A concealed lock

Abstract

The utility model discloses a hidden lock relates to lock manufacturing technical field, it includes: base, be equipped with the lock hole on the base, lock eye seat, is fixed in the base, lock core, is inserted in the lock eye seat, the lock core passes through the lock eye seat and the base and is in abutment, makes the lock eye of lock core expose in the lock hole, sliding cover, one end is equipped with the open slot, the groove bottom of open slot is equipped with at least one limit slot, sliding assembly, set up in the limit slot, the sliding cover is through the sliding assembly and the base far away from the lock eye seat one side sliding connection. Through the cooperation of sliding cover and sliding assembly, realized the hiding and exposure of lock eye, make the door body keep the non -porous visual effect under the conventional state, can effectively avoid the visual attack surface, and the setting of sliding cover improves the difficulty of technical unlocking, greatly improves the security of lock, when the sliding cover is closed, forms a smooth surface, effectively prevents dust accumulation and rainwater infiltration.

Description

Technical Field

[0001] This utility model relates to the field of lock manufacturing technology, and in particular to a concealed lock. Background Technology

[0002] Mechanical locks are a core component for ensuring the security of front doors. However, traditional front door locks generally use an exposed keyhole design, which has several long-standing technical flaws that have not been effectively addressed. First, in terms of security, the exposed keyhole constitutes a significant visual attack surface, facilitating technical unlocking. Criminals can use specialized tools such as hooks, tin foil tools, and lock-picking tools to directly insert into the keyhole to commit intrusion. According to sample statistics from the public security department, approximately 65% ​​of burglaries are committed through technical unlocking methods. Therefore, eliminating this exposure point from a physical structure perspective and reducing the risk of technical unlocking has become a key challenge in improving front door security. Second, regarding environmental reliability and durability, the inherent porous structure of the external keyhole makes it extremely prone to accumulating dust and impurities and allowing liquids to seep in. In actual use, the average monthly dust accumulation inside the keyhole can reach 0.3mm, and the water ingress rate can be as high as 42% during rain or outdoor washing. These environmental factors are the main causes of clogging, corrosion, and lubrication failure of the tumblers inside the lock cylinder. Industry data shows that approximately 15% of lock malfunctions (such as difficulty in key insertion / removal or inability to turn the lock) are directly caused by dust accumulation and water leakage. This not only affects the normal lifespan of the lock but also increases maintenance costs for users. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, this utility model provides a concealed lock that not only eliminates the technical unlocking risks faced by exposed keyholes, but also effectively prevents dust accumulation and rainwater infiltration.

[0004] This utility model provides a concealed lock, comprising: a base with a keyhole; a keyhole seat fixed to the base; a lock cylinder inserted into the keyhole seat, the lock cylinder passing through the keyhole seat and abutting against the base, so that the keyhole of the lock cylinder is exposed in the keyhole; a sliding cover with an opening groove at one end, the bottom of the opening groove having at least one limiting groove; and a sliding assembly disposed in the limiting groove, the sliding cover being slidably connected to the side of the base away from the keyhole seat through the sliding assembly.

[0005] As an improvement to the above solution, the opening groove has only one opening, and the groove edge of the opening groove covers the three sides of the base.

[0006] As an improvement to the above solution, the sliding component includes: a slide rail, which is fixed in the limiting groove in a direction perpendicular to the opening of the slot; and a sliding block, the first end of which is slidably connected to the slide rail, and the second end of which is fixedly connected to the base.

[0007] As an improvement to the above solution, two limiting grooves are provided, and each limiting groove is provided with a slide rail and a sliding block.

[0008] As an improvement to the above solution, the upper surface of the base is provided with a fixing groove, and the second end of the sliding block is inserted into the fixing groove.

[0009] As an improvement to the above solution, a connecting groove is provided below the lock hole of the base, and the lock cylinder is inserted into the connecting groove.

[0010] As an improvement to the above solution, the sliding cover is made of stainless steel or zinc alloy.

