Anti-theft protection device for split-type double-door-handle lock

Abstract

Anti-theft protection device for a split-type double door handle lock which comprises first body 1 hinged to a second body 4 for rotation about shaft (3, fig.3). The first body includes first and second notches 102 for shaft of respective first and second door handles. The first and second bodies form a cavity accommodating grips of pair of handles. Preferably the first part includes a hole (101) in which is locatable a hook (601) a sliding lock (6) with user accessible slider 7. First and second bodies may include cushion linings.

Description

RELATED APPLICATION

[0001] This application claims the priority of China patent application, titled “Anti-theft Protection Device for Split-type Double-door-handle Lock”, with application No. CN202323305680.1 filed on Dec. 5, 2023, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present disclosure relates to the technical field of door locks, in particular to an anti-theft protection device for a split-type double-door-handle lock. BACKGROUND

[0003] Split-type double-door-handle lock is a common door lock in daily life. This door lock is equipped with handles on both door panels. Usually, one handle is fixed and cannot be rotated, and the other handle is connected with the lock body, which can be unlocked after rotation. The structure thereof includes a pivot part perpendicular to the door panel, and a grip part connected to the outer end of the pivot part and extending to one side. At present, this kind of double-door-handle lock can basically meet the daily locking requirements. However, when the internal deadbolt is damaged by an external force or the lock is artificially damaged, the door can be opened, or when the key is lost, the door cannot be locked, and strangers outside the door can easily press the handle to open the door, which has the problem of poor anti-theft effect. Therefore, an anti-theft protection device for this split-type double-door-handle lock is urgently needed to solve the above problems. SUMMARY

[0004] The present disclosure provides an anti-theft protection device for a split-type double-door-handle lock to solve the problem that the door can be opened after the lock body is damaged for the existing double-door-handle lock, and the anti-theft effect is poor.

[0005] The technical solution of the present disclosure is realized as follows:

[0006] The present disclosure relates to an anti-theft protection device for a split-type double-door-handle lock, which includes a first lock body and a second lock body which are hinged with each other, wherein the first lock body and the second lock body are provided with locking structures capable locking the two lock bodies on the sides far from a hinge shaft; the first lock body is provided with two notches on the side far away from the hinge shaft; after locking, the first lock body and the second lock body form an integral structure with a cavity for accommodating handles; pivot parts of split-type double-door handles are located at the two notches and a grip part is located in the cavity, thus locking the double-door handles.

[0007] Preferably, the locking structure includes a lock hole provided at an edge position of the first lock body and a deadbolt slidably installed inside the second lock body; an edge position of the deadbolt is provided with a lock hook capable of being inserted into the lock hole; after the lock hook is inserted into the lock hole, the first lock body and the second lock body are locked.

[0008] Preferably, the locking structure further includes a shifting block which is connected with the deadbolt and extends to the outside of the second lock body.

[0009] Preferably, the shifting block is provided with an indication mark for assisting locking and unlocking.

[0010] Preferably, two first linings are installed inside the first lock body, and the first linings cover an inner wall of the first lock body and the edges of the notches.

[0011] Preferably, two second linings are installed inside the second lock body, and the edge positions of the second linings are integrally connected with protective strips corresponding to the positions of the notches of the first lock body, the protective strips being in contact with the edges of the second linings.

[0012] Preferably, an edge position of the second lock body is provided with a protrusion protruding outwards, and the edge position of the first lock body is provided with a groove corresponding to the position of the protrusion; and the protrusion is located in the groove when the first lock body and the second lock body are closed.

[0013] Preferably, a toggling member protruding outwards is provided at a position outside the second lock body.

[0014] Preferably, the cross-sectional shapes of the first lock body and the second lock body are semicircular, and the first lock body and the second lock body form a cylindrical structure after being closed.

[0015] Preferably, the lock hook includes a base provided corresponding to the protrusion and an extend-in part provided at one side of the base along a sliding direction of the deadbolt.

[0016] By adopting the technical solution, the present disclosure has the following beneficial effects:

[0017] The present disclosure is simple in design structure and convenient to use, and the two door handles can be wrapped after closing the first lock body and the second lock body in the door, thus avoiding the problem that an external stranger can easily open the door because the key is lost and the door cannot be locked, and also avoiding the problem that the door is unlocked after the lock body is damaged, thereby preventing the invasion of thieves. The present disclosure has the advantages of simple operation and good anti-theft effect. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to explain the technical solution of this application more clearly, the drawings needed in the implementation will be briefly introduced below. Obviously, the drawings described below are only some implementations of this application. Forthose skilled in the art, other drawings can be obtained according to these drawings without creative work.

