Handle device and door lock

Abstract

The utility model discloses a handle device and a door lock. The handle device comprises a handle, a handle shaft, a square shaft sleeve and a first elastic piece. One end of the handle is in transmission connection with the handle shaft, the square shaft sleeve is used for being connected with a lock body arranged on a door, the first elastic piece is arranged between the handle shaft and the square shaft sleeve, and the handle can drive the handle shaft to be switched from a first position to a second position under the action of axial external force; at the first position, the first elastic piece is in an undeformed state, and the handle shaft and the square shaft sleeve are separated from each other; at the second position, the handle shaft abuts against the first elastic piece, the first elastic piece is in a compressed state, and the handle shaft is in transmission connection with the square shaft sleeve. Unlocking can be achieved only when the handle is pushed and rotated at the same time, the function of preventing the cat eye from being unlocked is achieved, and keys, buttons and the like do not need to be arranged on the exposed face; the handle shaft can automatically recover to the first position where unlocking cannot be achieved under the elastic force effect of the first elastic piece, the cat eye prevention function does not need to be manually controlled to be started, and the automation degree is high.

Description

Technical Field

[0001] This utility model relates to the field of door lock technology, and in particular to a handle device and a door lock. Background Technology

[0002] The peephole on a security door presents a security hazard. Someone could use the peephole to insert tools into the room and quickly open the door by pressing down the interior handle. Current technologies for door locks with anti-peephole unlocking functions typically involve a button or similar actuator on the exposed surface of the handle or lock face. This actuator controls the opening and closing of the anti-peephole unlocking function. However, these exposed buttons and actuators affect the overall aesthetics of the lock. Secondly, these actuators require complex clutch mechanisms to control the anti-peephole unlocking function, necessitating additional materials, resulting in a relatively complex structure and higher cost. Thirdly, users must manually operate the actuator after each opening or closing to activate the anti-peephole function, leading to low automation. Often, users forget to activate the anti-peephole function, rendering it ineffective. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an improved handle device and door lock, addressing at least one deficiency mentioned in the background art.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: a handle device is provided, which includes a handle, a handle shaft, a square shaft sleeve, and a first elastic element; one end of the handle is operatively connected to the handle shaft, the square shaft sleeve is used to connect to a lock body provided on a door, the first elastic element is disposed between the handle shaft and the square shaft sleeve, and the handle can drive the handle shaft to change from a first position to a second position under the action of an axial external force; in the first position, the first elastic element is in an undeformed state, and the handle shaft and the square shaft sleeve are separated from each other; in the second position, the handle shaft and the first elastic element abut against each other, the first elastic element is in a compressed state, and the handle shaft and the square shaft sleeve are operatively connected.

[0005] In some embodiments, the square bushing is provided with a first connecting portion, and the handle shaft is provided with a second connecting portion. The first connecting portion is one of a protrusion and a groove, and the second connecting portion is the other of a protrusion and a groove. In the first position, the first connecting portion and the second connecting portion are separated from each other. In the second position, the first connecting portion and the second connecting portion are engaged and connected.

[0006] In some embodiments, the handle shaft has an annular boss at one end near the square bushing, and the annular boss has a plurality of grooves spaced apart circumferentially; the outer circumferential surface of the square bushing has a plurality of protrusions spaced apart circumferentially; in the first position, the grooves and the protrusions are separated from each other; in the second position, the grooves and the protrusions are fitted together in a corresponding manner.

[0007] In some embodiments, the square bushing includes a first portion and a second portion connected axially, the first portion having a larger cross-sectional dimension than the second portion, the first portion being used to connect to a lock body disposed on a door; the handle shaft having a first through hole extending axially, the second portion extending at least partially into the first through hole, and the cross-sectional dimension of the second portion being smaller than the cross-sectional dimension of the first through hole; the first elastic element being disposed around the second portion, and disposed between the surface of the first portion facing the handle shaft and the surface of the handle shaft facing the first portion.

[0008] In some embodiments, the handle device further includes a lock housing, the lock housing having a second through hole extending axially, the square bushing being at least partially located on one side of the second through hole axially, and the handle being located on the other side of the second through hole axially; the handle shaft includes a shaft body and a limiting portion connected to the shaft body and extending laterally, the shaft body passing through the second through hole, and the limiting portion abutting against the lock housing.

