CN113202343A - Lock protector - Google Patents
Lock protector Download PDFInfo
- Publication number
- CN113202343A CN113202343A CN202110642009.2A CN202110642009A CN113202343A CN 113202343 A CN113202343 A CN 113202343A CN 202110642009 A CN202110642009 A CN 202110642009A CN 113202343 A CN113202343 A CN 113202343A
- Authority
- CN
- China
- Prior art keywords
- pin
- mounting hole
- locking assembly
- lock
- state
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B9/00—Lock casings or latch-mechanism casings ; Fastening locks or fasteners or parts thereof to the wing
- E05B9/04—Casings of cylinder locks
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lock And Its Accessories (AREA)
Abstract
The invention relates to the technical field of door locks, and discloses a lock protector which comprises a lock cap, a keyhole baffle plate and a locking assembly, wherein the keyhole baffle plate is rotationally connected in the lock cap, the keyhole baffle plate is provided with a through hole for allowing a key to pass through, the lock cap is provided with a first mounting hole in the radial direction, the keyhole baffle plate is provided with a second mounting hole in the radial direction, and the locking assembly is arranged in the first mounting hole and the second mounting hole; the locking assembly comprises at least one pin, the locking assembly has a locking state and an unlocking state, and when the locking assembly is in the locking state, at least one pin simultaneously spans the first mounting hole and the second mounting hole; when the locking assembly is in an unlocking state, the marble is not spanned in the first mounting hole and the second mounting hole simultaneously. The invention provides a lock protector, which aims to improve the prying-resistant strength and the anti-theft performance of the lock protector.
Description
Technical Field
The invention relates to the field of door lock technology, in particular to a lock protector.
Background
The lock protector, also known as a keyhole protector, is used for shielding a keyhole, so that the door lock is not easy to be damaged by unscrupulous people, troubles to a user are prevented, and the lock protector is an effective safety device.
According to knowledge, the existing lock protector is composed of a shell, a keyhole baffle plate and an opening and closing control device connected with the keyhole baffle plate, a key insertion hole is formed in the approximate center of the shell, the keyhole baffle plate and the opening and closing control device are installed in the shell, the keyhole baffle plate is located at the position corresponding to the key insertion hole and can move up and down or left and right, and a screw counter bore is formed in the shell. However, the conventional lock protector has the following problems:
(1) because the keyhole baffle is not internally provided with the reinforcing device, a thief can easily pry the keyhole baffle by an unlocking tool;
(2) the lock protector is not provided with an anti-theft device for enhancing the anti-theft effect, and the door lock is easily unlocked by technically unlocking the lock.
Disclosure of Invention
The purpose of the invention is: the invention provides a lock protector, which aims to improve the prying-resistant strength and the anti-theft performance of the lock protector.
In order to achieve the purpose, the invention provides a lock protector which comprises a lock cap, a keyhole baffle plate and a locking assembly, wherein the keyhole baffle plate is rotatably connected in the lock cap, the keyhole baffle plate is provided with a through hole allowing a key to pass through, the lock cap is provided with a first mounting hole in the radial direction of the lock cap, the keyhole baffle plate is provided with a second mounting hole in the radial direction of the lock cap, and the locking assembly is arranged in the first mounting hole and the second mounting hole;
the locking assembly comprises at least one pin, the locking assembly has a locking state and an unlocking state, and when the locking assembly is in the locking state, at least one pin simultaneously spans the first mounting hole and the second mounting hole; when the locking assembly is in an unlocking state, the marble is not spanned in the first mounting hole and the second mounting hole simultaneously.
In some embodiments of the present application, the locking assembly further includes an elastic member, one end of the elastic member is connected to the inner wall of the first mounting hole, and the other end of the elastic member is connected to the pin, and when the locking assembly is in the locking state, the elastic member is in a compressed state; when the locking assembly is in the unlocked state, the elastic member is in an extended state.
