Breakage-proof shell of mechanical lock

Abstract

The utility model relates to a breakage-proof shell of a mechanical lock, which comprises a door lock shell, a lock cylinder hole and a handle are arranged on the front side of the door lock shell, the handle is arranged above the lock cylinder hole, a protective cover plate is further arranged on the front side of the door lock shell in an up-down sliding mode, the protective cover plate comprises a shielding portion and a through hole portion, and a locking device is further arranged on the handle. The protective cover plate can slide up and down to enable the shielding part of the protective cover plate to shield the lock cylinder hole or enable the through hole part of the protective cover plate to expose the lock cylinder hole, and when the shielding part shields the lock cylinder hole, the locking device can lock the protective cover plate; by means of the protective cover plate sliding up and down, a physical barrier is formed for the lock cylinder hole through the shielding part, invasion of external tools is effectively blocked, and the prying resistance, drilling resistance and foreign matter filling resistance are remarkably improved; dust and rainwater invasion can be reduced, and the service life of the lock cylinder is prolonged; when the shielding part completely covers the lock cylinder hole, the locking device can lock the protection cover plate, double insurance is formed, and the protection cover plate is prevented from being forcibly slid by external force.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of lockset, especially relates to a mechanical lock's anti -damage shell. BACKGROUND

[0002] With the promotion of social security demand, mechanical lock as traditional security equipment, its anti -damage performance is concerned. The lock cylinder of the existing mechanical lock is usually directly exposed, and the lock cylinder is the key target of attackers to pick lock, drill or inject foreign matter to destroy, and the exposed design leads to weak lock body anti -damage ability. Although part of the lockset adds a rotating or translational protective cover, the protective cover lacks locking function and is easy to be violently opened. SUMMARY

[0003] The utility model aims at at least in a certain extent solves one of the problems existing in prior art related, for this, the utility model provides a mechanical lock's anti -damage shell.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] A mechanical lock's anti -damage shell, including door lock shell, lock cylinder hole and handle are provided on the front side of the door lock shell, the handle is arranged above the lock cylinder hole, the front side of the door lock shell is also slid up and down with the protective cover plate, the protective cover plate includes the shielding part and the through hole part, the locking device is further arranged on the handle, the shielding part of the protective cover plate can shield the lock cylinder hole or the through hole part of the protective cover plate can expose the lock cylinder hole by sliding up and down, and when the shielding part shields the lock cylinder hole, the locking device can lock the protective cover plate.

[0006] In some embodiments, the front side of the door lock shell is symmetrically provided with a sliding groove on the left and right, and the protective cover plate slides up and down in the two sliding grooves.

[0007] In some embodiments, a power-assisted block is arranged on the protective cover plate between the two sliding grooves.

[0008] In some embodiments, a decorative stopper is connected between the two sliding grooves, and the decorative stopper is located on the lower side of the sliding groove, used for limiting the power-assisted block and accommodating the shielding part, when the protective cover plate slides down and abuts against the decorative stopper, the through hole part exposes the lock cylinder hole, and the shielding part is accommodated in the inner side of the decorative stopper.

[0009] In some embodiments, the handle is in L-shaped structure, including a connecting part and a handle part arranged at the outer end of the connecting part, and the other end of the connecting part is connected with the door lock shell.

[0010] In some embodiments, the locking device comprises a cavity provided in the connecting portion, a plug rod inserted in the cavity, a lock hook provided at the upper end of the protection cover plate, and an opening provided at the lower side of the connecting portion and communicating with the cavity, the lock hook being capable of being inserted into the cavity through the opening and hooked on the plug rod.

[0011] In some embodiments, a first baffle is provided on the plug rod, a spring is further sleeved on the plug rod, one end of the spring abuts against the first baffle, the other end of the spring abuts against the inner wall of the cavity, and the plug rod is connected with the lock hook through the action of the spring, and a second baffle for limiting the first baffle is provided in the cavity.

[0012] In some embodiments, a decorative block is provided at the outer end of the plug rod.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] 1. The protection cover plate is slid up and down, the lock cylinder hole is formed into a physical barrier by the shielding part, external tools are effectively blocked, the pick-resistant, drill-resistant and foreign matter filling-resistant capabilities are significantly improved, dust and rainwater are reduced to invade, and the service life of the lock cylinder is prolonged.

[0015] 2. When the shielding part completely covers the lock cylinder hole, the locking device can lock the protection cover plate, double insurance is formed, and external force is prevented from forcibly sliding the protection cover plate.

