A dark room emergency lock body
By designing an emergency lock body in the dark room that includes a lock shell, panel, lock tongue and limit slot, the problem of strong concealment but urgent lock opening is solved, and the effect of preventing the door from being pushed open under normal circumstances and convenient lock opening in emergency situations is achieved.
Patent Information
- Application Number
- CN202421071056.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-16
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-05-16
AI Technical Summary
In a dark room, how to design a door lock under the premise of strong concealment can not only prevent the door from being pushed open under conventional force, but also facilitate unlocking in emergencies.
A dark room emergency lock body is designed, adopting a lock shell and panel structure. The lock tongue consists of a bottom plate, a deformation plate and a connecting part, and has components such as elastic deformation grooves, limit grooves and tension springs. Through the cooperation of the limiting block and the tensioning spring, the locking tongue is locked under normal circumstances. When it is necessary to impact vigorously, the elastic deformation groove supports the limiting block to leave the limiting groove, and the tensioning spring quickly retracts the locking tongue to achieve unlocking.
It realizes the function of convenient emergency lock unlocking in a dark room door lock with strong concealment. At the same time, it is simple in structure and can be reused to meet the needs of concealment and emergency.
Smart Images
Figure CN222701715U_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the field of emergency locks and relates to a darkroom emergency lock body. Technical Background
[0002] The lock body is used in a dark room for hiding when encountering danger, and has concealment and emergency functions. In order to increase concealment, there is no handle on the outside of the door, nor is there a keyhole or other device that may expose risks.
[0003] Therefore, what we need to solve is how to make an emergency lock that can function as a door lock while being concealed and cannot be pushed open by normal force but can be easily unlocked in an emergency. Summary of the invention
[0004] In view of the above problems, the present invention provides a darkroom emergency lock body, which has the advantages of simple structure, high concealment, reusability and convenient unlocking.
[0005] The object of the present invention is achieved in that:
[0006] A darkroom emergency lock body comprises a lock shell and a panel, a lock tongue which can partially extend out of the panel is slidably arranged in the lock shell, a lock tongue hole for the lock tongue to extend out is formed on the panel, the lock tongue comprises a bottom plate, a deformation plate and a connecting portion, the connecting portion is arranged at the front end of the lock tongue, the bottom plate and the deformation plate are connected by the connecting portion, an elastic deformation groove is formed between the bottom plate and the deformation plate, the front end of the elastic deformation groove is arranged outside the panel, the inner and outer inner walls of the lock tongue hole are against the inner and outer sides of the lock tongue, a limiting groove is formed on the lock shell, and a limiting block is formed on the deformation plate relative to the limiting groove, a tension spring is arranged in the lock shell, the tension spring is connected to the lock tongue and always gives the lock tongue a force to retract the lock shell;
[0007] The lock housing is also provided with a push block for pushing the lock tongue out of the lock housing. The push block is rotatably arranged in the lock housing and is connected with a handle, which is arranged on the inner side of the lock body.
[0008] With the above arrangement, when the darkroom door is locked, the limit block is set in the limit groove and against the lock tongue to prevent the lock tongue from retracting. Since there is no handle and lock hole on the outside of the lock body, it is highly concealed. When the user hits the door lock position with great force, the front end of the elastic deformation groove serves as a support point, and the connection between the deformation plate and the panel serves as a force point to push the limit block into the lock shell to leave the limit of the limit groove, and then the tension spring quickly pulls the lock tongue back into the lock shell to unlock. After entering the door, the user can move the handle only set on the inside of the lock body to quickly push the lock tongue out of the lock shell, so that the limit block re-enters the limit groove.
[0009] The utility model is further configured as follows: half of the distance from the front end of the lock tongue to the front end of the panel < the distance from the front end of the elastic deformation groove to the front end of the panel < one third of the distance from the front end of the panel to the front end of the limit block.
[0010] The utility model is further configured as follows: the width of the elastic deformation groove is greater than the width of the deformation plate.
[0011] The utility model is further configured as follows: the bottom plate, the deformed plate and the connecting portion form a "U" shape.
[0012] The utility model is further configured as follows: a tension spring groove is formed on the lock tongue, a tension spring fixing block is formed on the lock shell, and two ends of the tension spring are respectively fixed to the front end of the tension spring groove and the tension spring fixing block.
