against a key.
7. The pin tumbler lock core according to claim 1, wherein: The hole wall of the second bullet hole (220) is annularly provided with an abutting table (221), the periphery of the second bullet (500) is annularly provided with an abutting part (520), the elastic member (300) drives the first bullet (400) to push the second bullet (500) so that the abutting part (520) of the second bullet (500) abuts against the abutting table (221), so that the second bullet (500) partially extends out of the key hole (210).
8. A lock characterized by: A pin tumbler lock core as claimed in any one of claims 1-7.