Adjustable fishtail lock device

By introducing an internal threaded bolt and an adjusting screw into the fishtail lock device, the distance between the lock body and the housing and the position of the lock tongue can be adjusted, solving the problem that existing fishtail locks cannot adapt to different door panel thicknesses and improving applicability.

CN223964291UActive Publication Date: 2026-03-03YANCHENG CITY OSKA HARDWARE TECH CO LTD
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Patent Information

Application Number
CN202520523817.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2026-03-03
Estimated Expiration
2035-03-25

AI Technical Summary

Technical Problem

The existing fishtail lock has its outer shell and lock body fixed together, and the length of the bolt is fixed, making it impossible to adjust the position of the lock body and the length of the bolt according to the thickness of the door panel, which reduces its applicability.

Method used

An adjustable fishtail lock device was designed. By installing an internal threaded bolt and an adjusting screw on the housing, the distance between the lock body and the housing can be adjusted. The position of the lock tongue can be adjusted by the first adjusting screw and the movable piece, thereby increasing the stability of the lock body.

Benefits of technology

It enables flexible adjustment of the lock body and bolt, making it suitable for door panels of different thicknesses and improving the applicability of the fishtail lock.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an adjustable fishtail lock device. According to the adjustable fishtail lock device, four internal thread bolts are fixedly connected to the positions, close to the two sides, of one face of a shell, one end of each internal thread bolt is rotationally connected with a second adjusting screw rod, and the outer surface of each second adjusting screw rod is in threaded connection with a mounting block; the adjacent faces of the four installation blocks are fixedly connected with a lock body shell, the back face of the inner wall of the lock body shell is rotationally connected with a limiting frame, a lock cylinder is installed on the front face of the limiting frame, a lock body is installed on the front face of the inner wall of the lock body shell, a handle is installed on the front face of the lock body through an adjusting assembly, and a rotating disc is installed on the back face of the lock body. And a mounting frame is mounted on the outer surface of the rotating disc. According to the adjustable fishtail lock device provided by the utility model, through the design, the position of the lock body and the extending length of the spring bolt can be quickly adjusted according to requirements, so that the fishtail lock can be suitable for door plates with different thicknesses, and the applicability is improved.
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Description

Technical Field

[0001] This utility model relates to the field of adjustable fishtail lock technology, and in particular to an adjustable fishtail lock device. Background Technology

[0002] As a type of lock, the fishtail lock is not only practical but also decorative. Fishtail locks are commonly used on cabinet doors, box hoops, drawers, and other places. Their unique fishtail shape is not only beautiful but also has a certain anti-theft function. The design inspiration for the fishtail lock comes from fish-shaped locks.

[0003] A fishtail lock mainly consists of a lock body, lock cylinder, key, outer shell, and other accessories. The lock body is the core part of the fishtail lock and is usually made of metal, which has high strength and corrosion resistance. The lock body contains mechanical structures such as lock cylinder and springs, which are used to control the opening and closing of the lock.

[0004] The existing fishtail lock shell and lock body are fixed together, and the length of the bolt is also fixed. The position of the lock body and the length of the bolt cannot be adjusted according to the thickness of the door panel to be installed, which reduces the applicability of the fishtail lock.

[0005] Therefore, it is necessary to provide an adjustable fishtail lock device to solve the above-mentioned technical problems. Utility Model Content

[0006] This utility model provides an adjustable fishtail lock device, which solves the problem that the fixed outer shell and lock body and the fixed length of the lock tongue cannot adjust the position of the lock body and the length of the lock tongue according to the thickness of the door panel, thus reducing the applicability of the fishtail lock.

[0007] To solve the above-mentioned technical problems, the adjustable fishtail lock device provided by this utility model includes: a housing;

[0008] Four internally threaded bolts are fixedly connected to one side of the housing near both sides. One end of each of the four internally threaded bolts is rotatably connected to a second adjusting screw. The outer surface of each second adjusting screw is threaded with a mounting block. The adjacent sides of the four mounting blocks are fixedly connected to a lock body shell. A limit frame is rotatably connected to the back of the inner wall of the lock body shell. A lock cylinder is installed on the front of the limit frame. A lock body is installed on the front of the inner wall of the lock body shell. A handle is installed on the front of the lock body through an adjusting component. A rotating disk is installed on the back of the lock body. A mounting bracket is installed on the outer surface of the rotating disk.

