CN210976984U

CN210976984U - Central control bolt lock

Info

Publication number: CN210976984U
Application number: CN201921083912.4U
Authority: CN
Inventors: 胡利恒
Original assignee: Zhongshan Olang Metal Products Co ltd
Current assignee: Guangdong Oulang Security Technology Co.,Ltd.
Priority date: 2019-07-11
Filing date: 2019-07-11
Publication date: 2020-07-10
Anticipated expiration: 2029-07-11

Abstract

The utility model provides a well accuse bolt lock, including handle, first direction pull rod subassembly, interlock piece, second direction pull rod subassembly and driving plate, wherein, the handle includes interconnect's the portion of carrying and transmission portion. The first direction pull rod assembly extends towards the first direction and comprises a first notch. The linkage sheet comprises a hinge end and a first clamping end which are opposite, the hinge end is hinged with the transmission part, and the first clamping end is clamped with the first notch. The second tie rod assembly extends in a second direction opposite the first direction. The transmission plate is clamped between the first direction pull rod assembly and the second direction pull rod assembly. The utility model provides a well accuse bolt lock is through with the driving plate joint between first direction pull rod subassembly and second direction pull rod subassembly for can simultaneous control first direction pull rod subassembly and second direction pull rod subassembly through the handle, the convenience of well accuse bolt lock control bolt has been promoted.

Description

Central control bolt lock

Technical Field

The utility model relates to a lock technical field particularly, relates to a well accuse bolt lock.

Background

The composite door is a special double-door split door, which is composed of a narrower sub door and a wider main door. In actual use, the sub-door is usually closed, and in some specific cases, for example, when large furniture or household appliances need to be carried, the sub-door is opened, and the main door is normally opened or closed. The sub-doors are usually secured to the frame by upper and lower separate bolts. The general bolt lock body is through adjusting last bolt and lower bolt respectively, controls opening or closing of sub-door, and the user need fill up the foot or squat down just can adjust the bolt, and the user's of not being convenient for operation is difficult to satisfy user's demand.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a well accuse bolt lock to solve above-mentioned problem. The embodiment of the utility model provides an above-mentioned purpose is realized through following technical scheme.

The utility model provides a well accuse bolt lock, including handle, first direction pull rod subassembly, interlock piece, second direction pull rod subassembly and driving plate, wherein, the handle includes interconnect's the portion of carrying and transmission portion. The first direction pull rod assembly extends towards the first direction and comprises a first notch. The linkage sheet comprises a hinge end and a first clamping end which are opposite, the hinge end is hinged with the transmission part, and the first clamping end is clamped with the first notch. The second tie rod assembly extends in a second direction opposite the first direction. The transmission plate is clamped between the first direction pull rod assembly and the second direction pull rod assembly.

In an embodiment, the central control bolt lock further comprises a housing, the housing comprises a bottom wall and a first side wall which are vertically connected, the handle is installed on the first side wall, the first direction pull rod assembly comprises a first end portion, the second direction pull rod assembly comprises a second end portion, the transmission plate comprises a first buckling portion, an installation portion and a second buckling portion which are sequentially connected, the installation portion is movably installed on the bottom wall, the first buckling portion is provided with a first bayonet, the first bayonet is clamped with the first end portion, the second buckling portion is provided with a second bayonet, and the second bayonet is clamped with the second end portion.

In an embodiment, the bottom wall is provided with a first limiting groove and a second limiting groove, the first end is provided with a first limiting column corresponding to the first limiting groove, the first limiting column is clamped with the first bayonet and penetrates through the first limiting groove, the second end is provided with a second limiting column corresponding to the second limiting groove, and the second limiting column is clamped with the second bayonet and penetrates through the second limiting groove.

In one embodiment, the first and second limiting grooves are parallel and are located on both sides of the mounting portion.