In some embodiments of the present application, the locking assembly includes a first pin and a second pin, where the first pin and the second pin are pins of the locking assembly, two ends of the elastic element are respectively connected to the inner wall of the first mounting hole and the first pin, and the second pin is disposed in the through hole and the second mounting hole;
when the locking assembly is in a locking state, the first pin is arranged in the first mounting hole, the second pin is arranged in the first mounting hole and the second mounting hole in a spanning mode, and the elastic piece is in a compression state; when the locking assembly is in an unlocking state, the first pin is arranged in the first mounting hole, the second pin is arranged in the second mounting hole, and the elastic piece is in a stretching state.
In some embodiments of the present application, a lower portion of the second pin is provided with a connecting portion that is engaged with the key, and a diameter of the connecting portion gradually decreases from a direction away from the first pin.
In some embodiments of the present application, the first pin and the second pin are the same shape.
In some embodiments of the present application, the first pin and the second pin are one of triangular, square, circular, and oval in shape.
In some embodiments of this application, the lock cap includes casing, mount pad and bottom plate, the casing with the mount pad is located on the bottom plate, the casing lid fits on the mount pad, the keyhole baffle rotate connect in on the mount pad, first mounting hole is located on the mount pad, the one end of elastic component with the casing is connected.
In some embodiments of the present application, the lock cap, the keyhole baffle and the locking assembly are all made of steel.
In some embodiments of the present application, the elastic member is a spring.
The embodiment of the invention provides a lock protector, which has the following beneficial effects compared with the prior art:
the lock protector and the corresponding key are matched for use, the key is provided with a through hole allowing one end, close to the through hole, of the locking assembly to be inserted, the locking assembly has an unlocking state and a locking state, when the key matched with the lock protector is inserted into the keyhole baffle, one end, close to the through hole, of the locking assembly is inserted into the through hole of the key, the pins are not spanned in the first mounting hole and the second mounting hole simultaneously, at the moment, the locking assembly is in the unlocking state, and therefore the pins cannot block the rotation of the keyhole baffle; when a key (not a key matched with the lock protector) or an unlocking tool is inserted into the keyhole baffle, the marble simultaneously spans the first mounting hole and the second mounting hole, and at the moment, the locking assembly is in a locking state, so that when a thief rotates the keyhole baffle, the marble blocks the rotation of the keyhole baffle, and the thief cannot easily unlock the door lock through technical unlocking;
in addition, because the locking assembly plays a reinforcing role in the strength of the lock protector, the locking assembly increases the difficulty of prying the lock protector open, and therefore a thief cannot pry the keyhole baffle open easily through an unlocking tool.
Drawings
Fig. 1 is a schematic structural view of a lock guard according to an embodiment of the present invention.
Fig. 2 is an exploded view of a lock guard of an embodiment of the present invention.
Fig. 3 is a front view of the lock guard of the embodiment of the present invention.
Fig. 4 is a schematic view of the structure of fig. 3 at a-a.
Fig. 5 is a schematic view of a connection structure of the locknut and the keyhole baffle according to the embodiment of the invention.
In the figure, 1, a lock cap; 11. a housing; 12. a mounting seat; 121. a first mounting hole; 2. a keyhole baffle plate; 21. perforating; 22. a second mounting hole; 3. a locking assembly; 31. a first pin; 32. a second pin; 321. a connecting portion; 33. an elastic member.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In order to achieve the above object, as shown in fig. 1, 2, 3, 4 and 5, an embodiment of the present invention provides a lock protector, which includes a lock cap, an escutcheon plate 2 rotatably connected in the lock cap 1, the escutcheon plate 2 having a through hole for allowing a key to pass through, the lock cap 1 having a first mounting hole 121 in a radial direction thereof, the escutcheon plate 2 having a second mounting hole 22 in the radial direction thereof;
the locking component 3 comprises at least one pin, the locking component 3 has a locking state and an unlocking state, and when the locking component 3 is in the locking state, the at least one pin simultaneously straddles the first mounting hole 121 and the second mounting hole 22; when the locking assembly 3 is in the unlocked state, the pins do not straddle the first mounting hole 121 and the second mounting hole 22 simultaneously.
