A mechanical and electrical dual-purpose lock cylinder

Abstract

The present invention relates to a mechanical and electrically controlled dual-purpose lock core, which belongs to the technical field of anti-theft locks. It comprises a lock core housing, an outer lock core, an inner lock core, an unlocking dial wheel, and an electrically controlled clutch mechanism. The outer lock core is movably mounted in an assembly hole at one end of the lock core housing, and the inner lock core is mounted inside the outer lock core. A locking mechanism is provided between the outer lock core and the inner lock core, and the outer lock core and the inner lock core are connected via the locking mechanism. A mechanical clutch mechanism is provided between the outer lock core and the inner lock core and the unlocking dial wheel, and the outer lock core and the inner lock core are connected to the unlocking dial wheel via the mechanical clutch mechanism, and the outer lock core is connected to the unlocking dial wheel via the electrically controlled clutch mechanism. The mechanical and electrically controlled dual-purpose lock core has the characteristics of simple structure and good practicality, and solves the problem that the existing lock core cannot be unlocked with a key and can also be electrically controlled to achieve keyless unlocking at the keyhole end, greatly improving convenience and increasing application value.

Description

Technical Field

[0001] The invention relates to a mechanical and electrically controlled dual-purpose lock core, belonging to the technical field of anti-theft locks. Background Art

[0002] Current lock cylinders, especially those for mortise locks that use a dial or gear to activate a mechanism inside the lock body to control the extension and retraction of the lock tongue, have a cylinder shell with a circular or gourd-shaped cross-section. They all have a double-layer structure with a cylinder shell and a lock core. The cylinder shell and the lock core are circumferentially locked by a pin structure, a blade structure, or a pin and blade composite structure. Inserting a matching key releases the circumferential lock, allowing the lock core to rotate within the cylinder shell, while simultaneously driving the dial or gear to rotate. The rotation of the dial or gear activates the mechanism inside the mortise lock body to control the extension and retraction of the lock tongue to unlock and lock. Depending on the application scenario, some have keys on both ends, while others have a key on one end and a knob or lever on the other. This type of lock cylinder is simple and reliable, but only has this single function. With the development of the times, this type of lock cylinder has many shortcomings in actual application. For example, it is not possible to unlock the lock with a mechanical key and to unlock the lock without a mechanical key through an electronically controlled clutch mechanism at the key end of the lock cylinder, so it is necessary to make improvements. Summary of the Invention

[0003] The object of the present invention is to provide a mechanical and electrical dual-purpose lock cylinder with a simple structure, which can be unlocked with a mechanical key and can also be unlocked without a mechanical key at the key end of the lock cylinder through an electronic control system.

[0004] The technical solution of the present invention is:

[0005] A mechanical and electrically controlled dual-purpose lock core comprises a lock core shell and an inner lock core; an unlocking dial wheel is movably provided at the assembly hole of the lock core shell, and is characterized in that an outer lock core is movably sleeved in the assembly hole at one end of the unlocking dial wheel of the lock core shell, and the inner lock core is sleeved in the outer lock core, a locking mechanism is provided between the outer lock core and the inner lock core, the outer lock core and the inner lock core are connected by the locking mechanism, the outer lock core and the inner lock core are connected to the unlocking dial wheel through a mechanical clutch mechanism, an electrically controlled clutch mechanism is installed in the assembly hole at the other end of the unlocking dial wheel of the lock core shell, and the electrically controlled clutch mechanism is connected to the unlocking dial wheel.

[0006] The unlocking dial is a hollow cylinder, and an inner flange is provided in the middle of the unlocking dial. The end surface of one end of the inner flange is evenly distributed with steel ball clamping grooves in a circumferential shape.

[0007] The outer locking core is a variable diameter tubular body, and an outer locking core slide groove is provided at one end of the outer locking core; a limiting ring groove is provided on the outer locking core on one side of the outer locking core slide groove, and a limiting slide groove is provided on the outer locking core on one side of the limiting ring groove, and a steel ball hole is provided on the outer locking core between the limiting ring groove and the outer locking core slide groove, and a clutch steel ball is installed in the steel ball hole; blade holes are symmetrically provided on the outer locking core at both ends of the limiting slide groove.

[0008] The inner lock core is a reducer, and a flat steel ball shift block is provided at one end of the inner lock core. The flat surface of the steel ball shift block is arc-shaped, and a plurality of blade assembly holes are arranged in parallel on the circumferential surface of the inner lock core. Blades are installed in the blade assembly holes through leaf springs. A circumferential lock is formed between the outer lock core and the inner lock core through the blades and the leaf springs. A limited assembly pin is provided on the inner lock core on the side below the blade assembly hole. A circumferential limit is formed between the outer lock core and the inner lock core through the cooperation of a limiting slide groove and a limiting assembly pin. A keyhole is provided at the other end of the inner lock core.

