Handle plane lock with auxiliary pop-up function

By introducing a locking hook spring and pin structure into the handle flat lock, and utilizing the dual elasticity of the torsion spring and the pin, the problem of poor handle ejection effect is solved, achieving stable handle ejection and improved sealing, making it suitable for places such as new energy vehicle charging piles.

CN224244592UActive Publication Date: 2026-05-15NINGBO SEHNGJIU CABINET LOCK CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO SEHNGJIU CABINET LOCK CO LTD
Filing Date
2025-05-21
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

The existing handle-mounted flat locks have poor handle ejection performance and lack a structural design to assist in handle ejection.

Method used

A locking hook spring and pin structure are set in the base of the handle flat lock. The double elasticity of the torsion spring and the pin is used to achieve the auxiliary pop-out of the handle. Combined with the self-locking elasticity of the locking hook spring and the reset effect of the second spring, the stability and sealing of the handle are enhanced.

Benefits of technology

The stability and sealing of the handle's pop-out mechanism have been improved, ensuring the handle remains hidden within the base and meeting the usage requirements of charging stations for new energy vehicles and other similar locations.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a handle plane lock with an auxiliary pop-up function, and aims to solve the technical problems that a torsion spring is only arranged at the hinged position of a handle of the conventional similar product and a rotating shaft, and the tail part of one end of a lock cylinder of the handle is lack of a structural design for assisting the pop-up of the handle. A handle of the handle plane lock is arranged in a handle groove in the top of a base, and one end of the handle is hinged to one end of a rotating shaft in a rotating shaft hole in one end of the base and provided with a torsional spring. The anti-theft lock is characterized in that a lock shell is arranged at a lock groove in the base, a lock hook elastic piece is arranged on one side in the lock shell, one end of the lock hook elastic piece is aligned with a lock head of the lock cylinder assembly, a hook groove is formed in the other end of the lock hook elastic piece, a protruding column at one end of a pin column is limited to a buckling hook on one side in the hook groove of the lock hook elastic piece, and a first spring is arranged at the bottom of the end of the pin column; the top of the other end of the pin extends out of the lock shell and abuts against the bottom of one end of the lock cylinder assembly of the handle in the handle groove. When the handle is pressed into the handle groove of the base, the handle pushes the pin column to reset, and the convex column of the pin column is buckled with the buckling hook in the hook groove of the lock hook elastic piece.
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Description

Technical Field

[0001] This utility model relates to a handle flat lock, specifically a handle flat lock with an auxiliary pop-out mechanism. Background Technology

[0002] A flat handle lock is a type of door lock with a handle, commonly found on electrical cabinets. These cabinets are typically made of steel and are used to protect the components, requiring this type of lock to prevent the door from being opened unnecessarily. A flat handle lock generally includes a base, handle, pivot, and bolt assembly. The base contains a lock cylinder assembly and a button assembly for locking the handle. Examples include Chinese patent application number 202310437653.5, published on July 14, 2023, entitled "Hidden Handle Flat Lock"; and Chinese patent application number 202420876765.0, authorized on January 7, 2025, entitled "A Sliding Dust Cover for a Flat Lock Handle." The handles of these products and similar products generally rely on only a torsion spring for ejection, resulting in poor ejection performance. Furthermore, the lock cylinder at one end of the handle lacks an auxiliary ejection mechanism. Summary of the Invention

[0003] To overcome the above shortcomings, the purpose of this utility model is to provide a flat handle lock with auxiliary ejection mechanism, thereby solving the technical problem that existing similar products generally rely on only a torsion spring to achieve handle ejection, resulting in unsatisfactory ejection performance, and that the lock cylinder lacks an auxiliary ejection mechanism at one end. This objective is achieved through the following technical solution.

