Lock

Abstract

The utility model discloses a lock, belongs to the technical field of locks, solves the problem that the installation efficiency of a door lock is low, and adopts the technical scheme that the lock mainly comprises a spring bolt assembly and a lock cylinder assembly, the spring bolt assembly comprises an installation frame and a shell, the installation frame is provided with an inner hole, a spring bolt is arranged in the inner hole in a sliding manner, and the lock cylinder assembly is arranged in the shell. A push rod used for driving the spring bolt to slide in the inner hole in a reciprocating mode is arranged on the shell, the mounting frame and the shell are detachably connected in the direction perpendicular to the reciprocating sliding direction of the spring bolt, the spring bolt and the push rod are detachably connected in the direction perpendicular to the reciprocating sliding direction of the spring bolt, and a fastener is arranged between the spring bolt and the push rod. The fastener penetrates through the spring bolt in the reciprocating sliding direction of the spring bolt to be connected with the push rod so as to fix the spring bolt and the push rod. According to the utility model, the adaptability of the lock is improved, so that the mounting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of locks, in particular to a lock. Background Art

[0002] Common locks installed on doors generally include a lock tongue assembly and a lock core assembly. The lock tongue assembly and the lock core assembly can be separated into two independent parts. After the two are connected, transmission is realized. The user can unlock the lock core with an adapted key and then drive the lock tongue of the lock tongue assembly to unlock the lock. When consumers need to replace the lock on the door, they generally look for a lock core assembly that is adapted to the original lock. However, for some old locks, they may have been discontinued, and they have no choice but to replace the entire lock with a similar new one.

[0003] In order to facilitate installation or replacement, the bolt assembly in the prior art is generally designed and assembled into a whole. For example, the prior art CN201358616Y discloses a bolt assembly, including a bolt, a lining plate, a spring, a bolt barrel, a bolt rod, a connecting piece and a shell. The connecting piece is in a right angle shape. A slot is provided on the connecting plate of the connecting piece to cooperate with the end of the bolt rod. A fin is provided on the guide plate of the connecting piece to form an acute angle with the end of the guide plate. The bolt assembly also includes a driving core, a driven member and a transmission member. A puller is provided on the radial outer surface of the driving core, and the driving core is pivotally connected to the shell. The transmission member is located on the inner wall of the pivoted shell. The transmission member is in a shape similar to an "isosceles triangle", wherein a puller hook is extended from the bottom plate surface and the waist plate surface. The puller hook fits with the base waist plate surface of the transmission member, and the puller hook fits with the obtuse angle surface of the fin. The driving member only needs to rotate a small angle to allow the bolt to enter the bolt barrel. In addition, there is no opening on the shell to prevent dust from entering the shell.

[0004] When replacing the lock tongue assembly in the above-mentioned prior art, the lock tongue assembly can be inserted as a whole into the lock tongue mounting hole on the side of the door. It seems to be easy to install, but the lock tongue mounting hole needs to be adapted to the size of the outer shell of the above-mentioned lock tongue assembly. Since the sizes of the lock tongue mounting holes are different, when the outer shell size of the lock tongue assembly is large, the lock tongue mounting hole needs to be remodeled and expanded, resulting in reduced installation efficiency of the lock tongue assembly. The lock tongue mounting hole is generally a rectangular hole. The work of modifying the lock tongue mounting hole may be relatively convenient for wooden doors or plastic doors, but it will become time-consuming and laborious for metal doors. In addition, the thickness of the door is limited, and when modifying the lock tongue mounting hole, it may also cause irreversible damage to the door. Utility Model Content

[0005] The purpose to be achieved by the utility model is to provide a lock to solve the problem of low installation efficiency of door locks, improve the adaptability of the lock, and thus improve the installation efficiency.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a lock, including a lock tongue assembly and a lock core assembly, the lock tongue assembly including a mounting frame and a shell, the mounting frame having an inner hole, a lock tongue slidably arranged in the inner hole, a push rod for driving the lock tongue to slide back and forth in the inner hole is provided on the shell, the mounting frame and the shell are detachably connected along a direction perpendicular to the reciprocating sliding direction of the lock tongue, the lock tongue and the push rod are detachably connected along a direction perpendicular to the reciprocating sliding direction of the lock tongue, a fastener is provided between the lock tongue and the push rod, the fastener passes through the lock tongue and is connected to the push rod along the reciprocating sliding direction of the lock tongue to fix the lock tongue and the push rod.

