Damping self-locking assembly for steel anti-knock door

Abstract

The utility model belongs to the technical field of steel anti-knock doors, and particularly relates to a damping self-locking assembly for a steel anti-knock door, which comprises a lock cylinder assembly, a first lock opening assembly and a second lock opening assembly, the lock cylinder assembly comprises a first positioning plate, the outer side wall of the first positioning plate is fixedly provided with a plurality of first positioning holes, and the first positioning holes are communicated with the first positioning plate. A first sliding rail and a second sliding rail are fixedly arranged on the front side wall of the first positioning plate. The anti-knock door has the advantages that when the anti-knock door is self-locked, the first spring bolt is inserted into the limiting pipe, when external force impacts on the anti-knock door, impact force transmitted to the lock cylinder assembly is transmitted to the first lock opening assembly and the second lock opening assembly, the first spring bolt pushes the limiting pipe, the spring elastically buffers the impact force on the limiting pipe, and the anti-knock door is self-locked. The anti-knock door lock cylinder assembly has the advantages that the anti-knock door lock cylinder assembly is simple in structure, time of impact force acting on the second positioning plate and the retaining shell is delayed, the limiting pipe is damped and protected, the second spring bolt is inserted into the clamping block and transmits part of the impact force to the second positioning plate, and the connecting strength of the lock cylinder assembly and the anti-knock door is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel explosion-proof doors, in particular to a shock-absorbing self-locking component used for steel explosion-proof doors. Background Art

[0002] Steel blast-resistant doors are security doors specially designed to resist explosion shock waves and fragments. They are widely used in military facilities, research laboratories, high-security warehouses and certain industrial sites.

[0003] The existing explosion-proof doors are basically locked or unlocked by the lateral movement of the lock core, but the lock tongue of this lock assembly and the lock hole of the door frame are only horizontally slidably matched, and there is no shock-absorbing device in the longitudinal direction of the lock core and the lock hole in the horizontal plane. When the explosion-proof door is subjected to impact force, the impact force transmitted to the lock core will directly and quickly act on the lock hole, which can easily cause damage to the lock hole.

[0004] To solve the above problems, we propose a shock-absorbing self-locking component for steel explosion-resistant doors. Utility Model Content

[0005] The utility model aims to solve the problems in the background technology and proposes a shock-absorbing self-locking component for a steel explosion-proof door.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a shock-absorbing self-locking component for steel explosion-proof doors, comprising a lock core component, a lock assembly 1 and a lock assembly 2, the lock core component comprising a positioning plate 1, the outer side wall of the positioning plate 1 is fixedly provided with a plurality of positioning holes 1, the front side wall of the positioning plate 1 is fixedly provided with a slide rail 1 and a slide rail 2, the slide rail 1 is located on the left side of the slide rail 2, the slide rail 1 and the slide rail 2 are respectively slidably inserted with a lock tongue 1 and a lock tongue 2, the outer side walls of the slide rail 1 and the slide rail 2 are fixed together A handle is connected, and an elastic plate is arranged on the rear side of the handle, two ends of the elastic plate extend into the interior of slide rail 1 and slide rail 2 respectively, the ends of the lock tongue 1 and lock tongue 2 are rotatably connected to the ends of the elastic plate respectively, when the elastic plate is naturally extended, the lock tongue 1 and lock tongue 2 connected to the ends of the elastic plate extend outward from the slide rail 1 and slide rail 2 respectively, the lock assembly 1 and lock assembly 2 are respectively located on the left and right sides of the lock core assembly, the lock core assembly is fixedly connected to the explosion-proof door, and the lock assembly 1 and lock assembly 2 are both fixedly connected to the door frame.

[0007] In the above-mentioned shock-absorbing self-locking assembly for steel explosion-proof doors, the lock assembly 1 includes a positioning plate 2, the outer wall of the positioning plate 2 is provided with a plurality of positioning holes 2, the front side wall of the positioning plate 2 is fixedly connected with a baffle shell, the middle part of the baffle shell is arched outward, and the front side wall of the baffle shell is symmetrically provided with guide holes, the front side wall of the positioning plate 2 is fixedly provided with two guide columns corresponding to the two guide holes respectively, the outer wall sliding sleeve of the guide column is provided with a limiting tube located inside the baffle shell, the outer wall of the limiting tube is fixedly connected with a spring between the positioning plate 2 and the baffle shell, a recess is provided in the middle part of the right side wall of the baffle shell, and the end of the guide column is provided with a fixing plate located outside the baffle shell.

