Mechanical eyeglass retainer anti-theft device and key opener

Abstract

The present application relates to commodity anti-theft device, the purpose is to overcome the deficiency in the background art, provide a kind of convenient operation, good anti-theft performance mechanical glasses buckle anti-theft device and unlocking device.The technical scheme is: a kind of mechanical glasses buckle anti-theft device, including the buckle seat with the socket, with the base of buckle seat rotation connection, the compression member of being position in socket liftably, the lock core mechanism of connecting compression member and base;a kind of unlocking device, for the mechanical glasses buckle anti-theft device described, including handle and core rod.The anti-theft device of the present application is built-in full mechanical structure's lock core mechanism and is equipped with special unlocking device, adopts rotation mode to realize mechanical mode's locking and unlocking, operation is very convenient, greatly improves the anti-theft performance.

Description

Technical Field

[0001] This invention relates to anti-theft devices for goods, specifically a mechanical eyeglass buckle anti-theft device and a lock pick. Background Technology

[0002] Most existing anti-theft tags for goods use magnetic unlocking. For example, an anti-theft tag for eyeglasses (publication number CN104631970B) and a magnetic push-type eyeglass tag (publication number CN212428379U) have an internal iron pin. When attracted by magnetism, the pin shifts, opening the limiting mechanism and thus unlocking the item. Magnetic unlocking devices specifically designed for this type of device are readily available on the market; therefore, their anti-theft performance is insufficient to meet the needs of product protection and requires further improvement. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings in the above-mentioned background technology and provide a mechanical eyeglass buckle anti-theft device and a unlocking device, which should be easy to operate and have good anti-theft performance.

[0004] The technical solution of this invention is: A mechanical eyeglass buckle anti-theft device includes a buckle base with a socket, a base rotatably connected to the buckle base, a clamping member vertically positioned in the socket, and a lock cylinder mechanism connecting the clamping member and the base. The lock cylinder mechanism includes a locking ring rotatably positioned in the base, a central column rotatably positioned in the locking ring and threadedly connected to the clamping member, a locking block vertically slidably positioned on the central column and gear-engaged with the locking ring, a spring for engaging the locking block and the locking ring, and a first ratchet mechanism and a second ratchet mechanism respectively disposed between the base and the locking ring and between the locking ring and the buckle base, with opposite locking directions. The bottom surface of the base has a bottom hole; the bottom surface of the central column has an unlocking groove and a socket communicating with the bottom hole.

[0005] The buckle is provided with a support at its lower part; the base is rotatably connected to the support.

[0006] The clamping member can be vertically slidably positioned in the socket, and the lower part of the clamping member is provided with a threaded sleeve that passes through the support and extends into the base; the inner wall of the threaded sleeve is provided with internal threads.

[0007] The upper part of the central column is provided with an external thread that meshes with the internal thread; the lower part of the central column is provided with a sliding groove; the locking block is vertically and slidably positioned in the sliding groove; the spring is positioned between the external thread and the locking block; the insertion hole connects the sliding groove and the unlocking groove.

[0008] The lock block is provided with locking teeth; the lock ring is provided with an internal toothed ring that meshes with the locking teeth.

[0009] The first ratchet mechanism includes a fixed tooth disposed in the inner cavity of the base and a first elastic tooth disposed in the locking ring.

[0010] The second ratchet mechanism includes an upper toothed ring disposed on the locking ring and a second elastic tooth disposed on the support.

[0011] The bottom surface of the lock block is provided with a positioning hole; the positioning hole, insertion hole, unlocking groove and bottom hole are arranged coaxially; the tooth surface of the lock tooth is provided with a guide slope.

[0012] A lock pick for the aforementioned mechanical eyeglass buckle anti-theft device includes a handle and a core rod; the front end of the core rod is provided with a pin that matches the lock opening groove, and the front end of the pin is provided with a pin.

[0013] The beneficial effects of this invention are: The anti-theft device of this invention has a built-in fully mechanical lock cylinder mechanism and is equipped with a special unlocking device. It can lock and unlock mechanically by rotating, making it very convenient to operate. It is suitable for protecting various types of glasses and cannot be opened using conventional magnetic unlocking devices, greatly improving the anti-theft performance. Attached Figure Description

[0014] The following describes some specific embodiments of the invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components.

[0015] Figure 1 This is one of the three-dimensional structural schematic diagrams of the present invention (unlocked).

[0016] Figure 2 This is the second three-dimensional structural schematic diagram of the present invention (unlocked).

[0017] Figure 3 This is the third three-dimensional structural schematic diagram of the present invention (locked).

[0018] Figure 4 This is a schematic diagram of the main structure of the present invention (unlocked).

