CN116006030A - Lock body and conjoined lock with top and bottom pins - Google Patents

Abstract

The invention provides a lock body with a top-bottom pin, which comprises a shell, a connecting pin and a pin limiting piece, wherein the connecting pin is detachably connected with the shell and selectively extends or retracts relative to the shell, and the connecting pin can be fixedly connected with a secondary lock; the pin limiting piece is movably arranged on the shell and is positioned on the moving path of the connecting pin so as to prop against the connecting pin when the connecting pin stretches out or retracts relative to the shell. The connecting pin of the lock body with the top and bottom pins is detachably connected to the shell, the pin limiting piece is positioned on the moving path of the connecting pin and is propped against the connecting pin when the connecting pin stretches out or retracts relative to the shell, and the arrangement is such that a user can adjust the stretching length of the connecting pin relative to the shell by adjusting the pin limiting piece according to the difference of the distance between the auxiliary lock and the lock body, so that the connecting pin of the lock body can be just connected with the auxiliary lock, the installation difficulty of the auxiliary lock is reduced, and the structure inside the lock body is simplified. The invention further provides a conjoined lock.

Description

Lock body and conjoined lock with top and bottom pins

Technical Field

The invention relates to the technical field of locks, in particular to a lock body with a top-bottom pin and a conjoined lock.

Background

The top and bottom pins of the main lock body are used for being connected with top and bottom locks (auxiliary locks), and the top and bottom locks at the upper end and the lower end can be driven by the top and bottom pins to pop up the lock tongue simultaneously to fix the door body, or the top and bottom locks are driven to retract the lock tongue simultaneously, so that the door can be opened conveniently.

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

Disclosure of Invention

The embodiment of the invention aims to provide a lock body and a conjoined lock with a top-bottom pin, wherein the lock body and the conjoined lock can adjust the extension length of a connecting pin relative to a shell through adjusting a pin limiting part according to the difference of the distance between an auxiliary lock and the lock body, so that the connecting pin of the lock body can be just connected with the auxiliary lock, the installation difficulty of the auxiliary lock is reduced, the connecting pin can be easily detached under the condition that the connecting pin is not needed, and the application range of the lock body is enlarged. The embodiment of the invention realizes the aim through the following technical scheme.

In a first aspect, the present invention provides a lock body having a top and bottom pin, comprising a housing, a connecting pin detachably connected to the housing and selectively extendable or retractable with respect to the housing, and a pin stopper, the connecting pin being capable of locking connection with a secondary lock; the pin limiting piece is movably arranged on the shell, and the pin limiting piece is positioned on the moving path of the connecting pin so as to prop against the connecting pin when the connecting pin stretches out or retracts relative to the shell.

In one embodiment, one of the shell and the connecting pin is provided with a limit post, the other is provided with a limit groove, the extending direction of the limit groove is consistent with the moving direction of the connecting pin, and the limit post penetrates through the limit groove.

In one embodiment, the connecting pin comprises a connecting end and a free end which are opposite, the connecting end can be connected with the auxiliary lock, the limiting groove is arranged at the free end, and the limiting groove penetrates through the end face of the free end.

In one embodiment, the pin limiter includes a hinge portion, a main body portion, and an abutment portion, the hinge portion and the abutment portion are connected to opposite ends of the main body portion, the hinge portion is hinged to the housing, the abutment portion is capable of abutting against the connecting pin, the lock body further includes an elastic restoring member, the elastic restoring member is disposed in the housing, and is capable of providing a force with which the abutment portion abuts against the connecting pin.

In one embodiment, the pin limiting member further comprises an extension portion, the extension portion is connected to the main body portion, the lock body further comprises a positioning member, the positioning member is fixedly connected to the housing, the elastic reset member comprises a torsion spring body, a first torsion arm and a second torsion arm, the first torsion arm and the second torsion arm respectively extend from the torsion spring body along different directions, the torsion spring body is sleeved on the hinge portion, the first torsion arm is abutted against the positioning member, and the second torsion arm is abutted against the extension portion.

