Civil air defense door lock shaft mounting structure
By adopting an annular slot and gear drive design in the lock shaft of the civil defense door, the problem of lock shaft installation error is solved, and the effect of simplifying installation and improving locking firmness is achieved.
Patent Information
- Application Number
- CN202422671170.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-01
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-11-01
AI Technical Summary
Errors are prone to occur during the installation of existing civil air defense door lock shafts, making it difficult to accurately insert the lock pin into the keyhole, affecting the locking effect of the civil air defense door.
A ring-shaped slot replaces the traditional lock hole, and the main locking rod is driven by a rotary wheel and gear, which drives the secondary locking rod through gear engagement to achieve locking, simplifying the installation process and improving locking firmness.
It reduces the difficulty of installation, improves the operating efficiency and the locking firmness of the civil air defense door, and a single person can complete the locking operation.
Smart Images

Figure CN223410608U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a civil air defense door lock shaft installation structure, in particular to a civil air defense door lock shaft installation structure, belonging to the technical field of civil air defense door lock shafts. Background Art
[0002] The civil defense door lock shaft is a locking structure used when the civil defense door needs to be closed. It can effectively lock and fix the civil defense door. It is generally a mechanical design with a simple and reliable structure.
[0003] Existing civil defense doors generally have a lock shaft structure with a lock pin inside the civil defense door leaf, and a lock hole corresponding to the lock pin is provided on the civil defense door frame. The installation of the lock shaft generally requires precise positioning to ensure that the lock pin can be accurately inserted into the lock hole.
[0004] During the actual installation process, errors and inconveniences are prone to occur in the installation of the lock shaft, making it difficult to accurately connect the lock pin with the lock hole, resulting in the civil air defense door being difficult to lock or even unable to lock, which seriously affects the installation and use of the civil air defense door. Utility Model Content
[0005] The purpose of the present utility model is to provide a civil air defense door lock shaft installation structure in order to solve the above problems.
[0006] The utility model achieves the above-mentioned object through the following technical solutions: a civil air defense door lock shaft installation structure, comprising a locking member, a door plate is arranged on the inner side of the locking member, a lock shaft is arranged on the inner side of the door plate, the door plate comprises an outer clamping plate and a fixed plate, the fixed plate is fixedly arranged on the inner side of the outer clamping plate, and a movable groove is arranged on the inner side of the fixed plate;
[0007] The lock shaft includes a rotating wheel and a gear shaft. The gear shaft is inserted into the inner side of the rotating wheel. The outer side of the gear shaft is sleeved with a bearing and a gear.
[0008] Preferably, the door panel further includes a turntable shaft jack and a gear shaft jack, and the turntable shaft jack is distributed on the upper and lower sides of the gear shaft jack.
[0009] Preferably, the locking member comprises a shell and a slot, and the slot is opened on the inner side of the shell.
[0010] Preferably, the gear is meshed and connected with a main locking rod, rod teeth are provided on the top of the main locking rod, a locking block is fixedly connected to the right end of the main locking rod, a fixed sleeve is movably sleeved on the outside of the main locking rod, a fixed wing plate is fixedly provided on the outside of the fixed sleeve, and the left end of the main locking rod is fixedly connected to a movable connecting block.
[0011] Preferably, the lock shaft further comprises a rotating rod, a clamping piece is provided at the lower end of the rotating rod, the clamping piece is movably plugged into the outer side of the movable connecting block, and a turntable is sleeved on the top end of the rotating rod.
[0012] Preferably, a turntable shaft is provided on the outside of the turntable, a clamping rod is provided on the outside of the turntable, a movable shaft is inserted into the inside of the clamping rod, a secondary locking rod is sleeved on the outside of the movable shaft, and a locking rod sleeve is sleeved on the other end of the secondary locking rod.
[0013] Preferably, the bearing is inserted into the inner side of the gear shaft socket.
[0014] Preferably, the turntable shaft is inserted into the inner side of the turntable shaft insertion hole.
[0015] Preferably, the locking block is inserted into the inner side of the slot.
[0016] Preferably, the secondary locking rod is inserted into the inner side of the slot.
