Patent Application
20230003055
The present invention relates generally to a lock device and locking hasps thereof, and more particularly to a lock device and locking hasps thereof that hide a shackle and are easily applicable to locking of vehicle compartments and large-sized warehouse doors.
Mechanical locks have been long favored by people, and mechanical locks implemented in the form of padlocks are the most favorite ones because of easy operation. Locking of a padlock is conducted through operating a shackle. However, conventionally, the shackle is exposed outside the lock and destruction may be made to the exposed shackle, or connection between the shackle and the lock body, by an evildoer. Thus, the shackle is commonly considered a fatal weakness of the lock device.
Recent development brought a lock device that conceals the shackle, such as one shown in
Such as known lock device allows the shackle 2 to be covered by and hidden in the lock body 1 and also provides the lock body 1 with a high strength for resisting destruction through application of external forces, so as to achieve a high level of protection and be favored by people. In many regions, people are used to applying such a lock device 1 to lock a compartment of a large-sized vehicle, and there are also people who prefers for applications to locking of doors or large-sized warehouses.
However, a lock tongue (not shown) arranged at an end of a lock core 11 of the known lock device is connected to an end of the shackle 2 to combine the lock core 11 and shackle 2 together in a coaxial arrangement, so that the shackle 2 is drivable to rotate by the lock core 11. Further, tumblers 12 are arranged alongside the lock core 11. To provide the lock core 11 with an increased length for accommodating a larger number of tumblers 12 to thereby achieve high variability of arrangement of the tumblers 12 for being not easily broken, the known lock body 1 of such a design is commonly of a large diameter. Further, a keyhole of the lock core 11 of such a known lock device is commonly formed in a side of the lock body 1. Practically, the keyhole is very close to the locking hasps 3 and as such, operations of inserting, rotating, and withdrawing a key for locking and unlocking are easily interfered with, leading to inconvenience for practical uses thereof.
The present invention generally relates to a lock device and locking hasps thereof, which are mainly made for overcoming or alleviating the drawbacks of the prior art lock device that is bulky and is hard to operate with a key.
For such a purpose, the present invention provides a lock device and locking hasps thereof. The lock device according to the present invention comprises, at least, a lock body and a shackle, wherein the lock body includes a bottom portion and a top portion, and the lock body is formed or provided, in the interior thereof, with a first accommodation zone, a second accommodation zone, a lock bore, a protective cover lid, a lock core, and a closure plate. The bottom portion is located on a bottom side of the lock body and is formed with a recessed area that is slightly recessed inwardly into the interior of the lock body. The top portion is located on a top side of the lock body and is formed with a hole. The first accommodation zone is made in the form of a cylindrical hole. The first accommodation zone is formed through recessing from an interior portion of the recessed area of the bottom portion further into the interior of the lock body to be in communication with the hole of the top portion. The second accommodation zone is formed through recessing the bottom portion inwardly of the lock body. The second accommodation zone includes a communication section that is in communication with the first accommodation zone. The lock bore perpendicularly extends from a lateral side of the lock body into, and is in communication with, the second accommodation zone, and the lock bore is set in communication with one side of the first accommodation zone. The protective cover lid is in the form of a circular plate that is made of a metallic material that has been subjected to heat treatment to exhibit a high strength and is received in the first accommodation zone. The protective cover lid is formed therein with a penetration opening that penetrates through a main body thereof. The lock core has one end that is provided with a lock tongue and an opposite end that is formed with a keyhole. The lock tongue is extendible out of a lateral side surface of the lock core. The end of the lock core that is provided with the lock tongue is further formed with a cut-off notch. The closure plate is formed to has a contour that corresponds to and matches with the recessed area of the bottom portion. The closure plate includes an inset portion extended from one surface thereof to match with the communication section of the second accommodation zone. The shackle is made in the form of a cylindrical rod made of a metallic material that has been subjected to heat treatment to exhibit a high strength. The shackle comprises a shackle body and a rounded end portion, and an end of the shackle body that is opposite to the rounded end portion is formed as a hook portion. The shackle is sleeved with a spring.
