Invisible door lock

By setting a protruding anti-leakage latch at the bottom of the lock block and cooperating with the elastic latch groove inside the lock frame, the problem of the bottom of the lock block leaking out when pushed back is solved, realizing the full retraction of the lock block and improving the reliability of the concealed door lock.

CN223634480UActive Publication Date: 2025-12-05DONGGUAN JIEAOSI HARDWARE PROD
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Patent Information

Application Number
CN202423209826.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-24
Publication Date
2025-12-05
Estimated Expiration
2034-12-24

AI Technical Summary

Technical Problem

When the lock block of an existing concealed door lock is pushed back into the lock frame, the bottom of the lock block tends to protrude outwards, causing the lock block to fail to retract completely into the lock frame.

Method used

A leak-proof protrusion is formed on the bottom of the lock block near the inner side of the lock frame, and a leak-proof groove for the elastic locking element is provided inside the lock frame. The leak-proof protrusion at the bottom of the lock block is engaged with the groove through snap-fit. Combined with the wrapping part and the inclined guide part of the elastic locking element, the lock block is fully limited in all directions.

Benefits of technology

Ensure that the bottom of the lock block is completely retracted when it is pushed back into the lock frame, preventing the bottom of the lock block from protruding outwards, and achieving complete retraction of the entire lock block into the lock frame.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of door locks, in particular to an invisible door lock. Comprising a lock frame, a lock block slidably connected into the lock frame in the left-right direction, a compression spring clamped between the lock block and the lock frame, a hook block used for hooking the side, close to the interior of the lock frame, of the top of the lock block, and a pressing piece used for pushing the hook block and making the hook block stop hooking the lock block. The side, close to the interior of the lock frame, of the bottom of the lock block protrudes downwards to form a leakage-proof clamping protruding part, an elastic clamping piece is arranged in the lock frame, and a leakage-proof clamping groove matched with the leakage-proof clamping protruding part is formed in the elastic clamping piece. When the locking block is in a contraction state, the leakage-proof clamping convex part at the bottom of the locking block is clamped with the leakage-proof clamping groove of the elastic clamping piece; according to the utility model, when the lock block is pushed back into the lock frame, the bottom of the lock block can be ensured to completely retract into the lock frame, and the condition that the bottom of the lock block is exposed out of the lock frame can be avoided, so that the lock block can be ensured to completely retract into the lock frame when the lock block is pushed back into the lock frame.
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Description

TECHNICAL FIELD

[0001] The utility model relates to door lock technical field especially relates to a kind of invisible door lock. BACKGROUND

[0002] In order to improve the appearance, market appears as Figure 1 As shown in a kind of invisible door lock, including lock frame 1, lock block 2 in the lock frame 1 is connected in left and right direction sliding, compression spring 3 is clamped between lock block 2 and lock frame 1, for the hooking of the top of lock block 2 close to the inner side of lock frame 1 is hooked block 4, for pushing hook block 4 and make hook block 4 stop hooking lock block 2 is pressed piece 5;Lock block is hooked by hooking block, lock block is hidden in lock frame, when being pressed by pressing piece, pressing piece pushes hook block and makes hook block stop hooking lock block, lock block protrudes out of the side of lock frame under the pushing effect of compression spring;Although the invisible door lock can hook lock block by its hooking block and make lock block hidden in lock frame in door opening state, but lock block can exist as Figure 2 As shown, when lock block is pushed back to lock frame, the bottom of lock block is not completely retracted into lock frame. UTILITY MODEL CONTENTS

[0003] The utility model aims at the deficiency existing in prior art and provides a kind of invisible door lock, can ensure that when lock block is pushed back to lock frame, the bottom of lock block is completely retracted into lock frame and can avoid the bottom of lock block to appear the case of leaking out of lock frame, so as to ensure that when lock block is pushed back to lock frame, lock block is completely retracted into lock frame as a whole.

[0004] In order to realize the above-mentioned purpose, the utility model employs the technical scheme that a kind of invisible door lock, including lock frame, lock block in the lock frame is connected in left and right direction sliding, compression spring is clamped between lock block and lock frame, for the hooking of the top of lock block close to the inner side of lock frame is hooked block, for pushing hook block and make hook block stop hooking lock block is pressed piece, the bottom of lock block close to the inner side of lock frame is formed with anti-leakage clamping protrusion downwards, and the elastic clamping piece is provided in lock frame, and the elastic clamping piece is formed with the anti-leakage clamping groove matched with anti-leakage clamping protrusion;When lock block is in the state of contraction, the anti-leakage clamping protrusion of the bottom of lock block is clamped with the anti-leakage clamping groove of elastic clamping piece.

