Elastic connector of metal lockset

Abstract

The utility model relates to the technical field of metal locksets, in particular to an elastic connector of a metal lockset, which comprises a base, a limiting mechanism is welded on the surface of the right side of the base, a spring bolt mechanism is slidably connected in the limiting mechanism, a lock catch seat is arranged on the right side of the limiting mechanism, and a bolt is inserted in the lock catch seat. The spring bolt mechanism comprises a fixed spring bolt, an auxiliary plate welded to the right end of the fixed spring bolt and two connecting columns welded to the left side of the upper surface of the fixed spring bolt, a movable spring bolt is arranged on the surface of the front side of the fixed spring bolt, and a plurality of connecting holes allowing the connecting columns to be connected in an inserted mode are formed in the side surface of the movable spring bolt. A connecting block is welded to the left end of the movable spring bolt. When the lock is installed and the distance between the base and the lock catch base is large, the spring bolt mechanism can be prolonged by adjusting the spring bolt mechanism, so that the lock can be normally used, and the clamping block can be taken down during adjustment to prevent the clamping block from blocking the movement of the spring bolt mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of metal locks, in particular to a retractable connector of a metal lock. Background Art

[0002] In the prior art, there are many types of locks, such as buckle locks, bolt locks, chain locks, etc., and locks have been widely used in people's lives, bringing convenience to people's lives. However, most common locks use small round rods as force-bearing bodies with small force-bearing surfaces. Over time, the gap increases and the round rod deforms, causing the door to not close tightly, or a slight force will cause the round rod to separate from the lock seat, causing the door to open, causing unnecessary losses to people.

[0003] The utility model patent with authorization announcement number CN213597719U discloses a latch lock with a thrust function. The utility model includes a base, a lock tongue, a movable groove and a lock catch seat. The base is fixed on the door body, the lock tongue is a long metal strip structure with folded ends, the lock tongue passes through the movable groove, the lock catch seat is fixed on the door frame, and a latch is provided in the lock catch seat to prevent the lock tongue from rebounding. The long lock tongue increases the force-bearing area of ​​the lock tongue, making the lock more impact-resistant, extending the service life of the lock, and being able to adapt to more severe environments. It has stronger adaptability, simple structure, and is easy to use.

[0004] Although the above utility model can increase the impact resistance of the lock, in the actual installation and use process, due to the different installation positions and the different distances between the door and the door frame, the length of the lock tongue of the lock may not be long enough. In addition, during use, if the length of the lock tongue is barely long enough, it will exert a large pressure on the spring at the left end of the lock tongue, which will reduce the service life of the entire device. In view of this, we propose a retractable connector for metal locks. Utility Model Content

[0005] The utility model provides a retractable connector for a metal lock to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A retractable connector for a metal lock comprises a base, a limiting mechanism is welded on the right surface of the base, a locking tongue mechanism is slidably connected in the limiting mechanism, a lock seat is arranged on the right side of the limiting mechanism, and a latch is inserted in the lock seat;

[0008] The tongue mechanism includes a fixed tongue, an auxiliary plate welded to the right end of the fixed tongue, and two connecting columns welded to the left side of the upper surface of the fixed tongue. A movable tongue is provided on the front surface of the fixed tongue. A plurality of connecting holes for inserting and connecting the connecting columns are formed on the side surface of the movable tongue, and a connecting block is welded to the left end of the movable tongue.

[0009] As a preferred technical solution, a limiting hole is formed at the left end of the upper surface of the base, a clamping groove is formed at the left end of the middle position of the front surface of the base, a clamping block is clamped in the clamping groove, a limiting rod is inserted into the limiting hole, an auxiliary rod is welded to the top end of the limiting rod, and a spring is connected to the right end of the clamping block.

[0010] As a preferred technical solution, the limiting mechanism includes a limiting base, two connecting plates fixedly installed on the upper and lower sides of the upper surface of the limiting base by bolts, and a limiting block welded between the two connecting plates. A sliding groove is formed in the limiting block.

[0011] As a preferred technical solution, the bolt is in an L-shaped structure, and a rubber sleeve is wrapped on the outer surface of the bolt.

[0012] As a preferred technical solution, a through hole with the same size and position as the limiting hole is formed on the upper surface of the clamping block, and the right end of the spring is welded to the left side surface of the connecting block.

[0013] As a preferred technical solution, the lower surface of the fixed tongue is closely attached to the lower side surface of the sliding groove, and the upper surface of the connecting column is closely attached to the upper side surface of the sliding groove.

