Mechanical lock capable of strengthening detection of key teeth

Abstract

The invention relates to a mechanical lock capable of strengthening detection of key teeth. The mechanical lock comprises a lock cylinder, a lock shell, a lock shell upper cover, a lock hanger, a lock plunger, a rotary button and a key tooth detection system. The lock cylinder is arranged in the lock shell, the lock shell upper cover is arranged on the lock shell, the lock hanger is connected with the lock shell, the lock bolt is arranged in the lock shell and used for locking the lock hanger, the rotating button is connected with the lock cylinder, the key tooth detection system is arranged in the lock shell, and the key tooth detection system is arranged in the lock shell. The key tooth detection system is arranged opposite to the lock cylinder; the key tooth detection system comprises a tooth detection fan-shaped wheel, a return spring, a transmission crankshaft, a positioning supporting plate, a positioning buckle and a transmission long shaft, the positioning buckle is in transmission connection with the rotating button, and the positioning buckle is used for limiting or releasing rotation of the lock cylinder through the rotating button. Compared with the prior art, the mechanical lock is prevented from being opened by a master key, the safety of the lock is improved, and the reliability of the mechanical lock is improved.

Description

Technical Field

[0001] The invention relates to the technical field of locks, and in particular to a mechanical lock capable of strengthening key teeth detection. Background Art

[0003] In recent years, new types of keys such as cross keys and concave keys have been developed, which are only changes in quantity and shape based on the principle of pin lock cylinders, and do not change the actual way of tooth verification. In recent years, electronic locks have also developed rapidly, including card locks, fingerprint locks, etc., but they have a common defect - they need power to maintain and their use scenarios are limited.

[0004] The prior art has the following problems: In the prior art, mechanical locks are not provided with a key tooth detection system, and the mechanical locks are unsafe and unreliable. Summary of the invention

[0005] In view of the above problems, the present application provides a mechanical lock capable of strengthening key tooth detection, which is used to solve the technical problem that the mechanical lock is not provided with a key tooth detection system and the mechanical lock is unsafe and unreliable.

[0006] To achieve the above-mentioned purpose, in a first aspect, the present application provides a mechanical lock capable of strengthening key detection, comprising a lock core, a lock housing, a lock housing upper cover, a lock hanger, a lock bolt, a rotary knob and a key detection system; The lock core is arranged in the lock housing, the lock housing upper cover is arranged on the lock housing, the lock hook is connected to the lock housing, the lock bolt is arranged in the lock housing for locking the lock hook, the turning button is connected to the lock core, the detection key tooth system is arranged in the lock housing, and the detection key tooth system is arranged relative to the lock core; The key tooth detection system includes a tooth detection sector wheel, a return spring, a transmission crankshaft, a positioning support plate, a positioning buckle and a transmission long shaft. The positioning support plate is fixed on one side of the lock core, the tooth detection sector wheel is hinged on the positioning support plate, the tooth detection sector wheel is arranged relative to the pin of the lock core, the tooth shape of the tooth detection sector wheel is adapted to the shape of the pin of the lock core, one end of the transmission crankshaft is transmission-connected to the tooth detection sector wheel, the other end of the transmission crankshaft is transmission-connected to the transmission long shaft, the transmission long shaft is transmission-connected to the positioning buckle, the positioning buckle is transmission-connected to the turning knob, and the positioning buckle is used to limit or release the rotation of the lock core through the turning knob.

[0007] As an implementation manner of the present invention, one end of the return spring is connected to the gear-detecting sector wheel, and the other end of the return spring is connected to the positioning support plate.

[0008] As an embodiment of the present invention, the positioning support plate includes a first mounting portion, the gear detection sector wheel is hinged to the first mounting portion, one end of the transmission crankshaft is hinged to the left side of the gear detection sector wheel, the other end of the gear detection sector wheel is hinged to the bottom of the transmission long shaft, and the top of the transmission long shaft is hinged to the right side of the positioning buckle.

[0009] As an embodiment of the present invention, the positioning support plate also includes a second mounting portion, the middle portion of the transmission shaft is hinged to the second mounting portion, the positioning buckle extends in a horizontal direction, and the positioning buckle is driven to move left and right through the rotation of the gear detection fan wheel.

