Door catch lock structure convenient and reliable to use

Abstract

The utility model relates to the field of door catch locks, in particular to a door catch lock structure convenient and reliable to use. A connecting piece II; the door catch lock main body comprises a fixed plate and a torsional spring; the door holder lock bolt comprises a lock plate, an adjusting shaft and a bent plate; wherein the bending plate is arranged at the top of the locking plate, and the bending plate is in lap joint with the top of the fixing plate; a lock opening is formed in the bottom of the front end of the lock plate; the adjusting shaft is arranged at the rear end of the lock plate, stable locking force is provided for the lock plate through introduction of the torsion spring, it is ensured that the door can be firmly locked in the closed state, meanwhile, metal friction between the lock plate and the fixing plate is prevented through the friction plate, the safety and reliability of the door catch lock structure are further improved, and through the design of the traction pipe and the steel wire rope, the safety of the door catch lock structure is improved. The door catch lock structure realizes a multi-lock linkage function when a plurality of door catch locks are vertically arranged.

Description

Technical Field

[0001] The utility model relates to the field of door latches, and specifically to a door latch structure that is convenient and reliable to use. Background Art

[0002] In the current field of door latch technology, traditional door latch structures face multiple challenges, mainly reflected in three aspects: operational convenience, locking effect, and structural complexity. These problems jointly restrict the performance improvement of door latch products and the improvement of user experience, and cannot meet the increasing high standards in modern homes and public places.

[0003] First of all, traditional door latches have obvious deficiencies in terms of operational convenience. Due to unreasonable design, users may need to go through complex steps or use improper force when opening and closing the door, which not only increases the operation difficulty, but also prolongs the door opening and closing time and reduces the usage efficiency. This inconvenient operation mode undoubtedly affects the daily experience of users.

[0004] Secondly, the locking effect of traditional door latches is often unsatisfactory. Their locking mechanisms may seem unstable due to design defects or improper material selection, and are prone to looseness or failure when subjected to external impacts. This not only reduces the security of the door, but also may pose a potential threat to the life and property safety of users.

[0005] Finally, the complexity of the structure of traditional door latches is also a major drawback. The complex structure not only increases the manufacturing cost, making the product price high, but also increases the maintenance difficulty, requiring users or maintenance personnel to have relatively high professional skills. This to a certain extent restricts the popularization and promotion of the product and is difficult to meet the needs of the vast number of consumers. Summary of the Invention

[0006] In view of the deficiencies of the prior art, the utility model provides a door latch structure that is convenient and reliable to use. To achieve the above object, the utility model provides the following technical solutions: A door latch structure that is convenient and reliable to use according to the utility model includes the following components:

[0007] Connecting piece one;

[0008] Connecting piece two;

[0009] The door latch main body, and the door latch main body includes a fixing plate and a torsion spring;

[0010] The door latch bolt, and the door latch bolt includes a lock plate, an adjusting shaft, and a bent plate;

[0011] Among them, the bent plate is arranged on the top of the lock plate. The bent plate and the lock plate are of an integral structure, and the bent plate overlaps with the top of the fixed plate; a lock opening is arranged at the bottom of the front end of the lock plate; the adjusting shaft is arranged at the rear end of the lock plate, and the adjusting shaft is welded to the lock plate. An adjusting hole is opened at the rear end of the fixed plate, and the adjusting shaft is rotatably installed in the adjusting hole; the torsion spring is sleeved on the adjusting shaft, and a limit screw is installed at the end of the adjusting shaft for limiting the torsion spring; a bayonet is arranged at the rear end of the bent plate, and one end of the torsion spring is adapted to the bayonet and welded to the bayonet; a support block is arranged at the rear end of the fixed plate, a support opening is arranged on the support block, and the other end of the torsion spring is inserted into the support opening and welded to the support opening;

[0012] The front end of the fixed plate is installed on the side wall of the first connecting member through an inner angle screw; a tenon is installed on the side wall of the second connecting member through a bolt, and the tenon is adapted to the lock opening.

[0013] Preferably, a through hole is opened on the bent plate, a traction pipe is installed on the bent plate, the traction pipe is communicated with the through hole, a screw hole is opened on the side wall of the traction pipe, the traction pipe is used for installing a steel wire rope, and the steel wire rope is limited by arranging a bolt in the screw hole.

[0014] Further preferably, a friction plate is sleeved at the joint of the adjusting shaft and the fixed plate.

[0015] Again preferably, the fixed plate is of a Z-shaped plate structure.

[0016] Preferably, a lifting plate is arranged at the top of the front end of the lock plate, and the lifting plate is of a raised structure.

[0017] Further preferably, a rubber sleeve is sleeved on the lifting plate. Compared with the prior art, the utility model provides a door latch lock structure which is convenient and reliable to use and has the following beneficial effects:

[0018] The convenience is significantly improved: The design of the door latch lock structure fully considers the user experience. Especially through the cooperation of the lifting plate and the rubber sleeve, when the user needs to open the door, the lock plate can be easily lifted, and the door can be quickly opened. This design greatly simplifies the door opening operation and improves the convenience of use.

