A security door with a lower lock hole

Abstract

The utility model relates to the technical field of security doors, specifically is a security door of under -set lock hole, including door frame, the rear end of door frame is connected with security door body through the hinge activity, the left end fixed mounting of security door body rear side has the panel, the bottom of panel is provided with the lock core, the upper end of lock core one side is provided with the paddle, the left side of security door body is provided with the lock body corresponding with panel, the middle end of lock body left side is provided with the lock tongue, the middle end fixed connection of lock body inner chamber one side has the guide block. The utility model discloses through the action of lock core, first paddle, second paddle, push board and first spring, make this security door have the advantages such as under -set lock hole and good appearance, solved the lock hole of existing security door and usually located the lower end of external panel, its intuitive exposure in the line of sight, is easy to be destroyed and pries the lock by the lawless personnel, and the problem that the appearance is not good.

Description

Technical Field

[0001] This utility model relates to the field of security door technology, specifically a security door with a bottom-mounted lock hole. Background Technology

[0002] The full name of a security door is "anti-theft security door." It combines the functions of theft prevention and security. Furthermore, the locks used on security doors must be special security door locks with anti-drilling functions that have passed the testing and certification of the Ministry of Public Security's testing center. Security doors can be made of different materials, but only doors that meet the standard testing requirements and obtain a production license for security products can be called security doors.

[0003] Currently, the lock holes of existing security doors are usually located at the bottom of the outer panel, which are directly exposed in the line of sight and are easily damaged and pried by criminals. In addition, they are not aesthetically pleasing. Therefore, we propose a security door with a bottom-mounted lock hole. Utility Model Content

[0004] The purpose of this utility model is to provide a security door with a bottom-mounted lock hole, which has the advantages of a bottom-mounted lock hole and good aesthetics. It solves the problem that the lock hole of existing security doors is usually located at the bottom of the outer panel, which is directly exposed in the line of sight, making it easy for criminals to damage and pick the lock, and it is also not aesthetically pleasing.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a security door with a bottom-mounted lock hole, comprising a door frame, a security door body movably connected to the rear end of the door frame via a hinge, a panel fixedly installed on the left rear side of the security door body, a lock cylinder provided at the bottom of the panel, a lever provided at the upper end of one side of the lock cylinder, a lock body corresponding to the panel provided on the left side of the security door body, a lock tongue provided at the middle of the left side of the lock body, a guide block fixedly connected to the middle of one side of the lock body cavity, and a sliding connection of a guide block to the inner surface of the guide block. A guide rod is fixedly connected to the right end of the latch at one end. A first spring is sleeved on the outer surface of the guide rod located between the guide block and the latch. A push plate is fixedly connected to the right side of the guide rod. A fixed shaft is fixedly connected to the lower end of the inner cavity of the lock body. A movable sleeve is movably connected to the outer side of the fixed shaft. A first paddle plate that fits against the paddle is fixedly connected to the rear end of the outer surface of the movable sleeve. A second paddle plate that fits against the left side of the push plate is fixedly connected to the front end of the outer surface of the movable sleeve. A lock groove corresponding to the latch is provided on the front side inside the door frame.

[0006] Preferably, a handle is provided on the rear side of the panel.

[0007] Preferably, the first lever is inclined and the top of the first lever has an arc-shaped structure.

[0008] Preferably, the longitudinal section of the second lever is V-shaped, and the second lever is inclined in the opposite direction to the first lever.

[0009] Preferably, positioning grooves are provided at both the upper and lower ends of the rear side inside the door frame, and grooves corresponding to the positioning grooves are provided at both the upper and lower ends of the right side of the security door body.

[0010] Preferably, a second spring is fixedly connected to the middle of one side of the groove, and a positioning block that slides inside the groove is fixedly connected to one end of the second spring.

[0011] Preferably, the positioning block has a concave structure, and the internal dimension of the positioning groove is 1.2 to 1.5 times the external dimension of the positioning block.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model, by installing a panel and lock body on the security door, allows the lock hole of the security door to be located at the bottom of the panel, avoiding the traditional situation where the lock hole is located at the lower end of one side of the panel, thus improving the external aesthetics of the security door. When the user uses this security door, the corresponding key is inserted into the lock cylinder at the bottom of the panel and turned. When the lock cylinder turns, it drives the paddle to rotate. When the paddle rotates, it drives the movable sleeve to rotate outside the fixed shaft via the first paddle plate. When the movable sleeve rotates, it drives the second paddle plate to move synchronously. The moving second paddle plate drives the push plate to move in linkage. When the push plate moves, it drives the bolt to retract into the lock body via the guide rod and compresses the first spring. After the bolt retracts from the lock groove, the user can open the security door, making it convenient to use.

