Lock body structure and door lock

Abstract

The application relates to the technical field of locks, and discloses a lock body structure and a door lock, which comprises a shell, a lock tongue sliding block which is arranged in the shell and synchronously slides with a lock tongue, a first handle knob which is rotationally arranged in the shell and is provided with a first protrusion on the outer periphery, a second handle knob which is coaxially rotationally arranged in the shell with the first handle knob and is provided with a second protrusion on the outer periphery, a reverse locking knob which is rotationally arranged in the shell and is formed with an outward protruding sliding shaft, and a locking block which is slidingly arranged in the shell, is formed with a sliding groove at one end for the sliding shaft to slide, and is slidably arranged at the other end to one side of the first handle knob or the second handle knob to limit the rotation of the first handle knob or the second handle knob. The connecting structure between the reverse locking knob and the handle knob is simple, the reverse locking can be realized only by using the locking block, the stability is good during use, dislocation and other faults are not prone to occur, and the reverse locking function can be used for a long time.

Description

Technical Field

[0001] This invention relates to the field of lock technology, specifically to a lock body structure and a door lock. Background Technology

[0002] Door locks typically have a deadbolt knob. When the door is closed, turning this knob in the preset direction restricts the door handle's movement, thus locking the door. However, the connection structure between the deadbolt knob and the handle in existing door locks is complex and unstable, prone to misalignment and other malfunctions during use, affecting the deadbolt function. Furthermore, for some locks, such as those with a magnetic single-latch or multi-latch locks with a deadbolt, when the door is open, the latches associated with the deadbolt function usually retract into the lock. If someone accidentally turns the deadbolt knob in this situation, the door handle will be unable to turn, thus affecting the normal use of the door lock. Summary of the Invention

[0003] The present invention provides a lock body structure and a door lock to at least solve one of the above-mentioned technical problems.

[0004] To achieve the above objectives, the present invention provides a lock body structure, comprising: a housing; a latch slider, which is slidably disposed within the housing synchronously with the latch, and has an unlocking portion on the side away from the latch end; a first handle lever, rotatably disposed within the housing, and has a first protrusion on its outer periphery; a second handle lever, which is rotatably disposed within the housing coaxially with the first handle lever, and has a second protrusion on its outer periphery; a deadbolt lever, rotatably disposed within the housing, and has an outwardly protruding sliding shaft formed thereon; and a locking block, slidably disposed within the housing, with a sliding groove formed at one end for the sliding shaft to slide, and the other end slidable to the side of the first handle lever and / or the second handle lever; wherein the deadbolt lever... When the handle is rotated, the sliding shaft drives the locking block to slide away from or towards the side of the handle. When the other end of the locking block slides to the side of the first and / or second handles, it restricts the rotation of the first and / or second handles, and the lock body structure is in a locked state. In the unlocked state, when the first handle rotates to one side, the side of the first protrusion abuts against the unlocking part and drives the bolt slider to slide towards the unlocking side. In the unlocked state, when the second handle rotates to one side, the side of the second protrusion abuts against the unlocking part and drives the bolt slider to slide towards the unlocking side.

[0005] Preferably, the locking block is slidably disposed within the housing on the side near the first handle lever, and the other end of the locking block slides to the side of the first handle lever to restrict the rotation of the first handle lever; wherein, in the locked state, when the second handle lever rotates to one side, the side of the second protrusion abuts against the unlocking part and drives the locking tongue slider to slide towards the unlocking side.

[0006] Preferably, a third protrusion is formed on the deadbolt and a fourth protrusion is formed on the latch slider; wherein when the latch slider slides toward the unlocking side, the fourth protrusion abuts against the third protrusion and drives the deadbolt to rotate, causing the other end of the locking block to slide away from the first handle protrusion, thereby releasing the deadbolt.

[0007] Preferably, it further includes: a transmission gear, rotatably disposed in the housing, one side engaging with the anti-locking mortise, and the other side forming a fifth protrusion; wherein a sixth protrusion is formed on the second handle mortise, and in the unlocked state, when the second handle mortise rotates to the other side, the sixth protrusion abuts against the fifth protrusion, driving the transmission gear to rotate, causing the anti-locking mortise to rotate, thereby causing the other end of the locking block to slide to the side of the first handle mortise, completing the anti-locking.

[0008] Preferably, a seventh protrusion is also formed on the second handle lever. When the latch enters the housing along with the latch slider, the seventh protrusion abuts against the latch slider, restricting the second handle lever from rotating to the other side.

[0009] Preferably, it further includes: an adjustment component disposed on the housing to adjust the position of the locking block so that it slides to the side of the first handle and / or the second handle.

