External door opening prevention locking device

Abstract

The utility model discloses an external type prevents opening door locking device, including main part, the both ends of main part form installation mechanism and restriction mechanism respectively, installation mechanism is used for with external door frame to carry out detachable connection, and restriction mechanism is used for abutting to external door panel to restrict the door panel activity to open, through the cooperation of installation mechanism and restriction mechanism, has realized the characteristic of external installation, and further provided the locking ability to the door and door frame, prevented under the locking ability deficiency of the door lock of self -carrying that external personnel can enter by oneself, also or be opened by external unlocking or lock picking, has improved the security level greatly.

Description

Technical Field

[0001] This utility model relates to the field of door locks, and in particular to an external anti-opening door locking device. Background Technology

[0002] A lock is a mechanical device used to protect items and prevent unauthorized access or use. It is widely used in our daily lives, from home door locks and car locks to safe locks and access control systems in commercial and industrial sectors. Locks come in various types and forms, varying according to usage scenarios and security needs. In daily use, the security requirements for door locks differ depending on the scenario. If a door is at risk of being opened by outsiders, it can cause unease and anxiety for the user. In hotels, guesthouses, hostels, or other travel-related accommodations, or if the lock is old and can be opened with sufficient force, the interior space cannot be guaranteed to remain untouched. Therefore, there is an urgent need for a structurally sound locking device to further secure doors and improve security. Utility Model Content

[0003] In view of the technical problem that there is no suitable locking device in the prior art that can support external installation for further locking of the door, this utility model provides a solution.

[0004] To achieve the above objectives, this utility model provides an external door locking device, comprising a main body, with an installation mechanism and a limiting mechanism formed at both ends of the main body, the installation mechanism being used for detachable connection with the outer door frame, and the limiting mechanism being used for abutting against the outer door panel to restrict the door panel from opening.

[0005] As an improvement of this utility model, the mounting mechanism includes a first movable hole penetrating both sides of the main body. The first movable hole is provided with a movable pin that is slidably connected. The opposite ends of the movable pin form a locking end and an adjusting end. The locking end is provided with an L-plate. The short plate of the L-plate and the abutting inclined surface provided at the end of the main body form a clamping area.

[0006] As an improvement of this utility model, the width parameter of the L-plate is greater than the diameter parameter of the movable pin; the position shape of the main body corresponding to the first movable hole is used to avoid the slot of the long plate.

[0007] As an improvement of this utility model, the cylindrical surface of the movable pin is provided with external threads, and the adjusting end is provided with an adjusting nut for threaded connection with the movable pin; the adjusting nut restricts the movement of the main body.

[0008] As an improvement of this utility model, the adjusting nut is a wing nut.

[0009] As an improvement of this utility model, the corner of the short plate near the L plate of the main body is provided with an abutting slope.

[0010] As an improvement of this utility model, the limiting mechanism includes a protrusion protruding from the surface of the main body and an abutment pin; the protrusion is provided with a through second movable hole, and the abutment pin is adapted to the second movable hole through a threaded structure.

[0011] As an improvement of this utility model, an adjusting nut is also provided at the end of the abutment pin near the adjusting end.

[0012] As an improvement of this utility model, there is always a movable gap between the adjusting nut and the wing nut.

[0013] As an improvement of this utility model, the thickness of the long plate of the L-plate is less than the thickness of the short plate of the L-plate.

[0014] The beneficial effects of this utility model are as follows: Compared with the prior art, the external anti-opening door locking device provided by this utility model includes a main body, with an installation mechanism and a limiting mechanism formed at both ends of the main body. The installation mechanism is used to detachably connect with the outer door frame, and the limiting mechanism is used to abut against the outer door panel to restrict the door panel from opening. Through the coordinated cooperation of the installation mechanism and the limiting mechanism, the external installation feature is realized, thereby providing the locking capability of the door and door frame, preventing external personnel from entering on their own when the locking capability of the built-in door lock is insufficient, and greatly improving the security level. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present utility model; Figure 2 This is an exploded view of the present invention; Figure 3 This is another perspective view of the present invention; Figure 4 This is a three-dimensional view of the main body of this utility model.