[0019] FIG. 1 is a perspective view of an embodiment of the present disclosure in a closed state;

[0020] FIG. 2 is an elevational view of an embodiment of the present disclosure in an unfolded state;

[0021] FIG. 3 is an exploded view for realizing an embodiment of the present disclosure;

[0022] FIG. 4 is a sectional view for realizing an embodiment of the present disclosure;

[0023] FIG. 5 is a schematic diagram of the connection structure between the second lock body and the second lining for implementing the embodiment of the present disclosure;

[0024] FIG. 6 is a perspective view of a deadbolt for implementing an embodiment of the present disclosure;

[0025] FIG. 7 is a schematic structural diagram of a first lock body and a deadbolt cooperating to implement the embodiment of the present disclosure;

[0026] FIG. 8 is an enlarged view of a in FIG. 7;

[0027] FIG. 9 is a perspective view of a first lock body for implementing an embodiment of the present disclosure;

[0028] FIG. 10 is a perspective view of a shifting block for implementing an embodiment of the present disclosure;

[0029] FIG. 11 is an unlocked state diagram when installed on a door handle for implementing an embodiment of the present disclosure;

[0030] FIG. 12 is a locked state diagram when installed on a door handle for implementing an embodiment of the present disclosure;

[0031] FIG. 13 is a schematic structural diagram of a spit-type double-door handle for implementing the embodiment of the present disclosure.

[0032] Reference signs:

[0033] 1, First lock body; 101, Lock hole; 102, Notch; 2, First lining; 3, Rotating shaft; 4, Second lock body; 401, Toggling member; 402, Protrusion; 5, Second lining; 501, Protective strip; 6, Deadbolt; 601, Lock hook; 602, Base; 603, Extend-in part; 7, Shifting block; 701, Indication mark, 8, Pivot part; 9, Grip part. DESCRIPTION OF EMBODIMENTS

[0034] The technical solution in the embodiment of the application will be clearly and completely described below with reference to the drawings in the embodiment of the application. Obviously, the described embodiment is only part of, rather than all of the embodiments of the application. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative labor shall belong to the protection scope of this application.

[0035] Reference to "an example" or "an embodiment" herein means that a particular feature, structure or characteristic described in connection with an embodiment or an embodiment can be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. It is appreciated explicitly and implicitly by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0036] In this specification, for the sake of convenience, words and expressions indicating orientation or positional relationship such as "middle", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "inner" and "outer" are used to illustrate the positional relationship of constituent elements with reference to the attached drawings, only for the convenience of description. The positional relationship of the constituent elements is appropriately changed according to the direction of the described constituent elements. Therefore, it is not limited to the words and expressions described in the specification, and can be replaced appropriately according to the situation.

[0037] As shown in FIG. 1 to FIG. 13, an anti-theft protection device for a split-type doubledoor-handle lock includes a first lock body 1 and a second lock body 4 which are hinged with each other. The first lock body 1 and the second lock body 4 are connected through a rotating shaft 3, so that the first lock body 1 and the second lock body 4 have the freedom to rotate relative to the rotating shaft 3.

[0038] The first lock body 1 and the second lock body 4 are provided with locking structures on the sides far away from the hinge shaft, which can lock the two lock bodies, that is, the first lock body 1 and the second lock body 4 have a relatively unfolded state and a relatively closed state. In the closed state, the locking structures can lock the two lock bodies to prevent the two lock bodies from unfolding.

[0039] The first lock body 1 is provided with two notches 102 on the side far away from the hinge shaft. After locking, the first lock body 1 and the second lock body 4 form an integral structure with a cavity for accommodating the handles. The pivot parts 8 of the split-type double-door handle are located in the two notches 102, and a grip part 9 is located in the cavity, thus locking the double-door handles. In the locked state of the anti-theft protection device, the pivot parts 8 of the handles are located in the notches 102, and the grip part 9 of the handle enters the cavity formed by the two lock bodies, wherein the size and shape of the cavity are designed to accommodate the grip part 9 of the double-door handle. In this way, the grip part 9 is also effectively fixed by the first lock body 1 and the second lock body 4, so that the grip part 9 cannot be rotated or operated, and the door can be prevented from being opened after the handle is pressed, and at the same time, the door can be prevented from being easily opened after the door lock is damaged.

[0040] It can be appreciated that the anti-theft protection device physically fixes the pivot part 8 and the grip part 9 of the double-door handle, thus effectively preventing malicious unlocking and vandalism, improving the safety of the door lock, and enabling users to use the split-type double-door-handle lock with more confidence.