[0009] The locking mechanism is composed of a leaf spring, a leaf installed in the leaf assembly hole of the inner lock core, and a leaf hole provided on the outer lock core. The outer lock core and the inner lock core are connected by the cooperation of the leaf and the leaf hole.

[0010] The mechanical clutch mechanism consists of a clutch steel ball, a steel ball hole arranged on the outer lock core and a steel ball shift block arranged on the inner lock core. The outer lock core is engaged with the unlocking dial wheel through the clutch steel ball, and the steel ball shift block is in contact with the clutch steel ball.

[0011] The unlocking dial is a hollow cylinder, with an inner flange provided in the middle of the unlocking dial, clutch rod slots symmetrically provided on the end surface circumference of one side of the inner flange, and a raised shift block provided at the bottom of the unlocking dial.

[0012] The outer locking gallbladder is a tubular body, and an outer flange is provided at one end of the outer locking gallbladder; blade holes are symmetrically provided on the circumference of the outer locking gallbladder inside the outer flange, and a positioning pin sliding hole is axially provided on the circumference of the other end of the outer locking gallbladder, and an outer locking gallbladder ring groove is provided on the circumference of the outer locking gallbladder between the blade hole and the positioning pin sliding hole, and a C-shaped retaining spring A is installed in the outer locking gallbladder ring groove.

[0013] The inner lock core is a cylinder, and a keyhole is provided at one end of the inner lock core; a plurality of blade assembly holes are provided on the circumference of the inner lock core corresponding to the keyhole, and blades are installed in the blade assembly holes through leaf springs; an inner lock core ring groove is provided on the circumference of the end head of the other end of the inner lock core, and a C-shaped retaining spring B is installed in the inner lock core ring groove.

[0014] A mounting countersunk hole is axially arranged on the inner lock core corresponding to the inner lock core ring groove, and a positioning pin spiral hole is spirally arranged on the circumference of the inner lock core corresponding to the mounting countersunk hole, and the positioning pin spiral hole is connected to the mounting countersunk hole.

[0015] The electronically controlled clutch mechanism comprises a motor mount, an electric motor, a push rod, a rotating rod, a push rod spring, and a clutch block. The motor is fixedly mounted within the motor mount via a stepped center hole. A rotating rod is mounted on the motor's rotating shaft, and a push rod is movably mounted on the rotating rod. The push rod's end is attached to the clutch block via an annular groove and a retaining spring in the clutch block. The clutch block is symmetrically circumferentially provided with protrusions corresponding in shape to the clutch block's grooves. The push rod engages with the clutch block groove of the unlocking dial through the clutch block.

[0016] The mechanical clutch mechanism is composed of a clutch rod, a positioning pin spiral hole, a positioning pin sliding hole and a clutch rod slot. The clutch rod is a variable diameter cylinder. A positioning pin is threadedly installed on the circumference of the small diameter end of the clutch rod. The clutch rod is movably connected to the inner lock core and the outer lock core through the cooperation of the positioning pin, the positioning pin spiral hole and the positioning pin sliding hole. A card block is symmetrically provided on the circumference of the large diameter end of the clutch rod. The clutch rod is movably engaged with the unlocking dial wheel through the cooperation of the card block and the clutch rod slot; a clutch rod slide groove is provided on the clutch rod on one side of the card block; the clutch rod is slidably connected to the clutch block of the electronically controlled clutch mechanism through the clutch rod slide groove.

[0017] The beneficial effects of the present invention are:

[0018] This mechanical and electrically controlled dual-purpose lock cylinder is simple and practical. A mechanical key can be inserted into the inner lock cylinder to release the lock between the inner and outer lock cylinders and then unlocked through a mechanical clutch mechanism. It can also be unlocked without a key at the key end through an electronic control system. This mechanical and electrically controlled dual-purpose lock cylinder is suitable for lock cylinders used in mortise lock bodies, which greatly improves convenience and increases application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the assembly and decomposition of the outer lock core and the inner lock core of Example 1 of the present invention;

[0020] Figure 2 Schematic diagram of the cross-sectional structure of the unlocking dial wheel according to embodiment 1 of the present invention;

[0021] Figure 3 for Figure 2 Schematic diagram of the right view structure;

[0022] Figure 4 This is a schematic structural diagram of the outer locking core of Example 1 of the present invention;

[0023] Figure 5 This is a schematic structural diagram of the inner locking liner of Example 1 of the present invention;

[0024] Figure 6 This is an exploded schematic diagram of Example 1 of the present invention;

[0025] Figure 7 This is a left side view of the clutch block of Example 1 of the present invention.

[0026] Figure 8 This is a schematic diagram of the locked state of Example 1 of the present invention.