[0009] In some embodiments, the handle device further includes a second elastic element connected between the lock housing and the limiting portion.

[0010] In some embodiments, the handle device further includes a panel disposed on the side of the lock housing facing the handle.

[0011] In some embodiments, the handle device further includes a liner plate disposed on the side of the lock housing facing the square shaft sleeve. The liner plate has a third through hole through which the square shaft sleeve passes. The maximum cross-sectional dimension of the liner plate is greater than the maximum cross-sectional dimension of the handle shaft.

[0012] In some embodiments, the handle includes a handle body and a handle cover, the handle body and the handle shaft are connected by a drive connection, the handle cover is connected to the side of the handle body opposite to the handle shaft, and the handle body and the handle cover are made of different materials.

[0013] This utility model also provides a door lock, which includes a handle device as described in any of the above-mentioned embodiments and a lock body connected to the handle device.

[0014] This utility model has at least the following beneficial effects: The handle device of this utility model, because the handle shaft and the square shaft sleeve are separated in the first position, and can only be connected in the second position, allows one end of the handle to be connected to the handle shaft. The handle can only drive the handle shaft from the first position (unlockable) to the second position (lockable) under axial external force. That is, the lock can only be opened by simultaneously pushing and turning the handle; it cannot be opened by simply turning the handle, thus preventing peephole unlocking or preventing children, pets, etc., from accidentally opening the door. Therefore, there is no need to set a button or other driving element on the exposed surface of the handle or lock, and it does not affect the overall aesthetics of the door lock; the structure is simple, requires no additional materials, and has a low cost; because a first elastic element is provided between the handle shaft and the square shaft sleeve, the handle shaft can automatically return to the first position (unlockable) under the elastic force of the first elastic element, eliminating the need for manual operation of the anti-peephole function and achieving a high degree of automation. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the following will further describe this utility model in conjunction with the accompanying drawings and embodiments. In the drawings:

[0016] Figure 1 This is a cross-sectional structural schematic diagram of the handle device in some embodiments of this utility model;

[0017] Figure 2 This is an exploded structural diagram of the handle device in some embodiments of this utility model;

[0018] Figure 3 yes Figure 2 A magnified schematic diagram of a local structure. Detailed Implementation

[0019] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or component referred to must have a specific orientation; therefore, they should not be construed as limitations on this utility model.

[0020] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0021] In the following description, specific details such as particular system structures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0022] It should be noted that the "axial direction" mentioned in the text refers to... Figure 1 and Figure 2 The axis is in the Y direction. The term "lateral" as used in this text can refer to a direction perpendicular to the axis; for details, please refer to [reference needed]. Figure 2 The X direction in the equation.

[0023] In some embodiments, the present invention provides a door lock, which includes a handle device and a lock body (not shown) connected to the handle device. The lock body is disposed on the door. The lock body can switch between an unlocked state and a locked state under the actuation of the door lock including the handle device.

[0024] Please see Figures 1 to 3In some embodiments, the handle device includes at least a handle 1, a handle shaft 2, a square bushing 3, and a first elastic element 4. The handle 1 is generally L-shaped, with two opposing ends extending along the L-shaped contour. One end of the handle 1 is drively connected to the handle shaft 2. When a person presses the handle shaft 2, the handle shaft 2 is simultaneously driven to rotate. The square bushing 3 is used to connect to a lock body mounted on a door. Specifically, the square bushing 3 has a square hole 30, which can be adapted to connect with the lock body. The first elastic element 4 is disposed between the handle shaft 2 and the square bushing 3, allowing the handle 1 to drive the handle shaft 2 from a first position to a second position under axial external force.

[0025] like Figure 1 As shown, in the first position, the handle 1 is not subjected to external force in the axial direction, but the handle 1 can rotate around the axis Y; at this time, the first elastic element 4 is in an undeformed state (that is, the first elastic element 4 is not subjected to external force, and its axial length remains in the initial state at the factory), and the handle shaft 2 and the square bushing 3 are separated from each other. At this time, when the user presses down on the handle 1, the handle 1 and the handle shaft 2 rotate freely relative to the square bushing 3, and cannot drive the square bushing 3 to rotate, thus cannot drive the lock body. At this time, no matter how the handle 1 is rotated, it cannot be unlocked.

