CN219754302U - Main lock body and conjoined lock - Google Patents

Abstract

The utility model provides a main lock body, which comprises a shell, a top-bottom pin, a clamping assembly and an adjusting piece, wherein the top-bottom pin is movably arranged on the shell and can be fixedly connected with a secondary main lock body, can move along a first direction and can extend or retract relative to the shell; the clamping assembly is movably arranged on the shell and can move along a second direction so as to be propped against the top-bottom pin, and the first direction is different from the second direction; the adjusting piece is arranged on one of the shell and the clamping assembly and is movably connected with the other of the shell and the clamping assembly so as to drive the clamping assembly to move along the second direction. The top and bottom pins and the clamping components of the main lock body are movably arranged on the shell, the moving directions of the top and bottom pins and the clamping components are different, the clamping components are driven by the adjusting piece to prop against the top and bottom pins, the top and bottom pins of the main lock body can be just connected with the auxiliary lock body, and the installation difficulty of the auxiliary lock body is reduced. The utility model also provides a conjoined lock.

Description

Main lock body and conjoined lock

Technical Field

The utility model relates to the technical field of locks, in particular to a main lock body and a conjoined lock.

Background

The existing main lock body is divided into two types according to the difference of the actions of the top and bottom pins, the top and bottom pins of the first main lock body are used for being connected with the auxiliary lock body, the auxiliary lock bodies at the upper end and the lower end can be driven by the top and bottom pins to simultaneously pop up the lock tongue to fix the door body, or the auxiliary lock bodies are driven to simultaneously retract the lock tongue so as to facilitate the door opening; the top and bottom pins of the second main lock body are also connected with the auxiliary lock body, but the top and bottom pins of the main lock body are only used for positioning the auxiliary lock body, so that the installation of the auxiliary lock body is realized, and the top and bottom pins can not drive the auxiliary lock bodies at the upper end and the lower end to pop up the lock tongue simultaneously.

For the second lock body, in the process of installing the auxiliary lock body, the extension length of the top and bottom pins of the existing main lock body is kept fixed, however, the strokes of the top and bottom pins of different manufacturers are different, so that the top and bottom pins of the existing main lock body cannot be connected with the auxiliary lock body, and the problems of poor installation or high installation difficulty of the auxiliary lock body are caused. In addition, the world round pin of current main lock body is inconvenient to pull down for the main lock body can't be applied to the scene that does not need world round pin, has influenced the application range of main lock body.

Disclosure of Invention

The embodiment of the utility model aims to provide a main lock body and a conjoined lock so as to solve the problems.

The embodiment of the utility model realizes the aim through the following technical scheme.

In a first aspect, the present utility model provides a primary lock body, including a housing, a top-bottom pin, a locking assembly, and an adjusting member, where the top-bottom pin is movably disposed in the housing and can be fixedly connected with a secondary primary lock body, and the top-bottom pin can move along a first direction and can extend or retract relative to the housing; the clamping assembly is movably arranged on the shell and can move along a second direction so as to be propped against the world pin, and the first direction is different from the second direction; the adjusting piece is arranged in one of the shell and the clamping assembly and is movably connected with the other of the shell and the clamping assembly so as to drive the clamping assembly to move along the second direction.

In one embodiment, the locking assembly comprises a fixing base and a pin locking piece, the pin locking piece can be propped against the top and bottom pins, the fixing base is connected to the pin locking piece, and the fixing base is movably connected with the adjusting piece.

In one embodiment, the pin engaging member includes a main body portion, a first engaging portion and a second engaging portion, the first engaging portion and the second engaging portion are both connected to the main body portion, the fixing base is connected to the main body portion, the first engaging portion and the second engaging portion are disposed on two sides of the fixing base, and can abut against the top and bottom pins, and a distance between the first engaging portion and the second engaging portion is gradually increased along the second direction.

In one embodiment, the housing comprises a bottom plate and a side plate, wherein the bottom plate comprises an inner surface and an outer surface which are opposite to each other, the top and bottom pins are movably arranged on the inner surface and penetrate through the side plate, the bottom plate is further provided with a guide hole penetrating through the inner surface and the outer surface, and the clamping assembly penetrates through the guide hole and can protrude out of the outer surface.