[0010] As an embodiment of the present invention, the gear inspection sector wheel includes a sector wheel entity, gear teeth, a spring fixing hole, a crankshaft rotation hole and a sector wheel rotation axis hole, the gear teeth are arranged at the bottom of the sector wheel entity, the tooth shape of the gear teeth is adapted to the shape of the pin of the lock core, the spring fixing hole is arranged on the left side of the sector wheel entity, the crankshaft rotation hole is arranged on the left side of the top of the sector wheel entity, and the sector wheel rotation axis hole is arranged on the sector wheel entity.

[0011] As an embodiment of the present invention, the positioning buckle includes a movable base plate, a turn button rail groove and a movable support point, the turn button rail groove is arranged on the movable base plate, the turn button rail groove and the turn button cooperate with each other, the movable support point is arranged on the movable base plate, and the movable support point is hinged to the transmission long axis.

[0012] As an embodiment of the present invention, the lock core includes a pin, a lock core stator sleeve and a rotating lock core body, the lock core stator sleeve is sleeved on the rotating lock core body, the pin is arranged on the rotating lock core body, the turning knob is connected to the rotating lock core body, and the positioning buckle is used to limit the turning knob.

[0013] Different from the prior art, the technical solution of the present application is arranged in the lock shell through a key tooth detection system, which includes a tooth detection sector wheel, a return spring, a transmission crankshaft, a positioning support plate, a positioning buckle and a transmission long shaft. During use, the gear teeth of the sector wheel complement the teeth of the corresponding key, and can gradually rotate as the key is gradually inserted into the lock hole. If the gear teeth of the sector wheel are not complementary to the key, the key teeth will be too large to be inserted; if the key teeth are too small, they cannot push the sector wheel to rotate, which is called "invalid teeth", both of which will affect the rotation of the sector wheel to the set position Only when the key satisfies the structure of the pin and the tooth-detecting sector wheel at the same time, the key is inserted into the keyhole, driving the tooth-detecting sector wheel to rotate, the tooth-detecting sector wheel drives the transmission crankshaft to move, the transmission crankshaft drives the transmission long shaft to move, the transmission crankshaft drives the positioning buckle to move, the positioning buckle releases the restriction on the turning button, and the key can rotate the lock core; in this way, a key tooth detection system is added through a mechanical structure, and the mechanical lock can be opened only when the structure of the pin and the tooth-detecting sector wheel is satisfied at the same time, thereby preventing it from being opened by a master key, increasing the safety of the lock, and improving the reliability of the mechanical lock.

[0014] The above-mentioned records related to the invention content are only an overview of the technical solution of the present application. In order to enable ordinary technicians in the field to more clearly understand the technical solution of the present application, and then implement it according to the text of the specification and the contents recorded in the drawings, and to make the above-mentioned purpose and other purposes, features and advantages of the present application easier to understand, the following is an explanation in combination with the specific implementation mode and drawings of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings are only used to illustrate the principles, implementation methods, applications, characteristics and effects of the specific embodiments of the present application and other related contents, and shall not be considered as limitations of the present application.

[0016] In the drawings of the specification: Figure 1 A partial front cross-sectional view of a mechanical lock capable of strengthening key teeth detection according to an embodiment of the present application; Figure 2 A side cross-sectional view of a mechanical lock capable of strengthening key teeth detection according to one embodiment of the present application; Figure 3 This is a structural schematic diagram of a key tooth detection system according to an embodiment of the present application; Figure 4 A side view of a key detection system according to an embodiment of the present application; Figure 5 This is a schematic structural diagram of a gear-detecting sector wheel according to an embodiment of the present application; Figure 6 This is a schematic diagram of the structure of a positioning buckle according to an embodiment of the present application; Figure 7A side view of a positioning buckle according to an embodiment of the present application; Figure 8 A cross-sectional view of a lock core according to an embodiment of the present application; Fig. 9 This is a schematic structural diagram of a lock core according to an embodiment of the present application.

[0017] The reference numerals in the above drawings are described as follows: 1. Lock core, 11. Pin, 12. Lock core stator sleeve, 13. Rotate the lock core body, 2. Lock shell, 3. Lock shell cover, 4. Lock and hang, 5. Lock bolt, 6. Turn the knob. 7. Detection key tooth system, 71. Detection gear sector wheel, 711. Sector wheel entity, 712. Gear teeth, 713. Spring fixing hole, 714. Crankshaft rotation hole, 715. Sector wheel rotation axis hole, 72. Return spring, 73. Transmission crankshaft, 74. Positioning support plate, 741. First mounting part, 742. Second mounting part, 75. Positioning buckle, 751. Movable bottom plate, 752. Turn button rail groove, 753. Moveable support point, 76. Transmission long shaft. DETAILED DESCRIPTION

[0018] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0019] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0020] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0021] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships may exist, for example, X and / or Y, which means: X exists, Y exists, and X and Y exist at the same time. In addition, the character " / " in this article generally indicates that the objects before and after are in a logical relationship of "or".