[0009] A fixed frame is mounted on one end of a mounting bracket by mounting bolts. A first adjusting screw is threaded to the bottom of the fixed frame. A movable plate is rotatably connected to the top of the first adjusting screw. A locking tongue is fixedly connected to the top of the movable plate. A stabilizing rod is installed at the bottom of the movable plate.

[0010] A limit block is set between the lock body and the limit frame to limit the rotation angle of the lock body. The internal structure of the lock body is the same as that of the existing fishtail lock, and the lock cylinder is also the internal structure of the existing fishtail lock.

[0011] Preferably, four connecting bolts are fixedly connected to one side of the housing, and an installation port is provided on the outer surface of one side of the housing;

[0012] Connecting bolts are used to easily fix the housing in the corresponding position with bolts. Refer to the mounting port location for details. Figure 2 .

[0013] Preferably, a protective component is installed on one side of the housing, the protective component includes a mounting frame, and fixing bolts are threaded to both sides of the mounting frame;

[0014] The mounting frame is installed in the mounting opening and secured with fixing bolts.

[0015] Preferably, a protective cover is rotatably connected to one side of the mounting frame, and magnets are installed on both the protective cover and the top of the mounting frame;

[0016] The two magnets attract each other, and the bottom of the protective cover and the mounting frame are connected by a hinge.

[0017] Preferably, the adjusting component includes a rotating buckle, one side of which is fitted with a fixing bolt, and the outer surface of the fixing bolt is provided with a snap-fit.

[0018] The rotating latch is used to allow the lock body and lock body shell to rotate and connect.

[0019] Preferably, a movable rod is slidably connected to the outer surface of the fixing bolt, and one end of the movable rod is rotatably connected to a handle via a movable buckle;

[0020] One end of the movable rod has an opening corresponding to the fixing bolt. A crossbar passes through the locking opening in the opening at one end of the movable rod, which is connected by the extension and retraction of the fixing bolt.

[0021] Compared with related technologies, the adjustable fishtail lock device provided by this utility model has the following beneficial effects:

[0022] This invention provides an adjustable fishtail lock device. To accommodate door panels of varying thicknesses, four internally threaded bolts are installed on one side of the housing. The lock body is then mounted on one side of the housing via a second adjusting screw and a mounting block. Rotation of the second adjusting screw adjusts the distance between the lock body and the housing, allowing the internal structure of the lock body to adapt to different door panel thicknesses. The fishtail lock's latch is mounted on a mounting bracket via a first adjusting screw and a movable piece. Rotation of the first adjusting screw adjusts the latch's position, and a stabilizing rod enhances stability during latch adjustment. This design allows for quick adjustment of the lock body's position and the latch's extension length as needed, making the fishtail lock suitable for door panels of different thicknesses and increasing its versatility. Attached Figure Description

[0023] Figure 1 A schematic diagram of a preferred embodiment of the adjustable fishtail lock device provided by this utility model;

[0024] Figure 2 A structural schematic diagram of the shell is provided for this utility model;

[0025] Figure 3 A structural schematic diagram of the connecting block is provided for this utility model;

[0026] Figure 4 Provided for this utility model Figure 2 An enlarged view of point A shown;

[0027] Figure 5 Provided for this utility model Figure 3 A magnified view of point B shown.

[0028] The following are the labeling elements in the diagram: 1. Housing, 2. Internal threaded bolt, 3. Protective component, 301. Mounting frame, 302. Fixing bolt, 303. Magnet, 304. Protective cover, 4. Lock tongue, 5. Mounting bracket, 6. Rotating disc, 7. Movable piece, 8. Lock body shell, 9. Connecting bolt, 10. Limiting frame, 11. Lock cylinder, 12. Mounting port, 13. Lock body, 14. Handle, 15. Adjustment component, 151. Rotating buckle, 152. Fixing bolt, 153. Bayonet, 154. Movable buckle, 155. Movable rod, 16. Fixing bracket, 17. First adjusting screw, 18. Stabilizing rod, 19. Second adjusting screw, 20. Mounting block, 21. Mounting bolt. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0030] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 ,in, Figure 1 A schematic diagram of a preferred embodiment of the adjustable fishtail lock device provided by this utility model; Figure 2 A structural schematic diagram of the shell is provided for this utility model; Figure 3 This invention provides a schematic diagram of the lock cylinder structure; Figure 4 Provided for this utility model Figure 2 An enlarged view of point A shown; Figure 5 Provided for this utility model Figure 3 The enlarged view at point B is shown. The adjustable fishtail lock device includes: housing 1;

[0031] Four internally threaded bolts 2 are fixedly connected to one side of the housing 1 near both sides. One end of each of the four internally threaded bolts 2 is rotatably connected to a second adjusting screw 19. The outer surface of each second adjusting screw 19 is threadedly connected to a mounting block 20. The adjacent sides of the four mounting blocks 20 are fixedly connected to a lock body shell 8. The back of the inner wall of the lock body shell 8 is rotatably connected to a limit frame 10. The front of the limit frame 10 is equipped with a lock cylinder 11. The front of the inner wall of the lock body shell 8 is equipped with a lock body 13. The front of the lock body 13 is equipped with a handle 14 through an adjusting component 15. The back of the lock body 13 is equipped with a rotating disk 6. The outer surface of the rotating disk 6 is equipped with a mounting bracket 5.

[0032] A fixing frame 16 is installed at one end of the mounting frame 5 by mounting bolts 21. The bottom of the fixing frame 16 is threadedly connected to a first adjusting screw 17. The top of the first adjusting screw 17 is rotatably connected to a movable piece 7. The top of the movable piece 7 is fixedly connected to a locking tongue 4. The bottom of the movable piece 7 is installed with a stabilizing rod 18.

[0033] A limit block is provided between the lock body 13 and the limit frame 10 to limit the rotation angle of the lock body 13. The internal structure of the lock body 13 is the same as that of the existing fish tail lock. The lock cylinder 11 is also the internal structure of the existing fish tail lock. The stabilizing rod 18 passes through the fixing frame 16 to increase the stability of the movement of the movable piece 7. The first adjusting screw 17 is threaded through the fixing frame 16.

[0034] Four connecting bolts 9 are fixedly connected to one side of the housing 1, and an installation port 12 is opened on the outer surface of one side of the housing 1.

[0035] Connecting bolt 9 is used to easily fix housing 1 in the corresponding position with bolts. The position of mounting port 12 is referenced. Figure 2 .

[0036] A protective component 3 is installed on one side of the housing 1. The protective component 3 includes a mounting frame 301, and fixing bolts 302 are threadedly connected to both sides of the mounting frame 301.

[0037] The mounting frame 301 is installed in the mounting port 12 and fixed by the fixing bolt 302. A hole is provided on one side of the inner wall of the mounting port 12 for threaded connection with the fixing bolt 302.

[0038] A protective cover 304 is rotatably connected to one side of the mounting frame 301, and magnets 303 are installed on the top of both the protective cover 304 and the mounting frame 301.

[0039] Two magnets 303 attract each other, and the bottom of the protective cover 304 and the mounting frame 301 are connected by a hinge.

[0040] The adjustment assembly 15 includes a rotating buckle 151, and a fixing bolt 152 is installed on one side of the rotating buckle 151. The outer surface of the fixing bolt 152 is provided with a bayonet 153.

[0041] The rotating buckle 151 is used to rotate the lock body 13 and the lock body shell 8 so that the lock body 13 can be rotated by the handle 14.

[0042] The outer surface of the fixing bolt 152 is slidably connected to a movable rod 155, and one end of the movable rod 155 is rotatably connected to a handle 14 via a movable buckle 154;

[0043] One end of the movable rod 155 has an opening corresponding to the fixing bolt 152. A crossbar passes through the latch 153 in the opening at one end of the movable rod 155. With the extension and retraction of the fixing bolt 152, the distance between the housing 1 and the lock body 8 can be adjusted while the position of the handle 14 remains unchanged.