[0007] After adopting the above technical scheme, the utility model has the following advantages: when replacing the door lock and thus the lock tongue assembly, after removing the original lock, the mounting frame can be first inserted into the lock tongue mounting hole on the door, and then the outer shell is inserted into the lock body mounting hole on the door perpendicular to the reciprocating sliding direction of the lock tongue and docked with the mounting frame, so that the push rod is docked with the lock tongue, and then the fastener is connected to the push rod to complete the installation of the lock tongue assembly. Generally, only the lock tongue needs to be set in the mounting frame, and the size of the mounting frame can be easily designed to be small, while some transmission parts need to be set in the shell, and sufficient movement space needs to be reserved, resulting in a relatively large size. After the mounting frame is separated from the shell and the lock tongue and the push rod are separated, the mounting frame can be more easily adapted to the lock tongue mounting hole on most doors alone, and generally, it is not necessary to expand the lock tongue mounting hole. The lock body mounting hole on the door is basically a round hole, and its diameter is generally large, and generally, it does not need to be expanded, thereby improving the installation efficiency of the lock. Even if it does not match the size of the shell, there is a large enough area for expansion, and expanding the round hole perpendicular to the door surface is much simpler and faster, and it is not easy to cause irreversible damage to the door. When the lock tongue assembly needs to be removed, first remove the fastener from the lock tongue and the push rod, pull or push the shell in the reciprocating sliding direction perpendicular to the lock tongue, so that the mounting frame is separated from the shell and the lock tongue is separated from the push rod, and then remove the mounting frame along the reciprocating sliding direction of the lock tongue to remove the mounting frame. The lock tongue is slidably installed in the inner hole of the mounting frame, and the inner hole wall can be used to guide the lock tongue to reciprocate smoothly, so that the lock tongue is convenient to extend from the mounting frame, extend out of the mounting frame to the side of the door, and then be inserted into the lock hole on the door frame, or withdraw from the lock hole on the door frame to the mounting frame, so as to lock or open the door; the lock tongue is driven to slide by a push rod, and the push rod is driven by the lock core assembly, so as to drive the lock tongue to slide back and forth when opening or locking the door.

[0008] Furthermore, a first sliding groove is provided on an end surface of the push rod facing the lock tongue, and a first sliding rib is provided on an end of the lock tongue facing the push rod. The first sliding rib is inserted into the first sliding groove in a direction perpendicular to the reciprocating sliding direction of the lock tongue, and the fastener passes through the first sliding rib and is fixed to the push rod.

[0009] By adopting the above-mentioned technical solution, when the mounting frame and the shell are installed and connected, the first sliding rib is slidably installed in the first sliding groove in a direction perpendicular to the reciprocating sliding direction of the lock tongue, which is convenient for connecting the lock tongue with the push rod. The insertion of the first sliding rib and the first sliding groove facilitates the pre-alignment of the lock tongue and the push rod in the reciprocating sliding direction of the lock tongue, and facilitates the fastener to be fixed to the push rod after passing through the first sliding rib, which is beneficial to improving the assembly efficiency and improving the stability of the push rod in pushing the lock tongue to slide in the mounting frame.

[0010] Furthermore, a second slide groove is provided on the shell, and a second sliding rib is provided on one end of the mounting frame facing the shell, the second sliding rib is inserted into the second slide groove in a direction perpendicular to the reciprocating sliding direction of the lock tongue, the first sliding rib passes through the second slide groove and is connected with the first slide groove, and an avoidance groove for avoiding the first sliding rib is provided on the groove wall of the second slide groove; or, an axial through hole is provided on the lock tongue, a connecting hole is provided on the push rod, a fastener passes through the axial through hole and is connected with the connecting hole, a blocking rib is provided on the shell, and the axial through hole is aligned with the connecting hole when the mounting frame abuts against the blocking rib in a direction perpendicular to the sliding direction of the lock tongue.

[0011] The locking cam of the second locking cam is engaged with the locking cam of the second locking cam, and the locking cam of the second locking cam is engaged with the locking cam of the second locking cam, so that the locking cam of the second locking cam is engaged with the locking cam of the second locking cam, and the locking cam of the second locking cam is engaged with the locking cam of the second locking cam, so that the locking cam of the second locking cam is engaged with the locking cam of the second locking cam, and the locking cam of the second locking cam is engaged with the locking cam of the second locking cam, so that the locking cam of the second locking cam is engaged with the locking cam of the second locking cam, and the locking cam of the second locking cam is engaged with the locking cam of the second locking cam,

[0012] Furthermore, a blocking member is provided at one end of the mounting frame toward the outer shell, and the blocking member is used to block the lock tongue so that the first sliding rib and the second sliding rib are aligned perpendicular to the sliding direction of the lock tongue; or, a guide groove is provided on the outer shell, and the guide groove extends along the sliding direction of the lock tongue, and a guide rib is provided on the push rod, and the guide rib extends into the guide groove.

[0013] By adopting the above-mentioned technical solution, a blocking member is installed on the mounting frame to align the first sliding rib and the second sliding rib perpendicular to the sliding direction of the lock tongue. When the mounting frame is connected to the shell, the first sliding rib and the first sliding groove can be plugged into the second sliding groove at the same time, thereby further improving the assembly efficiency. The blocking member reduces the possibility of the lock tongue detaching from the mounting frame from one end of the mounting frame toward the shell, thereby further reducing the difficulty of connecting the lock tongue and the mounting frame to the push rod and the shell respectively. When the push rod pushes the lock tongue to slide, the guide rib slides in the guide groove, and the guide groove guides the sliding of the push rod, thereby improving the smoothness of the reciprocating motion of the push rod and reducing the possibility of the push rod and the lock tongue getting stuck during the sliding process of unlocking or locking.

