Anti-shock and anti-misoperation panel buckle lock

Abstract

This utility model relates to a shockproof and accident-proof panel latch lock, which addresses the technical problems of existing similar products being prone to component damage, functional failure, and difficulty in pre-tightening or opening operations when applied in vibration scenarios. The key feature is that one end of the handle fork of this panel latch lock extends out or protrudes above the bottom of the panel and is equipped with a touch head. The touch head of the handle fork is aligned with the first unlocking head at the latch fork protruding from the latch assembly below. The first unlocking head is a triangular protrusion located on one side of the outer diameter of the latch fork. When the handle is rotated and lifted within the handle groove of the panel, it drives the handle fork to rotate. The touch head of the handle fork abuts against the first unlocking head at the protruding end of the latch fork, driving the latch fork inside the latch assembly to rotate. The other side protrusion of the latch fork inside the latch assembly disengages from the side groove of the protrusion on one side of the movable latch inside the latch assembly, unlocking it. When the handle drives the handle fork to rotate and lift less than 15 degrees, the handle fork to the latch fork has a free travel.

Description

Technical Field

[0001] This utility model relates to a latch-type panel lock, which is a shockproof and accident-proof latch-type panel lock. Background Technology

[0002] Currently, the latch-type panel locks used in the industry generally consist of a handle assembly, a panel assembly, a torsion spring, a pivot, and a latch, as disclosed in Chinese patent literature, application number 20202041052.1, authorized announcement date 2021.01.08, utility model name "Waterproof Panel Lock". However, the industry currently uses such locks in many vibration scenarios. Their internal components are generally connected by multiple parts. If one part fails, it will cause functional failure and cannot be repaired, resulting in the cabinet door losing its pre-tightening or becoming unable to open. Therefore, further improvements are needed to the unlocking device and its connection structure of existing similar products to meet the above-mentioned requirements for shockproof and anti-opening use. Summary of the Invention

[0003] To overcome the aforementioned shortcomings, the purpose of this utility model is to provide a shockproof and accident-proof panel latch lock, thereby solving the technical problems of suboptimal structural design and component connection methods in existing similar products, which lead to easy damage to components, functional failure, difficulty in maintenance, and difficulty in pre-tightening or opening operations when applied in vibration scenarios. This objective is achieved through the following technical solution.

[0004] A shockproof and accident-proof panel latch lock is disclosed. When the handle is rotated in the handle groove at the top of the panel, it drives the integrated handle fork to rotate and unlock the latch assembly at the bottom of the panel. The movable latch of the latch assembly is located at the lock opening on one side of the latch assembly. The slot of the movable latch is misaligned with the lock opening of the latch assembly. On the other side of the latch assembly, symmetrical to the movable latch, there is a latch fork. The protrusion of the latch fork in the latch assembly abuts against the side groove of the movable latch to stop movement. The latch fork and the movable latch are fixed in the latch assembly by latch rivets and swing within the latch assembly. A latch fork torsion spring and a latch torsion spring are respectively provided at the latch rivet. The key structural design features a handle fork with one end extending out of or above the bottom of the panel and equipped with a touch head. The touch head of the handle fork is aligned with the first unlocking head of the latch fork extending from the lower latch assembly. The first unlocking head is triangular and protruding, located on one side of the outer diameter of the latch fork. When the handle is rotated and lifted in the handle groove of the panel, it drives the handle fork to rotate. The touch head of the handle fork abuts against the first unlocking head at the protruding end of the latch fork and drives the latch fork inside the latch assembly to rotate. The other side protrusion of the latch fork inside the latch assembly disengages from the side groove of the protrusion on one side of the movable latch inside the latch assembly and unlocks. When the slot of the opening on the other side of the movable latch rotates outward, the slot of the movable latch is obliquely aligned with the lock opening on one side of the latch assembly. Therefore, since the panel latch lock is installed in the mounting hole of the cabinet door, the latch assembly's locking port and the slot of the movable latch engage with the fixed latch of the door frame. When the protrusion of the latch fork inside the latch assembly disengages from the side slot of the movable latch to unlock, the cabinet door can be pulled to disengage the slot of the movable latch of the latch assembly from the fixed latch of the door frame, and the fixed latch of the door frame disengages from the slot of the movable latch and the locking port of the latch assembly to unlock.