[0022] In the present application, terms such as “first” and “second” are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship of quantity, priority or sequence between these entities or operations.

[0023] Without further limitations, in this application, the words "include", "comprises", "has" or other similar expressions used in the sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those limited elements, but also other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0024] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than", "less than", "exceed" and the like are understood to exclude the number itself; expressions such as "above", "below", "within" and the like are understood to include the number itself. In addition, in the description of the embodiments of this application, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups", "multiple times", etc., unless otherwise clearly and specifically limited.

[0025] In the description of the embodiments of the present application, space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, and do not indicate or imply that the referred device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0026] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms such as "install", "connect", "connect", "fix", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For technicians in the technical field to which the present application belongs, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0027] According to some embodiments of the present application, please refer to Figures 1 to 9 The present embodiment relates to a mechanical lock capable of strengthening key detection, comprising a lock core 1, a lock shell 2, a lock shell cover 3, a lock hook 4, a lock bolt 5, a rotary knob 6 and a key detection system 7; the lock core 1 is arranged in the lock shell 2, the lock shell cover 3 is arranged on the lock shell 2, the lock hook 4 is connected to the lock shell 2, the lock bolt 5 is arranged in the lock shell 2 for locking the lock hook 4, the rotary knob 6 is connected to the lock core 1, the key detection system 7 is arranged in the lock shell 2, and the key detection system 7 is arranged relative to the lock core 1; In this embodiment, the structures of the lock housing 2, the lock housing upper cover 3, the lock hook 4, the lock bolt 5, and the knob 6 are conventional technical means. Specifically, the lock cylinder 1 is rotated by the key, and the lock cylinder 1 rotates the lock bolt 5, and finally the lock hook 4 is opened. The principle is a conventional technical means and will not be repeated here. The key tooth detection system 7 includes a tooth detection sector wheel 71, a return spring 72, a transmission crankshaft 73, a positioning support plate 74, a positioning buckle 75 and a transmission long shaft 76. The positioning support plate 74 is fixed on one side of the lock core 1, the tooth detection sector wheel 71 is hinged on the positioning support plate 74, the tooth detection sector wheel 71 is arranged relative to the ball 11 of the lock core 1, the tooth shape of the tooth detection sector wheel 71 is adapted to the shape of the ball 11 of the lock core 1, one end of the transmission crankshaft 73 is transmission-connected to the tooth detection sector wheel 71, the other end of the transmission crankshaft 73 is transmission-connected to the transmission long shaft 76, the transmission long shaft 76 is transmission-connected to the positioning buckle 75, the positioning buckle 75 is transmission-connected to the turning button 6, and the positioning buckle 75 is used to limit or release the rotation of the lock core 1 through the turning button 6.

[0028] In this embodiment, the lock core 1 rotates the lock bolt 5 through the knob 6, thereby opening the lock hook 4; and the key tooth detection system 7 mainly limits the rotation of the knob 6 through the positioning buckle 75, thereby limiting the rotation of the lock core 1. Only when the key can be inserted into the keyhole and the shape of the key is compatible with the shape of the tooth detection sector wheel 71, can the tooth detection sector wheel 71 be driven to rotate, thereby driving the positioning buckle 75 to release the restriction on the knob 6, and the key can rotate the lock core 1 to open the lock hook 4; the key teeth of the key and the pin 11 and the tooth detection sector wheel 71 of the lock core 1 need to be doubly unlocked.

[0029] In this embodiment, the positioning support plate 74 is a mounting frame structure.

[0030] In this embodiment, the pin 11 of the lock core 1 and the tooth detection sector wheel 71 are arranged relative to each other. Specifically, a groove is opened at the rotating lock core body 13 of the lock core 1 for placing the tooth detection sector wheel 71; the positioning buckle 75 is located in the lock shell 2, and there is space in the lock shell 2 for the positioning buckle 75 to move left and right. When the positioning buckle 75 is on the left side, the knob 6 is stuck and the knob 6 is prevented from rotating; when the positioning buckle 75 is on the right side, the knob 6 is released, and the lock core 1 can drive the knob 6 to rotate, thereby driving the movement of the lock bolt 5.

