A connection lock structure

Abstract

The present invention relates to the technical field, and specifically discloses a connecting lock structure for connecting a door with a profile frame provided with a notch, comprising a lock column arranged on a door frame, a cylindrical double-door lock core rotatably arranged in the lock column, a lock buckle fixed in the door frame, and a C-shaped adapter fixed to the circumferential surface of the double-door lock core cylinder; the lock column passes through the lock buckle, and one side of the lock buckle is provided with a pair of gradually approaching convex wings, and at the end of the pair of convex wings, there are wing plates that are parallel to each other and can be extended into the notch of the profile frame, and the end of the wing plate is provided with a wing hook that can hook the inner wall of the notch of the profile frame, and the C-shaped adapter can rotate in the lock groove with the double-door lock core cylinder, and a lock core insert is provided on the outer circumferential surface of the C-shaped adapter, and the lock core insert can be movably inserted into or withdrawn between the two wing plates to make the two wing plates open or close. The present invention has a simple structure, is suitable for profiles of any company, can be universal, is reliable in use, has high installation efficiency, and reduces investment costs.

Description

Technical Field

[0001] The invention relates to the technical field of connecting locks, in particular to a connecting lock structure suitable for connecting a cloth-decorated folding door with a profile frame provided with notches. Background Art

[0002] The existing conventional connecting lock structures are mostly cabinet door locks or connecting locks between ordinary door panels and profile frames, which are not suitable for cloth-decorated folding doors because the door surface of the cloth-decorated folding door is made of cloth, and the cloth is installed on the frame. It is not as hard as a conventional door, but a bit soft. Moreover, it can be retracted and folded like an accordion when opened and closed in the left and right directions, so the lock needs to be able to lock in the left and right directions and the front and back directions at the same time.

[0003] Existing locks:

[0004] 1. It is troublesome to lock into the slot, and matching accessories are required to be fixed on the profile. The installation requires additional labor, and small accessories are easy to lose.

[0005] 2. The lock tongue and hook part of the lock are relatively shallow, and the cloth door is soft, so it is easy to unhook after locking.

[0006] 3. Add accessories to the profile to facilitate locking, but this will cause a gap between the door and the profile frame, affecting privacy.

[0007] 4. The profile frame used with the door is an aluminum profile. The profile has narrow notches, and the depth varies from profile to profile. Due to market requirements, the profile cannot be processed, and the existing locks are not universal.

[0008] my country's public patent: CN1743687A discloses a profile connector, which includes a lock shell, a lock shaft located in the lock shell, a first return spring, a positioning block, a screw rod matched with the positioning block, a second return spring, and a stop block. When in use, the locking boss at the top of the positioning block protrudes out of the lock shell when the positioning block is not subjected to external force and is clamped on the side wall of the positioning hole of the installed profile, thereby connecting with the profile. When the positioning block is subjected to a downward pressure force, the locking boss retracts into the lock shell and disengages from the positioning hole of the installed profile. The profile connector is mainly used for connecting the metal profiles of the frames of furniture such as cabinets and tables and shelves. Generally, the connection between the horizontal bars and vertical bars of the frames of such products is relatively simple to install and disassemble on the profiles, but for the profile connector itself, the structures of its various components are mostly designed by itself, and its own structure and assembly of various components are also slightly cumbersome and not universal. Because the cloth-decorated folding door can be telescopic and folded, the first return spring may be compressed by mistake, causing the positioning block to be separated from the positioning hole of the profile, resulting in an unreliable lock, and the positioning hole needs to be processed on the profile, which does not meet market demand, so it is not suitable for the connection between the cloth-decorated folding door and the frame. Summary of the invention

[0009] In view of the deficiencies in the prior art, the present invention provides a connecting lock structure with reliable connection, universality, high installation efficiency and low cost.

[0010] The specific plan is as follows:

[0011] A connecting lock structure, used for connecting a door with a profile frame provided with a notch, comprises a lock column arranged on a door frame, a cylindrical double-door lock core rotatably arranged in the lock column, a lock slot is arranged on the lock column, a column is coaxially arranged on the double-door lock core and is located in the lock slot and has the same diameter as the double-door lock core, a lock tongue is arranged on the circumferential surface of the column, the lock tongue can rotate in the lock slot with the column, and an opening for the lock tongue to pass through is arranged on one side of the door frame;

[0012] It also includes a lock catch fixed in the door frame and a C-shaped adapter fixed to the circumferential surface of the cylinder;

[0013] The lock column passes through the lock buckle, and a pair of gradually approaching convex wings are provided on one side of the lock buckle, and the convex wings extend from the opening of the door frame. At the ends of the pair of convex wings, wing plates are provided which are parallel to each other and can be inserted into the groove of the profile frame, and the ends of the wing plates are provided with outward-turned wing hooks, and the wing hooks can hook the inner wall of the groove of the profile frame;

[0014] The lock tongue is located in the C-shaped opening of the C-shaped adapter, and the C-shaped adapter can rotate in the lock groove along with the column. The lock groove is located in the lock buckle. A protruding lock core insert is provided on the outer peripheral surface of the C-shaped adapter. The lock core insert can be movably inserted into or withdrawn from between the two wing plates to make the two wing plates open or close together.

[0015] Through the above technical solution design, the present invention can utilize existing lock components such as lock cylinders to cooperate with the new components of the present technical solution, and turn the double-door lock cylinder by the key, so that the wing hooks hook and lock the grooves of the profile frame, thereby securely locking the door.

[0016] As a further improvement of the present invention, it also includes an edge banding strip that is fitted and fixed to the side of the door frame, and one side of the edge banding strip is provided with a pair of elastic tentacles that are bent towards each other, and the tentacles are embedded in the opening of the door frame. The lock is clamped between the two tentacles, and a pair of protruding wings of the lock are located between the two tentacles and pass through the edge banding strip.

[0017] Through the above technical solution design, the edge banding strip can seal the lock and other components in the door frame, which is both dust-proof and beautiful, and can also play the role of fixing and supporting the lock.

[0018] As a further improvement of the present invention, the thickness of the lock core insert is greater than the distance between the two wing plates.

[0019] Through the above technical solution design, the lock core insert piece rotates with the C-shaped adapter to between the two wing plates to open the two wing plates.

[0020] As a further improvement of the present invention, the lock buckle is a cubic frame structure, the left side of the lock buckle is fixed to the door frame, the lock column is fixed to the right side of the lock buckle, the convex wing is arranged on the right side of the lock buckle, and a notch groove is provided at the lower end of the right side of the lock buckle to provide space for the lock core insert to move.

[0021] The above technical solution design makes it easy to process the lock buckle, and the structure of the lock buckle is convenient for assembly and connection with other components.

[0022] As a further improvement of the present invention, a hook is provided at the end of the lock core insert, and a chamfer is provided at the end of the hook.

[0023] The above technical solution design facilitates the end of the lock core insert to pass between the two convex wings.

[0024] As a further improvement of the present invention, the door frame is a profile structure with a square cross-section, the lock column passes through two opposite side surfaces of the door frame, the left side surface of the lock buckle is fixed to one side surface of the door frame through a connecting piece, and the lock column is fixed to the right side surface of the lock buckle through the connecting piece.

[0025] The above technical solution design facilitates the connection between the lock and the door frame and adapts to the connection with the profile structure.

[0026] As a further improvement of the present invention, the C-shaped adapter is fixed to the circumferential surface of the cylinder through a connecting piece.

[0027] The above technical solution design facilitates the connection and disassembly of the C-shaped adapter and the column.

[0028] As a further improvement of the present invention, a square hole for the convex wing to pass through is provided on the edge sealing strip.

[0029] As a further improvement of the present invention, the lock column passes through two opposite side surfaces of the lock buckle, and through holes cooperating with the lock column are provided on the two side surfaces of the lock buckle.

[0030] As a further improvement of the present invention, the cross-section of the lock column is spoon-shaped, and the upper end of the lock column is fixed to the right side surface of the lock buckle through a connecting piece.

[0031] The above technical solution design facilitates the connection between the lock column and the lock buckle.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] 1. The present invention can utilize existing locks on the market to realize reliable connection between the cloth-decorated folding door and the profile, and lock the door and the profile simultaneously in the left-right direction and the front-back direction.

[0034] 2. The structure is simple, making full use of the structural characteristics of the profile products, and is suitable for profiles of any company. It can be used universally, is reliable to use, has high installation efficiency, and reduces investment costs.

[0035] 3. When in use, turn the double-door lock core with the key, and the lock core insert can be movably inserted between the two wing plates, so that the wing plates are stretched and pressed to the side walls of the notch of the profile frame, and the wing hooks are hooked and locked to the notch of the profile frame. Because the lock core insert is located between the two wing plates, when the wing hooks are hooked to the notch of the profile frame, even if the cloth folding door is slightly shaken or folded, the wing hooks will not be separated from the notch of the profile frame, thereby securely locking the door.

[0036] 4. The edge banding can seal the lock and other parts in the door frame, which is dust-proof and beautiful, and can also play the role of fixing and supporting the lock.

[0037] 5. There is no need to match the profile with extra accessories, nor is there any need to further process the profile. The wing plate only needs to be inserted into the groove of the profile frame, and the lock core insert can be inserted between the two wing plates to make the two wing plates open and cooperate with the groove wall. The wing hook can hook the inner wall of the groove of the profile frame. This saves investment and installation costs, is universal, and there is no gap between the lock and the profile, which does not affect privacy. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the structure of the present invention;

[0039] Figure 2 It is a schematic diagram of the top view structure of the present invention;

[0040] Figure 3 It is a schematic diagram of the assembly structure of the lock cylinder, double door lock core, and C-shaped adapter;

[0041] Figure 4 is a schematic diagram of the structure of the lock;

[0042] Figure 5 It is a schematic diagram of the structure of a C-shaped adapter;

[0043] Figure 6 It is a structural schematic diagram of the door frame;

[0044] Figure 7 It is a partial structural schematic diagram of the edge banding;

[0045] Figure 8 It is a schematic diagram of the structure of the present invention connected to the profile frame;

[0046] Fig. 9 It is a schematic diagram of the structure of the present invention being detached from the profile frame.

[0047] In the figure: door 1, door frame 101, opening 102, profile frame 2, lock column 3, lock slot 301, double door lock core 4, column 401, lock tongue 402, lock buckle 5, convex wing 501, wing plate 502, wing hook 503, through hole 504, notch groove 505, C-shaped adapter 6, edge banding 7, antenna edge 701, square hole 702, lock core insert 8, hook 801, connector 9. DETAILED DESCRIPTION

[0048] The following will disclose the specific embodiments of the present invention with drawings. For the purpose of clear description, many physical details will be described together in the following description. However, it should be understood that these physical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these physical details are not necessary. In addition, for the purpose of simplifying the drawings, some conventional structures and components will be depicted in a simple schematic manner in the drawings.

[0049] See also Figure 1-9 The present invention discloses a connection lock structure, which is used for connecting a door 1 with a profile frame 2 provided with a notch, and comprises a lock column 3 arranged on a door frame 101 of the door 1, and a cylindrical double-door lock core 4 rotatably arranged in the lock column 3, a lock groove 301 is arranged on the lock column 3, and a column 401 is coaxially arranged on the double-door lock core 4, which is located in the lock groove 301 and has the same diameter as the double-door lock core 4, and a lock tongue 402 is arranged on the circumferential surface of the column 401, and the lock tongue 402 can rotate in the lock groove 301 with the column 401, and an opening 102 for the lock tongue 402 to pass through is arranged on one side of the door frame 101;

[0050] It also includes a lock buckle 5 fixed in the door frame 101 , a C-shaped adapter 6 fixed to the circumferential surface of the column 401 through a connecting piece 9 (here a set screw), and an edge banding strip 7 fixed to the side of the door frame 101 .

[0051] The lock column 3 passes through the lock buckle 5. A pair of gradually approaching convex wings 501 is provided on one side of the lock buckle 5. The convex wings 501 extend from the opening 102 of the door frame 101. At the ends of the pair of convex wings 501, there are wing plates 502 that are parallel to each other and can be inserted into the notch of the profile frame 2. At the ends of the wing plates 502, there are outward-turned wing hooks 503. The wing hooks 503 can hook the inner wall of the notch of the profile frame 2.

[0052] The lock tongue 402 is located in the C-shaped opening of the C-shaped adapter 6, and the C-shaped adapter 6 can rotate in the lock slot 301 along with the column 401, and the lock slot 301 is located in the lock buckle 5. A protruding lock core insert 8 is provided on the outer peripheral surface of the C-shaped adapter 6, and the lock core insert 8 can be movably inserted into or withdrawn from between the two wing plates 502 to open or close the two wing plates 502. The thickness of the lock core insert 8 is greater than the spacing between the two wing plates 502, and a hook 801 is provided at the end of the lock core insert 8, and a chamfer is provided at the end of the hook 801.

[0053] A pair of elastic antenna edges 701 bent toward each other are provided on one side of the edge banding strip 7. The antenna edges 701 are embedded in the opening 102 of the door frame 101. The lock buckle 5 is clamped between the two antenna edges 701. A pair of protruding wings 501 of the lock buckle 5 are located between the two antenna edges 701 and pass through the square hole 702 of the edge banding strip 7.

[0054] The lock buckle 5 is a cubic frame structure, the left side of the lock buckle 5 is fixed to the door frame 101, the lock column 3 is fixed to the right side of the lock buckle 5, the convex wing 501 is arranged on the right side of the lock buckle 5, and a notch groove 505 is arranged at the lower end of the right side of the lock buckle 5 to provide space for the lock core insert 8 to move.

[0055] The door frame 101 is a profile structure with a square cross section. The lock column 3 passes through two opposite side surfaces of the door frame 101. The left side surface of the lock catch 5 is fixed to one side surface of the door frame 101 through a connecting member 9 (here is a bolt and nut), and the lock column 3 is fixed to the right side surface of the lock catch 5 through a connecting member 9 (here is an inner cross screw).

[0056] The lock post 3 passes through two opposite sides of the lock buckle 5, and a through hole 504 is provided on the two sides of the lock buckle 5 to cooperate with the lock post 3. The cross section of the lock post 3 is spoon-shaped, and the upper end of the lock post 3 is fixed to the right side of the lock buckle 5 through a connecting piece 9.

[0057] See also Figure 8 , Fig. 9 When in use, the present invention is assembled first. The lock buckle 5 of this embodiment is a plastic part, and the door 1 is a cloth-decorated folding door. The lock buckle 5 is first fixed to the door frame 101 with bolts and nuts, and then the C-shaped adapter 6 is inserted into the middle of the lock buckle 5. At the same time, the lock column 3 passes through the side of the door frame 101, and passes through the through hole 504 of the lock buckle 5 and the C-shaped hole of the C-shaped adapter 6 at the same time. The C-shaped adapter 6 is fixed to the column 401 in the middle position of the double-door lock cylinder 4 with a set screw, and the upper end of the lock column 3 is fixed to the right side of the lock buckle 5 by an inner cross screw. The edge band 7 is attached from the front side of the door frame 101, and the two antenna edges 701 of the edge band 7 are embedded and fixed in the opening 102 of the door frame 101, and clamp the two sides of the lock buckle 5.

[0058] The double-door lock cylinder 4 is rotated by the key, and then the C-shaped adapter 6 is rotated to drive the lock cylinder insert 8 to rotate until it penetrates between the two wing plates 502, so that the two wing plates 502 are stretched and pressed against the notch wall of the profile frame 2, so that the wing hook 503 locks the notch of the profile frame 2, and the door 1 can be connected and locked with the profile frame 2. If you want to open the connection lock, you can rotate the double-door lock cylinder 4 in the opposite direction, so that the lock cylinder insert 8 rotates downward and withdraws from between the two wing plates 502, so that the two wing plates 502 are close together and restored, and the wing hook 503 is separated from the notch of the profile frame 2, and the cloth folding door 1 is slightly folded, so that the two wing plates 502 are away from the profile frame 2, and the door can be opened.