[0011] As an improvement to the above solution, the sliding assembly further includes a return spring, one end of which is connected to the sliding block, and the other end of which is connected to the edge of the limiting groove.

[0012] As an improvement to the above solution, the outer surface of the sliding cover is provided with anti-slip texture.

[0013] As an improvement to the above solution, the inner edge of the sliding cover is provided with a sealing lip. When the sliding cover is slid to the closed position that completely covers the lock hole, the sealing lip is tightly fitted with the upper surface of the base to form a seal.

[0014] The beneficial effects of implementing this utility model are as follows:

[0015] This utility model discloses a concealed lock that achieves both concealment and exposure of the keyhole through the cooperation of a sliding cover and a sliding component. This allows the door to maintain a hole-free visual effect under normal conditions, effectively avoiding visible attack surfaces. At the same time, the sliding cover increases the difficulty of technical unlocking, greatly enhancing the security of the lock. When the sliding cover is closed, it forms a flat surface, effectively preventing dust accumulation and rainwater infiltration, solving the lock malfunction problems caused by these factors, and extending its service life. It also meets the aesthetic requirements of modern minimalist architecture for a hole-free and integrated door appearance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a concealed lock according to an embodiment of this application;

[0017] Figure 2 This is a bottom view of a concealed lock according to an embodiment of this application;

[0018] Figure 3This is an exploded view of the structure of a concealed lock according to an embodiment of this application;

[0019] Figure 4 This is a partial structural diagram of a concealed lock according to an embodiment of this application;

[0020] Figure 5 This is a schematic diagram of the base of a concealed lock according to an embodiment of this application.

[0021] The reference numerals in the attached drawings are explained as follows: 100, base; 110, keyhole; 120, fixing groove; 130, connecting groove; 200, keyhole seat; 300, lock cylinder; 400, sliding cover; 410, opening groove; 420, limiting groove; 500, sliding assembly; 510, slide rail; 520, sliding block. Detailed Implementation

[0022] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0023] See Figures 1-3 , Figure 1 This is a schematic diagram of the structure of a concealed lock according to an embodiment of this application; Figure 2 This is a bottom view of a concealed lock according to an embodiment of this application; Figure 3 This is an exploded view of the structure of a concealed lock according to an embodiment of this application. As shown in the figure, the concealed lock includes: a base 100, on which a lock hole 110 is provided; a keyhole seat 200, fixed to the base 100; a lock cylinder 300, inserted into the keyhole seat 200, the lock cylinder 300 passing through the keyhole seat 200 and abutting against the base 100, so that the keyhole of the lock cylinder 300 is exposed in the lock hole 110; a sliding cover 400, one end of which is provided with an opening groove 410, the bottom of the opening groove 410 being provided with at least one limiting groove 420; and a sliding assembly 500, disposed in the limiting groove 420, the sliding cover 400 being slidably connected to the side of the base 100 away from the keyhole seat 200 through the sliding assembly 500. The combination of the sliding cover 400 and the sliding component 500 achieves both concealment and exposure of the keyhole, maintaining a hole-free visual effect in the normal state of the door, effectively avoiding visible attack surfaces. At the same time, the sliding cover 400 increases the difficulty of technical unlocking, greatly enhancing the security of the lock. When the sliding cover 400 is closed, it forms a flat surface, effectively preventing dust accumulation and rainwater infiltration, solving the lock malfunction problems caused by these factors, and extending its service life. It also meets the aesthetic requirements of modern minimalist architecture for a hole-free and integrated door appearance.

[0024] See Figure 1 and Figure 2Furthermore, in this embodiment, the opening groove 410 has only one opening, and the groove edge of the opening groove 410 covers three sides of the base 100. The sliding cover 400 has only one opening direction, and the other three sides are covered by the groove edge. This allows the sliding cover 400 to completely cover the base 100 when closed, further enhancing the dustproof and waterproof sealing. The keyhole and internal structure cannot be seen or touched from the outside, greatly increasing the difficulty of technical unlocking and improving security. The appearance is more complete and simple, improving the overall aesthetics.