[0031] The structure of the positioning buckle 75 can be set according to the space inside the lock housing 2, as long as it can move left and right to limit the knob 6.

[0032] Through mechanical principles, different ways of testing the key teeth are carried out. If the test is qualified, the lock will be opened synchronously with the "pin 11 lock cylinder 1". If an unqualified key tooth is detected, the knob 6 of the lock cylinder 1 will be stuck. Even if the pin 11 of the spring lock cylinder 1 is matched with the "master key", the lock cylinder 1 cannot be turned to open the lock. This increases the difficulty of abnormal unlocking.

[0033] When the key teeth and the gear teeth 712 of the sector wheel can mesh and complement each other, the key teeth can push the sector wheel to rotate, and through the transmission system, the positioning buckle 75 reaches the set position, so that the lock core 1 can be transmitted, and the pins 11 are all aligned, and the lock can be easily unlocked. If the key teeth and the set gear teeth 712 of the sector wheel do not mesh and complement each other, the key will not be inserted or will slip, so that the positioning buckle 75 cannot reach the set position, and the rotation of the lock core 1 is prevented. In addition, the system is provided with a return spring 72, so that the initial position of the sector wheel is in the same state, which is conducive to orderly detection of each tooth.

[0034] It can gradually rotate as the key is gradually inserted into the lock hole. If the teeth 712 of the sector wheel are not complementary to the key, the key teeth will be too large to be inserted; if the key teeth are too small, they cannot push the sector wheel to rotate, which is called "invalid teeth". Both will affect the rotation of the sector wheel to the set position. Therefore, in order to prevent key counterfeiters from counterfeiting based on the teeth 712 of the sector wheel, "invalid teeth" can be reasonably used in the design to increase the difficulty of abnormal unlocking.

[0035] According to some embodiments of the present application, one end of the return spring 72 is optionally connected to the gear detection sector wheel 71, and the other end of the return spring 72 is connected to the positioning support plate 74. In this way, the return spring 72 is used to keep the initial normal state (when no key is inserted) on the gear detection sector wheel 71 in a spring-pressed state, and the gear detection sector wheel 71 is reset when not in use.

[0036] According to some embodiments of the present application, optionally, the positioning support plate 74 includes a first mounting portion 741, the gear-detecting sector wheel 71 is hinged to the first mounting portion 741, one end of the transmission crankshaft 73 is hinged to the left side of the gear-detecting sector wheel 71, the other end of the gear-detecting sector wheel 71 is hinged to the bottom of the transmission long shaft 76, and the top of the transmission long shaft 76 is hinged to the right side of the positioning buckle 75. In this way, it is convenient to install the gear-detecting sector wheel 71. The gear-detecting sector wheel 71 drives the movement of the transmission crankshaft 73, and finally drives the positioning buckle 75 to move left and right.

[0037] According to some embodiments of the present application, optionally, the positioning support plate 74 further includes a second mounting portion 742, the middle portion of the transmission shaft 76 is hinged to the second mounting portion 742, and the positioning buckle 75 extends in the horizontal direction, and the positioning buckle 75 is driven to move left and right by the rotation of the gear-detecting sector wheel 71. In this way, through the second mounting portion 742, it is convenient for the transmission shaft 76 to pull the positioning buckle 75 to the right, so that the positioning buckle 75 releases the restriction on the rotating knob 6.

[0038] According to some embodiments of the present application, optionally, Figure 5 As shown, the gear detection sector wheel 71 includes a sector wheel entity 711, gear teeth 712, a spring fixing hole 713, a crankshaft rotation hole 714, and a sector wheel rotation axis center hole 715. The gear teeth 712 are arranged at the bottom of the sector wheel entity 711. The tooth shape of the gear teeth 712 matches the shape of the pin 11 of the lock cylinder 1. The spring fixing hole 713 is arranged on the left side of the sector wheel entity 711. The crankshaft rotation hole 714 is arranged on the left side of the top of the sector wheel entity 711. The sector wheel rotation axis center hole 715 is arranged on the sector wheel entity 711. In this way, the shape of the gear bottom of the sector wheel entity 711 matches the shape of the key teeth of the key. The spring fixing hole 713 is used to fix the bottom of the return spring 72. The crankshaft rotation hole 714 is hinged to the bottom of the transmission crankshaft 73. The gear detection sector wheel 71 is hinged to the second mounting portion 742 through the sector wheel rotation axis center hole 715.