[0014] Furthermore, the mounting frame includes a first bracket and a second bracket, the second bracket is slidably arranged in the first bracket, the second bracket and the first bracket are circumferentially limited by limiting ribs, one end of the second bracket away from the first bracket is connected to the outer shell, and the second bracket is provided with a locking member for locking the second bracket to the first bracket.

[0015] By adopting the above-mentioned technical scheme, when the mounting frame is installed on the door panel, the first bracket is fixed to the door panel, and the second bracket is connected to the shell, and then the lock tongue assembly is installed on the door panel. When the distance between the lock body mounting hole on the door panel and the side of the door panel is large, even if the lock tongue mounting hole is long, it will cause the second bracket to have insufficient length toward the shell to connect with the shell. Therefore, the second bracket is designed to slide on the first bracket along the length direction of the lock tongue, so that the total length between the first bracket and the second bracket is increased, which is convenient for adapting to lock tongue mounting holes of different lengths and ensuring that the second bracket is reliably connected to the shell. There is no need to modify the lock body mounting hole to be close to the side of the door panel, and the applicability of the lock is greatly improved. The first bracket and the second bracket are circumferentially limited by limiting ribs to avoid relative rotation between the second bracket and the first bracket. The second bracket is locked to the first bracket by a locking member to ensure the reliability of the connection between the mounting frame as a whole and the shell.

[0016] Furthermore, the second bracket has an initial position and an extended position, and one end of the locking tongue away from the push rod is detachably connected to the extension portion when the second bracket is in the extended position.

[0017] By adopting the above-mentioned technical solution, when the second bracket is in the initial position, the extension part of the lock tongue does not need to be installed on the lock tongue. When the second bracket is switched to the extended position, the extension part is installed on the end of the lock tongue away from the shell, increasing the length of the lock tongue, so that the end of the lock tongue away from the shell can be better inserted into the lock hole on the door frame, and no matter whether the second bracket is in the initial position or the extended position, the length of the lock tongue inserted into the lock hole is the same, reducing the possibility of the lock tongue detaching from the lock hole after locking.

[0018] Furthermore, the first bracket is provided with a plurality of locking holes distributed along the reciprocating sliding direction of the locking tongue and all penetrating the inner and outer walls of the first bracket. The locking member on the second bracket has a tendency to maintain contact with the inner wall of the first bracket, and the locking member extends into the locking hole to lock the second bracket.

[0019] By adopting the above-mentioned technical solution, when the second bracket slides relative to the first bracket, the locking piece abuts against the inner wall of the first bracket. When the locking piece is aligned with the locking hole, the locking piece extends into the locking hole, thereby locking the second bracket on the first bracket. The locking piece remains abutted against the inner wall of the first bracket, reducing the possibility of accidental sliding of the second bracket and the first bracket after locking.

[0020] Furthermore, there are two locking holes, the first bracket is provided with a positioning protrusion for aligning the auxiliary locking piece with the locking hole, and the second bracket is provided with a strip hole extending along the reciprocating sliding direction of the lock tongue, the positioning protrusion extends into the strip hole, and the positioning protrusion abuts against the end of the strip hole to align the locking piece with the locking hole.

[0021] By adopting the above-mentioned technical scheme, the two locking holes correspond to the two states of the second bracket. When the second bracket is in the initial position, the positioning protrusion abuts against the inner wall of one end of the strip hole, and the locking piece is inserted in one locking hole. When the second bracket is in the extended position, the positioning protrusion abuts against the inner wall of the other end of the strip hole, and the locking piece is just aligned with the other locking hole, so that the locking piece is aligned and inserted with the locking hole when the first bracket and the second bracket slide relative to each other. The positioning protrusion and the strip hole play an auxiliary role when the locking piece is inserted into the locking hole, reducing the difficulty of the locking piece extending into the locking hole, thereby reducing the difficulty of locking the second bracket on the first bracket, and facilitating the adjustment and switching of the second bracket between the two states.

[0022] Furthermore, the housing is also provided with a driving ring, the lock core assembly passes through the driving ring and drives the driving ring to rotate, and the driving ring abuts against the push rod to drive the push rod to move.

[0023] By adopting the above-mentioned technical solution, the lock core assembly drives the drive ring to rotate, and the drive ring abuts the push rod to drive the push rod to move, thereby converting the rotational motion of unlocking into the linear motion of the lock tongue, reducing the difficulty of the push rod driving the lock tongue to slide back and forth, thereby facilitating the locking and opening of the lock.

[0024] Furthermore, the driving ring is provided with an abutting rod for abutting the pushing rod, the pushing rod is provided with an inserting groove for inserting with the abutting rod, a limiting protrusion is provided on the groove wall on the side of the inserting groove facing the lock tongue, and a limiting surface is provided on the end of the abutting rod away from the driving ring, and the limiting surface abuts against the limiting protrusion to keep the lock tongue in a state of extending out of the mounting frame.