[0004] A flat handle lock with an auxiliary ejection mechanism is disclosed. The handle is positioned within a handle groove on the top of a base. One end of the handle is hinged to one end of a rotating shaft within a rotating hole at one end of the base and equipped with a torsion spring. The other end of the rotating shaft extends out of the base and is connected to an actuator via a rotating screw. A positioning plate is located at the bottom of the rotating hole in the base at the actuator. A lock cylinder assembly is located at the other end of the handle within the handle groove of the base. The lock head at the bottom of the lock cylinder assembly extends out of the handle and is fixed to the lock groove within the base. The key structural design feature is a lock housing within the lock groove of the base. A lock hook spring is located on one side of the lock housing. One end of the lock hook spring is aligned with the lock head of the lock cylinder assembly, and the other end has a hook groove. A protrusion at one end of a pin is positioned within the hook groove of the lock hook spring to engage the hook. A first spring is located at the bottom of this end of the pin. The top of the other end of the pin extends out of the lock housing and abuts against the bottom of one end of the lock cylinder assembly of the handle within the handle groove. When the lock head of the lock cylinder assembly rotates and unlocks from the lock groove within the base, the lock... The lock head of the core assembly pushes the lock hook spring to move towards the hook groove side. The hook groove of the lock hook spring disengages from the hook groove of the pin. Simultaneously, the handle pops out of the handle groove of the base via the torsion spring. At the same time, the handle pops out of the handle groove of the base from left and right via the pin and the first spring. The lock hook spring returns to its original position due to elastic action. When the handle is pressed into the handle groove of the base, the handle pushes the pin to return to its original position. The protrusion of the pin engages with the hook in the hook groove of the lock hook spring, and the pin retracts into the lock case. The lock head of the lock core assembly engages and locks with the lock groove in the base. The aforementioned lock hook spring undergoes displacement change through self-locking elastic interference deformation or the action of the second spring. The protrusion of the pin is either an integrally formed protrusion or a through-inserted pin.

[0005] One end of the groove of the locking hook spring is abutted against the inner wall of the lock case by a second spring, and the locking hook spring is reset by the elastic action of the second spring. The above structure further improves the reset effect of the locking hook spring.

[0006] The pin has a horizontally positioned protrusion that extends laterally into the hook groove of the locking hook spring, with at least one end of the pin extending out of a groove on one side of the lock housing. This structure further improves the stability of the pin's vertical movement.

[0007] The lock case includes a lock case base and a lock case cover. A lock hook spring, a pin, a first spring, a second spring, and a pin are disposed within the lock case formed by the lock case base and the lock case cover. One end of the lock hook spring extends out of the lock case and aligns with the lock head of the lock cylinder assembly, while the top of the pin extends out of the lock case. This structure facilitates the assembly and use of the lock case as a whole.

[0008] The base has symmetrical positioning grooves on both sides of the pivot hole, the shape of which corresponds to the triangular heads protruding on both sides of the bottom of the pivot end of the upper handle. An arc-shaped groove is provided on the inner wall of the handle groove end of the base above the positioning groove end. When the handle pops out, the end of the handle rotates within the arc-shaped groove of the base. This structural design reduces the gap between the handle and the handle groove inside the base, improving the dustproof sealing effect of the handle. This can also be achieved through the hemispherical inner wall of the base at the handle end of the pivot.

[0009] The base has a sealing washer at the top of the handle groove, extending above the groove opening. The top plane of the handle is aligned with the opening plane of the sealing washer. The outer diameter of the handle groove of the base has at least two symmetrically and equidistantly arranged base mounting ears. The sealing mounting ears of the sealing washer are embedded in the grooves of the base mounting ears. This structure further improves the sealing and dustproof performance of the base and handle.

[0010] The handle has a dust cover on the top keyhole of the lock cylinder assembly. The dust cover screw passes through the handle and abuts against the end of the pin below. The above is an embodiment where the dust cover abuts against the pin; it can also be achieved by having the bottom of the handle abut against the pin.

[0011] The actuator is a bolt assembly, a connecting rod assembly, or a bolt-connecting rod assembly. The above describes the specific structure of the actuator, which is configured according to actual needs.