[0010] Preferably, the adjusting assembly includes a reversing screw threaded onto the locking block, with both ends of the reversing screw abutting against the inner wall of the housing, and the side wall of the housing forming a reversing hole opposite to the end face of the reversing screw.

[0011] Preferably, the locking block is slidably disposed within the housing on the side near the second handle pin, and the other end of the locking block slides to the side of the second handle pin to restrict the rotation of the second handle pin; wherein, in the locked state, when the first handle pin rotates to one side, the side of the first protrusion abuts against the unlocking part and drives the locking tongue slider to slide towards the unlocking side.

[0012] Preferably, a third protrusion is formed on the deadbolt and a fourth protrusion is formed on the latch slider; wherein when the latch slider slides toward the unlocking side, the fourth protrusion abuts against the third protrusion and drives the deadbolt to rotate, causing the other end of the locking block to slide away from the second handle protrusion, thereby releasing the deadbolt.

[0013] Preferably, it further includes: a transmission gear, rotatably disposed in the housing, one side engaging with the anti-locking mortise, and the other side forming a fifth protrusion; wherein a sixth protrusion is formed on the first handle mortise, and in the unlocked state, when the first handle mortise rotates to the other side, the sixth protrusion abuts against the fifth protrusion, driving the transmission gear to rotate, causing the anti-locking mortise to rotate, thereby causing the other end of the locking block to slide to the side of the second handle mortise, completing the anti-locking.

[0014] Preferably, a seventh protrusion is also formed on the first handle lever. When the latch enters the housing along with the latch slider, the seventh protrusion abuts against the latch slider, restricting the first handle lever from rotating to the other side.

[0015] Preferably, both the second and first handles have a sixth protrusion and a seventh protrusion.

[0016] Preferably, an unlocking groove is formed at the axis of the anti-locking jack, and a through hole opposite to the unlocking groove is formed on the side wall of the housing.

[0017] Preferably, it further includes: an unlocking tooth, disposed between the first handle pin and the second handle pin, coaxially rotating with the first handle pin, having an unlocking groove formed at the center of the shaft, and engaging with the locking block on one side; wherein the first handle pin and / or the second handle pin are provided with through holes opposite to the unlocking groove.

[0018] Preferably, it further includes: a first return spring, disposed within the housing, which applies a force toward the unlocking side to the latch slider.

[0019] Preferably, it further includes: a second return spring, disposed within the housing, which applies a force to the locking pin; wherein, in the locked state and the unlocked state, the force forms a torque in opposite directions on the locking pin.

[0020] To achieve the above objectives, in another aspect, the present invention provides a door lock, comprising: a lock body structure as described above; a deadbolt knob disposed outside the housing and connected to the deadbolt mortise; a first handle, one end of which penetrates the housing and is connected to the first handle mortise; and a second handle, one end of which penetrates the housing and is connected to the second handle mortise.

[0021] Based on the above description and practice, it can be seen that in the lock body structure of the present invention, the deadbolt and the handle can be locked by only one locking block. The connection structure between the deadbolt and the handle is simple. Furthermore, the locking block and the deadbolt adopt a sliding drive method using a sliding shaft and a sliding groove. The locking block and the handle are limited by a side contact method. It has good stability during use and is not prone to misalignment or other malfunctions, ensuring that the deadbolt function can be used for a long time. Attached Figure Description

[0022] Figure 1a and Figure 1b These are schematic diagrams of the internal structure of the lock body structure in the unlocked state from two different perspectives, respectively, according to Embodiment 1 of the present invention.

[0023] Figure 2a and Figure 2b These are schematic diagrams of the internal structure of the lock body structure involved in Embodiment 1 of the present invention, viewed from both the front and back, when the lock is in the locked state and not deadbolted.

[0024] Figure 3a and Figure 3b These are schematic diagrams of the internal structure of the lock body structure in the deadbolt state from two different perspectives, respectively, according to Embodiment 1 of the present invention.

[0025] Figure 4 This is a partially exploded structural diagram of the lock body structure involved in Embodiment 1 of the present invention.

[0026] Figure 5 This is a cross-sectional structural diagram of the lock body structure involved in Embodiment 1 of the present invention.

[0027] The attached figures are labeled as follows:

[0028] 11. Housing; 12. Locking tongue; 13. Locking tongue slider; 14. Locking block; 15. Transmission gear; 16. Reversing screw; 17. Unlocking gear; 18. Unlocking groove; 21. First handle lever; 22. Second handle lever; 23. Deadbolt lever; 31. First protrusion; 32. Second protrusion; 33. Third protrusion; 34. Fourth protrusion; 35. Fifth protrusion; 36. Sixth protrusion; 37. Seventh protrusion; 41. First return spring; 42. Second return spring; 51. Sliding shaft; 52. Sliding groove; 111. Reversing hole; 131. Unlocking part; 141. Rack. Detailed Implementation

[0029] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be more comprehensive and complete, and will fully convey the concept of exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0030] Furthermore, the accompanying drawings are merely illustrative of this disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted. It should be noted that in this disclosure, the terms "comprising," "configured with," and "set in" are used to indicate an open-ended inclusion, meaning that additional elements / components / etc. may exist besides those listed; the terms "first," "second," etc., are used only as labels and are not intended to limit the number or order of objects; the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention.

[0031] Unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0032] Example 1

[0033] This embodiment discloses a lock body structure, please refer to... Figures 1a to 5 The lock body structure includes: a housing 11, a bolt slider 13, a first handle lever 21, a second handle lever 22, a deadbolt lever 23, and a locking block 14. The housing 11 can be formed by two parts that can be fastened together, with the middle part forming a space to accommodate other components. Figure 1a and Figure 4 Only one half of the housing 11 is shown to illustrate its internal structure. The side of the housing 11 has a latch hole for the extension and retraction of the latch 12 to unlock and lock.

[0034] The latch slider 13 is slidably disposed within the housing 11. One end of the slider is connected to the latch 12 and slides synchronously with the latch 12. The other end has an unlocking part 131 on its side. The sliding assembly between the latch slider 13 and the housing 11, as well as the sliding assembly between other structures described later, can be achieved using existing technologies such as slide grooves, slide rails, and slide rods, which will not be elaborated further.

[0035] The first handle lever 21 and the second handle lever 22 are coaxially rotatable within the housing 11. During use, they are connected to the door handle, allowing the user to rotate them. In actual installation, the first handle lever 21 and the second handle lever 22 face the inner and outer sides of the door leaf, respectively, and are connected to the inner and outer handles. The user can rotate one of the handle levers from inside or outside the door. A first protrusion 31 is provided on the outer periphery of the first handle lever 21, and a second protrusion 32 is provided on the outer periphery of the second handle lever 22. Both the first and second protrusions 31 and 32 are positioned opposite the unlocking part 131. When either the first handle lever 21 or the second handle lever 22 rotates to one side, the first protrusion 31 or the second protrusion 32 abuts against the unlocking part 131, causing the latch slider 13 to move towards the unlocking side, thereby bringing the latch 12 into the housing 11 to unlock.

[0036] like Figures 1a to 4 As shown, in this embodiment, the unlocking part 131 is a protrusion structure located on the rotation path of the first protrusion 31 and the second protrusion 32. Figure 2a When the first handle lever 21 or the second handle lever 22 rotates clockwise, the side of the first protrusion 31 or the second protrusion 32 abuts against the unlocking part 131, thereby pushing the lock tongue slider 13 toward the unlocking side (i.e., Figure 2a Slide the slider on the right side to unlock; after unlocking, the following will appear. Figure 1a and Figure 1b The state shown is as shown. In other embodiments, the unlocking part 131 can also be a recessed structure provided on the side of the latch slider 13, as long as it is ensured that the first protrusion 31 or the second protrusion 32 can abut against its side and drive the latch slider 13 to slide towards the unlocking side when rotated.

[0037] The deadbolt 23 is rotatably mounted inside the housing 11. During use, it can be connected to other structures such as the deadbolt knob on the door lock. The user can rotate the deadbolt 23 by rotating the deadbolt knob. A protruding sliding shaft 51 is formed on the deadbolt 23 for linkage with the locking block 14. The locking block 14 is slidably mounted inside the housing 11, with a groove 52 at one end for the sliding shaft 51 to slide in. The length direction of the groove 52 is different from the sliding direction of the locking block 14. Therefore, when the deadbolt 23 rotates, the sliding shaft 51 slides relative to it within the groove 52, causing the locking block 14 to slide within the housing 11 in a preset direction. When the locking block 14 slides, its other end ( Figure 1aThe right end of the lock can slide to the side of the first handle 21 and / or the second handle 22, and accordingly restrict the rotation of the first handle 21 and / or the second handle 22. At this time, the lock body structure is in the deadbolt state, that is, the user cannot rotate the handle on the outside of the door.

[0038] Specifically, please combine Figure 5 In this embodiment, the locking block 14 is configured to slide within the housing 11 near the first handle lever 21, and the locking block 14 moves towards... Figure 3a When the right end of the lock slides down, only the rotation of the first handle lever 21 is restricted; the second handle lever 22 can still rotate in both directions. In this situation, the entire lock body is in a deadbolt state. The first handle lever 21 is used to connect to the outer handle, and the second handle lever 22 is used to connect to the inner handle. At this time, the rotation of the outer handle is restricted, and the user cannot unlock the door from the outside; while the inner handle can rotate freely. Figure 2a Rotating clockwise will move the bolt 12 into the housing 11 to unlock the device.

[0039] In another embodiment, the locking block 14 can also be configured to slide within the housing 11 near the second handle lever 22. In this case, the locking block 14 moves towards... Figure 3a When the right end of the lock slides down, only the rotation of the second handle lever 22 is restricted; the first handle lever 21 can still rotate in both directions. In this situation, the entire lock body is in a deadbolt state. The second handle lever 22 is used to connect with the outer handle, and the first handle lever 21 is used to connect with the inner handle. At this time, the rotation of the outer handle is restricted, and the user cannot unlock the door from the outside; while the inner handle can rotate freely. Figure 2a Rotating clockwise will move the bolt 12 into the housing 11 to unlock the device.

[0040] In another embodiment, the locking block 14 can also be configured to slide simultaneously on the side of the second handle 22 of the first handle 21. In this case, the locking block 14 moves towards... Figure 3a When the right end of the lock slides, it simultaneously restricts the rotation of the first handle lever 21 and the second handle lever 22, putting the entire lock structure in a deadbolt state. The handles connected to the first handle lever 21 and the second handle lever 22 cannot rotate. Only by rotating the deadbolt lever 23 to move the locking block 14 towards... Figure 3a After sliding one end of the handle to the left, the first handle lever 21 and the second handle lever 22 can be rotated to unlock the door.

[0041] In this lock body structure, the deadbolt 23 and the handle tug can achieve the deadbolt function through only one locking block 14. The connection structure between the deadbolt 23 and the handle tug is simple. The locking block 14 and the deadbolt 23 adopt a sliding drive method of sliding shaft 51 and sliding groove 52. The locking block 14 and the handle tug adopt a side contact method to achieve the limit. It has good stability during use and is not prone to misalignment or other failures, ensuring that the deadbolt function can be used for a long time.

[0042] It should be noted that the locking block 14 restricts the rotation of the handle by means of surface contact. For example, in this embodiment, as... Figure 2a and Figure 3a As shown, the upper side of the locking block 14 and the lower side of the first handle pawl 21 can abut together. Figure 2a In the middle, the right end of the locking block 14 is located to the left of the axis of the first handle jack 21. At this time, the first handle jack 21 can rotate clockwise to unlock; Figure 3a In the middle, the right end of the locking block 14 is located to the right of the axis of the first handle jack 21. If the first handle jack 21 is rotated clockwise, its lower side will press against the upper surface of the locking block 14, and it will not be able to continue to rotate, nor can it unlock.

[0043] Furthermore, in this embodiment, only the unlocking and deadbolting processes are described. The locking process, i.e., the process of the bolt 12 extending outside the housing 11, is not an innovation of this application, and there are various locking solutions in the prior art, so it is not described in detail. For example, the bolt 12 can be a magnetic bolt or an electrically driven bolt, which can automatically extend to lock after the door is closed.

[0044] In this embodiment, although the lock body structure can be unlocked by rotating the second handle lever 22 when it is in the deadbolt state, the rotation restriction of the first handle lever 21 by the locking block 14 is not released. After locking, the lock body structure is still in the deadbolt state, and if no one is inside the door, it cannot be unlocked. To address this, in this embodiment, a third protrusion 33 is formed on the deadbolt lever 23, and a fourth protrusion 34 is formed on the latch slider 13. When the latch slider 13 slides towards the unlocking side, the fourth protrusion 34 abuts against the third protrusion 33 and drives the deadbolt lever 23 to rotate, causing the other end of the locking block 14 to slide away from the first handle lever 21, thus releasing the deadbolt.

[0045] See details Figure 3a and Figure 1a ,exist Figure 3aIn this configuration, the lock body is in a deadbolt state, with the third protrusion 33 positioned on the movement path of the fourth protrusion 34. When the second handle lever 22 is turned to unlock, the fourth protrusion 34 moves to the right, pushing the third protrusion 33 to the right as well. The deadbolt lever 23 rotates clockwise accordingly, causing the locking block 14 to slide to the left. The right end of the locking block 14 then moves away from the first handle lever 21, releasing the rotation restriction on the first handle lever 21, thus disengaging the deadbolt. Subsequent locking situations can be resolved by turning the corresponding handle lever, regardless of whether the deadbolt lever 23 is operated again, whether from the outside or inside of the door. In other words, with this structure, in the deadbolt state, turning the second handle lever 22 can both unlock and disengage the deadbolt.