[0025] See Figure 3 and Figure 4 , Figure 4 This is a partial structural diagram of a hidden lock according to an embodiment of this application.

[0026] Furthermore, in this embodiment, the sliding assembly 500 includes: a slide rail 510, fixed in the limiting groove 420 along a direction perpendicular to the opening of the opening groove 410; and a sliding block 520, the first end of which is slidably connected to the slide rail 510, and the second end of which is fixedly connected to the base 100. The slide rail 510 is fixed along a direction perpendicular to the opening, ensuring the straightness and stability of the sliding trajectory of the sliding cover 400 and preventing jamming or skewing. The sliding block 520, as a connecting member, smoothly transmits the sliding motion of the slide rail 510 to the sliding cover 400, realizing reliable and smooth opening and closing of the sliding cover 400 relative to the base 100.

[0027] Preferably, there are two limiting grooves 420, and each limiting groove 420 is provided with a slide rail 510 and a sliding block 520. The two-point support structure makes the force on the sliding cover 400 more balanced and the sliding process more stable, avoiding the tilting or shaking that may occur with single-point support; the double-track design greatly increases the load-bearing capacity and durability of the sliding mechanism, and improves the overall rigidity and service life of the product.

[0028] See Figure 5 , Figure 5 This is a schematic diagram of the structure of the base 100 of a concealed lock in an embodiment of this application.

[0029] Furthermore, in this embodiment, the upper surface of the base 100 is provided with a fixing groove 120, and the second end of the sliding block 520 is inserted into the fixing groove 120. The fixing groove 120 provides a simple and reliable fixing method, which is convenient for installation and positioning; the plug-in fit can effectively reduce the fit gap between the sliding block 520 and the base 100, reduce shaking and abnormal noise, make the sliding feel better, and make the structure more stable.

[0030] See Figure 3Furthermore, in this embodiment, a connecting groove 130 is provided below the lock hole 110 of the base 100, and the lock cylinder 300 is inserted into the connecting groove 130. This provides an additional positioning and support point for the lock cylinder 300, ensuring the concentricity and stability of the lock cylinder 300 after installation, and preventing the lock cylinder 300 from shaking and affecting the unlocking feel or accelerating wear; the tight fit between the connecting groove 130 and the lock cylinder 300 enhances the overall structural strength of the lock body.

[0031] Preferably, the sliding cover 400 is made of stainless steel or zinc alloy. This material gives the sliding cover 400 extremely high mechanical strength and hardness, effectively resisting external prying and enhancing anti-theft performance; both materials have excellent corrosion resistance and weather resistance, maintaining their appearance for a long time and not easily fading or rusting, making them very suitable as components of outdoor door locks.

[0032] Furthermore, in this embodiment, the sliding component 500 also includes a return spring, one end of which is connected to the sliding block 520, and the other end of which is connected to the edge of the limiting groove 420.

[0033] Preferably, as an improvement to the above solution, the outer surface of the sliding cover 400 is provided with anti-slip texture.

[0034] Specifically, the return spring is preferably a compression spring, with its two ends abutting against the inner wall of the closed end of the limiting groove 420 and the sliding block 520, respectively. When the sliding cover 400 is in the closed state, the return spring is in a pre-compressed state, accumulating elastic potential energy. When the user applies external force to push the sliding cover 400 to slide and expose the keyhole, the sliding block 520 moves along the slide rail 510 towards the closed end of the limiting groove 420, further compressing the return spring. When the user releases the sliding cover 400, the return spring releases its elastic potential energy, and its rebound force pushes the sliding block 520 and the sliding cover 400 together to slide in the opposite direction, automatically returning to the closed position, thereby realizing the automatic closing function of the sliding cover 400.