In one embodiment, the bottom plate is further provided with a mounting hole, and the adjusting member is penetrated through the mounting hole and exposed on the outer surface.

In one embodiment, the main lock body further comprises an elastic member connected between the engagement assembly and the housing, the elastic member being adapted to provide an elastic force of the engagement assembly to be separated from the top-bottom pin.

In one embodiment, one of the top and bottom pins and the housing is provided with a guide slot, the other is provided with a guide piece, the guide slot extends along the first direction, and the guide piece penetrates through the guide slot.

In one embodiment, the top and bottom pin includes opposite connection ends and free ends, the connection ends are adapted to be in driving connection with the secondary lock body, the guide member is fixedly disposed in the housing, the guide slot is disposed in the free end, and the guide slot penetrates an end face of the free end.

In one embodiment, the guide member is provided with a through hole, an axis of the through hole extends along the second direction, the adjusting member is arranged through the through hole, and the adjusting member is in threaded connection with the clamping assembly.

In a second aspect, the present utility model further provides a one-piece lock, where the one-piece lock includes a secondary lock body, a connecting rod, and the primary lock body according to any one of the foregoing embodiments, where the connecting rod is connected between a top-bottom pin of the primary lock body and the secondary lock body.

Compared with the prior art, the main lock body and the conjoined lockset provided by the utility model comprise the shell, the world pin, the clamping assembly and the adjusting piece, wherein the world pin and the clamping assembly are movably arranged on the shell, the moving directions of the world pin and the clamping assembly are different, the adjusting piece is arranged on one of the shell and the clamping assembly and is movably connected with the other of the shell and the clamping assembly, the clamping assembly is driven by the adjusting piece to prop against the world pin, the world pin can be fixed on the shell, the world pin of the main lock body can be just connected with the auxiliary lock body, the installation difficulty of the auxiliary lock body is reduced, in addition, the lock body provided by the utility model can be loosened or locked by the adjusting piece, then the extension length of the world pin is adjusted, the world pin is not required to be driven by other structures such as a lock cylinder, the structure inside the main lock body is simplified, the world pin can be easily detached, the application range of the lock body with the world pin is enlarged, and the user experience is greatly improved.

These and other aspects of the utility model will be more readily apparent from the following description of the embodiments.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a master lock body according to the present utility model under a view angle.

Fig. 2 is a schematic view of the structure of the main lock body (excluding the top plate) shown in fig. 1.

Fig. 3 is a partially disassembled schematic illustration of the master lock body shown in fig. 2.

Fig. 4 is a top view of the master lock body shown in fig. 2.

Fig. 5 is a cross-sectional view of fig. 4 taken along the direction A-A.

Fig. 6 is a partial enlarged view of fig. 5 at B.

Fig. 7 is a schematic view of the master lock body of fig. 1 in another view.

Fig. 8 is a schematic structural diagram of the conjoined lock provided by the present utility model.

Detailed Description

In order to facilitate an understanding of the embodiments of the present utility model, the embodiments of the present utility model will be described more fully below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of the utility model. This utility model 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 utility model belongs. The terminology used herein in the examples of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

The inventor of the present utility model has found that, for the top and bottom pins of the main lock body that position only the sub lock body, the extension length of the top and bottom pins of the existing main lock body remains fixed during the installation of the sub lock body, however, because the top and bottom pin travel standards of the main lock body of different manufacturers are not uniform, that is, the top and bottom pins have lengths, the problems of no installation or high installation difficulty occur during the installation of the upper and lower sub lock bodies and the connecting rod. In addition, the existing top and bottom pins of the main lock body have the problems of difficult disassembly and assembly, when the existing top and bottom pins are applied to wooden doors and the like without top and bottom pins, the top and bottom pins are usually required to be cut, the operation difficulty is high, the time consumption is high, the application range of the main lock body is directly limited, and the user experience is poor.

In order to solve at least part of the problems, the applicant provides a main lock body and a conjoined lock, wherein a clamping assembly is driven by an adjusting piece to prop against a world pin, so that the world pin can be fixed on a shell, the world pin of the main lock body can be just connected with an auxiliary lock body, and the installation difficulty of the auxiliary lock body is reduced. The main lock body and the conjoined lock provided by the utility model are described in detail below with reference to the detailed description and the accompanying drawings.