[0014] 2. This utility model increases security and reduces the risk of being pried open or damaged by placing the keyhole at the bottom of the door, making it difficult to spot. At the same time, the bottom-mounted keyhole is far from common lock-picking locations, increasing the difficulty of breaking into the door and improving the anti-theft effect. Furthermore, the keyhole is hidden and does not affect the overall appearance of the door. In addition, the bottom-mounted keyhole design usually has protective measures to reduce the entry of dust and rainwater, extending the life of the lock. Attached Figure Description

[0015] Figure 1 This is a first-view structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0017] Figure 3 This is an exploded view of the lock body and panel of this utility model;

[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of the present invention from a second perspective;

[0019] Figure 5 This is a schematic diagram of the third-view cross-sectional structure of this utility model.

[0020] In the diagram: 1. Door frame; 2. Security door body; 3. Lock tongue; 4. Positioning groove; 5. Positioning block; 6. Panel; 7. Second spring; 8. Fixed shaft; 9. Movable sleeve; 10. First lever; 11. Lever; 12. Lock cylinder; 13. Groove; 14. Handle; 15. Second lever; 16. Push plate; 17. Lock body; 18. Guide block; 19. Guide rod; 20. Lock groove; 21. First spring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The components of this application, including the door frame 1, security door body 2, lock tongue 3, positioning groove 4, positioning block 5, panel 6, second spring 7, fixed shaft 8, movable sleeve 9, first lever 10, lever 11, lock cylinder 12, groove 13, handle 14, second lever 15, push plate 16, lock body 17, guide block 18, guide rod 19, lock groove 20, and first spring 21, are all general standard parts or parts known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0025] Example 1

[0026] Please see Figures 1-5 As shown, this utility model provides a technical solution: a security door with a bottom-mounted lock hole, including a door frame 1, a security door body 2 connected to the rear end of the door frame 1 via a hinge, a panel 6 fixedly installed on the left rear side of the security door body 2, a handle 14 provided on the rear side of the panel 6, a lock cylinder 12 provided at the bottom of the panel 6, a lever 11 provided at the upper end of one side of the lock cylinder 12, a lock body 17 corresponding to the panel 6 provided on the left side of the security door body 2, a latch 3 provided at the middle of the left side of the lock body 17, a guide block 18 fixedly connected to the middle of one side of the inner cavity of the lock body 17, a guide rod 19 slidably connected to the inner surface of the guide block 18, one end of which is fixedly connected to the right end of the latch 3, the guide rod 19 being located at the guide block 18. A first spring 21 is sleeved on the outer surface between the lock tongue 3 and the lock body 8. A push plate 16 is fixedly connected to the right side of the guide rod 19. A fixed shaft 8 is fixedly connected to the lower end of the inner cavity of the lock body 17. A movable sleeve 9 is movably connected to the outside of the fixed shaft 8. A first lever 10 that fits against the lever 11 is fixedly connected to the rear end of the outer surface of the movable sleeve 9. The first lever 10 is inclined and the top of the first lever 10 has an arc-shaped structure. A second lever 15 that fits against the left side of the push plate 16 is fixedly connected to the front end of the outer surface of the movable sleeve 9. The longitudinal section of the second lever 15 is V-shaped and the second lever 15 is inclined in the opposite direction to the first lever 10. A lock groove 20 corresponding to the lock tongue 3 is provided on the front side inside the door frame 1.

[0027] This technical solution: By installing a panel 6 and a lock body 17 on the security door body 2, the lock hole of the security door body 2 can be located at the bottom of the panel 6, avoiding the traditional situation where the lock hole is located at the lower end of one side of the panel 6, thus improving the external aesthetics of the security door. When the user uses this security door, the corresponding key is inserted into the lock cylinder 12 at the bottom of the panel 6 and turned. When the lock cylinder 12 rotates, it will drive the lever 11 to rotate. When the lever 11 rotates, it can drive the movable sleeve 9 to rotate outside the fixed shaft 8 via the first lever 10. When the movable sleeve 9 rotates, it will drive the second lever 15 to move synchronously. Step 15 will drive the push plate 16 to move in conjunction with the lock. When the push plate 16 moves, it will drive the bolt 3 to retract into the lock body 17 via the guide rod 19 and compress the first spring 21. After the bolt 3 exits the lock groove 20, the user can open the security door 2. It is convenient to use. The key hole is located at the bottom of the door and is not easy to be found, which increases security and reduces the risk of being pried open and damaged. At the same time, the bottom key hole is far away from the common lock prying position, which increases the difficulty of damage and improves the anti-theft effect. In addition, the key hole is hidden and does not affect the overall appearance of the door. At the same time, the bottom key hole design usually has protective measures to reduce the entry of dust and rainwater and extend the life of the lock.