In one embodiment, the extension portion is disposed between the abutment portion and the hinge portion, the extension portion and the abutment portion are disposed on opposite sides of the connecting pin, and the extension portion and the abutment portion are both capable of abutting against the connecting pin.

In one embodiment, the pin limiter is rotatably connected to the housing, the housing is provided with an arc track groove, the pin limiter comprises an abutting portion, the abutting portion penetrates through the arc track groove, and the abutting portion protrudes out of the surface of the housing facing away from the connecting pin.

In one embodiment, the shell comprises a bottom plate and a side plate which are connected, the bottom plate is provided with a through groove, the side plate is provided with a clearance groove, the clearance groove is communicated with the through groove, the connecting pin penetrates through the clearance groove, and the lock body further comprises a fixing piece which is connected with the connecting pin and penetrates through the through groove.

In one embodiment, the housing further includes a top plate opposite the bottom plate and connected to the side plate, and the pin stopper abuts between the top plate and the bottom plate.

In a second aspect, the present invention further provides a conjoined lock, the conjoined lock comprising a secondary lock, a connecting rod and a lock body as described in any one of the above, wherein the connecting rod is connected between the lock body and the secondary lock.

Compared with the prior art, the lock body with the top and bottom pins and the conjoined lock provided by the invention have the advantages that the lock body comprises the shell, the connecting pins and the pin limiting parts, the connecting pins are detachably connected to the shell, the pin limiting parts are positioned on the moving paths of the connecting pins and are propped against the connecting pins when the connecting pins extend or retract relative to the shell, so that a user can adjust the extending length of the connecting pins relative to the shell according to different distances of the subsidiary lock relative to the lock body by adjusting the pin limiting parts, the connecting pins of the lock body can be just connected with the subsidiary lock, the installation difficulty of the subsidiary lock is reduced, in addition, the lock body provided by the invention does not need to drive the connecting pins to move through other structures such as lock cylinders, the structure in the lock body is simplified, the connecting pins can be easily detached under the condition that the connecting pins are not needed, the application range of the lock body with the top and bottom pins is enlarged, and the user experience is greatly improved.

These and other aspects of the invention 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 application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, 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 lock body with a top-bottom pin according to the present invention in one view.

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

Fig. 3 is a partially disassembled schematic view of the lock body with the top and bottom pins shown in fig. 2.

Fig. 4 is a schematic view of the lock body with the top and bottom pins of fig. 1 in another view.

Fig. 5 is a schematic view of the pin limiter of the lock body with the top and bottom pins shown in fig. 1.

Fig. 6 is a schematic structural view of the conjoined lock provided by the present invention.

Detailed Description

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

The inventor of the application finds that in the process of installing the auxiliary lock, the extension length of the top and bottom pins of the existing main lock body is kept fixed, so that the lock tongue of the main lock can extend or retract synchronously with the lock tongue of the auxiliary lock, but because the top and bottom pin travel standards of the main lock bodies of different manufacturers are not uniform, namely, the top and bottom pins are long or short, the problems of no installation or high installation difficulty and the like can occur when the upper and lower auxiliary locks and the connecting rod are installed. In addition, the existing world round pin of the main lock with world round pin has the difficult scheduling problem of dismouting, when not needing world round pin with its application in timber etc. under, usually need cut world round pin, the operation degree of difficulty is big and consuming time is more, this also has directly restricted the application scope of the lock body with world round pin, user experience is not good.