[0041] Specifically, the locking structure includes a lock hole 101 provided at the edge position of the first lock body 1 and a deadbolt 6 slidably installed inside the second lock body 4. The edge position of the deadbolt 6 is provided with a lock hook 601 that can be inserted into the lock hole 101, After the lock hook 601 is inserted into the lock hole 101, the first lock body 1 and the second lock body 4 are locked.

[0042] In this embodiment, the lock hole 101 can be circular, square or other shapes, and the lock hook 601 is adapted to the shape of the lock hole 101. The selection for the position of the lock hole 101 and the lock hook 601 ensures that the lock hook 601 can be inserted into the lock hole 101 smoothly and accurately when the first lock body 1 and the second lock body 4 are closed.

[0043] In this embodiment, when the user closes the first lock body 1 and the second lock body 4, the notch 102 and the cavity between them respectively accommodate the pivot part 8 and the grip part 9 of the double-door handle. Then, by operating the deadbolt 6, the user aligns the lock hook 601 on the deadbolt 6 with the lock hole 101 on the first lock body 1 and inserts the lock hook 601 into the lock hole 101. Once the lock hook 601 is completely inserted into the lock hole 101, the first lock body 1 and the second lock body 4 are firmly connected together, achieving an effective lock on the double-door handle. At this time, even if someone tries to open the door lock by rotating the grip part 9, it cannot be successful.

[0044] More specifically, in order to improve the locking effect, the number of lock holes 101 on the edge of the first lock body 1 is at least three, and the number of lock hooks 601 on the edge of the deadbolt 6 is at least three. After the deadbolt 6 is translated, the lock hooks 601 can be locked into the lock holes 101 to prevent the first lock body 1 from being separated from the second lock body 4.

[0045] Specifically, the locking structure also includes a shifting block 7 connected with the deadbolt 6 and extending to the outside of the second lock body 4, and the shifting block 7 is used to drive the deadbolt 6 to move horizontally inside the second lock body 4, which is convenient for operation. More specifically, in the initial state, the deadbolt 6 may be in the unlocked position, and the shifting block 7 extends to the outside of the second lock body 4, so that the user can conveniently operate the shifting block 7. When the user needs to operate the shifting block 7 to lock the first lock body 1 and the second lock body 4, the user first closes the first lock body 1 and the second lock body 4, so that the notch 102 and the cavity between them respectively accommodate the pivot part 8 and the grip part 9 of the double-door handle. Then, the user drives the deadbolt 6 to move by pushing or pulling the shifting block 7, so that the lock hook 601 on the deadbolt 6 is aligned with the lock hole 101 on the first lock body 1 and inserted into the lock hole 101. Once the lock hook 601 is completely inserted into the lock hole 101, the first lock body 1 and the second lock body 4 are firmly connected together, forming an effective lock on the double-door handle. At this time, the shifting block 7 can be kept in the locked position to prevent other users from operating and avoid stealing. When unlocking is needed, the user only needs to operate the shifting block 7 again to drive the deadbolt 6 to move reversely, so that the lock hook 601 can be disengaged from the lock hole 101.

[0046] In addition, in another embodiment, the deadbolt 6 can also be locked or unlocked by the thumbwheel coded lock, that is, the deadbolt 6 can only be moved when the password is correct. The locking structure and principle of this thumbwheel coded lock belong to the conventional technology in the prior art, which will not be described in detail here.

[0047] Specifically, the shifting block 7 is provided with an indication mark 701 for assisting locking and unlocking, so as to facilitate the user to distinguishing the locking and unlocking directions.

[0048] In this embodiment, the indication mark 701 can take various forms, such as arrows, characters, symbols or color coding, to ensure that users can clearly see it under different lighting conditions. When the user needs to lock the door, he can determine whether to push or pull the shifting block 7 and the direction of pushing or pulling by observing the indication mark 701 on the shifting block 7. It can be ensured that the lock hook 601 on the deadbolt 6 can be accurately inserted into the lock hole 101, thus achieving locking. Similarly, in the unlocking process, the user can also operate the shifting block 7 according to the indication mark 701 to ensure that the deadbolt 6 can move correctly, so that the lock hook 601 can be disengaged from the lock hole 101.