[0046] Furthermore, in this embodiment, a transmission tooth 15 is rotatably disposed within the housing 11, with teeth on one side engaging with the deadbolt 23, and a fifth protrusion 35 on the other side. By controlling the rotation of the transmission tooth 15, the rotation of the deadbolt 23 can be indirectly controlled, thereby achieving deadbolt locking or unlocking. Specifically, a sixth protrusion 36 is formed on the second handle 22. When the lock body structure is not in the deadbolt state, when the second handle 22 rotates to the other side, the sixth protrusion 36 abuts against the fifth protrusion 35, driving the transmission tooth 15 to rotate, causing the deadbolt 23 to rotate, thereby causing the other end of the locking block 14 to slide to the side of the first handle 21, completing the deadbolt locking.

[0047] Please combine Figure 2a , Figure 2b , Figure 3b and Figure 4 In the unlocked state shown in Figure 2, according to Figure 2b When the second handle lever 22 is rotated clockwise (opposite to the direction of rotation when unlocking), the sixth protrusion 36 will abut against the fifth protrusion 35, thereby driving the transmission gear 15 to rotate clockwise. Figure 2a The clockwise rotation of the locking block 14 causes the anti-locking latch 23 to rotate counterclockwise, which in turn causes the right end of the locking block 14 to slide to the side of the first handle latch 21, thus achieving... Figure 3b As shown in the image, the deadbolt is complete.

[0048] by Figure 2a For example, in the unlocked state, turning the second handle lever 22 clockwise unlocks the door, while turning it counterclockwise locks it. In other words, in practical applications, turning the inner handle forward unlocks the door, and turning it backward locks it, providing the user with another locking method. In this case, the locking function can be achieved without setting a locking knob connected to the locking lever 23 on the outside of the housing 11.

[0049] It should be noted that when the lock body is in the unlocked state, i.e., when the bolt 12 has moved into the housing 11, rotating the second handle chock 22 counterclockwise as described above will also lock the lock body. In this case, the first handle chock 21 and its connected outer handle will be unable to rotate, affecting the normal use of the lock body. Therefore, a seventh protrusion 37 is formed on the second handle chock 22. When the bolt 12 enters the housing 11 with the bolt slider 13, the seventh protrusion 37 abuts against the bolt slider 13, restricting the second handle chock 22 from rotating to the other side. Figure 1b As shown, the seventh protrusion 37 on the second handle chuck 22 abuts against the lower side of the latch slider 13, restricting the second handle chuck 22 from moving according to... Figure 1b The lock cannot be locked by rotating it clockwise. In other words, when the bolt 12 moves into the housing 11, the lock body structure cannot be locked by rotating the second handle tug 22, thus preventing accidental locking when the door is open.

[0050] In this embodiment, the lock body structure has two handle pins instead of sharing a single handle pin between the inner and outer handles. Therefore, the inner and outer handles can rotate independently. In actual installation, there are left-opening and right-opening door configurations. Correspondingly, the first handle pin 21 in this lock body structure will be located on the inner and outer sides of the door in these two scenarios, respectively. The above functions are achieved by connecting the first handle pin 21 to the outer handle; if it were directly connected to the inner handle, these functions would not be possible. Therefore, to ensure that this lock body structure can be used for both left-opening and right-opening door panels, an adjustment component is also provided in the housing 11 of the lock body structure. This adjustment component allows the position of the locking block 14 to be adjusted, enabling it to slide to the side of the first handle pin 21 and / or the side of the second handle pin 22.

[0051] For example, in the above-described lock body structure, the locking block 14 is configured to slide within the housing 11 near the first handle lever 21. By limiting the first handle lever 21 with the locking block 14, the external handle connected to it is indirectly restricted, thus achieving the deadbolt function. Subsequently, if it needs to be applied to door panels with different opening directions, the locking block 14 can be moved within the housing 11 using the adjustment component, so that it slides within the housing 11 near the second handle lever 22. At this time, the second handle lever 22 can be connected to the external handle, thus limiting the external handle, while the first handle lever 21 is located near the inside of the door, used to connect with the internal handle, also achieving deadbolt. In one embodiment, the locking block 14 can also be moved within the housing 11 using the adjustment component, so that it slides simultaneously on the sides of both the first handle lever 21 and the second handle lever 22. In this case, in the deadbolt state, the rotation of both the first handle lever 21 and the second handle lever 22 is restricted, also achieving the basic deadbolt function.

