Locking structure and security door

Abstract

The utility model relates to the related technical field of security doors, in particular to a locking structure and a security door, the locking structure comprises a locking structure main body, a spring bolt, a lubricating device and a lock cylinder, the locking structure main body is provided with a handle rotating hole, the left side face of the locking structure main body is provided with a spring bolt groove, and the locking structure main body is provided with a rotating limiting groove; the spring bolt is slidably mounted in the spring bolt groove; the lock cylinder is rotationally mounted in the locking structure main body; the lubricating device is fixedly installed in the locking structure body and located at the upper end of the lock tongue and the upper end of the lock cylinder. The graphite block is tightly attached to the grinding plate through the elastic piece, then the poke rod is poked to drive the lubricating sliding block assembly to move back and forth, and therefore the graphite block is driven to repeatedly rub on the grinding plate. And the ground graphite powder is scattered to the spring bolt and the lock cylinder through the falling hole, so that lubrication is provided for the locking device, resistance caused by rust is reduced, and the using effect of the locking structure is optimized.

Description

Technical Field

[0001] The utility model relates to the technical field related to security doors, in particular to a locking structure and a security door. Background Art

[0002] Security doors are door products used to provide security, with functions such as fireproofing, anti-theft, explosion-proofing, and bulletproofing. They are widely used in various places, such as residential areas, commercial buildings, factory warehouses, etc. Security doors are generally made of strong and durable materials, with anti-rust and anti-corrosion coatings on the surface. They are usually equipped with high-strength locks and anti-pry measures to enhance the safety performance of the door.

[0003] However, in the prior art, the locking structure of the security door is usually made of metal, which is prone to rust over time. Excessive accumulation of rust causes the locking structure to become stuck or even become stuck and unusable. In addition, the locking structure is usually embedded in the interior of the security door, making it difficult to clean the rust or add lubricant. Therefore, the present invention proposes a locking structure and a security door to solve the above problems. Utility Model Content

[0004] The purpose of the present invention is to provide a locking structure and a security door to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a locking structure, comprising:

[0006] A locking structure body, wherein the locking structure body is provided with a handle rotation hole, a lock tongue groove is provided on the left side of the locking structure body, and a rotation limit groove is provided on the locking structure body;

[0007] A lock tongue, wherein the lock tongue is slidably mounted in the lock tongue groove;

[0008] A lock core, the lock core being rotatably mounted inside the locking structure body;

[0009] A lubricating device is fixedly installed in the locking structure body, and the lubricating device is located at the upper end of the lock tongue and the lock core. The lubricating device includes a lubricating slider assembly, a grinding plate, a lubricating slider body, a toggle rod, a pressure plate, an elastic sheet, a graphite block and a slider guide rod.

[0010] Preferably, the lock core is provided with a handle installation socket, and the handle socket corresponds to the position of the handle rotation hole. The lock core is provided with a rotation limit block, and the rotation limit block is embedded in the rotation limit groove.

[0011] Preferably, a support base is provided on the main body of the locking structure, and the support base is located at the left end of the lock core. A sliding groove is provided at the upper end of the lock core. A lock tongue pull rod is fixedly installed on the right side of the lock tongue. A pull rod limit block is fixedly installed on the right side of the lock tongue pull rod. The lock tongue pull rod is slidably installed in the support base and the sliding groove. A spring is fixedly installed between the support base and the sliding groove.

[0012] Preferably, the grinding plate is fixedly installed on the main body of the locking structure, and the main body of the locking structure is located at the upper ends of the lock tongue and the lock core. Multiple groups of friction protrusions and falling holes are equidistantly arranged on the upper surface of the grinding plate.

[0013] Preferably, both ends of the main body of the locking structure are fixedly connected to both ends of the slider guide rod, and the slider guide rod is located at the upper end of the grinding plate. A lubricating slider assembly is slidably installed on the slider guide rod. The lubricating slider assembly includes a lubricating slider main body, a toggle rod, a pressing plate, an elastic sheet and a graphite block. A group of elastic sheets are fixedly installed on the lubricating slider main body. The lower end of the elastic sheet is fixedly installed with the pressing plate, and the pressing plate is slidably installed inside the lubricating slider main body. A graphite block is embedded at the lower end of the pressing plate.

