Narrow-side lock body

Abstract

The utility model relates to the technical field of narrow-edge lock bodies, and discloses a narrow-edge lock body which comprises a bottom shell. The top shell is arranged above the bottom shell; the side plate is fixedly arranged on the side surface of the bottom shell; the door frame plate is vertically arranged on the outer side of the side plate; an upper spring bolt and a lower spring bolt are sequentially arranged in the bottom shell from left to right. A lock cylinder is vertically arranged between the upper spring bolt and the lower spring bolt, and the upper end and the lower end of the lock cylinder penetrate through the top shell and the bottom shell correspondingly. A lower spring bolt through groove and an upper spring bolt through groove are formed in the side face of the bottom shell and correspond to the outer ends of the lower spring bolt and the upper spring bolt respectively, and through openings are formed in the side face of the side plate and correspond to the lower spring bolt and the upper spring bolt in a penetrating mode. The lower spring bolt is of an integrated folding structure, reconnection is not needed, and the lower spring bolt is firm and simple in structure; the internal transmission part simplifies the structure on the premise that the functions of door closing and locking, unlocking, back locking and linkage unlocking can be achieved, the bottom shell is integrally formed and mutually connected to form the shell, the internal space is compressed, the appearance size is smaller, and installation and use on a thinner door are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of narrow-edge lock bodies, in particular to a narrow-edge lock body. Background Art

[0002] A door lock is a commonly used door protection device to prevent illegal intrusion by outsiders. The existing door lock body is generally provided with an upper lock tongue and a lower lock tongue, wherein the upper lock tongue extends into a buckle box on the door frame to position the door leaf on the door frame, so that the door leaf is in a closed state; wherein the upper lock tongue is linked to the door handle, and the upper lock tongue can be retracted into the lock body by turning the door handle to realize the door opening operation;

[0003] The lower lock tongue extends into the corresponding buckle box on the door frame, which can lock the door leaf on the door frame, so that the door lock is in an anti-locking state, so that people outside the door cannot open the door leaf; one side of the lower lock tongue is linked to the anti-locking knob inside the door, and the other side is linked to the lock core; people inside the door can drive the lower lock tongue to extend and retract by rotating the knob, and people outside the door can drive the lock core to drive the lower lock tongue to extend and retract by using a key, so as to realize the door lock unlocking and anti-locking;

[0004] The existing door lock body needs a large space for installing door lock accessories, which increases the volume of the lock body and is not convenient for installation on a very simple and thin door. At the same time, the internal structure of the lock body is complicated, which increases the production cost of the door lock body.

[0005] Therefore, a narrow-edge lock body is proposed. Utility Model Content

[0006] The purpose of the utility model is to provide a narrow-edge lock body to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a narrow-edge lock body, comprising a bottom shell;

[0008] A top shell disposed above the bottom shell;

[0009] A side plate fixedly arranged on the side of the bottom shell;

[0010] and a door frame plate vertically arranged on the outer side of the side plate;

[0011] An upper locking tongue and a lower locking tongue are arranged in sequence from left to right inside the bottom shell;

[0012] A lock core is vertically arranged between the upper lock tongue and the lower lock tongue, and the upper and lower ends of the lock core are respectively arranged through the top shell and the bottom shell;

[0013] The bottom shell side surface is provided with a lower lock tongue through groove and an upper lock tongue through groove corresponding to the outer ends of the lower lock tongue and the upper lock tongue, respectively, and the side plate side surface is provided with through openings corresponding to the positions of the lower lock tongue and the upper lock tongue;

[0014] A fixing strip is vertically fixed at the rear end of the bottom shell, an upper rotating ring and a lower rotating ring are respectively provided at the upper and lower ends of the lock core through bearing rotation sleeves, a connecting rod is fixedly provided at the rear end of the upper lock tongue, a fixing sleeve is fixedly provided on the rear end surface of the connecting rod, an extrusion sleeve is provided on the front end surface of the connecting rod, and a groove is extruded between the front face of the extrusion sleeve and the back face of the side plate.

[0015] A mounting plate is horizontally arranged at the inner end of the lower locking tongue.

