Spring bolt assembly and lock

Abstract

The spring bolt assembly and the lockset both comprise a first shell, a second shell, a spring bolt, a spring bolt, a spring bolt, a spring bolt and a spring bolt, the second shell is telescopically arranged in the length direction of the first shell, and a tongue body is telescopically arranged at the end, away from the first shell, of the second shell; the driving assembly is arranged between the first shell and the second shell in a sliding mode, the driving assembly comprises a first driving piece and a second driving piece which are arranged in the sliding direction of the driving assembly, the first driving piece and the second driving piece are connected with the shifting wheel and the tongue body respectively, and the first driving piece and the second driving piece are connected through a telescopic adjusting mechanism so as to adjust the length size of the driving assembly; and the telescopic adjusting mechanism can prevent the first driving piece and the second driving piece from moving relatively so as to shorten the length size of the driving assembly. According to the spring bolt assembly and the lockset of the structure, the telescopic adjusting mechanism is used for adjusting the length size of the driving assembly to adjust the center distance of the spring bolt assembly, the adjusting convenience is high, the spring bolt assembly and the lockset are suitable for the spring bolt assembly adopting an inclined bolt and a dead bolt, and universality is improved.

Description

Technical Field

[0001] The present invention relates to the technical field related to locks, and in particular to a lock tongue assembly and a lock. Background Art

[0002] The bolt assembly is the main mechanism for the door lock to achieve the open or closed state. The center distance between the thumbwheel and the bolt body of the bolt assembly is different, which defines bolt assemblies with different installation specifications. Currently, the center distances of the commonly used bolt assemblies are 60mm and 70mm. In the existing bolts, the length of the bolt is generally fixed and cannot be adjusted, resulting in the inability to adapt to the installation needs of different center distance requirements.

[0003] Among them, the tongue of the lock tongue assembly has two types: oblique tongue and dead tongue. In order to solve the problem that the center distance of the lock tongue assembly cannot be adjusted, since the dead tongue does not adopt a spring mechanism, an adjustment mechanism for adjusting the center distance of the dead tongue has appeared in the relevant technology. The structure of the adjustment mechanism is complicated and often requires professional personnel to install and debug. After the center distance is adjusted, the length dimension accuracy and stability are low. Moreover, since the oblique tongue adopts a spring mechanism, this adjustment mechanism is often unable to adapt to the lock tongue assembly of the oblique tongue, and has low versatility. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one of the purposes of the present invention is to provide a bolt assembly that can conveniently adjust the center distance and is suitable for inclined bolts and dead bolts, thereby improving versatility and convenience of use; the second purpose is to provide a lock using the bolt assembly.

[0005] A locking tongue assembly according to an embodiment of the first aspect of the present invention comprises: a first shell, wherein the first shell is rotatably provided with a thumbwheel; a second shell, which is telescopically arranged along the length direction of the first shell, and a tongue body is telescopically arranged at one end of the second shell away from the first shell; a driving assembly, which is slidably arranged between the first shell and the second shell, and the driving assembly comprises a first driving member and a second driving member arranged along its sliding direction, the first driving member and the second driving member are respectively connected to the thumbwheel and the tongue body, the first driving member and the second driving member are connected to each other by a telescopic adjustment mechanism to adjust the length dimension of the driving assembly, and the telescopic adjustment mechanism can prevent the first driving member and the second driving member from moving relative to each other to shorten the length dimension of the driving assembly.

[0006] A locking tongue assembly according to an embodiment of the present invention has at least the following beneficial effects:

[0007] The first shell and the second shell of the lock tongue assembly of the above structure can be relatively telescopic and movable. The first driving member in the first shell and the second driving member in the second shell are connected by a telescopic adjustment mechanism to adjust the length of the driving assembly, thereby adjusting the distance between the tongue body and the thumbwheel to adjust the center distance of the lock tongue assembly. The adjustment is convenient, and because the first driving member and the second driving member are respectively connected to the thumbwheel and the tongue body, it is suitable for adjusting the center distance of lock tongue assemblies using oblique tongues and dead tongues, thereby improving versatility.

[0008] In some embodiments of the present invention, the telescopic adjustment mechanism includes at least two shifting grooves arranged at intervals along the length direction of the driving assembly and a positioning member combined with and separated from the shifting grooves, the shifting groove is provided on one of the first driving member and the second driving member, the positioning member is movably provided on the other of the first driving member and the second driving member, and the positioning member is connected to an elastic member that drives it to be combined with the shifting groove.

