Emergency quick-opening anti-theft lock

Abstract

The utility model discloses an emergency quick-opening anti-theft lock which comprises a lock body shell, and a rotating piece, a latch bolt, a dead bolt, a dead bolt locking piece and a dead bolt pushing piece are arranged in the lock body shell. The rotating piece is provided with a latch bolt shifting piece for pushing the latch bolt to retract; the dead bolt locking piece is rotationally arranged in the lock body shell, makes contact with the dead bolt and limits the dead bolt to move in the direction extending out of the lock body. The dead bolt pushing piece is rotatably arranged in the lock body shell; the rotating part forms a first shifting part and a second shifting part, and the first shifting part rotates along with the rotating part and drives the dead bolt locking part to be separated from the dead bolt in any rotating direction; the second shifting piece rotates along with the rotating piece and drives the dead bolt pushing piece to push and abut against the dead bolt in a single direction; and the dead bolt is slidably matched with a heaven and earth hook, the dead bolt locking piece is separated from the dead bolt, and the dead bolt moves relative to the heaven and earth hook. A door can be opened by pressing down the handle and can be locked by lifting up the handle, and after the door is locked, the dead bolt is shifted to retract through rotation of the lock cylinder or the heaven and earth hook is shifted to open the door after the handle is pressed down.

Description

Technical Field

[0001] This utility model relates to the field of locks, specifically to an emergency quick-opening anti-theft lock. Background Technology

[0002] Security door locks and lock cylinders work together to form a mechanism that can lock the door. While locks provide security, they can also hinder rescue efforts in emergency situations.

[0003] Traditional locks, when the handle is pressed down from the inside of the door, can only open the latch bolt, while the lock cylinder can control both the latch bolt and the square bolt. When picking this type of lock, the only way to open the door is to break the lock cylinder and make it turn. If the lock cylinder itself has anti-pry function and the lock also has a deadbolt structure, the difficulty of picking the lock and breaking the door will increase sharply.

[0004] There is another type of lock where pulling the handle upwards from the inside of the door extends the main lock, while pressing the handle downwards retracts it. This type of lock is easy to use and can be quickly opened using the peephole method, making it convenient for opening doors in emergency situations such as rescue operations. However, it also poses a safety hazard. Utility Model Content

[0005] This utility model aims to at least partially solve one of the technical problems in the aforementioned technologies. Therefore, the purpose of this utility model is to provide a lock that cannot be opened through the peephole under normal circumstances, but can be quickly opened in an emergency by combining it with a peephole-picking tool.

[0006] To achieve the above objectives, embodiments of this utility model provide an emergency quick-opening anti-theft lock, comprising:

[0007] The lock body shell contains a rotating component, a slanted latch, a square latch, a square latch locking component, and a square latch pushing component.

[0008] The rotating component is equipped with a tongue-pulling mechanism that pushes the tongue to retract;

[0009] The square latch locking element is rotatably located inside the lock body housing, contacting the square latch and restricting its movement in the direction of extending out of the lock body;

[0010] The square tongue pusher is rotatably located inside the lock body housing;

[0011] The rotating component forms a first actuating component and a second actuating component. The first actuating component rotates with the rotating component and drives the square tongue locking component to disengage from the square tongue in any rotation direction. The second actuating component rotates with the rotating component and drives the square tongue pushing component to push against the square tongue in a single direction.

[0012] Square tongue: It can slide with a top and bottom hook. When the square tongue locking part is out of contact with the square tongue, the square tongue and the top and bottom hooks move relative to each other.

[0013] According to the embodiments of the present utility model, the emergency quick-opening anti-theft lock can open the door by pressing down the handle and lock the door by lifting the handle. After locking the door, the square tongue can be retracted by rotating the lock cylinder or by pressing down the handle and moving the top and bottom hooks to retract the square tongue to open the door.

[0014] In addition, the emergency quick-opening anti-theft lock proposed in the above embodiments of this utility model may also have the following additional technical features:

[0015] Optionally, the first actuating member and the second actuating member are cylinders, corresponding to a first groove formed on the square tongue locking member to cooperate with the first actuating member; and a second groove formed on the square tongue pushing member to cooperate with the second actuating member.

[0016] Furthermore, one side of the first groove is an arc-shaped protrusion toward the first actuating member.

[0017] Optionally, one side of the second groove is curved, and the other side is straight.

[0018] Optionally, a tension spring is provided between the square tongue pusher and the lock body housing, and the tension spring maintains the square tongue pusher in a fixed position.

[0019] Optionally, it also includes a latch, which extends and retracts via a knob located on one side of the lock body housing. Attached Figure Description

[0020] Figure 1 This is a diagram showing the initial positions of the first actuating member, the square tongue locking member, and the square tongue according to an embodiment of the present invention.