[0012] The protruding end of the pin is equipped with a magnet. When the protruding end of the pin engages with the hook in the groove of the locking hook spring, the magnet corresponds to a Hall sensor inside the lock housing, or the magnet corresponds to a Hall sensor on the outer diameter of the base through a through hole on one side of the base. This allows for easy confirmation of whether the pin has been reset by pressing the handle, and thus confirms whether the handle has retracted into the base, through the interaction between the Hall sensor and the magnet of the pin.

[0013] This utility model has a reasonable and simple structural design, is convenient to produce, assemble and use, has a good concealment effect of the base, with only the handle exposed on the door panel, and has a good sealing and dustproof effect. In particular, the handle is guaranteed to pop out and be used through the dual action of torsion spring and pin. It is suitable for use as a flat lock with an auxiliary pop-out handle, as well as for structural improvements of similar products. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present invention, where the dotted lines represent the internal structure of the base.

[0015] Figure 2 yes Figure 1 A cross-sectional structural diagram.

[0016] Figure 3 yes Figure 1 A schematic diagram of the internal structure of the handle slot at the base, with the handle omitted in the diagram.

[0017] Figure 4 yes Figure 1 A schematic diagram of the bottom structure, omitting the base in the diagram.

[0018] Figure 5 yes Figure 4 A schematic diagram of the structure on the other side.

[0019] Figure 6 yes Figure 4 A schematic diagram of the internal structure of the lock case.

[0020] Figure 7 yes Figure 1 A partial diagram of the exploded structure.

[0021] Attached figures and their names: 1. Base, 101. Positioning groove, 102. Arc groove, 2. Handle, 201. Triangular head, 3. Dust cover, 4. Sealing washer, 5. Lock housing seat, 501. Slide groove, 6. Lock cylinder assembly, 601. Lock head, 7. Lock hook spring, 701. Hook groove, 8. Steel bolt assembly, 9. Dust cover screw, 10. Pin, 11. First spring, 12. Lock housing cover, 13. Second spring, 14. Pin, 15. Positioning plate, 16. Rotating shaft, 17. Torsion spring. Implementation

[0022] The structure and use of this utility model will now be further described with reference to the accompanying drawings. Figures 1-7As shown, the handle 2 of the flat handle lock is located in the handle groove at the top of the base 1. One end of the handle is hinged to one end of the rotating shaft 16 in the rotating shaft hole at one end of the base and is provided with a torsion spring 17. The other end of the rotating shaft in the base extends out and is connected to the actuator through the rotating shaft screw. The bottom opening of the rotating shaft hole of the base at the actuator is provided with a positioning piece 15. The actuator is a steel bolt assembly 8. The other end of the handle in the handle groove of the base is provided with a lock cylinder assembly 6. The lock head 601 at the bottom of the lock cylinder assembly extends out of the handle and is fixed in the lock groove in the base. A lock case is provided in the lock groove inside the base. A lock hook spring 7 is provided on one side inside the lock case. One end of the lock hook spring is aligned with the lock head of the lock cylinder assembly. The other end of the lock hook spring is provided with a hook groove 701. This end of the lock hook spring abuts against the inner wall of the lock case through a second spring 13. A horizontally penetrating pin 14 is provided in the hook groove of the lock hook spring. A hook for locking the pin is provided on one side of the hook groove of the lock hook spring. The pin is fixedly set at one end of the pin 10 inserted into the lock case. A first spring 11 is provided at the bottom of the pin end. The top of the other end of the pin extends out of the lock case and abuts against the bottom of one end of the lock cylinder assembly of the handle in the handle groove. When the lock cylinder assembly's cylinder head rotates and unlocks from the lock groove in the base, the lock cylinder assembly's cylinder head pushes the lock hook spring to move towards the hook groove. The hook groove of the lock hook spring disengages from the hook groove of the pin. Simultaneously, the handle pops out of the handle groove of the base via the torsion spring. At the same time, the handle pops out of the handle groove of the base from the left and right via the pin and the first spring. The lock hook spring resets due to the elastic action of the second spring. When the handle is pressed back into the handle groove of the base, the handle pushes the pin back to reset. The pin of the pin engages with the hook in the hook groove of the lock hook spring. The pin retracts into the lock case, and the lock cylinder assembly's cylinder head engages and locks with the lock groove in the base.