[0039] According to some embodiments of the present application, optionally, Figure 6 and Figure 7 As shown, the positioning buckle 75 includes a movable base plate 751, a knob track groove 752 and a movable support point 753. The knob track groove 752 is arranged on the movable base plate 751, the knob track groove 752 cooperates with the knob 6, the movable support point 753 is arranged on the movable base plate 751, and the movable support point 753 is hinged to the transmission long shaft 76.

[0040] In this embodiment, the structure of the knob rail groove 752 can be set according to actual conditions, as long as it can restrict the knob 6 or release the knob 6, it is within the protection scope of this embodiment, and the moving support point 753 is hinged to the top of the transmission shaft 76. In this way, it is convenient to move the positioning buckle 75.

[0041] According to some embodiments of the present application, optionally, Figure 8 and Fig. 9 As shown, the lock core 1 includes a pin 11, a lock core stator sleeve 12 and a rotating lock core body 13, the lock core stator sleeve 12 is sleeved on the rotating lock core body 13, the pin 11 is arranged on the rotating lock core body 13, the rotary knob 6 is connected to the rotating lock core body 13, and the positioning buckle 75 is used to limit the rotary knob 6. In this way, Since the gear detection sector wheel 71 needs to be in direct contact with the key teeth at the same time as the pin 11, the gear detection sector wheel 71 and the pin 11 need to be as close as possible, or the lock core 1 is reduced, the pin 11 groove is reduced, or the thickness of the key teeth is increased. In this embodiment, the lock core 1 is reduced, the pin 11 groove is reduced to bring the sector wheel and the pin 11 closer. Figure 8 As shown, at the preset position for installing the tooth detection sector wheel 71, the lock core stator sleeve 12 and half of the pin 11 groove are cut to install the tooth detection sector wheel 71, and the pin 11 and the pin 11 groove that conflict with it are reduced by half, so that the available space for abnormal unlocking is smaller and more difficult.

[0042] In addition, in order to install the enhanced detection key system 7, the lock core 1, the lock core 1 knob 6, the lock shell 2 structure, etc. involved have been changed to be adaptable and safe: the original lock core 1 is modified to be suitable for the fan-shaped wheel and the ball 11 groove to be installed in close proximity and the lock core 1 does not collide with the fan wheel when it rotates in one direction; when the key is inserted or pulled out, when the key contacts the ball 11, it can simultaneously contact the gear 712 of the fan wheel and turn the fan wheel to rotate. The knob 6 of the original lock core 1 is lengthened because a positioning buckle 75 is added between the lock core 1 and the lock bolt 5, so it needs to be lengthened. The newly added enhanced detection key system 7 can form a tight integration with the lock core 1 and can be assembled outside the shell, and the ball 11 slot is exposed, which has poor safety. Therefore, the newly designed lock shell 2 is a one-time fully enclosed sealing structure.

[0043] In this embodiment, an enhanced key tooth detection system 7 for detecting key teeth without the pin 11 is added on the basis of the original pin 11 padlock, and the lock can be opened only after the key teeth of the key can pass the pin 11 detection and the enhanced key tooth detection system 7 at the same time, and neither is indispensable.

[0044] In this embodiment, the enhanced key detection system 7 can also be conveniently applied to all types of pin 11 locks, and more obstacles to abnormal unlocking can be added to improve security.