[0016] Preferably, the outer edge of the top of the bottom shell is evenly and fixedly provided with snap-fitting ridges, and the top surface of the top shell is provided with snap-fitting grooves at positions corresponding to the snap-fitting ridges. The snap-fitting ridges are adapted to the snap-fitting grooves, and the bottom shell and the top shell are snap-connected via the snap-fitting ridges and the snap-fitting grooves.

[0017] Preferably, key through grooves are opened on the top surfaces of the right ends of the top shell and the bottom shell, a lower clamping piece is fixedly provided on the inner wall of the bottom shell corresponding to the rear end position of the connecting rod, and an upper clamping piece is fixedly provided on the bottom surface of the top shell corresponding to the rear end position of the connecting rod, the lower clamping piece cooperates with the upper clamping piece to clamp and limit the rear end of the connecting rod, and the surface of the connecting rod is in sliding contact with the surface of the lower clamping piece and the surface of the upper clamping piece.

[0018] Preferably, a spring 1 is sleeved on the front end of the connecting rod, and both ends of the spring 1 are in extrusion contact with the back side of the extrusion sleeve and the front sides of the lower clamping piece and the upper clamping piece respectively.

[0019] Preferably, a toggle plate is fixedly provided on the side surface of the upper rotating ring and the side surface of the lower rotating ring, and both toggle plates are in clamping contact with the fixed sleeve plate, and the other side surface of the lower rotating ring is connected to the fixed bar through a second spring.

[0020] Preferably, a limiting slot is horizontally penetrated through the rear end of the lower locking tongue, a limiting strip 1 is vertically arranged inside the limiting slot, the bottom end of the limiting strip 1 is fixedly connected to the inner side surface of the bottom shell, and the surface of the limiting strip 1 is in sliding contact with the inner wall of the limiting slot.

[0021] Preferably, a fixing bolt is fixedly provided on the top surface of the lower lock tongue, and a connecting strip is horizontally slidably provided on the top surface of the lower lock tongue, connecting holes are opened at both ends of the connecting strip, and the connecting strip is sleeved on the fixing bolt through the connecting hole on the right side, and a hook plate is fixedly provided on the bottom surface of one end of the upper rotating ring, and the connecting strip is sleeved on the hook plate through the connecting hole on the left side.

[0022] Preferably, the bottom surface of the mounting plate is in sliding contact with the bottom surface of the inner side of the bottom shell, the bottom surface of the lower locking tongue is in sliding contact with the top surface of the mounting plate, a sliding groove is horizontally penetrated through the top surface of the mounting plate, an L-shaped plate is fixedly provided on the top surface of the mounting plate at the position corresponding to the sliding groove, the side surface of the lower locking tongue is fixedly provided with helical teeth, the side surface of the helical teeth is in extrusion contact with the side surface of the L-shaped plate, a limiting strip 2 is provided inside the sliding groove, the bottom surface of the limiting strip 2 is fixedly connected to the bottom surface of the inner side of the bottom shell, a spring 3 is horizontally provided between the L-shaped plate and the limiting strip 2, and the two ends of the spring 3 are respectively fixedly connected to the side surface of the L-shaped plate and the side surface of the limiting strip 2.

[0023] Compared with the prior art, the utility model has the following beneficial effects: the narrow-edge lock body,

[0024] 1) By adopting an integrated folded structure for the lower lock tongue, no need for further connection, it is strong and simple in structure; the internal transmission parts have a streamlined structure while being able to realize the functions of closing, locking, unlocking, reverse locking, and linkage unlocking;

[0025] 2) The outer shell is connected by an integrated bottom shell, which compresses the internal space and makes its outer dimensions thinner, making it easier to install on thinner doors. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0027] Figure 2 It is a three-dimensional exploded schematic diagram of the overall structure of the utility model;

[0028] Figure 3 It is a three-dimensional schematic diagram of the rear side of the local structure of the utility model;

[0029] Figure 4 It is a three-dimensional diagram of the bottom shell and top shell structure of the utility model;

[0030] Figure 5 It is a three-dimensional schematic diagram of the internal structure of the bottom shell of the utility model.