In one embodiment, the central control latch lock further includes a first elastic member, a fixing member and a fixing plate, the fixing plate is fixed to the bottom wall, the fixing member is engaged with the first direction lever assembly, and the first elastic member is wound around the fixing member and disposed between the fixing plate and the first end portion.

In one embodiment, the deadbolt lock further includes a second resilient member coupled between the housing and the second tie rod assembly.

In an implementation mode, the bottom wall is provided with an installation column, the transmission part comprises a first hinge interface and a second hinge interface which are adjacent to each other, the first hinge interface is hinged to the hinge end, the central control bolt lock further comprises a first connecting piece and a second connecting piece, one end of the first connecting piece is hinged to the second hinge interface, the other end of the first connecting piece is hinged to the second connecting piece, and the second connecting piece and the installation part are both installed on the installation column.

In one embodiment, the central control latch lock further comprises a reset piece, and the reset piece is mounted on the mounting post and abuts against the second connecting piece and the first direction pull rod assembly.

In one embodiment, the second connecting member includes a second engaging end and a mounting end, the mounting end is mounted on the mounting post, the second engaging end is hinged to the first connecting member and has an engaging protrusion, the first direction lever assembly further includes a second notch corresponding to the engaging protrusion, the second notch is spaced from the first notch, and the engaging protrusion is engaged with or separated from the second notch according to the rotation of the second connecting member relative to the mounting post.

In an embodiment, second direction pull rod assembly includes the third breach, well accuse bolt lock still includes the cardboard, the button subassembly, fixed column and torsional spring, the cardboard is including the joint portion that connects gradually, articulated portion and press the splenium, articulated portion rotationally installs in the diapire, the button subassembly passes first lateral wall, the movably installation in the diapire of fixed column, the button subassembly passes through the fixed column and presses the splenium articulated, joint portion is for the rotation of diapire and third breach block or separation according to articulated portion, the torsional spring is installed in articulated portion, the one end card of torsional spring is at the fixed column, the other end card is at a mounting.

Compared with the prior art, the utility model provides a well accuse bolt lock is through with the driving plate joint between first direction pull rod subassembly and second direction pull rod subassembly for can control first direction pull rod subassembly and second direction pull rod subassembly simultaneously through the handle, the convenience of well accuse bolt lock control bolt has been promoted.

These and other aspects of the invention will be apparent from and elucidated with reference to the embodiments described hereinafter.

Drawings

In order to more clearly illustrate the technical solution of the present embodiment, the drawings needed to be used in the description of the embodiment will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a closed state of a central control latch lock according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a central control latch lock according to another view angle of the closed state of the present invention.

Fig. 3 is a schematic structural diagram of a housing of a central control latch lock according to an embodiment of the present invention.

Fig. 4 is an exploded view of a central control latch lock according to an embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a central control latch lock according to an embodiment of the present invention.

Fig. 6 is a schematic structural diagram of an open state of a central control latch lock according to an embodiment of the present invention.

Detailed Description

To facilitate an understanding of the present embodiments, the present embodiments will be described more fully below with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the present examples is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1 and 2, the present invention provides a central control latch lock 1, which includes a handle 20, a first direction lever assembly 30, a linkage plate 40, a second direction lever assembly 50, and a transmission plate 60, wherein the handle 20 includes a lifting portion 21 and a transmission portion 23 connected to each other. The first direction pull rod assembly 30 extends in the first direction D1 and includes a first notch 35. The linking plate 40 includes a hinge end 43 and a first engaging end 41, the hinge end 43 is hinged to the transmission portion 23, and the first engaging end 41 is engaged with the first notch 35. The second tie rod assembly 50 extends in a second direction D2 opposite the first direction D1. The driving plate 60 is clamped between the first and second

tie rod assemblies

30 and 50.

