Lock body protection structure and door lock

Abstract

The utility model relates to the technical field of locks, and discloses a lock body protection structure and a door lock, the lock body protection structure comprises a lock body, the lock body comprises a first plate body and a second plate body which are oppositely arranged in a spaced mode in the thickness direction, and the first plate body is provided with a square rod hole and a protection cover mounting hole in the direction close to the second plate body in the thickness direction; the protection plate is arranged on the side, away from the second plate body, of the first plate body in the thickness direction, and the protection plate is suitable for shielding the square rod hole and the protection cover mounting hole. According to the lock body protection structure provided by the utility model, the protection plate is arranged on one side of the lock body in the thickness direction, so that the protection plate is fixedly attached to one side, far away from the second plate body, of the first plate body in the thickness direction, and the protection plate shields the square rod hole and the protection cover mounting hole; therefore, external tools are prevented from entering the square rod hole and the protective cover mounting hole through the protective plate, the lock body is prevented from being pushed aside, and the reliability and the safety of the door lock are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of locks, in particular to a lock body protection structure and a door lock. Background Art

[0002] With existing door locks, when the outer panel is removed or damaged, the lock body is almost completely exposed to the outside. At this time, it is easy to use a tool to pry open the lock body through the square rod hole of the lock body or the lock head shield installation hole to unlock the door. The reliability and safety of the door lock need to be improved. Utility Model Content

[0003] In view of this, the utility model provides a lock body protection structure and a door lock to solve the problem of the existing door lock that the lock body is easily opened for unlocking when the outer panel is removed or damaged.

[0004] In a first aspect, the utility model provides a lock body protection structure, comprising:

[0005] The lock body comprises a first plate body and a second plate body which are arranged relatively spaced apart in the thickness direction, and the first plate body is provided with a square rod hole and a shield mounting hole in the thickness direction toward the second plate body;

[0006] The protection plate is arranged on a side of the first plate body away from the second plate body along the thickness direction, and the protection plate is suitable for shielding the square rod hole and the shield installation hole.

[0007] Beneficial effect: The lock body protection structure provided by the utility model arranges a protective plate on one side of the lock body in the thickness direction, so that the protective plate is fixedly fitted to the side of the first plate body away from the second plate body in the thickness direction, so that the protective plate blocks the square rod hole and the shield mounting hole, thereby preventing external tools from entering the square rod hole and the shield mounting hole through the protective plate, avoiding the lock body from being opened, and improving the reliability and safety of the door lock.

[0008] In an optional embodiment, a mounting column is provided on one side of the protective plate in the thickness direction, and the mounting column is suitable for connecting with the lock body.

[0009] Beneficial effect: By arranging a mounting column on the protective plate, the protective plate is fixed to one side of the lock body in the thickness direction through the mounting column, so that the protective plate covers the square rod hole and the shield mounting hole on the lock body.

[0010] In an optional embodiment, a first through hole is formed on the first plate body; a second through hole is formed on the second plate body, and the second through hole is coaxially arranged with the first through hole;

[0011] The mounting post is suitable for passing through the first through hole along the thickness direction toward the direction close to the second plate body; the lock body protection structure also includes a fastener, which is arranged on the side of the second plate body away from the first plate body along the thickness direction, and the fastener is suitable for passing through the second through hole along the thickness direction toward the direction close to the first plate body and being threadedly connected to the mounting post.

[0012] Beneficial effect: During the assembly process, a protective plate is arranged on the side of the first plate body away from the second plate body along the thickness direction, and the mounting column of the protective plate passes through the first through hole along the thickness direction; a fastener is arranged on the side of the second plate body away from the first plate body along the thickness direction, and the fastener passes through the second through hole along the thickness direction and is threadedly connected to the mounting column, so that the protective plate is fixed and fitted on the outdoor direction side of the lock body. Since the fastener is arranged on the indoor direction side of the lock body, the protective plate is prevented from being easily disassembled on the outdoor direction side, thereby improving the reliability and safety of the door lock.

[0013] In an optional embodiment, a threaded hole is provided at one end of the mounting column away from the protective plate in the thickness direction; a threaded portion is provided at one end of the fastener close to the protective plate in the thickness direction, and the threaded portion is suitable for threaded connection with the threaded hole.

[0014] Beneficial effect: By opening a threaded hole on the mounting column and arranging a threaded portion on the fastener, the threaded portion is threadedly connected and matched with the threaded hole, so that lock bodies of different specifications and thicknesses can be adapted.

[0015] In an optional embodiment, the fastener is further provided with a boss portion, which is arranged on a side of the second plate body away from the first plate body along the thickness direction, and the boss portion is suitable for abutting against the second plate body.