[0049] Specifically, two first linings 2 are installed inside the first lock body 1. The first linings 2 cover the inner wall of the first lock body 1 and the edges of the notches 102. The first linings 2 are used to prevent the handle on the door panel from directly contacting the first lock body 1 after locking. The first linings 2 are used as the parts that directly contact the handle, which can not only prevent the first lock body 1 from being damaged after colliding with the handle for a long time, but also improve its sealing performance and prevent dust, moisture and other impurities from entering the first lock body 1 and affecting the normal operation of the lock.

[0050] Specifically, two second linings 5 are installed inside the second lock body 4, and the edge positions of the second linings 5 are integrally connected with protective strips 501 corresponding to the positions of the notches 102 of the first lock body 1. The protective strips 501 are in contact with the edges of the second linings 5, which has the same function as the above-mentioned first linings 2. On the one hand, it is to avoid the damage of the second lock body 4 caused by the contact between the handle and the inner wall of the second lining 5, and on the other hand, the edge of the second lock body 4 can be protected by the protective strip 501, and when the handle contacts the edge of the second lock body 4, the protective strip 501 plays a protective role.

[0051] Specifically, the edge position of the second lock body 4 is provided with a protrusion 402, and the edge position of the first lock body 1 is provided with a groove corresponding to the protrusion 402. When the first lock body 1 and the second lock body 4 are closed, the protrusion 402 is placed in the groove. The hinged ends of the two lock bodies can limit their axial movement, and the arrangement of the protrusion 402 and the groove can make the ends of the two lock bodies far away from the hinged shaft can also limit their axial movement, thus avoiding the problem of relative movement of the two lock bodies.

[0052] In this embodiment, the shape, size and position of the groove and the protrusion 402 are designed correspondingly to ensure that the first lock body 1 and the second lock body 4 can cooperate with each other after being closed. Specifically, when the two lock bodies are closed, the protrusion 402 will slide along a predetermined path and be embedded in the groove. This arrangement ensures the tight connection between the first lock body 1 and the second lock body 4, and prevents the looseness or separation caused by external impact or vibration.

[0053] Specifically, a toggling member 401 protruding outwards is provided at a position outside the second lock body 4. In this example, the toggling member 401 is integrally connected to the outer side of the second lock body 4, and the length of the toggling member 401 is the same as that of the second lock body 4, so that the toggling member 401 can be toggled to rotate the second lock body 4 relative to the first lock body 1 after the two locks are unlocked.

[0054] Specifically, the cross-sectional shapes of the first lock body 1 and the second lock body 4 are semi-circular, and the first lock body 1 and the second lock body 4 are closed to form a cylindrical structure, which has the advantage of beautiful structure. In addition, the shapes of the two lock bodies can also adopt regular polygonal structure, oval structure and the like.

[0055] More specifically, the lock hook 601 includes a base 602 and an extend-in part 603. The base 602 is provided corresponding to the protrusion 402, and the extend-in part 603 is provided at one side of the base 602 along the sliding direction of the deadbolt 6.

[0056] Wherein, the base 602 is adapted to the shape of the protrusion 402, and the inside of the protrusion 402 is a cavity structure, so that the base 602 is located inside the protrusion 402. When the deadbolt 6 slides in the second lock body 4, the extend-in part 603 can extend out of or retract into the protrusion 402; further, when the first lock body 1 and the second lock body 4 are rotated and closed, the protrusion 402 of the second lock body 4 will correspondingly be located in the groove of the first lock body 1, that is, the lock hook 601 will follow the protrusion 402 and be located in the groove, wherein the lock hole 101 is disposed on the wall surface of the groove of the first lock body 1, by which the extend-in part 603 of the lock hook 601 can be inserted into the lock hole 101 when sliding out of the protrusion 402, so that the first lock body 1 and the second lock body 4 cannot rotate relatively, and the locking function of the first lock body 1 and the second lock body 4 is realized

[0057] It should be appreciated that when the anti-theft protection device for a split-type double-door-handle lock is used, after the door is closed, the notches 102 of the first lock body 1 can be aligned with the pivot parts 8 of the two door handles in the door, the grip part 9 of the handle can be placed inside the first lock body 1, and then the second lock body 4 is rotated to make the two lock bodies in a closed state. Then the deadbolt 6 inside the second lock body 4 can be driven to move by moving the shifting block 7. The lock hook 601 on the deadbolt 6 can be clamped into the lock hole 101 of the first lock body 1 to complete the locking work of the anti-theft protection device. In this state, because the grip parts 9 of the two handles are in the same cavity, even if the handle outside the door is pressed, the door will not be unlocked, and even if the door lock is broken, the door will not be opened when a stranger pushes the door hard, which has the advantages of simple structure, convenient operation and good anti-theft effect.