Referring to fig. 2 and 3, in particular, the central control latch lock 1 includes a housing 10, the housing 10 includes a bottom wall 11 and a first side wall 13 that are vertically connected, wherein the bottom wall 11 is substantially rectangular, the bottom wall 11 is provided with a first limiting groove 111 and a second limiting groove 112, the first limiting groove 111 and the second limiting groove 112 are both in a long strip shape, the first limiting groove 111 and the second limiting groove 112 are parallel, the first limiting groove 111 and the second limiting groove 112 are located at two sides of the mounting portion 63, the extending direction of the first limiting groove 111 and the second limiting groove 112 is the same as the direction of the first side wall 13, the first limiting groove 111 can be used to limit the moving direction of the first locking portion 61, for example, the first locking portion 61 can only move along the direction parallel to the first side wall 13 and close to the bottom wall 11. The second limiting groove 112 may be used to limit the moving direction of the second locking portion 65.

The bottom wall 11 is further provided with mounting posts 113, and the mounting posts 113 can be used for fixing a driving plate and the like.

The length of the first sidewall 13 can be set according to practical conditions such as the height of the sub-door, and the first sidewall 13 includes a receiving groove 132 and at least one through hole, wherein the receiving groove 132 can be used for receiving the handle 20. The through hole can be used for penetrating through fasteners such as screws to install the central control bolt lock 1 on the sub-door, the cover plate 15 can be matched with the bottom wall 11 and the first side wall 13 to form an accommodating space, and the accommodating space can be used for accommodating structures such as the first direction pull rod assembly 30.

The bottom wall 11 is further provided with a third limiting groove 114 and a fourth limiting groove 115, the third limiting groove 114 and the fourth limiting groove 115 may have the same shape as the first limiting groove 111, the third limiting groove 114 is parallel to the fourth limiting groove 115 and extends along a direction parallel to the first side wall 13, the third limiting groove 114 and the first limiting groove 111 extend along the same straight line, and the third limiting groove 114 may be configured to limit a movement direction of the first direction pull rod assembly 30, for example, the movement direction is the first direction D1 or the second direction D2. The fourth limiting groove 115 extends along the same straight line as the second limiting groove 112, and the fourth limiting groove 115 can be used for limiting the movement direction of the second direction pull rod assembly 50, for example, the movement direction is the first direction D1 or the second direction D2.

The housing 10 further comprises a second side wall 14, the second side wall 14 is connected to both the bottom wall 11 and the first side wall 13, and the second side wall 14 is located on a side of the housing 10 away from the handle 20.

Referring to fig. 1 and 4, in the present embodiment, the handle 20 may be rod-shaped, and the cross section of the handle 20 is rectangular. In other embodiments, the cross section of the handle 20 may also be circular, oval, etc., and is not limited herein. The handle 20 is rotatably mounted to the bottom wall 11. The handle 20 is mounted on the first side wall 13, the handle 20 includes a pulling portion 21 and a transmission portion 23 connected to each other, the pulling portion 21 and the transmission portion 23 are respectively located at two opposite ends of the handle 20, wherein the pulling portion 21 is received in the receiving groove 132 of the first side wall 13, a user can control the opening of the plug pin by rotating the pulling portion 21, and a side of the pulling portion 21 away from the transmission portion 23 further includes a rounded corner, which is more beneficial for the user to use the handle 20.

The transmission portion 23 is located on the bottom wall 11, and the transmission portion 23 further includes a first hinge interface 231 and a second hinge interface 235 which are adjacent to each other, the first hinge interface 231 is hinged to the hinge end 43, and the second hinge interface 235 is hinged to the first connecting member.

The linkage plate 40 is hinged to the transmission portion 23, the linkage plate 40 rotates around the transmission portion 23 along with the rotation of the lifting portion 21, the linkage plate 40 includes a first engaging end 41 and a hinge end 43, the hinge end 43 is hinged to the transmission portion 23, the linkage plate 40 is further engaged with the first direction lever assembly 30, the first engaging end 41 of the linkage plate 40 is engaged with the first notch 35 of the first direction lever assembly 30, and the first direction lever assembly 30 moves along a direction parallel to the first side wall 13 along with the rotation of the linkage plate 40.