[0008] In the above-mentioned shock-absorbing self-locking assembly for steel explosion-proof doors, the lock assembly 2 includes a positioning plate 3, the front side wall of the positioning plate 3 is fixedly provided with a block, the outer side wall of the block is provided with an arc surface, and the outer side wall of the block is provided with a limit groove with a notch to the left.

[0009] In the above-mentioned shock-absorbing self-locking assembly for steel explosion-proof doors, the front side wall of the positioning plate three is fixedly connected with a baffle, and the left side wall of the baffle is fixedly connected with a clamping block.

[0010] In the above-mentioned shock-absorbing self-locking assembly for steel explosion-proof doors, the length of the first slide rail is smaller than the length of the second slide rail.

[0011] In the above-mentioned shock-absorbing self-locking assembly for steel explosion-proof doors, the front side wall of the limiting tube is provided with a pad aligned with the notch, and the middle part of the elastic plate is fixedly connected with a push rod that penetrates the positioning plate backward.

[0012] Compared with the existing technology, the advantages of the shock-absorbing self-locking assembly for steel explosion-proof doors are:

[0013] When the explosion-proof door of the utility model is self-locking, the lock tongue 1 is inserted in the limiting tube. When an external force impacts the explosion-proof door, the impact force transmitted to the lock core assembly is transmitted to the lock mouth assembly 1 and the lock mouth assembly 2. The lock tongue 1 pushes the limiting tube, and the spring elastically buffers the impact force on the limiting tube, delaying the time for the impact force to act on the positioning plate 2 and the baffle shell, thereby playing a shock-absorbing and protective role for the limiting tube. At the same time, because the lock tongue 2 is inserted in the card block, the lock tongue 2 transmits part of the impact force to the positioning plate 2, further improving the connection strength between the lock core assembly and the explosion-proof door. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is one of the structural schematic diagrams of a shock-absorbing self-locking assembly for a steel explosion-proof door proposed by the utility model;

[0015] Figure 2 This is the second structural schematic diagram of a shock-absorbing self-locking assembly for a steel explosion-proof door proposed by the utility model;

[0016] Figure 3 The utility model is a structural schematic diagram of a lock assembly 1 of a shock-absorbing self-locking assembly for a steel explosion-proof door.

[0017] In the figure: 1 positioning plate 1, 2 positioning hole 1, 3 slide rail 1, 4 slide rail 2, 5 lock tongue 1, 6 lock tongue 2, 7 handle, 8 elastic plate, 9 positioning plate 2, 10 baffle shell, 11 guide hole, 12 guide column, 13 limiting tube, 14 spring, 15 notch, 16 fixing plate, 17 positioning plate 3, 18 block, 19 limiting groove, 20 baffle plate, 21 cushion block. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] Reference Figure 1-Figure 3 A shock-absorbing self-locking assembly for a steel explosion-proof door, comprising a lock core assembly, a lock assembly 1 and a lock assembly 2, wherein the lock assembly 1 and the lock assembly 2 are respectively located on the left and right sides of the lock core assembly, the lock core assembly is fixedly connected to the explosion-proof door, and the lock assembly 1 and the lock assembly 2 are both fixedly connected to the door frame, the lock core assembly comprises a positioning plate 1, a plurality of positioning holes 1 are fixedly opened on the outer wall of the positioning plate 1, a slide rail 1 3 and a slide rail 2 4 are fixedly arranged on the front side wall of the positioning plate 1, the slide rail 1 3 is located on the left side of the slide rail 2 4, a lock tongue 1 5 and a lock tongue 2 6 are respectively slidably inserted in the slide rail 1 3 and the slide rail 2 4, and the outer ends of the lock tongue 1 5 and the lock tongue 2 6 are inclined The outer side walls of the slide rails 1 3 and 2 4 are fixedly connected with a handle 7, and an elastic plate 8 is arranged on the rear side of the handle 7. The two ends of the elastic plate 8 extend into the interior of the slide rails 1 3 and 2 4 respectively, and the ends of the lock tongue 1 5 and the lock tongue 2 6 are rotatably connected with the ends of the elastic plate 8 respectively. When the elastic plate 8 is naturally extended, the lock tongue 1 5 and the lock tongue 2 6 connected with the ends of the elastic plate 8 extend outwardly from the slide rails 1 3 and 2 4 respectively. When the elastic plate 8 is squeezed toward the direction of the handle 7, the middle part of the elastic plate 8 bends forward and the two ends contract. Driven by the ends of the elastic plate 8, the lock tongue 1 5 and the lock tongue 2 6 slide inwardly in the slide rails 1 3 and 2 4 respectively.