[0005] When the handle drives the handle fork to rotate and lift it up less than 15 degrees, the handle fork has no travel between the handle fork and the locking fork. After the angle exceeds 15 degrees, the handle fork drives the locking fork to rotate. When the handle drives the handle fork to rotate and lift it up more than 45 degrees, the handle is limited to the latch assembly by the handle fork, and the handle fork is restrained by the latch assembly's housing. This no-travel structural design further ensures the stability of the panel latch lock under vibration conditions.

[0006] The touch head of the handle fork is formed by three curved pieces at its end and on both sides. When the touch head of the handle fork abuts against the first unlocking head of the locking fork, the first unlocking head of the locking fork is confined within the grooves of the curved pieces on both sides of the touch head of the handle fork, and the first unlocking head of the locking fork is rotated by the abutment of the curved pieces at the end of the handle fork. The above structure further improves the stability and firmness of the linkage between the touch head of the handle fork and the first unlocking head of the locking fork.

[0007] The top of the panel has a handle in a handle slot, one side of which is fixed to the handle slot and can be rotated and opened. The handle has a handle torsion spring on the rotating shaft. One end of the rotating shaft extends out of one side of the panel and has a handle fork. The other end of the handle fork has a shaft hole that is integrated with the rotating shaft inside the panel, and the other end of the handle fork extends out of a handle fork hole at the bottom of the panel. Alternatively, one end of the handle fork has a shaft hole that is integrated with the rotating shaft extending out of the panel, and the other end of the handle fork protrudes above the bottom of the panel. The bottom plate of the panel has a latch assembly that allows the handle fork to be moved and unlocked by rotating the handle. The above is a specific structural embodiment of the panel and handle connected by a rotating shaft, and the handle fork integrated with the handle via the rotating shaft.

[0008] A base plate fixing plate is provided in the handle groove at the top of the panel or at the bottom of the panel. The base plate is connected to the base plate fixing plate and the panel as a whole by corresponding rivets.

[0009] The second unlocking head, protruding from one side of the outer diameter of the handle fork within the latch assembly, extends out of the latch assembly. This facilitates manual unlocking from inside the cabinet door using the unlocking head of the handle fork.

[0010] When the slot of the movable latch is rotated outward and obliquely aligned with the latch opening on one side of the latch assembly, the outer side of the movable latch is restrained and located on the latch opening side of the housing of the latch assembly.

[0011] The housing of the latch assembly includes a latch seat and a cover plate. The latch seat and the cover plate are connected as one unit by a movable latch, a latch fork, a latch rivet, and a pin. A buffer rubber pad is provided at the bottom of the latch opening on one side of the latch assembly. The above structure makes the whole unit more robust and facilitates production and assembly.

[0012] The handle is equipped with a lock cylinder assembly. The lock cylinder of the lock cylinder assembly is fixedly installed in the lock cylinder hole of the handle by a stop washer, a lug washer, and a nut. The steel bolt at the bottom of the lock cylinder is locked to the panel fixing seat fixedly installed in the handle groove. The above is a specific structural embodiment of the lock cylinder assembly installed on the handle.

[0013] This utility model has a reasonable structural design, is easy to assemble, use and maintain, and has good stability and firmness, especially good shock resistance; it is suitable for use as a shockproof and accident-proof panel latch lock, and for structural improvements of similar products. Attached Figure Description

[0014] Figure 1 This is an exploded structural diagram of the present invention.

[0015] Figure 2 yes Figure 1 A side view of the structure in its initial assembled state.

[0016] Figure 3 yes Figure 2The diagram shows a cross-sectional view of the structure. The dashed lines in the diagram represent the 15-degree and 45-degree positions of the handle fork, the 45-degree position of the corresponding locking fork, and the outward unlocked position of the movable lock.

[0017] Figure 4 yes Figure 2 A schematic diagram of the bottom three-dimensional structure.

