Mechanical coded lock cylinder structure

Abstract

The utility model discloses a mechanical coded lock cylinder structure which comprises an upper cover and a lower cover arranged on the upper cover, a movable lock piece is arranged on the upper cover, a partition plate is arranged between the movable lock piece and the lower cover, a middle rotating core used for controlling the movable lock piece to return is arranged on the upper cover and the lower cover, and the partition plate is arranged on the middle rotating core. A plurality of rotating lock discs are arranged between the upper cover and the lower cover, each rotating lock disc is provided with a digital rotating disc, the middle rotating core can be started only after all codes of the digital rotating discs are matched correctly through the corresponding rotating lock discs, and when the codes of the digital rotating discs are matched disorderly through the corresponding rotating lock discs, the middle rotating core can be started only after the codes of the digital rotating discs are matched disorderly through the corresponding rotating lock discs. And the middle rotating core can be limited by the movable locking piece. The anti-theft lock is reasonable in design, greatly improves the anti-theft performance, and is more beneficial to meeting the requirement of modern users for pursuing high safety coefficients.

Description

Technical Field

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

[0002] Combination locks are known to use a series of numbers or symbols to open. Combination locks can be categorized as mechanical or digital. Some combination locks use a single dial to rotate several discs or cams inside the lock, while others use a set of numbered dials to directly activate the lock's internal mechanism. For example, the Chinese utility model patent with authorization announcement number CN211115214U discloses a mechanical password lock box, comprising: a lower cover, an upper cover, a push-pull rod and a rotary lock disk arranged between the lower cover and the upper cover; the inner top surface of the upper cover is provided with a push-pull rod groove, a plurality of rotary lock disk grooves evenly distributed around the push-pull rod groove, and a rotation zone groove located on the periphery below the push-pull rod groove; the main body of the push-pull rod groove is circular, with a first through hole provided in the center, and a limiting groove extending outward is connected to the position corresponding to each rotary lock disk groove around the main body, and a notch portion matching the limiting groove is provided on the edge of the rotary lock disk. When the limiting groove is aligned with the notch portion, the push-pull rod rotary disk can be pushed from the push-pull rod groove to the rotation zone groove to achieve rotation, thereby achieving unlocking. However, existing people, especially those with bad intentions, cannot use the feel method to rotate the lock disk to unlock the door, which makes the overall password lock core anti-theft performance poor and cannot meet the modern people's pursuit of good anti-theft performance requirements. Utility Model Content

[0003] (1) Technical issues that need to be resolved

[0004] In view of the deficiencies in the prior art, the present invention provides a mechanical password lock core structure, which has a reasonable design, greatly improves the anti-theft performance, and is more conducive to meeting the requirements of modern users for a high security factor.

[0005] (2) Technical solutions that need to be adopted

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A mechanical password lock core structure comprises an upper cover and a lower cover arranged on the upper cover, a movable lock element is arranged on the upper cover, a partition is arranged between the movable lock element and the lower cover, an intermediate rotating core for controlling the return of the movable lock element is arranged on the upper cover and the lower cover, and a plurality of rotating lock disks are arranged between the upper cover and the lower cover, each of the rotating lock disks is provided with a number dial, and the intermediate rotating core can only be started after the number dials are all correctly matched with the corresponding rotating lock disks, and when the number dials are disrupted after the matching with the corresponding rotating lock disks, the movable lock element will also restrict the intermediate rotating core.

[0008] Preferably, each of the rotating lock disks includes a rotating shaft and a disk body arranged on the rotating shaft, the disk body is provided with an anti-theft notch and an unlocking notch for fixing the rotation of the rotating lock disk, one end of the rotating shaft is provided with a spline groove for cooperating with the digital dial, the rotating shaft is provided with a fixing hole, a fixing part is installed in the fixing hole, and the rotating lock disk is fixed to the upper cover and the lower cover by the fixing part.

[0009] Preferably, the fixing holes are screw holes, and the fixing members are screws, and the screw holes are distributed axially along the rotation axis.