[0044] The working principle of the adjustable fishtail lock device provided by this utility model is as follows:

[0045] Four internal threaded bolts 2 are installed on one side of the housing 1. Then, the lock body shell 8 is installed on one side of the housing 1 through the second adjusting screw 19 and the mounting block 20. By rotating the second adjusting screw 19, the distance between the lock body shell 8 and the housing 1 can be adjusted, so that the internal structure of the lock body shell 8 can be adapted to door panels of different thicknesses. The latch 4 of the fishtail lock is installed on the mounting bracket 5 through the first adjusting screw 17 and the movable piece 7. By rotating the first adjusting screw 17, the latch 4 is adjusted. During the adjustment of the latch 4, the stabilizing rod 18 can increase the stability. In actual use, first adjust the distance between the housing 1 and the lock body shell 8 according to the thickness of the door panel so that the latch 4 can be located in the middle of the door panel opening. Then, only the extension length of the latch 4 needs to be adjusted according to the depth of the door frame opening. After the adjustment is completed, the fishtail lock can be installed in the corresponding position.

[0046] Compared with related technologies, the adjustable fishtail lock device provided by this utility model has the following beneficial effects:

[0047] To accommodate door panels of varying thicknesses, the fishtail lock is designed to work with different thicknesses of door panels. Four internally threaded bolts 2 are installed on one side of the housing 1. The lock body shell 8 is then mounted on one side of the housing 1 via a second adjusting screw 19 and a mounting block 20. Rotating the second adjusting screw 19 adjusts the distance between the lock body shell 8 and the housing 1, allowing the internal structure of the lock body shell 8 to adapt to door panels of different thicknesses. The fishtail lock's latch 4 is mounted on the mounting bracket 5 via a first adjusting screw 17 and a movable piece 7. Rotating the first adjusting screw 17 adjusts the position of the latch 4. During the adjustment process, a stabilizing rod 18 enhances stability. This design allows for quick adjustment of the lock body's position and the latch 4's extension length, enabling the fishtail lock to work with door panels of varying thicknesses and increasing its versatility.

[0048] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An adjustable fishtail lock device, characterized in that, include: case; Four internally threaded bolts are fixedly connected to one side of the housing near both sides. One end of each of the four internally threaded bolts is rotatably connected to a second adjusting screw. The outer surface of each second adjusting screw is threaded with a mounting block. The adjacent sides of the four mounting blocks are fixedly connected to a lock body shell. A limit frame is rotatably connected to the back of the inner wall of the lock body shell. A lock cylinder is installed on the front of the limit frame. A lock body is installed on the front of the inner wall of the lock body shell. A handle is installed on the front of the lock body through an adjusting component. A rotating disk is installed on the back of the lock body. A mounting bracket is installed on the outer surface of the rotating disk. A fixed frame is mounted on one end of a mounting bracket by mounting bolts. A first adjusting screw is threaded to the bottom of the fixed frame. A movable plate is rotatably connected to the top of the first adjusting screw. A locking tongue is fixedly connected to the top of the movable plate. A stabilizing rod is installed at the bottom of the movable plate.

2. The adjustable fishtail lock device according to claim 1, characterized in that, Four connecting bolts are fixedly connected to one side of the housing, and an installation port is opened on the outer surface of one side of the housing.

3. The adjustable fishtail lock device according to claim 1, characterized in that, A protective component is installed on one side of the housing. The protective component includes a mounting frame, and both sides of the mounting frame are threaded with fixing bolts.

4. The adjustable fishtail lock device according to claim 3, characterized in that, A protective cover is rotatably connected to one side of the mounting frame, and magnets are installed on both the protective cover and the top of the mounting frame.

5. The adjustable fishtail lock device according to claim 1, characterized in that, The adjustment assembly includes a rotating buckle, one side of which is fitted with a fixing bolt, and the outer surface of the fixing bolt is provided with a locking slot.

6. The adjustable fishtail lock device according to claim 5, characterized in that, A movable rod is slidably connected to the outer surface of the fixing bolt, and one end of the movable rod is rotatably connected to a handle via a movable buckle.