[0016] Beneficial effect: By setting a boss portion on the fastener, during the assembly process, the boss portion can abut against the side of the second plate body away from the first plate body in the thickness direction, which is beneficial to increase the force area between the fastener and the second plate body, thereby enhancing the connection strength between the protective plate and the lock body.

[0017] In an optional embodiment, a lock mounting hole is formed on the first plate body and the second plate body along the thickness direction, and the lock mounting hole is arranged on a side of the shield mounting hole away from the square rod hole along the length direction;

[0018] A plurality of mounting posts are arranged on one side of the protective plate in the thickness direction, and at least two mounting posts are arranged on both sides of the lock head mounting hole in the width direction.

[0019] Beneficial effect: At least two mounting posts are respectively arranged on both sides of the lock head mounting hole in the width direction, and are threadedly connected to the mounting posts through fasteners. While achieving a fixed connection between the protective plate and the lock body, the structural strength of the lock body near the lock head mounting hole can be enhanced.

[0020] In an optional embodiment, at least one mounting column is disposed on one side of the square rod hole in the width direction.

[0021] Beneficial effect: By arranging at least two mounting columns near the lock head mounting hole and at least one mounting column near the square rod hole, the protective plate can be reliably fixed to the outdoor side of the lock body, thereby preventing the protective plate from being bent, ensuring that the protective plate can reliably cover the square rod hole and the shield mounting hole, and improving the reliability and safety of the door lock.

[0022] In an optional embodiment, a mounting through hole corresponding to the lock head mounting hole is formed on the protective plate.

[0023] Beneficial effect: It is convenient to install the lock during the assembly process.

[0024] In an optional embodiment, the protective plate is welded to a side of the first plate body away from the second plate body along the thickness direction.

[0025] Beneficial effect: ensuring the connection strength between the protective plate and the lock body.

[0026] In a second aspect, the utility model further provides a door lock, comprising: a door lock body, and the lock body protection structure as described above.

[0027] Beneficial effects: The door lock of the second aspect includes the lock body protection structure of the first aspect, and therefore, the door lock of the second aspect includes all the beneficial effects of the lock body protection structure of the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 It is a schematic diagram of a lock body protection structure of an embodiment of the utility model close to the first plate side;

[0030] Figure 2 for Figure 1 Sectional view of section AA;

[0031] Figure 3 for Figure 2 Schematic diagram of the assembly of the middle protection plate and fasteners with the lock body;

[0032] Figure 4An exploded view of a protection plate and a lock body of a lock body protection structure according to an embodiment of the utility model;

[0033] Figure 5 It is a schematic diagram of a lock body protection structure of an embodiment of the utility model close to the second plate side;

[0034] Figure 6 for Figure 5 Assembly drawing of the protective plate and fasteners on the middle BB section and the lock body;

[0035] Figure 7 for Figure 5 Assembly drawing of the protective plate and fasteners on the CC section with the lock body;

[0036] Figure 8 The figure is a schematic diagram of the welding connection between a protection plate and a lock body of a lock body protection structure according to an embodiment of the utility model.

[0037] Description of reference numerals:

[0038] 10. Lock body; 101. Square rod hole; 102. Shield mounting hole; 103. Lock head mounting hole; 11. First plate; 111. First through hole; 12. Second plate; 121. Second through hole;

[0039] 20, protective plate; 201, mounting through hole; 21, mounting column; 211, threaded hole;

[0040] 30. fastener; 31. threaded portion; 32. boss portion;

[0041] 40. Solder point. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0043] Combine the following Figures 1 to 8 , describing an embodiment of the utility model.

[0044] According to an embodiment of the present utility model, on the one hand, a lock body protection structure is provided, comprising:

[0045] Lock body 10, see Figure 2As shown, it includes a first plate body 11 and a second plate body 12 arranged relatively spaced apart in the thickness direction, and the first plate body 11 and the second plate body 12 are suitable for jointly enclosing a mounting cavity, and the mounting cavity is suitable for mounting relevant accessories of the lock body; please combine Figure 4 As shown, the first plate body 11 is provided with a square rod hole 101 and a shield mounting hole 102 along the thickness direction toward the second plate body 12;

[0046] The protection plate 20 is fixedly disposed on a side of the first plate body 11 away from the second plate body 12 along the thickness direction. The protection plate 20 is suitable for shielding the square rod hole 101 and the shield installation hole 102 .

[0047] It should be noted that the protective plate 20 is installed according to the opening direction of the door before the lock body is installed on the door to ensure that the protective plate 20 is in the outdoor direction. For the sake of better explanation and understanding, the following explanation is given by taking the first plate body 11 as an example in which the side of the lock body 10 close to the outdoor direction.