[0017] The utility model discloses a civil air defense door lock shaft installation structure, which has the following beneficial effects: a locking piece is provided, and a ring-shaped slot is opened on the inner side of the locking piece, and the ring-shaped slot replaces the traditional lock hole design, which is convenient for installation, avoids the tedious operation of accurately positioning the lock pin and the lock hole, reduces labor intensity, and improves work efficiency; a lock shaft unit is provided, including a rotating wheel and a main locking rod, and the rotating wheel drives the gear, and the gear drives the main locking rod, so that the main locking rod drives the auxiliary locking rod to lock at the same time, and a single person can complete the operation, and the operation is convenient and fast, and the design of the main and auxiliary locking rods improves the firmness of the civil air defense door when locked. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the structure of the utility model;
[0019] Figure 2 This is a schematic diagram of the door panel structure of the utility model;
[0020] Figure 3 This is a schematic diagram of the locking structure of the utility model;
[0021] Figure 4 This is a schematic diagram of the shaft locking structure of the utility model.
[0022] In the figure: 1. Door panel; 11. Outer splint; 12. Fixed plate; 13. Movable slot; 14. Turntable shaft socket; 15. Gear shaft socket; 2. Locking piece; 21. Housing; 22. Slot; 3. Lock shaft; 31. Turntable; 32. Gear shaft; 321. Bearing; 322. Gear; 33. Main locking rod; 331. Rod teeth; 332. Lock block; 333. Fixed sliding sleeve; 334. Fixed wing plate; 335. Moving connecting block; 34. Rotating rod; 341. Clamping piece; 35. Turntable; 351. Turntable shaft; 352. Clamping rod; 353. Movable shaft; 36. Secondary locking rod; 37. Lock rod sleeve. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on 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.
[0024] The embodiment of the utility model discloses a civil air defense door lock shaft installation structure.
[0025] According to the attached Figure 1-4 As shown, it includes a door panel 1, a locking member 2 and a lock shaft 3. The locking member 2 is located on the outside of the door panel 1, and the lock shaft 3 is located on the inside of the door panel 1. The door panel 1 includes an outer splint 11 and a fixed plate 12. The fixed plate 12 is fixedly arranged on the inside of the outer splint 11, and a movable groove 13 is provided on the inside of the fixed plate 12.
[0026] The lock shaft 3 includes a rotating wheel 31 and a gear shaft 32 . The gear shaft 32 is inserted into the inner side of the rotating wheel 31 . A bearing 321 is sleeved on the outer side of the gear shaft 32 . A gear 322 is sleeved on the outer side of the gear shaft 32 .
[0027] A locking piece 2 is provided, and a ring-shaped slot 22 is opened on the inner side of the locking piece 2. The ring-shaped slot 22 replaces the traditional lock hole design, which is convenient for installation and avoids the tedious operation of accurately positioning the lock pin and the lock hole, reduces labor intensity and improves work efficiency; a lock shaft 3 is provided, including a rotating wheel 31 and a main locking rod 33. The rotating wheel 31 drives the gear 322, and the gear 322 drives the main locking rod 33, so that the main locking rod 33 drives the auxiliary locking rod 34 to lock at the same time. A single person can complete the operation, and the operation is convenient and fast. In addition, the design of the main and auxiliary locking rods improves the firmness of the civil defense door when it is locked.
[0028] Furthermore, the door panel 1 further includes a turntable shaft jack 14 and a gear shaft jack 15 , and the turntable shaft jack 14 is distributed on the upper and lower sides of the gear shaft jack 15 .
[0029] Furthermore, the locking member 2 includes a housing 21 and a slot 22 , and the slot 22 is provided on the inner side of the housing 21 .
[0030] Furthermore, the gear 322 is meshedly connected to the main locking rod 33, a rod tooth 331 is provided on the top of the main locking rod 33, a locking block 332 is fixedly connected to the right end of the main locking rod 33, a fixed sleeve 333 is movably sleeved on the outside of the main locking rod 33, a fixed wing plate 334 is fixedly provided on the outside of the fixed sleeve 333, and a movable connecting block 335 is fixedly connected to the left end of the main locking rod 33.
[0031] It should be emphasized that the lock shaft 3 also includes a rotating rod 34 , a clamping member 341 is provided at the lower end of the rotating rod 34 , the clamping member 341 is movably inserted into the outer side of the movable connecting block 335 , and a turntable 35 is sleeved on the top end of the rotating rod 34 .
[0032] It should be emphasized that a turntable shaft 351 is provided on the outside of the turntable 35, a clamping rod 352 is provided on the outside of the turntable 35, a movable shaft 353 is inserted into the inside of the clamping rod 352, a secondary locking rod 36 is sleeved on the outside of the movable shaft 353, and a locking rod sleeve 37 is sleeved on the other end of the secondary locking rod 36.