The efficacy that the above-described structure of the present invention may provide is that in the present invention, the shackle can be deeply hidden in the lock body and is not readily damaged. The lock core is disposed into the first accommodation zone through the bottom portion of the lock body, so that the lock core is arranged in an upstanding manner in the lock body, and the keyhole faces the top portion of the lock body to allow an operator to easily and efficiently find the keyhole of the lock core for conducting an unlocking operation. Further, the lock core is protected by the protective cover lid from being damaged. Further, since the lock core is arranged in an upstanding manner in the lock body, the diameter of the lock body can be reduced for fabrication and applications so as to achieve compactness and easiness of operation. Further, since the lock core is arranged in an upstanding manner in the lock body, a slight increase of the height of the lock body allows for an increase of the length of the lock core disposed therein, so as to enable increase and sophistication of the tumblers arranged inside the lock core to thereby further increase the difficulty of breaking the lock core, and this further enhances the locking security of the lock device.
Firstly, with reference to
In the lock device, the lock body 4 is formed as a cylindrical body that is made of a metallic material that has been subjected to heat treatment to exhibit a high strength. The lock body 4 includes a bottom portion 41 and a top portion 42. The lock body 4 includes, as being formed or arranged therein, a first accommodation zone 43, a second accommodation zone 44, a lock bore 45, a protective cover lid 46, a lock core 47, and a closure plate 48.
The bottom portion 41 is arranged at a bottom side of the lock body 4 and is formed with a recessed area 411, which is recessed into interior of the lock body 4.
The top portion 42 is arranged at a top side of the lock body 4 and is formed with a hole 421.
The first accommodation zone 43 is made in the form of a cylindrical hole. The first accommodation zone 43 is formed through recessing from an interior portion of the recessed area 411 of the bottom portion 41 further into the interior of the lock body 4 to be in communication with the hole 421 of the top portion 42. The first accommodation zone 43 has a hole diameter that is greater than a hole diameter of the hole 421 of the top portion 42.
The second accommodation zone 44 is formed through recessing a portion of the bottom portion 41 into the interior of the lock body 4. The second accommodation zone 44 includes a communication section 441 that is in communication with the first accommodation zone 43. The second accommodation zone 44 is also formed, in a sidewall thereof, with a trough 442.
The lock bore 45 perpendicularly extends from a lateral side of the lock body 4 into, and is in communication with, the second accommodation zone 44. Further, the lock bore 45 is arranged to correspond to the trough 442 that is formed in the sidewall of the second accommodation zone 44. Further, the lock bore 45 is made in communication with a side of the first accommodation zone 43. The lock bore 45 includes a large-diameter section 451 that has a relatively large hole diameter adjacent to an outer circumference of the lock body 4. The large-diameter section 451 is provided with an expanded opening section 452 that is inclined so as to extend to and connect to the outer circumference of the lock body 4.
The protective cover lid 46 is in the form of a circular plate that is made of a metallic material that has been subjected to heat treatment to exhibit a high strength. The protective cover lid 46 includes, as being formed therein, a penetration opening 461 that penetrates through a main body thereof. The protective cover lid 46 is formed, on one of surfaces thereof, with a protrusion portion 462 that has a relatively small diameter.
Referring to
The closure plate 48 is made in a form having a contour matching and in collaborative engagement with the recessed area 411 of the bottom portion 41, and is provided, as being protruded from one of surfaces thereof, with an inset portion 481 that matches with the communication section 441 of the second accommodation zone 44. The inset portion 481 is provided, on a side surface thereof, with an arc-surface side 482 that is in the form of an arc curved surface extending in an axial direction thereof. The inset portion 481 is provided, in an opposite side thereof, with a curved trough 483 in the form of a circular arc configuration. The closure plate 48 further includes a top support portion 484 that is protruded to match with the cut-off notch 473 of the lock core 47.
