CN215803793U

CN215803793U - Locking mechanism for protective airtight door

Info

Publication number: CN215803793U
Application number: CN202120238421.3U
Authority: CN
Inventors: 冯克; 黄丰华; 周玉龙; 任玉
Original assignee: Shanxi Fumingrui Protective Equipment Co ltd
Current assignee: Shanxi Fumingrui Protective Equipment Co ltd
Priority date: 2021-01-28
Filing date: 2021-01-28
Publication date: 2022-02-11
Anticipated expiration: 2031-01-28

Abstract

The utility model discloses a locking mechanism for a protective airtight door, which comprises an airtight door and an airtight door frame, wherein a locking groove is formed in the left end of the airtight door frame, a second handle and a first handle are movably mounted at two ends of the bottom and the top of the airtight door respectively, a first guide groove is formed in the left end of the inner wall of the airtight door, a guide bolt is fixedly mounted at the bottom of the first guide groove, a reset spring is arranged in an inner cavity of the first guide groove and sleeved at the left end of a fixed rod, a protection pad is fixedly mounted at one end, close to the airtight door, of the second handle and the first handle, a locking hole is formed in the middle of the second handle, and sliding grooves are formed in the bottom and the top of the inner wall of the airtight door. This blocked mechanical system for airtight door of protection includes airtight door and airtight door frame, wherein adopts the spout structure more, and the mechanical component who adopts is simple, and spare part is few, when breaking down, only need simple change repair can, reduced the work load of maintaining the maintenance.

Description

Locking mechanism for protective airtight door

Technical Field

The utility model relates to the field of machinery, in particular to a locking mechanism for a protective sealing door.

Background

The civil air defense door is a door of a civil air defense engineering access, the civil air defense door comprises a common single door, two protective air tight doors and air tight doors, a movable door threshold is single, multiple civil air defense devices such as the two protective air tight doors and the air tight doors are arranged, a civil air defense door locking mechanism is an important component of the civil air defense door, the locking mechanism of the existing civil air defense door is complex, multiple parts are limited by installation space, the structure size is small, faults easily occur, the workload of maintenance is increased, troubles are brought to overhaul of maintainers, and when some mechanical parts break down, the maintenance is difficult to succeed.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a locking mechanism for a protective sealing door, which can effectively solve the problems in the background technology.

In order to achieve the purpose, the utility model adopts the technical scheme that: a locking mechanism for a protective airtight door comprises an airtight door and an airtight door frame, wherein a locking groove is formed in the left end of the airtight door frame, a second handle and a first handle are movably mounted at the two ends of the bottom and the top of the airtight door respectively, a first guide groove is formed in the left end of the inner wall of the airtight door, a guide bolt is fixedly mounted at the bottom of the first guide groove, a reset spring is arranged in an inner cavity of the first guide groove and sleeved at the left end of a fixed rod, a protection pad is fixedly mounted at one end, close to the airtight door, of the second handle and the first handle, a locking hole is formed in the middle of the second handle, sliding grooves are formed in the bottom and the top of the inner wall of the airtight door respectively and are in sliding connection with a first connecting block and a second connecting block respectively, grooved wheels are fixedly mounted at the back sides of the first connecting block and the second connecting block, and clamping blocks are movably connected at the two ends of the left end and the right end of the second connecting block, the one end difference fixed mounting that airtight door was kept away from to first connecting block and second connecting block has second connecting rod and head rod, the second guide way has all been seted up at the middle part of second connecting rod and head rod right-hand member, the middle part of second guide way is provided with the slide rail, the top and the slider sliding connection of slide rail, slider and third connecting block fixed connection, the right-hand member fixedly connected with tapered end of third connecting block, the middle part fixedly connected with third connecting rod of third connecting block left end.

Preferably, the bottom of the guide bolt penetrates through the inner wall of the first guide groove, and the bottom of the guide bolt and the bottom end of the fixing rod are located at the same horizontal position.

Preferably, the width of the reset spring is equal to the heights of the top end and the bottom end of the inner wall of the first guide groove, and the right end of the reset spring is fixedly connected with the right end of the inner wall of the first guide groove.

Preferably, the left end of the fixed rod penetrates through the first guide groove and is movably connected with the return spring, and the right end of the fixed rod is fixedly connected with the third connecting rod.

Preferably, the bottoms of the first connecting rod and the second connecting rod are fixedly connected with a third connecting rod, and the lower ends of the left sides of the first connecting rod and the second connecting rod are fixedly connected with a fixing rod.