[0023] The aforementioned pin, horizontally positioned, is horizontally inserted into the hook groove of the lock hook spring, with one end of the pin extending out of a sliding groove on one side of the lock housing. The lock housing includes a lock housing base 5 and a lock housing cover 12. The lock hook spring, pin, first spring, second spring 13, and pin are disposed within the lock housing formed by the lock housing base and lock housing cover. One end of the lock hook spring extends out of the lock housing and aligns with the lock head of the lock cylinder assembly, while the top of the pin extends out of the lock housing. The base has symmetrically arranged positioning grooves 101 on both sides of the pivot hole. The shape of the positioning groove corresponds to the triangular heads 201 protruding from both sides of the bottom of one end of the pivot of the upper handle. An arc-shaped groove 102 is provided on the inner wall of the handle groove end of the base above the positioning groove end. When the handle is extended, the end of the handle rotates within the arc-shaped groove of the base.

[0024] The base has a sealing washer 4 extending above the handle groove opening at its top. The top plane of the handle is aligned with the opening plane of the sealing washer. The outer diameter of the handle groove of the base has six symmetrically arranged, equidistant base mounting ears. The sealing mounting ears of the sealing washer are embedded in the grooves of the base mounting ears. The keyhole at the top of the handle's lock cylinder assembly has a dust cover 3. The dust cover screw 9 passes through the handle and abuts against the end of the pin below.

[0025] When in use, turn to open the dust cover, insert the key into the keyhole of the lock cylinder assembly, turn the key, the key will drive the lock head at the bottom of the lock cylinder assembly to rotate, the lock head pushes one end of the lock hook spring, the handle pops out of the base through the action of the torsion spring and the second spring at the bottom of the pin, and turning the handle will drive the steel bolt assembly at the bottom of the base to rotate through the rotating shaft to unlock or lock.

[0026] Based on the above structural features, the above-mentioned actuator can also be a linkage assembly or a bolt linkage assembly. The protrusion or pin end of the above-mentioned pin is provided with a magnet. When the protrusion of the pin is engaged with the hook in the hook groove of the lock hook spring, the magnet corresponds to the Hall sensor in the lock housing, or the magnet passes through the through hole on one side of the base to correspond to the Hall sensor on the outer diameter of the base, thereby realizing the electronic lock method to determine whether the handle has popped out and then reset.

[0027] In summary, this flat handle lock, based on the torsion spring of existing products, adds an auxiliary handle ejection function at the end of the handle. This flat handle lock is particularly suitable for use in charging stations for new energy vehicles, meeting the requirement that the entire lock be concealed within the cabinet while the handle automatically ejects. Currently, there is no solution on the market that addresses both the need for concealed locks with only the handle exposed and the need to ensure stable handle ejection; this solution perfectly resolves these customer pain points.