[0026] The user pushes handle 1 axially (i.e., applies an axial force to handle 1), moving it to a second position (not shown). In the second position, handle shaft 2 and the first elastic element 4 abut against each other, meaning handle shaft 2 compresses the first elastic element 4 axially. At this point, handle shaft 2 and square sleeve 3 are connected, and rotation of handle shaft 2 drives square sleeve 3 to rotate. When the user presses down on handle 1, handle 1 and handle shaft 2 drive square sleeve 3 to rotate, which in turn rotates the lock body, unlocking the lock.

[0027] Because the first elastic element 4 is compressed and stores elastic potential energy, in the second position, the user only needs to release the handle 1 axially. When the handle shaft 2 is not subjected to axial force, it will automatically move to the first position under the action of the elastic force of the first elastic element 4, and the first elastic element 4 will automatically return to the undeformed state.

[0028] In summary, the handle device of this utility model, because the handle shaft 2 and the square shaft sleeve 3 are separated in the first position, and can only be connected in the second position, with one end of the handle 1 connected to the handle shaft 2, allows the handle 1 to drive the handle shaft 2 from the first position where it cannot be unlocked to the second position where it can be unlocked only under the action of axial external force. That is, the door can only be unlocked when the handle 1 is pushed and rotated simultaneously; it cannot be unlocked when the handle 1 is rotated alone. This serves to prevent unlocking through the peephole or to prevent children, pets, etc., from accidentally opening the door. Thus, there is no need to set a button or other driving element on the exposed surface of the handle 1 or the lock face, which does not affect the overall aesthetics of the door lock; the structure is simple, requires no additional materials, and has a low cost; because a first elastic element 4 is provided between the handle shaft 2 and the square shaft sleeve 3, the handle shaft 2 can automatically return to the first position where it cannot be unlocked under the elastic force of the first elastic element 4, eliminating the need for manual operation to activate the anti-peephole function, resulting in a high degree of automation.

[0029] Please see Figures 1 to 3 In some embodiments, the square sleeve 3 has a first connecting portion 51, and the handle shaft 2 has a second connecting portion 52. The first connecting portion 51 is either a protrusion or a groove, and the second connecting portion 52 is either a protrusion or a groove. That is, in one embodiment, the first connecting portion 51 is a protrusion and the second connecting portion 52 is a groove; in another embodiment, the first connecting portion 51 is a groove and the second connecting portion 52 is a protrusion. In the first position, the first connecting portion 51 and the second connecting portion 52 are separated from each other, and the handle shaft 2 and the square sleeve 3 can rotate relative to each other. At this time, pressing down the handle 1 results in free rotation, and the lock body cannot be driven to open. In the second position, the first connecting portion 51 and the second connecting portion 52 are engaged and connected. The handle shaft 2 and the square sleeve 3 are fixed together by the engagement of the first connecting portion 51 and the second connecting portion 52, and there is no relative rotation between them. The rotation of the handle shaft 2 will drive the square sleeve 3 to rotate together, thereby unlocking.

[0030] Please see Figure 2 and Figure 3 In some embodiments, the handle shaft 2 has an annular boss 53 near the end of the square bushing 3, and the annular boss 53 has a plurality of circumferentially spaced grooves, which serve as second connecting portions 52. The outer circumferential surface of the square bushing 3 has a plurality of circumferentially spaced protrusions, which serve as first connecting portions 51. In a first position, the grooves and protrusions are separated from each other. In a second position, the grooves and protrusions are fitted together in a corresponding manner. Alternatively, in other embodiments, the first connecting portion 51 may also be located at other positions on the square bushing 3, and the second connecting portion 52 may also be located at other positions on the handle shaft 2.

[0031] Please see Figures 1 to 3In some embodiments, the square bushing 3 includes a first portion 31 and a second portion 32 connected axially. The cross-sectional dimension of the first portion 31 is larger than that of the second portion 32. The "cross-section" refers to a cross-section made in the transverse direction, which can be perpendicular to the axial direction. The first portion 31 and the second portion 32 form a stepped structure due to the difference in their cross-sectional dimensions. The first portion 31 is used to connect to a lock body mounted on a door. Specifically, a square hole 30 is provided at the end of the first portion 31 away from the second portion 32, which can be adapted to connect with the lock body. The handle shaft 2 is provided with a first through hole 20 extending axially. The second portion 32 extends entirely or partially into the first through hole 20, leaving a space between the first portion 31 and the handle shaft 2 for placing a first elastic member 4. The first elastic member 4 is disposed on the periphery of the second portion 32 and connects the surface of the first portion 31 facing the handle shaft 2 and the surface of the handle shaft 2 facing the first portion 31. Furthermore, the cross-sectional dimension of the second part 32 is smaller than that of the first through hole 20, so that there is a clearance fit between the second part 32 and the first through hole 20, and there is no contact between the handle shaft 2 and the second part 32. The first connecting part 51 is located on the first part 31 of the square shaft sleeve 3. The first elastic element 4 can be a spring, and the extension and retraction direction of the first elastic element 4 is consistent with the axial direction.

[0032] Please see Figures 1 to 3 In some embodiments, the handle device further includes a lock housing 6, which has a second through hole 60 extending axially, and part or all of the square bushing 3 is located on one side of the second through hole 60 axially (see reference). Figure 1 (Left side of the second through hole 60), handle 1 is located on the other side of the second through hole 60 axially (refer to) Figure 1 (Right side of the second through hole 60). The handle shaft 2 includes a shaft body 21 and a limiting part 22 connected to the shaft body 21 and extending laterally. The shaft body 21 passes through the second through hole 60, and the limiting part 22 abuts against the lock housing 6, thereby limiting the axial displacement of the handle shaft 2 towards the handle 1. Under the thrust of the handle 1, the handle shaft 2 moves a certain distance axially towards the square bushing 3 to reach the second position; at the same time, the axial displacement of the handle shaft 2 towards the handle 1 is limited by the abutment between the limiting part 22 and the lock housing 6, preventing the handle shaft 2 from disengaging from the lock housing 6 axially towards the handle 1.

[0033] Please see Figure 1 and Figure 2In some embodiments, the handle device further includes a second elastic element 8, which is connected between the lock housing 6 and the limiting part 22. The second elastic element 8 can be a torsion spring. The second elastic element 8 is used to automatically reset after the handle 1 is rotated. Specifically, when the user presses down on the handle 1, it drives the handle shaft 2 to rotate around the Y-axis, and the second elastic element 8 deforms under torque, storing elastic potential energy; when the user releases the handle 1, the second elastic element 8 automatically resets, driving the handle shaft 2 to rotate in the opposite direction to the initial position. The first elastic element 4 and the second elastic element 8 provide two automatic reset functions in different directions for the handle 1, eliminating the need for manual operation to reset the handle 1, resulting in a high degree of automation and greater convenience in use.

[0034] Please see Figure 1 and Figure 2 In some embodiments, the handle device further includes a panel 71 and a liner 72. The panel 71 is disposed on the side of the lock housing 6 facing the handle 1. The liner 72 is disposed on the side of the lock housing 6 facing the square bushing 3. That is, the panel 71 and the liner 72 are respectively disposed on opposite sides of the lock housing 6 along the axial direction. The panel 71 can serve as a decorative panel 71, and the panel 71 and the lock housing 6 can be made of different materials. For example, the panel 71 can be made of a lower-cost material such as plastic, which is beneficial for cost savings. The liner 72 has a third through hole 73, through which the square bushing 3 passes. The third through hole 73 just abuts against the first connecting portion 51 on the square bushing 3. The first connecting portion 51 is located on the side of the third through hole 73 near the handle shaft 2, that is, on the inner side of the handle device (that is, the first connecting portion 51 is not exposed to the naked eye). The maximum cross-sectional dimension of the liner 72 is larger than the maximum cross-sectional dimension of the handle shaft 2, therefore, there must be an area on the liner 72 that blocks the path of the handle shaft 2 along the axial direction near the square bushing 3. Therefore, the surface of the liner 72 facing the handle shaft 2 can be used to limit the axial displacement of the handle shaft 2 towards the square bushing 3. As the handle shaft 2 gradually approaches the square bushing 3 axially, the handle shaft 2 will eventually abut against the surface of the liner 72 facing the handle shaft 2. When the handle shaft 2 abuts against the surface of the liner 72 facing the handle shaft 2, the second connecting part 52 on the handle shaft 2 and the first connecting part 51 on the square bushing 3 can be completely fitted together.