[0005] The further improvement of the above scheme is that the elastic clamping piece is also formed with winding part, and the elastic mounting column is provided in lock frame, and the winding part of elastic clamping piece is sleeved on the elastic mounting column.

[0006] The further improvement of the above scheme is that the elastic clamping piece is also formed with inclined guide part, and the inclined guide part is located at the side of anti-leakage clamping groove away from lock frame, and the elastic resisting block is provided in lock frame, and the end of inclined guide part away from anti-leakage clamping groove is resisted with elastic resisting block.

[0007] Further improvement of the above scheme is that the inclined guide part and the anti-leakage card slot are smoothly connected by a circular arc and form a circular arc convex peak part.

[0008] Further improvement of the above scheme is that the hook column is arranged in the lock frame, the hook slot is formed on one side of the top of the lock block, the hook block comprises a hook seat rotatably arranged on the hook column in the up-down direction, a hook pulling part arranged on the hook seat and used for cooperating with the hook slot, and a pushing part arranged on the hook seat, a torsional spring is arranged on the hook column, one end of the torsional spring abuts against the hook pulling part, the other end of the torsional spring abuts against the lock frame, the pressing part is formed with a pushing part used for pushing the pushing part and a limiting part used for preventing the pressing part from sliding out, and the pushing part is located between the pushing part and the limiting part.

[0009] Further improvement of the above scheme is that the hook column is arranged in the lock frame, the hook slot is formed on one side of the top of the lock block, the hook block comprises a hook seat rotatably arranged on the hook column in the up-down direction, a hook pulling part arranged on the hook seat and used for cooperating with the hook slot, and a pushing part arranged on the hook seat, a torsional spring is arranged on the hook column, one end of the torsional spring abuts against the hook pulling part, the other end of the torsional spring abuts against the lock frame, the pressing part is formed with a pushing part used for pushing the pushing part and a limiting part used for preventing the pressing part from sliding out, and the pushing part is located between the pushing part and the limiting part.

[0010] The utility model discloses beneficial effect lies in: the utility model discloses a kind of invisible door locks, including lock frame, lock block being slidably connected in lock frame along left and right direction, compression spring being clamped between lock block and lock frame, hook block for hooking the top of lock block close to the inside one side of lock frame, pressing piece for pushing hook block and making hook block stop hooking lock block, the bottom of lock block close to the inside one side of lock frame is formed with anti-leakage card convex part by protruding downward, lock frame is equipped with elastic card piece, and elastic card piece is formed with the anti-leakage card slot of cooperation with anti-leakage card convex part;When lock block is in the contraction state, the anti-leakage card convex part of the bottom of lock block is clamped with the anti-leakage card slot of elastic card piece;

[0011] Compared with the prior art, only the top of the lock block is limited, and the bottom of the lock block is not limited, and when the lock block is pushed back into the lock frame, i.e. when the lock block is in the contraction state, the anti-leakage card convex part of the bottom of the lock block is pushed back into the anti-leakage card slot of the elastic card piece. The utility model cooperates the anti-leakage card convex part of the lock block with the anti-leakage card slot of the elastic card piece, which can ensure that the bottom of the lock block is completely retracted into the lock frame when the lock block is pushed back into the lock frame, and can avoid the situation that the bottom of the lock block leaks out of the lock frame. Thus, the utility model can ensure that the lock block is completely retracted into the lock frame when the lock block is pushed back into the lock frame. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a structure schematic view of the prior art invisible door lock.

[0013] Figure 2 It is a structure schematic view of the prior art invisible door lock when the lock block is contracted.

[0014] Figure 3 It is a structure schematic view of the utility model.

[0015] The drawing mark is explained: lock frame 1, lock block 2, leakage prevention clamping convex part 21, hook groove 22, compression spring 3, hook block 4, hook seat 41, hook pulling part 42, pushed part 43, pressing part 5, pushing part 51, limit pulling part 52, elastic clamping part 6, leakage prevention clamping groove 61, winding part 62, inclined guide part 63, circular arc convex peak part 64, elastic mounting column 7, elastic resisting block 8, hook column 9, torsion spring 10, enhanced push rod 11. DETAILED DESCRIPTION