[0031] In the figure: 1 bottom shell, 11 snap-fitting convex strip, 12 lower lock tongue through groove, 13 upper lock tongue through groove, 14 lower clamping piece, 15 limit strip one, 16 limit strip two, 17 fixing strip, 2 top shell, 21 snap-fitting groove, 22 upper clamping piece, 3 side plate, 4 door frame plate, 5 lower lock tongue, 51 oblique teeth, 52 limit through groove, 53 fixing bolt, 6 upper lock tongue, 61 connecting rod, 7 key through groove, 8 lock core, 81 upper rotating ring, 82 lower rotating ring, 9 mounting plate, 91 L-shaped plate, 10 connecting strip, 101 connecting hole. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Embodiment 1

[0033] See also Figure 1-Figure 5 , the utility model provides a technical solution: a narrow-edge lock body, comprising a bottom shell 1;

[0034] A top shell 2 disposed above the bottom shell 1;

[0035] A side plate 3 fixedly arranged on the side of the bottom shell 1;

[0036] and a door frame plate 4 vertically arranged on the outside of the side plate 3;

[0037] An upper locking tongue 6 and a lower locking tongue 5 are arranged in sequence from left to right inside the bottom shell 1;

[0038] A lock core 8 is vertically arranged between the upper lock tongue 6 and the lower lock tongue 5, and the upper and lower ends of the lock core 8 penetrate the top shell 2 and the bottom shell 1 respectively;

[0039] The bottom shell 1 has a lower lock tongue through slot 12 and an upper lock tongue through slot 13 at the outer ends of the lower lock tongue 5 and the upper lock tongue 6, respectively. The side panels 3 have openings at the positions of the lower lock tongue 5 and the upper lock tongue 6.

[0040] A fixing strip 17 is vertically fixedly arranged at the rear end of the bottom shell 1. An upper rotating ring 81 and a lower rotating ring 82 are respectively provided at the upper and lower ends of the lock core 8 through bearing rotation sleeves. A connecting rod 61 is fixedly arranged at the rear end of the upper lock tongue 6. A fixing sleeve is fixedly arranged on the rear end surface of the connecting rod 61. An extrusion sleeve is arranged on the front end surface of the connecting rod 61. The front side of the extrusion sleeve is extruded with a groove on the back side of the side plate 3.

[0041] A mounting plate 9 is horizontally arranged at the inner end of the lower locking tongue 5;

[0042] The outer edge of the top of the bottom shell 1 is evenly and fixedly provided with a snap-fitting convex strip 11, and the top surface of the top shell 2 is provided with a snap-fitting groove 21 at a position corresponding to the snap-fitting convex strip 11, and the snap-fitting convex strip 11 is adapted to the snap-fitting groove 21, and the bottom shell 1 and the top shell 2 are snap-fitted and connected through the snap-fitting convex strip 11 and the snap-fitting groove 21, and the top surfaces of the top shell 2 and the right ends of the bottom shell 1 are provided with a key through groove 7 running through from top to bottom, and a lower clamping piece 14 is fixedly provided on the inner wall of the bottom shell 1 at a position corresponding to the rear end of the connecting rod 61, and an upper clamping piece 22 is fixedly provided on the bottom surface of the top shell 2 at a position corresponding to the rear end of the connecting rod 61, and the lower clamping piece 14 cooperates with the upper clamping piece 22 to clamp and limit the rear end of the connecting rod 61, and the surface of the connecting rod 61 is in sliding contact with the surface of the lower clamping piece 14 and the surface of the upper clamping piece 22, and a spring 1 is sleeved on the front end of the connecting rod 61, and the two ends of the spring 1 are respectively in extrusion contact with the back of the extrusion sleeve and the front of the lower clamping piece 14 and the upper clamping piece 22;