Based on the arrangement, the lock protector of the embodiment of the invention is adapted to a key corresponding to the lock protector, the key is provided with a through hole allowing one end of the locking component 3 close to the through hole 21 to be inserted into, the locking component 3 has an unlocking state and a locking state, when the key adapted to the lock protector is inserted into the keyhole baffle 2, one end of the locking component 3 close to the through hole 21 is inserted into the through hole of the key, the pin cannot straddle the first mounting hole 121 and the second mounting hole 22, at this time, the locking component 3 is in the unlocking state, and therefore, the pin cannot obstruct the rotation of the keyhole baffle 2; when a key (not a key matched with the lock protector) or an unlocking tool is inserted into the keyhole baffle 2, the pin tumbler simultaneously straddles the first mounting hole 121 and the second mounting hole 22, and the locking component 3 is in a locking state, so that when a thief rotates the keyhole baffle 2, the pin tumbler blocks the rotation of the keyhole baffle 2, and the thief cannot easily unlock the door lock through technical unlocking;
in addition, because the locking assembly 3 plays a role in strengthening the strength of the lock protector, the locking assembly 3 increases the difficulty of prying the lock protector open, and therefore, a thief cannot easily pry the keyhole baffle open through an unlocking tool.
In some embodiments, optionally, as shown in fig. 1, 2, 3, 4 and 5, in order to facilitate automatic resetting of the pins at the first mounting hole 121 and the second mounting hole 22 and simplify the structure of the locking assembly 3, the locking assembly 3 further includes a first pin 31, a second pin 32 and an elastic member 33, the first pin 31 and the second pin 32 are pins of the locking assembly 3, two ends of the elastic member 33 are respectively connected with the first pin 31 and the inner wall of the first mounting hole 121, and the second elastic member 33 is disposed in the second mounting hole 22 and the through hole 21;
when the part of the adapted key without the through hole is connected with one end of the second pin 32 close to the through hole 21 or the non-adapted key is inserted into the through hole 21, the elastic element 33 is in a compressed state, the first pin 31 is arranged in the mounting hole 121, the second pin 32 is simultaneously arranged in the first mounting hole 121 and the second mounting hole 22 in a spanning manner, and at the moment, the locking assembly 3 is in a locking state; when the part of the key with the through hole is connected with one end of the second pin 32 close to the through hole 21, the elastic element 33 is in an extension state, the first pin 31 is arranged in the first mounting hole 121, and the second pin 32 is arranged in the second mounting hole 22 and the through hole 21, at this time, the locking assembly 3 is in an unlocking state, that is, the first pin 31 or the second pin 32 is not simultaneously arranged in the first mounting hole 121 and the second mounting hole 22 in a straddling manner, and the first pin 31 and the second pin 32 do not influence the rotation of the keyhole baffle 2;
of course, the number of the pins may be three or more, as long as it can be ensured that the keyhole limpet 2 can rotate when the locking assembly 3 is in the unlocked state, and the keyhole limpet 2 cannot rotate when the locking assembly 3 is in the locked state.
However, the strength of the unlocking tool after the opening is reduced, and the unlocking tool after the opening is easily broken when the unlocking tool is rotated.
In some embodiments of the present application, optionally, as shown in fig. 4, the lower portion of the second pin 32 is provided with a connecting portion 321 cooperating with the key, and the diameter of the connecting portion 321 is gradually reduced from the direction away from the first pin 31. Therefore, the lower portion of the second pin 32 forms a guide portion, and the diameter of the through hole of the key fitted to the lock protector is gradually reduced from top to bottom, so that the lower portion of the second pin 32 can be quickly inserted into the through hole of the key.