[0027] Figure 9 This is a schematic diagram of the assembly and decomposition of the outer lock core and the inner lock core of Example 2 of the present invention;

[0028] Figure 10 Schematic diagram of the cross-sectional structure of the unlocking dial wheel according to embodiment 2 of the present invention;

[0029] Figure 11 for Figure 10 Schematic diagram of the right view structure;

[0030] Figure 12 This is a schematic structural diagram of the outer locking liner of Example 2 of the present invention;

[0031] Figure 13 This is a schematic structural diagram of the inner locking core of Example 2 of the present invention.

[0032] Figure 14 This is a schematic structural diagram of a clutch lever according to embodiment 2 of the present invention;

[0033] Figure 15 This is a left side view of the improved clutch block of Example 2 of the present invention.

[0034] Figure 16 This is an exploded schematic diagram of Example 2 of the present invention;

[0035] Figure 17 This is a schematic diagram of the locked state of Example 2 of the present invention.

[0036] Figure 18 It is a structural schematic diagram of the push rod of the electronically controlled clutch mechanism of the present invention;

[0037] Figure 19 It is a structural schematic diagram of the clutch block of the electronically controlled clutch mechanism;

[0038] Figure 20 This is a schematic diagram of the assembly of the push rod spring of the electronically controlled clutch mechanism.

[0039] In the figure: 1, lock core shell, 2, outer lock core, 3, inner lock core, 4, unlocking dial, 5, inner flange, 6, dial block, 7, clutch block slot, 8, clutch rod slot, 9, outer flange, 10, blade hole, 11, positioning pin slide hole, 12, outer lock core ring groove, 13, C-type retaining spring A, 14, keyhole, 15, blade assembly hole, 16, blade spring, 17, blade, 18, inner lock core ring groove, 19, C-type retaining spring B, 20, positioning pin spiral hole, 21, motor fixing part, 22, motor, 2 3. Push rod, 24. Rotating rod, 25. Push rod spring, 26. Clutch block, 27. Lever, 28. Ear plate, 29. Assembly ring, 30. Bump, 31. Clutch rod, 32. Locating pin, 33. Block, 34. Clutch rod slide, 35. Positioning C-shaped slot, 36. Key; 37. Steel ball slot, 38. Limit pin, 39. External lock core slide, 40. Limit ring groove, 41. Limit slide, 42. Steel ball hole, 43. Clutch steel ball, 44. Steel ball shift block, 45. Limit assembly pin. DETAILED DESCRIPTION

[0040] Example 1

[0041] The mechanical and electrically controlled dual-purpose lock cylinder includes a lock cylinder shell 1, an outer lock core 2, an inner lock core 3 and an unlocking dial wheel 4. The unlocking dial wheel 4 (equivalent to a gear) is movably provided at the assembly hole of the lock cylinder shell 1. The unlocking dial wheel 4 is tubular, and a protruding dial block 6 is provided at the bottom of the unlocking dial wheel 4. An inner flange 5 is provided in the middle of the unlocking dial wheel 4, and steel ball clamping grooves 37 are evenly distributed in a circular shape on the inner wall of the unlocking dial wheel 4 at one end of the inner flange 5.

[0042] The outer lock core 2 and the inner lock core 3 are sequentially installed in the assembly hole at one end of the unlocking dial wheel 4 of the lock core shell 1. The outer lock core 2 is a variable diameter tubular body, and an outer lock core slide groove 39 is radially provided at one end of the outer lock core 2. During assembly, the outer lock core 2 is inserted from the assembly hole at one end of the lock core shell 1 to extend into the unlocking dial wheel 4. A limiting ring groove 40 is provided on the outer lock core 2 on one side of the outer lock core slide groove 39, and a limiting slide groove 41 is provided on the outer lock core 2 on one side of the limiting ring groove 40. Steel ball holes 42 are symmetrically provided on the outer lock core 2 between the limiting ring groove 40 and the outer lock core slide groove 39. The steel ball holes 42 are through holes, and clutch steel balls 43 are installed in the steel ball holes 42. Blade holes 10 are symmetrically provided on the outer lock core 2 at both ends of the limiting slide groove 41.

[0043] The inner locking core 3 is a reducer, with a flat steel ball block 44 at its end. The flat surface of the block 44 is curved. During assembly, the block 44 contacts and engages the clutch steel ball 43 within the ball hole 42. In the non-operating state, the flat surface of the block 44 acts as a support for the clutch steel ball 43, preventing it from escaping from the ball hole 42. Multiple blade mounting holes 15 are arranged in parallel on the circumference of the inner locking core 3. Blades 17 of varying heights are mounted within these holes via leaf springs 16. These blades 17 and leaf springs 16 create a circumferential lock between the outer locking core 2 and the inner locking core 3. A limiting mounting pin 45 is provided on the inner locking core 3 below the blade mounting holes 15. A limiting groove 41 and the limiting mounting pin 45 cooperate to create a circumferential limit between the outer locking core 2 and the inner locking core 3, limiting the rotational angle of the inner locking core 3. The other end of the inner lock core 3 is provided with a keyhole 14.