[0019] Figure 5 This is a schematic diagram of the right-side structure of the present invention (unlocked).

[0020] Figure 6 yes Figure 4 Schematic diagram of the cross-sectional structure along the AA direction.

[0021] Figure 7 yes Figure 6 A diagram illustrating the locked state.

[0022] Figure 8 yes Figure 4 Schematic diagram of the cross-sectional structure along the BB direction.

[0023] Figure 9 yes Figure 5A schematic diagram of the cross-sectional structure along the CC direction.

[0024] Figure 10 This is one of the exploded views of the present invention.

[0025] Figure 11 This is the second exploded view of the present invention.

[0026] Figure 12 This is a cross-sectional structural diagram of the buckle and clamping member of the present invention.

[0027] Figure 13 This is a three-dimensional structural diagram of the base of the present invention.

[0028] Figure 14 This is a cross-sectional structural diagram of the base of the present invention.

[0029] Figure 15 This is a schematic diagram of the half-section structure of the present invention.

[0030] Figure 16 This is a three-dimensional structural diagram of the buckle of the present invention.

[0031] Figure 17 This is a cross-sectional structural diagram of the lock cylinder mechanism of the present invention.

[0032] Figure 18 This is a three-dimensional structural diagram of the central column, locking block, and spring of the present invention.

[0033] Figure 19 This is a three-dimensional structural diagram of the threaded block of the present invention.

[0034] Figure 20 This is a three-dimensional structural diagram of the locking block of the present invention.

[0035] Figure 21 This is one of the three-dimensional structural schematic diagrams of the central column of the present invention.

[0036] Figure 22 This is the second three-dimensional structural schematic diagram of the central column of the present invention.

[0037] Figure 23 This is a three-dimensional structural diagram of the locking ring of the present invention.

[0038] Figure 24 This is a schematic diagram of the unlocking method of the present invention.

[0039] Figure 25 This is a three-dimensional structural diagram of the unlocking device of the present invention.

[0040] Figure label: 1. Buckle, 1-1. Insert, 1-2. Support, 1-3. Second elastic tooth, 1-4. Guide groove, 1-5. Slider, 1-6. Through hole, 1.1. Front half shell, 1.2. Clamping part, 2. Threaded sleeve, 2-1. Internal thread, 2-2. Guide block, 2-3. Base, 3. Bottom hole, 3-1. Fixed tooth, 3-2. Annular groove, 3-3. Upper half shell, 3.1. Lower half shell, 3.2. Locking ring, 5. Internal gear ring, 5-1. First elastic tooth, 5-2. Upper gear ring, 5-3. Center post, 6. Unlocking groove, 6-1. Insertion hole, 6-2. Slide groove, 6-3. Boss, 6-4. Slot, 6-5. Locking block, 7. Locking tooth, 7-1. Positioning hole, 7-2. Guide slope, 7-3. Spring, 8. Threaded block, 9. Raised rib, 9-1. Unlocker, 10. Handle, 10-1. Core rod, 10-2. Column head, 10-3. Pin, 10-4. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0042] This invention provides a mechanical eyeglass buckle anti-theft device, including a buckle base 1, a pressing component 2, a base 3, and a lock cylinder mechanism.

[0043] like Figure 1 , Figure 6 , Figure 7 , Figure 8 , Figure 9 As shown, the buckle and the base are rotatably connected, and the clamping part is positioned in the buckle in a height-adjustable manner. The clamping part and the base are connected by a locking mechanism.

[0044] like Figure 11 As shown, the buckle is composed of a front half-shell 1.1 and a rear half-shell 1.2, and the base is composed of an upper half-shell 3.1 and a lower half-shell 3.2. Figure 16 As shown, the fastener has a U-shaped socket 1-1, a ring-shaped support 1-2 at the bottom, and a through hole 1-6 on the bottom surface of the socket. Figure 13 and Figure 14 As shown, the top surface of the base is open, and the bottom surface of the base has a bottom hole 3-1 communicating with the inner cavity. The support extends downward into the inner cavity of the base, and the outer wall of the support is provided with a slider 1-5. The inner wall of the inner cavity of the base is provided with an annular groove 3-3 that cooperates with the slider. The slider is slidably positioned in the annular groove, so that the base and the support can be rotated and axially limited.

[0045] like Figure 12As shown, the clamping member can be vertically slidably positioned in the socket. Guide grooves 1-4 are provided on both sides of the socket, and guide blocks 2-3 embedded in the guide grooves are provided at both ends of the clamping member. The lower part of the clamping member is also provided with a threaded sleeve 2-1, which passes through the through hole and the support and extends into the inner cavity of the base.

[0046] The lock cylinder mechanism includes a lock ring 5, a central post 6, a lock block 7, a spring 8, a first ratchet mechanism, and a second ratchet mechanism.

