Cabinet door lock

Abstract

The utility model relates to the technical field of locks. According to the technical scheme, the cabinet door lock comprises a lock shell, a handle and a lock catch mechanism, a handle groove is formed in the lock shell, the handle is arranged in the handle groove, one end of the handle is installed on the lock shell in a pivoted mode, the other end of the handle is a bouncing end, and the bouncing end is provided with a lock catch part. The lock catch mechanism comprises a lock catch piece in unlocking / locking fit with the lock catch part and an unlocking key for driving the lock catch piece and the lock catch part to be released and unlocked, the handle is provided with a jacking mechanism, the jacking mechanism comprises a jacking piece which is limited to move on the lock shell and located at the bottom of the bouncing end of the handle, and the jacking piece is in pushing fit with the bottom of the handle. And the unlocking key drives the jacking piece to push the handle after driving the locking piece to unlock. The handle lifting device has the advantage that the handle is smoothly opened.

Description

Technical Field

[0001] The utility model relates to the technical field of locks. Background Art

[0002] To unlock a cabinet door lock, the handle is unlocked by pressing an unlocking key (such as a push button or button) to disengage the handle. The handle then automatically pops out of the handle slot in the lock housing, driven by a torsion spring. However, due to the stress between the handle and the lock housing, the handle may not pop open. Summary of the Invention

[0003] The purpose of the invention of the utility model is to overcome the defects of the prior art and provide a cabinet door lock that actively lifts the handle.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A cabinet door lock comprises a lock shell, a handle and a lock mechanism, wherein the lock shell is provided with a handle groove, the handle is arranged in the handle groove, one end of the handle is pivotally mounted on the lock shell, and the other end of the handle is a pop-up end, the pop-up end is provided with a lock portion, the lock mechanism comprises a lock member that cooperates with the lock portion to unlock / lock, and an unlocking key that drives the lock member to disengage and unlock from the lock portion, and is characterized in that: the handle is provided with a supporting mechanism, the supporting mechanism comprises a supporting member that is configured to limit movement on the lock shell and is located at the bottom of the pop-up end of the handle, the supporting member cooperates with the bottom of the handle to push, and the unlocking key drives the supporting member to push the handle after driving the lock member to unlock.

[0006] Preferably, the supporting member is connected to a pushing spring, and the unlocking key cooperates with the supporting member to push the supporting member. The supporting member can be pushed and moved by the handle buckled into the handle groove and drive the pushing spring to store energy. The supporting member is driven by the pushing spring to contact the bottom of the handle.

[0007] Preferably, the supporting member is pivotally mounted on the lock housing, and the rotation direction of the supporting member corresponds to the direction in which the handle enters and exits the handle slot.

[0008] Preferably, the unlocking key is a button configured to be limited to slide along the depth direction of the handle groove on the lock housing, and the button is equipped with a button return spring that drives the button to bounce up.

[0009] Preferably, the supporting member and the pushing portion of the unlocking key abut against a stopper, thereby limiting the extreme position of the supporting member in the rotation direction driven by the pushing spring.

[0010] Preferably, the lock shell includes a base with a handle groove formed therein, a mounting cavity connected to the handle groove is provided at the bottom of the base, the bottom port of the mounting cavity is covered with a cover shell, the mounting cavity has a button positioning hole cavity and a lock hook sliding guide groove, the unlocking key slides and fits in the button positioning hole cavity, the lock catch part includes a base slidingly fitting in the lock hook sliding guide groove, the base is provided with a hook arm extending into the handle groove and locking with the lock catch part, a limiting bottom plate is provided in the mounting cavity, the limiting bottom plate limits the base and the unlocking part in the mounting cavity, one end of the button return spring is supported on the limiting bottom plate, and the other end of the button return spring abuts on the unlocking key, a lock hook spring is provided between the base and the limiting bottom plate to drive the hook arm to lock with the lock catch part, a lock core hole seat is provided on the side of the mounting cavity, a lock core is installed on the lock core hole seat, a lock core cam is provided at the bottom end of the lock core, and the unlocking key is provided with a locking block that locks / unlocks with the lock core cam.

[0011] By adopting the above technical solution, after the handle is unlocked, the unlocking key simultaneously drives the supporting member to apply a supporting force to the handle, thereby achieving smooth opening of the handle; and the supporting member cooperates with the pushing spring, which provides a spring auxiliary force to pop the handle out of the handle slot, thereby achieving a better assisting effect of the handle.

