CN115110840B - Lock body structure and keyless door lock - Google Patents

Abstract

The invention relates to the technical field of locks, and discloses a lock body structure and a keyless door lock, wherein the lock body structure comprises: a housing; the lock tongue assembly is arranged in the shell in a sliding way, and an unlocking clamping table is arranged on one side of the lock tongue assembly; the first poking peach is rotatably arranged in the shell, and a first boss with one side surface capable of being abutted against the unlocking clamping table is arranged on the periphery of the first poking peach; the second poking peach is rotatably arranged in the shell, and the periphery of the second poking peach is provided with a second boss with one side surface capable of being abutted against the unlocking clamping table and a third boss with one side surface capable of being abutted against the limiting column in the shell; the locking block is rotatably arranged in the shell, and the periphery of the locking block is provided with a fourth boss, a fifth boss and a sixth boss, wherein the side surface of the fourth boss can be abutted against the end surface of the lock tongue assembly, the side surface of the fifth boss can be abutted against the other side surface of the first boss, and the sixth boss can be abutted against the other side surface of the third boss. The keyless door lock comprises the lock body structure, the inner side handle is rotated to release the back lock in the back lock state, and the lock tongue assembly moves inwards when the door is closed, so that the back lock can be released, and the door lock has higher safety.

Description

Lock body structure and keyless door lock

Technical Field

The invention relates to the technical field of locks, in particular to a lock body structure and a keyless door lock.

Background

For the door locks of indoor rooms, such as bedrooms, bathrooms, children rooms or old houses, as the door locks of the indoor rooms have stronger security function, the requirement of privacy protection is mainly considered when the indoor door locks are designed, and accordingly, the door locks cancel the function of unlocking outdoors through a key, but are provided with emergency switch structures, so that the back lock can be conveniently released when the back lock is wrongly locked. In addition, the door lock can be conveniently unlocked at one side in the door.

Disclosure of Invention

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a lock body structure and a keyless door lock, which can perform unlocking and back locking operations conveniently and easily with a small number of structures.

In order to achieve the above object, in a first aspect, the present invention provides a lock body structure, including: a housing; the lock tongue assembly is arranged in the shell in a sliding way, and an unlocking clamping table is arranged on one side of the lock tongue assembly; the first poking peach is rotatably arranged in the shell, and a first boss with one side surface capable of being abutted against the unlocking clamping table is arranged on the periphery of the first poking peach; the second poking peach is rotatably arranged in the shell, and the periphery of the second poking peach is provided with a second boss with one side surface capable of being abutted against the unlocking clamping table and a third boss with one side surface capable of being abutted against the limiting column in the shell; the locking block is rotatably arranged in the shell, and a fourth boss, a fifth boss and a sixth boss are arranged on the periphery, wherein the side surface of the fourth boss can be abutted against the end surface of the lock tongue assembly, the side surface of the fifth boss can be abutted against the other side surface of the first boss, and the sixth boss can be abutted against the other side surface of the third boss; wherein when the fourth boss abuts against the end face of the lock tongue assembly, the sixth boss abuts against the third boss and restricts rotation of the second dial-up peach; when the first shifting peach or the second shifting peach rotates, the unlocking clamping table can be pushed to move inwards, so that the lock tongue enters the shell; when the lock tongue assembly slides into the lock body, the fourth boss can be pushed to move inwards, so that the sixth boss is far away from the third boss.

Preferably, a second sliding groove or a stop block for limiting the rotation range of the locking block is arranged in the shell, a second sliding block which can be accommodated in the second sliding groove or between the stop blocks is arranged on the locking block, and a first spring with one end hinged on a spring shaft in the shell and the other end hinged on the locking block is also arranged in the shell; the acting force applied by the first spring to the locking block can enable the second sliding block to be abutted against the end part of the second sliding groove or the stop block.

Preferably, the lock tongue assembly comprises a lock tongue, a driving frame and a second spring, wherein the inner side of the lock tongue is connected to the driving frame, one side of the second spring is abutted to the driving frame and applies a force towards one side of the lock tongue to the driving frame, and the unlocking clamping table is arranged on the driving frame.

Preferably, the method further comprises: one end of the positioning plate is rotatably arranged in the shell, and the other end of the positioning plate is provided with a positioning surface; the third spring is arranged in the shell and applies acting force towards one side of the first poking peach to the positioning plate; the side faces of the first shifting peach and the second shifting peach are provided with positioning faces which can be attached to the positioning plate, when the positioning faces are attached to the positioning plate, the side faces of the first boss and the second boss are abutted to the unlocking clamping table, and the side faces of the third boss are abutted to the limiting column.