[0025] By adopting the above-mentioned technical solution, the abutment rod on the driving ring and the insertion groove on the pushing rod are always kept plugged in, thereby reducing the possibility of the driving ring and the pushing rod being disengaged and causing unstable reciprocating sliding of the pushing rod. When the lock tongue slides out to lock the door, the limiting surface on the abutment rod abuts against the limiting protrusion on the pushing rod. Through the abutment between the limiting surface and the limiting protrusion, the lock tongue can be kept in a state of extending out of the mounting frame or retracting into the mounting frame as needed, which is beneficial to improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The utility model is further described below in conjunction with the accompanying drawings:

[0027] Figure 1 This is an overall cross-sectional view of a lock tongue assembly in a lock of the utility model;

[0028] Figure 2 This is a schematic diagram of the installation of the housing and the push rod in the utility model;

[0029] Figure 3 This is a schematic diagram of the installation of the first sliding rib and the second sliding rib aligned with each other in the present invention;

[0030] Figure 4 It is a structural schematic diagram of the abutment rod pushing out the push rod in the utility model;

[0031] Figure 5 For this utility model Figure 4 A in the enlarged view;

[0032] Figure 6 This is a schematic diagram of the installation of the first bracket and the second bracket in the utility model;

[0033] Figure 7 This is a schematic diagram of the structure of the locking member locking the second bracket in the utility model;

[0034] Figure 8 For this utility model Figure 7 Enlarged view of point B in the middle;

[0035] Fig. 9 This is a schematic diagram of the installation of the lock tongue and the extension part in the utility model;

[0036] Fig.10 It is a structural schematic diagram of the lock tongue mounting hole and the lock body mounting hole in the utility model. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0038] The terms "first", "second", etc. (if any) in the specification and claims of the present utility model are used to distinguish similar objects, rather than to describe a specific order or sequence. Even if "second" is used to distinguish a certain technical feature, it does not necessarily mean that it has "first". It should be understood that in the present utility model, "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. It should be understood that in the present utility model, "multiple" refers to two or more. "And / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, X and / or Y can represent: X exists alone, X and Y exist at the same time, and Y exists alone. The character " / " generally indicates that the related objects before and after are in an "or" relationship. "Contains X, Y and Z", "Contains X, Y, Z" means that X, Y, and Z are all included, "Contains X, Y or Z" means that one of X, Y, and Z is included, and "Contains X, Y and / or Z" means that any one, any two, or three of X, Y, and Z are included.

[0039] The following specific embodiments are used to describe the technical solution of the utility model in detail. The following specific embodiments can be combined or replaced with each other according to actual conditions, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0040] like Figures 1 to 10 As shown, the utility model provides a lock, including a lock tongue assembly and a lock core assembly, the lock tongue assembly including a mounting frame 1 and a shell 2, the mounting frame 1 having an inner hole, a lock tongue 3 being slidably arranged in the inner hole, and a push rod 4 for driving the lock tongue 3 to slide back and forth in the inner hole is arranged on the shell 2. The push rod 4 drives the lock tongue 3 to slide back and forth in the inner hole of the mounting frame 1, so that the lock tongue 3 extends out of the mounting frame 1 and is plugged into the lock hole 72 on the door frame 7 to lock the door, or the lock tongue 3 exits the lock hole 72 to open the door. Since only the lock tongue 3 is slidably installed in the mounting frame 1, the size of the designed mounting frame 1 is relatively small, and in addition to the push rod 4 slidably installed in the shell 2, some transmission components that drive the push rod 4 to move need to be installed, resulting in the size of the shell 2 being larger than that of the mounting frame 1.

[0041] In this embodiment, in order to reduce the possibility that the bolt mounting hole 711 needs to be remodeled and expanded due to the size of the housing 2 being larger than the size of the bolt mounting hole 711 when installing the bolt assembly, the mounting frame 1 and the housing 2 are detachably connected in a direction perpendicular to the reciprocating sliding direction of the bolt 3, and the bolt 3 and the push rod 4 are detachably connected in a direction perpendicular to the reciprocating sliding direction of the bolt 3. When installing the bolt assembly, the mounting frame 1 and the bolt 3 are inserted into the bolt mounting hole 711 on the door panel 71 in the reciprocating sliding direction of the bolt 3, and the mounting frame 1 is fixed to the side of the door panel 71, and then the housing 2 and the push rod 4 are placed in the lock body mounting hole 712 on the door panel 71 in a direction perpendicular to the reciprocating sliding direction of the bolt 3. After the mounting frame 1 and the housing 2 are installed, the push rod 4 is docked with the bolt 3.