[0044] Under the action of the leaf spring 16, the end of the leaf 17 is inserted into the leaf hole 10 of the outer lock core 2 to realize the circumferential locking of the outer lock core 2 and the inner lock core 3. The assembly structure of the outer lock core 2 and the inner lock core 3 is the same as the assembly relationship of the existing leaf lock core. Without inserting the key 36, the leaf 17, under the action of the leaf spring 16, locks the outer lock core 2 and the inner lock core 3 into one circumference. The outer lock core 2 and the inner lock core 3 rotate synchronously in the assembly hole of the lock core shell 1. After the key 36 is inserted into the keyhole 14 of the inner lock core 3, the leaf 1 is locked. 7 retracts the inner lock core 3 to release the circumferential locking state of the outer lock core 2 and the inner lock core 3, and the inner lock core 3 can rotate inside the outer lock core 2. When the inner lock core 3 and the outer lock core 2 are rotated 90 degrees relative to each other, the steel ball shift block 44 provided at the end of the inner lock core 3 will push out and support the clutch steel ball 43, so that half of the clutch steel ball 43 enters the steel ball slot 37 of the unlocking dial 4. At this time, the outer lock core 2 is in a mechanical interlocking connection state with the unlocking dial 4 through the clutch steel ball 43. Rotating the outer lock core 2 can drive the unlocking dial 4 to rotate to achieve unlocking and locking.

[0045] This mechanical and electrically controlled dual-purpose lock cylinder is suitable for use with mortise locks, where a dial or gear is used to control the extension and retraction of the lock tongue to open and close the lock. The outer lock cylinder 2 can rotate freely within the lock cylinder housing 1, but the inner lock cylinder 3 cannot rotate within the outer lock cylinder 2 unless the key 36 is inserted. During use, after the circumferential lock between the outer lock cylinder 2 and the inner lock cylinder 3 is released by inserting the key 36, the mechanical clutch mechanism is controlled to achieve mechanical unlocking. Specifically,

[0046] The mechanical and electrically controlled dual-purpose lock cylinder is composed of a steel ball hole 42 provided on the outer lock core 2, a clutch steel ball 43 in the steel ball hole 42, and a steel ball shift block 44 on the inner lock core 3, which together form a mechanical clutch mechanism. The outer lock core 2 is engaged with the unlocking dial 4 via the clutch steel ball 43, and the steel ball shift block 44 is in contact with the clutch steel ball 43. When mechanically unlocking, the key 36 is inserted into the keyhole 14. The key 36 presses the blade 17, causing the blade 17 to retract into the inner lock core 3, releasing the circumferential lock between the inner lock core 3 and the outer lock core 2. The key 36 is turned, thereby driving the inner lock core 3 to rotate within the outer lock core 2. When the inner lock core 3 and the outer lock core 2 rotate 90 degrees relative to each other, the steel ball shift block 44 provided at the end of the inner lock core 3 will push out and support the clutch steel ball 43, causing half of the clutch steel ball 43 to enter the steel ball slot 37 of the unlocking dial 4, allowing the outer lock core 2 to pass through. The clutch steel ball 43 forms a connection with the unlocking dial 4. At this time, rotating the outer lock core 2 drives the unlocking dial 4 to rotate, and the shifting block 6 of the unlocking dial 4 can shift the mechanism inside the lock body to control the lock bolt, causing the extended lock bolt to retract into the lock body to achieve mechanical unlocking. After unlocking is completed, the key 36 is rotated in the opposite direction and withdrawn from the keyhole. The inner and outer lock cores are locked again, and the clutch steel ball 43 falls back into the steel ball hole 42, separating the previously formed connection and returning to the initial state of the outer lock core idling. In the initial state, due to the action of gravity, the clutch steel ball 43 will also enter the steel ball retaining groove 37 of the unlocking dial 4. However, due to the lack of the support of the steel ball shifting block 44, when the outer lock core 2 rotates, the clutch steel ball 43 is squeezed by the arc surface of the steel ball retaining groove 37 and retracts into the steel ball hole 42, and the outer lock core 2 and the unlocking dial are no longer connected together.

[0047] The electrically controlled clutch mechanism of this mechanically and electrically controlled dual-purpose lock cylinder is mounted on the other end of the lock cylinder housing 1. A clutch block slot 7 is also provided on the inner wall of the assembly hole at the other end of the inner flange 5 of the unlocking dial 4. The electrically controlled clutch mechanism comprises a motor mount 21, a motor 22, a push rod 23, a rotating rod 24, a push rod spring 25, and a clutch block 26. The motor mount 21 is a variable diameter tubular body with a stepped center hole. The motor 22 is fixedly mounted in the motor mount 21 through the stepped center hole. The motor mount 21 is provided with a positioning hole. The motor mount 21 and the lock cylinder housing 1 are fixedly connected by a limit pin 38 that cooperates with the positioning hole, thereby securing the motor mount 21 within the assembly hole of the lock cylinder housing 1.