[0020] The lock assembly 1 includes a positioning plate 29, the outer side wall of the positioning plate 29 is provided with a plurality of positioning holes 2, the front side wall of the positioning plate 29 is fixedly connected with a baffle shell 10, the middle part of the baffle shell 10 is arched outward, and the front side wall of the baffle shell 10 is symmetrically provided with guide holes 11, the front side wall of the positioning plate 29 is fixedly provided with two guide posts 12 corresponding to the two guide holes 11 respectively, the outer side wall of the guide post 12 is slidably sleeved with a limiting tube 13 located inside the baffle shell 10, the inner wall of the limiting tube 13 is vertical and smooth, the outer wall of the limiting tube 13 is fixedly connected with a spring 14 between the positioning plate 29 and the baffle shell 10, under the elastic extrusion action of the spring 14, the limiting tube 13 is located in the middle part of the guide post 12, the middle part of the right side wall of the baffle shell 10 is provided with a notch 15, and the end of the guide post 12 is provided with a fixing plate 16 located outside the baffle shell 10.

[0021] The lock assembly 2 includes a positioning plate 3 17, on which a plurality of positioning holes 3 are provided. A block 18 is fixedly arranged on the front side wall of the positioning plate 3 17, and an outer side wall of the block 18 is provided with an arc surface. The shock-absorbing self-locking assembly is suitable for a single-leaf explosion-proof door, which rotates around a door frame fixedly connected to the positioning plate 3 17. The arc trajectory of the arc surface and the rotation trajectory of the explosion-proof door belong to concentric circles. A limiting groove 19 with a notch to the left is provided on the outer side wall of the block 18. After the explosion-proof door and the door frame are closed, in the state where the elastic plate 8 is naturally extended, the lock tongue 1 5 is inserted in the limiting tube 13, and the lock tongue 2 6 is inserted in the limiting groove 19. When the handle 7 is held and the elastic plate 8 is squeezed in the direction of the handle 7, the end of the elastic plate 8 contracts, driving the lock tongue 1 5 and the lock tongue 2 6 to slide toward the inside of the slide rail 1 3 and the slide rail 2 4, and the lock tongue 1 5 and the lock tongue 2 6 are separated from the limiting tube 13 and the limiting groove 19 respectively. At this time, the handle 7 can be pulled to open the explosion-proof door.

[0022] After the explosion-proof door is opened and the elastic plate 8 is loosened, the elastic plate 8 naturally stretches, and the ends of the lock tongue 1 5 and the lock tongue 2 6 are provided with a sliding-aiding inclined surface, and the outer ends of the lock tongue 1 5 and the lock tongue 2 6 slide outward on the slide rail 1 3 and the slide rail 2 4, wherein the lock tongue 2 6 slides along the arc-shaped outer wall of the block 18 as the explosion-proof door rotates. In the process of closing the explosion-proof door, the lock tongue 1 5 passes through the notch 15 on the baffle shell 10, and then squeezes the limiting tube 13, and the limiting tube 13 squeezes the spring 14. Under the reverse force of the spring 14 and the support of the sliding-aiding inclined surface, the lock tongue 1 5 slides laterally on the limiting tube 13, and the lock tongue 1 5 shrinks into the slide rail 3 until the lock tongue 5 exceeds the front side wall of the limiting tube 13 and is inserted into the limiting tube 13. At this time, the lock tongue 2 6 is also aligned with the limiting groove 19 and inserted into the limiting groove 19, so as to realize the fixation of the explosion-proof door and the door frame.

[0023] The front side wall of the positioning plate three 17 is fixedly connected with a baffle plate 20, and the left side wall of the baffle plate 20 is fixedly connected with the block 18, which improves the connection strength of the block 18 on the positioning plate three 17. The length of the slide rail 3 is smaller than the length of the slide rail 2 4, and the position of the handle 7 is close to the left side of the positioning plate 1, which is convenient for manipulating the handle 7 to push and pull the explosion-proof door. The front side wall of the limiting tube 13 is provided with a pad 21 aligned with the recess 15. The pad 21 helps to protect the outer wall of the limiting tube 13 from the friction of the lock tongue 5. The middle part of the elastic plate 8 is fixedly connected with a push rod that penetrates the positioning plate 1 backward, and a pressing handle is provided on the other side of the explosion-proof door. The pressing handle is linked with the push rod. After pressing the pressing handle, the elastic plate 8 also bends toward the handle 7, thereby realizing the sliding of the above-mentioned lock tongue 1 5 and lock tongue 2 6 in the slide rail 1 3 and the slide rail 2 4.