[0009] In some embodiments of the present invention, the positioning member includes a swing arm rotatably arranged on the first driving member and a positioning column arranged on the swing arm, all of the gear slots are arranged at intervals on the second driving member, and the second driving member is provided with an adjustment guide groove connecting all of the gear slots, the positioning column can slide back and forth along the adjustment guide groove to correspond to any of the gear slots, and the elastic member drives the swing arm to swing until the positioning column enters the corresponding gear slot.

[0010] In some embodiments of the present invention, a stop surface perpendicular to the sliding direction of the drive assembly is provided at one end of the shift groove close to the tongue body, and an arc guide surface opposite to the stop surface is provided at the other end of the shift groove, and the arc guide surface is connected to the stop surface of the other shift groove through the adjustment guide groove, and anti-slip structures are provided between the first driving member and the first shell, as well as between the second driving member and the second shell.

[0011] In some embodiments of the present invention, the swing arm has limiting grooves and positioning grooves distributed circumferentially at intervals around its rotation axis, the elastic member is an elastic pressure plate with one end fixed to the first driving member, and the other end of the elastic pressure plate is provided with a hook, the hook can elastically contact the limiting groove and move in the limiting groove to allow the positioning column to enter and exit the gear slot, and the hook can be clamped in the positioning groove to keep the positioning column in the adjustment guide groove and leave the gear slot.

[0012] In some embodiments of the present invention, an unlocking groove is provided at the end of the adjustment guide groove away from the second driving member, and the arc guide surface of the gear slot away from the second driving member is connected to the unlocking groove. The positioning column can move along the arc guide surface to the unlocking groove so that the hook portion is engaged with the positioning groove. An unlocking slope surface is provided at the end of the adjustment guide groove close to the second driving member. When the positioning column moves along the adjustment guide groove until it contacts the unlocking slope surface, the hook portion disengages from the positioning groove and enters the limiting groove.

[0013] In some embodiments of the present invention, the limiting groove is an L-shaped groove, and the positioning groove is a U-shaped groove. The L-shaped groove includes a short side plane segment pointing to the rotation axis of the swing arm and a long side plane segment orthogonal to the short side plane segment. The end of the long side plane segment is connected to one side of the U-shaped groove through an arc transition surface. The hook portion passes through the long side plane segment and the arc transition surface in sequence to enter the U-shaped groove, and the hook portion can move along the inner side wall of the U-shaped groove to the arc transition surface.

[0014] In some embodiments of the present invention, the thumbwheel includes a cylinder, a transmission groove is provided in the middle of the cylinder, a cam portion which is roughly a semicircular ring is provided on the outer peripheral wall of the cylinder, and coplanar driving planes are provided at both ends of the cam portion, the first driving member has a contoured arc groove adapted to the outer peripheral wall of the cylinder, the side wall of the first driving member close to the thumbwheel can contact two driving planes at the same time, a rotation limiting structure is provided between the cylinder and the first shell, a slip limiting structure is provided between the first driving member and the first shell, the first driving member is connected to a long extension member parallel to the sliding direction of the driving assembly, the swing arm is rotatably arranged at the end of the long extension member, the second driving member includes a groove member with a U-shaped cross-section, the long extension member is slidably arranged on the groove member and the swing arm is located inside the groove member, the opposite side walls of the groove member are each provided with an adjustment guide groove and a plurality of corresponding gear slots, and the positioning column is penetrated through the opposite side walls of the groove member.

[0015] In some embodiments of the present invention, the tongue body is an oblique tongue, and a spring member is connected between the second shell and the oblique tongue to drive the oblique tongue to extend out of the second shell. A rotating arm is rotatably arranged inside the second shell, one end of the rotating arm is movably connected to the oblique tongue, and the other end of the rotating arm contacts the end of the second driving member, and the dial rotates to push the driving assembly to slide toward the oblique tongue, thereby driving the rotating arm to rotate to drive the oblique tongue to retract.

[0016] The lock according to the second embodiment of the present invention comprises a bolt assembly using any of the above technical solutions. The lock using the above bolt assembly is convenient for adjusting the center distance of the bolt assembly and is suitable for using oblique bolts and dead bolts, thereby improving versatility.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 It is a structural schematic diagram of the lock tongue assembly of the present invention when the center distance is at a minimum value and in a locked state;

[0020] Figure 2 for Figure 1 A schematic diagram of the structural decomposition of an embodiment;

[0021] Figure 3 for Figure 1 A schematic diagram of the internal structure of the locking tongue assembly of the embodiment in an unlocked state;

[0022] Figure 4 It is a structural schematic diagram of the lock tongue assembly of the present invention when the center distance is at a maximum value and in a locked state;

[0023] Figure 5 for Figure 4 A schematic diagram of the internal structure of the locking tongue assembly of an embodiment;

[0024] Figure 6 The present invention is a structural schematic diagram of an embodiment in which a first driving member, a second driving member and a telescopic adjustment mechanism are combined.

[0025] Reference numerals:

[0026] The first shell 100; the dial 200; the cylinder 210; the transmission groove 220; the cam portion 230; the driving plane 231; the second shell 300; the tongue 400; the driving assembly 500; the first driving member 510; the contoured arc groove 511; the long extension member 512; the second driving member 520; the adjustment guide groove 521; the unlocking groove 522; the unlocking slope 523; the telescopic adjustment mechanism 600; the gear groove 610; the stop surface 611; the arc guide surface 612; the positioning member 620; the swing arm 621; the positioning column 622; the limiting groove 623; the positioning groove 624; the arc transition surface 625; the elastic member 630; the hook portion 631; the rotating arm 700; the rotation limiting structure 810; the slip limiting structure 820. DETAILED DESCRIPTION

[0027] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Reference Figures 1 to 4A bolt assembly according to an embodiment of the present invention comprises: a first shell 100, wherein the first shell 100 is rotatably provided with a dial wheel 200; a second shell 300, which is telescopically arranged along the length direction of the first shell 100, and a tongue body 400 is telescopically arranged at one end of the second shell 300 away from the first shell 100; a driving assembly 500, which is slidably arranged between the first shell 100 and the second shell 300, and the driving assembly 500 comprises a first driving member 510 and a second driving member 520 arranged along the sliding direction thereof, the first driving member 510 and the second driving member 520 are respectively connected to the dial wheel 200 and the tongue body 400, the first driving member 510 and the second driving member 520 are connected to each other through a telescopic adjustment mechanism 600 to adjust the length dimension of the driving assembly 500, and the telescopic adjustment mechanism 600 can prevent the first driving member 510 and the second driving member 520 from moving relative to each other to shorten the length dimension of the driving assembly 500.

[0031] The first shell 100 and the second shell 300 of the lock tongue assembly of the above structure can be relatively telescopic and movable. The first driving member 510 in the first shell 100 and the second driving member 520 in the second shell 300 are connected by the telescopic adjustment mechanism 600 to adjust the length of the driving assembly 500, thereby adjusting the distance between the tongue body 400 and the dial 200 to adjust the center distance of the lock tongue assembly. The adjustment is convenient, and because the first driving member 510 and the second driving member 520 are respectively connected to the dial 200 and the tongue body 400, they are suitable for adjusting the center distance of lock tongue assemblies using oblique tongues and dull tongues, thereby improving versatility.

[0032] It should be noted that when the telescopic adjustment mechanism 600 extends the distance between the first drive member 510 and the second drive member 520 or shortens the distance between the first drive member 510 and the second drive member 520, the relative position of the first drive member 510 in the first housing 100 does not need to be changed, that is, the connection relationship between the first drive member 510 and the thumbwheel 200 does not change. Similarly, the relative position of the second drive member 520 in the second housing 300 does not need to be changed, that is, the connection relationship between the second drive member 520 and the tongue 400 does not change. After the telescopic adjustment mechanism 600 adjusts the length of the drive assembly 500, the drive rod of the door lock drives the thumbwheel 200 to rotate, thereby driving the first drive member 510 and the second drive member 520 to move toward or away from the tongue 400, and then the connecting rod structure between the second drive member 520 and the tongue 400 is used to drive the tongue 400 to retract relative to the second housing 300, thereby realizing the unlocking function. In addition, since the telescopic adjustment mechanism 600 can prevent the first driving member 510 and the second driving member 520 from moving relative to each other to shorten the length of the driving assembly 500, the second driving member 520 can keep the length of the driving assembly 500 unchanged when applying force to the tongue body 400, ensuring that the locking tongue assembly can always work normally.