[0014] Preferably, a rotating shaft is fixedly installed on one side of the upper end of the main body of the locking structure. A protective cover plate is rotatably installed on the rotating shaft. A row of toggle rod grooves is provided on the protective cover plate. A toggle rod is fixedly installed on the outer side surface of the lubricating slider main body, and the toggle rod is slidably installed in the toggle rod grooves.

[0015] Preferably, a magnetic strip is installed on the left side of the upper end of the main body of the locking structure and the left side of the protective cover plate respectively, and the positions of the magnetic strips correspond to each other, and the magnetic surfaces of the magnetic strips are opposite.

[0016] A security door, the security door has the above-mentioned locking structure.

[0017] Compared with the prior art, the beneficial effects of the present utility model are:

[0018] 1. By setting up a locking structure composed of a locking structure main body, a lock tongue, a lubricating device and a lock core, the graphite block is closely attached to the grinding plate through the elastic sheet, and then the toggle rod is toggled to drive the lubricating slider assembly to move back and forth, thereby driving the graphite block to repeatedly rub on the grinding plate, and then the ground graphite powder is scattered onto the lock tongue and the lock core through the falling holes, so as to provide lubrication for the locking device, thereby reducing the resistance caused by rust and optimizing the use effect of the locking structure.

[0019] 2. By symmetrically arranging the elastic sheets with curved surfaces, a more uniform downward pressure is provided for the graphite block, so that the ground graphite powder is more uniform, thereby uniformly discharging the material, and the graphite powder uniformly covers the lock tongue and the lock core, thereby providing a better lubrication effect. Description of the Drawings

[0020] Figure 1This is a schematic diagram of the structure of the utility model;

[0021] Figure 2 for Figure 1 A schematic diagram of the structure at center A;

[0022] Figure 3 This is a half-section front view of the utility model;

[0023] Figure 4 This is a half-section view of the utility model;

[0024] Figure 5 for Figure 4 A magnified schematic diagram of the structure at point B in the middle;

[0025] Figure 6 This is the rear view of the structure of the utility model;

[0026] Figure 7 This is a side view of the structure of the utility model;

[0027] Figure 8 It is a half-section top view of the utility model.

[0028] In the figure: locking structure main body 1, lock tongue 2, lubrication device 3, lock cylinder 4, lubrication slider assembly 5, grinding plate 6, lubrication slider main body 7, toggle rod 8, pressure plate 9, elastic sheet 10, graphite block 11, slider guide rod 12, rotation limit block 14, handle mounting socket 15, sliding groove 16, lock tongue pull rod 17, pull rod limit block 18, support seat 19, spring 20, mounting hole 21, rotation limit groove 22, handle rotation hole 23, protective cover 24, rotating shaft 25. DETAILED DESCRIPTION

[0029] In order to clearly and completely describe the purpose and technical solution of the present invention and make its advantages more clearly understood, the following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention and are not intended to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1-8 , the utility model provides the following three preferred embodiments:

[0031] Example 1

[0032] A locking structure, comprising: a locking structure body 1, a lock tongue 2, a lubricating device 3 and a lock core 4, wherein the locking structure body 1 is provided with a handle rotation hole 23, a lock tongue groove is provided on the left side of the locking structure body 1, and a rotation limiting groove 22 is provided on the locking structure body 1; the lock tongue 2 is slidably installed in the lock tongue groove; the lock core 4 is rotatably installed inside the locking structure body 1; the lubricating device 3 is fixedly installed in the locking structure body 1, and the lubricating device 3 is located at the upper end of the lock tongue 2 and the lock core 4, and the lubricating device 3 includes a lubricating slider assembly 5, a grinding plate 6, a lubricating slider body 7, A toggle rod 8, a pressure plate 9, an elastic sheet 10, a graphite block 11 and a slider guide rod 12; a locking structure consisting of a locking structure main body 1, a lock tongue 2, a lubrication device 3 and a lock core 4 is set, and the graphite block 11 is tightly fitted to the grinding plate 6 through the elastic sheet 10, and then the toggle rod 8 is used to drive the lubrication slider assembly 5 to move back and forth, thereby driving the graphite block 11 to repeatedly rub against the grinding plate 6; and then the ground graphite powder is sprinkled onto the lock tongue 2 and the lock core 4 through the drop hole, thereby providing lubrication for the locking device, thereby reducing the resistance caused by rust and optimizing the use effect of the locking structure.