[0010] Preferably, there are nine anti-theft notches and only one unlocking notch, and the spline grooves are evenly distributed on the circumference of the end face of the rotating shaft.

[0011] Preferably, the rotating shaft at one end surface of the disc body is provided with positioning external teeth, and the positioning external teeth are integrally formed with the rotating shaft and the disc body.

[0012] Preferably, the movable lock member includes a movable lock plate which is arranged on the upper cover and can move back and forth, and the movable lock plate is provided with a mounting hole for the corresponding rotating lock disk to slide back and forth, and the movable lock plate at the position of the mounting hole is provided with an anti-theft protrusion which can engage with the unlocking notch or the anti-theft notch, and the movable lock plate is provided with a matching hole for allowing the intermediate rotating core to move and be restricted.

[0013] Preferably, the movable locking plate is provided with a contact foot, the contact foot is provided with a hanging point that can automatically return to the locked position, and the hanging point is installed with a return spring.

[0014] Preferably, the intermediate rotating core includes a rotating core that is rotatable and is arranged on the upper cover and the lower cover, and the rotating core is provided with an engaging notch that engages with the movable lock plate at the position of the matching hole, and both end faces of the rotating core are provided with switch notches.

[0015] Preferably, a top spring is provided on one end of the rotating core located on one side of the lower cover, and correspondingly, a mounting groove for mounting the top spring is provided on the lower cover.

[0016] Preferably, a spring slot cooperating with the positioning outer teeth is provided on the partition, a positioning spring is provided in the spring slot, and the positioning spring extends to engage with the positioning outer teeth in the rotating lock disk.

[0017] (3) Technical effects to be achieved

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] The lock mechanism of the present invention is simple and convenient to manufacture, and the ...

[0020] The lock plate is fixed to the upper cover and the lower cover by the fixing hole, and the fixing hole is fixed to the fixing hole, so that the locking plate can be fixed to the upper cover and the lower cover by the fixing hole.

[0021] Thirdly, the intermediate rotating core of the utility model includes a rotating core that is rotatable and is arranged on the upper cover and the lower cover. The rotating core is provided with an engaging notch that engages with the movable lock plate at the position of the matching hole. Both end faces of the rotating core are provided with switch notches. The intermediate rotating core with this arrangement is suitable for semi-automatic lock cylinders. When a top spring is provided on one end of the rotating core located on the side of the lower cover, correspondingly, a mounting groove for installing the top spring is provided on the lower cover. This type is suitable for use on fully automatic lock cylinders. Therefore, it can be seen that there are various types and a large range of choices, which can better meet the needs of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of a semi-automatic embodiment of the utility model.

[0023] Figure 2 for Figure 1 Cross-sectional view along the AA direction.

[0024] Figure 3 It is an overall schematic diagram of a semi-automatic embodiment of the present utility model.

[0025] Figure 4 This is a schematic diagram of the cooperation of the movable lock member, partition, rotating core and rotating lock disk of the utility model.

[0026] Figure 5 This is a schematic diagram of the cooperation among the movable lock element, the rotating core and the rotating lock disk of the utility model.

[0027] Figure 6 This is a schematic diagram of the structure of the movable lock of the utility model.

[0028] Figure 7 This is a schematic diagram of the partition structure of the utility model.

[0029] Figure 8 This is a structural diagram of the rotary lock disk of the utility model.

[0030] Figure 9 It is an overall schematic diagram of the rotary lock disk of the utility model.

[0031] Figure 10 This is a schematic diagram of the installation of the rotary lock disk and the digital dial of the utility model.

[0032] Figure 11 This is a schematic diagram of the structure of the intermediate rotating core of the present utility model.

[0033] Figure 12 This is an overall schematic diagram of the intermediate rotating core of the present utility model.

[0034] Figure 13 This is a schematic diagram of a fully automatic embodiment of the utility model.

[0035] Figure 14 It is an overall schematic diagram of a fully automatic embodiment of the utility model.