[0043] The side surfaces of the upper rotating ring 81 and the lower rotating ring 82 are fixedly provided with toggle plates, and the two toggle plates are both in clamping contact with the fixed sleeve plate. The other side surface of the lower rotating ring 82 is connected to the fixing strip 17 through a spring 2. A limiting slot 52 is horizontally penetrated at the rear end of the lower locking tongue 5, and a limiting strip 15 is vertically arranged inside the limiting slot 52. The bottom end of the limiting strip 15 is fixedly connected to the inner side surface of the bottom shell 1, and the surface of the limiting strip 15 is in sliding contact with the inner wall of the limiting slot 52. A fixing bolt 53 is fixedly provided on the top surface of the lower locking tongue 5, and a connecting strip 10 is horizontally slidably provided on the top surface of the lower locking tongue 5. Connecting holes 101 are penetrated at both ends of the connecting strip 10, and the connecting strip 10 is sleeved on the fixing bolt 53 through the connecting hole 101 on the right side. A hook plate is fixedly provided on the bottom surface of one end of the upper rotating ring 81, and the connecting strip 10 is sleeved on the hook plate through the connecting hole 101 on the left side.

[0044] Furthermore, the shell connection of this embodiment adopts the bottom shell 1 to be integrally formed and connected to each other, compressing the internal space, making its outer dimensions thinner, and facilitating installation and use on thinner doors; Embodiment 2

[0045] See also Figure 1-Figure 5 , and on the basis of Example 1, it is further obtained that: the bottom surface of the mounting plate 9 is in sliding contact with the inner bottom surface of the bottom shell 1, the bottom surface of the lower lock tongue 5 is in sliding contact with the top surface of the mounting plate 9, a sliding groove is horizontally penetrated through the top surface of the mounting plate 9, an L-shaped plate 91 is fixedly provided on the top surface of the mounting plate 9 at the position corresponding to the sliding groove, a helical tooth 51 is fixedly provided on the side of the lower lock tongue 5, and the side of the helical tooth 51 is in extrusion contact with the side of the L-shaped plate 91, a limiting strip 16 is provided inside the sliding groove, and the bottom surface of the limiting strip 16 is fixedly connected to the inner bottom surface of the bottom shell 1, a spring 3 is horizontally provided between the L-shaped plate 91 and the limiting strip 16, and the two ends of the spring 3 are respectively fixedly connected to the side of the L-shaped plate 91 and the side of the limiting strip 16.

[0046] Furthermore, in this embodiment, the lower lock tongue 5 adopts an integrated folded structure, which does not need to be connected again, is firm and has a simple structure; the internal transmission parts have a streamlined structure while being able to realize the functions of closing, locking, unlocking, reverse locking, and linked unlocking of the door.

[0047] When in use, the lower lock tongue 5 adopts an integrated folded structure, which does not need to be connected again, is firm and has a simple structure; the internal transmission parts have a streamlined structure while being able to realize the functions of closing the door, locking, unlocking, reverse locking, and linked unlocking; the outer shell connection adopts the bottom shell 1 to be integrally formed and connected to each other, compressing the internal space, making its external dimensions thinner, and facilitating installation and use on thinner doors.

[0048] 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 appended claims and their equivalents.

Claims

1. A narrow-edge lock body, comprising a bottom shell (1); A top shell (2) arranged above the bottom shell (1); A side plate (3) fixedly arranged on the side of the bottom shell (1); and a door frame plate (4) vertically arranged on the outside of the side plate (3); Features: An upper locking tongue (6) and a lower locking tongue (5) are arranged in sequence from left to right inside the bottom shell (1); A lock core (8) is vertically arranged between the upper lock tongue (6) and the lower lock tongue (5), and the upper and lower ends of the lock core (8) are respectively arranged to penetrate the top shell (2) and the bottom shell (1); The side surface of the bottom shell (1) is provided with a lower lock tongue through groove (12) and an upper lock tongue through groove (13) at the outer ends of the lower lock tongue (5) and the upper lock tongue (6), respectively, and the side surface of the side plate (3) is provided with through openings at the positions of the lower lock tongue (5) and the upper lock tongue (6); A fixing strip (17) is vertically fixedly disposed inside the rear end of the bottom shell (1); an upper rotating ring (81) and a lower rotating ring (82) are respectively rotatably sleeved on the upper and lower ends of the lock core (8) through bearings; a connecting rod (61) is fixedly disposed at the rear end of the upper lock tongue (6); a fixing sleeve is fixedly sleeved on the rear end surface of the connecting rod (61); an extrusion sleeve is sleeved on the front end surface of the connecting rod (61); a front extrusion sleeve has an extrusion groove formed on the back of the side plate (3); A mounting plate (9) is horizontally arranged at the inner end of the lower locking tongue (5).