The first direction tie rod assembly 30 is substantially elongated, and the first direction tie rod assembly 30 may be formed by stacking a plurality of layers to increase the tensile or compressive strength of the first direction tie rod assembly 30. The first direction pull rod assembly 30 extends to a first direction D1, wherein the first direction D1 is parallel to the first side wall 13. The first direction pull rod assembly 30 includes a first end 31, a second notch 33, a first notch 35 and a third end 37 along the first direction D1.

The first end portion 31 is opened with an opening 311, the opening 311 faces a direction opposite to the first direction D1, and the first end portion 31 is provided with a first stopper post 313 corresponding to the first stopper groove 111. The first position-limiting post 313 penetrates through the first direction pull rod assembly 30 along a direction perpendicular to the bottom wall 11, and the first position-limiting post 313 is engaged with the first bayonet 611 and penetrates through the first position-limiting groove 111, so that the first position-limiting post 313 moves along the position-limiting groove 111, and the first direction pull rod assembly 30 moves along the position-limiting groove 111.

The second notch 33 and the first notch 35 both face the first sidewall 13, the first notch 35 and the second notch 33 are disposed at an interval, the first notch 35 cooperates with the linkage plate 40, and the first engaging end 41 of the linkage plate 40 directly abuts against the first direction pull rod assembly 30.

The third end 37 is fitted with a first direction pull rod 38, such as an upper pull rod, which extends upwardly to engage an upper latch mounted on the top of the door.

The central control latch lock 1 further comprises a first elastic member 70, a fixing piece 71 and a fixing piece 72.

In the present embodiment, the fixing piece 71 is a multi-stage bent piece, and the fixing piece 71 is fixed to the housing 10, specifically, the fixing piece 71 may be fixed to the bottom wall 11.

In another embodiment, the fixing piece 71 may be plate-shaped, and the fixing piece 71 may be fixed to the cover plate 15 or the first side wall 13.

The first elastic member 70 is disposed between the fixing piece 71 and the first end portion 31. The first elastic member 70 may be directly independent of the fixing plate 71 and the first direction lever assembly 30, and may be connected to at least the fixing plate 71 or the first direction lever assembly 30. The first elastic member 70 is disposed around the fixing member 72, and the first elastic member 70 is used for resetting the first direction lever assembly 30 and the second direction lever assembly 50. assuming that the first direction lever assembly 30 and the second direction lever assembly 50 have an initial position respectively, when the handle 20 drives the first direction lever assembly 30 to move along the second direction D2, the first elastic member 70 is compressed, and when the acting force applied to the handle 20 disappears, the first direction lever assembly 30 moves to the initial position along the first direction D1 by the restoring action of the first elastic member 70, the first direction lever assembly 30 drives the transmission plate 60 to rotate, thereby driving the second direction lever assembly 50 to move to the initial position.

The fixing member 72 is rod-shaped, the fixing member 72 is disposed through the fixing plate 71 and can freely move in a direction parallel to the first sidewall 13, the fixing member 72 is fixed to the first direction lever assembly 30, specifically, the fixing member 72 is matched with the opening 311 to connect to the first direction lever assembly 30, and the fixing member 72 can be used for sleeving the first elastic member 70.

The second tie rod assembly 50 is similar in shape and size to the first tie rod assembly 30, and the second tie rod assembly 50 extends in a second direction D2 opposite the first direction D1.

The second tie rod assembly 50 includes, in order along the second direction D2, a second end portion 52 and a fourth end portion 54.

The second end portion 52 is indirectly connected to the first direction pull rod assembly 30, the second end portion 52 is provided with a second limiting post 523 corresponding to the second limiting groove 112, the second limiting post 523 penetrates through the second direction pull rod assembly 50 along a direction perpendicular to the bottom wall 11, and the second limiting post 523 is engaged with the second bayonet 651 and penetrates through the second limiting groove 112, so that the second limiting post 523 moves along the second limiting groove 112, and the second direction pull rod assembly 50 moves along the limiting groove 111.