[0018] Figure 5 yes Figure 2 The diagram shows the internal structure of the panel. The handle is omitted from the diagram, and the dotted line represents the panel.

[0019] Attached Figures and Their Names: 1. Panel, 101. Handle Fork Hole, 2. Handle Fork, 201. Touch Head, 3. Panel Mounting Base, 4. Handle, 5. Handle Torsion Spring, 6. Shaft, 7. Nut, 8. Ear Stop Washer, 9. Stop Washer, 10. Lock Cylinder, 1001. Bolt, 11. Base Plate Mounting Plate, 12. Base Plate, 13. Locking Seat, 14. Buffer Rubber Pad, 15. Pin, 16. Locking Rivet, 17. Locking Torsion Spring, 18. Locking Fork Torsion Spring, 19. Movable Locking Buckle, 1901. Side Groove, 1902. Groove, 20. Locking Fork, 2001. First Unlocking Head, 2002. Protrusion, 2003. Second Unlocking Head, 21. Cover Plate. Implementation

[0020] The structure and use of this utility model will now be further described with reference to the accompanying drawings. Figures 1-5As shown, when the handle 4 in the top handle groove of the panel 1 of the panel latch lock is rotated and lifted, the handle drives the integrated handle fork 2 to rotate and unlock the latch assembly at the bottom of the panel. The movable latch 19 of the latch assembly is located at the lock opening on one side of the latch assembly. The slot 1902 of the movable latch is misaligned and closed with the lock opening of the latch assembly. On the other side of the latch assembly, a latch fork 20 is provided. The protrusion 2002 of the latch fork in the latch assembly abuts against the side groove 1901 of the movable latch to stop it. The latch fork and the movable latch are fixed in the latch assembly by latch rivets 16 and swing in the latch assembly. A latch fork torsion spring 18 and a latch torsion spring 17 are respectively provided at the latch rivet. One end of the aforementioned handle fork extends out of the bottom of the panel and is provided with three bent touch heads 201. The touch heads of the handle fork are aligned with the first unlocking head 2001 of the latch fork extending from the lower latch assembly. The first unlocking head is triangular and protruding and is located on one side of the outer diameter of the latch fork. When the handle is rotated and lifted in the handle groove of the panel, it drives the handle fork to rotate. The touch head of the handle fork abuts against the first unlocking head at the protruding end of the latch fork and drives the latch fork inside the latch assembly to rotate. The protrusion on the other side of the latch fork inside the latch assembly disengages from the side groove of the protrusion on one side of the movable latch inside the latch assembly and unlocks. When the slot of the opening on the other side of the movable latch rotates outward, the slot of the movable latch is obliquely aligned with the lock opening on one side of the latch assembly.

[0021] When the aforementioned handle drives the handle fork to rotate and lift it up less than 15 degrees, the handle fork to the locking fork has no travel. After the angle exceeds 15 degrees, the handle fork drives the locking fork to rotate. When the handle drives the handle fork to rotate and lift it up more than 45 degrees, the handle is limited by the handle fork to the latch assembly, and the handle fork is abutted and limited by the latch assembly's housing. The end and sides of the touch head of the aforementioned handle fork are formed by three curved pieces. When the touch head of the handle fork abuts against the first unlocking head of the locking fork, the first unlocking head of the locking fork is limited to the grooves of the curved pieces on both sides of the touch head of the handle fork, and the end curved pieces of the handle fork abut against and drive the first unlocking head of the locking fork to rotate.

[0022] The aforementioned panel has a handle in the top handle slot, one side of which is fixed to the handle slot by a pivot and can be rotated and opened. The pivot at the handle has a handle torsion spring 5. One end of the pivot extends out of the panel and has a handle fork. The other end of the handle fork has a shaft hole connected to the pivot inside the panel, and the other end of the handle fork extends out of the handle fork hole 101 at the bottom of the panel. The bottom plate 12 of the panel has a latch assembly that, when the handle is rotated and opened, drives the handle fork to move together and unlock. A bottom plate fixing plate 11 is provided in the top handle slot or at the bottom of the panel. The bottom plate is connected to the bottom plate fixing plate and the panel by corresponding rivets. A second unlocking head 2003 protruding from the outer diameter side of the handle fork in the latch assembly extends out of the latch assembly. When the slot of the movable latch rotates outwards and obliquely aligns with the lock opening on one side of the latch assembly, the outer side of the movable latch abuts against and is limited to the lock opening side housing of the latch assembly.