[0012] The present invention will be further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a diagram of the handle of the cabinet door lock of the utility model in the open state;

[0014] Figure 2 This is a diagram of the handle of the cabinet door lock of the present invention in a closed state;

[0015] Figure 3 for Figure 2 The cross-sectional view taken along line AA;

[0016] Figure 4 This is a diagram of the cabinet door lock of the utility model in the initial state after being unlocked and held up;

[0017] Figure 5 This is a diagram of the handle of the cabinet door lock of the utility model in the open state;

[0018] Figure 6 This is a diagram of the cabinet door lock with the rear cover opened. DETAILED DESCRIPTION

[0019] See attached Figures 1 to 6The utility model discloses a cabinet door lock, including a lock shell 1, a handle 2 and a lock mechanism. The lock shell 1 is provided with a handle groove 11, and the handle 2 is arranged in the handle groove 11. One end of the handle 2 is pivotally mounted on the lock shell 1 through a steel bolt assembly, and the other end of the handle 2 is a pop-up end 21. The pop-up end 21 is provided with a lock portion 22. The lock mechanism includes a lock member 4 that cooperates with the lock portion 22 to unlock / lock, and an unlocking key 3 that drives the lock member 4 to disengage and unlock from the lock portion 22. The unlocking key 3 can be a knob, a button, a push button, etc. The handle 2 is provided with a supporting mechanism, which includes a supporting member 5 that is configured to limit movement on the lock shell 1 and is located at the bottom of the pop-up end 21 of the handle 2. The supporting member 5 is matched with the bottom of the handle 2 to push. After the unlocking key 3 drives the lock member 4 to unlock, it drives the supporting member 5 to push the handle 2. When the unlocking button 3 is operated, the unlocking button 3 first drives the locking member 4 to unlock the handle 2, and then drives the lifting member 5 to apply a lifting force to the handle 2, thereby smoothly opening the handle 2. In addition to the function of the handle 2 popping up, a handle lifting mechanism is added to avoid the risk of the handle 2 getting stuck in the handle slot 11.

[0020] Furthermore, the supporting member 5 is connected to a push spring 6. The supporting member 5 has a driven portion 51 corresponding to the travel of the unlocking button 3. The unlocking button 3 is provided with a push portion 31. The unlocking button 3 pushes against the driven portion 51 of the supporting member 5 via the push portion 31. The supporting member 5 can be pressed by the handle 2 inserted into the handle slot 11, driving the push spring 6 to store energy. Driven by the push spring 6, the supporting member 5 contacts the bottom of the handle 2. In other words, the push spring 6 provides a spring-assisted force that pushes the handle 2 out of the handle slot 11, further improving the reliability of opening the handle 2. The push spring also stabilizes the supporting member in its position. For example, when the handle presses down on the supporting member, the supporting member presses against the handle under the push spring's force. After the handle is released, the supporting member, under the force of the push spring, cooperates with the corresponding position-limiting structure to maintain the supporting member in the position for the handle to press against. Furthermore, the unlocking button and the supporting member can employ a push-to-pull mechanism.

[0021] As an embodiment of the present invention, the supporting member 5 is pivotally mounted on the lock housing 1, and the rotation direction of the supporting member 5 corresponds to the direction in which the handle 2 enters and exits the handle slot 11. The supporting member is easy to install and can be reliably matched with the handle. The pushing spring preferably adopts a torsion spring design to achieve a compact structure. Among them, the position limiting structure of the rotating supporting member 5 is the position angle position limiting of the rotating component, and the concave and convex stop structure at the rotation position commonly used in the prior art can be adopted; in this specific embodiment, the supporting member 5 and the pushing portion 31 of the unlocking key 3 abut against the stop to achieve position limiting of the supporting member (see attached Figure 1 and attached Figure 5 , the handle 2 pops out of the handle slot 11).

[0022] The unlocking key 3 is a button configured to be limited to slide along the depth direction of the handle slot 11 on the lock housing 1 , and the button is equipped with a button return spring 7 that drives the button to bounce up.

