Sliding door lock with single coupler knuckle capable of being opened upwards and capable of being closed
By designing a sliding door lock body with a single hook tongue that opens upward and can be closed, the synergy of the night tongue plate, anti-theft hook and lock core plug is used to solve the failure and maintenance problems caused by the hook tongue downward, achieving higher safety and convenience.
Patent Information
- Application Number
- CN202421686440.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-07-17
AI Technical Summary
The hook tongue of the existing indoor door and bathroom door body lock is facing downward, which is prone to knocking out due to deformation or misoperation of the door leaf, causing the door lock to fail and frequent repairs.
A sliding door lock body with a single hook tongue opening upwards and can be closed doors is designed. The inner cavity is equipped with a night tongue plate, an anti-theft hook and a lock core plug. Through the synergy of these components, the automatic retraction and anti-theft function of the hook tongue are realized.
Effectively prevent external forces from opening the door, prevent lock failure caused by deformation of the door leaf, and avoid knocking the hook tongue out due to misoperation, reduce maintenance frequency, and improve convenience and safety of use.
Smart Images
Figure CN222991304U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of locks, and particularly to a movable door lock body with a single hook tongue that opens upward and can close the door, which adds a device for preventing the lock core from ejecting the hook tongue in the door open state. Background Art
[0002] For existing indoor door and bathroom door locks, the hook tongues of indoor movable door locks all face downward. If the door leaf deforms and drops downward, it will cause the door lock to malfunction. Moreover, after the door is opened, the hook tongue may be ejected due to misoperation, thus bringing inconvenience to life or maintenance, and frequent maintenance is required, which invisibly increases the time and energy costs. Content of the Utility Model
[0003] In view of the above technical problems in the related art, the utility model provides a movable door lock body with a single hook tongue that opens upward and can close the door, which can overcome the above-mentioned deficiencies of the prior art.
[0004] To achieve the above technical purpose, the technical solution of the utility model is realized as follows:
[0005] The utility model relates to a movable door lock body with a single hook tongue that opens upward and can close the door, including a lock body panel, a lower lock shell and an upper lock shell that are detachably connected. The lock body panel, the lower lock shell and the upper lock shell jointly enclose to form the inner cavity of the movable door lock body. An upper part of the inner cavity is provided with a night tongue piece that can repeatedly extend or retract through the lock body panel. The left end of the night tongue piece is connected to the left end of a night tongue transmission piece, and the right end of the night tongue transmission piece is in transmission connection with the upper part of a positioning piece. The lower part of the positioning piece is in movable contact with the upper part of a locking block. A square tongue piece is arranged on the front side or the rear side of the locking block in the inner cavity. The square tongue piece is movably connected to the locking block, and the left end of the square tongue piece is connected with an anti-theft hook that can repeatedly extend or retract from the lock body panel. A lower part of the inner cavity is provided with a lock core dial. An upper part of the lock core dial is provided with a dial upper block that can toggle the square tongue piece and the locking block.
[0006] Preferably, a screw guide piece is arranged on the left side of the lock core dial.
[0007] Preferably, the locking block is located on the front side of the square tongue piece.
[0008] Preferably, the anti-theft hook includes an anti-theft hook linkage rod and an anti-theft hook telescopic section. The anti-theft hook linkage rod is in transmission connection with the left end of the square tongue piece. The bottom end of the anti-theft hook linkage rod is connected to the right end of the anti-theft hook telescopic section. When the anti-theft hook linkage rod is driven by the square tongue piece to rotate, the left end of the anti-theft hook telescopic section is driven by the anti-theft hook linkage rod to rotate and thus extends or retracts from the lock body panel.
[0009] Preferably, the anti-theft hook is integrally in a spoon shape or a V shape.
[0010] Preferably, a night tongue return spring is arranged at the right end of the night tongue piece.
[0011] Preferably, a positioning piece lower shifting block is provided at the lower part of the positioning piece, and a locking block upper left protrusion is provided at the upper part of the locking block, and the positioning piece lower shifting block corresponds to and cooperates with the locking block upper left protrusion.
[0012] Preferably, the upper part of the square tongue piece is also connected to a square tongue return spring to assist the square tongue piece in returning to its original position.
[0013] Preferably, a square tongue lower snap-in corresponding to the upper shift block of the thumbwheel is provided at the lower part of the square tongue piece; when the upper shift block of the thumbwheel rotates clockwise or counterclockwise, it will slide into or out of the lower snap-in of the square tongue piece and press against the lower part of the square tongue piece, thereby shifting the square tongue piece.