Referring to fig. 1 to 3, the present utility model provides a main lock body 10, which includes a housing 11, a top-bottom pin 13, a clamping assembly 15 and an adjusting member 17, wherein the top-bottom pin 13 is movably disposed on the housing 11 and can be fixedly connected with the auxiliary main lock body 10, and the top-bottom pin 13 can move along a first direction D1 and can extend or retract relative to the housing 11; the engagement assembly 15 is movably arranged on the shell 11 and can move along a second direction D2 so as to be abutted against the top and bottom pins 13, and the first direction D1 is different from the second direction D2; the adjusting piece 17 is disposed on one of the housing 11 and the engaging component 15, and is movably connected with the other of the housing 11 and the engaging component 15, so as to drive the engaging component 15 to move along the second direction D2.

In the present embodiment, the first direction D1 is perpendicular to the second direction D2. In other embodiments, the first direction D1 and the second direction D2 may also be non-perpendicular. For convenience of description, the first direction D1 is defined as a length direction of the housing 11; the second direction D2 is defined as the width direction of the housing 11.

The housing 11 has a substantially hollow rectangular parallelepiped structure. The housing 11 includes a bottom plate 112 and a side plate 114 connected to each other, wherein the bottom plate 112 is a substantially rectangular plate structure, the side plate 114 includes four plate structures, and the four plate structures protrude from edge portions of the bottom plate 112 and are connected end to form a receiving groove (not shown) for receiving a lock cylinder, a lock tongue, and other connection structures and transmission structures. The housing 11 also includes a top plate 116, the top plate 116 being opposite the bottom plate 112 and connected to the side plates 114. The top plate 116 has a structure substantially similar to that of the bottom plate 112, that is, the top plate 116 has a substantially rectangular plate-like structure, and the top plate 116 is connected to the side plates 114 and covers the receiving grooves to form an inner cavity (not shown) in the housing 11 for protecting a key cylinder or the like provided in the inner cavity.

With continued reference to fig. 2 and 3, the bottom plate 112 includes an inner surface 1121 and an outer surface 1123 (fig. 7) opposite to each other, wherein the inner surface 1121 is a bottom surface of the receiving groove, and the outer surface 1123 is a surface of the bottom plate 112 exposed to the outside. The bottom plate 112 is further provided with a guide hole 1125 penetrating the inner surface 1121 and the outer surface 1123, the guide hole 1125 being capable of being engaged with the engagement assembly 15, the engagement assembly 15 being partially disposed through the guide hole 1125 so as to move along the guide hole 1125. In the present embodiment, the guide hole 1125 is a substantially square hole. In other embodiments, the guide hole 1125 may be a circular hole, an oval hole, or any other shape, as long as it can be engaged with the engagement member 15. In the present embodiment, the number of the guide holes 1125 is two, and the two guide holes 1125 are spaced apart. In other embodiments, the number of the guide holes 1125 may be one, three or more, and may be specifically set according to actual situations.

The base plate 112 is also provided with mounting holes 1127, the mounting holes 1127 penetrating the inner surface 1121 and the outer surface 1123. The mounting hole 1127 is located between the two guide holes 1125, and the mounting hole 1127 may be used for the penetration of the adjustment member 17, i.e., the adjustment member 17 may be mounted to the bottom plate 112 of the housing 11 through the mounting hole 1127.

The top and bottom pins 13 are movably disposed on the inner surface 1121 and pass through the side plate 114. In one embodiment, one of the top and bottom pins 13 and the housing 11 is provided with a guide groove 1341, the other is provided with a guide 118, the guide groove 1341 extends along the first direction D1, and the guide 118 is provided through the guide groove 1341, so that the top and bottom pin 13 can move along the first direction D1, and the extension length of the top and bottom pin 13 relative to the housing 11 can be adjusted. In the present embodiment, the top and bottom pins 13 are provided with the guide grooves 1341, the housing 11 is provided with the guide 118, and the guide 118 may be fixedly provided to the housing 11, for example, the guide 118 is accommodated in the mounting hole 1127 and is engaged with the wall of the mounting hole 1127 by interference fit or adhesion. In other embodiments, the top and bottom pins 13 may be provided with guides 118, and the housing 11 may be provided with guide grooves 1341.