[0028] Example 2

[0029] Based on Embodiment 1, this utility model is as follows: Figures 1-5 As shown, the door frame 1 has positioning grooves 4 at both the upper and lower ends of the rear side inside, and the security door body 2 has grooves 13 at both the upper and lower ends of the right side corresponding to the positioning grooves 4. A second spring 7 is fixedly connected to the middle of one side of the groove 13, and a positioning block 5 that slides inside the groove 13 is fixedly connected to one end of the second spring 7. The positioning block 5 has a concave structure, and the internal dimension of the positioning groove 4 is 1.2 to 1.5 times the external dimension of the positioning block 5.

[0030] This technical solution: By setting the positioning block 5, when the anti-theft door body 2 is closed inside the door frame 1, with the assistance of the second spring 7 and the groove 13, one end of the positioning block 5 enters the interior of the positioning groove 4. Thus, even if some criminals damage the connecting hinge between the door frame 1 and the anti-theft door body 2, the support of the positioning block 5 in the positioning groove 4 can ensure that the anti-theft door body 2 will not fall off or open, thus achieving a good anti-pry effect.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A security door with a recessed lock hole, comprising a door frame (1), characterized in that: The rear end of the door frame (1) is movably connected to the anti-theft door body (2) via a hinge. A panel (6) is fixedly installed on the left side of the rear side of the anti-theft door body (2). A lock cylinder (12) is provided at the bottom of the panel (6). A lever (11) is provided at the upper end of one side of the lock cylinder (12). A lock body (17) corresponding to the panel (6) is provided on the left side of the anti-theft door body (2). A lock tongue (3) is provided at the middle of the left side of the lock body (17). A guide block (18) is fixedly connected to the middle of one side of the inner cavity of the lock body (17). A guide rod (19) is slidably connected to the inner surface of the guide block (18), one end of which is fixedly connected to the right end of the lock tongue (3). A first spring (21) is sleeved on the outer surface of the rod (19) located between the guide block (18) and the latch (3). A push plate (16) is fixedly connected to the right side of the guide rod (19). A fixed shaft (8) is fixedly connected to the lower end of the inner cavity of the lock body (17). A movable sleeve (9) is movably connected to the outer side of the fixed shaft (8). A first lever (10) that fits against the lever (11) is fixedly connected to the rear end of the outer surface of the movable sleeve (9). A second lever (15) that fits against the left side of the push plate (16) is fixedly connected to the front end of the outer surface of the movable sleeve (9). A lock groove (20) corresponding to the latch (3) is provided on the front side inside the door frame (1).

2. A security door with a bottom-mounted lock hole according to claim 1, characterized in that: A handle (14) is provided on the rear side of the panel (6).

3. A security door with a bottom-mounted lock hole according to claim 1, characterized in that: The first dial (10) is inclined and the top of the first dial (10) is an arc-shaped structure.

4. A security door with a bottom-mounted lock hole according to claim 1, characterized in that: The longitudinal section of the second lever (15) is V-shaped, and the second lever (15) is inclined in the opposite direction to the first lever (10).

5. A security door with a bottom-mounted lock hole according to claim 1, characterized in that: The door frame (1) has positioning grooves (4) on both the upper and lower ends of the rear side inside, and the anti-theft door body (2) has grooves (13) on both the upper and lower ends of the right side corresponding to the positioning grooves (4).

6. A security door with a bottom-mounted lock hole according to claim 5, characterized in that: A second spring (7) is fixedly connected to the middle of one side of the groove (13), and a positioning block (5) that slides inside the groove (13) is fixedly connected to one end of the second spring (7).

7. A security door with a bottom-mounted lock hole according to claim 6, characterized in that: The positioning block (5) has a concave structure, and the internal dimension of the positioning groove (4) is 1.2 to 1.5 times the external dimension of the positioning block (5).

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