Preferably, the quantity of slide rail has 2, the one end of slide rail and the right-hand member fixed connection of airtight door inner wall, the other end respectively with the middle part fixed connection on first connecting rod and second connecting rod right side.

Preferably, the shape of the lock groove is rectangular, and the lock groove is matched with the lock head.

Compared with the prior art, the utility model has the following beneficial effects: this protective sealing door is with blocked mechanical system, rotate the lockhole through the key, make the fixture block shrink, stimulate the handle simultaneously, thereby drive tapered end move left until breaking away from the locked groove completely, open sealed door, release the handle, the motion through reset spring resets the tapered end, make the tapered end be located within the locked groove, pin sealed door, this blocked mechanical system, wherein adopt the spout structure more, the mechanical component who adopts is simple, spare part is few, when breaking down, only need simple trade repair can, the work load of maintaining the maintenance has been reduced, bring the convenience for maintainer's work.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic view of the slide rail structure of the present invention;

fig. 3 is a schematic view of the chute structure of the present invention.

In the figure: the safety protection device comprises a first handle 1, a protection pad 2, a first connecting rod 3, a locking groove 4, a door frame of a sealed door 5, a first connecting block 6, a clamping block 7, a second handle 8, a second connecting rod 9, a guide bolt 10, a return spring 11, a first guide groove 12, a sealed door 13, a fixing rod 14, a locking head 15, a locking head 16, a second connecting block 17, a second guide groove 17, a sliding block 18, a sliding rail 19, a third connecting block 20, a locking hole 21, a sliding groove 22, a grooved pulley 23 and a third connecting rod 24.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

As shown in fig. 1-3, a locking mechanism for a protective airtight door comprises an airtight door 13 and an airtight door frame 5, wherein a locking groove 4 is formed at the left end of the airtight door frame 5, the locking groove 4 is rectangular, the locking groove 4 is matched with a lock head 15, a second handle 8 and a first handle 1 are movably mounted at two ends of the bottom and the top of the airtight door 13 respectively, a first guide groove 12 is formed at the left end of the inner wall of the airtight door 13, a guide bolt 10 is fixedly mounted at the bottom of the first guide groove 12, the bottom of the guide bolt 10 penetrates through the inner wall of the first guide groove 12, the bottom of the guide bolt 10 and the bottom of a fixed rod 14 are at the same horizontal position, the guide bolt 10 enables the fixed rod 14 to move left and right without rotating, so as to ensure the linear motion of the fixed rod 14, a return spring 11 is arranged in an inner cavity of the first guide groove 12, the width of the return spring 11 is equal to the heights of the top end and the bottom end of the inner wall of the first guide groove 12, the right end of a return spring 11 and the right end of the inner wall of a first guide groove 12 are fixedly connected, the return spring 11 is sleeved at the left end of a fixed rod 14, the left end of the fixed rod 14 penetrates through the first guide groove 12 and is movably connected with the return spring 11, the return spring 11 can reset the fixed rod 14, the right end of the fixed rod 14 is fixedly connected with a third connecting rod 24, one ends of a second handle 8 and a first handle 1, which are close to a sealed door 13, are fixedly provided with a protection pad 2, the middle part of the second handle 8 is provided with a lock hole 21, the bottom and the top of the inner wall of the sealed door 13 are both provided with a sliding groove 22, the sliding groove 22 is respectively and slidably connected with a first connecting block 6 and a second connecting block 16, the back surfaces of the first connecting block 6 and the second connecting block 16 are fixedly provided with a grooved wheel 23, the left end and the right end of the second connecting block 16 are movably connected with a fixture block 7, the lock hole 21 rotates, the fixture block 7 contracts, one ends of the first connecting block 6 and the second connecting block 16, which are far away from the sealed door 13, are respectively and are fixedly provided with a second connecting rod 9 and a first connecting rod 3 The bottoms of the first connecting rod 3 and the second connecting rod 9 are fixedly connected with a third connecting rod 24, the lower ends of the left sides of the first connecting rod 3 and the second connecting rod 9 are fixedly connected with a fixed rod 14, the middle parts of the right ends of the second connecting rod 9 and the first connecting rod 3 are respectively provided with a second guide groove 17, the middle part of the second guide groove 17 is provided with 2 slide rails 19, one end of each slide rail 19 is fixedly connected with the right end of the inner wall of the airtight door 13, the other end of each slide rail 9 is respectively fixedly connected with the middle parts of the right sides of the first connecting rod 3 and the second connecting rod 9, the top of each slide rail 19 is slidably connected with a slide block 18, each slide block 18 is fixedly connected with a third connecting block 20, the right end of each third connecting block 20 is fixedly connected with a lock head 15, the middle part of the left end of each third connecting block 20 is fixedly connected with the third connecting rod 24, a second handle 8 is pulled, so that the lock head 15 is driven to move leftwards until the lock head is completely separated from the lock groove 4, open airtight door 13, let go up second handle 8, drive dead lever 14 through reset spring 11's motion and reset tapered end 15, make tapered end 15 be located the locked groove 4 in, pin airtight door 13, simple mechanical component makes it when breaking down, only need simple change repair can, reduced the work load of maintaining the maintenance, brought the convenience for maintainer's work.