[0042] In this embodiment, if Figure 1 As shown, in order to improve the stability of the push rod 4 driving the lock tongue 3 to slide back and forth, a fastener 6 is provided between the lock tongue 3 and the push rod 4. The fastener 6 passes through the lock tongue 3 and the push rod 4 along the reciprocating sliding direction of the lock tongue 3 and is fixed. After the lock tongue 3 and the push rod 4 are fixed, the lock tongue 3 and the push rod 4, the mounting frame 1 and the housing 2 are not easy to separate in a direction perpendicular to the reciprocating sliding direction of the lock tongue 3, and the possibility of the mounting frame 1 and the housing 2, and the lock tongue 3 and the push rod 4 being separated during use is reduced. Figure 1 As shown, the lock tongue 3 is provided with an axial through hole 32, the push rod 4 is provided with a connecting hole 43, and the fastener 6 is connected to the connecting hole 43 after passing through the axial through hole 32. The outer wall of the fastener 6 has a shoulder. When the fastener 6 fixes the lock tongue 3 on the push rod 4, the shoulder on the fastener 6 abuts against the step groove of the axial through hole 32. The abutment between the shoulder and the step groove facilitates the fastening judgment between the lock tongue 3 and the push rod 4, avoiding the possibility of deformation of the lock tongue 3 or the push rod 4 due to over-tightening. In order to facilitate disassembly and assembly, the fastener 6 is generally made of screws or bolts. In this embodiment, Figure 2 and Figure 3 As shown, in order to further improve the stability of the connection between the push rod 4 and the lock tongue 3, a first sliding groove 42 is provided on the end surface of the push rod 4 facing the lock tongue 3, and a first sliding rib 31 is provided on the end surface of the lock tongue 3 facing the push rod 4. During the installation of the push rod 4 and the lock tongue 3, the first sliding rib 31 is inserted in the first sliding groove 42 along a direction perpendicular to the reciprocating sliding direction of the lock tongue 3, and then the fastener 6 is passed through the first sliding rib 31 along the sliding direction of the lock tongue 3 and fixed to the push rod 4. The insertion of the first sliding rib 31 and the first sliding groove 42 facilitates the pre-alignment of the lock tongue 3 and the push rod 4 in the reciprocating sliding direction of the lock tongue 3, and facilitates the fastener 6 to be fixed to the push rod 4 after passing through the first sliding rib 31, thereby improving the stability of the lock tongue 3 and the push rod 4 after installation, and the insertion of the first sliding rib 31 and the first sliding groove 42 is conducive to improving the assembly efficiency.

[0043] In this embodiment, if Figure 2 and Figure 3 As shown, in order to improve the stability between the mounting frame 1 and the shell 2, a second sliding rib 11 is provided on one end of the mounting frame 1 facing the shell 2, and a second slide groove 21 is provided on one end of the shell 2 facing the mounting frame 1. When the mounting frame 1 and the shell 2 are installed on the door panel 71, the second sliding rib 11 and the second slide groove 21 are plugged in a direction perpendicular to the reciprocating sliding direction of the lock tongue 3. When the second sliding rib 11 and the second slide groove 21 are plugged in, the first sliding rib 31 and the first slide groove 42 are driven to be plugged in. After the plugging is completed, it is equivalent to the second slide groove 21 being distributed on both sides of the first slide groove 42, which can improve the stability of the connection between the mounting frame 1 and the shell 2.

[0044] In this embodiment, if Figure 2 and Figure 3 As shown, in order to reduce the possibility of the mounting frame 1 and the housing 2 as well as the lock tongue 3 and the push rod 4 being disengaged along the reciprocating sliding direction of the lock tongue 3, the first slide groove 42 and the second slide groove 21 are dovetail grooves, and the first sliding rib 31 and the second sliding rib 11 are dovetail blocks adapted to the dovetail grooves. By plugging the dovetail grooves and the dovetail blocks, the possibility of the mounting frame 1 and the housing 2 as well as the lock tongue 3 and the push rod 4 being disengaged along the reciprocating sliding direction of the lock tongue 3 is reduced. At the same time, an avoidance groove 211 for avoiding the first sliding rib 31 is provided on the groove wall of the second slide groove 21. The avoidance groove 211 reduces the possibility of the second slide groove 21 on the housing 2 blocking the sliding of the lock tongue 3 and the push rod 4 when the first sliding rib 31 slides reciprocatingly with the lock tongue 3.

[0045] In another embodiment, the first slide groove 42 and the second slide groove 21 may also be any other shape, such as a T-shaped structure, and the first sliding rib 31 and the second sliding rib 11 are shapes that match the first slide groove 42 and the second slide groove 21, so that the first slide groove 42 and the first sliding rib 31 are engaged in the reciprocating sliding direction of the lock tongue 3, and the second slide groove 21 and the second sliding rib 11 are engaged in the reciprocating sliding direction of the lock tongue 3, thereby reducing the possibility of the mounting frame 1 and the housing 2, and the lock tongue 3 and the push rod 4 being disengaged along the sliding direction of the lock tongue 3. In this embodiment, if Figures 1 to 3 As shown, when installing the bolt assembly, since the connecting hole 43 is in an unobservable position, when the second sliding rib 11 is plugged into the second slide groove 21, it is also conducive to the alignment of the axial through hole 32 and the connecting hole 43, reducing the difficulty of installing the mounting frame 1 and the shell 2 in place, and further improving the assembly efficiency. In addition, in order to facilitate the alignment of the axial through hole 32 and the connecting hole 43, a blocking rib 24 is provided on the shell 2. When the shell 2 and the mounting frame 1 slide in a direction perpendicular to the reciprocating sliding direction of the bolt 3 so that the mounting frame 1 abuts against the blocking rib 24, the axial through hole 32 and the connecting hole 43 are aligned, which facilitates the fastener 6 to extend from the axial through hole 32 into the connecting hole 43 to fix the bolt 3 on the push rod 4.