In order to improve at least part of the problems, the applicant proposes a lock body and a conjoined lock with a top and bottom pin, which are detachably connected to a shell through a connecting pin, and a pin limiting part is positioned on a moving path of the connecting pin, so as to be propped against the connecting pin when the connecting pin stretches out or retracts relative to the shell, so that a user can adjust the stretching length of the connecting pin relative to the shell according to different distances of the subsidiary lock relative to the lock body through adjusting the pin limiting part, the connecting pin of the lock body can be just connected with the subsidiary lock, the installation difficulty of the subsidiary lock is reduced, in addition, the lock body provided by the application does not need to drive the connecting pin to move through other structures such as a lock cylinder, the structure inside the lock body is simplified, and the connecting pin can be easily detached under the condition that the connecting pin is not needed, the application range of the lock body with the top and bottom pin is enlarged, and the user experience is greatly improved. The lock body and the conjoined lock with the world pin provided in the present application are described in detail below with reference to the detailed description and the accompanying drawings.

Referring to fig. 1, the present invention provides a lock body 10 having a top and bottom pin, comprising a housing 11, a connecting pin 13 and a pin stopper 15, wherein the connecting pin 13 is detachably connected to the housing 11 and selectively extends or retracts with respect to the housing 11, and the connecting pin 13 can be fixedly connected with a sub-lock; the pin stopper 15 is movably provided to the housing 11, and the pin stopper 15 is located in a moving path of the connection pin 13 to abut against the connection pin 13 when the connection pin 13 is extended or retracted with respect to the housing 11.

Referring to fig. 2 and 3, in one embodiment, one of the housing 11 and the connecting pin 13 is provided with a limiting post 112, and the other is provided with a limiting groove 1342, wherein an extending direction of the limiting groove 1342 is consistent with a moving direction of the connecting pin 13, and the limiting post 112 is penetrated through the limiting groove 1342, so that the connecting pin 13 can only move along the extending direction of the limiting groove 1342. In the present embodiment, the limit groove 1342 extends in the length direction of the housing 11. In other embodiments, the limit groove 1342 may also extend in the width direction of the housing 11.

In this embodiment, the housing 11 is provided with a limiting post 112, specifically, the limiting post 112 may be fixedly disposed through the housing 11, and the connecting pin 13 is provided with a limiting groove 1342. It should be understood that in other embodiments, the housing 11 may be provided with a limit groove 1342, and the connecting pin 13 may be provided with a limit post 112, so that the connecting pin 13 may move along the extending direction of the limit groove 1342, and may be specifically set according to practical situations.

The housing 11 includes a bottom plate 114 and a side plate 116 connected to each other, wherein the bottom plate 114 is a substantially rectangular plate structure, the side plate 116 includes four plate structures, and the four plate structures all protrude from an edge portion of the bottom plate 114 and are connected end to form a receiving slot for receiving a lock cylinder, a lock tongue, other connection structures and transmission structures, and the limit post 112 may be disposed on the bottom plate 114. The housing 11 also includes a top plate 118, the top plate 118 being opposite the bottom plate 114 and connected to the side plates 116. The top plate 118 has a structure substantially similar to that of the bottom plate 114, that is, the top plate 118 has a substantially rectangular plate-like structure, and the top plate 118 is connected to the side plate 116 and covers the receiving groove to form an inner cavity in the housing 11 for protecting a key cylinder or the like provided in the inner cavity.

Referring to fig. 3 and 4, the bottom plate 114 is provided with through slots 1141, the through slots 1141 penetrate through opposite surfaces of the bottom plate 114 along a thickness direction of the bottom plate 114, and the through slots 1141 can be used to limit a moving direction of the connecting pins 13. In the present embodiment, the through groove 1141 is substantially linear, and the through groove 1141 extends along the longitudinal direction of the housing 11, and in other embodiments, the through groove 1141 may have an elliptical shape, an oblong shape, or the like, and may be specifically set according to practical situations. The side plate 116 is provided with a clearance groove 1162, the clearance groove 1162 is communicated with the through groove 1141, and the clearance groove 1162 is used for avoiding the connecting pin 13, so that the connecting pin 13 can extend or retract relative to the housing 11 through the clearance groove 1162. In this embodiment, the avoidance groove is further disposed on the bottom plate 114, that is, the avoidance groove includes two communicating portions, one of which is disposed on the side plate 116, and the other of which is disposed on the bottom plate 114, so that the weight of the housing 11 can be reduced, and the weight of the lock body 10 can be reduced.