[0047] The central post and locking ring are coaxially nested, with the locking ring rotatably positioned within the base. The central post is rotatably positioned within both the base and the locking ring. The outer diameter of the locking ring matches the outer diameter of the support, and the locking ring is positioned between the bottom surfaces of the inner cavities of the support and the base (achieving axial limiting). The central post axially passes through the locking ring, and its bottom has a boss 6-4. The outer diameter of the boss is larger than the inner diameter of the locking ring, and the boss is positioned between the locking ring (internal gear ring) and the bottom surface of the inner cavity of the base (achieving axial limiting). Figure 21 and Figure 22 As shown, the boss also has a locking groove 6-1 and a socket 6-2. The locking groove is located on the bottom surface of the boss and is a polygonal countersunk hole. The socket connects the countersunk hole on the bottom surface of the boss with the top surface of the boss. Figure 2 As shown, both the unlocking slot and the insertion hole are located in the bottom hole.

[0048] The central column is threadedly connected to the clamping member, the inner wall of the threaded sleeve of the clamping member is provided with internal threads 2-2, and the upper part of the central column is provided with external threads that mesh with the internal threads. For example... Figure 18 and Figure 21 As shown, the upper part of the central column is provided with a slot 6-5, and the threaded block 9 is inserted into the slot. The two ends of the threaded block are provided with protruding ribs 9-1 extending out of the slot as external threads.

[0049] The lock block engages with the lock ring. The lower part of the central column is provided with a vertically extending slide groove 6-3. The slide groove is connected to the insertion hole. The lock block can be vertically slidably positioned in the slide groove. Both ends of the lock block are provided with lock teeth 7-1 extending out of the slide groove. The inner ring of the lock ring is provided with an inner tooth ring 5-1 that engages with the lock teeth.

[0050] The spring is used to apply pressure to the locking teeth so that they engage with the internal gear ring, such as... Figure 18 As shown, the spring is sleeved on the central post, with its two ends pressing against the threaded block and the locking block, respectively. When an external force pushes the locking block upward, the locking block and the locking ring are misaligned, the locking teeth disengage from the inner gear ring, and the spring is compressed. If the external force is released at this time, the spring resets the locking teeth, and the locking teeth re-engage with the inner gear ring.

[0051] The lower part of the tooth surfaces on both sides of the locking teeth is provided with guide slopes 7-3, which allows the locking teeth to be easily inserted into the inner tooth ring. The bottom surface of the locking block is also provided with positioning holes 7-2. The positioning holes, insertion holes, unlocking grooves, and bottom holes are arranged coaxially from top to bottom.

[0052] The first ratchet mechanism is disposed between the base and the locking ring, and includes a fixed tooth 3-2 and a first elastic tooth 5-2. The fixed tooth is disposed on the bottom surface of the inner cavity of the base and is arranged in a ring. The first elastic tooth has a cantilever structure and is disposed on the bottom surface of the locking ring. Figure 13 Four fixed teeth are visible in the middle. Figure 23 Two first elastic teeth are visible in the middle.

[0053] The second ratchet mechanism is disposed between the locking ring and the buckle seat, and includes an upper toothed ring 5-3 and a second elastic tooth 1-3. The upper toothed ring is disposed on the top surface of the locking ring. The second elastic tooth has a cantilever structure and is disposed on the bottom surface of the support. Figure 16 Two second elastic teeth are visible. The second elastic teeth have the same shape as the first elastic teeth but lock in the opposite direction.

[0054] like Figure 8 As shown, when the buckle is fixed and the base is rotated clockwise, the locking ring remains fixed due to the locking of the second ratchet mechanism and the free rotation of the first ratchet mechanism, and a unidirectional rotation occurs between the base and the locking ring.

[0055] like Figure 8 As shown, when the buckle is fixed and the base is rotated counterclockwise, the first ratchet mechanism is locked and the second ratchet mechanism is idle. The base drives the locking ring to rotate counterclockwise synchronously, resulting in unidirectional rotation between the buckle and the locking ring. At this time, the locking ring drives the central column to rotate through the locking block. The central column then causes the clamping part to rise through the threaded block, gradually closing the socket and completing the locking. Simultaneously, because the second ratchet mechanism is idle, the second elastic tooth continuously slides over the upper gear ring. The bending deformation and rebound impact of the second elastic tooth will produce a "click-click-click" sound, similar to the locking sound, thus indicating to the user that the locking action is in progress (this sound does not occur when rotating in the opposite direction).

[0056] The present invention also provides a lock pick 10, such as Figure 25 As shown, the device includes a handle 10-1, a core rod 10-2, a pin 10-3, and a push pin 10-4, which are coaxially connected in sequence. The pin is located at the front end of the core rod, and its shape is compatible with the shape of the unlocking groove. The push pin is located at the front end of the pin, and its length is greater than the length of the insertion hole.

[0057] The working principle of this invention is: 1. Unlocked: such as Figure 1 , Figure 6 , Figure 9 As shown, the clamping part descends to the bottom, the socket opens to the maximum, and the locking block engages with the locking ring.

[0058] 2. Locking: Insert the temple into the slot, then rotate the base. Due to the locking of the first ratchet mechanism and the free rotation of the second ratchet mechanism, the base drives the locking ring, locking block, center column, and threaded block to rotate. The threaded block then drives the clamping part to rise, gradually closing the slot and clamping the temple, thus completing the locking process. Figure 3 , Figure 7 ).

[0059] 3. Anti-theft: If the base is rotated in the opposite direction, the socket will not open because the first ratchet mechanism will spin freely; if a magnetic unlocking device is used to approach the anti-theft device, the lock cylinder mechanism will not produce any action; if the anti-theft device is struck, the socket will not open because the threaded structure locks the clamping part.

[0060] 4. Unlocking: such as Figure 24 As shown, forcefully insert the unlocking device into the bottom hole, the pin head is locked into the unlocking groove, the ejector pin passes through the insertion hole and extends into the positioning hole, the ejector pin pushes the lock block away from the lock ring (spring compression), at this time turning the handle will directly drive the center column to rotate, the center column then drives the clamping part to descend and open the insertion port, after pulling out the eyeglass temple, remove the unlocking device to reset the lock block, the lock block re-engages the lock ring.

[0061] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A mechanical eyeglass buckle anti-theft device, characterized in that: The device includes a buckle (1) with a socket (1-1), a base (3) rotatably connected to the buckle, a clamping member (2) vertically positioned in the socket, and a lock cylinder mechanism connecting the clamping member and the base. The lock cylinder mechanism includes a lock ring (5) rotatably positioned in the base, a central column (6) rotatably positioned in the lock ring and threadedly connected to the clamping member, a lock block (7) vertically slidably positioned on the central column and gear-engaged with the lock ring, a spring (8) that engages the lock block and the lock ring, and a first ratchet mechanism and a second ratchet mechanism respectively disposed between the base and the lock ring and between the lock ring and the buckle, with opposite locking directions. The bottom surface of the base is provided with a bottom hole (3-1). The bottom surface of the central column is provided with an unlocking groove (6-1) and a socket (6-2) communicating with the bottom hole.

2. The mechanical eyeglass buckle anti-theft device according to claim 1, characterized in that: The lower part of the buckle is provided with a support (1-2); the base is rotatably connected to the support.

3. The mechanical eyeglass buckle anti-theft device according to claim 2, characterized in that: The clamping member can be vertically slidably positioned in the socket, and the lower part of the clamping member is provided with a threaded sleeve (2-1) that passes through the support and extends into the base; the inner wall of the threaded sleeve is provided with an internal thread (2-2).

4. The mechanical eyeglass buckle anti-theft device according to claim 3, characterized in that: The upper part of the central column is provided with an external thread that meshes with the internal thread; the lower part of the central column is provided with a sliding groove (6-3); the locking block can be vertically slidably positioned in the sliding groove; the spring is positioned between the external thread and the locking block; the insertion hole connects the sliding groove and the unlocking groove.

5. The mechanical eyeglass buckle anti-theft device according to claim 4, characterized in that: The lock block is provided with locking teeth (7-1); the lock ring is provided with an internal toothed ring (5-1) that meshes with the locking teeth.

6. The mechanical eyeglass buckle anti-theft device according to claim 5, characterized in that: The first ratchet mechanism includes a fixed tooth (3-2) disposed in the inner cavity of the base and a first elastic tooth (5-2) disposed in the locking ring.

7. The mechanical eyeglass buckle anti-theft device according to claim 6, characterized in that: The second ratchet mechanism includes an upper toothed ring (5-3) disposed on the locking ring and a second elastic tooth (1-3) disposed on the support.

8. The mechanical eyeglass buckle anti-theft device according to claim 7, characterized in that: The bottom surface of the lock block is provided with a positioning hole (7-2); the positioning hole, insertion hole, unlocking groove and bottom hole are arranged coaxially; the tooth surface of the lock tooth is provided with a guide slope (7-3).

9. A lock pick (10) for use in the mechanical eyeglass buckle anti-theft device according to any one of claims 1-8, characterized in that: It includes a handle (10-1) and a core rod (10-2); the front end of the core rod is provided with a pin (10-3) that is compatible with the unlocking groove, and the front end of the pin is provided with a push pin (10-4).

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