[0023] The housing of the aforementioned latch assembly includes a latch seat 13 and a cover plate 21. The latch seat and the cover plate are connected as one unit by a movable latch, a latch rivet 16 at the latch fork, and a pin 15. A buffer rubber pad 14 is provided at the bottom of the lock opening on one side of the latch assembly. The handle is provided with a lock cylinder assembly. The lock cylinder 10 of the lock cylinder assembly is fixedly installed in the lock cylinder hole of the handle by a stop washer 9, a lug washer 8, and a nut 7. The steel bolt 1001 at the bottom of the lock cylinder is locked to the panel fixing seat 3 fixedly installed in the handle groove.

[0024] In use, the panel latch lock is installed in the mounting hole of the door panel and aligned with the fixed latch of the door frame. When the door is closed, the fixed latch of the door frame is struck by the impact, causing the movable latch of the latch assembly on the inside of the door panel at the bottom of the panel latch lock. During the impact, the movable latch rotates into the latch assembly. To unlock, a key needs to be inserted into the lock cylinder assembly of the handle. After the handle is unlocked, turn the handle up. The handle causes the handle latch to rotate together. The handle latch causes the latch fork inside the latch assembly to rotate, and the latch fork and the movable latch are unlocked. At this time, pull the door panel outward. The movable latch inside the latch assembly rotates outward, and the fixed latch of the door frame can disengage from the movable latch of the latch assembly, allowing the door panel to open.

[0025] The advantages of this panel latch lock are as follows: 1. When the handle is raised to ≤15°, the movement from the handle fork to the latch fork is free travel; when it exceeds 15°, the handle fork drives the movable latch fork to rotate, thus opening the movable latch; 2. When the handle is raised to ≥45°, the handle is limited and cannot be opened; 3. After the handle is released, it automatically resets. Furthermore, this panel latch lock eliminates the connecting structure between the handle fork and the latch fork, changing the direct connection to an indirect connection, with the handle and handle fork structure integrated into one unit.

[0026] Based on the above structural features and existing technology, one end of the handle fork is higher than the bottom of the panel and is provided with three bent touch heads. The shaft hole at one end of the handle fork is connected to the rotating shaft extending from the panel, and the other end of the handle fork is higher than the bottom of the panel.

[0027] In summary, this panel latch lock primarily involves improvements to its shock-resistant and accidental opening structure. It is mainly used in industries such as engineering machinery, industrial cabinets, and automated control manufacturing, specifically for doors and cabinets in these sectors. Furthermore, this panel latch lock simplifies the structural design while fulfilling functional requirements, addressing the challenges of similar products in high-vibration environments. Its simplified design, optimized components, and convenient production and installation, along with the indirect contact between the handle and the latch, solve the problems of similar products on the market that are not shock-resistant, prone to accidental opening, and susceptible to misoperation.

Claims

1. A shockproof and accident-proof panel latch lock, wherein when the handle (4) in the handle groove at the top of the panel (1) of the latch lock is rotated and lifted, the handle drives the integrated handle fork (2) to rotate and unlock the latch assembly at the bottom of the panel; the movable latch (19) of the latch assembly is provided at the lock opening on one side of the latch assembly, the slot (1902) of the movable latch is misaligned and closed with the lock opening of the latch assembly, and a latch fork (20) is provided in the latch assembly on the other side symmetrical to the movable latch, the protrusion (2002) of the latch fork in the latch assembly abuts against the side groove (1901) of the movable latch to stop, the latch fork and the movable latch are fixed in the latch assembly by latch rivets (16) and swing, and latch fork torsion spring (18) and latch torsion spring (17) are respectively provided at the latch rivet; characterized in that One end of the handle fork (2) extends out or protrudes above the bottom of the panel (1) and is provided with a touch head (201). The touch head of the handle fork is aligned with the first unlocking head (2001) at the latch fork (20) of the latch assembly extending below. The first unlocking head is triangular and protruding and is located on one side of the outer diameter of the latch fork. When the handle (4) in the handle groove of the panel is rotated and lifted, it drives the handle fork to rotate. The touch head of the handle fork abuts against the first unlocking head at the protruding end of the latch fork and drives the latch fork in the latch assembly to rotate. The protrusion (2002) on the other side of the latch fork in the latch assembly disengages from the side groove (1901) at the protrusion on one side of the movable latch (19) in the latch assembly. When the slot (1902) on the other side of the movable latch rotates outward, the slot of the movable latch is obliquely aligned with the lock opening on one side of the latch assembly.