Referring to fig. 4 and 5, the top and bottom pin 13 includes opposite connecting ends 132 and free ends 134, the connecting ends 132 being adapted for driving engagement with the secondary lock body to secure the secondary lock body for installation of the secondary lock body. The free end 134 is provided with a guide groove 1341, and the guide groove 1341 penetrates through the end face of the free end 134, so that when a user adjusts the adjusting piece 17 to separate the clamping assembly 15 from the world pin 13, the world pin 13 can be detached from the shell 11 when the world pin 13 is pulled outwards, and parts such as a positioning pin and the like do not need to be detached, and therefore, the user can easily detach the world pin 13 without the world pin 13, the application range of the lock body with the world pin 13 is enlarged, and the user experience is greatly improved.

In the present embodiment, the free end 134 of the top and bottom pin 13 is spaced from the lock cylinder (not shown) of the lock body, i.e., there is no transmission relationship between the free end 134 of the top and bottom pin 13 and the lock cylinder, so that it is not necessary to rotate the lock cylinder to extend or retract the top and bottom pin 13 with respect to the housing 11, greatly simplifying the structure inside the main lock body 10 and reducing the manufacturing cost of the main lock body 10.

Referring to fig. 3, the guide member 118 is provided with a through hole 1181, and an axis of the through hole 1181 extends along the second direction D2 for being matched with the adjusting member 17 so that the adjusting member 17 can move along the second direction D2. In this embodiment, the through hole 1181 is a substantially circular hole, and in other embodiments, the through hole 1181 may be elliptical, square or other shapes, which may be specifically set according to practical situations, so long as the adjusting member 17 can move along the second direction D2. In this embodiment, the guide 118 is a guide pin.

The engagement assembly 15 is movably disposed on the housing 11 and is movable along the second direction D2 to abut against the top and bottom pins 13. The clamping assembly 15 is arranged in the guide hole 1125 in a penetrating manner and can protrude out of the outer surface 1123, so that the guide hole 1125 can guide the clamping assembly 15 to move along the second direction D2, and the clamping assembly 15 cannot be skewed or offset in the moving process along the second direction D2, so that the reliability of the operation of the main lock body 10 is improved.

In this embodiment, the locking assembly 15 includes a fixing base 152 and a pin locking member 154, the pin locking member 154 can be abutted against the top and bottom pin 13, the fixing base 152 is connected to the pin locking member 154, the fixing base 152 is movably connected to the adjusting member 17, for example, the fixing base 152 can be in threaded connection with the adjusting member 17, specifically, the fixing base 152 can be provided with internal threads, and the adjusting member 17 can be provided with external threads.

Referring to fig. 3 and 6, the pin engaging member 154 includes a main body portion 1541, a first engaging portion 1543 and a second engaging portion 1545, the first engaging portion 1543 and the second engaging portion 1545 are connected to the main body portion 1541, the holder 152 is connected to the main body portion 1541, and the first engaging portion 1543 and the second engaging portion 1545 are provided on both sides of the holder 152 and can abut against the top and bottom pin 13, so that when the pin engaging member 154 is adjusted by the adjusting member 17, the movement of the first engaging portion 1543 and the second engaging portion 1545 is substantially synchronized, and the pin engaging member 154 does not deflect. In the present embodiment, the distance between the first engaging portion 1543 and the second engaging portion 1545 is gradually increased along the second direction D2, so that when the pin engaging member 154 moves along the second direction D2, both the first engaging portion 1543 and the second engaging portion 1545 will abut against the top and bottom pin 13, thereby restricting the movement of the top and bottom pin 13 relative to the housing 11, and realizing the locking of the top and bottom pin 13. It will be appreciated that when the pin engaging member 154 moves in the opposite direction of the second direction D2, the first engaging portion 1543 and the second engaging portion 1545 are both separated from the top-bottom pin 13, so that the top-bottom pin 13 can freely move relative to the housing 11, and the protruding length of the top-bottom pin 13 relative to the housing 11 can be adjusted by pulling the top-bottom pin 13, so that the top-bottom pin 13 can be fixedly connected with the auxiliary lock body, thereby realizing the installation of the auxiliary lock body.