[0014] Preferably, the square tongue piece is provided with a long square tongue linkage hole, and the lower lock shell is provided with a connecting column passing through the square tongue linkage hole from the front-to-back direction. The square tongue piece and the lower lock shell are connected through the cooperation of the square tongue linkage hole and the corresponding connecting column, so that the movement range of the square tongue piece is subject to necessary restrictions.
[0015] Preferably, the left end of the night tongue piece is provided with a telescopic section of the night tongue piece which can be repeatedly extended or retracted through the lock body panel.
[0016] The beneficial effects of the utility model are as follows: the hook tongue of the product is designed to face upwards, and the hook tongue is pushed out after closing the door, and is retracted into the lock body when opening the door, which has the function of preventing the door from being lifted up by external force to prevent the door from being opened and theft prevention function, and also has the function of preventing the door leaf from deforming and falling down to cause the door lock to malfunction, and the hook tongue will not be pushed out when the door is opened, and the hook tongue will not hit the door frame and be damaged because the door is not closed. The product avoids the possibility of making people anxious due to misoperation, avoids the hook tongue being pushed out due to misoperation of the door opening hook, and closes the door and is installed on the door frame, and has the function of anti-theft, and the installation steps are the same as the traditional installation method, and the operation is simple and quick. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0018] Figure 1 This is a diagram of the unlocked (unlocked) state of the sliding door lock body according to an embodiment of the utility model.
[0019] Figure 2 This is a locked state diagram of the sliding door lock body according to an embodiment of the utility model.
[0020] Figure 3 It is a partial disassembled detail diagram of the sliding door lock body according to an embodiment of the utility model.
[0021] In the figure: 1. Lock body panel; 2. Lower lock shell; 3. Upper lock shell; 4. Anti-theft hook; 4-1. Anti-theft hook linkage rod; 4-2. Anti-theft hook telescopic section; 5. Square tongue piece; 5-1. Lower clamping opening of the square tongue; 5-2. Square tongue linkage hole; 6. Night tongue transmission piece; 7. Positioning piece; 7-1. Lower dialing block of the positioning piece; 8. Night tongue piece; 8-1. Night tongue piece telescopic section; 9. Square tongue return spring; 10. Locking block; 10-1. Upper left convex block of the locking block; 11. Screw guide piece; 12. Lock core dial; 12-1. Upper dialing block of the dial; 13. Night tongue return spring. Detailed implementation mode
[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present invention.
[0023] As shown in the figure, for the convenience of understanding the above technical solutions of the present invention, the above technical solutions of the present invention will be described in detail below through specific usage methods.
[0024] During specific use, the single-hook tongue upward-opening and closable door-moving lock body includes a lock body panel 1, a lower lock shell 2, and an upper lock shell 3 that are detachably connected. The lock body panel 1, the lower lock shell 2, and the upper lock shell 3 jointly enclose the inner cavity of the door-moving lock body. It is characterized in that a night tongue piece 8 that can repeatedly extend or retract through the lock body panel 1 is provided in the upper part of the inner cavity. The night tongue piece 8 is connected to the left end of the night tongue transmission piece 6. The right end of the night tongue transmission piece 6 is in transmission connection with the upper part of the positioning piece 7. The lower part of the positioning piece 7 is in movable contact with the upper part of the locking block 10. A square tongue piece 5 is provided on the front side or the rear side of the locking block 10 in the inner cavity. The square tongue piece 5 is movably connected to the locking block 10. The left end of the square tongue piece 5 is connected with an anti-theft hook 4 that can repeatedly extend or retract from the lock body panel 1;
[0025] A lock core dial 12 is provided in the lower part of the inner cavity. An upper dialing block 12-1 that can dial the square tongue piece 5 and the locking block 10 is provided on the upper part of the lock core dial 12.
[0026] In a specific embodiment, a screw guide piece 11 is provided on the left side of the lock core dial 12.
[0027] In a specific embodiment, the locking block 10 is located on the front side of the square tongue piece 5.
[0028] In a specific embodiment, the anti-theft hook 4 includes an anti-theft hook linkage rod 4-1 and an anti-theft hook telescopic section 4-2. The anti-theft hook linkage rod 4-1 is transmission-connected to the left end of the square tongue piece 5, and the bottom end of the anti-theft hook linkage rod 4-1 is connected to the right end of the anti-theft hook telescopic section 4-2. When the anti-theft hook linkage rod 4-1 is driven to rotate by the square tongue piece 5, the left end of the anti-theft hook telescopic section 4-2 is thereby driven to rotate by the anti-theft hook linkage rod 4-1, thereby extending or retracting from the lock body panel 1.