[0048] A rotating rod 24 is mounted on the rotating shaft of the motor 22. A shift lever 27 is radially mounted on the rotating rod 24. A push rod 23 is movably mounted on the rotating rod 24. The push rod 23 is a variable diameter cylindrical rod with an annular clutch groove located on its front circumference. A clutch block 26 is mounted to the end of the push rod 23 via the clutch groove and a retaining spring. The clutch block 26 is axially constrained by the clutch groove and retaining spring. The clutch block 26 is rotatable around the end of the push rod 23. Lugs 28 are symmetrically mounted on the rear end of the push rod 23. Lugs 28 are connected by a mounting ring 29. A push rod spring 25 is mounted between the lugs 28 on one side of the mounting ring 29. The push rod spring 25 is mounted on the rotating rod 24 and connected to the lugs 28 of the push rod 23. The clutch block 26 is annular in shape. Lugs 30 corresponding in shape to the clutch groove 7 are symmetrically mounted on the circumference of the clutch block 26. The push rod 23 is engaged with the clutch block slot 7 of the unlocking dial wheel 4 through the clutch block 26 . When the push rod 23 is assembled, the push rod spring 25 is sleeved on the rotating rod 24, and the rotating rod 24 is inserted into the assembly ring 29 of the push rod 23, passes through the push rod spring 25 and is inserted into the hollow area at the back. The push rod spring 25 is sleeved on the rotating rod 24, and the end of the push rod 27 on the rotating rod 24 extends from the gap in the middle part of the push rod spring 25 to the outer end of the push rod spring 25. When the motor 22 is energized, the motor shaft drives the rotating rod 24 to rotate, and the push rod 27 set on the rotating rod 24 compresses (pushes) the push rod spring 25 layer by layer (turn). (Because the motor fixing part 21 is provided with a limiting groove that cooperates with the ear plate 28, the push rod 23 can only move axially and cannot rotate in a circle). The push rod 23 moves axially on the rotating rod 24 under the push of the push rod spring 25, thereby driving the clutch block 26 to move axially and engage with the clutch block slot 7 of the unlocking dial wheel 4.

[0049] When unlocking, the electric clutch mechanism starts the motor 22 when the system is powered on, and the motor 22 rotates forward, and the motor shaft drives the rotating rod 24 to rotate. During the rotation of the rotating rod 24, the push rod 27 set on the rotating rod 24 presses the push rod spring 25 along the gap of the push rod spring 25 one circle at a time. The push rod spring 25 pushes the push rod 23 forward toward the unlocking dial wheel 14, so that the clutch block 26 at the end of the push rod 23 enters the clutch block slot 7 of the unlocking dial wheel 4. The outer lock core 2 forms a chimeric connection with the unlocking dial wheel 4 through the clutch block 26. Since the clutch block 26 is always located in the outer lock core slide groove 39, the process of the push rod 23 driving the clutch block 26 forward is also a process of the clutch block 26 moving in the outer lock core slide groove 3 9 (the clutch block 26 is always located in the outer lock core slide groove 39), when the outer lock core 2 is engaged with the unlocking dial wheel 4 through the clutch block 26 to form a connected body, the outer lock core 2 is rotated to drive the unlocking dial wheel 4 to rotate, and the dial block 6 of the unlocking dial wheel 4 can move the mechanism inside the lock body to control the lock tongue, so that the extended lock tongue is retracted into the lock body to achieve unlocking. After unlocking is completed, the motor 22 rotates in the opposite direction, and the clutch block 26 is withdrawn from the clutch block slot 7. The previously formed connected body is separated and returns to the initial state of the outer lock core idling.

[0050] This mechanical and electrically controlled dual-purpose lock core has the characteristics of simple structure and good practicality. It solves the problem that the existing lock core cannot be unlocked with a mechanical key or by an electrically controlled keyless unlocking, greatly improves the convenience and increases the application value. The electric motor 22 can also use a reciprocating electromagnet or a swinging electromagnet, and the push rod 23 can be relatively improved so that it can drive the clutch block 26 to make axial movement.