The shackle 5 is made in the form of a cylindrical rod made of a metallic material that has been subjected to heat treatment to exhibit a high strength. The shackle 5 includes a shackle body 51, and the shackle body 51 has an end that is formed as a rounded end portion 52. The shackle body 51 is provided, on one side thereof, with a flat cut section 511 that extends in an axial direction thereof and includes a surface in the form of a flat plate. The flat cut section 511 is formed therein with a cut-off notch 512. The flat cut section 511 is extended to an end that is opposite to the rounded end portion 52 and does not extend through the end of the shackle body 51, so that the end that is opposite to the rounded end portion 52 is formed as a hook portion 53. A circumferential recessed groove 513 is formed in connection between the shackle body 51 and the rounded end portion 52. A spring 54 is fit over and encompasses the shackle 5. The rounded end portion 52 has an outer surface that is configured to match a shape of the lateral side of the lock body 4. The rounded end portion 52 has an inner surface that is formed as a conic portion 521 converging inwardly, from a large size to a small size, for connection with the shackle body 51.
To assemble the invention, reference is made to
Next, the lock core 47 is disposed through the bottom portion 41 of the lock body 4 into the first accommodation zone 43, such that the end of the lock core 47 that is formed with the keyhole 472 is set in a direction of facing the top portion 42 of the lock body 4. As such, the lock core 47 is disposed in an upstanding manner, in the interior of the lock body 4, and the lock core 47 abuts the protective cover lid 46. Preferably, a cushion ring 463 is additionally arranged between the protective cover lid 46 and the lock core 47. In an embodiment, the cushion ring 463 has a cross-section that is preferably circular. By means of the arrangement of the cushion ring 463, a contact area between the lock core 47 and the protective cover lid 46 is reduced to thereby reduce a frictional force between the lock core 47 and the protective cover lid 46. Further, since the lock bore 45 is made in communication with one side of the first accommodation zone 43, the lock tongue 471 of the lock core 47 disposed in the first accommodation zone 43 is extendible into the lock bore 45.
Next, the spring 54 is first sleeved over the shackle 5, and the spring 54 is partly received into and retained in position by the circumferential recessed groove 513 of the shackle 5. The end of the shackle 5 that is formed with the hook portion 53 is arranged to face the lock bore 45 for insertion into the lock body 4, so as to set the flat cut section 511 of the shackle 5 in a direction of facing the lock core 47 disposed inside the lock body 4. Under such a condition, due to the lock tongue 471 of the lock core 47 being extended into and reaching into the lock bore 45, the flat cut section 511 of the shackle 5 is set in abutting engagement with the lock tongue 471 of the lock core 47. Afterwards, the closure plate 48 is mounted by screws 485 to and closes the recessed area 411 of the bottom portion 41 of the lock body 4. Under such a condition, the inset portion 481 of the closure plate 48 is inserted into a portion of the communication section 441 that provides communication between the second accommodation zone 44 and the first accommodation zone 43, so that the arc-surface side 482 of the inset portion 481 is in contact engagement with the lock core 47 that is located in the first accommodation zone 44 to fix the lock core 47. One surface of the inset portion 481 is set flush with a wall of the second accommodation zone 44, and the curved trough 483 of the inset portion 481 is set corresponding to the lock bore 45, so as to have the hook portion 53 of the shackle 5 constrained by the curved trough 483, and the top support portion 484 of the closure plate 48 engage and hold the cut-off notch 473 of the lock core 47 thereby realizing an effect of securely fixing and positioning the lock core 47. This completes the assembly of the lock body 4. Further, in implementation, the closure plate 48 has a thickness that corresponds to the recessed area 411 of the bottom portion 41, so that the closure plate 48, when disposed in and covering the recessed area 411 of the bottom portion 41 of the lock body 4, exhibits a flat form with respect to the bottom portion 41 of the lock body 4.
