Door lock with hidden handle

Abstract

The utility model provides a door lock with a hidden handle, which comprises a lock body part with a lock tongue and a lock cylinder, and a lock panel with a handle, the lock panel comprises an inner panel and an outer panel, the inner panel and the outer panel are fixed through screws, the handle is rotatably connected to the lock panel, and the handle is fixedly connected to the lock body part. A transmission part which is inserted into the lock body part to drive the spring bolt to retract is arranged in the handle, a grip part is formed on one side of a handle connecting point, a pressing part is formed on the other side of the handle connecting point, a moving space for the pressing part to move is arranged on the lock panel, and the grip part tilts outwards under the condition that the pressing part of the handle is pressed. Compared with the prior art, the door lock has the advantages that the pressing portion is arranged at one end of the handle, the holding end of the handle is tilted by pressing the pressing portion, a user can unlock the door conveniently, a groove for containing the lock panel does not need to be formed in a door plate, a groove for a hand to be inserted in does not need to be formed in the surface of the lock panel, and the door lock is convenient to use. The size of the lock panel can be reduced, and installation of the lock panel is also facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of locks, in particular to a door lock with a hidden handle. Background Art

[0002] Currently, most door locks on the market have handles, and the door is opened by rotating the handles. Since the handles are basically protruding, they are prone to bumps or getting caught on clothes. Therefore, hidden door handles are designed to avoid a series of problems caused by the protruding upper handles. In order to facilitate the opening of the door handles, the hidden door handles on the market usually have concave structures on the upper and lower sides of the handles. This design not only affects the appearance, but also requires the shell thickness at the door handle position to be designed to be thicker, which is more expensive. In addition, a deeper installation groove needs to be opened on the door panel during installation, which brings inconvenience to the installation. Utility Model Content

[0003] The technical problem to be solved by the utility model is how to design a hidden door handle to facilitate opening a door lock with the handle.

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

[0005] A hidden handle door lock includes a lock body portion with a lock tongue and a lock core, and a lock panel with a handle. The lock panel includes an inner panel and an outer panel. The inner panel and the outer panel are fixed by screws. The handle is rotatably connected to the lock panel. A transmission portion is provided in the handle, which is inserted into the lock body portion to drive the lock tongue to retract. A grip portion is formed on one side of the handle connection point, and a pressing portion is formed on the other side. An activity space for the pressing portion to move is provided on the lock panel. When the pressing portion of the handle is pressed, the grip portion tilts outward.

[0006] Preferably, the lock body part also includes a sliding part and a shell, the shell is provided with a through groove for the transmission part to pass through and move, the sliding part is provided with a slot for the transmission part of the handle to be inserted, and the transmission part pushes the inner wall of the sliding part slot when the handle rotates, and the sliding part has an unlocked state and a locked state. When the sliding part is in the unlocked state, the sliding part drives the lock tongue to retract, and when the sliding part is in the locked state, the lock tongue extends out of the lock body part, and a reset mechanism is provided between the sliding part and the shell for pushing the sliding part to return to the locked state. When the handle is unlocked and rotated, the transmission part pushes the sliding part to the space between the sliding part and the shell to compress the reset mechanism.

[0007] Preferably, the reset mechanism includes multiple springs, one of which always keeps its two ends respectively abutting the sliding member and the housing, and at least another spring keeps its two ends respectively abutting the sliding member and the housing after the sliding member moves a certain distance.

[0008] Preferably, there is an invalid transmission stroke structure between the sliding member and the lock tongue. During the initial sliding of the sliding member, the sliding member does not produce transmission cooperation with the lock tongue in the invalid transmission stroke. After the sliding member completes the invalid transmission stroke, the sliding member and the lock tongue drive the lock tongue to retract the lock body.

[0009] Preferably, the invalid transmission stroke structure includes a stop protrusion protruding from the surface on the outer wall of the sliding part or the inner wall of the lock tongue, and a groove recessed from the surface on the inner wall of the lock tongue or the outer wall of the sliding part, and the transmission between the two is achieved by the abutment between the stop protrusion and the end wall of the groove, and the movement of the stop protrusion in the groove is an invalid transmission stroke.

[0010] Preferably, the lock core is provided with a core shaft passing through the sliding member, the sliding member is provided with a long groove that is not blocked by the core shaft when the sliding member slides, the core shaft is provided with an abutment, the sliding member is provided with a recessed portion for the abutment to be embedded and move, the abutment has a locked state and an unlocked state, when the abutment is in the locked state, the end of the abutment extends to the range of the movable track of the inner wall of the recessed portion of the sliding member, and when the sliding member slides and drives the lock tongue to retract, it contacts the sliding member to prevent the sliding member from continuing to slide; when the abutment is in the unlocked state, the end of the abutment rotates to one side, and is not affected by the abutment when the sliding member drives the lock tongue to retract.