2. A narrow-edge lock body according to claim 1, characterized in that: The outer edge of the top end of the bottom shell (1) is evenly and fixedly provided with snap-fitting convex strips (11), and the top surface of the top shell (2) is provided with snap-fitting grooves (21) at positions corresponding to the snap-fitting convex strips (11). The snap-fitting convex strips (11) are matched with the snap-fitting grooves (21), and the bottom shell (1) and the top shell (2) are snap-fitted and connected via the snap-fitting convex strips (11) and the snap-fitting grooves (21).

3. A narrow-edge lock body according to claim 2, characterized in that: A key through slot (7) is provided on the top surfaces of the right ends of the top shell (2) and the bottom shell (1) from top to bottom, the bottom shell (1) inner wall is fixedly provided with a lower clamping member (14) at a position corresponding to the rear end of the connecting rod (61), and the top shell (2) bottom surface is fixedly provided with an upper clamping member (22) at a position corresponding to the rear end of the connecting rod (61), the lower clamping member (14) cooperates with the upper clamping member (22) to clamp and restrict the rear end of the connecting rod (61), and the surface of the connecting rod (61) is in sliding contact with the surface of the lower clamping member (14) and the surface of the upper clamping member (22).

4. A narrow-edge lock body according to claim 3, characterized in that: The front end of the connecting rod (61) is sleeved with a spring 1, and the two ends of the spring 1 are respectively in extrusion contact with the back side of the extrusion sleeve plate and the front sides of the lower clamping piece (14) and the upper clamping piece (22).

5. A narrow-edge lock body according to claim 4, characterized in that: A toggle plate is fixedly provided on the side of the upper rotating ring (81) and the side of the lower rotating ring (82), and both toggle plates are in clamping contact with the fixed sleeve plate. The other side of the lower rotating ring (82) is connected to the fixed strip (17) via a second spring.

6. A narrow-edge lock body according to claim 5, characterized in that: A limit slot (52) is horizontally formed through the rear end of the lower locking tongue (5), a limit strip (15) is vertically arranged inside the limit slot (52), the bottom end of the limit strip (15) is fixedly connected to the inner side surface of the bottom shell (1), and the surface of the limit strip (15) is in sliding contact with the inner wall of the limit slot (52).

7. A narrow-edge lock body according to claim 6, characterized in that: A fixing bolt (53) is fixedly provided on the top surface of the lower locking tongue (5), a connecting strip (10) is horizontally slidably provided on the top surface of the lower locking tongue (5), connecting holes (101) are provided through both ends of the connecting strip (10), the connecting strip (10) is sleeved on the fixing bolt (53) through the right connecting hole (101), a hook plate is fixedly provided on the bottom surface of one end of the upper rotating ring (81), and the connecting strip (10) is sleeved on the hook plate through the left connecting hole (101).

8. A narrow-edge lock body according to claim 7, characterized in that: The bottom surface of the mounting plate (9) is in sliding contact with the bottom surface of the inner side of the bottom shell (1), the bottom surface of the lower locking tongue (5) is in sliding contact with the top surface of the mounting plate (9), a sliding groove is horizontally penetrated through the top surface of the mounting plate (9), an L-shaped plate (91) is fixedly arranged on the top surface of the mounting plate (9) at a position corresponding to the sliding groove, a side surface of the lower locking tongue (5) is fixedly arranged with an oblique tooth (51), the side surface of the oblique tooth (51) is in extrusion contact with the side surface of the L-shaped plate (91), a second limiting strip (16) is arranged inside the sliding groove, the bottom surface of the second limiting strip (16) is fixedly connected to the bottom surface of the inner side of the bottom shell (1), a third spring is horizontally arranged between the L-shaped plate (91) and the second limiting strip (16), and the two ends of the third spring are respectively fixedly connected to the side surface of the L-shaped plate (91) and the side surface of the second limiting strip (16).

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