[0023] In this specific embodiment, the lock shell 1 includes a base 1-1 with a handle groove 11 formed therein, a mounting cavity connected to the handle groove 11 is provided at the bottom of the base 1-1, and a cover shell 1-2 is provided on the bottom port of the mounting cavity. The mounting cavity has a button positioning hole cavity and a lock hook sliding guide groove, and the unlocking key 3 slides in the button positioning hole cavity, and the lock catch 4 includes a base 41 that slides in the lock hook sliding guide groove, and a hook arm 42 is provided on the base 41 that extends into the handle groove 11 and locks with the lock catch 22. A limiting bottom plate 1-3 is provided in the mounting cavity, and the limiting bottom plate 1-3 sets the base 41 and the unlocking key in a position. The lock element 3 is confined within the mounting cavity. One end of a button return spring 7 is supported on the limiting base plate 1-3, and the other end of the button return spring 7 abuts against the unlocking button 3. A lock hook spring 8 is provided between the base 41 and the limiting base plate 1-3, driving the hook arm 42 to lock onto the locking portion 22. A lock core hole seat is provided on the side of the mounting cavity, on which a lock core 9 is mounted. A lock core cam 91 is provided at the bottom of the lock core. The unlocking button 3 is provided with a locking block 32 that cooperates with the lock core cam 91 to lock / unlock. When the lock core cam rotates to the bottom of the locking block, the unlocking button cannot be pressed to unlock. It has the advantages of compact structure and easy installation. An unlocking pressing block 33 is provided at the bottom of the button, and a pushing ramp surface 411 is provided on the base 41 of the lock element 4. When the button is pressed, the unlocking pressing block 33 on the button abuts against the pushing ramp surface 411, thereby pushing the lock element 4 to move and unlock.

[0024] The above embodiments are only used to illustrate the present invention and are not intended to limit the present invention. Under the guidance of the present invention, those skilled in the art may make corresponding modifications, such as the supporting member may be sliding, or the supporting member may be linked with the unlocking key via a linkage member, so that the unlocking key drives the supporting member; or the unlocking key may be a push button design, or the unlocking key may be a knob, such as the rotation of the lock cylinder; or the supporting key may be directly fixed to the unlocking key, etc.; therefore, all equivalent technical solutions fall within the scope of protection of the present invention.

Claims

1. A cabinet door lock, comprising a lock housing, a handle, and a latch mechanism, wherein the lock housing is provided with a handle slot, the handle being disposed in the handle slot, one end of the handle being pivotally mounted on the lock housing, the other end of the handle being a spring-loaded end, the spring-loaded end being provided with a latch portion, the latch mechanism comprising a latch member that engages with the latch portion to unlock / lock, and an unlocking key that drives the latch member to disengage and unlock the latch portion, the characteristics of which are: The handle is equipped with a supporting mechanism, which includes a supporting member configured to limit movement on the lock shell and located at the bottom of the pop-up end of the handle. The supporting member cooperates with the bottom of the handle to push. After the unlocking key drives the lock member to unlock, it drives the supporting member to push the handle.

2. The cabinet door lock according to claim 1, characterized in that: described The supporting member is connected to a pushing spring, and the supporting member has a pushed portion corresponding to the active stroke of the unlocking key. The unlocking key is provided with a pushing portion, and the unlocking key pushes and cooperates with the pushed portion of the supporting member through the pushing portion. The supporting member can be pushed and moved by the handle buckled into the handle groove and drive the pushing spring to store energy. The supporting member is driven by the pushing spring to contact the bottom of the handle.

3. The cabinet door lock according to claim 2, characterized in that: The supporting member is pivotally mounted on the lock housing, and the rotation direction of the supporting member corresponds to the direction in which the handle enters and exits the handle slot.

4. The cabinet door lock according to claim 3, characterized in that: The unlocking key is a button configured to be limited to slide along the depth direction of the handle groove on the lock housing, and the button is equipped with a button return spring that drives the button to bounce up.

5. The cabinet door lock according to claim 4, characterized in that: The supporting member and the pushing portion of the unlocking key abut against the stopper, thereby limiting the extreme position of the supporting member in the rotation direction driven by the pushing spring.

6. The cabinet door lock according to claim 4, characterized in that: The lock shell includes a base with a handle groove formed therein, a mounting cavity connected to the handle groove is provided at the bottom of the base, the bottom port of the mounting cavity is covered with a cover shell, the mounting cavity has a button positioning hole cavity and a lock hook sliding guide groove, the unlocking key slides and fits in the button positioning hole cavity, the lock catch part includes a base slidingly fitting in the lock hook sliding guide groove, the base is provided with a hook arm extending into the handle groove and locking with the lock catch part, a limiting bottom plate is provided in the mounting cavity, the limiting bottom plate limits the base and the unlocking part in the mounting cavity, one end of the button return spring is supported on the limiting bottom plate, and the other end of the button return spring abuts on the unlocking key, a lock hook spring is provided between the base and the limiting bottom plate to drive the hook arm to lock with the lock catch part, and a lock core hole seat is provided on the side of the mounting cavity, a lock core is installed on the lock core hole seat, and a lock core cam is provided at the bottom end of the lock core. The unlocking key is provided with a locking block that locks / unlocks with the lock core cam.

Images