[0052] In this embodiment, a specific form of the adjustment component is also disclosed, please refer to 4 and Figure 5 The adjusting assembly includes a reversing screw 16 threaded onto the locking block 14. Both ends of the reversing screw 16 abut against the inner wall of the housing 11. The side wall of the housing 11 forms a reversing hole 111 opposite to the end face of the reversing screw 16. First, the two ends of the reversing screw 16 abut against the inner wall of the housing 11, allowing it to slide synchronously with the locking block 14 without affecting its functions. Second, when the user rotates the reversing screw 16 through the reversing hole 111, the locking block 14 can also move axially along the reversing screw 16, thereby achieving the aforementioned function of sliding laterally to the first handle lever 21 and / or the second handle lever 22.

[0053] Furthermore, the lock body structure in this embodiment also includes an emergency unlocking function. When the lock body structure is in the deadbolt state, the user can unlock it from the outside using a preset tool. For details, please refer to... Figure 3a , Figure 3b and Figure 4 An unlocking groove 18 is formed at the axis of the deadbolt 23, and a through hole corresponding to the unlocking groove 18 is formed on the side wall of the housing 11. In the deadbolt state, the user can use a tool to insert into the unlocking groove 18 inside the housing 11 and rotate the deadbolt 23 to release the deadbolt.

[0054] In one embodiment, an emergency unlocking mechanism may also be provided at both handle points. Please refer to [reference needed]. Figure 3b and Figure 4An unlocking tooth 17 is rotatably provided between the first handle lever 21 and the second handle lever 22. It rotates coaxially with the first handle lever 21, and an unlocking groove 18 is formed at the axis of the unlocking tooth 17. A rack 141 is formed at one end of the locking block 14, which meshes with the unlocking tooth 17. One side of the unlocking tooth 17 engages with the locking block 14 through its teeth. Rotating the unlocking tooth 17 can cause the locking block 14 to slide. Through holes corresponding to the unlocking groove 18 are provided on the first handle lever 21 and / or the second handle lever 22. The user can use a preset tool to insert into the unlocking groove 18 inside the housing 11 from the outside and rotate the unlocking tooth 17 to unlock the lock. Figure 3b Taking the state in the figure as an example, when the lock body structure is in the deadbolt state, rotating the unlocking tooth 17 counterclockwise can move the locking block 14 to the right side of the figure, thereby releasing the rotation restriction on the first handle pawl 21, that is, releasing the deadbolt.

[0055] It should be noted that the aforementioned unlocking slot 18 can also extend to the outside of the housing or to the outer end of the handle's shaft via a connector. In case of emergency unlocking, rotating the connector can indirectly rotate the deadbolt and release the deadbolt.

[0056] Additionally, in this embodiment, a first return spring 41 is provided inside the housing 11, which applies a force toward the unlocking side to the latch slider 13. Figure 1a and Figure 2a As shown, the first return spring 41 applies a force to the right side to the latch slider 13. When the latch 12 and the latch slider 13 are not subjected to other external forces, the first return spring 41 can pull the latch 12 into the housing 11 to prevent the latch 12 from bumping into the user or other objects.

[0057] In addition, in this embodiment, a second return spring 42 is provided inside the housing 11, which applies a force to the deadbolt 23. In the deadbolt state and the unlocked state, the force forms a torque in opposite directions on the deadbolt 23, so that the deadbolt 23 can be stably maintained in the two states, ensuring that the lock body structure can operate stably.

[0058] Specifically, such as Figure 2b and Figure 3bAs shown, in the unlocked state, the force applied to the locking jack 23 generates a torque that tends to rotate counterclockwise. Limited by the rightward movement of the locking block 14, or by obstructions from other structures, the locking jack 23 remains stably in this state. When locking is required, only the torque that overcomes this force can rotate the locking jack 23, preventing the lock structure from easily locking due to vibration or other external factors. In the locked state, the force applied to the locking jack 23 generates a torque that tends to rotate clockwise. Limited by the leftward movement of the locking block 14, or by obstructions from other structures, the locking jack 23 remains stably in this state. When unlocking is required, only the torque that overcomes this force can rotate the locking jack 23, preventing the lock structure from easily unlocking due to vibration or other external factors. This ensures the stable operation of the lock structure.

[0059] In addition, this embodiment also discloses a door lock, including the aforementioned lock body structure, a deadbolt knob, a first handle, and a second handle. The deadbolt knob is located outside the housing 11 and connected to the deadbolt jack 23. The user can rotate the deadbolt knob to rotate the deadbolt jack 23, thus locking and unlocking the door. One end of the first handle passes through the housing 11 and is connected to the first handle jack 21, and one end of the second handle passes through the housing 11 and is connected to the second handle jack 22. The user can rotate the first handle to rotate the first handle jack 21 and rotate the second handle to rotate the second handle jack 22, thereby achieving the various functions of the lock body structure.