[0046] In one embodiment, if Figure 2and Figure 3 As shown, in order to facilitate the installation of the lock tongue 3 and the mounting frame 1, a blocking member 12 is provided on the end of the mounting frame 1 facing the outer shell 2. When the lock tongue 3 slides on the mounting frame 1 along the end away from the outer shell 2 toward the outer shell 2, the blocking member 12 blocks the sliding of the lock tongue 3 at the end of the mounting frame 1 facing the outer shell 2, thereby reducing the possibility that the lock tongue 3 slides and separates from the mounting frame 1 and affects the connection between the lock tongue 3 and the push rod 3. When the lock tongue 3 abuts against the blocking member 12, the first sliding rib 31 and the second sliding rib 11 are aligned perpendicular to the reciprocating sliding direction of the lock tongue 3, so as to facilitate the insertion of the first sliding rib 31 and the first slide groove 42, and the second sliding rib 11 and the second slide groove 21. The blocking member 12 can be fixedly mounted on the mounting frame 1, or it can be integrally formed with the mounting frame 1. In this embodiment, as shown in FIG. Figure 3 As shown, a limiting groove 33 is provided on the end face of the lock tongue 3 facing the housing 2. When the blocking member 12 abuts against the lock tongue 3, the blocking member 12 is inserted into the limiting groove 33. The blocking member 12 is hidden and installed on the lock tongue 3 along a direction perpendicular to the reciprocating sliding direction of the lock tongue 3, thereby reducing the blocking member 12 from protruding from the first sliding rib 31 toward one side of the housing 2 and affecting the insertion of the first sliding rib 31 and the first sliding groove 42.

[0047] In one embodiment, if Figure 2 As shown, in order to facilitate the push rod 4 to drive the lock tongue 3 to slide, a guide groove 22 is provided on the shell 2, and the guide groove 22 extends along the sliding direction of the lock tongue 3. The push rod 4 is provided with a guide rib 41, and the guide rib 41 extends into the guide groove 22. When the lock core assembly drives the push rod 4 to slide back and forth, the guide groove 22 guides the guide rib 41 to slide with the push rod 4, thereby improving the smoothness of the reciprocating motion of the push rod 4 and reducing the possibility of the push rod 4 and the lock tongue 3 getting stuck during the sliding process of unlocking or locking.

[0048] In one embodiment, if Figure 2 As shown, in order to drive the push rod 4 to move, a drive ring 23 is provided on the housing 2. The lock core assembly passes through the drive ring 23 and drives the drive ring 23 to rotate. During the rotation of the drive ring 23, it abuts against the push rod 4 to drive the push rod 4 to reciprocate along the length direction of the guide groove 22. The drive ring 23 converts the rotational motion of unlocking into the linear motion of the lock tongue 3, reducing the difficulty of the push rod 4 driving the lock tongue 3 to slide back and forth, making it easier to lock and unlock the lock. Figure 4 As shown, in order to facilitate the driving ring 23 to drive the push rod 4 to move, the driving ring 23 is provided with an abutting rod 231 for abutting the push rod 4, and the end of the push rod 4 away from the lock tongue 3 is provided with a plugging groove 44 for plugging with the abutting rod 231. The abutting rod 231 is always plugged into the plugging groove 44 during the process of pushing the push rod 4, reducing the possibility of the abutting rod 231 and the push rod 4 being separated, and at the same time, it is convenient for the abutting rod 231 to drive the push rod 4 to reciprocate, thereby driving the lock tongue 3 to reciprocate. Figure 4 and Figure 5 As shown, in order to improve the stability of the door after it is locked, a limiting protrusion 441 is provided on the groove wall of the insertion groove 44 on the side facing the lock tongue 3, and a limiting surface 232 is provided on the end of the abutment rod 231 away from the driving ring 23. After the driving ring 23 drives the abutment rod 231 to push the pushing rod 4 so that the lock tongue 3 extends out of the mounting frame 1, the limiting surface 232 abuts against the limiting protrusion 441 to keep the lock tongue 3 extending out of the mounting frame 1. Through the abutment between the limiting surface 232 and the limiting protrusion 441, the lock tongue 3 can be kept in the state of extending out of the mounting frame 1 as needed, which is beneficial to improving the user experience.

[0049] In this embodiment, the limiting surface 232 is an arcuate surface. When the locking tongue 3 needs to be retracted into the mounting frame 1, the arcuate surface facilitates separation from the limiting protrusion 441, thereby reducing the difficulty of the limiting surface 232 separating from the limiting protrusion 441 when the abutting rod 231 drives the pushing rod 4 to slide.