[0045] Different from the prior art, the technical solution of the present application is arranged in the lock housing 2 through a key tooth detection system 7, which includes a tooth detection sector wheel 71, a return spring 72, a transmission crankshaft 73, a positioning support plate 74, a positioning buckle 75 and a transmission long shaft 76. During use, the gear teeth 712 of the sector wheel complement the teeth of the corresponding key and can gradually rotate as the key is gradually inserted into the lock hole. If the gear teeth 712 of the sector wheel do not complement the key, the key teeth will be too large to be inserted; if the key teeth are too small, they cannot push the sector wheel to rotate, which is called invalid teeth, and both will affect the rotation of the sector wheel to the set position; only When the key satisfies the structure of both the pin 11 and the tooth-detecting sector wheel 71, the key is inserted into the lock hole, driving the tooth-detecting sector wheel 71 to rotate, the tooth-detecting sector wheel 71 drives the transmission crankshaft 73 to move, the transmission crankshaft 73 drives the transmission long shaft 76 to move, the transmission crankshaft 73 drives the positioning buckle 75 to move, the positioning buckle 75 releases the restriction on the turning button 6, and the key can rotate the lock cylinder 1; in this way, a key tooth detection system 7 is added through a mechanical structure, and the mechanical lock can only be opened when the structure of the pin 11 and the tooth-detecting sector wheel 71 are satisfied at the same time, thereby preventing it from being opened by a master key, thereby increasing the safety of the lock and improving the reliability of the mechanical lock.

[0046] Those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present application and form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A mechanical lock capable of strengthening detection of key teeth, characterized in that: It includes a lock core, a lock shell, a lock shell cover, a lock hook, a lock bolt, a knob and a key tooth detection system; The lock core is arranged in the lock housing, the lock housing upper cover is arranged on the lock housing, the lock hook is connected to the lock housing, the lock bolt is arranged in the lock housing for locking the lock hook, the turning button is connected to the lock core, the detection key tooth system is arranged in the lock housing, and the detection key tooth system is arranged relative to the lock core; The key tooth detection system includes a tooth detection sector wheel, a return spring, a transmission crankshaft, a positioning support plate, a positioning buckle and a transmission long shaft. The positioning support plate is fixed on one side of the lock core, the tooth detection sector wheel is hinged on the positioning support plate, the tooth detection sector wheel is arranged relative to the pin of the lock core, the tooth shape of the tooth detection sector wheel is adapted to the shape of the pin of the lock core, one end of the transmission crankshaft is transmission-connected to the tooth detection sector wheel, the other end of the transmission crankshaft is transmission-connected to the transmission long shaft, the transmission long shaft is transmission-connected to the positioning buckle, the positioning buckle is transmission-connected to the turning knob, and the positioning buckle is used to limit or release the rotation of the lock core through the turning knob.

2. The mechanical lock capable of strengthening key detection according to claim 1, characterized in that: One end of the return spring is connected to the gear-detecting sector wheel, and the other end of the return spring is connected to the positioning support plate.

3. The mechanical lock capable of strengthening key detection according to claim 2, characterized in that: The positioning support plate includes a first mounting portion, the gear-detecting sector wheel is hinged to the first mounting portion, one end of the transmission crankshaft is hinged to the left side of the gear-detecting sector wheel, the other end of the gear-detecting sector wheel is hinged to the bottom of the transmission long shaft, and the top of the transmission long shaft is hinged to the right side of the positioning buckle.

4. The mechanical lock capable of strengthening key detection according to claim 3, characterized in that: The positioning support plate also includes a second mounting portion, the middle portion of the transmission shaft is hinged to the second mounting portion, and the positioning buckle extends in a horizontal direction, and the positioning buckle is driven to move left and right through the rotation of the gear detection sector wheel.

5. The mechanical lock capable of strengthening key detection according to claim 4, characterized in that: The gear-detecting sector wheel includes a sector wheel entity, gear teeth, a spring fixing hole, a crankshaft rotating hole and a sector wheel rotating axis center hole, the gear teeth are arranged at the bottom of the sector wheel entity, the tooth shape of the gear teeth is adapted to the shape of the pin of the lock core, the spring fixing hole is arranged on the left side of the sector wheel entity, the crankshaft rotating hole is arranged on the left side of the top of the sector wheel entity, and the sector wheel rotating axis center hole is arranged on the sector wheel entity.

6. The mechanical lock capable of strengthening key detection according to claim 1, characterized in that: The positioning buckle includes a movable base plate, a knob track groove and a movable support point. The knob track groove is arranged on the movable base plate, the knob track groove cooperates with the knob, the movable support point is arranged on the movable base plate, and the movable support point is hinged to the transmission long shaft.

7. The mechanical lock capable of strengthening key detection according to claim 1, characterized in that: The lock core includes a pin, a lock core stator sleeve and a rotating lock core body, the lock core stator sleeve is sleeved on the rotating lock core body, the pin is arranged on the rotating lock core body, the turning knob is connected to the rotating lock core body, and the positioning buckle is used to limit the turning knob.

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