[0013] By setting the tension spring groove, the tension spring is set in the tension spring groove, which can not only play a guiding and stabilizing role, but also reasonably save space and shorten the size of the lock body.
[0014] The utility model is further configured as follows: the shift block extends a pushing end to one side.
[0015] The utility model is further configured as follows: a reset end is formed on the shift block, a reset spring is connected to the reset end, and the reset spring always gives a force to push the push end on the shift block away from the lock tongue.
[0016] The utility model is further configured as follows: the lock tongue extends guide blocks to the upper and lower sides, and the two guide blocks are gap-matched with the upper and lower inner walls of the lock shell.
[0017] The setting of the guide block can make the movement of the lock tongue more stable.
[0018] Compared with the prior art, the present invention has the following outstanding and beneficial technical effects: when the darkroom door is locked, the limit block is arranged in the limit groove and against the lock tongue to prevent the lock tongue from retracting. Since there is no handle and lock hole and other devices on the outside of the lock body, the concealment is extremely strong. Only when the user knows the position of the door lock and is hit by a strong impact from the outside, the front end of the elastic deformation groove is used as a support point, and the connection between the deformation plate and the panel is used as a force point to push the limit block into the lock shell to leave the limit of the limit groove, and then the tension spring quickly pulls the lock tongue back into the lock shell to achieve unlocking; and since the handle is arranged on the inner side of the lock body, after the user enters the door, the handle can be moved to quickly push the lock tongue out of the lock shell, so that the limit block re-enters the limit groove. Therefore, it has the advantages of simple structure, high concealment, reusability, and convenient unlocking. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0020] Figure 1 It is a structural schematic diagram of the utility model.
[0021] Figure 2 This is the internal structure diagram of the utility model.
[0022] Figure 3 It is one of the structural schematic diagrams of the lock tongue.
[0023] Figure 4 This is the second schematic diagram of the lock tongue mechanism.
[0024] 1-lock housing; 2-panel; 3-lock tongue; 31-bottom plate; 32-deformation plate; 33-connecting part; 34-elastic deformation groove; 4-lock tongue hole; 7-limiting groove; 8-limiting block; 9-tension spring; 10-shift block; 11-tension spring groove; 12-tension spring fixing block; 13-pushing end; 14-reset end; 15-reset spring; 16-guide block. DETAILED DESCRIPTION
[0025] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.
[0026] A darkroom emergency lock body comprises a lock shell 1 and a panel 2, a lock tongue 3 which can partially extend out of the panel 2 is slidably arranged in the lock shell 1, a lock tongue hole 4 for the lock tongue 3 to extend out is formed on the panel 2, the lock tongue 3 comprises a bottom plate 31, a deformation plate 32 and a connecting portion 33, the connecting portion 33 is arranged at the front end of the lock tongue 3, the bottom plate 31 and the deformation plate 32 are connected by the connecting portion 33, an elastic deformation groove 34 is formed between the bottom plate 31 and the deformation plate 32, the front end of the elastic deformation groove 34 is arranged outside the panel 2, the inner and outer inner walls of the lock tongue hole are against the inner and outer sides of the lock tongue, a limiting groove 7 is formed on the lock shell, and a limiting block 8 is formed on the deformation plate 32 relative to the limiting groove 7, a tension spring 9 is arranged in the lock shell 1, the tension spring 9 is connected to the lock tongue 3 and always gives the lock tongue 3 a force to retract the lock shell 1;
[0027] The lock housing 1 is also provided with a push block 10 for pushing the lock tongue 3 out of the lock housing. The push block 10 is rotatably arranged in the lock housing 1 and is connected to a handle (not shown). The handle is only arranged on the inner side of the lock body. The side of the lock housing where the limiting groove is arranged is the inner side, and there is no handle on the outer side of the lock body, thereby improving concealment.
[0028] The utility model is further configured as follows: half of the distance from the front end of the lock tongue 4 to the front end of the panel 2 < the distance from the front end of the elastic deformation groove 34 to the front end of the panel 2 < one third of the distance from the front end of the panel 2 to the front end of the limit block 8 .
[0029] The utility model is further configured such that: the width of the elastic deformation groove 34 is greater than the width of the deformation plate 32 .