Referring to fig. 2, 3 and 7, the adjusting member 17 is disposed on one of the housing 11 and the locking assembly 15 and is movably connected with the other of the housing 11 and the locking assembly 15 to drive the locking assembly 15 to move along the second direction D2, so that the locking assembly 15 can fix the top and bottom pins 13 on the housing 11, ensuring that the top and bottom pins 13 of the main lock body 10 can just be connected with the auxiliary lock body, reducing the installation difficulty of the auxiliary lock body.

The adjusting piece 17 is arranged in the mounting hole 1127 in a penetrating manner and exposed on the outer surface 1123, so that a user can adjust the abutting or separating of the clamping assembly 15 and the world pin 13 through the exposed adjusting piece 17 without disassembling the shell 11, the convenience of adjustment is greatly improved, and the user experience is improved.

In this embodiment, the adjusting member 17 is disposed through the through hole 1181, and the adjusting member 17 is further in threaded connection with the engaging component 15, so that the guiding member 118 has a guiding function, and has a function of positioning the adjusting member 17, thereby avoiding the structure of additionally providing the positioning adjusting member 17, and further simplifying the structure of the main lock body 10. Since the guide member 118 is fixed to the housing 11, the adjusting member 17 is rotatably disposed on the housing 11, and the engaging member 15 can be driven to move along the second direction D2 or the opposite direction of the second direction D2 by rotating the adjusting member 17. In this embodiment, the adjusting member 17 is a set screw.

Referring to fig. 2 and 6, in the present embodiment, the main lock body 10 further includes an elastic member 19, where the elastic member 19 is connected between the engaging component 15 and the housing 11, for example, the elastic member 19 is connected between the main body 1541 and the bottom plate 112. The elastic member 19 is adapted to provide an elastic force for separating the engaging member 15 from the top and bottom pins 13, and in this embodiment, the elastic member 19 is a compression spring. In other embodiments, the spring 19 may also be a tension spring when the spring 19 is connected between the top plate 116 and the body portion 1541. When the locking adjusting piece 17 is locked, the clamping assembly 15 moves along the second direction D2 under the action of the adjusting piece 17, the clamping assembly 15 is propped against the top-bottom pin 13, the top-bottom pin 13 is fixed relative to the length of the shell 11, and the elastic piece 19 is compressed and deformed along the thickness direction of the shell 11 and generates elastic force; when the adjusting member 17 is released, the engaging member 15 moves in the opposite direction of the second direction D2 under the action of the elastic force, so that the engaging member 15 is separated from the top-bottom pin 13, thereby facilitating adjustment of the protruding length of the top-bottom pin 13 with respect to the housing 11.

In summary, the main lock body 10 provided by the utility model comprises a shell 11, a top and bottom pin 13, a clamping assembly 15 and an adjusting piece 17, wherein the top and bottom pin 13 and the clamping assembly 15 are movably arranged on the shell 11, the moving directions of the top and bottom pin 13 and the clamping assembly 15 are different, the adjusting piece 17 is arranged on one of the shell 11 and the clamping assembly 15 and is movably connected with the other of the shell 11 and the clamping assembly 15, the clamping assembly 15 is driven by the adjusting piece 17 to abut against the top and bottom pin 13, the top and bottom pin 13 can be fixed on the shell 11, the top and bottom pin 13 of the main lock body 10 can be just connected with the auxiliary lock body, the installation difficulty of the auxiliary lock body is reduced, in addition, the lock body provided by the utility model can be loosened or locked by the adjusting piece 17, then the extending length of the top and bottom pin 13 is adjusted, the internal structure of the main lock body 10 is not required to be driven by other structures such as a lock cylinder, the internal structure of the main lock body 10 is simplified, the top and bottom pin 13 can be easily removed without the need of the top and bottom pin 13, the application range of the lock body is greatly widened, and the user experiences are greatly improved.