[0036] Figure 15 This is a schematic diagram of the top spring structure in the fully automatic embodiment of the utility model.

[0037] Figure 16 This is an overall schematic diagram of the top spring in the fully automatic embodiment of the utility model.

[0038] Figure 17 This is a schematic diagram of the upper cover structure of the utility model.

[0039] In the figure: 1, upper cover; 2, lower cover; 3, movable locking element; 4, partition; 5, middle rotating core; 6, rotating lock disk; 7, digital dial; 11, mounting seat; 12, alignment mark; 31, movable lock plate; 32, mounting hole; 33, anti-theft protrusion; 34, matching hole; 35, contact foot; 36, hanging point; 41, spring slot; 51, rotating core; 52, engaging notch; 53, switch notch; 54, top spring; 61, rotating shaft; 62, disk body; 63, anti-theft notch; 64, unlocking notch; 65, spline groove; 66, fixing hole; 67, positioning external tooth. DETAILED DESCRIPTION

[0040] In the description of this utility model, it should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element.

[0041] In the description of the present utility model, it should be noted that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present utility model. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. "Several" means one or more, unless otherwise clearly and specifically defined.

[0042] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0043] To make the objectives, technical solutions, and advantages of the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and examples. However, it should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the scope of the present invention. Furthermore, descriptions of known structures and technologies are omitted in the following description to avoid unnecessary confusion regarding the concepts of the present invention.

[0044] Example 1: See Figure 1 、 Figure 2 、 Figure 3 、 Figure 15 and Figure 16 , a mechanical password lock cylinder structure, including an upper cover 1 and a lower cover 2 arranged on the upper cover 1, a movable lock member 3 is provided on the upper cover 1, and a partition 4 is provided between the movable lock member 3 and the lower cover 2, an intermediate rotating core 5 for controlling the return of the movable lock member 3 is provided on the upper cover 1 and the lower cover 2, and a plurality of rotating lock disks 6 are provided between the upper cover 1 and the lower cover 2, each rotating lock disk 6 is provided with a digital dial 7, and the digital dial 7 is correctly matched with the corresponding rotating lock disk 6, and the intermediate rotating core 5 can be started, so that the intermediate rotating core 5 can open the lock cylinder, and it is in the unlocked state at this time. When the digital dial 7 is disrupted by the corresponding rotating lock disk 6, the movable lock member 3 will also restrict the intermediate rotating core 5, so that the intermediate rotating core 5 cannot open the lock cylinder, and it is in the locked state.

[0045] Example 2: It can be explained based on Example 1, as shown in Figure 4 、 Figure 5 、 Figure 8 、 Figure 9 and Figure 10As shown, each rotary lock disk 6 includes a rotating shaft 61 and a disk body 62 disposed on the rotating shaft 61. The disk body 62 is provided with an anti-theft notch 63 and an unlocking notch 64 for fixing the rotation of the rotary lock disk 6. A spline groove 65 for mating with the digital dial 7 is provided at one end of the rotating shaft 61. The rotating shaft 61 is provided with a fixing hole 66, and a fixing member is installed in the fixing hole 66. The rotary lock disk 6 is fixed to the upper cover 1 and the lower cover 2 through the fixing member. This arrangement is reasonable and simple in structure, which facilitates the rotation of the rotary lock disk 6 on the upper cover 1 and the lower cover 2. It is further explained that the fixing hole 66 is a screw hole, and the fixing member is a screw. The screw holes are distributed axially along the rotating shaft 61. This not only better fixes the rotary lock disk 6 to the lower cover 1 and the upper cover 2, but also simplifies the operation and facilitates installation and disassembly. It is further explained that the rotating shaft 61 and the disk body 62 are integrally formed, which greatly enhances the structural strength and reduces the occurrence of damage.