The fourth end 54 is fitted with a second direction pull bar 39, such as a down pull bar, which extends downwardly to engage a lower latch pin mounted on the bottom of the door.

The second tie rod assembly 50 further includes a third notch 56, the third notch 56 faces the first sidewall 13 and is close to the second sidewall 14, and the third notch 56 can be used for engaging with the catch plate 95.

Referring to fig. 1 and 5, in one embodiment, the central control latch lock 2 may further include only a second elastic member 80, and the second elastic member 80 is connected between the housing 10 and the second direction lever assembly 50, and specifically, the second elastic member 80 is connected between the second side wall 14 and the fourth end portion 54. The first elastic member 80 is used for resetting the first direction pull rod assembly 30 and the second direction pull rod assembly 50, and the second elastic member 80 can be referred to the first elastic member 70, except that the second elastic member 80 is in a stretched state after the handle 20 is pulled.

With continued reference to fig. 1 and 4, the central control latch lock 1 further includes a transmission plate 60, the transmission plate 60 is rotatably mounted to the housing 10, specifically, the transmission plate 60 is rotatably mounted to the bottom wall 11 through a mounting post 113, and the transmission plate 60 is clamped between the first direction lever assembly 30 and the second direction lever assembly 50. The transmission plate 60 is located between the first direction pull rod assembly 30 (or the second direction pull rod assembly 50) and the bottom wall 11 as viewed from a direction perpendicular to the bottom wall 11.

The transmission plate 60 includes a first engaging portion 61, a mounting portion 63, and a second engaging portion 65 connected in this order.

In the present embodiment, the first locking portion 61 has a first locking notch 611, the first locking notch 611 has a U shape, the first locking notch 611 is formed in a direction parallel to the outer wall of the transmission plate 60, and the first locking notch 611 is engaged with the first end portion 31.

The second bayonet 651 is formed in the second fastening portion 65, the second bayonet 651 is U-shaped, the opening direction of the second bayonet 651 is opposite to the opening direction of the first bayonet 611, and the second bayonet 651 is fastened to the second end portion 52.

The mounting portion 63 is movably mounted to the bottom wall 11, specifically, the mounting portion 63 is mounted to the mounting post 113, and the mounting portion 63 is located between the bottom wall 11 and the second connecting member 90.

In other embodiments, the first and

second latch portions

61 and 65 may each include a through hole, which may be used to connect the transmission plate 60 with the first or second

tie rod assembly

30 or 50.

In this embodiment, the central control latch lock 1 further includes a first connecting member 81 and a second connecting member 90, the first connecting member 81 is rod-shaped, the first connecting member 81 is hinged to the transmission portion 23, specifically, one end of the first connecting member 81 is hinged to the second hinge port 235, and the other end of the first connecting member 81 is hinged to the second connecting member 90.

The second connecting member 90 is rod-shaped, the second connecting member 90 is hinged to the first connecting member 81, and the second connecting member 90 and the handle 20 are respectively connected to two ends of the first connecting member 81. The second connector 90 is mounted to the mounting post 113.

In other embodiments, the second connecting member 90 may be directly hinged to the bottom wall 11.

The second connecting member 90 includes a second engaging end 92 and a mounting end 94, the second engaging end 92 is adjacent to the first connecting member 81 and is hinged to the first connecting member 81, the second engaging end 92 includes a engaging protrusion 921, the engaging protrusion 921 protrudes along the radial direction of the second engaging end 92, the engaging protrusion 921 corresponds to the second notch 33 to limit the movement of the first direction lever assembly 30, and the engaging protrusion 921 engages with or disengages from the second notch 33 according to the rotation of the second connecting member 90 relative to the mounting post 113. The mounting end 94 is mounted to a mounting post 113,

the central control latch lock 1 further includes a reset element 91, the reset element 91 is mounted on the mounting post 113, the reset element 91 abuts against the second connecting element 90 and the first direction pull rod assembly 30, specifically, the reset element 91 abuts between the second connecting element 90 and the first end 31, the reset element 91 is used for returning the third rotating element to the initial position after rotating a predetermined angle, and the initial position corresponds to the second engaging end 92 abutting against the second notch 33.