Claims

1. A flat handle lock with an auxiliary pop-out mechanism, wherein the handle (2) of the flat handle lock is disposed in the handle groove at the top of the base (1), one end of the handle is hinged to one end of a rotating shaft (16) in a rotating shaft hole at one end of the base and is provided with a torsion spring (17), the other end of the rotating shaft in the base extends out and is connected to an actuator through a rotating shaft screw, and the other end of the handle in the handle groove of the base is provided with a lock cylinder assembly (6), and the lock head (601) at the bottom of the lock cylinder assembly extends out of the handle and is fixed in the lock groove in the base; characterized in that The base (1) has a lock housing in the lock groove. A lock hook spring (7) is provided on one side of the lock housing. One end of the lock hook spring is aligned with the lock head (601) of the lock cylinder assembly (6). The other end of the lock hook spring is provided with a hook groove (701). The protrusion of one end of the pin (10) is located in the hook groove of the lock hook spring and hooks it. The bottom of the pin end is provided with a first spring (11). The top of the other end of the pin extends out of the lock housing and abuts against the bottom of one end of the lock cylinder assembly of the handle (2) in the handle groove. When the lock head of the lock cylinder assembly rotates and the base When the lock slot inside is unlocked, the lock head of the lock cylinder assembly pushes the lock hook spring to move to the side of the hook slot. The hook slot of the lock hook spring disengages from the hook slot of the pin. The handle pops out of the handle slot of the base through the torsion spring (17). At the same time, the handle pops out of the handle slot of the base from left and right through the pin and the first spring. The lock hook spring resets through elastic action. When the handle is pressed into the handle slot of the base, the handle pushes the pin to reset. The protrusion of the pin engages with the hook in the hook slot of the lock hook spring. The pin is retracted into the lock shell. The lock head of the lock cylinder assembly engages with the lock slot inside the base and locks tightly.

2. The flat handle lock with auxiliary ejection as described in claim 1, characterized in that... One end of the groove (701) of the lock hook spring (7) abuts against the inner wall of the lock case through the second spring (13), and the lock hook spring is reset by the elastic action of the second spring.

3. The flat handle lock with auxiliary ejection as described in claim 1, characterized in that... The protrusion of the pin (10) is a horizontally arranged pin (14), which is horizontally inserted into the hook groove (701) of the lock hook spring (7), and at least one end of the pin extends out of the slide groove (501) on one side of the lock case.

4. The flat handle lock with auxiliary ejection as described in claim 3, characterized in that... The lock case includes a lock case seat (5) and a lock case cover (12). A lock hook spring (7), a pin (10), a first spring (11), a second spring (13), and a pin (14) are disposed inside the lock case formed by the lock case seat and the lock case cover. One end of the lock hook spring extends out of the lock case and is aligned with the lock head (601) of the lock cylinder assembly (6). The top of the pin extends out of the lock case.

5. The flat handle lock with auxiliary ejection as described in claim 1, characterized in that... The base (1) has symmetrical positioning grooves (101) on both sides of the pivot hole. The shape of the positioning groove corresponds to the triangular head (201) protruding on both sides of the bottom of the pivot (16) of the upper handle (2). The inner wall of the handle groove end of the base has an arc groove (102). When the handle pops out, the end of the handle rotates in the arc groove of the base.

6. The flat handle lock with auxiliary ejection as described in claim 1, characterized in that... The base (1) has a sealing gasket (4) at the top of the handle groove that protrudes above the handle groove. The top plane of the handle (2) is aligned with the ring plane of the sealing gasket. The outer diameter of the handle groove of the base (1) has at least two symmetrical and equidistant protruding base mounting ears. The sealing mounting ears of the sealing gasket are embedded in the groove of the base mounting ears of the base.

7. The flat handle lock with auxiliary ejection as described in claim 1, characterized in that... The top keyhole of the handle (2) lock cylinder assembly (6) is provided with a dust cover (3), and the dust cover screw (9) of the dust cover passes through the handle and abuts against the end of the pin (10) below.

8. The flat handle lock with auxiliary ejection as described in claim 1, characterized in that... The actuator is a bolt assembly (8), a connecting rod assembly, or a bolt-connecting rod assembly.

9. The flat handle lock with auxiliary ejection as described in claim 1, characterized in that... The pin (10) has a magnet at the protruding end. When the protruding end of the pin engages with the hook groove (701) of the locking hook spring (7), the magnet corresponds to the Hall sensor inside the lock case, or the magnet corresponds to the Hall sensor on the outer diameter of the base through the through hole on one side of the base.