[0016] The symbols for the main components are explained below: 1. Main body; 11. Grooving; 12. Abutting slope; 2. Mounting mechanism; 21. First movable hole; 22. Movable pin; 23. L-plate; 231. Short plate; 232. Long plate; 24. Wing nut; 3. Restriction mechanism; 31. Protrusion; 32. Abutment pin; 33. Adjusting nut; 34. Second movable hole; a. Clamping area; b. Movement gap. Detailed Implementation

[0017] To more clearly illustrate this utility model, the following description, in conjunction with the accompanying drawings, will provide a further picture.

[0018] In the following description, specific examples are given to provide a more in-depth understanding of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of them. It should be understood that the specific embodiments described are only used to explain the present invention and are not intended to limit the present invention.

[0019] It should be understood that when the terms “comprising” and / or “including” are used in this specification, they indicate the presence of the said feature, integral, step, operation, element, or component, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, or combinations thereof.

[0020] In daily use, the security requirements for door locks vary depending on the scenario. If there is a risk that the door can be opened by outsiders, it will make the user feel uneasy and in a state of tension. If the user stays in a hotel, guesthouse, hostel, or other travel-related accommodation, or if the door lock is old and can be opened with appropriate external force, the indoor space cannot be guaranteed to be safe. Therefore, there is an urgent need for a reasonably structured locking device to further lock the door and improve the level of security.

[0021] To address the technical problem that existing technologies lack suitable locking devices that can support external installation for further locking of doors, this application provides an external anti-opening door locking device. Please refer to the appendix. Figure 1 To be continued Figure 4 It includes a main body 1, with an installation mechanism 2 and a limiting mechanism 3 formed at both ends of the main body 1. The installation mechanism 2 is used to detachably connect with the outer door frame, and the limiting mechanism 3 is used to abut against the outer door panel to restrict the door panel from opening. The following details this application using a specific usage scenario: The specific installation environment includes a door and a door frame. The door frame has a lock hole, and the latch in the door extends into the lock hole to lock the door. When using the locking device of this application, the user first installs the detachable device under the door frame through the installation mechanism 2, using the door frame as the main force point. The specific installation method can be a clamp connection, a threaded connection, etc. Then, the limiting mechanism 3 securely abuts the door, thus forming a locked state. The second locking structure can be a top pin, a top ring, etc. As can be seen, through the coordinated operation of the installation mechanism 2 and the limiting mechanism 3, the external installation feature is achieved, thereby providing the locking capability for the door and door frame. This prevents external personnel from entering if the locking capability of the built-in door lock is insufficient, greatly improving the security level.

[0022] In this embodiment, the installation mechanism 2 includes a first movable hole 21 penetrating both sides of the main body 1. The first movable hole 21 is provided with a movable pin 22 that is slidably connected. The two ends of the movable pin 22 form a locking end and an adjusting end. The locking end is provided with an L plate 23. It is easy to understand that the L plate 23 is composed of a long plate 232 and a short plate 231. The short plate 231 of the L plate 23 forms a clamping area a with the end face of the main body 1. The short plate 231 is used to be embedded in the lock hole. At this time, by adjusting the position of the movable pin 22 in the first movable hole 21, the clamping width of the clamping area a can be changed, so that the entire locking device can be clamped on the door frame, thereby achieving fixed installation. When it is not needed, the clamping area a can be widened by adjusting the adjusting end, and the locking device can be retracted.

[0023] In this embodiment, the width parameter of the long plate 232 of the L plate 23 is greater than the diameter parameter of the movable pin 22; the position shape of the main body 1 corresponding to the first movable hole 21 is used to avoid the slot 11 of the long plate 232; under this structural design, two flanges are formed on both sides of the long plate 232, and the flanges cooperate with the slot 11 to achieve guiding sliding and ensure the smooth movement of the movable pin 22; in a further embodiment, the corner of the main body 1 near the short plate 231 of the L plate 23 is provided with an abutting slope 12. It is easy to understand that the abutting slope 12 and the short plate 231 constitute the clamping area described in the previous embodiment. a. The lock hole is set in the metal profile. In order to better fit the door frame and for aesthetic purposes, the metal profile is generally formed with a certain curvature to extend outward from the door frame surface. Therefore, the abutting bevel 12 can fit well with this part of the curvature, greatly increasing the stability when clamping. More importantly, the tip of the abutting bevel 12 can be embedded into the door gap. After adjustment by the wing nut, the long plate generates a clamping force on the main body. This clamping force also acts on the inside of the doorway, ensuring the reasonable stress on the long plate, increasing user safety and preventing the long plate from breaking.