[0014] As a preferred technical solution, the length of the base in the horizontal direction is greater than the length of the movable tongue, and the length of the fixed tongue is greater than twice the length of the limiting block.

[0015] As a preferred technical solution, the width of the auxiliary plate is greater than the diameter of the bolt, and the auxiliary rod is perpendicular to the limiting rod.

[0016] Compared with the prior art, the beneficial effects of the present utility model are:

[0017] 1. When the distance between the base and the lock buckle seat is large after the lock is installed, the tongue mechanism can be adjusted to extend the tongue mechanism so that the lock can be used normally.

[0018] 2. When adjusting, the clamping block can be removed to prevent the clamping block from blocking the movement of the tongue mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0020] Figure 2 Structural schematic diagram of the base mechanism in the present utility model;

[0021] Figure 3 Structural schematic diagram of the limiting mechanism in the present utility model;

[0022] Figure 4 Structural schematic diagram of the locking tongue mechanism in the present utility model.

[0023] The meanings of each label in the figure are as follows:

[0024] 1. Base; 11. Limiting hole; 12. Card slot; 13. Auxiliary rod; 14. Limiting rod; 15. Card block; 16. Spring; 2. Limiting mechanism; 21. Limiting base; 22. Connecting plate; 23. Limiting block; 24. Sliding slot; 3. Locking tongue mechanism; 31. Fixed locking tongue; 32. Auxiliary plate; 33. Connecting hole; 34. Connecting column; 35. Movable locking tongue; 36. Connecting block; 4. Lock buckle seat; 5. Plug pin. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying 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 in 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.

[0026] Please refer to Figures 1-4 , this embodiment provides a technical solution:

[0027] A releasable connector for a metal lock includes a base 1. A limiting mechanism 2 is welded to the right surface of the base 1. A locking tongue mechanism 3 is slidably connected in the limiting mechanism 2. A lock buckle seat 4 is arranged on the right side of the limiting mechanism 2. A plug pin 5 is inserted into the lock buckle seat 4. The locking tongue mechanism 3 includes a fixed locking tongue 31, an auxiliary plate 32 welded to the right end of the fixed locking tongue 31, and two connecting columns 34 welded to the left side of the upper surface of the fixed locking tongue 31. A movable locking tongue 35 is arranged on the front surface of the fixed locking tongue 31. A plurality of connecting holes 33 for inserting and connecting the connecting columns 34 are formed on the side surface of the movable locking tongue 35. A connecting block 36 is welded to the left end of the movable locking tongue 35. Through the above mechanism, the length of the locking tongue mechanism 3 can be conveniently adjusted.

[0028] Furthermore, a limiting hole 11 is opened at the left end of the upper surface of the base 1. A card slot 12 is opened at the left end of the middle position of the front surface of the base 1. A card block 15 is clamped in the card slot 12. A limiting rod 14 is inserted into the limiting hole 11. An auxiliary rod 13 is welded to the top end of the limiting rod 14. A spring 16 is connected to the right end of the card block 15. The locking tongue mechanism 3 is pulled by the spring 16 to fix the plug pin 5.

[0029] Furthermore, the limiting mechanism 2 includes a limiting base 21, two connecting plates 22 fixedly installed on the upper and lower sides of the upper surface of the limiting base 21 by bolts, and a limiting block 23 welded between the two connecting plates 22. A sliding groove 24 is formed in the limiting block 23, and the locking tongue mechanism 3 is slidably installed in the sliding groove 24.

[0030] In this embodiment, the bolt 5 has an L-shaped structure, and a rubber sleeve is wrapped around the outer surface of the bolt 5 to increase the friction generated by the contact surface contacting the outside.

[0031] In this embodiment, a through hole with the same size and position as the limiting hole 11 is formed on the upper surface of the clamping block 15. The right end of the spring 16 is welded to the left side surface of the connecting block 36, and the clamping block 15 can be fixed in the clamping groove 12 through the limiting rod 14.

[0032] In this embodiment, the lower surface of the fixed locking tongue 31 is closely attached to the lower side surface of the sliding groove 24, and the upper surface of the connecting column 34 is closely attached to the upper side surface of the sliding groove 24 to prevent the locking tongue mechanism 3 from shaking back and forth inside the sliding groove 24.

[0033] In this embodiment, the length of the base 1 in the horizontal direction is greater than the length of the movable locking tongue 35, and the length of the fixed locking tongue 31 is greater than twice the length of the limiting block 23 to ensure that the movable locking tongue 35 can be pushed out from the left end of the sliding groove 24.

[0034] In this embodiment, the width of the auxiliary plate 32 is greater than the diameter of the bolt 5, and the auxiliary rod 13 is perpendicular to the limiting rod 14. The auxiliary rod 13 prevents the limiting rod 14 from falling through the limiting hole 11.

[0035] It should be noted that the structure and working principle of the spring 16 involved in this embodiment are well known to those skilled in the art and will not be elaborated here. The structure and working principle of the lock seat 4 involved in this embodiment are already disclosed technologies in the prior art and will not be elaborated here.

[0036] During the specific use of the adjustable connector of the metal lock in this embodiment, after the base 1 and the lock seat 4 are respectively installed at two positions of the door and the door frame, when the locking tongue mechanism 3 needs to be adjusted, the bolt is removed, and the whole locking tongue mechanism 3 is moved to the left until the whole movable locking tongue 35 completely moves out of the area of the limiting block 23. Then the movable locking tongue 35 is moved forward until the connecting column 34 disengages from the connecting hole 33. Subsequently, the position of the movable locking tongue 35 can be adjusted according to the actual use length, and then the connecting column 34 is inserted into a new connecting hole 33 again, which can change the overall length of the locking tongue mechanism 3, thereby realizing the adjustment of the locking tongue mechanism 3. And the tension received by the spring 16 can be adjusted according to the length of the locking tongue mechanism 3, so as to adjust the tightness of the spring and ensure that the spring 16 is in a suitable length range to extend the service life of the spring as much as possible.

[0037] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A retractable connector for a metal lock, comprising a base (1), characterized in that: A limiting mechanism (2) is welded on the right surface of the base (1), a locking tongue mechanism (3) is slidably connected inside the limiting mechanism (2), a locking seat (4) is arranged on the right side of the limiting mechanism (2), and a latch pin (5) is inserted into the locking seat (4); The locking tongue mechanism (3) comprises a fixed locking tongue (31), an auxiliary plate (32) welded to the right end of the fixed locking tongue (31), and two connecting columns (34) welded to the left side of the upper surface of the fixed locking tongue (31); a movable locking tongue (35) is arranged on the front side surface of the fixed locking tongue (31); a plurality of connecting holes (33) for plugging and connecting the connecting columns (34) are arranged on the side surface of the movable locking tongue (35); and a connecting block (36) is welded to the left end of the movable locking tongue (35).

2. The retractable connector of a metal lock as claimed in claim 1, characterized in that: A limiting hole (11) is provided at the left end of the upper surface of the base (1); a clamping groove (12) is provided at the left end of the middle position of the front surface of the base (1); a clamping block (15) is clamped in the clamping groove (12); a limiting rod (14) is inserted in the limiting hole (11); an auxiliary rod (13) is welded to the top end of the limiting rod (14); and a spring (16) is connected to the right end of the clamping block (15).

3. The retractable connector of a metal lock as claimed in claim 2, characterized in that: The limiting mechanism (2) comprises a limiting base (21), two connecting plates (22) fixedly mounted on the upper and lower sides of the upper surface of the limiting base (21) by bolts, and a limiting block (23) welded between the two connecting plates (22), wherein a sliding groove (24) is provided in the limiting block (23).

4. The retractable connector for a metal lock as claimed in claim 1, characterized in that: The latch pin (5) is in an L-shaped structure, and the outer surface of the latch pin (5) is wrapped with a rubber sleeve.

5. The retractable connector for a metal lock as claimed in claim 3, characterized in that: The upper surface of the clamping block (15) is provided with a through hole whose size and position are consistent with the limiting hole (11), and the right end of the spring (16) is welded to the left surface of the connecting block (36).

6. The retractable connector for a metal lock as claimed in claim 3, characterized in that: The lower surface of the fixed locking tongue (31) is in close contact with the lower surface of the sliding groove (24), and the upper surface of the connecting column (34) is in close contact with the upper surface of the sliding groove (24).

7. The retractable connector for a metal lock as claimed in claim 3, characterized in that: The horizontal length of the base (1) is greater than the length of the movable locking tongue (35), and the length of the fixed locking tongue (31) is greater than twice the length of the limiting block (23).

8. The retractable connector of a metal lock as claimed in claim 3, characterized in that: The width of the auxiliary plate (32) is greater than the diameter of the latch pin (5), and the auxiliary rod (13) and the limiting rod (14) are perpendicular to each other.

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