[0048] Furthermore, the protection plate 20 is disposed in close contact with the first plate body 11 .

[0049] The lock body protection structure provided by the utility model is configured such that a protection plate 20 is arranged on one side of the lock body 10 in the thickness direction, so that the protection plate 20 is fixedly fitted to the side of the first plate 11 away from the second plate 12 in the thickness direction, so that the protection plate 20 blocks the square rod hole 101 and the shield mounting hole 102, thereby preventing external tools from entering the square rod hole 101 and the shield mounting hole 102 through the protection plate 20, thereby preventing the lock body from being opened and improving the reliability and safety of the door lock.

[0050] In some embodiments, see Figure 2 As shown, a mounting column 21 is provided on one side of the protective plate 20 in the thickness direction, and the mounting column 21 is suitable for connecting with the lock body 10 .

[0051] Furthermore, the mounting post 21 and the lock body 10 may be connected by bolts and / or screws.

[0052] In this embodiment, a mounting column 21 is provided on the protective plate 20 , so that the protective plate 20 is fixed to one side of the lock body 10 in the thickness direction through the mounting column 21 , so that the protective plate 20 covers the square rod hole 101 and the shield mounting hole 102 on the lock body 10 .

[0053] In some embodiments, see Figure 3 As shown, the first plate body 11 is provided with a first through hole 111; the second plate body 12 is provided with a second through hole 121, and the second through hole 121 is coaxially arranged with the first through hole 111;

[0054] The mounting column 21 is suitable for passing through the first through hole 111 along the thickness direction toward the second plate body 12; the lock body protection structure also includes a fastener 30, which is arranged on the side of the second plate body 12 away from the first plate body 11 along the thickness direction. The fastener 30 is suitable for passing through the second through hole 121 along the thickness direction toward the first plate body 11 and being threadedly connected with the mounting column 21.

[0055] During the assembly process, a protective plate 20 is arranged on a side of the first plate body 11 away from the second plate body 12 along the thickness direction, and the mounting column 21 of the protective plate 20 passes through the first through hole 111 along the thickness direction; a fastener 30 is arranged on a side of the second plate body 12 away from the first plate body 11 along the thickness direction, and the fastener 30 passes through the second through hole 121 along the thickness direction and is threadedly connected to the mounting column 21, so that the protective plate 20 is fixedly fitted on the outdoor direction side of the lock body 10. Since the fastener 30 is arranged on the indoor direction side of the lock body 10, the protective plate 20 is prevented from being easily disassembled on the outdoor direction side, thereby improving the reliability and safety of the door lock.

[0056] In some embodiments, see Figure 3 As shown, a threaded hole 211 is provided at one end of the mounting column 21 away from the protective plate 20 along the thickness direction; a threaded portion 31 is provided at one end of the fastener 30 close to the protective plate 20 along the thickness direction, and the threaded portion 31 is suitable for threaded connection with the threaded hole 211.

[0057] In this embodiment, a threaded hole 211 is formed on the mounting column 21 , and a threaded portion 31 is provided on the fastener 30 . The threaded portion 31 is threadedly connected with the threaded hole 211 , so that lock bodies of different specifications and thicknesses can be adapted.

[0058] In some embodiments, see Figure 3 As shown, the fastener 30 is further provided with a boss portion 32 , which is disposed on a side of the second plate body 12 away from the first plate body 11 along the thickness direction, and the boss portion 32 is suitable for abutting against the second plate body 12 .

[0059] In this embodiment, by providing a boss portion 32 on the fastener 30, during the assembly process, the boss portion 32 can abut against the side of the second plate body 12 away from the first plate body 11 along the thickness direction, which is beneficial to increase the force bearing area between the fastener 30 and the second plate body 12, thereby enhancing the connection strength between the protective plate 20 and the lock body 10.

[0060] In some embodiments, see Figure 4 As shown, a lock mounting hole 103 is formed on the first plate body 11 and the second plate body 12 along the thickness direction, and the lock mounting hole 103 is arranged on a side of the shield mounting hole 102 away from the square rod hole 101 along the length direction;

[0061] Please combine Figure 5 and Figure 6 As shown, a plurality of mounting posts 21 are disposed on one side of the protective plate 20 in the thickness direction, and at least two mounting posts 21 are disposed on both sides of the lock head mounting hole 103 in the width direction.

[0062] In this embodiment, at least two mounting posts 21 are respectively arranged on both sides of the lock mounting hole 103 in the width direction, and are threadedly connected to the mounting posts 21 through fasteners 30. While achieving a fixed connection between the protective plate 20 and the lock body 10, the structural strength of the lock body 10 near the lock mounting hole 103 can be enhanced.