In some embodiments of the present application, optionally, as shown in fig. 4, in order to facilitate the fitting of the first pin 31 and the second pin 32, the first pin 31 and the second pin 32 have the same shape.
In some embodiments of the present application, optionally, as shown in fig. 4, the shape of the first pin 31 and the second pin 32 is one of a triangle, a square, a circle and an oval, and of course, the shape of the first pin 31 and the second pin 32 may be a combination of the above shapes.
In some embodiments of the present application, optionally, as shown in fig. 1, 2, 3, 4 and 5, the locking cap 1 includes a housing 11, a mounting seat 12 and a bottom plate 13, the housing 11 and the mounting seat 12 are disposed on the bottom plate 13, and the housing 11 covers the mounting seat 12; the keyhole baffle 2 is rotatably connected to the mounting base 12, the first mounting hole 121 is formed in the mounting base 12, and one end of the elastic member 33 is connected to the housing 11. Therefore, by arranging the shell 11, the shell 11 plays a role in protecting the keyhole baffle 2 and the locking assembly 3, and prevents a thief from easily damaging the keyhole baffle 2 and the locking assembly 3; by arranging the mounting seat 12, the mounting seat 12 provides a mounting space for the keyhole baffle 2, the elastic element 33, the first pin 31 and the second pin 32, so that the keyhole baffle 2, the elastic element 33, the first pin 31 and the second pin 32 can be stably arranged; by providing the bottom plate 13, the bottom plate 13 provides a supporting force for the housing 11 and the mounting seat 12.
In some embodiments of the present application, optionally, as shown in fig. 1, 2, 3, 4 and 5, in order to prolong the service life of the lock cap 1, the keyhole limpet 2 and the locking assembly 3, the lock cap 1, the keyhole limpet 2 and the locking assembly 3 are all made of steel.
In some embodiments of the present application, the elastic member 33 is a spring, as shown in fig. 1 and 3.
To sum up, the lock protector of the embodiment of the present invention is adapted to a key corresponding to the lock protector, the key is provided with a through hole allowing one end of the locking component 3 close to the through hole 21 to be inserted into, the locking component 3 has an unlocking state and a locking state, when the key adapted to the lock protector is inserted into the keyhole baffle 2, one end of the locking component 3 close to the through hole 21 is inserted into the through hole of the key, the pin tumbler is not spanned in the first mounting hole 121 and the second mounting hole 22 at the same time, the locking component 3 is in the unlocking state, and therefore, the pin tumbler does not obstruct the rotation of the keyhole baffle 2; when a key (not a key matched with the lock protector) or an unlocking tool is inserted into the keyhole baffle 2, the pin tumbler simultaneously straddles the first mounting hole 121 and the second mounting hole 22, and the locking component 3 is in a locking state, so that when a thief rotates the keyhole baffle 2, the pin tumbler blocks the rotation of the keyhole baffle 2, and the thief cannot easily unlock the door lock through technical unlocking;
in addition, because the locking assembly 3 plays a role in strengthening the strength of the lock protector, the locking assembly 3 increases the difficulty of prying the lock protector open, and therefore, a thief cannot easily pry the keyhole baffle open through an unlocking tool.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (9)
1. A lock protector is characterized by comprising a lock cap, a keyhole baffle and a locking assembly, wherein the keyhole baffle is rotatably connected in the lock cap, the keyhole baffle is provided with a through hole allowing a key to pass through, the lock cap is provided with a first mounting hole in the radial direction of the lock cap, the keyhole baffle is provided with a second mounting hole in the radial direction of the lock cap, and the locking assembly is arranged in the first mounting hole and the second mounting hole;
the locking assembly comprises at least one pin, the locking assembly has a locking state and an unlocking state, and when the locking assembly is in the locking state, at least one pin simultaneously spans the first mounting hole and the second mounting hole; when the locking assembly is in an unlocking state, the marble is not spanned in the first mounting hole and the second mounting hole simultaneously.