[0016] The utility model will be further explained in connection with the drawings, such as Figure 3 As shown in the figure, the utility model includes lock frame 1, lock block 2 that is slidably connected in lock frame 1 along left and right directions, compression spring 3 that is clamped between lock block 2 and lock frame 1, hook block 4 for hooking the top of lock block 2 close to one side in lock frame 1, pressing part 5 for pushing hook block 4 and making hook block 4 stop hooking lock block 2, the bottom of lock block 2 close to one side in lock frame 1 is downwardly protrudingly formed with leakage prevention clamping convex part 21, lock frame 1 is provided with elastic clamping part 6, and elastic clamping part 6 is formed with leakage prevention clamping groove 61 matched with leakage prevention clamping convex part 21, when lock block 2 is in the contraction state, the leakage prevention clamping convex part 21 on the bottom of lock block 2 is clamped with the leakage prevention clamping groove 61 of elastic clamping part 6, compared with the existing invisible door lock, only the top of lock block 2 is limited, the bottom of lock block 2 is not limited, when lock block 2 is pushed back to lock frame 1, that is, when lock block 2 is in the contraction state, the leakage prevention clamping convex part 21 on the bottom of lock block 2 is pushed back to the leakage prevention clamping groove 61 of elastic clamping part 6, the utility model is matched with the leakage prevention clamping convex part 21 of lock block 2 and the leakage prevention clamping groove 61 of elastic clamping part 6, can ensure that when lock block 2 is pushed back to lock frame 1, the bottom of lock block 2 is completely retracted to lock frame 1 and can avoid the bottom of lock block 2 from leaking out of lock frame 1, so that the whole lock block 2 can be completely retracted to lock frame 1 when it is pushed back to lock frame 1.

[0017] Elastic clamping part 6 is also formed with winding part 62, lock frame 1 is provided with elastic mounting column 7, and the winding part 62 of elastic clamping part 6 is sleeved on elastic mounting column 7, by sleeving the winding part 62 of elastic clamping part 6 on elastic mounting column 7, the installation of elastic clamping part 6 can be quickly and conveniently realized.

[0018] The elastic clamping piece 6 is further formed with an inclined guide portion 63, which is located away from the inner side of the lock frame 1 and abuts against the elastic abutting block 8. When the lock block 2 is pushed back into the lock frame 1, the anti-leakage clamping protrusion 21 on the bottom of the lock block 2 first passes through the inclined guide portion 63 of the elastic clamping piece 6 when being pushed back into the anti-leakage clamping groove 61, and the inclined guide portion 63 can guide the anti-leakage clamping protrusion 21, so that the anti-leakage clamping protrusion 21 can be better pushed back into the anti-leakage clamping groove 61.

[0019] The inclined guide portion 63 and the anti-leakage clamping groove 61 are smoothly connected by a circular arc and form a circular arc protrusion 64. When the anti-leakage clamping protrusion 21 is pushed out of or back into the anti-leakage clamping groove 61, it can be more smooth.

[0020] The lock frame 1 is provided with a hook column 9, and the top side of the lock block 2 is formed with a hook groove 22. The hook block 4 includes a hook seat 41 rotatably arranged on the hook column 9, a hook pulling portion 42 arranged on the hook seat 41 and used for cooperating with the hook groove 22, and a pushed portion 43 arranged on the hook seat 41. The hook column 9 is provided with a torsion spring 10, one end of the torsion spring 10 abuts against the hook pulling portion 42, and the other end of the torsion spring 10 abuts against the lock frame 1. The pressing piece 5 is formed with a pushing portion 51 for pushing the pushed portion 43 and a limit pulling portion 52 for preventing the pressing piece 5 from sliding out, and the pushed portion 43 is located between the pushing portion 51 and the limit pulling portion 52. When the pressing piece 5 is pressed inward, the pushing portion 51 of the pressing piece 5 pushes the pushed portion 43 of the hook block 4 and makes the hook block 4 rotate, the hook pulling portion 42 of the hook block 4 is pulled out of the hook groove 22 of the lock block 2 with the rotation of the hook block 4, the hook block 4 stops hooking the lock block 2, and the lock block 2 protrudes out of one side of the lock frame 1 under the pushing action of the compression spring 3. When the pressing of the pressing piece 5 is released, the hook block 4 rotates and resets under the action of the torsion spring 10. When the lock block 2 is pushed back into the lock frame 1 again, the hook groove 22 of the lock block 2 is hooked by the hook pulling portion 42 of the hook block 4 again and is limited.