[0058] The technical means disclosed in the solution of the present disclosure are not limited to the technical means disclosed in the above embodiments, but also include the technical solutions composed of any combination of the above technical features. It should be pointed out that for those skilled in the art, several improvements and embellishments can be made without departing from the principle of the present disclosure, and these improvements and embellishments are also regarded as falling within the protection scope of the present disclosure.

Claims

What is claimed is:

1. An anti-theft protection device for a split-type double-door-handle lock, comprising a first lock body (1) and a second lock body (4) which are hinged with each other, characterized in that the first lock body (1) and the second lock body (4) are provided with locking structures capable locking the two lock bodies on the sides far from a hinge shaft; andthe first lock body (1) is provided with two notches (102) on the side far away from the hinge shaft; andafter locking, the first lock body (1) and the second lock body (4) form an integral structure with a cavity for accommodating handles; pivot parts (8) of split-type doubledoor handles are located at the two notches (102) and a grip part (9) is located in the cavity, thus locking the double-door handles.

2. The anti-theft protection device for a split-type double-door-handle lock according to claim 1, characterized in that the locking structure comprises a lock hole (101) provided at an edge position of the first lock body (1) and a deadbolt (6) slidably installed inside the second lock body (4); andan edge position of the deadbolt (6) is provided with a lock hook (601) capable of being inserted into the lock hole (101); andafter the lock hook (601) is inserted into the lock hole (101), the first lock body (1) and the second lock body (4) are locked.

3. The anti-theft protection device for a split-type double-door-handle lock according to claim 2, characterized in that the locking structure further comprises a shifting block (7) which is connected with the deadbolt (6) and extends to the outside of the second lock body (4).

4. The anti-theft protection device for a split-type double-door-handle lock according to claim 3, characterized in that the shifting block (7) is provided with anindication mark (701) for assisting locking and unlocking.

5. The anti-theft protection device for a split-type double-door-handle lock according to claim 1, characterized in that two first linings (2) are installed inside the first lock body (1), and the first linings (2) cover an inner wall of the first lock body (1) and the edges of the notches (102).

6. The anti-theft protection device for a split-type double-door-handle lock according to claim 1, characterized in that two second linings (5) are installed inside the second lock body (4), and the edge positions of the second linings (5) are integrally connected with protective strips (501) corresponding to the positions of the notches (102) of the first lock body (1), the protective strips (501) being in contact with the edges of the second linings (5).

7. The anti-theft protection device for a split-type double-door-handle lock according to claim 2, characterized in that an edge position of the second lock body (4) is provided with a protrusion (402) protruding outwards, and the edge position of the first lock body (1) is provided with a groove corresponding to the position of the protrusion (402); and the protrusion (402) is located in the groove when the first lock body (1) and the second lock body (4) are closed.

8. The anti-theft protection device for a split-type double-door-handle lock according to claim 1, characterized in that a toggling member (401) protruding outwards is provided at a position outside the second lock body (4).

9. The anti-theft protection device for a split-type double-door-handle lock according to claim 1, characterized in that the cross-sectional shapes of the first lock body (1) and the second lock body (4) are semicircular, and the first lock body (1) and the second lock body (4) form a cylindrical structure after being closed.

10. The anti-theft protection device for a split-type double-door-handle lock according to claim 7, characterized in that the lock hook (601) comprises a base (602) provided corresponding to the protrusion (402) and an extend-in part (603) provided at one side of the base (602) along a sliding direction of the deadbolt (6).Application No: GB2416765.2 Examiner: Ben MunnsClaims searched: 1-10Date of search: 17 April 2025Patents Act 1977: Search Report under Section 17Documents considered to be relevant:Category Relevant to claims Identity of document and passage or figure of particular relevance A - GB 2518773 A (BOWMAN ALAN) A - US 2014 / 0103668 Al (MCKINNEY) A - US 6018968 A (SIDES) A - US 5590682 A (FISCHER) A - US 1850602 A (PINEO) A - DE 202008011884 UI (HOFMANN JOERG)Categories:X Document indicating lack of novelty or inventive step A Document indicating technological background and / or state of the art. Y Document indicating lack of inventive step if P Document published on or after the declared priority date but combined with one or more other documents of same category. before the filing date of this invention. & Member of the same patent family E Patent document published on or after, but with priority date earlier than, the filing date of this application.Field of Search:International Classification:Subclass Subgroup Valid From E05B 0013 / 08 01 / 01 / 2006 E05C 0007 / 04 01 / 01 / 2006 E05C 0019 / 18 01 / 01 / 2006

Images