[0051] Example 2

[0052] The mechanical and electrically controlled dual-purpose lock cylinder includes a lock cylinder shell 1, an outer lock core 2, an inner lock core 3, and an unlocking dial wheel 4. The unlocking dial wheel 4 (equivalent to a gear) is movably provided at the assembly hole of the lock cylinder shell 1, and a positioning C-shaped through groove 35 is provided on the lock cylinder shell 1 on one side of the unlocking dial wheel 4; the unlocking dial wheel 4 is a hollow cylinder, and an inner flange 5 is provided in the middle part of the unlocking dial wheel 4, and a clutch rod slot 8 is symmetrically provided on the end surface circumference of the other side of the inner flange 5, and a protruding dial block 6 is provided at the bottom of the unlocking dial wheel 4.

[0053] The outer lock core 2 and the inner lock core 3 are sequentially installed in the assembly hole on one side of the unlocking dial wheel 4 of the lock core shell 1. The outer lock core 2 is a tubular body, and an outer flange 9 is provided at one end of the outer lock core 2; blade holes 10 are symmetrically provided on the circumference of the outer lock core 2 on the inner side of the outer flange 9, and a positioning pin sliding hole 11 is axially provided on the circumference of the other end of the outer lock core 2. An outer lock core ring groove 12 is provided on the circumference of the outer lock core 2 between the blade hole 10 and the positioning pin sliding hole 11, and a C-shaped retaining spring A13 is installed in the outer lock core ring groove 12.

[0054] The inner lock core 3 is cylindrical, with a keyhole 14 at one end. Corresponding to the keyhole, multiple blade mounting holes 15 are arranged around the inner lock core 3's circumference. Blades 17 are mounted within these holes via leaf springs 16. A ring groove 18 is arranged around the other end of the inner lock core 3, with a C-shaped retaining ring B19 mounted within it. A mounting countersunk hole (not shown) is axially provided on the inner lock core 3 corresponding to the groove 18. A locating pin spiral hole 20 is spirally provided around the inner lock core 3 corresponding to the mounting countersunk hole, communicating with the mounting countersunk hole. The inner lock core 3 and outer lock core 2 are connected to the unlocking dial 4 via a mechanical clutch mechanism. The mechanical clutch mechanism consists of a clutch rod 31, a locating pin spiral hole 20, a locating pin sliding hole 11 and a clutch rod slot 8. The clutch rod 31 is a variable diameter cylinder. A locating pin 32 is threadedly installed on the circumference of the small diameter end of the clutch rod 31. The clutch rod 31 is movably connected to the inner lock core 3 and the outer lock core 2 through the cooperation of the locating pin 32, the locating pin spiral hole 20 and the locating pin sliding hole 11. A clamping block 33 is symmetrically provided on the circumference of the large diameter end of the clutch rod 31. The clutch rod 31 is movably engaged with the unlocking dial wheel 4 through the cooperation of the clamping block 33 and the clutch rod slot 8; a clutch rod slide groove 34 is provided on the clutch rod 21 on one side of the clamping block 33.

[0055] When assembling the outer lock core 2, the inner lock core 3, and the clutch rod 31, first complete the assembly between the outer lock core 2 and the inner lock core 3 through the leaf spring 16 and the leaf 17 (consistent with the assembly principle of the existing lock shell and lock core), then insert the small diameter end of the clutch rod 31 into the mounting countersunk hole of the inner lock core 3, and then pass the locating pin 32 through the locating pin sliding hole 11 and the locating pin spiral hole 20 to be threadedly connected to the assembly hole of the clutch rod 31. At the same time, the C-type retaining ring B19 is installed in the inner lock core ring groove 18 to cooperate with the locating pin 32 to realize the assembly between the outer lock core 2, the inner lock core 3 and the clutch rod 31. The upper end surface of the locating pin 32 is flush with the top of the locating pin sliding hole 11, so that the outer lock core 2 can rotate smoothly in the assembly hole of the lock core shell 1 during operation.

[0056] After the above assembly is completed, it is installed as a whole into the assembly hole of the lock core shell 1, and at the same time, the C-shaped retaining spring A13 is pressed into the outer lock core ring groove 12 through the positioning C-shaped through groove 35; because the C-shaped retaining spring A13 is convex on the outer lock core 2, it cooperates with the positioning C-shaped through groove 35 to realize the axial positioning of the outer lock core 2 in the assembly hole, so that the outer lock core 2 can only rotate circumferentially in the assembly hole and cannot move axially. This mechanical and electrically controlled dual-purpose lock core is suitable for a lock core for a plug-in lock body that uses a dial wheel or gear to move the mechanism inside the lock body to control the extension and retraction of the lock tongue to realize opening and closing. The outer lock core 2 can rotate freely in the lock core shell 1, and the inner lock core 3 cannot rotate in the outer lock core 2 when the key 36 is not inserted. After releasing the circumferential lock between the outer lock core 2 and the inner lock core 3 by inserting the key 36, the mechanical clutch mechanism is controlled to realize mechanical unlocking, specifically:

[0057] The key 36 is inserted into the keyhole 14, and the key 36 presses the blade 17, so that the blade 17 retracts into the inner lock core 3, and the circumferential lock between the inner lock core 3 and the outer lock core 2 is released. The key 36 is turned, thereby driving the inner lock core 3 to rotate in the outer lock core 2. When the inner lock core 3 and the outer lock core 2 rotate relative to each other, the clutch rod 31 is pushed axially outward through the locating pin spiral hole 20 through the locating pin 32. In this process, the locating pin 32 slides axially in the locating pin sliding hole 11. During the axial extension of the clutch rod 31, the card block 33 enters the clutch rod card slot 8 to form a lock with the unlocking dial wheel. 4 is in a state of movable interlocking connection; thereby, the clutch rod 31 and the unlocking dial wheel 4 form a connected body, and at this time, the outer lock core 2 rotates in the circumferential direction, driving the positioning pin 32 through the positioning pin sliding hole 11, and then driving the unlocking dial wheel 4 to rotate through the clamping block 33. The shifting block 6 of the unlocking dial wheel 4 can shift the mechanism inside the lock body to control the lock tongue, so that the extended lock tongue is retracted into the lock body to realize mechanical unlocking. After unlocking is completed, the key 36 is rotated in the opposite direction and withdrawn from the keyhole, the inner lock core and the outer lock core are locked again, and the clutch rod 31 is reset, returning to the initial state of the outer lock core idling.

[0058] The electrically controlled clutch mechanism of this mechanically and electrically controlled dual-purpose lock cylinder is mounted on the other end of the lock cylinder housing 1. A clutch block slot 7 is also provided on the inner wall of the assembly hole at the other end of the inner flange 5 of the unlocking dial 4. The electrically controlled clutch mechanism comprises a motor mount 21, a motor 22, a push rod 23, a rotating rod 24, a push rod spring 25, and a clutch block 26. The motor mount 21 is a variable diameter tubular body with a stepped center hole. The motor 22 is fixedly mounted in the motor mount 9 through the stepped center hole. The motor mount 21 is provided with a positioning hole. The motor mount 21 and the lock cylinder housing 1 are fixedly connected by a fastening screw that cooperates with the positioning hole, thereby securing the motor mount 21 within the assembly hole of the lock cylinder housing 1.

[0059] A rotating rod 24 is mounted on the rotating shaft of the motor 22. A lever 27 is radially mounted on the rotating rod 24. A push rod 23 is movably mounted on the rotating rod 24. The push rod 23 is a variable diameter cylindrical rod with an annular retaining groove around its front end. Lugs 28 are symmetrically mounted on its rear end. These lugs 28 are connected by a mounting ring 29. A push rod spring 25 is mounted between the lugs 28 on one side of the mounting ring 29. The push rod spring 25 is sleeved onto the rotating rod 24 and connected to the lugs 28 of the push rod 23. A clutch block 26 is mounted on the end of the push rod 23. This clutch block 26 is restrained by an annular retaining groove and a retaining spring. The clutch block 26 is annular and symmetrically mounted with protrusions 30 corresponding in shape to the clutch block retaining groove 7. The push rod 23 engages with the clutch block retaining groove 7 of the unlocking dial 4 via the clutch block 26. During assembly, the push rod spring 25 is fitted onto the rotating rod 24. The rotating rod 24 is inserted into the assembly ring 29 of the push rod 23, passes through the push rod spring 25, and is inserted into the hollow area at the rear. The push rod spring 25 is then fitted onto the rotating rod 24. The end of the lever 27 on the rotating rod 24 extends from the gap in the middle portion of the push rod spring 25 to the outer end of the push rod spring 25. After the mechanical clutch mechanism is assembled, the clutch rod 31 of the mechanical clutch mechanism passes through the inner flange 5 of the unlocking dial 4. The clutch rod 31 is in sliding connection with the clutch block 26 of the electronic clutch mechanism via the clutch rod slot 34. That is, the clutch block 26 is always located within the clutch rod slot 34.

[0060] When the motor 22 is powered on, the motor shaft drives the rotating rod 24 to rotate, and the driving rod 27 arranged on the rotating rod 24 compresses (pushes) the push rod spring 25 layer by layer (turns). (Since the motor fixing part 9 is provided with a limiting slide groove that cooperates with the ear plate 28, the push rod 23 can only move axially and cannot rotate circumferentially). The push rod 23 is pushed by the push rod spring 25 to move axially on the rotating rod 24, thereby driving the clutch block 26 to move axially in the slide groove 19. Under the joint constraint of the retaining spring and the push rod 23, the clutch block 26 can rotate at the end of the push rod 23. When the clutch block 26 moves in the direction of the unlocking dial 4, it can engage with the clutch block slot 7 of the unlocking dial 4, so that the clutch rod 31, the clutch block 26 and the unlocking dial 4 are connected together. At this time, rotating the outer lock core 2 can drive the unlocking dial 4 to rotate, thereby realizing unlocking or locking. When the motor 22 rotates in the reverse direction, the clutch block 26 moves in the reverse direction and separates from the unlocking dial 4, returning to the initial state of the outer lock core idling. The motor 22 can also be a reciprocating electromagnet or a swinging electromagnet, and the push rod 23 can be improved so that it can drive the clutch block 26 to move axially.