[0046] like Figure 4 、 Figure 5 、 Figure 8 、 Figure 9 and Figure 10 As shown, in this embodiment, there are nine anti-theft notches 63 and only one unlocking notch 64, and the spline grooves 65 are evenly spaced on the circumference of the end face of the rotating shaft 61. The spline grooves 65 arranged evenly spaced are more conducive to being installed together with the digital dial 7, and the rotation of the rotating shaft 61 is driven by the rotation of the digital dial 7.

[0047] like Figure 4 、 Figure 5 、 Figure 8 、 Figure 9 and Figure 10 As shown, in this embodiment, six rotating lock disks 6 are used. The number of such rotating lock disks 6 can be determined according to actual conditions.

[0048] like Figure 4 、 Figure 5 、 Figure 8 、 Figure 9 and Figure 10 As shown, the rotating shaft 61 at one end of the disk body 62 is provided with a positioning outer tooth 67. The positioning outer tooth 67 is integrally formed with the rotating shaft 61 and the disk body 62, which greatly enhances the structural strength and reduces the occurrence of damage.

[0049] Example 3: It can be explained based on Example 2, such as Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6As shown, the movable lock member 3 includes a movable lock plate 31 disposed on the upper cover 1 and movable back and forth. The movable lock plate 31 is provided with a mounting hole 32 for the corresponding rotating lock disk 6 to slide back and forth. The movable lock plate 31 is provided with an anti-theft protrusion 33 at the location of the mounting hole 32, which can engage with the unlocking notch 64 or the anti-theft notch 63. The movable lock plate 31 is provided with a matching hole 34 for allowing the intermediate rotating core 5 to move and restrict. In this way, the intermediate rotating core 5 can rotate in the matching hole 34 on the one hand, and on the other hand, after matching with the intermediate rotating core 5, it is locked and fixed to prevent the intermediate rotating core 5 from rotating. In this embodiment, six anti-theft protrusions 33 are used, each corresponding to a rotating lock disk 6. This design is reasonable and easy to implement.

[0050] like Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 As shown, further explanation is provided on the movable lock plate 31, and the movable lock plate 31 is provided with a contact 35, and the contact 35 is provided with a hanging point 36 that can automatically return to the locked position. The hanging point 36 is installed with a return spring, so that the movable lock plate 31 can automatically return to the locked position through the rebound force of the return spring. In this embodiment, the contact 35 is distributed in pairs, and each movable lock plate 31 is provided with a hanging point 36, and the corresponding hanging point 36 is installed with a hanging point 36. This arrangement is more conducive to the stable operation of the movable lock plate 31.

[0051] Example 4: It can be explained based on Example 3, as shown in FIG. Figure 11 and Figure 12 As shown, the intermediate rotating core 5 comprises a rotatable rotating core 51 mounted on the lower cover 1 and upper cover 2. The rotating core 51 is provided with an engaging notch 52 that engages with the movable lock plate 31 at the mating hole 34. Switching notches 53 are provided on both ends of the rotating core 51. In this embodiment, since multiple number dials 7 are used, six in this embodiment, each number dial 7 must be rotated to the locked position before it can be unlocked. This structure of the intermediate rotating core 5 is suitable for semi-automatic locks. Furthermore, the switching notches 53 are both in a "I" shape. One switch notch 53 can be used to unlock the lock with a screwdriver, while the other switch notch 53 is connected to the dial wheel on the lock body by a metal plate and also serves to unlock the lock. Furthermore, the rotating core 51 utilizes an eccentric shaft, which is more convenient to use. Finally, it should be emphasized that the engaging notch 52 is D-shaped, which facilitates the rotation of the rotating core 51 and its interaction with the movable lock plate 31.

[0052] like Figure 11 、 Figure 12 、 Figure 13 、 Figure 14 、 Figure 15 and Figure 16 As shown, a top spring 54 is provided on one end of the rotating core 51 located on one side of the lower cover 2. This arrangement is conducive to the rotating core 51 being able to move up and down. Correspondingly, a mounting groove for installing the top spring 54 is provided on the lower cover 2. This arrangement is reasonable and is more conducive to the back and forth movement of the rotating core 51. In the actual process, the rotating core 51 cooperates with the lock cylinder and the motor to achieve full automation. During use, the rotating core 51 is in an unlocked state. The rotating core 51 is pushed downward by about 3 mm, and then the rotating core 51 is rotated to achieve the purpose of unlocking (because the fully automatic lock cylinder has a motor, the motor can only be separated from the lock cylinder when the rotating core 51 is pushed downward by 3 mm, so as to achieve the purpose of unlocking. When the rotating core 51 returns to its original state without the action of external force, the motor in the fully automatic lock cylinder contacts the lock cylinder, so that it is in a locked state). In this embodiment, the top spring 54 has a height of 8.0 mm, an inner diameter of 12 mm to 12.3 mm, an outer diameter of 14 mm, three effective turns, and a wire diameter of 1.0 mm. This arrangement is reasonable and easy to implement, thereby enabling the rotating core 51 to move a distance of 2 mm to 3.5 mm to achieve the purpose of opening and closing the lock. This can adapt to the purpose of fully automatic operation.

[0053] Example 5: It can be described on the basis of Example 2, Example 3, or Example 4, as shown in FIG. Figure 7 As shown, a spring slot 41 is provided on the partition 4 to cooperate with the positioning outer tooth 67, and a positioning spring is provided in the spring slot 41. The positioning spring extends to engage with the positioning outer tooth 67 in the rotating lock disk 6. By setting the positioning spring and the positioning outer tooth 67, the digital dial 7 on the rotating lock disk 6 can be adjusted to achieve a pause every time a position is adjusted when the code is matched.

[0054] Example 6: This can be explained based on Example 1, Example 2, Example 3, or Example 4. Figure 17 As shown, the upper cover 1 is provided with a plurality of mounting seats 11, and the mounting seats 11 are provided with magnetic parts. Correspondingly, the lower cover 2 is provided with an adsorption part that cooperates with the magnetic parts. The upper cover 1 and the lower cover 2 can be more stably adsorbed together by cooperating with the magnetic parts and the adsorption part. In this embodiment, four mounting seats 11 are used to facilitate the connection between the upper cover 1 and the lower cover 2 to be more stably connected. The magnetic parts are magnets, and the adsorption parts are iron sheets, etc., which are easy to implement. Figure 1 、 Figure 2 and Figure 3As shown, the upper cover 1 is provided with an alignment mark 12 aligned with the mark of the number dial 7. In this embodiment, the alignment mark 12 adopts a ▽ mark (triangle mark), and the alignment mark 12 corresponds to the number dial 7. In this way, when it is necessary to unlock, the rotating lock disk 6 with the number dial 7 is first rotated. When the alignment mark 12 and the number dial 7 correspond one-to-one, each anti-theft protrusion 33 on the movable lock plate 31 will fall on the corresponding unlocking notch 64, so that the rotating core 51 can be rotated. The rotating core 51 is connected to the rotating throwing wheel of the lock body, and then can be rotated to achieve the purpose of unlocking.

[0055] The utility model includes a middle rotating core 5, which is rotatably mounted on the lower cover 1 and the upper cover 2. The rotating core 51 is provided with an engagement notch 52 that engages with the movable lock plate 31 at the matching hole 34. Both end surfaces of the rotating core 51 are provided with a switch notch 53. This is a suitable semi-automatic lock cylinder. The working principle of this switch lock is as follows:

[0056] When the lock is unlocked, the key ring 64 is unlocked and the key is unlocked.

[0057] Locking - When the unlocking numbers on the number dial 7 (six number dials 7 are used in this embodiment) are disrupted (that is, the unlocking numbers are not facing the alignment mark 12 (▽ mark) on the upper cover 1), the middle rotating core 5 of the D-shaped engaging notch 52 is twisted (rotated). At this time, the middle rotating core 5 drives the movable lock plate 31 to move downward (toward the force direction), and at the same time, the anti-theft protrusions 33 (six anti-theft protrusions 33 in this embodiment) on the movable lock plate 31 are pushed into the anti-theft notch 63 (also called the small notch groove for false unlocking) on ​​the rotating lock plate 31. At this time, because the movable lock plate 31 moves The travel distance is insufficient, so that the middle rotating core 5 cannot rotate further (cannot reach the rotation unlocking position), and at the same time, the anti-theft protrusion 33 (there are six anti-theft protrusions 33 in this embodiment) on the mobile lock plate 31 enters the anti-theft notch 63 (also called the small notch groove for false unlocking) in the rotating lock disk 6, so that the rotating lock disk 6 cannot rotate. At the same time, the digital dial 7 on the upper cover 1 cannot rotate either. At this time, it is achieved that a malicious person cannot use the method of feel to find the position of the unlocking notch 64 (also called unlocking notch) in the rotating lock disk 6, and at the same time, the security and anti-theft performance of the mechanical password lock core is improved, and the purpose of locking has been achieved.

[0058] To change the password, you only need to remove the fixings (screws) from the number dial 7 when the key is unlocked, that is, when the rotating core 51 can rotate, but the rotating lock disk 6 and the number dial 7 cannot rotate. Then, remove the number dial 7 and align it with the alignment mark 12 (▽ mark) on the upper cover 1. Then, install the number dial 7 on the rotating lock disk 6 through the fixings (screws) to complete the password change.

[0059] The utility model includes a rotating core 51 that is rotatable and is arranged on the lower cover 1 and the upper cover 2. The rotating core 51 is provided with an engaging notch 52 that engages with the movable lock plate 31 at the position of the matching hole 34. Both end surfaces of the rotating core 51 are provided with a switch notch 53, and a top spring 54 is provided on one end of the rotating core 51 on the side of the lower cover 2. This arrangement is conducive to realizing that the rotating core 51 can move up and down. Correspondingly, a mounting groove for mounting the top spring 54 is provided on the lower cover 2. This arrangement is reasonable and is more conducive to the back and forth movement of the rotating core 51. In actual operation, the rotating core 51 cooperates with the lock cylinder and the motor to achieve full automatic operation. During use, the rotating core 51 is in the unlocked state. The rotating core 51 is pushed downward by about 3mm and then rotated to achieve the purpose of unlocking (because the fully automatic lock cylinder has a motor, the rotating core 51 must be pushed downward by 3mm to allow the motor to disengage from the lock cylinder, so as to achieve the purpose of unlocking. When the rotating core 51 returns to its original state without the action of external force, the motor inside the fully automatic lock cylinder contacts the lock cylinder, so that it is in the locked state). In this embodiment, the top spring 54 has a height of 8.0mm, an inner diameter of 12mm to 12.3mm, an outer diameter of 14mm, an effective number of turns of 3, and a wire diameter of 1.0mm. This is suitable for fully automatic lock cylinders. When in use, it is only necessary to push the rotating core 51 inward, and the rotating core 51 will compress the top spring 54. Since the fully automatic lock core is equipped with a motor, the motor can be separated from the lock core only when the rotating core 51 is pushed downward, so as to achieve the purpose of unlocking. When the rotating core 51 returns to its original state without the action of external force, the motor inside the fully automatic lock core contacts the lock core, and the lock is in a locked state.

[0060] The standard parts used in this application document can all be purchased from the market. The specific connection methods of each part adopt conventional means such as mature bolts and rivets in the existing technology. The internal components of the motor all adopt conventional models in the existing technology, and its internal structure belongs to the existing technology structure. Workers can complete normal operation of it according to the existing technical manual. In addition, the circuit connection adopts the conventional connection method in the existing technology, and no detailed description is given here.

[0061] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection of the present utility model. Therefore, based on the innovative concept of the present utility model, changes and modifications to the embodiments described herein, or equivalent structural or process transformations made using the contents of the present utility model specification and drawings, and direct or indirect application of the above technical solutions to other related technical fields are all included in the scope of protection of the present utility model patent.