[0060] Example 2

[0061] In this embodiment, a lock body structure and a door lock are also disclosed. Unlike the lock body structure in Embodiment 1, in this embodiment, the locking block 14 is slidably disposed within the housing 11 near the second handle chuck 22. The other end of the locking block 14 slides to the side of the second handle chuck 22 to restrict its rotation. In the factory-installed state, the second handle chuck 22 is used to connect with the outer handle. In the factory-installed state, the first handle chuck 21 of the lock body structure in Embodiment 1 is used to connect with the outer handle. In other words, the lock body structures in these two embodiments are suitable for left-opening and right-opening door panels, respectively.

[0062] In this embodiment, the first handle lever 21 is used to connect with the inner handle. Therefore, in order to realize the function of rotating the first handle lever 21 to complete the anti-locking, a sixth protrusion 36 is formed on the first handle lever 21. In the unlocked state, when the first handle lever 21 is rotated to the other side, the sixth protrusion 36 abuts against the fifth protrusion 35, driving the transmission gear 15 to rotate, causing the anti-locking lever 23 to rotate, thereby causing the other end of the locking block 14 to slide to the side of the second handle lever 22, restricting the rotation of the second handle lever 22, and completing the anti-locking.

[0063] In addition, to prevent accidental rotation of the first handle lever 21 in the unlocked state, which would cause it to lock, a seventh protrusion 37 is formed on the first handle lever 21. When the locking tongue 12 enters the housing 11 along with the locking tongue slider 13, the seventh protrusion 37 abuts against the locking tongue slider 13, restricting the first handle lever 21 from rotating to the other side.

[0064] Other structures, such as the anti-locking paddle 23, locking block 14, reversing assembly, transmission gear 15, unlocking gear 17, first reset spring 41, and second reset spring 42, are the same as those in Embodiment 1, and will not be described again here.

[0065] The door lock in this embodiment also includes the aforementioned lock body structure, a deadbolt knob, a first handle, and a second handle. The deadbolt knob is located outside the housing 11 and connected to the deadbolt jack 23. The user can rotate the deadbolt knob to rotate the deadbolt jack 23, thus locking and unlocking the door. One end of the first handle passes through the housing 11 and is connected to the first handle jack 21, and one end of the second handle passes through the housing 11 and is connected to the second handle jack 22. The user can rotate the first handle to rotate the first handle jack 21 and rotate the second handle to rotate the second handle jack 22, thereby achieving the various functions of the lock body structure described above.

[0066] In another embodiment, the aforementioned sixth protrusion 36 and seventh protrusion 37 are simultaneously provided on both the first handle lever 21 and the second handle lever 22. The sixth protrusion 36 on the two handle levers is arranged opposite to each other, and the seventh protrusion 37 is also arranged opposite to each other, that is, the first handle lever 21 and the second handle lever 22 have a mirror-symmetrical structure. Accordingly, this lock body structure can adjust the position of the locking block 14 through the reversing component to be applicable to both left-opening and right-opening doors, and can also achieve the function of locking and preventing accidental locking by rotating the handle lever on the inside of the door in both forward and backward directions.

[0067] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A lock body structure, characterized in that, include: case; The latch slider is installed inside the housing and slides synchronously with the latch. An unlocking part is provided on the side away from the latch. The first handle for turning peaches is located inside the housing and has a first protrusion on its outer periphery. The second handle and the first handle are rotatably mounted in the housing, and a second protrusion is provided on the outer periphery. The locking mechanism is rotatably located inside the housing, and a protruding sliding shaft is formed thereon. The locking block is slidably disposed within the housing, with a groove formed at one end for the sliding shaft to slide, and the other end slidable to the side of the first handle and / or the second handle. in When the anti-locking mortise rotates, the sliding shaft drives the locking block to slide away from or towards the side of the handle mortise. When the other end of the locking block slides to the side of the first handle mortise and / or the second handle mortise, the rotation of the first handle mortise and / or the second handle mortise is restricted, and the lock body structure is in an anti-locked state. In the unlocked state, when the first handle lever is rotated to one side, the side of the first protrusion abuts against the unlocking part and drives the lock tongue slider to slide towards the unlocking side; in the unlocked state, when the second handle lever is rotated to one side, the side of the second protrusion abuts against the unlocking part and drives the lock tongue slider to slide towards the unlocking side.