[0059] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A connecting lock structure, used for connecting a door (1) to a profile frame (2) provided with a notch, comprising a lock column (3) arranged on a door frame (101) of the door (1), and a cylindrical double-door lock core (4) rotatably arranged in the lock column (3); a lock groove (301) is arranged on the lock column (3); a column (401) is coaxially arranged on the double-door lock core (4) and is located in the lock groove (301) and has the same diameter as the double-door lock core (4); a lock tongue (402) is arranged on the circumferential surface of the column (401); the lock tongue (402) can rotate in the lock groove (301) along with the column (401); and an opening (102) for the lock tongue (402) to pass through is arranged on one side of the door frame (101); Features: It also includes a lock buckle (5) fixed in the door frame (101) and a C-shaped adapter (6) fixed to the circumferential surface of the column (401); The lock column (3) passes through the lock buckle (5), and a pair of gradually approaching convex wings (501) are provided on one side of the lock buckle (5), and the convex wings (501) extend from the opening (102) of the door frame (101). At the ends of the pair of convex wings (501), there are wing plates (502) that are parallel to each other and can extend into the groove of the profile frame (2), and at the ends of the wing plates (502), there are outward-turned wing hooks (503), and the wing hooks (503) can hook the inner wall of the groove of the profile frame (2); The lock tongue (402) is located in the C-shaped opening of the C-shaped adapter (6), and the C-shaped adapter (6) can rotate with the column (401) in the lock groove (301), and the lock groove (301) is located in the lock buckle (5). A protruding lock core insert (8) is provided on the outer peripheral surface of the C-shaped adapter (6), and the lock core insert (8) can be movably inserted into or withdrawn from between the two wing plates (502), so that the two wing plates (502) are stretched open or close together.

2. A connecting lock structure according to claim 1, characterized in that: It also comprises an edge banding strip (7) fitted and fixed to the side of the door frame (101), wherein one side of the edge banding strip (7) is provided with a pair of elastic horn edges (701) bent towards each other, wherein the horn edges (701) are embedded in an opening (102) of the door frame (101), wherein the lock buckle (5) is clamped between the two horn edges (701), and wherein a pair of protruding wings (501) of the lock buckle (5) are located between the two horn edges (701) and pass through the edge banding strip (7).

3. A connecting lock structure according to claim 1, characterized in that: The thickness of the lock core insert (8) is greater than the distance between the two wing plates (502).

4. A connecting lock structure according to claim 1, characterized in that: The lock buckle (5) is a cubic frame structure, the left side of the lock buckle (5) is fixed to the door frame (101), the lock column (3) is fixed to the right side of the lock buckle (5), the convex wing (501) is arranged on the right side of the lock buckle (5), and a notch groove (505) is arranged at the lower end of the right side of the lock buckle (5) to provide space for the lock core insert (8) to move.

5. A connecting lock structure according to claim 1, characterized in that: A curved hook (801) is provided at the end of the lock core insert (8), and a chamfer is provided at the end of the curved hook (801).

6. A connecting lock structure according to claim 4, characterized in that: The door frame (101) is a profile structure with a square cross section, the lock column (3) passes through two opposite side surfaces of the door frame (101), the left side surface of the lock catch (5) is fixed to one side surface of the door frame (101) via a connecting piece (9), and the lock column (3) is fixed to the right side surface of the lock catch (5) via the connecting piece (9).

7. A connecting lock structure according to claim 1, characterized in that: The C-shaped adapter (6) is fixed to the circumferential surface of the column (401) via a connecting piece (9).

8. A connecting lock structure according to claim 2, characterized in that: The edge sealing strip (7) is provided with a square hole (702) for the convex wing (501) to pass through.

9. A connecting lock structure according to claim 4, characterized in that: The lock column (3) passes through two opposite side surfaces of the lock buckle (5), and through holes (504) cooperating with the lock column (3) are provided on the two side surfaces of the lock buckle (5).

10. A connecting lock structure according to claim 6, characterized in that: The cross section of the lock column (3) is spoon-shaped, and the upper end of the lock column (3) is fixed to the right side surface of the lock buckle (5) via a connecting piece (9).

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