[0019] Safe and reliable: The introduction of the torsion spring provides a stable locking force for the lock plate to ensure that the door can be firmly locked in the closed state. At the same time, the setting of the friction plate prevents metal friction between the lock plate and the fixed plate, further improving the safety and reliability of the door latch lock structure.

[0020] Multi-lock linkage function: Through the design of the traction tube and steel wire rope, this door latch structure realizes the multi-lock linkage function when multiple door latches are vertically arranged. This function is particularly useful when multiple doors need to be opened simultaneously, improving the usage efficiency and reducing the tediousness of operating each lock individually.

[0021] Stable structure: The fixing plate adopts a Z-shaped plate structure, which not only enhances its strength and stability but also provides more installation points and support surfaces, ensuring the stability of the door latch structure during installation and use.

[0022] Comfortable operation: The design of the rubber sleeve not only increases the friction between the user's hand and the lifting plate, improving the operation convenience, but also provides a more comfortable touch for the user. This humanized design detail reflects the high attention to the user experience.

[0023] In summary, the convenient and reliable door latch structure described in this patent document shows significant beneficial effects in terms of convenience, safety, multi-lock linkage function, structural stability, and operation comfort, and has high practical value and promotion prospects. Description of the drawings

[0024] Figure 1 It is an exploded schematic diagram of the overall structure of the present utility model;

[0025] Figure 2 It is a schematic diagram of the closing effect of the present utility model;

[0026] Figure 3 It is a schematic diagram of the opening effect of the present utility model;

[0027] Figure 4 It is a schematic diagram of the double-linkage usage effect of the present utility model;

[0028] In the figure: 1. First connecting piece; 2. Second connecting piece; 3. Fixing plate; 4. Lock plate; 5. Mortise; 6. Adjusting shaft; 7. Adjusting hole; 8. Torsion spring; 9. Limit screw; 10. Lock opening; 11. Bent plate; 12. Bayonet; 13. Support block; 14. Support opening; 15. Through hole; 16. Traction tube; 17. Lifting plate; 18. Friction plate; 19. Steel wire rope. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0030] Please refer toFigures 1-4 , a door latch lock structure that is convenient and reliable to use in the present utility model, includes the following components:

[0031] Connector 1;

[0032] Connector 2;

[0033] The door latch lock body, the door latch lock body includes a fixing plate 3 and a torsion spring 8;

[0034] The door latch bolt, the door latch bolt includes a lock plate 4, an adjusting shaft 6 and a bending plate 11;

[0035] Wherein, the bending plate 11 is arranged on the top of the lock plate 4, the bending plate 11 and the lock plate 4 are of an integral structure, and the bending plate 11 is lapped with the top of the fixing plate 3; a lock opening 10 is arranged at the bottom of the front end of the lock plate 4; the adjusting shaft 6 is arranged at the rear end of the lock plate 4, and the adjusting shaft 6 is welded to the lock plate 4, an adjusting hole 7 is opened at the rear end of the fixing plate 3, and the adjusting shaft 6 is rotatably installed in the adjusting hole 7; the torsion spring 8 is sleeved on the adjusting shaft 6, and a limit screw 9 is installed at the end of the adjusting shaft 6, and the limit screw 9 is used for limiting the torsion spring 8; a bayonet 12 is arranged at the rear end of the bending plate 11, one end of the torsion spring 8 is adapted to the bayonet 12 and is welded to the bayonet 12; a support block 13 is arranged at the rear end of the fixing plate 3, a support opening 14 is arranged on the support block 13, the other end of the torsion spring 8 is inserted into the support opening 14 and is welded to the support opening 14;

[0036] The front end of the fixing plate 3 is installed on the side wall of the connector 1 through an internal angle screw; a tenon 5 is installed on the side wall of the connector 2 through a bolt, and the tenon 5 is adapted to the lock opening 10.

[0037] Basic working principle

[0038] This door latch lock structure is mainly composed of a connector 1, a connector 2, a door latch lock body and a door latch bolt. The door latch lock body includes a fixing plate 3 and a torsion spring 8, and the door latch bolt includes a lock plate 4, an adjusting shaft 6 and a bending plate 11. When the door is closed, the lock opening 10 on the lock plate 4 cooperates with the tenon 5 on the connector 2 to realize the locking of the door. At this time, the torsion spring 8 is in a compressed state, providing a force for the lock plate 4 in the locking direction. When the door needs to be opened, the lock plate 4 is lifted by the lifting plate 17, so that the lock plate 4 is disengaged from the cooperation with the tenon 5, thereby realizing the opening of the door.

[0039] Working principle of the traction tube 16 and the steel wire rope 19

[0040] Connection between the traction tube 16 and the through hole 15: The through hole 15 opened on the bending plate 11 is connected to the installed traction tube 16 to form a channel for installing and fixing the steel wire rope 19.