[0050] In another embodiment, if Figure 1 and Figure 6 As shown, in order to facilitate the mounting frame 1 to adapt to different lengths of the locking tongue mounting hole 711, the mounting frame 1 includes a first bracket 13 and a second bracket 14. The second bracket 14 is slidably mounted on the first bracket 13 along the reciprocating sliding direction of the locking tongue 3. The first bracket 13 and the second bracket 14 are circumferentially limited by a limiting rib 15. The end of the second bracket 14 away from the first bracket 13 is connected to the housing 2. The second bracket 14 is provided with a locking member 5 for locking the second bracket 14 on the first bracket 13. When the mounting bracket 1 is mounted on the door panel 71, if it is observed that the bolt mounting hole 711 is relatively long, the second bracket 14 is slid on the first bracket 13 to adjust the total length of the first bracket 13 and the second bracket 14. When the total length between the first bracket 13 and the second bracket 14 matches the length of the bolt mounting hole 711, the second bracket 14 is locked on the first bracket 13 by the locking member 5, and then the locked first bracket 13 and the second bracket are inserted into the bolt mounting hole 711 along the reciprocating sliding direction of the bolt 3. The first bracket 13 is fixedly mounted on the side of the door panel 71 by screws or other means, and the second bracket 14 extending out of the bolt mounting hole 711 is connected to the housing 2. The total length between the first bracket 13 and the second bracket 14 is adjustable, which is convenient for adapting to bolt mounting holes 711 of different lengths, ensuring that the second bracket 14 is reliably connected to the housing 2, and there is no need to modify the lock body mounting hole 712 to be close to the side of the door panel 71, and the applicability of the lock is greatly improved.

[0051] In this embodiment, if Figure 6 and Figure 7As shown, in order to improve the locking effect of the second bracket 14 on the first bracket 13, a plurality of locking holes 16 distributed along the reciprocating sliding direction of the locking tongue 3 are provided on the first bracket 13, and the locking holes 16 penetrate the inner and outer walls of the first bracket 13. The locking member 5 is provided on the second bracket 14, and the locking member 5 has a tendency to maintain contact with the inner wall of the first bracket 13 on the second bracket 14. When the locking member 5 is aligned with the locking hole 16, the locking member 5 extends into the locking hole 16 to lock the second bracket 14, thereby reducing the possibility of relative sliding between the first bracket 13 and the second bracket 14 after installation.

[0052] Specifically, Figure 7 and Figure 8 As shown, the locking member 5 includes a locking block 52 and an abutment spring 51. A receiving groove 141 is provided on the outer wall of the second bracket 14. The locking block 52 is slidably arranged in the receiving groove 141 along a direction perpendicular to the reciprocating sliding direction of the locking tongue 3. One end of the abutment spring 51 is arranged on the bottom wall of the receiving groove 141, and the other end is arranged on the locking block 52. The abutment spring 51 has a tendency to abut the locking block 52 on the inner wall of the first bracket 13. When the locking block 52 is aligned with the locking hole 16, the abutment spring 51 abuts the locking block 52 so that the locking block 52 extends into the locking hole 16, thereby locking the second bracket 14 on the first bracket 13.

[0053] In this embodiment, if Figure 8 As shown, in order to prevent the locking block 52 from sliding out of the locking hole 16 to the outside of the first bracket 13, two abutting ribs 521 are provided on the locking block 52. The two abutting ribs 521 are distributed on the two side walls of the locking block 52 along the reciprocating sliding direction of the lock tongue 3. When the locking block 52 is inserted into the locking hole 16, the two abutting ribs 521 abut against the inner wall of the first bracket 13, reducing the possibility of the locking block 52 sliding out of the locking hole 16. The abutting ribs 521 are provided on both sides of the locking block 52, so that the locking block 52 is relatively stable when it is inserted into the locking hole 16, thereby improving the stability of the locking of the first bracket 13 and the second bracket 14.

[0054] In another embodiment, if Figure 8 As shown, in order to avoid the possibility of the locking block 52 and the abutment spring 51 being separated during the sliding process of the second bracket 14 and the first bracket 13, an abutment groove 522 is provided on the side of the locking block 52 facing the abutment spring 51, and the abutment spring 51 abuts in the abutment groove 522. By setting the abutment groove 522, the contact range between the abutment spring 51 and the locking block 52 is increased, thereby avoiding the possibility of the abutment spring 51 and the locking block 52 being separated when the second bracket 14 and the first bracket 13 slide relative to each other.

[0055] In another embodiment, if Figure 7As shown, the first bracket 13 is provided with a positioning protrusion 17 for assisting the locking member 5 to align with the locking hole 16, and the second bracket 14 is provided with a strip hole 18 extending along the reciprocating sliding direction of the lock tongue 3. The positioning protrusion 17 extends into the strip hole 18. There are two locking holes 16 along the reciprocating sliding direction of the lock tongue 3. When the strip hole 18 slides with the second bracket 14, the positioning protrusion 17 and the strip hole 18 slide relative to each other. When the positioning protrusion 17 abuts against the inner wall of one end of the strip hole 18, the locking member 5 is aligned with one of the locking holes 16. The positioning protrusion 17 abuts against the inner wall of one end of the strip hole 18, which facilitates the alignment of the locking member 5 with the locking hole 16, thereby reducing the difficulty of locking the second bracket 14 by the locking member 5.

