CN216380930U

CN216380930U - Positioning structure of door lock connecting rod of civil air defense door

Info

Publication number: CN216380930U
Application number: CN202122062554.2U
Authority: CN
Inventors: 毛鹏飞; 郑杰; 颜灵刚; 柴永丰
Original assignee: Shanghai Zhongxing Protection Technology Co ltd
Current assignee: Shanghai Zhongxing Protection Technology Co ltd
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2022-04-26
Anticipated expiration: 2031-08-30

Abstract

The utility model discloses a positioning structure of a door lock connecting rod of a civil air defense door, which is arranged on the civil air defense door and comprises a door lock connecting rod and a positioning assembly, wherein the door lock connecting rod is provided with a positioning groove; when the door lock shaft is unlocked, the positioning groove is clamped and assembled with the positioning end of the positioning pin, so that the door lock connecting rod is fixed; the locating component comprises a locating rack and an adjusting rack, the locating rack is installed on the civil air defense door, the adjusting rack is installed on the locating rack, a locating pin is installed on the adjusting rack in an axially sliding mode, one end, provided with a locating end, of the locating pin penetrates through a locating rack plate of the locating rack and then is assembled with a locating groove in a clamping mode, and the locating rack plate is attached to the end face of the locking connecting rod. The utility model uses the positioning pin and the positioning groove multi-locking connecting rod for temporary locking, has simple structure, can reduce the production cost and improve the production efficiency; the later maintenance is very convenient, and the necessary maintenance cost is reduced; and the operation is simple in the practical application process, and the process is simple and convenient in the production process.

Description

Positioning structure of door lock connecting rod of civil air defense door

Technical Field

The utility model relates to a civil air defense door, in particular to a positioning structure of a door lock connecting rod of the civil air defense door.

Background

The positioning structure on the traditional civil air defense door leaf adopts the magnetic attraction to fix the door lock connecting rod to keep the door lock connecting rod at a preset position, thereby achieving the positioning effect of the door lock connecting rod. The specific working principle is that a magnet fixing device which is processed and assembled in advance is welded at a preset position of the civil air defense door leaf, a permanent magnet and a magnetic conduction plate are installed in the magnet fixing device, then an iron block with a good magnetic conduction effect is welded and processed on a connecting rod of the civil air defense door leaf, when the civil air defense door leaf is opened, a door lock connecting rod swings to a certain position and contacts with the magnetic conduction plate on the magnet fixing device, so that the magnetic conduction plate generates adsorption force on the iron block, the iron block on the connecting rod is adsorbed and fixed through magnetic force, and the effect of fixing the door lock connecting rod is achieved. The magnetic adsorption mode can lead to untimely or pause of the door lock when the adsorption force is large, and lead to automatic separation due to the gravity action generated by the door lock when the adsorption force is small. Further, the attraction force of the magnet loses its original attraction function with the aging of the magnet over time, and therefore, the magnet needs to be periodically maintained and replaced. Meanwhile, the purchasing cost of the magnet is relatively high, and later maintenance is inconvenient.

The applicant designs a positioning structure of a civil air defense door lock connecting rod, which adopts the matching of a positioning pin and a positioning groove to realize the zero-time fixation of the door lock connecting rod.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a positioning structure for a door lock link of a civil air defense door

In order to achieve the purpose, the utility model provides a positioning structure of a door lock connecting rod of a civil air defense door, which is arranged on the civil air defense door and comprises a door lock connecting rod and a positioning assembly, wherein the door lock connecting rod is provided with a positioning groove; when the door lock shaft is unlocked, the positioning groove is clamped and assembled with the positioning end of the positioning pin, so that the door lock connecting rod is fixed;

the locating component comprises a locating rack and an adjusting rack, the locating rack is installed on the civil air defense door, the adjusting rack is installed on the locating rack, a locating pin is installed on the adjusting rack in an axially sliding mode, one end, provided with a locating end, of the locating pin penetrates through a locating rack plate of the locating rack and then is assembled with a locating groove in a clamping mode, and the locating rack plate is attached to the end face of the locking connecting rod.

Preferably, the adjusting frame is respectively provided with a first adjusting transverse plate, a second adjusting transverse plate, a third adjusting transverse plate, a first adjusting vertical plate, a second adjusting vertical plate and an adjusting slider frame, the first adjusting transverse plate, the second adjusting transverse plate and the third adjusting transverse plate are respectively installed on the second adjusting vertical plate, two ends of the second adjusting vertical plate are respectively installed on the second adjusting transverse plate and the third adjusting transverse plate, and the adjusting slider frame is installed on the second adjusting transverse plate;

the positioning pin penetrates through the adjusting cylinder and can be assembled with the adjusting cylinder in an axial sliding mode, the adjusting cylinder is assembled with the second adjusting transverse plate in a screwing mode through threads, and a push ring is arranged at one end, close to the positioning end, of the adjusting cylinder; the positioning pin is characterized in that one end, close to the positioning end, of the positioning pin is provided with a spring ring, a second spring is sleeved on a part, located between the push ring and the spring ring, of the positioning pin, and the second spring is used for applying elastic force, pushed to the positioning groove, to the positioning pin.