[0024] In this embodiment, the cylindrical surface of the movable pin 22 is provided with external threads (not shown in the figure), and the adjusting end is provided with an adjusting nut for threaded connection with the movable pin; the adjusting nut 24 restricts the movement of the main body; it is easy to understand that while the short plate 231 and the main body 1 can clamp the door frame well, the clamping area a with a stable clamping width value can be obtained through the cooperation of the adjusting nut and the movable pin, so as to avoid structural loosening; in the preferred embodiment, the adjusting nut is a wing nut 24, and the force handles on both sides of the wing nut can be better adjusted and used by the user.

[0025] In this embodiment, the limiting mechanism 3 includes a protrusion 31 protruding from the surface of the main body 1 and an abutment pin 32; the protrusion 31 is provided with a through second movable hole 34, and the abutment pin 32 is adapted to the second movable hole 34 by a threaded structure (since the threaded structure is a structural feature that can be quickly understood by those skilled in the art, it is not shown); by providing an abutment pin 32 that can be moved out, it can be adapted to more different types of doors; in a further embodiment, an adjusting nut 33 is also provided at the end of the abutment pin 32 near the adjusting end, and by rotating the adjusting nut 33, the abutment pin 32 is rotated out to change the position of the top protrusion.

[0026] In this embodiment, a clearance b is always maintained between the adjusting nut 33 and the wing nut 24, ensuring that the two structures do not interfere with each other when rotating, making them more convenient to use.

[0027] In this embodiment, the thickness of the long plate 232 of L plate 23 is less than the thickness of the short plate 231 of L plate 23. When someone breaks in, the short plate needs to withstand a greater external force. Therefore, specifically increasing the thickness of the short plate 231 to enhance its strength is more in line with the solution of this application.

[0028] The advantages of this utility model are: Through the coordinated operation of the installation and restraint mechanisms, the external installation feature is achieved, thereby providing the ability to lock the door and door frame, preventing outsiders from entering if the built-in door lock is insufficient, and greatly improving the security level.

[0029] The above-disclosed embodiments are only a few specific examples of this utility model. However, this utility model is not limited thereto. Any variations that can be conceived by those skilled in the art should fall within the protection scope of this utility model.

Claims

1. An external anti-opening door locking device, characterized in that, The device includes a main body, with an installation mechanism and a limiting mechanism formed at both ends of the main body. The installation mechanism is used for detachable connection with the outer door frame, and the limiting mechanism is used to abut against the outer door panel to restrict the opening of the door panel.

2. The external anti-opening door locking device according to claim 1, characterized in that, The mounting mechanism includes a first movable hole penetrating both sides of the main body. The first movable hole is provided with a movable pin that is slidably connected. The opposite ends of the movable pin form a locking end and an adjusting end. The locking end is provided with an L-plate. The short plate of the L-plate and the abutting inclined surface provided at the end of the main body form a clamping area.

3. The external anti-opening door locking device according to claim 2, characterized in that, The width parameter of the L-plate is greater than the diameter parameter of the movable pin; the position shape of the main body corresponding to the first movable hole is designed to avoid the slot of the long plate.

4. The external anti-opening door locking device according to claim 3, characterized in that, The cylindrical surface of the movable pin is provided with external threads, and the adjusting end is provided with an adjusting nut for threaded connection with the movable pin; the adjusting nut restricts the movement of the main body.

5. The external anti-opening door locking device according to claim 4, characterized in that, The adjusting nut is a wing nut.

6. The external anti-opening door locking device according to claim 5, characterized in that, The limiting mechanism includes a protrusion protruding from the surface of the main body and an abutment pin; the protrusion is provided with a through second movable hole, and the abutment pin is adapted to the second movable hole through a threaded structure.

7. The external anti-opening door locking device according to claim 6, characterized in that, An adjusting nut is also provided at the end of the abutment pin near the adjusting end.

8. The external anti-opening door locking device according to claim 7, characterized in that, There is always a clearance between the adjusting nut and the wing nut.

9. The external anti-opening door locking device according to claim 2, characterized in that, The thickness of the longer plate of the L-plate is less than the thickness of the shorter plate of the L-plate.

Images