Claims

1. A mechanical password lock core structure, comprising an upper cover (1) and a lower cover (2) arranged on the upper cover (1), characterized in that: The upper cover (1) is provided with a movable lock (3), a partition (4) is provided between the movable lock (3) and the lower cover (2), an intermediate rotating core (5) for controlling the return of the movable lock (3) is provided on the upper cover (1) and the lower cover (2), and a plurality of rotating lock disks (6) are provided between the upper cover (1) and the lower cover (2), each of the rotating lock disks (6) is provided with a number dial (7), and the intermediate rotating core (5) can only be started after all the number dials (7) are correctly matched with the corresponding rotating lock disks (6), and when the number dials (7) are disrupted after the matching with the corresponding rotating lock disks (6), the movable lock (3) will also restrict the intermediate rotating core (5).

2. The mechanical code lock cylinder structure according to claim 1, characterized in that: Each of the rotating lock disks (6) comprises a rotating shaft (61) and a disk body (62) arranged on the rotating shaft (61); the disk body (62) is provided with an anti-theft notch (63) and an unlocking notch (64) for fixing the rotating lock disk (6) in rotation; one end of the rotating shaft (61) is provided with a spline groove (65) for matching with the digital dial (7); the rotating shaft (61) is provided with a fixing hole (66); a fixing piece is installed in the fixing hole (66); and the rotating lock disk (6) is fixed to the upper cover (1) and the lower cover (2) through the fixing piece.

3. The mechanical code lock cylinder structure according to claim 2, characterized in that: The fixing holes (66) are screw holes, and the fixing members are screws, and the screw holes are distributed axially along the rotating shaft (61).

4. The mechanical code lock cylinder structure according to claim 2 or 3, characterized in that: The number of the anti-theft notches (63) is nine, while the number of the unlocking notch (64) is one.

5. The mechanical code lock cylinder structure according to claim 2 or 3, characterized in that: The rotating shaft (61) at one end surface of the disc body (62) is provided with a positioning outer tooth (67), and the positioning outer tooth (67) is integrally formed with the rotating shaft (61) and the disc body (62).

6. The mechanical code lock cylinder structure according to claim 2 or 3, characterized in that: The movable lock member (3) comprises a movable lock plate (31) arranged on the upper cover (1) and movable back and forth, the movable lock plate (31) being provided with a mounting hole (32) for allowing the corresponding rotating lock disk (6) to slide back and forth, and the movable lock plate (31) being provided with an anti-theft protrusion (33) capable of engaging with the unlocking notch (64) or the anti-theft notch (63) at the position of the mounting hole (32), and a matching hole (34) for allowing the intermediate rotating core (5) to move and be restricted on the movable lock plate (31).

7. The mechanical code lock cylinder structure according to claim 6, characterized in that: The movable lock plate (31) is provided with a contact foot (35), the contact foot (35) is provided with a hanging point (36) capable of automatically returning to a locked position, and the hanging point (36) is installed with a return spring.

8. The mechanical code lock core structure according to claim 6, characterized in that: The intermediate rotating core (5) comprises a rotating core (51) arranged on the upper cover (1) and the lower cover (2) and capable of rotating. The rotating core (51) is provided with an engaging notch (52) engaging with the movable lock plate (31) at the position of the matching hole (34). Both end surfaces of the rotating core (51) are provided with switch notches (53).

9. The mechanical code lock core structure according to claim 8, characterized in that: A top spring (54) is provided on one end of the rotating core (51) located on one side of the lower cover (2), and correspondingly, the lower cover (2) is provided with a mounting groove for mounting the top spring (54).

10. The mechanical code lock core structure according to claim 6, characterized in that: The partition (4) is provided with a spring clamping groove (41) that matches the positioning outer tooth (67), and a positioning spring is provided in the spring clamping groove (41). The positioning spring extends to engage with the positioning outer tooth (67) in the rotating lock disk (6).

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