[0041] Limitation of the steel wire rope 19: Threaded holes are provided on the side wall of the traction pipe 16. By arranging bolts in these threaded holes, the steel wire rope 19 passing through the traction pipe 16 can be limited to prevent it from loosening or falling off during use.

[0042] Through the design of the traction pipe 16 and the steel wire rope 19, when multiple door buckle lock structures are vertically arranged, the steel wire rope 19 and the traction pipe 16 can be used to realize the series connection of multiple lock plates 4. In this way, when one lock plate 4 is opened, the remaining door buckle lock structures will also be opened simultaneously under the traction of the steel wire rope 19.

[0043] Stabilizing effect of the friction plate 18

[0044] A friction plate 18 is sleeved at the joint where the adjusting shaft 6 is attached to the fixed plate 3 to prevent metal friction between the lock plate 4 and the fixed plate 3.

[0045] Fixed plate 3 with a Z-shaped plate structure

[0046] The fixed plate 3 adopts a Z-shaped plate structure, which can increase the strength and stability of the fixed plate 3, making it not easy to deform or loosen during installation and use. At the same time, the Z-shaped plate structure can also provide more installation points and support surfaces, facilitating connection and fixation with other components.

[0047] Convenience of the lifting plate 17 and the rubber sleeve

[0048] Function of the lifting plate 17: The lifting plate 17 provided at the top of the front end of the lock plate 4 is in a raised structure, facilitating the user to manually lift the lock plate 4 when needed, improving the comfort of lifting the lock plate 4, and realizing the rapid opening of the door.

[0049] Comfort of the rubber sleeve: A rubber sleeve is sleeved on the lifting plate 17, which can increase the friction between the user's hand and the lifting plate 17, improving the convenience and comfort of operation.

[0050] In summary, through ingenious design and innovative technical solutions, the door buckle lock structure realizes the convenient, reliable and safe locking and opening of the door. At the same time, through optimization measures such as adding the friction plate 18, adopting the Z-shaped plate structure, and setting the lifting plate 17 and the rubber sleeve, the stability and use convenience of the door buckle lock structure are further improved.

[0051] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A convenient and reliable door latch lock structure, characterized in that, It includes the following components: Connecting piece one (1); Connecting piece two (2); The door latch body, which includes a fixing plate (3) and a torsion spring (8); The door latch bolt, which includes a lock plate (4), an adjusting shaft (6) and a bending plate (11); Wherein, the bending plate (11) is arranged at the top of the lock plate (4), the bending plate (11) and the lock plate (4) are of an integral structure, and the bending plate (11) overlaps with the top of the fixing plate (3); a lock opening (10) is arranged at the bottom of the front end of the lock plate (4); the adjusting shaft (6) is arranged at the rear end of the lock plate (4), and the adjusting shaft (6) is welded to the lock plate (4), an adjusting hole (7) is opened at the rear end of the fixing plate (3), and the adjusting shaft (6) is rotatably installed in the adjusting hole (7); the torsion spring (8) is sleeved on the adjusting shaft (6), and a limit screw (9) is installed at the end of the adjusting shaft (6), and the limit screw (9) is used to limit the torsion spring (8); a bayonet (12) is arranged at the rear end of the bending plate (11), one end of the torsion spring (8) is adapted to the bayonet (12) and is welded to the bayonet (12); a support block (13) is arranged at the rear end of the fixing plate (3), a support opening (14) is arranged on the support block (13), and the other end of the torsion spring (8) is inserted into the support opening (14) and is welded to the support opening (14); The front end of the fixing plate (3) is installed on the side wall of the connecting piece one (1) through an internal angle screw; a tenon (5) is installed on the side wall of the connecting piece two (2) through a bolt, and the tenon (5) is adapted to the lock opening (10).

2. The structure of a door latch lock that is convenient and reliable to use according to claim 1, characterized in that, A through hole (15) is opened on the bending plate (11), a traction tube (16) is installed on the bending plate (11), the traction tube (16) is communicated with the through hole (15), a screw hole is opened on the side wall of the traction tube (16), the traction tube (16) is used to install a steel wire rope (19), and the steel wire rope (19) is limited by arranging a bolt in the screw hole.

3. A door latch lock structure that is convenient and reliable to use according to claim 2, characterized in that, A friction plate (18) is sleeved at the joint of the adjusting shaft (6) and the fixing plate (3).

4. The structure of a door latch lock that is convenient and reliable to use according to claim 3, characterized in that, The fixing plate (3) is of a Z-shaped plate structure.

5. A convenient and reliable door latch lock structure according to claim 4, characterized in that, A lifting plate (17) is arranged at the top of the front end of the lock plate (4), and the lifting plate (17) is of a tilted-up structure.

6. The structure of a door latch lock that is convenient and reliable to use according to claim 5, characterized in that, A rubber sleeve is sleeved on the lifting plate (17).

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