To use the present invention, reference being had to
Further referring to
As shown in
Further, when an evildoer uses an electrical drill to drill the lock core 47, since the lock core 47 is provided, on an outer side thereof, with the protective cover lid 46, the electric drill will first contact the protective cover lid 46 to be blocked thereby from contacting the lock core 47, so that the lock core 47 is protected from damage caused by drilling made with an electric drill. Further, the protective cover lid 46 itself is made of a material that exhibits a high strength, so that in addition to the strength thereof that is hard to be damaged through drilling, the diameter of the protective cover lid 46 is made slightly smaller than the hole diameter of the first accommodation zone 43, so that after the protective cover lid 46 is disposed into the first accommodation zone 43, the protective cover lid 46 is in fact in a condition of being not constrained by the first accommodation zone 43 in respect of rotating in situ. Thus, in case of being drilled by an electric drill, when the electric drill gets into contact with the protective cover lid 46 through drilling, the protective cover lid 46 will be caused to rotate in situ by following the rotation of the electric drill. In this way, the electric drill is prevented from conducting effective cutting and drilling. Further, the protective cover lid 46 and the lock core 47 are provided with the cushion ring 463 arranged therebetween, and the cushion ring 463 functions to reduce the contact area between the protective cover lid 46 and the lock core 47 so as to minimize the frictional force induced between the protective cover lid 46 and the lock core 47 thereby helping make the protective cover lid 46 rotating in situ when be drilled by an electric drill and thus making the electrical drill totally impotent for conducting cutting and drilling.
Following the above, to unlock, as shown in
In another embodiment of the present invention, reference being had to
Further, the locking hasps 6 may be provided, on a front side thereof, with at least one ancillary lug 69. The ancillary lug 69 is formed with a hole 691, and preferably, the ancillary lug 69 is arranged in a direction that is different from the lug 61 so as to be readily differed from the lug 61 for easy identification. To implement, when an operator unlocks and removes the lock body 4 from the lugs 61, the operator may then hang the lock body 4 on the ancillary lug 69 for temporary positioning, wherein the second accommodation zone 44 of the lock body 4 may receive the ancillary lug 69 to inset therein. In this way, the lock body 4 is provided with a location for temporary storage and keeping, and this helps eliminate the embarrassing situation where there is no place for storing or keeping the lock body 4 after unlocking. Further, the shackle 5 may be operated for locking and attaching to the hole 691 of the ancillary lug 69 so that the lock body 4 is securely attached to the ancillary lug 69, making the ancillary lug 69 temporarily held in a more secured manner.
The efficacy that the above-described structure of the present invention may provide is that in the present invention, the shackle 5 can be deeply hidden in the lock body 4 and is not readily damaged, wherein the lock core 47 is arranged in an upstanding manner in the lock body 4, and the keyhole 472 of the lock core 47 is arranged to face toward the top portion 42 of the lock body 4 to allow an operator to easily and efficiently find the keyhole 472 of the lock core 47 for conducting an unlocking operation, and further, the lock core 47 is protected by the protective cover lid 46 from being damaged. The present invention exhibits feature of both locking security and easiness of use. Further, since the lock core 47 is arranged in a vertically erected or upstanding manner in the lock body 4, the diameter of the lock body 4 can be reduced for fabrication and applications so as to achieve compactness and easiness of operation. Further, since the lock core 47 is arranged in a vertically erected or standing manner in the lock body 4, a slight increase of the height of the lock body 4 allows for an increase of the length of the lock core 47 disposed therein, so as to enable increase and sophistication of the tumblers arranged inside the lock core 47 to thereby further increase the difficulty of breaking the lock core 47, and this further enhances the locking security of the lock device.
| Number | Date | Country | Kind |
|---|---|---|---|
| 110124216 | Jul 2021 | TW | national |