2. The lock protector of claim 1, wherein the locking assembly further comprises a resilient member, one end of the resilient member being connected to an inner wall of the first mounting hole, the other end of the resilient member being connected to the pin, the resilient member being in a compressed state when the locking assembly is in the locked state; when the locking assembly is in the unlocked state, the elastic member is in an extended state.
3. The lock protector according to claim 2, wherein the locking assembly includes a first pin and a second pin, wherein the first pin and the second pin are pins of the locking assembly, both ends of the elastic member are respectively connected with an inner wall of the first mounting hole and the first pin, and the second pin is provided in the through hole and the second mounting hole;
when the locking assembly is in a locking state, the first pin is arranged in the first mounting hole, the second pin is arranged in the first mounting hole and the second mounting hole in a spanning mode, and the elastic piece is in a compression state; when the locking assembly is in an unlocking state, the first pin is arranged in the first mounting hole, the second pin is arranged in the second mounting hole, and the elastic piece is in a stretching state.
4. The lock protector of claim 1, wherein the lower portion of the second pin is provided with a connecting portion that is engaged with a key, and the diameter of the connecting portion is gradually reduced from a direction away from the first pin.
5. The lock guard of claim 1, wherein the first pin and the second pin are the same shape.
6. The lock guard of claim 4, wherein the first pin and the second pin are one of triangular, square, circular, and oval in shape.
7. The lock protector of claim 1, wherein the lock cap comprises a housing, a mounting seat and a bottom plate, the housing and the mounting seat are disposed on the bottom plate, the housing covers the mounting seat, the keyhole baffle is rotatably connected to the mounting seat, the first mounting hole is disposed on the mounting seat, and one end of the elastic member is connected to the housing.
8. The lock guard of claim 1, wherein the lock cap, the escutcheon plate, and the locking assembly are all steel.
9. The lock guard of claim 1 wherein the resilient member is a spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110642009.2A CN113202343A (en) | 2021-06-09 | 2021-06-09 | Lock protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110642009.2A CN113202343A (en) | 2021-06-09 | 2021-06-09 | Lock protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113202343A true CN113202343A (en) | 2021-08-03 |
Family
ID=77024732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110642009.2A Pending CN113202343A (en) | 2021-06-09 | 2021-06-09 | Lock protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113202343A (en) |
-
2021
- 2021-06-09 CN CN202110642009.2A patent/CN113202343A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6564596B2 (en) | Door lock assembly with multiple latch devices | |
| JP4443761B2 (en) | padlock | |
| US11866962B2 (en) | Security locking assembly for shipping container doors | |
| US5249444A (en) | Door assembly including swivel latch | |
| KR20100043426A (en) | Auto locking device of window | |
| CN113202343A (en) | Lock protector | |
| CN219931870U (en) | Lock protector | |
| EP3276111A1 (en) | Lock with a slide for covering lock core | |
| EP1707710B1 (en) | Non-destructible cylinder lock | |
| CN212867161U (en) | Safety lock core and safety lock | |
| CN212583462U (en) | Seamless stable padlock | |
| CN217233098U (en) | Lock core | |
| WO2022243743A1 (en) | Security locking assembly for shipping container doors | |
| US6053547A (en) | Sliding door locking device | |
| CN110131290B (en) | Screw locking lockset | |
| CN107630596B (en) | Anti-picking lock body for anti-theft door | |
| CN113236034A (en) | Lock core | |
| JP3169936B2 (en) | Lock device for doors located inside and behind | |
| CN101183773A (en) | Safety device for embedding installed motor mechanism | |
| EP3048226B1 (en) | Lock cylinder replaceable padlock | |
| KR102470773B1 (en) | Locking device with improved pin cover | |
| CN221169065U (en) | Cabinet door cipher latch lock | |
| CN221220096U (en) | Padlock unlocked by lock core | |
| RU2132436C1 (en) | Key hole protective device | |
| CN100594284C (en) | Lockset for tool box |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |