A lock faceplate protection device
By designing a lock panel protection device and utilizing a combination of bolts and rails, the problems of large space occupation by multiple locks and easy damage to smart electronic lock panels are solved, achieving high anti-theft performance and aesthetically pleasing multi-person step-by-step unlocking.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-05
- Publication Date
- 2026-03-17
AI Technical Summary
In locations with high security requirements, multiple locks take up a lot of space, are unsightly, and the panels of ordinary smart electronic locks have low structural strength and are easily damaged, leading to reduced security.
A lock panel protection device was designed, including a lock panel sleeve and a protective cover. The lock panel is sealed and protected by a combination combination of a bolt and a rail. Multiple people can unlock the lock in stages by adjusting the angle and height of the bolt, thus increasing the difficulty of opening the lock.
It effectively prevents the protective cover from being illegally opened, enables multiple people to unlock the lock in stages, and does not increase the number of locks, thus improving the anti-theft performance and aesthetics of the locks.
Smart Images

Figure CN118441948B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of anti-theft devices, and more particularly to a lock panel protection device. Background Technology
[0002] In locations with high security requirements, such as armories and large safes, multiple locks need to be controlled by multiple people, requiring step-by-step unlocking. Multiple security locks can be configured as multiple mechanical locks controlled by multiple people, or a combination of mechanical locks and smart electronic locks controlled by multiple people. Separate installations of multiple locks take up a lot of space, are unsightly, and increase the manufacturing cost of the door. Using the same unlocking method for multiple ordinary mechanical locks reduces the difficulty of unlocking. Furthermore, ordinary smart electronic locks typically use touch-screen LCD panels, fingerprint panels, or numeric keypad panels. These panels are mostly non-metallic, have low structural strength, and are easily damaged, leading to damage to the smart electronic lock, unauthorized opening of the door, and unnecessary security incidents. Summary of the Invention
[0003] This invention addresses the aforementioned problems by providing a lock panel protection device. This device can protect the touchscreen LCD panel, fingerprint panel, or numeric keypad panel of a smart electronic lock, as well as the keyhole panel of a mechanical lock. The protective cover also functions as a high-level anti-theft lock, making it more difficult to open than ordinary mechanical keys or combination locks. This invention, used in conjunction with ordinary mechanical locks or smart electronic locks in important locations, allows for multi-person, step-by-step opening, significantly improving the anti-theft performance of various door locks.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A lock panel protection device, characterized in that: it includes a lock panel sleeve and a protective cover installed on a door panel; the lock panel is installed inside the lock panel sleeve; the protective cover is fitted over the lock panel sleeve to seal and protect the lock panel; the upper part of the lock panel sleeve is provided with multiple bolt-stopping grooves, the bolt-stopping grooves are U-shaped with open outer sides, and a guide rail is provided on one side of each bolt-stopping groove, the heights of the guide rails on different bolt-stopping grooves are different; the protective cover is cylindrical with one end closed, and is fitted over the lock panel sleeve; the upper side wall of the protective cover is provided with multiple bolt-stopping threaded holes respectively corresponding to the positions of the bolt-stopping grooves, the inner wall of the bolt-stopping threaded holes is provided with internal threads, bolts are installed in the bolt-stopping threaded holes, and the upper part of the bolts is connected to the internal threads of the bolt-stopping threaded holes by external threads; the inner end of the bolt-stopping groove is provided with an adjustment area, the adjustment area having no guide rail; When the protective cover is installed on the lock panel sleeve, the threaded hole of the bolt is aligned with the adjustment area, and the bottom of the bolt extends out of the threaded hole into the adjustment area of the bolt groove. A matching groove is provided on one side of the bottom of the bolt, the shape and size of which match the guide rail on the side of the bolt groove. The guide rail is used to prevent the protective cover from detaching from the lock panel sleeve. When the bolt is rotated to a set angle so that the matching groove is aligned with the end of the guide rail, and the height of the matching groove is consistent with the guide rail, the bolt can pass through the bolt groove; otherwise, the bolt cannot pass through the bolt groove. A handle groove is provided on the upper end face of the bolt, for inserting a handle. By rotating the bolt with the handle, the angle and height of the matching groove are adjusted. When all the matching grooves of the bolts are aligned with the end of the guide rail, the protective cover is pulled outwards, the guide rail slides past the matching groove, the protective cover detaches from the lock panel sleeve, and the protection of the lock panel is released.
[0006] Furthermore, the door panel on the outer periphery of the lock panel sleeve is provided with a cover groove. When the protective cover is installed on the lock panel sleeve, the cylinder wall port of the protective cover is embedded in the cover groove. The cover groove is provided with a limiting slot, and the outer periphery of the cylinder wall port of the protective cover is provided with a limiting boss corresponding to the limiting groove.
[0007] Furthermore, the upper end of the threaded hole of the bolt on the protective cover is provided with a closing retainer, which restricts the bolt from extending out of the upper port of the threaded hole.
[0008] Furthermore, the handle is provided with an angle reference line and a height mark, and the outer periphery of the upper port of the bolt threaded hole is provided with an angle mark. By observing the angle reference line and height mark on the handle, the angle and height of the bolt alignment groove relative to the stop rail can be determined.
[0009] Furthermore, the handle groove of the bolt is provided with an irregular anti-theft protrusion and a diagonal groove in the middle, and the handle end is provided with an irregular end that matches the irregular protrusion and a diagonal platform that matches the diagonal groove.
[0010] Furthermore, the bottom of the adjustment area of the bolt groove is provided with a groove bottom retainer to prevent the bolt from protruding from the bottom of the adjustment area.
[0011] The present invention has the following beneficial effects:
[0012] This invention utilizes a protective cover to seal and protect the lock panel. Operating the lock panel requires opening the protective cover, which is locked in place by a bolt and a guide rail. The protective cover can only be opened when the bolt is rotated using a handle, adjusting the angle and height of its alignment groove so that the groove aligns perfectly with the end of the guide rail. The bolt uses a rotating spiral lifting mechanism, allowing the alignment groove to align with the end of the guide rail multiple times, effectively providing multiple adjustable angles of 360 degrees. The alignment groove and guide rail have several settable height values within a controllable precision range. Each set of alignment grooves and guide rails represents an unlimited combination of passwords. The multiple bolt and guide rail combinations significantly increase the difficulty of unauthorized opening of the protective cover. The invention embeds the protective cover's cylindrical end into a recessed area on the door panel, effectively preventing prying. This invention, used in conjunction with the lock panel, provides protection for the lock panel and enables multi-person, step-by-step unlocking without increasing the number of locks required. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the installation structure of the present invention.
[0014] Figure 2 This is a schematic diagram of the lock panel sleeve structure of the present invention.
[0015] Figure 3 This is a schematic diagram of the bolt installation according to the present invention.
[0016] Figure 4 This is a schematic diagram of the three-dimensional structure of the bolt stop of the present invention.
[0017] Figure 5 This is a schematic diagram of the protective cover structure of the present invention.
[0018] Figure 6 This is a schematic diagram of the handle structure of the present invention.
[0019] The correspondence between the component names and their corresponding reference numerals in the diagram is as follows:
[0020] 1. Lock panel sleeve; 2. Protective cover; 3. Handle; 1-1 Bolt stop groove; 1-2 Stop rail; 1-3 Adjustment area; 1-4 Groove bottom locking platform; 2-1 Bolt stop threaded hole; 2-2 Bolt stop; 2-3 Alignment groove; 2-4 Handle groove; 2-5 Limiting boss; 2-6 Closing locking platform; 2-7 Irregular anti-theft boss; 2-8 Diagonal groove; 2-9 Angle mark; 3-1 Angle baseline; 3-2 Height mark; 3-3 Irregular end; 3-4 Diagonal platform; 100 Door panel; 101 Lock panel; 102 Cover groove; 103 Limiting slot. Detailed Implementation
[0021] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. The embodiments are only some embodiments of the present invention, and not all embodiments.
[0022] Example 1: Please refer to Figures 1-6As shown, the present invention provides a lock panel protection device, including a lock panel sleeve 1 and a protective cover 2 installed on a door panel 100. The lock panel 101 is installed inside the lock panel sleeve, and the protective cover 2 is fitted over the lock panel sleeve 1 to seal and protect the lock panel 101. The upper part of the lock panel sleeve has multiple bolt-stopping grooves 1-1, each U-shaped groove with an open outer side. One side of each bolt-stopping groove has a guide rail 1-2, with different heights for the guide rails on different bolt-stopping grooves. The protective cover is a cylindrical shape with one end closed, fitted over the lock panel sleeve. The upper side wall of the protective cover has multiple bolt-stopping threaded holes 2-1, each corresponding to a bolt-stopping groove. The inner wall of each bolt-stopping threaded hole has an internal thread, and a bolt 2-2 is installed inside the bolt-stopping threaded hole. The upper part of the bolt is connected to the internal thread of the bolt-stopping threaded hole via an external thread. An adjustment area is provided near the inner end of each bolt-stopping groove. 1-3, No guide rail in the adjustment area; when the protective cover is installed on the lock panel sleeve, the bolt threaded hole is directly opposite the adjustment area, and the bottom of the bolt extends out of the bolt threaded hole into the adjustment area of the bolt slide groove; a matching groove 2-3 is provided on one side of the bottom of the bolt, and the shape and size of the matching groove match the guide rail on the side of the bolt slide groove; the guide rail is used to restrict the protective cover from detaching from the lock panel sleeve. When the bolt is rotated to a set angle so that the matching groove is directly opposite the end of the guide rail, and the height of the matching groove is the same as the guide rail, the bolt can pass through the bolt slide groove; otherwise, the bolt cannot pass through the bolt slide groove; a handle groove 2-4 is provided on the upper end face of the bolt, and the handle groove is used to insert the handle 3. The bolt is rotated by the handle to adjust the angle and height of the matching groove. When all the matching grooves of the bolts are directly opposite the end of the guide rail, the protective cover is pulled outward, the guide rail slides through the matching groove, the protective cover is detached from the lock panel sleeve, and the protection of the lock panel is released. The door panel on the outer periphery of the lock panel sleeve has a cover groove 102. When the protective cover 2 is installed on the lock panel sleeve, the cylindrical wall end of the protective cover is embedded in the cover groove. The cover groove has a limiting groove 103, and the outer periphery of the cylindrical wall end of the protective cover has a limiting boss 2-5 corresponding to the limiting groove. The upper end of the bolt threaded hole on the protective cover has a closing plate 2-6, which restricts the bolt from extending out of the upper end of the bolt threaded hole. The handle 3 has an angle reference line 3-1 and a height mark 3-2. The outer periphery of the upper end of the bolt threaded hole has an angle mark 2-9. The angle reference line and height mark on the handle are used to determine the angle and height of the bolt alignment groove relative to the guide rail. The handle groove of the bolt 2-2 has a special-shaped anti-theft boss 2-7 and a diagonal groove 2-8 in the middle. The handle end has a special-shaped end 3-3 that matches the special-shaped boss and a diagonal plate 3-4 that matches the diagonal groove. The bottom of the adjustment area of the bolt groove is provided with a groove bottom locking platform 1-4 to prevent the bolt from protruding from the bottom of the adjustment area.
[0023] In a specific implementation of this invention, the lock panel sleeve 1 is fixedly connected to the door panel 100. The door panel has a pre-fabricated cover groove 102, and the lock panel is installed inside the lock panel sleeve 1. The lock panel can be a mechanical lock panel or an intelligent electronic lock panel. The lock panel is connected to the door body via a bolt linkage assembly using a lock cylinder. The lock cylinder and bolt linkage assembly are common components in the existing market. The external thread of the bolt stop and the internal thread of the bolt stop threaded hole are tightly fitted, ensuring that the bolt stop will only rotate when a sufficiently large torque is applied by the handle 3. The bolt stop and the bolt stop threaded hole are located on the upper side wall of the protective cover for easy operation. When the protective cover 2 is closed, the bolt stop 2-2 is located in the adjustment area 1-3, and the alignment groove 2-3 of the bolt stop 2-2 is located at a position where the angle and height are not opposite to the end of the guide rail. At this time, the protective cover 2 cannot be opened. When it is necessary to open the protective cover 2, insert the irregular end 3-3 of the handle 3 into the bolt threaded hole 2-1. The diagonal platform 3-4 is opposite to the diagonal groove 2-8, and the irregular end 3-3 cooperates with the limiting boss 2-5. Rotate the handle 3 to drive the bolt 2-2 to rotate. By observing the angle reference line 3-1 and height mark 3-2 on the handle 3, determine the angle and height of the alignment groove 2-3 of the bolt 2-2. During the rotation of the bolt 2-2, the angle of the alignment groove 2-3 can be aligned with the end of the guide rail 1-2 multiple times, but only once will the height be aligned with the end of the guide rail 1-2. When all the bolt alignment grooves are aligned with the ends of the guide rails, pull the protective cover 2 outward to make the bolts pass through the bolt sliding groove. The protective cover 2 disengages from the lock panel sleeve 1, exposing the lock panel. Then, use a password, fingerprint, facial recognition, mechanical key, etc. to open the lock. Use the lock cylinder to drive the bolt linkage assembly to open the door. The bolt of this invention uses a rotating spiral lifting mechanism. The angle of the alignment groove can be aligned with the end of the stop rail 1-2 multiple times, equivalent to multiple adjustable angles added together at 360 degrees. The alignment groove and stop rail have several settable height values within a controllable precision range. Each set of alignment grooves and stop rails is equivalent to an infinite combination password. The protective cover is equipped with multiple sets of bolt and stop rail combinations, and a distinguishing mark is set on the outside of the bolt thread hole 1-1. The alignment groove and stop rail are not visible inside the protective cover 2, making the probability of being cracked almost zero, greatly increasing the difficulty of the protective cover being illegally opened. During the manufacture of the bolt, the angle and height data of the alignment groove required for its normal opening are recorded, and users can only use it normally after obtaining the above data.
[0024] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to the above embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A lock faceplate protection device, characterized by: The utility model provides a lock panel sleeve, a protective cover is installed on the door body panel, a lock panel is installed in the lock panel sleeve, the protective cover is sleeved outside the lock panel sleeve to seal and protect the lock panel, a plurality of stop bolt sliding grooves are arranged on the upper portion of the lock panel sleeve, the stop bolt sliding groove is a U-shaped opening on the outside, a stop rail is arranged on one side of the stop bolt sliding groove, the stop rails on the side of different stop bolt sliding grooves are different in height, the protective cover is a cylindrical shape with one end sealed, and the protective cover is sleeved outside the lock panel sleeve, a plurality of stop bolt threaded holes are arranged on the side wall of the upper portion of the protective cover and correspond to the positions of the stop bolt sliding grooves, internal threads are arranged on the inner wall of the stop bolt threaded hole, a stop bolt is installed in the stop bolt threaded hole, and the upper portion of the stop bolt is connected with the internal threads of the stop bolt threaded hole through external threads, the stop bolt sliding groove is provided with an adjustment area at the inner end, and the adjustment area is free of the stop rail, when the protective cover is installed on the lock panel sleeve, the stop bolt threaded hole is opposite to the adjustment area, the bottom of the stop bolt extends out of the stop bolt threaded hole and extends into the adjustment area of the stop bolt sliding groove, one side of the bottom of the stop bolt is provided with a positioning groove, the shape and size of the positioning groove are matched with the stop rail on the side of the stop bolt sliding groove, the stop rail is used for limiting the protective cover from separating from the lock panel sleeve, when the stop bolt is rotated to a set angle and the positioning groove is opposite to the end of the stop rail and the height of the positioning groove is consistent with the stop rail, the stop bolt can pass through the stop bolt sliding groove, otherwise, the stop bolt cannot pass through the stop bolt sliding groove, a handle recess is arranged on the upper end surface of the stop bolt, the handle recess is used for inserting a handle, the handle is used for rotating the stop bolt, and then the angle and height of the positioning groove are adjusted, when the positioning grooves of all stop bolts are opposite to the end of the stop rail, the protective cover is pulled outwards, the stop rail slides through the positioning groove, the protective cover separates from the lock panel sleeve, and the protection on the lock panel is removed.
2. A lock faceplate protection device according to claim 1, wherein: A cover recess is arranged on the door body panel around the periphery of the lock panel sleeve, when the protective cover is installed on the lock panel sleeve, the port of the barrel wall of the protective cover is embedded in the cover recess, a limiting recess groove is arranged on the cover recess, and a limiting convex platform corresponding to the limiting recess groove is arranged on the periphery of the port of the barrel wall of the protective cover.
3. A lock faceplate protection device according to claim 1, wherein: A closing-in clamping platform is arranged on the upper end of the stop bolt threaded hole on the protective cover, and the closing-in clamping platform limits the stop bolt from extending out of the upper port of the stop bolt threaded hole.
4. A lock faceplate protection device according to claim 1, wherein: An angle reference line and a height mark line are arranged on the handle, an angle mark line is arranged on the periphery of the upper port of the stop bolt threaded hole, and the angle and height of the positioning groove relative to the stop rail are determined by observing the angle reference line and the height mark line on the handle.
5. A lock faceplate protection device according to claim 1, wherein: A special-shaped anti-theft convex platform and a diagonal groove are arranged in the middle of the handle recess of the stop bolt, a special-shaped end head matched with the special-shaped anti-theft convex platform and a diagonal platform matched with the diagonal groove are arranged on the end head of the handle.
6. A lock faceplate protection device according to claim 1, wherein: A groove bottom clamping platform is arranged at the bottom of the adjustment area of the stop bolt sliding groove to avoid the stop bolt from extending out of the bottom of the adjustment area.
Citation Information
Patent Citations
Lockhole lid mounting structure
CN208633688U
Intelligent door lock protective cover
CN210239374U