[0021] Figure 2 for Figure 1 A schematic diagram showing the state of a handle when it is pressed down;

[0022] Figure 3 for Figure 1 A diagram illustrating the state of the handle when it is lifted;

[0023] Figure 4 This is a first-order diagram showing the initial positions of the actuating member, the square tongue pushing member, and the square tongue according to an embodiment of the present invention.

[0024] Figure 5 for Figure 4 A schematic diagram showing the state of a handle when it is pressed down;

[0025] Figure 6 for Figure 4 A diagram showing the state when the handle is lifted.

[0026] Label Explanation:

[0027] Lock body shell 1

[0028] Rotating component 2, square hole 21, oblique tongue actuating component 22, first actuating component 23, second actuating component 24

[0029] Square tongue locking component 3, first groove 31, locking piece 32

[0030] Square tongue pusher 4, second groove 41, tension spring 42

[0031] Square tongue 5 limiting groove 51

[0032] oblique tongue 6

[0033] 7 sliding grooves of the top and bottom hooks 71

[0034] Lock cylinder dial 8. Detailed Implementation

[0035] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0036] This utility model allows you to open the door by pressing down the handle and lock the door by lifting the handle. After locking the door, you can retract the square latch by rotating the lock cylinder or by pressing down the handle and moving the top and bottom hooks to retract the square latch and open the door.

[0037] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0038] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0039] Figures 1 to 6This invention relates to an emergency quick-opening anti-theft lock based on an embodiment of the present invention. The technical basis of this lock comes from the existing "double-quick lock" on the market, which allows the door to be opened by pressing down the handle from the inside and locked by lifting the handle from both the inside and outside. This lock allows the door to be locked by lifting the handle from both the inside and outside, but a key is required to open it after locking. Pressing down the handle from the inside will not unlock the door. However, when necessary, pressing down the handle from the inside allows the door to be unlocked by moving the deadbolt 7. The purpose of this design is that, in some specific situations, only a partial opening of the lock body or door leaf is needed to expose the position of the deadbolt 7 linkage, which can quickly unlock the door. Compared with technically opening the lock cylinder or forcibly twisting the lock cylinder, this reduces the technical difficulty of operation and significantly speeds up the opening process compared with directly prying the deadbolt 7 locked door.

[0040] To achieve the above effects, the lock body has the following structure: the lock body shell 1 is made of two shells joined together. One side of the joined shell is open and covered with a steel sheet to form a panel that contacts the door frame. Through holes are formed on the panel for various types of latches to extend out.

[0041] In the lock body shell 1, a rotating part 2 is rotatably provided. A torsion spring is provided between the rotating part 2 and the lock body shell 1. The force of the torsion spring keeps the rotating part 2 at a specific rotation angle. There is a square hole 21 in the middle of the rotating part 2. The function of the square hole 21 is to pass through the square steel column. The square steel column is connected to the door handle. That is, the rotation of the door handle drives the rotating part 2 to rotate.

[0042] The rotating part 2 has a slanted tongue 6 and a toggle part 22, which is used to push the slanted tongue 6 to retract. The slanted tongue 6 can move axially in the lock body shell 1. This is the structure that opens the door by pressing down the handle. Since this type of structure is existing technology, it will not be described in detail here.

[0043] On one side of the rotating member 2, two cylinders are formed to actuate different components. One cylinder is the first actuating member 23, which actuates a square latch locking member 3 that is rotatable and is located in the lock body housing 1. The square latch locking member 3 has a first groove 31 near the first actuating member 23. When the first actuating member 23 is in the reset state, it is located at the bottom end of the first groove 31. When the first actuating member 23 rotates, it will push the square latch locking member 3 to rotate, whether it rotates downward or upward. The rotation in the two states is in the same direction.

[0044] To reduce the travel of the square tongue locking member 3 and improve the feel, one side of the first groove 31 can be set as a raised arc shape.

[0045] The square tongue locking member 3 has a locking piece 32 at the other end of its own rotation axis. The locking piece 32 is bent. In the normal state, the locking piece 32 is inserted into the limiting groove 51 formed by the square tongue 5, which restricts the movement of the square tongue 5. When the first actuating member 23 moves and causes the square tongue locking member 3 to leave the limiting groove 51, the square tongue 5 can move without obstruction.

[0046] Another cylinder on the rotating member 2 is the second actuating member 24, which is used to actuate another one. It is rotatably set in the lock body housing 1, but is on a different layer from the square tongue locking member 3. The square tongue pushing member 4 has a second groove 41 that cooperates with the second actuating member 24. However, the second groove 41 is different from the first groove 31. One side of the second groove 41 is curved and the other side is set to be straight. In this way, the square tongue pushing member 4 can only be pushed to rotate when the second actuating member 24 moves to the other side. After the square tongue pushing member 4 rotates, the other end can push the square tongue 5 to extend. A tension spring 42 pulls the square tongue pushing member 4 to maintain it in a specific position. This position does not contact the second actuating member 24 in the reset state, nor does it contact the square tongue 5.