Preferably, the second poking peach comprises a middle poking peach and an outer poking peach, the second boss is arranged on the outer poking peach, and the third boss is arranged on the middle poking peach; and a seventh boss with a side surface capable of being abutted against the other side surface of the second boss is further arranged on the locking block.

In order to achieve the above object, in a second aspect, the present invention provides a keyless door lock comprising: a lock body structure as described above; one end of the first handle is inserted into the middle of the first poking peach and rotates synchronously with the first poking peach; and one end of the second handle is inserted into the middle part of the second poking peach and rotates synchronously with the second poking peach.

Preferably, a transmission bar capable of rotating synchronously with the locking block is arranged in the middle of the locking block in a penetrating way, and two ends of the transmission bar extend to the outside of the shell.

Preferably, the method further comprises: the state needle is arranged on one side of the door lock close to the inside of the door and is connected with the transmission bar; when the sixth boss is abutted against the third boss, the state needle points to a first preset position, and when the sixth boss gradually leaves the third boss, the state needle gradually points to a second preset position.

Preferably, the method further comprises: the emergency unlocking structure is arranged on one side of the door lock, which is close to the outer side of the door, and is connected with the transmission bar.

Preferably, the emergency unlocking structure comprises an emergency toggle with the outer end rotatably arranged on the outer side panel and the inner end sleeved at the end part of the transmission bar; the periphery of the emergency toggle is provided with a first clamping table which is outwards protruded, and the outer side panel is provided with a first clamping groove which can accommodate the first clamping table; the end of the transmission bar is provided with a second clamping table protruding outwards, and the inner end of the emergency toggle is provided with a groove for accommodating the end of the transmission bar and a second clamping groove for accommodating the second clamping table.

Preferably, the emergency unlocking structure further comprises: the connecting block is sleeved at the end part of the transmission bar, one end of the connecting block is rotatably arranged in a groove at the inner end of the emergency toggle, and the other end of the connecting block is rotatably arranged in a groove at the outer side of the baffle; the baffle is fixedly connected to the outer side panel, and the emergency toggle and the linkage block are accommodated between the baffle and the outer side panel.

In order to achieve the above object, in a third aspect, the present invention provides still another keyless door lock comprising: a lock body structure as described above; one end of the first handle is inserted into the middle of the outer poking peach and rotates synchronously with the outer poking peach; and one end of the second handle is inserted into the middle parts of the first poking peach and the middle poking peach and synchronously rotates with the first poking peach and the middle poking peach.

From the above description and practice, the lock body structure of the present invention has the following advantages:

1. the lock body structure is internally provided with the first shifting peach, the second shifting peach, the locking block and the lock tongue assembly, and the functions of locking, unlocking and back locking can be realized through the matching of each boss on the periphery of the shifting peach and the locking block and the unlocking clamping table. The lock body structure can release the back lock by rotating the first poking peach or pushing the lock tongue inwards under the back lock state, has the advantage of convenient unlocking, and is suitable for indoor doors such as bathrooms, old man rooms and children rooms. The door lock is applied to a door lock, and when the door is closed, the lock tongue assembly moves towards the shell, so that the back lock can be released, the function that the back lock cannot be realized when one side in the door is not occupied is realized, and the door lock has higher safety.

2. In the lock body structure, the lock tongue is rotationally connected with the lock tongue driving frame, so that the lock body structure can be suitable for left-opening and right-opening doors; in addition, the second poking peach can adopt a split structure of the middle poking peach and the outer poking peach, at the moment, the functions of the outer poking peach and the first poking peach can be interchanged, and the lock body structure can be suitable for the left-opening and right-opening doors without changing the internal structure.

Drawings

Fig. 1a and 1b are schematic views of the internal structure of a lock body according to an embodiment of the present invention from two angles when the lock body is in a locked state.

Fig. 2a is a schematic view showing an internal structure of a lock body structure in a locked state according to an embodiment of the present invention.

Fig. 2b is a schematic diagram of the internal structure of the lock body according to an embodiment of the present invention after unlocking the back lock.

Fig. 3 is a schematic view of the structure of a lock block according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a first dial peach, a middle dial peach and an outer dial peach according to an embodiment of the present invention.

Fig. 5a and 5b are schematic structural views of a keyless door lock according to an embodiment of the present invention in two views.

Fig. 6a and 6b are schematic views of an emergency unlocking structure according to an embodiment of the present invention, in two views.

The reference numerals in the figures are:

1. a housing; 11. a first chute; 12. a second chute; 13. a limit column; 14. a spring shaft; 21. a first slider; 22. a bolt; 23. a drive frame; 24. unlocking the clamping table; 31. the first peach pulling method comprises the steps of (1) pulling peach; 32. a second peach pulling step; 33. dialing peach; 34. peach is plucked out; 4. a locking block; 41. a second slider; 51. a first spring; 52. a second spring; 53. a third spring; 61. a first boss; 62. a second boss; 63. a third boss; 64. a fourth boss; 65. a fifth boss; 66. a sixth boss; 67. a seventh boss; 71. a first handle; 72. a second handle; 73. a transmission bar; 74. a status pin; 75. an inner panel; 76. an outer panel; 77. emergency pulling and twisting; 78. a connecting block; 79. a baffle; 81. a first clamping table; 82. a second clamping table; 83. a first clamping groove; 84. a second clamping groove; 9. and (5) positioning the plate.

Detailed Description

Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied 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 thorough and complete, and will fully convey the concept of the 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.

Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted. In the present disclosure, the terms "comprising," "including," "having," "disposed in" and "having" are intended to be open-ended and mean that there may be additional elements/components/etc. in addition to the listed elements/components/etc.; the terms "first," "second," and the like, are used merely as labels, and do not limit the number or order of their objects; the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like refer to an orientation or positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the invention.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

Fig. 1a and 1b show the internal structure of the lock body structure in this embodiment in two view angles in a locked non-back-locked state, wherein fig. 1a shows the structure of the inner side of the door and fig. 1b shows the structure of the outer side of the door; FIG. 2a shows the internal structure of the lock body structure in this embodiment in the unlocked state, with the view from the inside of the door; FIG. 2b shows the internal structure of the lock body structure of this embodiment after unlocking the back lock and unlocking, again with the view to the door interior side; fig. 3 shows the structure of the lock block in this embodiment; fig. 4 shows the structure of the first dial peach, the middle dial peach, and the outer dial peach in this embodiment.

Referring to fig. 1a to 4, the lock body structure in this embodiment includes a latch bolt assembly, a first dial 31, a second dial 32, a lock block 4 and a first spring 51 disposed in a housing 1. The housing 1 may be formed by two half-shells, with a cavity in the middle to house the above components, only one half-shell of the housing 1 being shown in fig. 1a and 1b to show the internal structure of the lock. A bolt hole for extending and retracting the bolt 22 is provided at one end surface of the housing 1.

The latch bolt assembly is slidably disposed within the housing 1 and is slidable in the extension and retraction direction of the latch bolt 22. Specifically, a first chute 11 is arranged on the inner wall of the shell 1, a first sliding block 21 embedded in the first chute 11 is arranged on the lock tongue component, and the lock tongue component can slide in the first chute 11 under the drive of the lock tongue 22 or the first dial peach 31 and the second dial peach 32. In this embodiment, the latch bolt assembly includes a latch bolt 22, a drive frame 23, and a second spring 52, with a first slider 21 disposed on the drive frame 23. The lock tongue 22 is disposed at one end of the driving frame 23, and as the driving frame 23 slides in the housing 1, the lock tongue 22 may extend out of the housing 1 or retract into the housing 1. In addition, the lock tongue 22 is rotatably connected with the driving frame 23, and the direction of the inclined plane of the lock tongue 22 can be rotated during installation, so that the door is suitable for left-opening or right-opening doors. One end of the second spring 52 is fixed, and the other end is connected to the driving frame 23, and applies a force to the driving frame 23 toward one side of the lock tongue 22, so that when the driving frame 23 moves to the right in fig. 1a to unlock, the lock returns to the left under the force applied by the second spring 52, i.e., the lock tongue 22 returns to the outside of the housing 1 again.

In this embodiment, the first dial peach 31 and the second dial peach 32 are both rotatably provided in the housing 1, and are connected to handles, respectively, so as to be rotatable in the housing 1 when in use. Referring to fig. 4, a first boss 61 is disposed on the outer periphery of the first dial 31, and when the first dial 31 rotates, a side surface of the first boss 61 may abut against the unlocking chuck 24, so as to drive the driving frame 23 to slide in the housing 1. As shown in fig. 1a and fig. 2b, after the side surface of the first boss 61 abuts against the unlocking platform 24, the driving frame 23 can be driven to slide to the right side in the drawing along with the clockwise rotation of the first dial 31, so that the lock tongue 22 enters the housing 1 to unlock.

In this embodiment, the second dial 32 is composed of a middle dial 33 and an outer dial 34, which are sleeved on the same handle in use and can rotate synchronously in the housing 1. The first poking peach 31 and the outer poking peach 34 are respectively positioned at two sides of the middle poking peach 33. The outer dial peach 34 has the same shape as the first dial peach 31, and a second boss 62 is provided on the outer periphery thereof, and when the second boss 62 rotates along with the outer dial peach 34, the side surface can be abutted against the unlocking clamping table 24 on the driving frame 23. In other words, the unlocking clamping tables 24 are respectively arranged on two sides of the driving frame 23, and when in use, the first poking peach 31 or the outer poking peach 34 can drive the driving frame 23 to slide to the right side in fig. 1a, so that unlocking is realized.

In addition, a third boss 63 is arranged on the periphery of the middle poking peach 33, when the middle poking peach 33 rotates, the side surface of the third boss 63 can be abutted against a limiting column 13 in the shell 1, the limiting column 13 is fixed on the side wall of the shell 1 and used for assisting in limiting the middle poking peach 33, and when the middle poking peach 33 rotates, the outer poking peach 34 and the middle poking peach 33 synchronously move during use, so that when the rotation of the middle poking peach 33 is limited, the rotation of the outer poking peach 34 is limited. For example, in fig. 1a, 2a and 2b, the center dial 33 and outer dial 34 are limited in counterclockwise rotation; in fig. 1b, the center dial 33 and the outer dial 34 are restricted from rotating clockwise.

In this embodiment, the driving frame 23 has a U-shaped structure, the lock tongue 22 is disposed at the bottom end of the U-shaped structure, and the length of one side of the driving frame 23 provided with the unlocking block 24 is greater than the length of the other side, and the other side is used for being matched with the locking block 4 to realize unlocking. Referring to fig. 3, the lock block 4 is also rotatably provided in the housing 1, and is provided with a fourth boss 64, a fifth boss 65, a sixth boss 66, and a seventh boss 67 on the outer periphery thereof. During rotation of the lock block 4, the side surface of the fourth boss 64 may abut against the end surface of the shorter side of the drive frame 23, the side surface of the fifth boss 65 may abut against the side surface of the first boss 61, the seventh boss 67 may abut against the side surface of the second boss 62, and the side surface of the sixth boss 66 may abut against the side surface of the third boss 63.

In other words, when the first dial 31 in fig. 1a rotates counterclockwise, after the side surface of the first boss 61 abuts against the fifth boss 65, as the first dial 31 continues to rotate counterclockwise, the locking block 4 is driven to rotate clockwise, so that the side surface of the fourth boss 64 abuts against the end surface of the shorter side of the driving frame 23, and meanwhile, the side surface of the sixth boss 66 abuts against the side surface of the third boss 63, i.e. the state shown in fig. 2a, at this time, the lock body is in the anti-lock state, and the rotation of the handles inserted on the middle dial 33 and the outer dial 34 is limited. In addition, when the driving frame 23 slides into the housing 1, the end face of the driving frame can push the fourth boss 64 to rotate anticlockwise, so that the sixth boss 66 is far away from the third boss 63, the rotation restriction on the third boss 63 is released, and at this time, the handles inserted on the middle dial 33 and the outer dial 34 can rotate, thereby releasing the back locking state of the lock body.

When the lock body structure is applied to a door lock, and when the door is closed and not locked, the internal structure is in a state shown in fig. 1a and 1b, and when the door is unlocked, the inner side handle can be rotated to drive the first dial peach 31 to rotate clockwise or the outer side handle can be rotated to drive the middle dial peach 33 and the outer dial peach 34 to rotate clockwise, so that the driving frame 23 slides into the shell 1, the lock tongue 22 is contracted into the shell 1, and unlocking is realized; when the door is closed and the back locking is needed, the rotatable inner handle drives the first shifting peach 31 to rotate anticlockwise, so that the locking block 4 rotates clockwise, the sixth boss 66 is abutted against the third boss 63, the rotation of the outer handle is limited, and finally the back locking is realized, namely, the state shown in fig. 2 a; when unlocking is needed, the rotatable inner handle drives the first dial peach 31 to rotate clockwise, so that the driving frame 23 slides into the shell 1, the lock tongue 22 is contracted into the shell 1, the driving frame 23 can push the fourth boss 64 to the initial position while unlocking is realized, the sixth boss 66 is far away from the third boss 63, and the rotation restriction of the dial peach 33 and the outer dial peach 34 is released, namely, the unlocking is released. The description herein is based on the view of one side of the door, i.e. the view in fig. 1a, 2a and 2b, both clockwise and counterclockwise.

The lock body structure can realize the functions of locking, unlocking and back locking of the traditional lockset by fewer parts, is applied to a door, and can also enable the locking block 4 to rotate and further release the back locking if the handle is unlocked by misoperation when the door is not closed, and the lock tongue 22 is retracted into the shell 1 in the door closing process. In addition, the second shifting peach 32 adopts a split structure, namely a middle shifting peach 33 and an outer shifting peach 34, wherein the outer shifting peach 34 has the same structure as the first shifting peach 31, and a fifth boss 65 and a seventh boss 67 are respectively arranged on two sides of a sixth boss 66 on the locking block 4. It should be noted that, when the door opened left/right is not required to be considered, the middle shifting peach 33 and the outer shifting peach 34 can be also set to be an integral structure, that is, the second boss 62 and the third boss 63 are both arranged on the second shifting peach 32, so that the functions of locking, unlocking and back locking can be realized.

In this embodiment, a second slider 41 is further disposed on one side of the fourth boss 64, and a second chute 12 for accommodating the second slider 41 is disposed on the housing 1, and the second chute 12 is arc-shaped for limiting the rotation angle of the lock block 4. Specifically, in fig. 1a, when the lock block 4 rotates counterclockwise, the second slider 41 is stopped after abutting against the right end of the second chute 12; when the lock block 4 rotates clockwise, the second slider 41 is stopped after abutting the left end of the second chute 12. As shown in fig. 1a and 1b, the housing 1 is further provided with a first spring 51, one end of the first spring 51 is hinged to the spring shaft 14 in the housing 1, the other end is hinged to the second slider 41, and the first spring 51 applies a force to the lock block 4, so that the second slider 41 can be abutted against the end of the second chute 12, and the lock block 4 can be in a more stable state when the lock body is unlocked or unlocked, thereby preventing the lock body from being locked or unlocked by mistake. The spring shaft 14 is disposed at a side center of the second chute 12, and the first spring 51 is a torsion spring having a tendency to be outwardly opened. As shown in fig. 1a, when the second slider 41 is at the right end of the second chute 12, the force applied to the second slider 41 by the first spring 51 is directed to the upper right, so that the lock block 4 can be stably maintained in the state when not locked; as shown in fig. 2a, when the second slider 41 is at the left end of the second chute 12, the force applied to the second slider 41 by the first spring 51 is directed to the upper left, so that the lock block 4 can be stably maintained in the state at the time of back locking. In other embodiments, the second chute 12 may be changed to two stoppers for restricting the positions of the left and right ends of the second slider 41 during sliding, and the positioning function may be performed in cooperation with the first spring 51. In other embodiments, the first spring 51 may be changed from a torsion spring to a compression spring, and the second slider 41 may be made to abut against both ends of the second chute 12.

In addition, in this embodiment, a positioning plate 9 and a third spring 53 are also provided in the housing 1 for assisting in positioning the individual dial when the lock body is assembled. Referring to fig. 1a to 2b, one end of the positioning plate 9 is rotatably disposed on a spring shaft 14 in the housing 1, and the other end is provided with a positioning surface, which is a plane, that is, the other end of the positioning plate 9 is a plane plate body. The third spring 53 is provided in the housing 1, and applies a force to the positioning plate 9 toward the first dial 31, so that the positioning plate 9 can be closely abutted against the side face of each dial. The first dial peach 31, the middle dial peach 33 and the outer dial peach 34 in this embodiment are provided with planar positioning surfaces on one side, which can be close to the positioning surfaces on the positioning plate 9 during assembly, and at this time, the side surfaces of the first boss 61 and the second boss 62 are abutted on the unlocking clamping table 24, and the side surface of the third boss 63 is abutted on the limiting column 13, so that each dial peach can be positioned accurately. Needless to say, the positioning surface is changed into other shapes, such as wave-shaped, arc-shaped and the like, and the peach pulling limiting function can be achieved. The third spring 53 is a torsion spring in this embodiment, but in other embodiments it can be modified to be a compression spring, as well as to enable the positioning plate 9 to abut against the side of the dial.