[0024] The characteristics of this shock-absorbing self-locking component are: the spring 14 elastically buffers the impact force on the limiting tube 13, delays the time for the impact force to act on the positioning plate 29 and the retaining shell 10, and plays a shock-absorbing and protective role for the limiting tube 13. At the same time, since the lock tongue 26 is inserted into the limiting groove 19 on the block 18, the lock tongue 26 transfers part of the impact force to the positioning plate 29, further improving the connection strength between the lock core assembly and the explosion-proof door.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A shock-absorbing self-locking assembly for a steel explosion-proof door, comprising a lock core assembly, a lock assembly 1 and a lock assembly 2, characterized in that: The lock core assembly comprises a positioning plate (1), the outer side wall of the positioning plate (1) is fixedly provided with a plurality of positioning holes (2), the front side wall of the positioning plate (1) is fixedly provided with a slide rail (3) and a slide rail (4), the slide rail (3) is located on the left side of the slide rail (4), a lock tongue (5) and a lock tongue (6) are slidably inserted in the slide rail (3) and the slide rail (4), respectively, the outer side walls of the slide rail (3) and the slide rail (4) are fixedly connected with a handle (7), the rear side of the handle (7) is provided with an elastic plate (8), the elastic plate (8) is arranged on the rear side of the handle (7), and the elastic plate (8) is arranged on the rear side of the handle (7). The two ends of the elastic plate (8) extend into the interior of the first slide rail (3) and the second slide rail (4) respectively, and the ends of the first lock tongue (5) and the second lock tongue (6) are rotatably connected to the ends of the elastic plate (8) respectively. When the elastic plate (8) is naturally extended, the first lock tongue (5) and the second lock tongue (6) connected to the ends of the elastic plate (8) extend outward from the first slide rail (3) and the second slide rail (4) respectively. The first lock assembly and the second lock assembly are respectively located on the left and right sides of the lock core assembly. The lock core assembly is fixedly connected to the explosion-proof door, and the first lock assembly and the second lock assembly are both fixedly connected to the door frame.

2. A shock-absorbing self-locking assembly for a steel explosion-proof door according to claim 1, characterized in that: The lock assembly 1 comprises a positioning plate 2 (9), the outer side wall of the positioning plate 2 (9) is provided with a plurality of positioning holes 2, the front side wall of the positioning plate 2 (9) is fixedly connected with a block shell (10), the middle part of the block shell (10) is arched outward, the front side wall of the block shell (10) is symmetrically provided with guide holes (11), the front side wall of the positioning plate 2 (9) is fixedly provided with two guide posts (12) corresponding to the two guide holes (11) respectively, the outer side wall of the guide post (12) is slidably sleeved with a limiting tube (13) located inside the block shell (10), the outer wall of the limiting tube (13) is fixedly connected with a spring (14) between the positioning plate 2 (9) and the block shell (10), the middle part of the right side wall of the block shell (10) is provided with a notch (15), and the end of the guide post (12) is provided with a fixing plate (16) located outside the block shell (10).

3. A shock-absorbing self-locking assembly for a steel explosion-proof door according to claim 1, characterized in that: The lock assembly 2 comprises a positioning plate 3 (17), a front side wall of the positioning plate 3 (17) is fixedly provided with a clamping block (18), an outer side wall of the clamping block (18) is provided with an arc surface, and a limiting groove (19) with a notch facing left is opened on the outer side wall of the clamping block (18).

4. A shock-absorbing self-locking assembly for a steel explosion-proof door according to claim 3, characterized in that: The front side wall of the positioning plate three (17) is fixedly connected to a baffle (20), and the left side wall of the baffle (20) is fixedly connected to a clamping block (18).

5. The shock-absorbing self-locking assembly for a steel explosion-proof door according to claim 1, characterized in that: The length of the slide rail one (3) is smaller than the length of the slide rail two (4).

6. A shock-absorbing self-locking assembly for a steel explosion-proof door according to claim 2, characterized in that: The front side wall of the limiting tube (13) is provided with a cushion block (21) aligned with the notch (15), and the middle part of the elastic plate (8) is fixedly connected with a push rod which penetrates the positioning plate (1) backwards.

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