[0030] The utility model is further configured as follows: the bottom plate 31, the deformed plate 32 and the connecting portion 33 form a "U" shape.
[0031] The utility model is further configured as follows: a tension spring groove 11 is formed on the lock tongue 3, a tension spring fixing block 12 is formed on the lock housing, and two ends of the tension spring 9 are fixedly connected to the front end of the tension spring groove 11 and the tension spring fixing block 23 respectively.
[0032] The utility model is further configured as follows: the shift block 10 extends a push end 13 to one side.
[0033] The utility model is further configured as follows: a reset end 14 is formed on the shift block 10, and a reset spring 15 is connected to the reset end 14. The reset spring 15 always gives a force to the push end of the shift block away from the lock tongue.
[0034] The utility model is further configured as follows: the lock tongue extends guide blocks 16 to the upper and lower sides, and the two guide blocks are gap-matched with the upper and lower inner walls of the lock housing.
[0035] Working principle:
[0036] When the darkroom door is locked, the limit block 8 is arranged in the limit groove 7 and against the lock tongue 3 to prevent the lock tongue 3 from retracting. Since there is no handle and lock hole and other devices on the outside of the lock body, it is highly concealed. Only when the user knows the position of the door lock and is hit by a strong impact from the outside, the front end of the elastic deformation groove 34 is used as a support point, and the connection between the deformation plate 32 and the panel 2 is used as a force point to push the limit block 8 into the lock shell to leave the limit of the limit groove 7, and then the tension spring 9 quickly pulls the lock tongue 3 back into the lock shell 1 to unlock; and since the handle is arranged on the inner side of the lock body, after entering the door, the user can move the handle to let the dial block 10 push the lock tongue out of the lock shell again, so that the limit block 8 re-enters the limit groove 7.
[0037] The invention has the characteristics of simple structure, high concealment, reusability and convenient unlocking.
[0038] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.
Claims
1. A darkroom emergency lock body, comprising a lock shell and a panel, wherein a lock tongue is slidably arranged in the lock shell and can partially extend out of the panel, and a lock tongue hole is formed on the panel for the lock tongue to extend out, characterized in that: The lock tongue comprises a bottom plate, a deformation plate and a connection part, the connection part is arranged at the front end of the lock tongue, the bottom plate and the deformation plate are connected by the connection part, an elastic deformation groove is formed between the bottom plate and the deformation plate, the front end of the elastic deformation groove is arranged outside the panel, the inner and outer inner walls of the lock tongue hole are against the inner and outer sides of the lock tongue, a limiting groove is formed on the lock shell, and a limiting block is formed on the deformation plate relative to the limiting groove, and a tension spring is arranged in the lock shell, the tension spring is connected to the lock tongue and always gives the lock tongue a force to retract the lock shell; The lock housing is also provided with a push block for pushing the lock tongue out of the lock housing. The push block is rotatably arranged in the lock housing and is connected with a handle, which is arranged on the inner side of the lock body.
2. A darkroom emergency lock body according to claim 1, characterized in that: One half of the distance from the front end of the lock tongue to the front end of the panel is less than the distance from the front end of the elastic deformation groove to the front end of the panel and less than one third of the distance from the front end of the panel to the front end of the limiting block.
3. A darkroom emergency lock body according to claim 1 or 2, characterized in that: The width of the elastic deformation groove is greater than the width of the deformation plate.
4. A darkroom emergency lock body according to claim 1, characterized in that: The bottom plate, the deformed plate and the connecting portion form a "U" shape.
5. The darkroom emergency lock body according to claim 1, characterized in that: A tension spring groove is formed on the lock tongue, a tension spring fixing block is formed on the lock housing, and two ends of the tension spring are respectively fixed to the front end of the tension spring groove and the tension spring fixing block.
6. A darkroom emergency lock body according to claim 2, characterized in that: The shift block extends a pushing end toward one side.
7. A darkroom emergency lock body according to claim 6, characterized in that: A reset end is formed on the shift block, and a reset spring is connected to the reset end. The reset spring always gives a force to push the push end on the shift block away from the lock tongue.
8. The darkroom emergency lock body according to claim 1, characterized in that: The lock tongue extends guide blocks to the upper and lower sides, and the two guide blocks are gap-matched with the upper and lower inner walls of the lock shell.