The central control latch lock 1 further comprises a catch plate 95, a button assembly 96, a fixed column 97 and a torsion spring 98. The card board 95 includes a card connector 951, a hinge portion 953, and a pressing portion 955 connected in this order, wherein the hinge portion 953 is rotatably mounted on the bottom wall 11, and the card connector 951 engages with or separates from the third notch 56 according to the rotation of the hinge portion 953 with respect to the bottom wall 11. The fixing post 97 is movably mounted on the bottom wall 11, specifically, the bottom wall 11 includes a limiting groove perpendicular to the first side wall 13, and the fixing post 97 is inserted into the limiting groove, so that the fixing post 97 moves in a direction perpendicular to the first side wall 13. A button assembly 96 passes through the first side wall 13, and the button assembly 96 is hinged to the pressing portion 955 through a fixing post 97. The torsion spring 98 is mounted on the hinge portion 953, one end of the torsion spring 98 is clamped on the fixing column 97, and the other end is clamped on a fixing member.

Referring to fig. 4 and 6 together, the operation of the central control deadbolt lock 1 will be described as a specific example, assuming that the central control deadbolt lock 1 is installed in a sub-door.

When the pulling portion 21 is pulled, the first connecting member 81 moves toward the first sidewall 13 to drive the second connecting member 90 to rotate counterclockwise around the mounting portion 63, so that the engaging protrusion 921 of the second engaging end 92 is separated from the second notch 33. When the lifting portion 21 is continuously pulled, the linkage plate 40 moves together with the handle 20, the first engaging end 41 abuts against the first direction pull rod assembly 30 to enable the first direction pull rod assembly 30 to move along the second direction D2, on one hand, the upper plug pin can be unlocked, on the other hand, the first direction pull rod assembly 30 drives the transmission plate 60 to rotate clockwise, so that the second direction pull rod assembly 50 is lifted upwards to unlock the upper plug pin, and the engaging portion 951 of the engaging plate 95 can be engaged with the third notch 56 in the process of lifting the second direction pull rod assembly 50 upwards. In summary, the unlocking of the upper and lower latches can be controlled simultaneously by pulling the lifting portion 21, so that the sub-door can be opened, and the operation of the user is facilitated.

When the lifting part 21 is released, the lower plug pin cannot move downwards to realize locking because the clamping part 951 of the clamping plate 95 is clamped with the third notch 56, so that the upper plug pin and the lower plug pin are prevented from automatically extending out when the lifting part 21 is released, and the lifting part 21 is prevented from being released again when the door is closed. At this time, the button assembly 96 is pressed, and the pressing portion 955 moves away from the first sidewall 13, so that the engaging portion 951 moves toward the first sidewall 13, and the engaging portion 951 is separated from the third notch 56. On one hand, the first direction pull rod assembly 30 moves along the first direction D1 under the action of the first elastic element 70 to achieve the locking of the upper latch, the first direction pull rod assembly 30 drives the transmission plate 60 to rotate counterclockwise, and the transmission plate 60 drives the second direction pull rod assembly 50 to move along the second direction D2 to achieve the locking of the lower latch. On the other hand, the second connecting member 90 rotates clockwise under the action of the reset member 91, and the second engaging end 92 is directly engaged with the second notch 33 to form self-locking of the upper and lower plugs, thereby preventing unlocking of the upper and lower plugs under the action of external force. The second connecting member 90 also drives the first connecting member 81 to move away from the first sidewall 13, so that the lifting portion 21 moves toward the first sidewall 13 and is finally received in the receiving groove 132. In summary, after the handle 20 is released, the handle 20 can automatically rebound until being received in the receiving groove 132, so as to protect the handle 20 and prevent the handle 20 from protruding from the first sidewall 13 to cause inconvenience to a user.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A central control deadbolt lock, comprising:

the handle comprises a lifting part and a transmission part which are connected with each other;

the first direction pull rod assembly extends towards the first direction and comprises a first notch;

the linkage sheet comprises a hinge end and a first clamping end which are opposite, the hinge end is hinged with the transmission part, and the first clamping end is clamped with the first notch;

a second tie rod assembly extending in a second direction opposite the first direction; and

and the transmission plate is clamped between the first direction pull rod assembly and the second direction pull rod assembly.

2. The central control latch lock according to claim 1, further comprising a housing, wherein the housing includes a bottom wall and a first side wall that are vertically connected, the handle is mounted to the first side wall, the first direction lever assembly includes a first end portion, the second direction lever assembly includes a second end portion, the transmission plate includes a first locking portion, a mounting portion, and a second locking portion that are sequentially connected, the mounting portion is movably mounted to the bottom wall, the first locking portion defines a first locking opening, the first locking opening is engaged with the first end portion, the second locking portion defines a second locking opening, and the second locking opening is engaged with the second end portion.

3. The central control bolt lock according to claim 2, wherein the bottom wall is provided with a first limiting groove and a second limiting groove, the first end is provided with a first limiting post corresponding to the first limiting groove, the first limiting post is engaged with the first bayonet and inserted into the first limiting groove, the second end is provided with a second limiting post corresponding to the second limiting groove, and the second limiting post is engaged with the second bayonet and inserted into the second limiting groove.

4. The central control latch lock according to claim 3, wherein the first and second retaining grooves are parallel, the first and second retaining grooves being located on opposite sides of the mounting portion.

5. The central control latch lock according to claim 2, further comprising a first resilient member, a securing member and a securing plate, wherein the securing plate is secured to the bottom wall, the securing member is secured to the first direction lever assembly, and the first resilient member is disposed around the securing member and between the securing plate and the first end portion.

6. The central control latch lock according to claim 2, further comprising a second resilient member coupled between the housing and the second direction pull rod assembly.

7. The central control bolt lock according to claim 2, wherein the bottom wall is provided with a mounting post, the transmission part comprises a first hinge port and a second hinge port which are adjacent to each other, the first hinge port is hinged to the hinge end, the central control bolt lock further comprises a first connecting piece and a second connecting piece, one end of the first connecting piece is hinged to the second hinge port, the other end of the first connecting piece is hinged to the second connecting piece, and the second connecting piece and the mounting part are both mounted on the mounting post.

8. The central control latch lock according to claim 7, further comprising a reset member mounted to the mounting post and abutting the second link and the first direction linkage assembly.

9. The central control latch lock according to claim 7, wherein the second connecting member includes a second engaging end and a mounting end, the mounting end is mounted to the mounting post, the second engaging end is hinged to the first connecting member and has an engaging protrusion, the first directional lever assembly further includes a second notch corresponding to the engaging protrusion, the second notch is spaced apart from the first notch, and the engaging protrusion engages with or disengages from the second notch according to rotation of the second connecting member relative to the mounting post.

10. The central control latch lock according to claim 2, wherein the second directional lever assembly includes a third notch, the central control latch lock further includes a catch plate, a button assembly, a fixing post and a torsion spring, the catch plate includes a catch portion, a hinge portion and a pressing portion connected in sequence, the hinge portion is rotatably mounted to the bottom wall, the button assembly passes through the first side wall, the fixing post is movably mounted to the bottom wall, the button assembly is hinged to the pressing portion through the fixing post, the catch portion engages with or disengages from the third notch according to rotation of the hinge portion relative to the bottom wall, the torsion spring is mounted to the hinge portion, one end of the torsion spring is caught at the fixing post, and the other end of the torsion spring is caught at a fixing member.