[0035] Please see Figure 1 and Figure 2 In some embodiments, the handle 1 includes a handle body 12 and a handle cover 11, with the handle body 12 and handle shaft 2 being drively connected. Specifically, the handle body 12 has a mounting hole at one end near the handle shaft 2, and the shaft body 21 of the handle shaft 2 is fitted into the mounting hole. The handle cover 11 is connected to the side of the handle body 12 facing away from the handle shaft 2. The handle body 12 and the handle cover 11 are made of different materials. Therefore, the handle cover 11 can be made of lower-cost materials such as plastic, which helps to save costs.

[0036] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.

Claims

1. A handle device, characterized in that, It includes a handle (1), a handle shaft (2), a square shaft sleeve (3), and a first elastic element (4); One end of the handle (1) is connected to the handle shaft (2) for transmission. The square shaft sleeve (3) is used to connect the lock body provided on the door. The first elastic element (4) is provided between the handle shaft (2) and the square shaft sleeve (3). Under the action of axial external force, the handle (1) can drive the handle shaft (2) to change from the first position to the second position. In the first position, the first elastic element (4) is in an undeformed state, and the handle shaft (2) and the square bushing (3) are separated from each other; in the second position, the handle shaft (2) and the first elastic element (4) abut against each other, the first elastic element (4) is in a compressed state, and the handle shaft (2) and the square bushing (3) are connected in a transmission.

2. The handle device according to claim 1, characterized in that, The square bushing (3) is provided with a first connecting part (51), and the handle shaft (2) is provided with a second connecting part (52). The first connecting part (51) is one of a protrusion and a groove, and the second connecting part (52) is the other of a protrusion and a groove. In the first position, the first connecting part (51) and the second connecting part (52) are separated from each other; in the second position, the first connecting part (51) and the second connecting part (52) are engaged and connected.

3. The handle device according to claim 2, characterized in that, The handle shaft (2) is provided with an annular boss (53) at one end near the square shaft sleeve (3), and the annular boss (53) is provided with a plurality of grooves spaced apart in the circumferential direction; the outer circumferential surface of the square shaft sleeve (3) is provided with a plurality of protrusions spaced apart in the circumferential direction. In the first position, the groove and the protrusion are separated from each other; in the second position, the groove and the protrusion are fitted together in a one-to-one correspondence.

4. The handle device according to claim 1, characterized in that, The square bushing (3) includes a first part (31) and a second part (32) connected along the axial direction. The cross-sectional dimension of the first part (31) is larger than that of the second part (32). The first part (31) is used to connect to the lock body provided on the door. The handle shaft (2) is provided with a first through hole (20) extending through the axial direction, the second part (32) extends at least partially into the first through hole (20), and the cross-sectional dimension of the second part (32) is smaller than the cross-sectional dimension of the first through hole (20); The first elastic element (4) is disposed on the periphery of the second part (32) and between the surface of the first part (31) facing the handle shaft (2) and the surface of the handle shaft (2) facing the first part (31).

5. The handle device according to claim 1, characterized in that, The handle device also includes a lock housing (6), which has a second through hole (60) extending along the axial direction. The square bushing (3) is at least partially located on one side of the second through hole (60) along the axial direction, and the handle (1) is located on the other side of the second through hole (60) along the axial direction. The handle shaft (2) includes a shaft body (21) and a limiting part (22) connected to the shaft body (21) and extending laterally. The shaft body (21) passes through the second through hole (60), and the limiting part (22) abuts against the lock housing (6).

6. The handle device according to claim 5, characterized in that, The handle device further includes a second elastic element (8), which is connected between the lock housing (6) and the limiting part (22).

7. The handle device according to claim 5, characterized in that, The handle device also includes a panel (71) disposed on the side of the lock case (6) facing the handle (1).

8. The handle device according to claim 5, characterized in that, The handle device also includes a liner (72), which is disposed on the side of the lock housing (6) facing the square bushing (3). The liner (72) has a third through hole (73), through which the square bushing (3) passes. The maximum cross-sectional dimension of the liner (72) is greater than the maximum cross-sectional dimension of the handle shaft (2).

9. The handle device according to claim 1, characterized in that, The handle (1) includes a handle body (12) and a handle cover (11). The handle body (12) and the handle shaft (2) are connected in a transmission manner. The handle cover (11) is connected to the side of the handle body (12) facing away from the handle shaft (2). The handle body (12) and the handle cover (11) are made of different materials.

10. A door lock, characterized in that, The door lock includes a handle device as described in any one of claims 1 to 9, and a lock body connected to the handle device.

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