[0056] In another embodiment, the second bracket 14 has an initial position and an extended position, and correspondingly, the locking tongue 3 has a detachable extension portion 34, such as Fig. 9 As shown, when the second bracket 14 is in the initial position, the extension portion 34 does not need to be installed on the lock tongue 3. When the second bracket 14 is in the extended position, the extension portion 34 can be installed on the lock tongue 3. The extension portion 34 is detachably mounted on the lock tongue 3 by screw fixing. Regardless of whether the second bracket 14 is in the initial position or the extended position, the length of the lock tongue 3 extending out of the first bracket 13 is constant, thereby reducing the possibility that when the second bracket 14 is in the extended position, the length of the lock tongue 3 extending out is too short to affect the effect of locking the door.

[0057] In addition to the above-mentioned preferred embodiments, the present invention also has other implementation modes. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection requested by the present invention.

Claims

1. A lock, comprising a lock tongue assembly and a lock core assembly, wherein the lock tongue assembly comprises a mounting frame and a housing, wherein the mounting frame has an inner hole, wherein a lock tongue is slidably arranged in the inner hole, and wherein a push rod is arranged on the housing for driving the lock tongue to slide back and forth in the inner hole, wherein the push rod is arranged on the housing, and wherein the push rod is The mounting frame and the shell are detachably connected along a direction perpendicular to the reciprocating sliding direction of the lock tongue, and the lock tongue and the push rod are detachably connected along a direction perpendicular to the reciprocating sliding direction of the lock tongue. A fastener is provided between the lock tongue and the push rod, and the fastener passes through the lock tongue and the push rod along the reciprocating sliding direction of the lock tongue to connect and fix the lock tongue and the push rod.

2. The lock according to claim 1, characterized in that: A first sliding groove is provided on one end surface of the push rod facing the lock tongue, and a first sliding rib is provided on one end of the lock tongue facing the push rod. The first sliding rib is inserted into the first sliding groove along a direction perpendicular to the reciprocating sliding direction of the lock tongue, and the fastener passes through the first sliding rib and is fixed to the push rod.

3. The lock according to claim 2, characterized in that: The shell is provided with a second slide groove, and a second sliding rib is provided on one end of the mounting frame facing the shell, the second sliding rib is inserted into the second slide groove in a direction perpendicular to the reciprocating sliding direction of the lock tongue, the first sliding rib passes through the second slide groove and is connected with the first slide groove, and an avoidance groove for avoiding the first sliding rib is provided on the groove wall of the second slide groove; or, the lock tongue is provided with an axial through hole, the push rod is provided with a connecting hole, the fastener passes through the axial through hole and is connected with the connecting hole, and the shell is provided with a blocking rib, and the axial through hole is aligned with the connecting hole when the mounting frame abuts against the blocking rib in a direction perpendicular to the sliding direction of the lock tongue.

4. The lock according to claim 1, characterized in that: A blocking member is provided at one end of the mounting frame facing the outer shell, and the blocking member is used to block the lock tongue so that the first sliding rib and the second sliding rib are aligned perpendicular to the sliding direction of the lock tongue; or, a guide groove is provided on the outer shell, and the guide groove extends along the sliding direction of the lock tongue, and a guide rib is provided on the push rod, and the guide rib extends into the guide groove.

5. The lock according to claim 1, characterized in that: The mounting frame includes a first bracket and a second bracket. The second bracket is slidably arranged in the first bracket. The second bracket and the first bracket are circumferentially limited by limiting ribs. One end of the second bracket away from the first bracket is connected to the outer shell. The second bracket is provided with a locking member for locking the second bracket to the first bracket.

6. The lock according to claim 5, characterized in that: The second bracket has an initial position and an extended position, and one end of the locking tongue away from the push rod is detachably connected to the extension portion when the second bracket is in the extended position.

7. The lock according to claim 5, characterized in that: The first bracket is provided with a plurality of locking holes distributed along the reciprocating sliding direction of the locking tongue and all penetrating the inner and outer walls of the first bracket. The locking member on the second bracket has a tendency to maintain contact with the inner wall of the first bracket, and the locking member extends into the locking hole to lock the second bracket.

8. The lock according to claim 7, characterized in that There are two locking holes, and the first bracket is provided with a positioning protrusion for aligning the auxiliary locking piece with the locking hole. The second bracket is provided with a strip hole extending along the reciprocating sliding direction of the lock tongue. The positioning protrusion extends into the strip hole, and the positioning protrusion abuts the end of the strip hole to align the locking piece with the locking hole.

9. The lock according to claim 1, characterized in that: The housing is also provided with a driving ring, the lock core assembly passes through the driving ring and drives the driving ring to rotate, and the driving ring abuts against the push rod to drive the push rod to move.

10. The lock according to claim 9, characterized in that The driving ring is provided with an abutting rod for abutting the pushing rod, the pushing rod is provided with an inserting groove for inserting with the abutting rod, a groove wall on the side of the inserting groove facing the lock tongue is provided with a limiting protrusion, and the end of the abutting rod away from the driving ring is provided with a limiting surface, the limiting surface abuts against the limiting protrusion to keep the lock tongue in a state of extending out of the mounting frame.

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