Preferably, the push ring and the spring ring are axially slidably mounted in the protection barrel, and the protection barrel is assembled with the first adjusting transverse plate and the second adjusting transverse plate respectively.

Preferably, the adjusting cylinder is sleeved with a first gear at one end far away from the push ring, the first gear is in meshing transmission with a second gear, the second gear is sleeved on a resistance adjusting shaft, and the resistance adjusting shaft is assembled with the second adjusting transverse plate and the third adjusting transverse plate in a circumferential rotation mode and in an axial-movement-incapable assembling mode.

Preferably, one end of the resistance adjusting shaft penetrates through the third adjusting transverse plate and then is assembled with one end of the first handle.

Preferably, the length of the second gear in the axial direction thereof is larger than the maximum displacement amount of the first gear moving in the axial direction thereof.

Preferably, a pin groove is formed in the positioning pin, an inclined pin groove inclined surface is formed at the top of the pin groove, the unlocking inclined block penetrates through the pin groove, an unlocking inclined surface is formed in the unlocking inclined block, and the unlocking inclined surface is attached to the pin groove inclined surface; one end of the unlocking inclined block is assembled with one end of the unlocking slide rod, the other end of the unlocking slide rod is sleeved with a first spring and then penetrates through the second adjusting vertical plate to be assembled with the second adjusting vertical plate in an axially sliding mode, and the first spring is used for applying elastic force for pushing the unlocking inclined block to move away from the second adjusting vertical plate to the unlocking inclined block.

Preferably, the unlocking inclined block is far away from one end of the unlocking slide rod and is provided with a side pushing pin, the side pushing pin is tightly attached to a side pushing inclined plane, the side pushing inclined plane is arranged on a side pushing sliding block, a thread block is further arranged on the side pushing sliding block, the thread block is sleeved on a screw rod and is assembled with the screw rod in a screwing mode through threads, the screw rod is assembled with the adjusting sliding block frame and the third adjusting transverse plate in a circumferential rotating mode and cannot be assembled in an axial moving mode, and the outer wall of the side pushing sliding block is attached to the inner wall of the first adjusting vertical plate and can be assembled in a sliding mode.

Preferably, one end of the screw rod penetrates through the third adjusting transverse plate and then is assembled with one end of the second handle.

The utility model has the beneficial effects that:

the utility model uses the positioning pin and the positioning groove multi-locking connecting rod for temporary locking, has simple structure, can reduce the production cost and improve the production efficiency; the later maintenance is very convenient, and the necessary maintenance cost is reduced; and the operation is simple in the practical application process, and the process is simple and convenient in the production process. In addition, the design can keep good stability in a quite long period, and is more reliable than the original mode of adopting magnetic attraction locking.

Drawings

Fig. 1 is a schematic structural view of a civil air defense door.

Fig. 2 is a schematic structural view of the civil air defense door.

Fig. 3 is a schematic structural view of the positioning structure.

Fig. 4 is a schematic structural view of the positioning structure.

FIG. 5 is a cross-sectional view of the locating assembly at a central plane of the locating pin axis.

Fig. 6 is a schematic structural view of the positioning assembly.

Fig. 7 is a schematic structural view of the positioning assembly.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1 to 7, the positioning structure of the present embodiment, which is mounted on the civil air defense door 100, includes a door lock shaft 310, a door lock link 320, and a positioning assembly 200, wherein one end of the door lock shaft 310 is hinged to one end of the door lock link 320, and the door lock shaft 310 is used for locking the civil air defense door 100. The door lock connecting rod 320 is provided with a positioning groove 321; when the door lock shaft 310 is unlocked, the positioning groove 321 is engaged with the positioning end 434 of the positioning pin 430, so as to fix the door lock link 320, thereby preventing the door lock shaft 310 from moving and affecting the subsequent closing and locking of the man-protection door.

The positioning assembly 200 comprises a positioning frame 210 and an adjusting frame 220, the positioning frame 210 is installed on the civil air defense door 100, the adjusting frame 220 is installed on the positioning frame 210, a positioning pin 430 is axially and slidably installed on the adjusting frame 220, one end, provided with a positioning end 434, of the positioning pin 430 penetrates through a positioning frame plate 211 of the positioning frame 210 and then is in clamping assembly with a positioning groove 321, the positioning frame plate 211 is attached to the end face of the locking connecting rod 320, and therefore stable swinging of the locking connecting rod 320 is guaranteed. In the prior art, the positioning frame 210 is a magnet fixing device for mounting a magnet, the positioning frame plate 211 is a magnetic conductive plate, and an iron block is mounted at a position of the locking link 320 corresponding to the magnetic conductive plate.