Also disclosed in this embodiment is a keyless door lock, employing the above lock body structure. Fig. 5a shows the structure of the keyless door lock under the view angle of one side in the door, fig. 5b shows the structure of the keyless door lock under the view angle of one side outside the door, and in the two figures, the structure of the shell 1 is hidden to show the connection relationship between the handle and the lock body structure; fig. 6a shows an exploded structure of the emergency release structure in this embodiment at a view of one side inside the door, and fig. 6b shows an exploded structure of the emergency release structure in this embodiment at a view of one side outside the door.

Referring to fig. 5a to 6b, the keyless door lock includes a first handle 71 and a second handle 72 disposed at both sides of a lock body structure. One end of the first handle 71 is inserted into a square core hole in the middle of the first dial 31, and is used as a handle on one side in the door, so that an unlocking/back locking function can be realized; one end of the second handle 72 is inserted into a square core hole in the middle of the second dial peach 32, namely into square core holes of the middle dial peach 33 and the outer dial peach 34, and can be used as a handle on one side outside a door to rotate to unlock the door only under the condition of no back locking. In yet another embodiment, the first handle 71 may be inserted into a square core hole in the middle of the outer dial 34, and used as a handle on one side of the door to realize the unlocking/locking functions; and one end of the second handle 72 is inserted into the square core holes of the middle shifting peach 33 and the first shifting peach 31, and can be used as a handle at one side outside the door, and unlocking can be realized only by rotating under the condition of no back locking. The keyless lock in the two embodiments can be applied to left-and right-opening doors, respectively.

In addition, in this embodiment, a transmission bar 73 capable of rotating synchronously with the locking block 4 is further disposed in the middle of the locking block 4 in a penetrating manner, and two ends of the transmission bar 73 extend to the outside of the casing 1, so that the lock body can be used for emergency unlocking and displaying whether the lock body is in a back locking state.

Specifically, a status pin 74 connected to the transmission bar 73 is provided on the door lock near the door inner side, and as shown in fig. 5a and 5b, the status pin 74 is fixedly connected to the transmission bar 73 and is rotatably provided on the inner panel 75. When the sixth boss 66 abuts against the third boss 63, the lock body is in a locked state, and the state needle 74 is pointed to the first preset position; when the sixth boss 66 gradually leaves the third boss 63, the state pin 74 gradually points to the second preset position until the lock body is in the state after the lock body is released, and the state pin 74 points to the second preset position. For example, a red mark and a green mark may be used to represent the first preset position and the second preset position, respectively. When the status pin 74 points to the red mark, the lock body is in a back locking state, and the first handle 71 needs to be pressed down to release the back locking state; when the status pin 74 points to the green mark, it indicates that the lock body is not in the locked state, and the first handle 71 needs to be lifted up to achieve the locking. By setting the status pin 74, it is possible for the user to easily learn whether the door lock is in the unlocked state, so that the door lock can be unlocked in a targeted manner.

In this embodiment, an emergency unlocking structure connected to the transmission bar 73 is provided on the door lock on the side close to the outside of the door, and includes an emergency toggle 77, a connection block 78, and a barrier 79. The emergency knob 77 is rotatably provided on the outer panel 76, and a bar groove is provided at an outer end thereof, and a user can rotate the emergency knob 77 using a plate-shaped tool. The outer panel 76 is provided with a through hole for receiving the groove portion so that a user can rotate the emergency knob 77 from the door outer side.

The outer periphery of the emergency toggle 77 is provided with a first clamping table 81 protruding outwards, and meanwhile, the outer side panel 76 is provided with a first clamping groove 83 capable of accommodating the first clamping table 81, and the first clamping table 81 can slide in the first clamping groove 83. When the lock body is not locked, the first clamping table 81 is positioned at the middle position of the first clamping groove 83, and when the lock body is locked, the first clamping table 81 is abutted against one side end of the first clamping groove 83. The end of the transmission bar 73 is provided with a second clamping table 82 protruding outwards, one end of the inner side of the emergency toggle 77 is provided with a groove for accommodating the end of the transmission bar 73 and a second clamping groove 84 for accommodating the second clamping table 82, and the second clamping table 82 can slide in the second clamping groove 84 along with the transmission bar 73. When the lock body is not locked, the second clamping table 82 is positioned at the middle position of the second clamping groove 84, and when the lock body is locked, the second clamping table 82 is abutted against one side end of the second clamping groove 84. Therefore, when the user does not turn the emergency dial 77 from the outside, the user can only contact the first engagement portion 81 with the end portion of the first engagement portion 83, and at this time, the second engagement portion 84 contacts the second engagement portion 82, and the driver 73 cannot be turned any more, so that the reverse lock body cannot be realized from the door outside side. When the lock body is locked, the second clamping table 82 abuts against one side end of the second clamping groove 84, for example, the left side end in fig. 6a, and at this time, the emergency toggle 77 is rotated in the counterclockwise direction in the drawing, so that the transmission bar 73 is rotated counterclockwise, and the locking is released. In other words, unlocking can only be achieved on the outside of the door.

The connecting block 78 is sleeved on the end part of the transmission bar 73, one end of the connecting block is rotationally arranged in the groove on the inner side of the emergency toggle 77, the other end of the connecting block is rotationally arranged in the groove on the outer side of the baffle 79, and the radial shaking of the end part of the transmission bar 73 can be limited, so that the transmission bar 73 only has rotational freedom degree, and the stability of the lockset is improved. The baffle 79 can limit the emergency toggle 77 and the linkage block in the space between the baffle 79 and the outer side panel 76, so that the stability of the lock is further improved.

In the above, an emergency unlocking structure is shown that can only release the back lock, in other embodiments, one end of the transmission bar 73 may be disposed in a through hole on the outer panel 76 as an emergency unlocking structure, and the back lock may be released by directly rotating the transmission bar 73 when in use.

The keyless door lock is particularly suitable for indoor doors such as bathrooms, old people rooms, children rooms and the like, and has the advantages that: the door lock has simple structure, low cost, clear and concise linkage relation and difficult damage of the structure; the lock body is mounted before and after, is easy to mount and has high practicability; the requirement on the handle structure is not high, and the processes of locking, unlocking and back locking are extremely simple no matter the handle is a long handle or a spherical handle. For example, when the long-handle is used, the door inner handle can be locked by lifting the door inner handle upwards, the door inner handle can be unlocked by pressing down, after the door inner handle is locked, the door inner handle can be unlocked from outdoor emergency without special tools, and a common screwdriver and the like can rotate the emergency toggle to unlock. In addition, after the door is unlocked by mistake, the door can be automatically unlocked when the door is closed.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (11)

1. A lock body structure, comprising:

a housing;

the lock tongue assembly is arranged in the shell in a sliding manner, the lock tongue assembly comprises a lock tongue, a driving frame and a second spring, the inner side of the lock tongue is connected to the driving frame, one side of the second spring is abutted to the driving frame and applies acting force towards one side of the lock tongue, one side of the second spring is provided with an unlocking clamping table, and the unlocking clamping table is arranged on the driving frame;

the first poking peach is rotatably arranged in the shell, and a first boss with one side surface capable of being abutted against the unlocking clamping table is arranged on the periphery of the first poking peach;

the second peach pulling device comprises a shell, a second lug boss, a third lug boss, a first lug boss, a second lug boss, a third lug boss and a locking mechanism, wherein the second lug boss is rotatably arranged in the shell, one side of the second lug boss can be abutted against the unlocking clamping table, one side of the second lug boss is abutted against the limiting column in the shell, the second peach pulling device comprises a middle peach pulling part and an outer peach pulling part, the second lug boss is arranged on the outer peach pulling part, and the third lug boss is arranged on the middle peach pulling part; the middle poking peach and the outer poking peach of the second poking peach are of an integrated structure or of a split structure;

the locking block is rotatably arranged in the shell, and a fourth boss, a fifth boss and a sixth boss are arranged on the periphery, wherein the side surface of the fourth boss can be abutted against the end surface of the lock tongue assembly, the side surface of the fifth boss can be abutted against the other side surface of the first boss, and the sixth boss can be abutted against the other side surface of the third boss; wherein the method comprises the steps of

When the fourth boss is abutted on the end face of the driving frame, the sixth boss is abutted on the third boss and limits the rotation of the second poking peach; when the first shifting peach or the second shifting peach rotates, the unlocking clamping table can be pushed to move inwards, so that the lock tongue enters the shell; when the lock tongue assembly slides into the lock body, the fourth boss can be pushed to move inwards, so that the sixth boss is far away from the third boss.

2. The lock body structure of claim 1, wherein,

the shell is internally provided with a second sliding groove or a stop block for limiting the rotation range of the locking block, the locking block is provided with a second sliding block which can be accommodated in the second sliding groove or between the stop blocks, and the shell is internally provided with a first spring, one end of which is hinged on a spring shaft in the shell, and the other end of which is hinged on the locking block; wherein the method comprises the steps of

The acting force applied by the first spring to the locking block can enable the second sliding block to be abutted against the end part of the second sliding groove or the stop block.