[0016] 3. The protection cover plate and the handle are integrated with the locking device, redundant components are avoided, the manufacturing cost is reduced, the overall structure impact resistance and durability are improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structure schematic view when the shielding part of the utility model shields the lock cylinder hole.

[0018] Figure 2 It is a structure schematic view when the shielding part of the utility model shields the lock cylinder hole.

[0019] Figure 3 It is a structure schematic view when the shielding part of the utility model shields the lock cylinder hole.

[0020] Figure 4 It is an enlarged schematic view of A of the utility model. Figure 3 DETAILED DESCRIPTION

[0021] ​The following detailed description provides various embodiments or examples for implementing this utility model. Of course, these are merely embodiments or examples and are not intended to be limiting. Additionally, repeated reference numerals, such as repeated numbers and / or letters, may be used in different embodiments. These repetitions are for the purpose of simple and clear description of this utility model and do not represent a specific relationship between the different embodiments and / or structures discussed.

[0022] like Figures 1-4 The illustrated anti-vandalism housing of a mechanical lock includes a door lock housing 1. A lock cylinder hole 2 and a handle 3 are provided on the front side of the door lock housing 1. The handle 3 is located above the lock cylinder hole 2. A protective cover plate 4 is also slidably mounted on the front side of the door lock housing 1. The protective cover plate 4 includes a blocking part 5 and a through hole part 6. A locking device is also provided on the handle 3. The protective cover plate 4 can be slid up and down so that its blocking part 5 blocks the lock cylinder hole 2, or its through hole part 6 exposes the lock cylinder hole 2. When the blocking part 5 blocks the lock cylinder hole 2, the locking device can lock the protective cover plate 4.

[0023] According to the above structure, the protective cover 4, which slides up and down, forms a physical barrier against the lock cylinder hole 2 with the shielding part 5, effectively blocking the intrusion of external tools and significantly improving the anti-pry, anti-drilling, and anti-foreign object filling capabilities; at the same time, it can reduce the intrusion of dust and rainwater and extend the service life of the lock cylinder.

[0024] When the shielding part 5 completely covers the lock cylinder hole 2, the locking device can lock the protective cover 4, forming a double insurance to prevent external force from forcibly sliding the protective cover.

[0025] The protective cover 4 and handle 3 are integrated with a locking device, which avoids redundant components, reduces manufacturing costs, and improves the overall structure's impact resistance and durability.

[0026] Furthermore, there are symmetrical sliding grooves 21 on the front side of the door lock housing 1, and the protective cover plate 4 slides up and down in the two sliding grooves 21; the symmetrical sliding grooves 21 provide a stable sliding track to ensure that the movement trajectory of the protective cover plate 4 is accurate and avoids deviation that would cause the lock cylinder hole 2 to be not properly covered; at the same time, the sliding grooves 21 are integrally formed with the door lock housing 1, which enhances the mechanical strength of the sliding part of the protective cover plate 4 and resists external impact or prying.

[0027] Furthermore, an assisting block 31 is provided on the protective cover plate 4 and located between the two sliding grooves 21. The assisting block 31 can provide a force fulcrum, which facilitates the sliding of the protective cover plate 4.

[0028] See Figure 1 , Figure 2As shown, a decorative baffle 41 is connected between the two slide grooves 21. The decorative baffle 41 is located on the lower side of the slide groove 21 and is used to limit the movement of the assist lever 31 and to conceal the shielding part 5. When the protective cover plate 4 slides down and abuts against the decorative baffle 41, the through hole 6 exposes the lock cylinder hole 2, while the shielding part 5 is concealed inside the decorative baffle 41. Thus, the decorative baffle 41 improves the overall aesthetics and prevents malicious tools from inserting into the gaps and causing damage.

[0029] In this utility model, the handle 3 has an L-shaped structure, including a connecting part 51 and a handle part 52 located at the outer end of the connecting part 51. The other end of the connecting part 51 is connected to the door lock housing 1.

[0030] See Figure 3 , Figure 4 As shown, the locking device includes a cavity 61 located within the connecting portion 51. Insert rods 62 are inserted into the cavity 61 from front to back. A locking hook 63 is provided at the upper end of the protective cover plate 4. An opening 64 communicating with the cavity 61 is provided on the lower side of the connecting portion 51. The locking hook 63 can be inserted into the cavity 61 through the opening 64 and hooked onto the insert rod 62. The insert rod 62 and the locking hook 63 form a hook-and-loop lock, which requires force to be applied in a specific direction to release, preventing the protective cover plate 4 from being forcibly pried open.