[0021] The hook column 9 is sleeved with a reinforced push rod 11, one end of the reinforced push rod 11 is arranged on the hook seat 41, and the other end of the reinforced push rod 11 abuts against the lock block 2. When the pressing piece 5 is pressed and the hook block 4 is pushed and rotated, the reinforced push rod 11 rotates correspondingly with the rotation of the hook block 4 and pushes the lock block 2 outward, which can improve the outward protruding force of the lock block 2, so as to better ensure that the lock block 2 can protrude outward when the pressing piece 5 is pressed.

[0022] Working principle:

[0023] When the pressing member 5 is pressed, the pressing member 5 pushes the hook block 4 and makes the hook block 4 stop hooking the lock block 2, the lock block 2 is protruded out of one side of the lock frame 1 under the pushing action of the compression spring 3, when the lock block 2 is pushed back into the lock frame 1, the top side of the lock block 2 is limited by the hook block 4, and the bottom of the lock block 2 is limited by the anti-leakage clamping protrusion 21 of the lock block 2 and the anti-leakage clamping groove 61 of the elastic clamping member 6; the utility model can ensure that when the lock block 2 is pushed back into the lock frame 1, the bottom of the lock block 2 is completely retracted into the lock frame 1 and the condition that the bottom of the lock block 2 leaks out of the lock frame 1 can be avoided, so that the utility model can ensure that when the lock block 2 is pushed back into the lock frame 1, the lock block 2 is completely retracted into the lock frame 1.

[0024] Of course, the above only is the preferred embodiment of the utility model, therefore, the equivalent change or the modification that the structure, the feature and the principle of the utility model patent application range described do, all include in the utility model patent application range.

Claims

1. A concealed door lock, comprising a lock frame (1), a lock block (2) slidably connected in the lock frame (1) in a left-right direction, a compression spring (3) sandwiched between the lock block (2) and the lock frame (1), a hook block (4) for hooking the top of the lock block (2) near the inner side of the lock frame (1), and a pressing member (5) for pushing the hook block (4) and stopping the hook block (4) from hooking the lock block (2), characterized in that: The bottom of the lock block (2) is formed with a leakage prevention clamping protrusion (21) downwardly protruding near one side of the lock frame (1), the lock frame (1) is provided with an elastic clamping piece (6), the elastic clamping piece (6) is formed with a leakage prevention clamping groove (61) matched with the leakage prevention clamping protrusion (21); when the lock block (2) is in the retracted state, the leakage prevention clamping protrusion (21) of the bottom of the lock block (2) is clamped with the leakage prevention clamping groove (61) of the elastic clamping piece (6).

2. A concealed door lock according to claim 1, characterized in that: The elastic clamping piece (6) is further formed with a winding portion (62), the lock frame (1) is provided with an elastic mounting column (7), and the winding portion (62) of the elastic clamping piece (6) is sleeved on the elastic mounting column (7).

3. A concealed door lock according to claim 2, characterized in that: The elastic clamping piece (6) is further formed with an inclined guide portion (63), the inclined guide portion (63) is located away from the leakage prevention clamping groove (61) on one side of the lock frame (1), the lock frame (1) is provided with an elastic abutting block (8), and one end of the inclined guide portion (63) away from the leakage prevention clamping groove (61) is abutted with the elastic abutting block (8).

4. A concealed door lock according to claim 3, wherein: The inclined guide portion (63) and the leakage prevention clamping groove (61) are smoothly transitioned by a circular arc and form a circular arc protrusion (64).

5. A concealed door lock according to claim 1, characterized in that: The lock frame (1) is provided with a hook column (9), one side of the top of the lock block (2) is formed with a hook groove (22), the hook block (4) comprises a hook seat (41) rotatably arranged on the hook column (9) in the up-down direction, a hook pulling portion (42) arranged on the hook seat (41) and used for being matched with the hook groove (22), and a pushing portion (43) arranged on the hook seat (41), the hook column (9) is provided with a torsion spring (10), one end of the torsion spring (10) is abutted with the hook pulling portion (42), the other end of the torsion spring (10) is abutted with the lock frame (1), the pressing piece (5) is formed with a pushing portion (51) used for pushing the pushing portion (43) and a limit pulling portion (52) used for preventing the pressing piece (5) from sliding out, and the pushing portion (43) is located between the pushing portion (51) and the limit pulling portion (52).

6. A concealed door lock according to claim 5, characterized in that: The hook column (9) is sleeved with a reinforcing push rod (11), one end of the reinforcing push rod (11) is arranged on the hook seat (41), and the other end of the reinforcing push rod (11) is abutted with the lock block (2).