The housing 11 is provided with an arc track groove 1143, and the arc track groove 1143 may cooperate with the pin limiter 15 to define a moving path of the pin limiter 15, so that the pin limiter 15 can abut against the connecting pin 13 when moving along the arc track groove 1143 to fix the connecting pin 13, that is, the extending length of the connecting pin 13 relative to the housing 11 is fixed, and the pin limiter 15 can be separated from the connecting pin 13 when moving along the arc track groove 1143, so that a user can adjust the extending length of the connecting pin 13 relative to the housing 11 according to actual situations. In the present embodiment, the arc track groove 1143 is provided at one side of the connection pin 13. In other embodiments, the projection of the connecting pin 13 on the housing 11 may also pass through the arc track groove 1143, that is, the arc track groove 1143 may be longer, so long as the limiting member can abut against the connecting pin 13 when moving along the arc track groove 1143.

The connecting pin 13 is detachably connected to the housing 11 and selectively extends or retracts with respect to the housing 11 to ensure connection of the connecting pin 13 and the auxiliary lock in the case of non-uniform travel standards of the pins, thereby solving the problems of non-installation or high installation difficulty and the like when installing the upper and lower auxiliary locks and the connecting rod. The connecting pin 13 can be connected to the secondary lock, for example, the connecting pin 13 can be connected to the secondary lock by a connecting rod, i.e. the connecting rod is fixedly connected between the connecting pin 13 and the secondary lock, wherein the fixing manner can be screw fixing connection, welding or other fixing manners.

The connecting pin 13 is provided through the clearance groove 1162 and can be extended or retracted with respect to the side plate 116 of the housing 11. The connecting pin 13 includes opposed connecting ends 132 and free ends 134, the connecting ends 132 being capable of connecting with a secondary lock to secure the secondary lock to effect installation of the secondary lock. The free end 134 is provided with a limit groove 1342, and the limit groove 1342 penetrates through the end face of the free end 134, so that when a user separates from the connecting pin 13 through the adjusting pin limiting piece 15, the connecting pin 13 can be detached from the shell 11 when the user pulls the connecting pin 13 outwards, and parts such as a locating pin and the like do not need to be detached, so that the user can easily detach the connecting pin 13 without the connecting pin 13, the application range of the lock body 10 with the top and bottom pins is enlarged, and the user experience is greatly improved.

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

The pin limiting piece 15 is movably arranged on the shell 11, the pin limiting piece 15 is located on the moving path of the connecting pin 13, so that the connecting pin 13 is propped against the connecting pin 13 when the connecting pin 13 stretches out or retracts relative to the shell 11, a user can adjust the stretching length of the connecting pin 13 relative to the shell 11 according to the difference of the distance between the auxiliary lock and the lock body 10 through adjusting the pin limiting piece 15, the connecting pin 13 of the lock body 10 can be just connected with the auxiliary lock, the installation difficulty of the auxiliary lock is reduced, in addition, the lock body 10 provided by the application does not need to drive the connecting pin 13 to move through other structures such as lock cylinders, and the structure inside the lock body 10 is simplified. The pin stopper 15 is located in a moving path of the connection pin 13 such that the pin stopper 15 can restrict movement of the connection pin 13, and when the pin stopper 15 moves away from the connection pin 13, the connection pin 13 can freely move relative to the housing 11; the pin stopper 15 can restrict movement of the connection pin 13 relative to the housing 11 when the pin stopper 15 moves close to the connection pin 13.