[0031] It is worth mentioning that the locking hook 63 is inserted into the cavity 61 through the lower opening 64 to complete the locking, which is highly concealed and makes it difficult for attackers to directly destroy the locking device.

[0032] Furthermore, a first baffle 71 is provided on the insertion rod 62, and a spring 72 is also sleeved on the insertion rod 62. One end of the spring 72 abuts against the first baffle 71, and the other end abuts against the inner wall of the cavity 61. The insertion rod 62 is connected to the locking hook 63 by the action of the spring 72. A second baffle 73 is provided in the cavity 61 to limit the first baffle 71. The spring 72 drives the insertion rod 62 to automatically rebound, ensuring that the locking device takes effect immediately when the protective cover 4 is closed, without manual intervention. In addition, the first baffle 71 and the second baffle 73 cooperate to limit the stroke of the insertion rod 62.

[0033] A decorative block 81 is provided at the outer end of the insertion rod 62. The surface of the decorative block 81 can be designed with anti-slip texture or brand logo, taking into account both practicality and appearance design. The decorative block 81 can cover the outer end of the insertion rod 62 to prevent attackers from identifying the structure of the locking device and damaging it in a targeted manner.

[0034] The protective cover 4 and the locking hook 63 are integrally formed from a high-hardness alloy material.

[0035] The person skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and all the changes and improvements fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A vandal-resistant outer shell for a mechanical lock, comprising a door lock shell (1), a lock cylinder hole (2) and a handle (3) provided on the front side of the door lock shell (1), the handle (3) being disposed above the lock cylinder hole (2), characterized in that: A protective cover plate (4) is also slidably mounted on the front side of the door lock housing (1). The protective cover plate (4) includes a blocking part (5) and a through hole part (6). A locking device is also provided on the handle (3). The protective cover plate (4) can block the lock cylinder hole (2) with its blocking part (5) or expose the lock cylinder hole (2) with its through hole part (6) by sliding up and down. When the blocking part (5) blocks the lock cylinder hole (2), the locking device can lock the protective cover plate (4).

2. The tamper-proof outer shell of a mechanical lock according to claim 1, characterized in that: There are symmetrical sliding grooves (21) on the front side of the door lock housing (1), and the protective cover (4) slides up and down in the two sliding grooves (21).

3. The tamper-proof outer shell of a mechanical lock according to claim 2, characterized in that: An assist block (31) is provided on the protective cover plate (4) and between the two slides (21).

4. The tamper-proof outer shell of a mechanical lock according to claim 3, characterized in that: A decorative baffle (41) is connected between the two slides (21). The decorative baffle (41) is located on the lower side of the slide (21) and is used to limit the movement of the assist block (31) and to store and cover the shield (5). When the protective cover (4) slides down and abuts against the decorative baffle (41), the through hole (6) exposes the lock cylinder hole (2), while the shield (5) is stored inside the decorative baffle (41).

5. The tamper-proof outer shell of a mechanical lock according to claim 1, characterized in that: The handle (3) has an L-shaped structure, including a connecting part (51) and a handle part (52) located at the outer end of the connecting part (51). The other end of the connecting part (51) is connected to the door lock housing (1).

6. The tamper-proof outer shell of a mechanical lock according to claim 5, characterized in that: The locking device includes a cavity (61) provided in the connecting part (51), a rod (62) inserted in the cavity (61) at the front and back, a locking hook (63) provided at the upper end of the protective cover plate (4), and an opening (64) connected to the cavity (61) provided on the lower side of the connecting part (51). The locking hook (63) can be inserted into the cavity (61) through the opening (64) and hooked onto the rod (62).

7. The tamper-proof outer shell of a mechanical lock according to claim 6, characterized in that: A first baffle (71) is provided on the insertion rod (62), and a spring (72) is also sleeved on the insertion rod (62). One end of the spring (72) abuts against the first baffle (71), and the other end abuts against the inner wall of the cavity (61). The insertion rod (62) is connected to the locking hook (63) by the action of the spring (72). A second baffle (73) is provided in the cavity (61) to limit the first baffle (71).

8. The tamper-proof outer shell of a mechanical lock according to claim 7, characterized in that: A decorative block (81) is provided at the outer end of the insertion rod (62).

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