Referring to fig. 8, the present utility model further provides a one-piece lock 1, where the one-piece lock 1 includes a secondary lock body 20, a connecting rod 30, and the primary lock body 10 according to any of the above embodiments, the connecting rod 30 is connected between the top and bottom pins 13 of the primary lock body 10 and the secondary lock body 20, for example, the connecting rod 30 is fixedly connected between the top and bottom pins 13 and the secondary lock body 20, so as to fix the secondary lock body 20, thereby implementing installation of the secondary lock body 20.

In summary, the integrated lock 1 provided by the present utility model includes the main lock body 10 in any of the above embodiments, so the integrated lock 1 provided by the present utility model includes all the advantages of the main lock body 10, and is not repeated herein.

In the present utility model, the term "assembled" and the like should be construed broadly unless explicitly stated or limited otherwise. For example, the connection can be fixed connection, detachable connection or integral connection; may be a mechanical connection; the connection may be direct, indirect, or internal, or may be surface contact only, or may be surface contact via an intermediate medium. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for understanding as a specific or particular structure. The description of the term "some embodiments" means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In the present utility model, the schematic representations of the above terms are not necessarily for the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples of the present utility model and features of various embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The foregoing examples illustrate only a few embodiments of the utility model and are described in detail herein without thereby limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. A master lock body, comprising:

a housing;

the top-bottom pin is movably arranged on the shell and can be fixedly connected with the auxiliary main lock body, and the top-bottom pin can move along a first direction and can extend or retract relative to the shell;

the clamping assembly is movably arranged on the shell and can move along a second direction so as to be propped against the top-bottom pin, and the first direction is different from the second direction; a kind of electronic device with high-pressure air-conditioning system

The adjusting piece is arranged on one of the shell and the clamping assembly and is movably connected with the other of the shell and the clamping assembly so as to drive the clamping assembly to move along the second direction.

2. The master lock of claim 1, wherein the locking assembly comprises a fixed seat and a pin locking member, the pin locking member is capable of abutting against the top and bottom pins, the fixed seat is connected to the pin locking member, and the fixed seat is movably connected with the adjusting member.

3. The master lock of claim 2, wherein the pin engaging member includes a main body portion, a first engaging portion and a second engaging portion, the first engaging portion and the second engaging portion are both connected to the main body portion, the fixing base is connected to the main body portion, the first engaging portion and the second engaging portion are provided on both sides of the fixing base and can abut against the top and bottom pin, and a distance between the first engaging portion and the second engaging portion is gradually increased along the second direction.

4. The master lock of claim 1, wherein the housing comprises a bottom plate and a side plate connected to each other, the bottom plate comprises an inner surface and an outer surface opposite to each other, the top and bottom pins are movably disposed on the inner surface and pass through the side plate, the bottom plate is further provided with a guide hole passing through the inner surface and the outer surface, and the engagement assembly passes through the guide hole and can protrude out of the outer surface.

5. The master lock of claim 4, wherein the base plate further has a mounting hole, and the adjustment member is disposed through the mounting hole and exposed at the outer surface.

6. The primary lock of claim 1, further comprising an elastic member coupled between the snap assembly and the housing, the elastic member adapted to provide an elastic force separating the snap assembly from the top and bottom pins.

7. The master lock of claim 1, wherein one of the top and bottom pins and the housing is provided with a guide slot and the other is provided with a guide member, the guide slot extending in the first direction, the guide member passing through the guide slot.

8. The primary lock of claim 7, wherein the top and bottom pins include opposed connection ends and free ends, the connection ends being adapted for driving connection with the secondary lock, the guide member being fixedly disposed in the housing, the guide slot being disposed in the free end, and the guide slot extending through an end face of the free end.

9. The master lock of claim 8, wherein the guide member is provided with a through hole, an axis of the through hole extends in the second direction, the adjusting member is disposed through the through hole, and the adjusting member is in threaded connection with the engaging member.

10. A one-piece lock, comprising a secondary main lock body, a connecting rod and a main lock body as claimed in any one of claims 1 to 9, wherein the connecting rod is connected between a top-bottom pin of the main lock body and the secondary main lock body.