[0033] It should be emphasized that the bearing 321 is inserted into the inner side of the gear shaft insertion hole 15 .
[0034] It is particularly important to emphasize that the turntable shaft 351 is inserted into the inner side of the turntable shaft insertion hole 14 .
[0035] It is particularly important to emphasize that the locking block 332 is inserted into the inner side of the slot 22 .
[0036] It is particularly important to emphasize that the secondary locking rod 36 is inserted into the inner side of the slot 22 .
[0037] Working principle: First, rotate the rotating wheel 31, which drives the gear shaft 32 to drive the gear 322. The gear engages with the main locking rod 33. The gear 322 drives the main locking rod 33 to slide to the right, driving the locking block 333 to insert into the lock slot 22.
[0038] At the same time, the movable connecting block 335 provided at the left end of the main locking rod 33 drives the rotating rod 34 plugged thereon to rotate. Due to the lever principle, the rotating rod 34 can easily drive the rotating disk 351 sleeved on the upper end of the rotating rod 34 to rotate;
[0039] At this time, the turntable 35 drives the secondary locking rod 36 connected thereto, and the secondary locking rod 36 and the locking block 333 are inserted into the slot 22 at the same time, completing the locking operation of the civil defense door lock shaft.
[0040] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.
Claims
1. A civil air defense door lock shaft installation structure, comprising a locking member (2), a door panel (1) being provided inside the locking member (2), and a lock shaft (3) being provided inside the door panel (1), characterized in that: The door panel (1) comprises an outer clamping plate (11) and a fixed plate (12), wherein the fixed plate (12) is fixedly arranged on the inner side of the outer clamping plate (11), and a movable groove (13) is arranged on the inner side of the fixed plate (12); The lock shaft (3) comprises a rotating wheel (31) and a gear shaft (32); the gear shaft (32) is inserted into the inner side of the rotating wheel (31); a bearing (321) is sleeved on the outer side of the gear shaft (32); and a gear (322) is sleeved on the outer side of the gear shaft (32).
2. The civil air defense door lock shaft installation structure according to claim 1, characterized in that: The door panel (1) further comprises a turntable shaft jack (14) and a gear shaft jack (15), wherein the turntable shaft jack (14) is distributed on the upper and lower sides of the gear shaft jack (15).
3. The civil air defense door lock shaft installation structure according to claim 1, characterized in that: The locking member (2) comprises a shell (21) and a slot (22), wherein the slot (22) is provided on the inner side of the shell (21).
4. The civil air defense door lock shaft installation structure according to claim 1, characterized in that: The gear (322) is meshedly connected with a main locking rod (33), a rod tooth (331) is provided on the top of the main locking rod (33), a locking block (332) is fixedly connected to the right end of the main locking rod (33), a fixed sliding sleeve (333) is movably sleeved on the outside of the main locking rod (33), a fixed wing plate (334) is fixedly provided on the outside of the fixed sliding sleeve (333), and a movable connecting block (335) is fixedly connected to the left end of the main locking rod (33).
5. The civil air defense door lock shaft installation structure according to claim 4, characterized in that: The locking shaft (3) further comprises a rotating rod (34), a clamping member (341) being provided at the lower end of the rotating rod (34), the clamping member (341) being movably plugged into the outer side of the movable connecting block (335), and a rotating disk (35) being sleeved at the top end of the rotating rod (34).
6. The civil air defense door lock shaft installation structure according to claim 5, characterized in that: A turntable shaft (351) is provided on the outside of the turntable (35), a clamping rod (352) is provided on the outside of the turntable (35), a movable shaft (353) is inserted into the inside of the clamping rod (352), a secondary locking rod (36) is sleeved on the outside of the movable shaft (353), and a locking rod sleeve (37) is sleeved on the other end of the secondary locking rod (36).
7. The civil air defense door lock shaft installation structure according to claim 1, characterized in that: The bearing (321) is inserted into the inner side of the gear shaft insertion hole (15).
8. The civil air defense door lock shaft installation structure according to claim 6, characterized in that: The turntable shaft (351) is inserted into the inner side of the turntable shaft insertion hole (14).
9. The civil air defense door lock shaft installation structure according to claim 4, characterized in that: The locking block (332) is inserted into the inner side of the slot (22).
10. The civil air defense door lock shaft installation structure according to claim 6, characterized in that: The secondary locking rod (36) is inserted into the inner side of the slot (22).