2. The lock body structure as described in claim 1, characterized in that, The locking block is slidably disposed within the housing on the side near the first handle and the other end of the locking block can restrict the rotation of the first handle and the first handle after it slides to the side of the first handle and the first handle. in In the locked state, when the second handle lever is rotated to one side, the side of the second protrusion abuts against the unlocking part and drives the lock tongue slider to slide towards the unlocking side.

3. The lock body structure as described in claim 2, characterized in that, A third protrusion is formed on the deadbolt, and a fourth protrusion is formed on the latch slider; wherein When the latch slider slides toward the unlocking side, the fourth protrusion abuts against the third protrusion and drives the deadbolt to rotate, causing the other end of the locking block to slide away from the first handle to release the deadbolt.

4. The lock body structure as described in claim 2, characterized in that, Also includes: The transmission gear is rotatably disposed within the housing, one side engaging with the anti-locking jack, and the other side forming a fifth protrusion; wherein The second handle lever has a sixth protrusion. In the unlocked state, when the second handle lever rotates to the other side, the sixth protrusion abuts against the fifth protrusion, driving the transmission gear to rotate, causing the locking lever to rotate, and then causing the other end of the locking block to slide to the side of the first handle lever, thus completing the locking.

5. The lock body structure as described in claim 4, characterized in that, A seventh protrusion is also formed on the second handle lever. When the latch enters the housing along with the latch slider, the seventh protrusion abuts against the latch slider, restricting the second handle lever from rotating to the other side.

6. The lock body structure as described in claim 1, characterized in that, Also includes: An adjustment component, provided on the housing, adjusts the position of the locking block so that it slides to the side of the first handle and / or the second handle.

7. The lock body structure as described in claim 6, characterized in that, The adjusting assembly includes a reversing screw threaded onto the locking block, with both ends of the reversing screw abutting against the inner wall of the housing, and the side wall of the housing having a reversing hole opposite to the end face of the reversing screw.

8. The lock body structure as described in claim 1, 6, or 7, characterized in that, The locking block is slidably disposed within the housing on the side near the second handle pin. The other end of the locking block can restrict the rotation of the second handle pin after sliding to the side of the second handle pin. in In the locked state, when the first handle lever is rotated to one side, the side of the first protrusion abuts against the unlocking part and drives the lock tongue slider to slide towards the unlocking side.

9. The lock body structure as described in claim 8, characterized in that, A third protrusion is formed on the deadbolt, and a fourth protrusion is formed on the latch slider; wherein When the latch slider slides toward the unlocking side, the fourth protrusion abuts against the third protrusion and drives the deadbolt to rotate, causing the other end of the locking block to slide away from the second handle to release the deadbolt.

10. The lock body structure as described in claim 9, characterized in that, Also includes: The transmission gear is rotatably disposed within the housing, one side engaging with the anti-locking jack, and the other side forming a fifth protrusion; wherein A sixth protrusion is formed on the first handle pin. In the unlocked state, when the first handle pin rotates to the other side, the sixth protrusion abuts against the fifth protrusion, driving the transmission gear to rotate, causing the locking pin to rotate, and then causing the other end of the locking block to slide to the side of the second handle pin, thus completing the locking.

11. The lock body structure as described in claim 10, characterized in that, A seventh protrusion is also formed on the first handle lever. When the latch enters the housing along with the latch slider, the seventh protrusion abuts against the latch slider, restricting the first handle lever from rotating to the other side.

12. The lock body structure as described in claim 11, characterized in that, The second handle and the first handle both have the sixth protrusion and the seventh protrusion respectively.

13. The lock body structure as described in claim 1, characterized in that, An unlocking groove is formed at the axis of the anti-locking jack, and a through hole opposite to the unlocking groove is formed on the side wall of the housing.

14. The lock body structure as described in claim 1, characterized in that, Also includes: The unlocking tooth is located between the first and second handle levers, rotates coaxially with the first handle lever, and has an unlocking groove formed at its center. One side of the tooth engages with the locking block. The first handle and / or the second handle are provided with through holes opposite to the unlocking slot.

15. The lock body structure as described in claim 1, characterized in that, Also includes: A first return spring is provided inside the housing and applies a force toward the unlocking side to the latch slider.

16. The lock body structure as described in claim 1, characterized in that, Also includes: The second return spring is located inside the housing and applies a force to the anti-locking jack. in In both the locked and unlocked states, the force generates torques in opposite directions on the locking pin.

17. A door lock, characterized in that, include: The lock body structure as described in any one of claims 1 to 16; A deadbolt knob is located outside the housing and connected to the deadbolt jack. The first handle has one end that penetrates the shell and is connected to the first handle tumbler. The second handle has one end that penetrates through the housing and is connected to the second handle nut.

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