[0029] In a specific embodiment, the anti-theft hook 4 is spoon-shaped or V-shaped as a whole.
[0030] In a specific embodiment, a night tongue return spring 13 is provided at the right end of the night tongue piece 8.
[0031] In a specific embodiment, a positioning piece lower shifting block 7-1 is provided at the lower portion of the positioning piece 7, and a locking block upper left protrusion 10-1 is provided at the upper portion of the locking block 10, and the positioning piece lower shifting block 7-1 corresponds to and cooperates with the locking block upper left protrusion 10-1.
[0032] In a specific embodiment, the upper portion of the square tongue piece 5 is also connected to a square tongue reset spring 9 to assist the reset of the square tongue piece 5 .
[0033] In a specific embodiment, a square tongue lower snap-in 5-1 corresponding to the dial block 12-1 on the dial wheel is provided at the lower portion of the square tongue piece 5; when the dial block 12-1 on the dial wheel rotates clockwise or counterclockwise, it will slide into or out of the square tongue lower snap-in 5-1, and press against the lower portion of the square tongue piece 5, thereby moving the square tongue piece 5.
[0034] In a specific embodiment, the square tongue piece 5 is provided with a long square tongue linkage hole 5-2, and the lower lock shell 2 is provided with a connecting column passing through the square tongue linkage hole 5-2 from the front-to-back direction. The square tongue piece 5 and the lower lock shell 2 are connected through the cooperation of the square tongue linkage hole 5-2 and the corresponding connecting column, so that the movement range of the square tongue piece 5 is subject to necessary restrictions.
[0035] In a specific embodiment, the left end of the night tongue piece 8 is provided with a night tongue piece telescopic section 8-1 which can be repeatedly extended or retracted through the lock body panel 1.
[0036] In a specific embodiment, the length of the telescopic section 8-1 of the night tongue piece depends on actual needs and is preferably 5 cm.
[0037] In a specific embodiment, the anti-theft hook 4, the square tongue piece 5, the positioning piece 7, the square tongue return spring 9, and the lock cylinder dial wheel 12 are all connected to the lower lock shell 2 by a connecting column, thereby obtaining a rotation or motion axis, and thus being subject to limiting and other effects. This is the prior art.
[0038] Working principle: (A). Unlocked state: The sliding door is in the unlocked state when it is open. It has the function of locking the lock cylinder while unlocking it. Therefore, the lock cylinder cannot drive the lock tongue in the unlocked state.
[0039] (B). Locked state: First, close the sliding door. At this time, the retractable section 8-1 of the night latch of the lock body contacts the door frame and retracts into the lock body. At the same time, the night latch transmission piece 6 is pushed by the night latch piece 8, causing the positioning piece 7 to rotate clockwise. At this time, the lower dial block 7-1 of the positioning piece and the upper left convex block 10-1 of the locking block are disengaged from each other.
[0040] Then, rotate the lock core dial 12 counterclockwise. At this time, the upper dial block 12-1 on the dial interacts with the locking block 10, causing the locking block 10 and the square tongue piece 5 to be pushed and separated from each other. At the same time, the upper dial block 12-1 on the dial contacts the lower part of the square tongue piece 5. Due to the counterclockwise thrust, the square tongue piece 5 translates (moves left) towards the lock body panel 1 and drives the anti-theft hook 4-1, causing the anti-theft hook retractable section 4-2 of the anti-theft hook 4 to extend out of the lock body panel 1 - this is the locked state at this time.
[0041] (C). Unlocked state: Rotate the lock core dial 12 clockwise, so that the upper dial block 12-1 on the dial interacts with the lower part of the square tongue piece 5, driving the square tongue piece 5 to move away from the lock body panel 1 (move right), prompting the square tongue piece 5 to drive the anti-theft hook 4 to rotate, and the anti-theft hook retractable section 4-2 retracts into the lock body. Translate the sliding door to open it. At this time, the night latch piece 8 is disengaged from the door frame. Under the action of the night latch spring 13, the night latch piece 8 is withdrawn 5 mm outside the lock body panel. This is the unlocked state at this time.