When the locking mechanism is used, the locking hole 21 is rotated, the second handle 8 is pulled, the fixing rod 14 is moved downwards, the third connecting rod 24 is driven to move downwards, the locking head 15 is driven to be separated from the locking groove 4 through the downward movement of the third connecting block 20, the sealed door 13 is opened, the second handle 8 is loosened, and the reset spring 11 drives the fixing rod 14 to reset, so that the locking head 15 is positioned in the locking groove 4, and the sealed door 13 is closed.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a blocked mechanical system for protection airtight door, includes airtight door (13) and airtight door frame (5), locked groove (4) have been seted up to the left end of airtight door frame (5), the bottom of airtight door (13) and top both ends respectively movable mounting have second handle (8) and the first in command (1), its characterized in that: first guide way (12) have been seted up to the left end of airtight door (13) inner wall, the bottom fixed mounting of first guide way (12) has guide bolt (10), the inner chamber of first guide way (12) is provided with reset spring (11), reset spring (11) cover is established at the left end of dead lever (14), second handle (8) and first handle (1) are close to the one end fixed mounting of airtight door (13) and are protected pad (2), lockhole (21) have been seted up at the middle part of second handle (8), spout (22) have all been seted up at the bottom and the top of airtight door (13) inner wall, spout (22) respectively with first connecting block (6) and second connecting block (16) sliding connection, the back fixed mounting of first connecting block (6) and second connecting block (16) has sheave (23), the left end and the right-hand member both ends swing joint of second connecting block (16) have fixture block (7), one end difference fixed mounting that airtight door (13) was kept away from in first connecting block (6) and second connecting block (16) has second connecting rod (9) and head rod (3), second guide way (17) have all been seted up at the middle part of second connecting rod (9) and head rod (3) right-hand member, the middle part of second guide way (17) is provided with slide rail (19), the top and slider (18) sliding connection of slide rail (19), slider (18) and third connecting block (20) fixed connection, the right-hand member fixedly connected with tapered end (15) of second connecting block (16), the middle part fixedly connected with third connecting rod (24) of third connecting block (20) left end.

2. The locking mechanism for a protective door as claimed in claim 1, wherein: the bottom of the guide bolt (10) penetrates through the inner wall of the first guide groove (12), and the bottom of the guide bolt (10) and the bottom end of the fixing rod (14) are located at the same horizontal position.

3. The locking mechanism for a protective door as claimed in claim 1, wherein: the width of reset spring (11) equals with the height at first guide way (12) inner wall top and bottom both ends, the right-hand member of reset spring (11) and the right-hand member fixed connection of first guide way (12) inner wall.

4. The locking mechanism for a protective door as claimed in claim 1, wherein: the left end of the fixed rod (14) penetrates through the first guide groove (12) and is movably connected with the return spring (11), and the right end of the fixed rod (14) is fixedly connected with the third connecting rod (24).

5. The locking mechanism for a protective door as claimed in claim 1, wherein: the bottom of the first connecting rod (3) and the bottom of the second connecting rod (9) are fixedly connected with a third connecting rod (24), and the lower ends of the left sides of the first connecting rod (3) and the second connecting rod (9) are fixedly connected with a fixing rod (14).

6. The locking mechanism for a protective door as claimed in claim 1, wherein: the quantity of slide rail (19) has 2, the right-hand member fixed connection of the one end and airtight door (13) inner wall of slide rail (19), the other end respectively with first connecting rod (3) and second connecting rod (9) middle part fixed connection on right side.

7. The locking mechanism for a protective door as claimed in claim 1, wherein: the lock groove (4) is rectangular, and the lock groove (4) is matched with the lock head (15).