[0063] In some embodiments, please combine Figure 5 and Figure 7 As shown, at least one mounting post 21 is disposed on one side of the square rod hole 101 in the width direction.

[0064] In this embodiment, by setting at least two mounting columns 21 near the lock head mounting hole 103 and setting at least one mounting column 21 near the square rod hole 101, the protective plate 20 can be reliably fixed to the outdoor side of the lock body 10, thereby avoiding the protective plate 20 from being bent, ensuring that the protective plate 20 can reliably cover the square rod hole 101 and the shield mounting hole 102, and improving the reliability and safety of the door lock.

[0065] In some embodiments, see Figure 6 As shown, the protective plate 20 is provided with a mounting through hole 201 corresponding to the lock head mounting hole 103 to facilitate the installation of the lock head during the assembly process.

[0066] In some embodiments, see Figure 8 As shown, the protection plate 20 can also be welded to a side of the first plate body 11 away from the second plate body 12 along the thickness direction, so as to ensure the connection strength between the protection plate 20 and the lock body 10.

[0067] Furthermore, a plurality of welding points 40 are formed between the protection plate 20 and the first plate body 11 by welding, and the welding points 40 may be arranged at the top corners of the protection plate 20 .

[0068] According to an embodiment of the present utility model, on the other hand, a door lock is provided, comprising: a door lock body, and the lock body protection structure as described above.

[0069] The door lock in the present embodiment includes the lock body protection structure described above, and therefore, the door lock in the present embodiment includes all the beneficial effects of the lock body protection structure described above.

[0070] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A lock body protection structure, characterized in that: include: The lock body (10) comprises a first plate (11) and a second plate (12) which are arranged relatively spaced apart in the thickness direction, wherein the first plate (11) is provided with a square rod hole (101) and a shield mounting hole (102) in the thickness direction towards the second plate (12); A protective plate (20) is arranged on a side of the first plate body (11) away from the second plate body (12) in the thickness direction, and the protective plate (20) is suitable for shielding the square rod hole (101) and the shield installation hole (102).

2. The lock body protection structure according to claim 1, characterized in that: A mounting column (21) is provided on one side of the protective plate (20) in the thickness direction, and the mounting column (21) is suitable for being connected to the lock body (10).

3. The lock body protection structure according to claim 2, characterized in that: The first plate body (11) is provided with a first through hole (111); the second plate body (12) is provided with a second through hole (121), and the second through hole (121) is coaxially arranged with the first through hole (111); The mounting column (21) is suitable for passing through the first through hole (111) along the thickness direction toward the second plate body (12); the lock body protection structure also includes a fastener (30), the fastener (30) is arranged on a side of the second plate body (12) away from the first plate body (11) along the thickness direction, and the fastener (30) is suitable for passing through the second through hole (121) along the thickness direction toward the first plate body (11) and being threadedly connected to the mounting column (21).

4. The lock body protection structure according to claim 3, characterized in that: A threaded hole (211) is provided at one end of the mounting column (21) away from the protective plate (20) in the thickness direction; a threaded portion (31) is provided at one end of the fastener (30) close to the protective plate (20) in the thickness direction, and the threaded portion (31) is suitable for being threadedly connected with the threaded hole (211).

5. The lock body protection structure according to claim 3, characterized in that: The fastener (30) is also provided with a boss portion (32), which is arranged on a side of the second plate body (12) away from the first plate body (11) in the thickness direction, and the boss portion (32) is suitable for abutting against the second plate body (12).

6. The lock body protection structure according to any one of claims 2 to 5, characterized in that: A lock mounting hole (103) is formed on the first plate body (11) and the second plate body (12) along the thickness direction, and the lock mounting hole (103) is arranged on a side of the shield mounting hole (102) away from the square rod hole (101) along the length direction; A plurality of mounting posts (21) are provided on one side of the protective plate (20) in the thickness direction, and at least two of the mounting posts (21) are respectively provided on both sides of the lock head mounting hole (103) in the width direction.

7. The lock body protection structure according to claim 6, characterized in that: At least one of the mounting columns (21) is arranged on one side of the square rod hole (101) in the width direction.

8. The lock body protection structure according to claim 6, characterized in that: The protective plate (20) is provided with a mounting through hole (201) corresponding to the lock head mounting hole (103).

9. The lock body protection structure according to claim 1, characterized in that: The protective plate (20) is welded to a side of the first plate body (11) away from the second plate body (12) along the thickness direction.

10. A door lock, characterized in that: include: A door lock body, and a lock body protection structure as described in any one of claims 1 to 9 above.

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