[0033] Among them, see Figure 1 and Figure 4 In this embodiment, the second shell 300 is slidably disposed inside the first shell 100. When the length of the driving component 500 becomes longer, the second shell 300 extends from the first shell 100. When the length of the driving component 500 becomes shorter, the second shell 300 retracts into the first shell 100.

[0034] See also Figure 3 and Figure 5In some embodiments of the present invention, the telescopic adjustment mechanism 600 includes at least two shifting grooves 610 arranged at intervals along the length direction of the driving assembly 500 and a positioning member 620 combined with and separated from the shifting grooves 610, the shifting groove 610 is provided at one of the first driving member 510 and the second driving member 520, the positioning member 620 is movably provided at the other of the first driving member 510 and the second driving member 520, and the positioning member 620 is connected to an elastic member 630 that drives it to be combined with the shifting groove 610. It can be understood that under the elastic force applied by the elastic member 630 to the positioning member 620, the positioning member 620 enters one of the shifting grooves 610 to fix the relative position between the first driving member 510 and the second driving member 520, thereby forming a driving component 500 with a fixed length dimension. When it is necessary to adjust the center distance of the lock tongue assembly, it is only necessary to overcome the force of the elastic member 630 to make the positioning member 620 disengage from the shifting groove 610 and move to another shifting groove 610, and then combine with the other shifting groove 610 again under the action of the elastic member 630, thereby forming a driving component 500 with a new length dimension. Such a telescopic adjustment mechanism 600 is easy to use and simple to operate. The combination of the positioning member 620 and each shifting groove 610 corresponds to the different center distance states of the lock tongue assembly. Specifically, the inlet and outlet of the gear slot 610 face upward, the direction in which the driving assembly 500 is subjected to the reaction force of the dial 200 and the tongue 400 is approximately horizontal, and the positioning member 620 abuts against the gear slot 610 and is not easily separated from the gear slot 610. Of course, in other embodiments, the telescopic adjustment mechanism 600 can also be replaced by a positioning pin or a fastening screw, which can be inserted into the first driving member 510 and the second driving member 520 to connect and fix the first driving member 510 and the second driving member 520.

[0035] See also Figure 3 , Figure 5 and Figure 6In some embodiments of the present invention, the positioning member 620 includes a swing arm 621 rotatably arranged on the first driving member 510 and a positioning column 622 arranged on the swing arm 621. All the gear slots 610 are arranged at intervals on the second driving member 520. The second driving member 520 is provided with an adjustment guide groove 521 that connects all the gear slots 610. The positioning column 622 can slide back and forth along the adjustment guide groove 521 to correspond to any of the gear slots 610. The elastic member 630 drives the swing arm 621 to swing until the positioning column 622 enters the corresponding gear slot 610. It can be understood that, driven by the elastic member 630, the positioning column 622 on the swing arm 621 elastically abuts against one of the gear slots 610. When the length of the drive assembly 500 needs to be adjusted, the swing arm 621 is driven to swing so that the positioning column 622 leaves the gear slot 610 and enters the adjustment guide slot 521. Then the positioning column 622 slides along the adjustment guide slot 521 to the vicinity of another gear slot 610. At this time, no force is applied to the swing arm 621. The swing arm 621 can be reset and swung under the action of the elastic member 630 to allow the positioning column 622 to enter the other gear slot 610, thereby realizing quick adjustment of the length of the drive assembly 500. It should be noted that if an external force is used to drive the swing arm 621 to swing until the positioning column 622 leaves the gear slot 610, the following method can be adopted: the swing arm 621 is fixed with a pivot, and the swing arm 621 is rotatably arranged on the first driving member 510 through the pivot, and at least one end of the pivot extends out of the first shell 100 to enable the user to rotate the pivot, and the first shell 100 is provided with a long through hole for the pivot to movably pass through, and the length direction of the long through hole is arranged along the sliding direction of the first driving member 510.

[0036] See also Figure 5 and Figure 6In some embodiments of the present invention, a stop surface 611 perpendicular to the sliding direction of the driving assembly 500 is provided at one end of the shifting groove 610 close to the tongue 400, and an arc guide surface 612 opposite to the stop surface 611 is provided at the other end of the shifting groove 610, and the arc guide surface 612 is connected to the stop surface 611 of the other shifting groove 610 through the adjustment guide groove 521, and anti-slip structures are provided between the first driving member 510 and the first shell 100, and between the second driving member 520 and the second shell 300. It should be noted that when the driving rod of the door lock drives the thumbwheel 200 to rotate, the thumbwheel 200 rotates to push the driving assembly 500 to move toward the tongue body 400, and the tongue body 400 reacts to the second driving member 520 so that the second driving member 520 has a movement tendency to move close to the first driving member 510. At this time, the stop surface 611 can abut against the positioning column 622 to prevent the second driving member 520 and the first driving member 510 from approaching each other, thereby avoiding the length of the driving assembly 500 from shortening, thereby ensuring that the lock tongue assembly can work normally to unlock. Due to the existence of the anti-detachment structure, the first driving member 510 cannot be completely separated from the first shell 100 when it can slide relative to the first shell 100, and the second driving member 520 cannot be completely separated from the second shell 300 when it can slide relative to the second shell 300. When it is necessary to extend the length of the driving assembly 500, it is only necessary to drive the second shell 300 to stretch outward relative to the first shell 100 to drive the second driving member 520 to extend relative to the first driving member 510, and the positioning column 622 climbs upward along the arc guide surface 612 of the gear groove 610 where it is located, and the swing arm 621 swings upward. The positioning column 622 leaves the original gear groove 610 and slides along the adjustment guide groove 521 to align with the inlet and outlet of another gear groove 610. Under the action of the elastic member 630, the swing arm 621 swings downward to allow the positioning column 622 to enter the other gear groove 610, thereby realizing the extension adjustment of the length of the driving assembly 500, without manually unlocking the angular position of the swing arm 621. It is very convenient to use and the structure is very clever.

[0037] See also Figure 6In some embodiments of the present invention, the swing arm 621 has limit grooves 623 and positioning grooves 624 distributed circumferentially at intervals around its rotation axis, the elastic member 630 is an elastic pressure plate fixed to the first driving member 510 at one end, and the other end of the elastic pressure plate is provided with a hook 631, the hook 631 can elastically contact the limit groove 623 and move in the limit groove 623 to make the positioning column 622 enter and exit the gear groove 610, the hook 631 can be clamped in the positioning groove 624 to keep the positioning column 622 in the adjustment guide groove 521 and leave the gear groove 610. It can be understood that when the length of the driving assembly 500 is extended, the second driving member 520 is driven to extend relative to the first driving member 510, and the positioning column 622 climbs upward along the arc guide surface 612 of the gear slot 610 where it is located, and the swing arm 621 swings upward, and the positioning column 622 leaves the original gear slot 610 and slides along the adjustment guide slot 521 to align with the inlet and outlet of another gear slot 610. Under the downward pressure of the elastic pressure plate, the positioning column 622 enters the other gear slot 610. During the whole process, the hook portion 631 of the elastic pressure plate always moves in the limit slot 623; when the swing arm 621 swings at a larger angle to make the hook portion 631 of the elastic pressure plate leave the limit slot 623 and enter the positioning slot 624, the positioning column 622 remains away from all the gear slots 610 to prevent the positioning column 622 from accidentally falling into a certain gear slot 610 when sliding along the adjustment guide slot 521, thereby achieving the movement of the positioning column 622 to the gear slot 610 closest to the tongue body 400, and the length dimension of the drive assembly 500 can be shortened to the minimum dimension.

[0038] It should be noted that, in the aforementioned embodiment, although the length of the drive assembly 500 can be extended without manually unlocking the angle position of the swing arm 621, when the length of the drive assembly 500 needs to be shortened, the angle position of the swing arm 621 needs to be manually unlocked and maintained, which causes inconvenience during use. Figure 3 , Figure 5 and Figure 6In some embodiments of the present invention, an unlocking groove 522 is provided at the end of the adjusting guide groove 521 away from the second driving member 520, and the arc guide surface 612 of the gear groove 610 away from the second driving member 520 is connected to the unlocking groove 522. The positioning column 622 can move along the arc guide surface 612 to the unlocking groove 522 so that the hook 631 is engaged with the positioning groove 624. An unlocking slope 523 is provided at the end of the adjusting guide groove 521 close to the second driving member 520. When the positioning column 622 moves along the adjusting guide groove 521 to contact the unlocking slope 523, the hook 631 disengages from the positioning groove 624 and enters the limiting groove 623. Specifically, the lowest height of the unlocking groove 522 is above the lowest height of the adjusting guide groove 521. When the positioning column 622 is located in the gear groove 610 away from the second driving member 520, the center distance of the lock tongue assembly is the largest. If the center distance of the lock tongue assembly needs to be adjusted to the minimum, it is only necessary to continue to drive the second shell 300 to stretch outward relative to the first shell 100. When the positioning column 622 moves to the unlocking groove 522 along the arc guide surface 612, the swing arm 621 produces a large angle of deflection so that the hook 631 can be engaged in the positioning groove 624. At this time, the angular position of the swing arm 621 remains unchanged, and then the second shell 300 is driven to retract relative to the first shell 100. The positioning column 622 moves along the adjusting guide groove 521 until it contacts the unlocking slope 523. The swing arm 621 rotates to allow the hook 631 to disengage from the positioning groove 624. Under the action of the elastic pressure plate, the positioning column 622 can return to the gear groove 610 closest to the tongue body 400, and the center distance of the lock tongue assembly is adjusted to the minimum.

[0039] See also Figure 6 In some embodiments of the present invention, the limiting groove 623 is an L-shaped groove, the positioning groove 624 is a U-shaped groove, the L-shaped groove includes a short side plane segment pointing to the rotation axis of the swing arm 621 and a long side plane segment orthogonal to the short side plane segment, the end of the long side plane segment is connected to one side of the U-shaped groove through an arc transition surface 625, the hook portion 631 passes through the long side plane segment and the arc transition surface 625 in sequence to enter the U-shaped groove, and the hook portion 631 can move along the inner side wall of the U-shaped groove to the arc transition surface 625. When the second shell 300 moves away from the first shell 100, the second driving member 520 extends relative to the first driving member 510 to extend the length of the driving assembly 500, and the positioning column 622 reciprocates between the adjustment guide groove 521 and each gear groove 610. The hook 631 is always located in the L-shaped groove. The long side plane section provides a sufficiently large contact area for the displacement of the hook 631, and the arc transition surface 625 assists the hook 631 to smoothly enter the U-shaped groove and facilitates the hook 631 to return from the U-shaped groove to the L-shaped groove.

[0040] See also Figure 2 and Figure 3 In some embodiments of the present invention, the thumbwheel 200 includes a cylinder 210, a transmission groove 220 is provided in the middle of the cylinder 210, a cam portion 230 which is roughly in the shape of a semicircular ring is provided on the outer peripheral wall of the cylinder 210, and coplanar driving planes 231 are provided at both ends of the cam portion 230, the first driving member 510 has a contoured arc groove 511 adapted to the outer peripheral wall of the cylinder 210, and the side wall of the first driving member 510 close to the thumbwheel 200 can contact two driving planes 231 at the same time, a rotation limiting structure 810 is provided between the cylinder 210 and the first shell 100, and a slip limiting structure 820 is provided between the first driving member 510 and the first shell 100, see Figure 5 and Figure 6 The first driving member 510 is connected to a long extension member 512 parallel to the sliding direction of the driving assembly 500, and the swing arm 621 is rotatably arranged at the end of the long extension member 512. The second driving member 520 includes a groove member with a U-shaped cross-section. The long extension member 512 is slidably arranged on the groove member and the swing arm 621 is located inside the groove member. The opposite side walls of the groove member are each provided with an adjustment guide groove 521 and a plurality of corresponding gear grooves 610, and the positioning column 622 is penetrated through the opposite side walls of the groove member. It is understandable that when the tongue 400 is extended, the first driving member 510 is close to the side wall of the thumbwheel 200 and contacts the two driving planes 231 at the same time, preventing the thumbwheel 200 from rotating easily. When the driving rod on the door lock that passes through the transmission groove 220 drives the thumbwheel 200 to rotate clockwise or counterclockwise, the cam portion 230 contacts one of the driving planes 231 to push the first driving member 510 and the second driving member 520 to move toward the tongue 400. The second driving member 520 retracts the tongue 400 through the connecting rod structure, and the thumbwheel 200 only needs to rotate a small angle to unlock. Among them, the long extension member 512 slidingly arranged in the groove member also plays a guiding role during telescopic adjustment, which is also conducive to the compactness of the structural layout. The rotation limiting structure 810 is used to limit the rotation angle of the dial 200. In this embodiment, the rotation limiting structure 810 includes an arc hole axially arranged on the first housing 100 around the cylinder 210 and a first guide portion arranged on the dial 200 and reciprocatingly sliding in the arc hole. The sliding limiting structure 820 is used to limit the sliding stroke of the first driving member 510. In this embodiment, the sliding limiting structure 820 includes a waist-shaped hole arranged on the first housing 100 and a second guide portion arranged on the first driving member 510 and reciprocatingly sliding in the waist-shaped hole. The rotation limiting structure 810 and the sliding limiting structure 820 are common structures in the art and are not further described here.

[0041] See also Figure 2 and Figure 3 In some embodiments of the present invention, the tongue body 400 is an inclined tongue, and a spring member for driving the inclined tongue to extend out of the second shell 300 is connected between the second shell 300 and the inclined tongue. A rotating arm 700 is rotatably arranged inside the second shell 300, and one end of the rotating arm 700 is movably connected to the inclined tongue, and the other end of the rotating arm 700 contacts the end of the second driving member 520. The dial 200 rotates to push the driving assembly 500 to slide toward the inclined tongue, thereby driving the rotating arm 700 to rotate to drive the inclined tongue to retract. Specifically, the lower end of the rotating arm 700 hooks the preset installation groove of the inclined tongue, and the spring member drives the inclined tongue to extend while making the upper end of the rotating arm 700 abut against the end of the second driving member 520. When the dial 200 rotates to push the first driving member 510 and the second driving member 520 to move toward the direction of the inclined tongue, the second driving member 520 drives the rotating arm 700 to rotate so that the lower end of the rotating arm 700 drags the inclined tongue to retract, thereby achieving unlocking.

[0042] The invention also discloses a lock, comprising the above-mentioned bolt assembly. The lock adopting the above bolt assembly is convenient for adjusting the center distance of the bolt assembly, and is suitable for using the inclined bolt and the dead bolt, thereby improving the versatility.

[0043] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0044] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A locking tongue assembly, characterized in that: include: A first housing (100), wherein the first housing (100) is rotatably provided with a dial wheel (200); A second shell (300) is telescopically arranged along the length direction of the first shell (100), and a tongue (400) is telescopically arranged at one end of the second shell (300) away from the first shell (100); A driving assembly (500) is slidably disposed between the first shell (100) and the second shell (300), and the driving assembly (500) includes a first driving member (510) and a second driving member (520) arranged along its sliding direction, the first driving member (510) and the second driving member (520) are respectively connected to the dial (200) and the tongue (400), the first driving member (510) and the second driving member (520) are connected to each other via a telescopic adjustment mechanism (600) to adjust the length of the driving assembly (500), and the telescopic adjustment mechanism (600) can prevent the first driving member (510) and the second driving member (520) from moving relative to each other to shorten the length of the driving assembly (500).

2. A locking tongue assembly according to claim 1, characterized in that: The telescopic adjustment mechanism (600) comprises at least two shifting grooves (610) arranged at intervals along the length direction of the driving assembly (500) and a positioning member (620) combined with and separated from the shifting grooves (610), wherein the shifting groove (610) is provided at one of the first driving member (510) and the second driving member (520), and the positioning member (620) is movably provided at the other of the first driving member (510) and the second driving member (520), and the positioning member (620) is connected to an elastic member (630) that drives it to be combined with the shifting groove (610).

3. A locking tongue assembly according to claim 2, characterized in that: The positioning member (620) comprises a swing arm (621) rotatably arranged on the first driving member (510) and a positioning column (622) arranged on the swing arm (621); all the gear slots (610) are arranged at intervals on the second driving member (520); the second driving member (520) is provided with an adjustment guide slot (521) connecting all the gear slots (610); the positioning column (622) can slide back and forth along the adjustment guide slot (521) to correspond to any of the gear slots (610); the elastic member (630) drives the swing arm (621) to swing until the positioning column (622) enters the corresponding gear slot (610).

4. A locking tongue assembly according to claim 3, characterized in that: A stop surface (611) perpendicular to the sliding direction of the driving assembly (500) is provided at one end of the shifting groove (610) close to the tongue body (400), and an arc guide surface (612) opposite to the stop surface (611) is provided at the other end of the shifting groove (610), and the arc guide surface (612) is connected to the stop surface (611) of the other shifting groove (610) through the adjusting guide groove (521), and anti-slip structures are provided between the first driving member (510) and the first shell (100), and between the second driving member (520) and the second shell (300).

5. A locking tongue assembly according to claim 4, characterized in that: The swing arm (621) is provided with limiting grooves (623) and positioning grooves (624) distributed circumferentially at intervals around its rotation axis; the elastic member (630) is an elastic pressure plate with one end fixed to the first driving member (510); the other end of the elastic pressure plate is provided with a hook portion (631); the hook portion (631) is capable of elastically contacting the limiting groove (623) and moving in the limiting groove (623) to allow the positioning column (622) to enter and exit the gear groove (610); the hook portion (631) can be engaged with the positioning groove (624) to allow the positioning column (622) to remain located in the adjustment guide groove (521) and leave the gear groove (610).

6. A locking tongue assembly according to claim 5, characterized in that: An unlocking groove (522) is provided at the end of the adjusting guide groove (521) away from the second driving member (520); the arc guide surface (612) of the shifting groove (610) away from the second driving member (520) is communicated with the unlocking groove (522); the positioning column (622) can move along the arc guide surface (612) to the unlocking groove (522) so that the hook (631) is engaged with the positioning groove (624); an unlocking slope surface (523) is provided at the end of the adjusting guide groove (521) close to the second driving member (520); when the positioning column (622) moves along the adjusting guide groove (521) to contact the unlocking slope surface (523), the hook (631) is separated from the positioning groove (624) and enters the limiting groove (623).

7. A locking tongue assembly according to claim 5, characterized in that: The limiting groove (623) is an L-shaped groove, and the positioning groove (624) is a U-shaped groove. The L-shaped groove includes a short side plane section pointing to the rotation axis of the swing arm (621) and a long side plane section orthogonal to the short side plane section. The end of the long side plane section is connected to one side of the U-shaped groove through an arc transition surface (625). The hook portion (631) passes through the long side plane section and the arc transition surface (625) in sequence to enter the U-shaped groove, and the hook portion (631) can move along the inner side wall of the U-shaped groove to the arc transition surface (625).

8. The bolt assembly according to claim 3, characterized in that: The thumbwheel (200) comprises a cylinder (210), a transmission groove (220) is provided in the middle of the cylinder (210), a cam portion (230) which is roughly in the shape of a semicircular ring is provided on the outer peripheral wall of the cylinder (210), and coplanar driving planes (231) are provided at both ends of the cam portion (230), the first driving member (510) has a contoured arc groove (511) adapted to the outer peripheral wall of the cylinder (210), the side wall of the first driving member (510) close to the thumbwheel (200) can contact two driving planes (231) at the same time, a rotation limiting structure (810) is provided between the cylinder (210) and the first shell (100), and the first driving member (510) ) and the first shell (100), a slip limiting structure (820) is provided between the first driving member (510) and the first shell (100), the first driving member (510) is connected to a long extension member (512) parallel to the sliding direction of the driving assembly (500), the swing arm (621) is rotatably arranged at the end of the long extension member (512), the second driving member (520) includes a groove member with a U-shaped cross-section, the long extension member (512) is slidably arranged on the groove member and the swing arm (621) is located inside the groove member, the opposite side walls of the groove member are each provided with an adjustment guide groove (521) and a plurality of corresponding gear grooves (610), and the positioning column (622) is penetrated through the opposite side walls of the groove member.

9. The bolt assembly according to claim 1, characterized in that: The tongue body (400) is an inclined tongue, a spring member is connected between the second shell (300) and the inclined tongue to drive the inclined tongue to extend out of the second shell (300), a rotating arm (700) is rotatably arranged inside the second shell (300), one end of the rotating arm (700) is movably connected to the inclined tongue, and the other end of the rotating arm (700) is in contact with the end of the second driving member (520), the dial (200) rotates to push the driving assembly (500) to slide toward the inclined tongue, thereby driving the rotating arm (700) to rotate to drive the inclined tongue to retract.

10. A lock, characterized in that: A locking tongue assembly comprising any one of claims 1-9.

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