[0011] Preferably, the recessed portion of the sliding member is open on a side surface, and a limiting portion for limiting excessive rotation of the abutting member is provided on the outer shell.

[0012] Preferably, the outer surface of the pressing portion has an anti-slip structure.

[0013] Preferably, a first magnet is provided in the lock tongue, and a second magnet attracted to the first magnet is provided in a corresponding buckle seat installed in the door frame, and the first magnet and the second magnet are installed with opposite poles when installed.

[0014] Preferably, a shock-absorbing member is provided between the inner wall of the handle and the lock panel, and the shock-absorbing member is provided on the handle or the lock panel.

[0015] The beneficial effect of the present invention is that the present invention provides a pressing portion at one end of the handle, and by pressing the pressing portion, one end of the handle grip is tilted, thereby making it convenient for the user to unlock the door. This design does not require a groove for accommodating the lock panel on the door panel, nor does it require a groove for inserting the hand on the surface of the lock panel. The size of the lock panel can be reduced, and the installation of the lock panel is also convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a state diagram for the use of the utility model;

[0018] Figure 3 for Figure 2 Cross-sectional view in the AA direction;

[0019] Figure 4 This is a schematic structural diagram of the sliding member of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the handle of the utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the reset mechanism of the utility model in the sliding member;

[0022] Figure 7 Schematic diagram of the structure of the upper cover of the shell. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example

[0025] See also Figure 1-Figure 7, shown in the figure is a hidden handle door lock, comprising a lock body portion 100 with a lock tongue 101 and a lock core 102, and a lock panel 200 with a handle 201, the lock panel 200 comprises an inner panel 202 and an outer panel 203, the inner panel 202 and the outer panel 203 are fixed by screws and are installed on the inner and outer surfaces of the door panel 300, a buckle seat 401 is installed on the door frame 400, and the lock tongue 101 is locked in the buckle seat 401 of the door frame 400. It is worth noting that the handle 201 of this embodiment is rotatably connected to the lock panel 200 where it is located. In this embodiment, the handle 201 is movably connected to the lock panel 200 by a pin shaft 204. In this embodiment, the handle 201 rotates horizontally, that is, it rotates perpendicular to the direction of the door panel 300. The handle 201 is provided with a lock that is inserted into the lock body portion 100 to drive the lock tongue 10 1 retracted transmission part 2011, both handles 201 have a transmission part 2011, and a grip part 2012 is formed on one side of the connection point of the handle 201, and a pressing part 2013 is formed on the other side. An activity space for the pressing part 2013 to move is provided on the lock panel 200. When the pressing part 2013 of the handle 201 is pressed, the grip part 2012 tilts outward. When the door needs to be opened (when the lock cylinder 102 is unlocked), the pressing part 2013 of the handle 201 is first pressed, and a rocker structure is formed between the handle 201 and the lock panel 200. After pressing the pressing part 2013, the pressing part 2013 is pressed into the activity space of the lock panel 200, and the grip part 2012 rotates along the rotation point and tilts outward, so that a gap for the hand to be inserted is formed between the grip part 2012 and the lock panel 200, and the hand can be inserted into the gap to open the door.

[0026] The lock body 100 in this embodiment further comprises a sliding member 104 and a housing 103. The housing 103 is provided with a through slot 1031 for the transmission part 2011 to pass through and move. The sliding member 104 is provided with a slot 1041 for the transmission part 2011 of the handle 201 to be inserted. The transmission part 2011 pushes the inner wall of the slot 1041 of the sliding member 104 when the handle 201 rotates. The transmission parts of the two handles are staggered in the slot 1041, and the transmission part of either handle can be driven. The sliding member 104 has an unlocked state and a locked state. When the sliding member 104 is in the unlocked state, the sliding member 104 drives the lock tongue 101 to retract. When the sliding member 104 is in the locked state, the lock tongue 101 extends out of the lock body part 100. A reset mechanism for pushing the sliding member 104 to reset to the locked state is provided between the sliding member 104 and the shell 103. When the handle 201 is unlocked and rotated, the transmission part 2011 pushes the sliding member 104 to compress the reset mechanism between the sliding member 104 and the shell 103.

[0027] In order to prevent the door from being opened directly when the pressing portion 2013 is pressed, which may cause the door to open quickly and hit people or objects outside the door, the reset mechanism in this embodiment is designed to include multiple springs 105, one of which always keeps its two ends respectively against the sliding member 104 and the shell 103, and at least another spring 105 keeps its two ends respectively against the sliding member 104 and the shell 103 after the sliding member 104 moves a certain distance. In this embodiment, two springs 105 of different lengths are designed, and the longer spring 105 always applies elastic force to the sliding member 104, so that the handle 201 is in a non-pressed state. It can maintain a non-protruding state. The other shorter spring 105 will exert elasticity on the sliding member 104 only after the sliding member 104 slides a certain distance after pressing the pressing portion 2013. In this way, when the sliding member 104 abuts against the two springs 105, the sliding member 104 needs to overcome a larger force to continue sliding. Therefore, the force of the finger pressing the pressing portion 2013 is not enough to overcome the elastic force of the two springs 105, and it is necessary to pry the grip portion 2012 to save effort to drive the sliding member 104 to continue sliding. During this period, the lock tongue 101 does not fall out of the buckle seat 401 of the door frame 400, so it will not be unlocked and the door will not be opened. In this embodiment, a mounting groove 1044 for installing two springs is provided on the sliding member 104, and a cutout 1045 is provided on one side of the mounting groove 1044. A pushing portion 10331 extending into the cutout is provided on the outer shell. When the sliding member slides, one end of the spring abuts the pushing portion 10331, and the other end abuts the inner wall of the sliding member mounting groove 1044. In this embodiment, the outer shell 103 includes a base 1032 and an upper cover 1033. The base and the upper cover are assembled with screws, and the base is open at the upper end.

[0028] In order to further prevent the lock tongue 101 from being pulled out when the pressing portion 2013 is pressed, this embodiment has an idle transmission stroke structure between the slider 104 and the lock tongue 101. During the initial sliding period of the slider 104, the slider 104 does not produce transmission cooperation with the lock tongue 101 in the idle transmission stroke. After the slider 104 has completed the idle transmission stroke, the slider 104 and the lock tongue 101 drive the lock tongue 101 to retract into the lock body. The idle transmission stroke structure includes a stopper 1042 protruding from the surface on the outer wall of the slider 104 or the inner wall of the lock tongue 101, and a groove 1011 recessed from the surface on the inner wall of the lock tongue 101 or the outer wall of the slider 104. The stopper 1042 abuts against the end wall of the groove 1011 to achieve transmission between the two. The stopper 1042 moves in the groove 1011 as an idle transmission stroke. The setting of the invalid transmission stroke ensures that the lock tongue 101 will not be driven when the pressing part 2013 is pressed, and further ensures that the grip part 2012 of the handle 201 needs to be moved twice to open the door, so as to ensure that the force of opening the door can be better controlled.

[0029] In order to ensure that the lock core 102 and the anti-lock mechanism can be locked and unlocked smoothly, the lock core 102 of this embodiment is provided with a core shaft 1021 that passes through the sliding member 104. The lock core 102 and the anti-lock mechanism are both existing technologies, and their specific structures are not described in detail here. It is worth noting that a long groove is provided on the sliding member 104 so that it is not blocked by the core shaft 1021 when the sliding member 104 slides. An abutment 1022 is provided on the core shaft 1021, and a recessed portion 1022 is provided on the sliding member 104 for the abutment 1022 to be embedded and moved. 043, the abutment 1022 has a locked state and an unlocked state. When the abutment 1022 is in the locked state, the end of the abutment 1022 extends to the range of the active track of the inner wall of the recessed portion 1043 of the sliding member 104, and when the sliding member 104 slides and drives the lock tongue 101 to retract, it contacts the sliding member 104 to prevent the sliding member 104 from continuing to slide; when the abutment 1022 is in the unlocked state, the end of the abutment rotates to one side, and the sliding member 104 drives the lock tongue 101 to retract without being affected by the abutment 1022.

[0030] In order to control the rotation angle of the abutting member 1022 , in this embodiment, the side of the recessed portion 1043 of the sliding member 104 is opened, and a limiting portion for limiting excessive rotation of the abutting member is provided on the housing 103 .

[0031] In order to facilitate pressing the pressing portion 2013 of the handle 201 and prevent slipping, this embodiment has an anti-slip structure 20131 on the outer surface of the pressing portion 2013. In this embodiment, an indented portion is provided at this position, and dense anti-slip protrusions are provided on the indented portion.

[0032] In order to enable the lock tongue 101 to automatically lock after closing the door, this embodiment provides a first magnet 1012 in the lock tongue 101, and a corresponding second magnet 4011 is provided in the buckle seat 401 installed in the door frame 400, which is attracted to the first magnet 1012. The first magnet 1012 and the second magnet 4011 are installed with opposite poles during installation.