3. The lock body structure of claim 1, further comprising:

one end of the positioning plate is rotatably arranged in the shell, and the other end of the positioning plate is provided with a positioning surface;

the third spring is arranged in the shell and applies acting force towards one side of the first poking peach to the positioning plate; wherein the method comprises the steps of

The side of the first dial peach and the side of the second dial peach are provided with positioning surfaces which can be close to the positioning plate, when the positioning surfaces are close to the positioning plate, the side of the first boss and the side of the second boss are abutted to the unlocking clamping table, and the side of the third boss is abutted to the limiting column.

4. The lock body structure according to any one of claim 1 to 3,

and a seventh boss with a side surface capable of being abutted against the other side surface of the second boss is further arranged on the locking block.

5. A keyless door lock, comprising:

a lock body structure as claimed in any one of claims 1 to 4;

one end of the first handle is inserted into the middle of the first poking peach and rotates synchronously with the first poking peach;

and one end of the second handle is inserted into the middle part of the second poking peach and rotates synchronously with the second poking peach.

6. The keyless door lock of claim 5 wherein,

the middle part of the locking block is penetrated with a transmission bar which can rotate synchronously with the locking block, and two ends of the transmission bar extend to the outside of the shell.

7. The keyless door lock of claim 6, further comprising:

the state needle is arranged on one side of the door lock close to the inside of the door and is connected with the transmission bar; wherein the method comprises the steps of

When the sixth boss is abutted on the third boss, the state needle points to a first preset position, and when the sixth boss gradually leaves the third boss, the state needle gradually points to a second preset position.

8. The keyless door lock of claim 6, further comprising:

the emergency unlocking structure is arranged on one side of the door lock, which is close to the outer side of the door, and is connected with the transmission bar.

9. The keyless door lock of claim 8 wherein,

the emergency unlocking structure comprises an emergency toggle button with the outer end rotatably arranged on the outer side panel and the inner end sleeved at the end part of the transmission bar;

the periphery of the emergency toggle is provided with a first clamping table which is outwards protruded, and the outer side panel is provided with a first clamping groove which can accommodate the first clamping table;

the end of the transmission bar is provided with a second clamping table protruding outwards, and the inner end of the emergency toggle is provided with a groove for accommodating the end of the transmission bar and a second clamping groove for accommodating the second clamping table.

10. The keyless door lock of claim 9, wherein the emergency unlocking mechanism further comprises:

the connecting block is sleeved at the end part of the transmission bar, one end of the connecting block is rotatably arranged in a groove at the inner end of the emergency toggle, and the other end of the connecting block is rotatably arranged in a groove at the outer side of the baffle;

the baffle is fixedly connected to the outer side panel, and the emergency toggle and the linkage block are accommodated between the baffle and the outer side panel.

11. A keyless door lock, comprising:

the lock body structure includes: a housing; the lock tongue assembly is arranged in the shell in a sliding way, and an unlocking clamping table is arranged on one side of the lock tongue assembly; the first poking peach is rotatably arranged in the shell, and a first boss with one side surface capable of being abutted against the unlocking clamping table is arranged on the periphery of the first poking peach; the second poking peach is rotatably arranged in the shell, and the periphery of the second poking peach is provided with a second boss with one side surface capable of being abutted against the unlocking clamping table and a third boss with one side surface capable of being abutted against the limiting column in the shell; the locking block is rotatably arranged in the shell, and a fourth boss, a fifth boss and a sixth boss are arranged on the periphery, wherein the side surface of the fourth boss can be abutted against the end surface of the lock tongue assembly, the side surface of the fifth boss can be abutted against the other side surface of the first boss, and the sixth boss can be abutted against the other side surface of the third boss; the second poking peach comprises a middle poking peach and an outer poking peach, the second boss is arranged on the outer poking peach, and the third boss is arranged on the middle poking peach; a seventh boss with a side surface capable of being abutted against the other side surface of the second boss is further arranged on the locking block;

one end of the first handle is inserted into the middle of the outer poking peach and rotates synchronously with the outer poking peach;

one end of the second handle is inserted into the middle parts of the first poking peach and the middle poking peach and rotates synchronously with the first poking peach and the middle poking peach;

wherein when the fourth boss abuts against the end face of the lock tongue assembly, the sixth boss abuts against the third boss and restricts rotation of the first dial-up peach; when the first shifting peach or the second shifting peach rotates, the unlocking clamping table can be pushed to move inwards, so that the lock tongue enters the shell; when the lock tongue assembly slides into the lock body, the fourth boss can be pushed to move inwards, so that the sixth boss is far away from the third boss.