[0061] When the electric clutch mechanism is working, the clutch block 26 is engaged with the unlocking dial wheel 4. When the system is powered on, the electric motor 22 of the electric clutch mechanism is started, the motor 22 rotates forward, and the motor shaft drives the rotating rod 24 to rotate. When the lock is unlocked, the motor 22 rotates in the opposite direction, and the clutch block 26 is withdrawn from the clutch block slot 7, and the previously formed connection body is separated, returning to the initial state of the outer lock core 2 idling.

[0062] The above specific implementation schemes are only two implementation schemes in actual applications. Due to the variety of mechanical clutch mechanisms and electronically controlled clutch mechanisms, the locking mechanism between the outer lock cylinder and the inner lock cylinder is not limited to the blade plus blade spring locking structure described above. The cross-section of the lock cylinder housing 1 can be gourd-shaped, circular, or other special shapes. The unlocking dial wheel 4 can also be a gear of different specifications. Therefore, the above specific implementation schemes do not mean that the present invention is limited to these two implementation schemes.

[0063] The mechanical and electronically controlled dual-purpose lock core has the characteristics of simple structure and good practicality. It solves the problem that the existing lock core cannot be unlocked with a mechanical key and cannot be unlocked without a key at the keyhole end through electronic control, which greatly improves convenience and increases application value.

Claims

1. A mechanical and electrically controlled dual-purpose lock cylinder, comprising a lock cylinder housing (1), an inner lock cylinder (3), and an unlocking dial wheel (4) movably arranged in the middle of the lock cylinder housing (1), wherein an outer lock cylinder (2) is movably fitted in an assembly hole at one end of the lock cylinder housing (1), and the inner lock cylinder (3) is fitted in the outer lock cylinder (2), and the characteristics are: The outer lock core (2) and the inner lock core (3) are connected via a locking mechanism, and the outer lock core (2) and the inner lock core (3) are connected to the unlocking dial wheel (4) via a mechanical clutch mechanism; an electric clutch mechanism is installed in the assembly hole at the other end of the lock core housing (1), and the electric clutch mechanism is connected to the unlocking dial wheel (4); The mechanical clutch mechanism is composed of a clutch steel ball (43), a steel ball hole (42) provided on the outer lock core (2), and a steel ball shifting block (44) provided on the inner lock core (3). The outer lock core (2) is engaged with the steel ball slot (37) on the unlocking dial wheel (4) through the clutch steel ball (43), and the steel ball shifting block (44) is in contact with the clutch steel ball (43). The outer locking liner (2) is a variable diameter tubular body, and an outer locking liner slide groove (39) is provided at one end of the outer locking liner (2); a limiting ring groove (40) is provided on the outer locking liner (2) on one side of the outer locking liner slide groove (39), and a limiting slide groove (41) is provided on the outer locking liner (2) on one side of the limiting ring groove (40); a steel ball hole (42) is provided on the outer locking liner (2) between the limiting ring groove (40) and the outer locking liner slide groove (39), and a clutch steel ball (43) is installed in the steel ball hole (42).

2. The mechanical and electrical dual-purpose lock cylinder according to claim 1, characterized in that: The inner locking liner (3) is a variable diameter body, and one end of the inner locking liner (3) is provided with a flat steel ball block (44), the flat surface of the steel ball block (44) is arc-shaped, and a plurality of blade assembly holes (15) are arranged in parallel on the circumferential surface of the inner locking liner (3), and blades (17) are installed in the blade assembly holes (15) through blade springs (16). A circumferential locking is formed between the outer locking liner (2) and the inner locking liner (3) through the blades (17) and the blade springs (16). A limiting assembly pin (45) is provided on the inner locking liner (3) on the side below the blade assembly hole (15), and a circumferential limit is formed between the outer locking liner (2) and the inner locking liner (3) through the cooperation of the limiting slide groove (41) and the limiting assembly pin (45). The other end of the inner locking liner (3) is provided with a keyhole (14).

3. The mechanical and electrical dual-purpose lock cylinder according to claim 1, characterized in that: The locking mechanism is composed of a blade (17) mounted in a blade assembly hole (15) of an inner locking core (3) via a blade spring (16), and a blade hole (10) provided on an outer locking core (2). The outer locking core (2) and the inner locking core (3) are connected by the cooperation of the blade (17) and the blade hole (10).

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