[0033] To prevent the handle 201 from making a loud impact noise against the lock panel 200 when returning to its original position after the user opens the door and releases the handle 201, a shock absorber 205 is provided between the inner wall of the handle 201 and the lock panel 200 in this embodiment. The shock absorber 205 is provided on the handle 201 or the lock panel 200. The shock absorber 205 is a flexible pad such as a silicone pad or a sponge pad, and is connected to the handle 201 or the lock panel 200 by bonding or other connection methods.

Claims

1. A hidden handle door lock, comprising a lock body having a lock tongue and a lock cylinder, and a lock panel having a handle, wherein the lock panel comprises an inner panel and an outer panel, the inner panel and the outer panel being fixed by screws, characterized in that: The handle is rotatably connected to the lock panel where it is located. A transmission part is provided in the handle, which is inserted into the lock body to drive the lock tongue to retract. A grip part is formed on one side of the handle connection point, and a pressing part is formed on the other side. A movable space for the pressing part to move is provided on the lock panel. When the pressing part of the handle is pressed, the grip part tilts outward.

2. A hidden handle door lock according to claim 1, characterized in that: The lock body part also includes a sliding part and a shell. The shell is provided with a through groove for the transmission part to pass through and move. The sliding part is provided with a slot for the transmission part of the handle to be inserted. The transmission part pushes the inner wall of the sliding part slot when the handle rotates. The sliding part has an unlocked state and a locked state. When the sliding part is in the unlocked state, the sliding part drives the lock tongue to retract. When the sliding part is in the locked state, the lock tongue extends out of the lock body part. A reset mechanism for pushing the sliding part to return to the locked state is provided between the sliding part and the shell. When the handle is unlocked and rotated, the transmission part pushes the sliding part to the space between the sliding part and the shell to compress the reset mechanism.

3. A hidden handle door lock as claimed in claim 2, characterized in that: The reset mechanism includes multiple springs, one of which always keeps its two ends respectively abutting the sliding member and the housing, and at least another spring keeps its two ends respectively abutting the sliding member and the housing after the sliding member moves a certain distance.

4. A hidden handle door lock according to claim 2 or 3, characterized in that: There is an invalid transmission stroke structure between the sliding member and the lock tongue. During the initial sliding of the sliding member, the sliding member does not produce transmission cooperation with the lock tongue in the invalid transmission stroke. After the sliding member completes the invalid transmission stroke, the sliding member and the lock tongue drive the lock tongue to retract the lock body.

5. A hidden handle door lock as claimed in claim 4, characterized in that: The invalid transmission stroke structure includes a stop protrusion protruding from the surface on the outer wall of the sliding part or the inner wall of the lock tongue, and a groove recessed from the surface on the inner wall of the lock tongue or the outer wall of the sliding part. The transmission between the two is achieved by the abutment between the stop protrusion and the end wall of the groove, and the movement of the stop protrusion in the groove is an invalid transmission stroke.

6. The hidden handle door lock according to claim 2, characterized in that: The lock core is provided with a core shaft that passes through the sliding member, and the sliding member is provided with a long groove that is not blocked by the core shaft when the sliding member slides. The core shaft is provided with an abutment, and the sliding member is provided with a recessed portion for the abutment to be embedded and move. The abutment has a locked state and an unlocked state. When the abutment is in the locked state, the end of the abutment extends to the range of the movable track of the inner wall of the recessed portion of the sliding member, and when the sliding member slides and drives the lock tongue to retract, it contacts the sliding member to prevent the sliding member from continuing to slide; when the abutment is in the unlocked state, the end of the abutment rotates to one side, and is not affected by the abutment when the sliding member drives the lock tongue to retract.

7. A hidden handle door lock according to claim 6, characterized in that: The side surface of the recessed portion of the sliding member is open, and a limiting portion for limiting excessive rotation of the abutting member is provided on the outer shell.

8. The hidden handle door lock according to claim 1, characterized in that: The outer surface of the pressing portion has an anti-slip structure.

9. The hidden handle door lock according to claim 1, characterized in that: A first magnet is provided in the lock tongue, and a second magnet attracted to the first magnet is provided in a corresponding buckle seat installed in the door frame. The first magnet and the second magnet are installed with opposite poles when installed.

10. The hidden handle door lock according to claim 1, characterized in that: A shock-absorbing component is provided between the inner wall of the handle and the lock panel, and the shock-absorbing component is provided on the handle or the lock panel.

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