[0035] In use, the user pushes the anti-slip textured part on the sliding cover 400 to overcome the elasticity of the return spring, causing the sliding cover 400 to slide along the sliding assembly 500, thus revealing the keyhole. When the user releases their hand, the return spring drives the sliding cover 400 to automatically return to its original position, covering the keyhole and preventing dust and moisture from entering. This achieves the automatic reset function of the sliding cover 400, which is both convenient and ensures that the keyhole is always protected, avoiding the security risks caused by forgetting to close the sliding cover 400.

[0036] Furthermore, in this embodiment, the inner edge of the sliding cover 400 is provided with a sealing lip. When the sliding cover 400 slides to the closed position, completely covering the lock hole 110, the sealing lip tightly fits against the upper surface of the base 100 to form a seal. By setting the sealing lip, an active physical barrier is formed. When the sliding cover 400 is closed, the elastic sealing lip tightly fits against the surface of the base 100, achieving a highly effective seal. It can completely block the intrusion of tiny dust particles, water droplets, and even humid air, providing the highest level of protection for the keyhole and the internal sliding assembly 500, fundamentally solving the problem of lock malfunction caused by environmental factors.

[0037] Preferably, the sealing lip is made of silicone rubber, which has an extremely wide operating temperature range, excellent weather resistance, low permanent deformation rate, and is non-toxic and odorless, making it very suitable for applications such as door locks that are exposed to the outdoor environment for a long time.

[0038] As can be seen from the above, the concealed lock of this utility model achieves both concealment and exposure of the keyhole through the cooperation of the sliding cover and the sliding component, so that the door maintains a hole-free visual effect in the normal state, which can effectively avoid visible attack surfaces. At the same time, the sliding cover increases the difficulty of technical unlocking, greatly improving the security of the lock. When the sliding cover is closed, it forms a flat surface, which effectively prevents dust accumulation and rainwater infiltration, solves the lock malfunction problem caused by these factors, and extends the service life. It also meets the aesthetic requirements of modern minimalist architecture for a hole-free and integrated door appearance.

[0039] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A concealed lock, characterized in that, include: The base has a lock hole; The keyhole seat is fixed to the base; The lock cylinder is inserted into the keyhole seat, and the lock cylinder passes through the keyhole seat and abuts against the base, so that the keyhole of the lock cylinder is exposed in the key hole; A sliding cover, one end of which is provided with an opening groove, and the bottom of the opening groove is provided with at least one limiting groove; A sliding component is disposed within the limiting groove, and the sliding cover is slidably connected to the side of the base away from the keyhole seat via the sliding component.

2. The concealed lock according to claim 1, characterized in that: The slot has only one opening, and the edge of the slot covers the three sides of the base.

3. The concealed lock according to claim 1, characterized in that: The sliding component includes: The slide rail is fixed in the limiting groove in a direction perpendicular to the opening of the opening groove; The sliding block has its first end slidably connected to the slide rail, and its second end fixedly connected to the base.

4. The concealed lock according to claim 3, characterized in that: The limiting groove is provided in two places, and each limiting groove is provided with a slide rail and a sliding block.

5. The concealed lock according to claim 3, characterized in that: The upper surface of the base is provided with a fixing groove, and the second end of the sliding block is inserted into the fixing groove.

6. The concealed lock according to claim 1, characterized in that: The base is also provided with a connecting groove below the lock hole, and the lock cylinder is inserted into the connecting groove.

7. The concealed lock according to claim 1, characterized in that: The sliding cover is made of stainless steel or zinc alloy.

8. The concealed lock according to claim 3, characterized in that: The sliding assembly also includes a return spring, one end of which is connected to the sliding block, and the other end of which is connected to the edge of the limiting groove.

9. The concealed lock according to claim 1, characterized in that: The outer surface of the sliding cover is provided with anti-slip texture.

10. The concealed lock according to claim 1, characterized in that: The inner edge of the sliding cover is provided with a sealing lip. When the sliding cover is slid to the closed position that completely covers the lock hole, the sealing lip is tightly fitted with the upper surface of the base to form a seal.

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