2. The shockproof and accidental opening resistant panel latch lock according to claim 1, characterized in that... When the handle (4) drives the handle fork (2) to rotate and lift up less than 15 degrees, the handle fork to the locking fork (20) is in a free stroke. After the angle is greater than 15 degrees, the handle fork drives the locking fork to rotate. When the handle drives the handle fork to rotate and lift up more than 45 degrees, the handle is limited to the buckle assembly by the handle fork, and the handle fork is limited to the housing of the buckle assembly.

3. The shockproof and accidental opening resistant panel latch lock according to claim 1, characterized in that... The end and sides of the touch head (201) of the handle fork (2) are formed by three curved pieces. When the touch head of the handle fork abuts against the first unlocking head (2001) of the locking fork (20), the first unlocking head of the locking fork is limited to the groove of the curved pieces on both sides of the touch head of the handle fork, and the first unlocking head of the locking fork is rotated by the abutting of the curved pieces at the end of the handle fork.

4. The shockproof and accidental opening resistant panel latch lock according to claim 1, characterized in that... The top handle slot of the panel (1) is provided with a handle (4) that is fixed to the handle slot by a rotating shaft (6) on one side and can be rotated and opened. The rotating shaft at the handle is provided with a handle torsion spring (5). One end of the rotating shaft extends out of the panel and is provided with a handle fork (2). The shaft hole at the other end of the handle fork is connected to the rotating shaft inside the panel, and the other end of the handle fork extends out of the handle fork hole (101) at the bottom of the panel. Alternatively, the shaft hole at one end of the handle fork is connected to the rotating shaft extending out of the panel, and the other end of the handle fork is higher than the bottom of the panel. The bottom plate (12) at the bottom of the panel is provided with a buckle assembly that can be driven to move and unlock together by rotating the handle and opening it.

5. The shockproof and accidental opening resistant panel latch lock according to claim 4, characterized in that... The top handle groove of the panel (1) or the bottom of the panel is provided with a base plate fixing plate (11), and the base plate (12) is connected to the base plate fixing plate and the panel by corresponding rivets.

6. The shockproof and accidental opening resistant panel latch lock according to claim 1, characterized in that... The second unlocking head (2003) protruding from one side of the outer diameter of the handle fork (2) inside the buckle assembly extends out of the buckle assembly.

7. The shockproof and accidental opening resistant panel latch lock according to claim 1, characterized in that... When the slot (1902) of the movable latch (19) is rotated outward and obliquely aligned with the latch opening on one side of the latch assembly, the outer side of the movable latch is restrained and located on the latch opening side of the housing of the latch assembly.

8. The shockproof and accidental opening resistant panel latch lock according to claim 1, characterized in that... The housing of the latch assembly includes a latch seat (13) and a cover plate (21). The latch seat and the cover plate are connected as one unit by a movable latch (19) and a latch rivet (16) at the latch fork (20). A buffer rubber pad (14) is provided at the bottom of the latch opening on one side of the latch assembly.

9. The shockproof and accidental opening resistant panel latch lock according to claim 1, characterized in that... The handle (4) is provided with a lock cylinder assembly. The lock cylinder (10) of the lock cylinder assembly is fixedly installed in the lock cylinder hole of the handle by a nut (7). The steel bolt (1001) at the bottom of the lock cylinder is locked with the panel fixing seat (3) fixedly installed in the handle groove.

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