The adjusting frame 220 is provided with a first adjusting transverse plate 221, a second adjusting transverse plate 222, a third adjusting transverse plate 223, a first adjusting vertical plate 224, a second adjusting vertical plate 225 and an adjusting slider frame 226, the first adjusting transverse plate 221, the second adjusting transverse plate 222 and the third adjusting transverse plate 223 are respectively installed on the second adjusting vertical plate 225, two ends of the second adjusting vertical plate 225 are respectively installed on the second adjusting transverse plate 222 and the third adjusting transverse plate 223, and the adjusting slider frame 226 is installed on the second adjusting transverse plate 222. The positioning pin 430 penetrates through the adjusting cylinder 420 and is assembled with the adjusting cylinder in an axially sliding manner, the adjusting cylinder 420 is assembled with the second adjusting transverse plate 222 in a screwing manner through threads, and a push ring 421 is arranged at one end, close to the positioning end 434, of the adjusting cylinder 420; a spring ring 433 is arranged at one end of the positioning pin 430 close to the positioning end 434, a second spring 620 is sleeved on a portion of the positioning pin 430 between the push ring 421 and the spring ring 433, and the second spring 620 is used for applying an elastic force to the positioning pin 430 to push the positioning slot 321, so that the positioning end 434 and the positioning slot 321 are kept in clamping assembly.

Preferably, the push ring 421 and the spring ring 433 are both axially slidably installed in the protection cylinder 410, and the protection cylinder 410 is assembled with the first adjustment horizontal plate 221 and the second adjustment horizontal plate 222, respectively. The protection barrel 410 is mainly used for preventing foreign matters from entering the second spring and influencing the movement of the positioning pin.

Preferably, the adjusting cylinder 420 is sleeved with a first gear 510 at an end thereof away from the push ring 421, the first gear 510 is in meshing transmission with a second gear 520, the second gear 520 is sleeved on the resistance adjusting shaft 460, the resistance adjusting shaft 460 is respectively assembled with the second adjusting transverse plate 222 and the third adjusting transverse plate 223 in a circumferential rotation manner and in a non-axial movement manner, one end of the resistance adjusting shaft 460 penetrates through the third adjusting transverse plate 223 and then is assembled with one end of the first handle 810, when in use, the resistance adjusting shaft 460 is driven by the first handle to rotate circumferentially, so as to drive the adjusting cylinder 420 to rotate circumferentially, when the adjusting cylinder 420 rotates, the adjusting cylinder 420 moves axially through the screw action, so as to adjust the compression force applied by the push ring 421 to the second spring 620, so as to adjust the resistance of the axial movement of the positioning pin 430, so that the positioning pin 430 applies a proper damping to the positioning slot, so that the positioning slot can be gradually pushed out from the positioning end 434 when the swinging force of the locking link 320 is large enough, the unlocking of the locking connecting rod is realized, so that the normal use of the locking connecting rod is not influenced. More preferably, the length of the second gear 520 in the axial direction thereof is greater than the maximum displacement of the first gear along the axial direction thereof, so as to ensure that the first gear and the second gear always keep meshed transmission.

Preferably, since the second spring provides a power for the positioning pin to clamp the locking link 320, after a long time of use, due to aging, corrosion, etc., the positioning pin may not slide axially or the resistance when sliding axially may increase greatly, thereby affecting the normal locking of the locking link 320. This embodiment is modified as follows:

the positioning pin 430 is provided with a pin groove 431, the top of the pin groove 431 is an inclined pin groove inclined surface 432, the unlocking inclined block 710 penetrates through the pin groove 431, the unlocking inclined block 710 is provided with an unlocking inclined surface 711, the unlocking inclined surface 711 is attached to the pin groove inclined surface 432, and when the unlocking inclined block 710 moves, the unlocking inclined surface 711 and the pin groove inclined surface 432 are matched to drive the positioning pin 430 to axially move, so that the positioning pin 430 is driven to exit from the positioning groove. One end of the unlocking inclined block 710 is assembled with one end of the unlocking sliding rod 440, the other end of the unlocking sliding rod 440 is sleeved with a first spring 610, penetrates through the second adjusting vertical plate 225 and can be axially assembled with the second adjusting vertical plate in a sliding mode, and the first spring 610 is used for applying elastic force to the unlocking inclined block 710 to push the unlocking inclined block 710 to move away from the second adjusting vertical plate 225. This design prevents the unlocking ramp 710 from being mistaken to cause the detent pin to be mistaken, thereby causing the detent pin to weaken or disappear the locking function of the locking link. The unlocking swash block 710 is attached to the adjustment block frame 226 so that the unlocking swash block 710 can smoothly slide along the top surface of the adjustment block frame 226.