[0042] In summary, with the above technical solution of the present utility model, the product is designed with the hook tongue facing upward. After closing the door, the hook tongue is ejected, and when opening the door, the hook tongue retracts into the lock body. It has the anti-theft function of preventing the door from being lifted open by external force, and also has the function of preventing the door leaf from deforming and falling downward, which may cause the door lock to malfunction. And it will not eject the hook tongue when the door is opened, so that the hook tongue will not hit the door frame and be damaged because the door is not found to be closed. This product avoids the possibility of anxiety caused by misoperation, avoids the hook tongue being ejected due to misoperation of the door opening hook, and hitting the door frame when closing the door, and has both anti-theft function. The installation steps are the same as the traditional installation method, and the operation is simple and fast.
[0043] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.
Claims
1. A sliding door lock body with a single hook tongue that opens upward and can close the door, comprising a detachably connected lock body panel (1), a lower lock shell (2) and an upper lock shell (3), wherein the lock body panel (1), the lower lock shell (2) and the upper lock shell (3) together enclose an inner cavity of the sliding door lock body, characterized in that: A night tongue piece (8) capable of repeatedly extending or retracting through the lock body panel (1) is provided at the upper part of the inner cavity, the night tongue piece (8) is connected to the left end of the night tongue transmission piece (6), the right end of the night tongue transmission piece (6) is transmission-connected to the upper part of the positioning piece (7), the lower part of the positioning piece (7) is movably contacted with the upper part of the locking block (10), the inner cavity is provided with a square tongue piece (5) at the front side or the rear side of the locking block (10), the square tongue piece (5) is movably connected to the locking block (10), and the left end of the square tongue piece (5) is connected to an anti-theft hook (4) capable of repeatedly extending or retracting from the lock body panel (1); A lock core dial wheel (12) is provided at the lower part of the inner cavity, and an upper dial block (12-1) capable of moving the square tongue piece (5) and the locking block (10) is provided at the upper part of the lock core dial wheel (12).
2. The sliding door lock body according to claim 1, characterized in that: A screw guide piece (11) is provided on the left side of the lock core dial wheel (12).
3. The sliding door lock body according to claim 1, characterized in that: The locking block (10) is located on the front side of the square tongue piece (5).
4. The sliding door lock body according to claim 1, characterized in that: The anti-theft hook (4) comprises an anti-theft hook linkage rod (4-1) and an anti-theft hook telescopic section (4-2); the anti-theft hook linkage rod (4-1) is transmission-connected to the left end of the square tongue piece (5); the bottom end of the anti-theft hook linkage rod (4-1) is connected to the right end of the anti-theft hook telescopic section (4-2); when the anti-theft hook linkage rod (4-1) is driven to rotate by the square tongue piece (5), the left end of the anti-theft hook telescopic section (4-2) is thereby driven to rotate by the anti-theft hook linkage rod (4-1), thereby extending from or retracting from the lock body panel (1).
5. The sliding door lock body according to claim 1, characterized in that: A night tongue return spring (13) is provided at the right end of the night tongue piece (8).
6. The sliding door lock body according to claim 1, characterized in that: The lower portion of the positioning piece (7) is provided with a positioning piece lower shifting block (7-1), and the upper portion of the locking block (10) is provided with a locking block upper left protrusion (10-1), and the positioning piece lower shifting block (7-1) corresponds to and cooperates with the locking block upper left protrusion (10-1).
7. The sliding door lock body according to claim 1, characterized in that: The upper part of the square tongue piece (5) is also connected to a square tongue reset spring (9) for assisting the reset of the square tongue piece (5).
8. The sliding door lock body according to claim 1, characterized in that: The lower part of the square tongue piece (5) is provided with a square tongue lower snap-in opening (5-1) corresponding to the upper shifting block (12-1) of the thumbwheel; when the upper shifting block (12-1) of the thumbwheel rotates clockwise or counterclockwise, it slides into the square tongue lower snap-in opening (5-1) or slides out from the square tongue lower snap-in opening (5-1) and presses against the lower part of the square tongue piece (5), thereby shifting the square tongue piece (5).
9. The sliding door lock body according to claim 1, characterized in that: The square tongue piece (5) is provided with a long square tongue linkage hole (5-2), and the lower lock shell (2) is provided with a connecting column passing through the square tongue linkage hole (5-2) from the front-to-back direction. The square tongue piece (5) and the lower lock shell (2) are connected through the cooperation between the square tongue linkage hole (5-2) and the corresponding connecting column, so that the movement range of the square tongue piece (5) is necessarily limited.
10. The sliding door lock body according to claim 1, characterized in that: The left end of the night latch (8) is provided with a night latch telescopic section (8-1) which can be repeatedly extended or retracted through the lock body panel (1).