[0033] The lock core 4 is provided with a handle installation hole 15, and the handle hole 15 corresponds to the handle rotation hole 23. The lock core 4 is provided with a rotation limit block 14, and the rotation limit block 14 is embedded in the rotation limit groove 22.

[0034] A support seat 19 is provided on the locking structure body 1, and the support seat 19 is located at the left end of the lock cylinder 4. A sliding groove 16 is provided at the upper end of the lock cylinder 4. A lock tongue pull rod 17 is fixedly installed on the right side of the lock tongue 2, and a pull rod limit block 18 is fixedly installed on the right side of the lock tongue pull rod 17. The lock tongue pull rod 17 is slidably installed in the support seat 19 and the sliding groove 16. A spring 20 is fixedly installed between the support seat 19 and the sliding groove 16;

[0035] The grinding plate 6 is fixedly mounted on the locking structure body 1, and the locking structure body 1 is located above the lock tongue 2 and the lock core 4. A plurality of groups of friction protrusions and drop holes are equidistantly arranged on the upper surface of the grinding plate 6.

[0036] The two ends of the locking structure body 1 are fixedly connected to the two ends of the slider guide rod 12, and the slider guide rod 12 is located at the upper end of the grinding plate 6. The lubricating slider assembly 5 is slidably installed on the slider guide rod 12. The lubricating slider assembly 5 includes a lubricating slider body 7, a toggle rod 8, a pressure plate 9, an elastic sheet 10 and a graphite block 11. A group of elastic sheets 10 are fixedly installed on the lubricating slider body 7. The lower end of the elastic sheet 10 is fixedly installed with a pressure plate 9, and the pressure plate 9 is slidably installed inside the lubricating slider body 7. A graphite block 11 is embedded in the lower end of the pressure plate 9;

[0037] One side of the upper end of the main body 1 of the locking structure is fixedly installed with a rotating shaft 25. A protective cover plate 24 is rotatably installed on the rotating shaft 25. A row of toggle rod grooves are provided on the protective cover plate 24. A toggle rod 8 is fixedly installed on the outer side surface of the lubricating slider main body 7, and the toggle rod 8 is slidably installed in the toggle rod groove;

[0038] A magnetic strip is installed on the left side of the upper end of the main body 1 of the locking structure and the left side of the protective cover plate 24 respectively, and the positions of the magnetic strips correspond to each other, and the magnetic surfaces of the magnetic strips are opposite;

[0039] Embodiment 2

[0040] On the basis of Embodiment 1, by symmetrically arranging the elastic sheets 10 with curved surfaces, a more uniform downward pressure is provided for the graphite block 11, so that the ground graphite powder is more uniform;

[0041] Embodiment 3

[0042] On the basis of Embodiment 2, a security door has the above-mentioned locking structure;

[0043] Working principle: In actual use, first open the protective cover plate 24, push up the pressing plate 9 to put the graphite block 11 in, push down the pressing plate 9 through the elastic sheet 10, and then push the graphite block 11 by the pressing plate 9 to make the graphite block 11 closely fit the grinding plate 6. Then close the protective cover plate 24. By toggling the toggle rod 8 back and forth, the lubricating slider assembly 5 is driven by the toggle rod 8 to move back and forth on the slider guide rod 12, so as to drive the graphite block 11 to rub back and forth on the friction protrusions of the grinding plate 6 to generate graphite powder. Finally, the graphite powder is evenly scattered into the lower lock tongue 2 and lock core 4 through the material dropping holes provided on the grinding plate 6, so as to provide lubrication for the locking device, thereby reducing the resistance caused by rust and optimizing the use effect.