One end of the unlocking inclined block 710, which is far away from the unlocking sliding rod 440, is provided with a side push pin 470, the side push pin 470 is attached to a side push inclined surface 721, the side push inclined surface 721 is arranged on a side push sliding block 720, the side push sliding block 720 is further provided with a thread block 722, the thread block 722 is sleeved on the screw 460 and is assembled with the screw 460 in a threaded and screwed manner, the screw 460 is respectively assembled with the adjusting sliding block frame 226 and the third adjusting transverse plate 223 in a circumferential rotating manner and cannot be assembled in an axial moving manner, and one end of the screw 460 penetrates through the third adjusting transverse plate 223 and is assembled with one end of the second handle 820. The outer wall of the side-push sliding block 720 is attached to the inner wall of the first adjusting vertical plate 224 and slidably assembled. When the positioning pin unlocking device is used, the screw 460 can be driven to rotate circumferentially by the second handle 820, the screw 460 drives the side pushing slide block 720 to move axially along the screw 460, and therefore the side pushing slide block 720 drives the unlocking inclined block 710 to move by the side pushing inclined surface 721, and the positioning pin is unlocked.

The utility model is not described in detail, but is well known to those skilled in the art.

The foregoing detailed description of the preferred embodiments of the utility model has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims

1. The utility model provides a location structure of people's air defense door lock connecting rod, characterized by: the positioning device is arranged on a civil air defense door and comprises a door lock connecting rod and a positioning assembly, wherein the door lock connecting rod is provided with a positioning groove; when the door lock shaft is unlocked, the positioning groove is clamped and assembled with the positioning end of the positioning pin, so that the door lock connecting rod is fixed;

2. The positioning structure according to claim 1, wherein: the adjusting frame is respectively provided with a first adjusting transverse plate, a second adjusting transverse plate, a third adjusting transverse plate, a first adjusting vertical plate, a second adjusting vertical plate and an adjusting slider frame, the first adjusting transverse plate, the second adjusting transverse plate and the third adjusting transverse plate are respectively arranged on the second adjusting vertical plate, two ends of the second adjusting vertical plate are respectively arranged on the second adjusting transverse plate and the third adjusting transverse plate, and the adjusting slider frame is arranged on the second adjusting transverse plate;

3. The positioning structure according to claim 2, wherein: the push ring and the spring ring can be axially and slidably arranged in the protective barrel, and the protective barrel is respectively assembled with the first adjusting transverse plate and the second adjusting transverse plate.

4. The positioning structure according to claim 2, wherein: one end of the adjusting cylinder, which is far away from the push ring, is sleeved with a first gear, the first gear is in meshing transmission with a second gear, the second gear is sleeved on a resistance adjusting shaft, and the resistance adjusting shaft is assembled with a second adjusting transverse plate and a third adjusting transverse plate in a circumferential rotation mode and in an axial-movement-incapable mode respectively.

5. The positioning structure according to claim 4, wherein: one end of the resistance adjusting shaft penetrates through the third adjusting transverse plate and then is assembled with one end of the first handle.

6. The positioning structure according to claim 4, wherein: the length of the second gear in the axial direction thereof is larger than the maximum displacement amount of the first gear moving in the axial direction thereof.

7. The positioning structure according to claim 2, wherein: a pin groove is formed in the positioning pin, an inclined pin groove inclined surface is formed in the top of the pin groove, the unlocking inclined block penetrates through the pin groove, an unlocking inclined surface is formed in the unlocking inclined block, and the unlocking inclined surface is attached to the pin groove inclined surface; one end of the unlocking inclined block is assembled with one end of the unlocking slide rod, the other end of the unlocking slide rod is sleeved with a first spring and then penetrates through the second adjusting vertical plate to be assembled with the second adjusting vertical plate in an axially sliding mode, and the first spring is used for applying elastic force for pushing the unlocking inclined block to move away from the second adjusting vertical plate to the unlocking inclined block.

8. The positioning structure according to claim 7, wherein: the unlocking slide bar is characterized in that one end, far away from the unlocking slide bar, of the unlocking inclined block is provided with a side pushing pin, the side pushing pin is tightly attached to a side pushing inclined plane, the side pushing inclined plane is arranged on a side pushing slide block, a thread block is further arranged on the side pushing slide block, the thread block is sleeved on a screw rod and assembled with the screw rod in a threaded screwing mode, the screw rod is assembled with an adjusting slide block frame and a third adjusting transverse plate in a circumferential rotating mode and assembled in an axially-immovable mode, and the outer wall of the side pushing slide block is attached to the inner wall of a first adjusting vertical plate and assembled in a sliding mode.

9. The positioning structure according to claim 8, wherein: one end of the screw rod penetrates through the third adjusting transverse plate and then is assembled with one end of the second handle.