[0047] Combining the above scheme, when the rotating part 2 rotates in a specific direction, it pushes the square tongue pusher 4 to rotate, causing the square tongue 6 to extend and realize the locking action; when rotating in any direction, it can apply pressure to the square tongue locking part 3 so that it contacts the limit of the square tongue 5. In order to prevent the above two actions from conflicting when rotating in the same direction, when the first toggle part 23 rotates, it needs to contact the square tongue locking part 3 first to unlock the square tongue 5, and then the second toggle part 24 contacts the square tongue pusher 4 to push the square tongue 5 out.

[0048] Unlocking, as mentioned above, relies on moving the top and bottom hooks 7; or, using a key to rotate the lock cylinder. The solution for unlocking by moving the top and bottom hooks 7 is to provide a sliding groove 71 at the end of the top and bottom hooks 7. The sliding groove 71 has an angle relative to its direction of movement, and the corresponding square tongue 5 has a square tongue linkage rod that can slide in the sliding groove 71. In this way, the square tongue 5 and the top and bottom hooks 7, which were originally on different layers of the same plane and moving perpendicularly to each other, are linked by the square tongue linkage rod. Existing locks only allow the square tongue 5 to move, driving the top and bottom hooks 7, but not in the opposite direction; this lock is significantly different in this respect.

[0049] The method of unlocking using the lock cylinder is as follows: a protrusion is provided at the lower part of the square tongue 5, which can be moved by the lock cylinder dial 8. Correspondingly, the limiting groove 51 in the aforementioned square tongue 5 is also processed into a structure similar to a right triangle. One of the two right-angled sides of the triangle is the base, and the other is on the side of the square tongue 5 closer to the baffle. The hypotenuse is on the side away from the baffle. In this way, when the lock cylinder rotates, the square tongue 5 retracts more easily because it slides on the hypotenuse of the triangle. This structure can also be referenced from existing locks.

[0050] The above solutions, when combined, enable the door handle to rotate, driving the rotating component 2. If the door handle is pulled upwards, the rotating component 2 unlocks the square latch locking component 3, and then the square latch pushing component 4 pushes out the square latch 6, thus locking the door. When the door handle is pressed down, with the square latch 5 unlocked, the oblique latch 6 retracts to open the door. When the square latch 5 is already extended and locked, in addition to using the lock cylinder to rotate and open the door, the deadbolt 7 can be moved to retract the square latch 5. Combined with peephole unlocking tools, partial dismantling or other methods can be used to move the deadbolt 7 to open the door, bypassing the steps of targeting the lock cylinder or violent unlocking. Compared to prying the door with a crowbar and cutting the deadbolt 7, the operation time is also greatly reduced.

[0051] Existing locks generally also have a "locking latch" for indoor mechanical deadbolts that are not linked to other structures. This lock can also have this feature, but since it is an existing structure, it will not be described in detail here.

[0052] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0053] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0054] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0055] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An emergency quick open anti-theft lock, characterized in that: Comprising A lock body housing, inside which are provided a rotating member, a latch, a square tongue, a square tongue locking member and a square tongue pushing member; The rotating member is provided with a latch pushing member for pushing the latch to retract; The square tongue locking member is rotatably provided in the lock body housing, contacts the square tongue and limits the movement of the square tongue in the direction of extending out of the lock body; The square tongue pushing member is rotatably provided in the lock body housing; The rotating member forms a first pushing member and a second pushing member, the first pushing member rotates with the rotating member and drives the square tongue locking member to disengage from the square tongue in any direction of rotation; the second pushing member rotates with the rotating member and drives the square tongue pushing member to push the square tongue in a single direction; The square tongue is slidably matched with a top and bottom hook, the square tongue locking member disengages from the square tongue, and the square tongue moves relative to the top and bottom hook.

2. The emergency quick-opening anti-theft lock of claim 1, wherein: The first pushing member and the second pushing member are cylindrical, and a first groove corresponding to the first pushing member is formed on the square tongue locking member; a second groove corresponding to the second pushing member is formed on the square tongue pushing member.

3. The emergency quick-opening anti-theft lock of claim 2, wherein: One side of the first groove is convexly curved towards the first pushing member.

4. The emergency quick-opening anti-theft lock of claim 2, wherein: One side of the second groove is curved, and the other side is straight.

5. The emergency quick-opening anti-theft lock of claim 1, wherein: A tension spring is provided between the square tongue pushing member and the lock body housing, and the tension spring maintains the square tongue pushing member in a fixed position.

6. The emergency quick-opening anti-theft lock of claim 1, further comprising a dead bolt, which is extended and retracted by a knob provided on one side of the lock body housing. ​

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