[0044] Although the above description of the illustrative specific embodiments of the present application is made to enable those skilled in the art to understand the present application, the present application is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present application defined and determined by the appended claims, all application creations using the concept of the present application are within the scope of protection.

Claims

1. A locking structure, characterized in that: The locking structure comprises: A locking structure body (1), wherein the locking structure body (1) is provided with a handle rotation hole (23), a locking tongue groove is provided on the left side of the locking structure body (1), and a rotation limiting groove (22) is provided on the locking structure body (1); A lock tongue (2), wherein the lock tongue (2) is slidably mounted in the lock tongue groove; A lock core (4), the lock core (4) being rotatably mounted inside the locking structure body (1); A lubricating device (3) is fixedly installed in the locking structure body (1), and the lubricating device (3) is located at the upper end of the lock tongue (2) and the lock core (4). The lubricating device (3) includes a lubricating slider assembly (5), a grinding plate (6), a lubricating slider body (7), a toggle rod (8), a pressure plate (9), an elastic sheet (10), a graphite block (11) and a slider guide rod (12).

2. The locking structure according to claim 1, characterized in that: The lock core (4) is provided with a handle installation socket (15), and the handle socket (15) corresponds to the handle rotation hole (23) in position. The lock core (4) is provided with a rotation limit block (14), and the rotation limit block (14) is embedded in the rotation limit groove (22).

3. The locking structure according to claim 2, characterized in that: A support seat (19) is provided on the locking structure main body (1), and the support seat (19) is located at the left end of the lock core (4); a sliding groove (16) is provided on the upper end of the lock core (4); a lock tongue pull rod (17) is fixedly installed on the right side of the lock tongue (2); a pull rod limit block (18) is fixedly installed on the right side of the lock tongue pull rod (17); and the lock tongue pull rod (17) is slidably installed in the support seat (19) and the sliding groove (16); a spring (20) is fixedly installed between the support seat (19) and the sliding groove (16).

4. A locking structure according to claim 1, wherein: The grinding plate (6) is fixedly mounted on the locking structure body (1), and the locking structure body (1) is located at the upper end of the lock tongue (2) and the lock core (4), and a plurality of groups of friction protrusions and drop holes are equidistantly arranged on the upper surface of the grinding plate (6).

5. The locking structure according to claim 4, characterized in that: The two ends of the locking structure body (1) are fixedly connected to the two ends of the slider guide rod (12), and the slider guide rod (12) is located at the upper end of the grinding plate (6). A lubricating slider assembly (5) is slidably installed on the slider guide rod (12), and the lubricating slider assembly (5) includes a lubricating slider body (7), a toggle rod (8), a pressure plate (9), an elastic sheet (10) and a graphite block (11). A group of elastic sheets (10) are fixedly installed on the lubricating slider body (7), and a pressure plate (9) is fixedly installed at the lower end of the elastic sheet (10), and the pressure plate (9) is slidably installed inside the lubricating slider body (7), and a graphite block (11) is embedded in the lower end of the pressure plate (9).

6. The locking structure according to claim 5, characterized in that: A rotating shaft (25) is fixedly mounted on one side of the upper end of the locking structure main body (1), a protective cover plate (24) is rotatably mounted on the rotating shaft (25), a row of toggle rod grooves is provided on the protective cover plate (24), a toggle rod (8) is fixedly mounted on the outer side surface of the lubricating slider main body (7), and the toggle rod (8) is slidably mounted in the toggle rod groove.

7. A locking structure according to claim 6, characterized in that: A magnetic strip is installed on the left side of the upper end of the locking structure main body (1) and the left side of the protective cover plate (24), and the positions of the magnetic strips are corresponding, and the magnetic properties of the magnetic strips' contact surfaces are opposite.

8. A security door, characterized in that: The security door has the locking structure described in any one of the above claims 1-7.

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