In this embodiment, the pin limiter 15 is rotatably connected to the housing 11, and the pin limiter 15 abuts against the connecting pin 13 during rotation to fix the connecting pin 13 to the housing 11, so that the protruding length of the connecting pin 13 is fixed. Specifically, the housing 11 may be further provided with a hinge hole 1145, and the pin stopper 15 is hinged to the housing 11 through the hinge hole 1145 and is movable in the extending direction of the arc track groove 1143. In other embodiments, the pin stopper 15 may be slidably disposed on the housing 11, for example, a plurality of bayonets are formed on the connecting pin 13, the plurality of bayonets are disposed at intervals along the longitudinal direction of the connecting pin 13, and the pin stopper 15 may be selectively engaged with one of the bayonets during sliding, so that the extension length of the connecting pin 13 relative to the housing 11 may be adjusted.

The pin limiting piece 15 is abutted between the top plate 118 and the bottom plate 114, so that the pin limiting piece 15 can support the top plate 118 and the bottom plate 114, strength of the shell 11 is improved, probability of deformation of the shell 11 due to extrusion action of external force is reduced, and structures such as lock cylinders arranged inside the shell 11 are protected.

Referring to fig. 3 and 5, the pin limiter 15 includes a hinge portion 151, a main body portion 153, and an abutment portion 155, wherein the hinge portion 151 and the abutment portion 155 are connected to opposite ends of the main body portion 153, the hinge portion 151 is hinged to the housing 11, for example, the hinge portion 151 is disposed through a hinge hole 1145 formed in the housing 11, and the abutment portion 155 can abut against the connection pin 13 to limit movement of the connection pin 13 along a length direction of the housing 11.

In the present embodiment, the number of the hinge portions 151 is two, and the two hinge portions 151 are connected to opposite sides of the main body portion 153 and are hinged to the top plate 118 and the bottom plate 114, respectively, so that the rotation of the pin limiter 15 is more stable, the pin limiter 15 is prevented from being separated from the housing 11 during the rotation, and the reliability of the operation of the pin limiter 15 is improved.

In one embodiment, the abutting portion 155 is arranged in the arc track groove 1143 in a penetrating manner, and the abutting portion 155 protrudes out of the surface of the shell 11 away from the connecting pin 13, so that the pin limiting member 15 can be operated outside the shell 11, and the pin limiting member 15 abuts against the connecting pin 13 or is far away from the connecting pin 13, so that a user can conveniently adjust the extending length of the connecting pin 13 relative to the shell 11 and detach the connecting pin 13 through the operation of the pin limiting member 15, and user experience is further improved. In another embodiment, the number of the abutting portions 155 may be two, wherein one abutting portion 155 protrudes from the surface of the bottom plate 114 facing away from the connecting pin 13, and the other abutting portion 155 protrudes from the surface of the top plate 118 facing away from the connecting pin 13, so that a user can conveniently adjust the protruding length of the connecting pin 13 relative to the housing 11 and detach the connecting pin 13 by operating the pin limiting member 15, regardless of whether the lock body 10 is applied to a left-door or right-door opening scene.

The pin stopper 15 further includes an extension portion 157, the extension portion 157 being connected to the main body portion 153, the extension portion 157, the abutting portion 155, and the hinge portion 151 being connected to the same side of the main body portion 153, the extension portion 157 extending from the main body portion 153 toward the housing 11. In the present embodiment, the extension portion 157 is provided between the abutting portion 155 and the hinge portion 151, the extension portion 157 and the abutting portion 155 are provided on opposite sides of the connecting pin 13, and both the extension portion 157 and the abutting portion 155 can abut against the connecting pin 13. The number of the extending portions 157 is also two, and two extending portions 157 are respectively connected to opposite sides of the main body portion 153, wherein one extending portion 157 extends from the main body portion 153 toward the bottom plate 114, and the other extending portion 157 extends from the main body portion 153 toward the top plate 118. Since the number of the extending portions 157, the abutting portions 155, and the hinge portions 151 is two, and are connected to opposite sides of the main body portion 153, the pin stopper 15 is substantially symmetrical about the central axis of the main body portion 153.

The pin stopper 15 further includes a supporting portion 159, and the supporting portion 159 extends from the main portion 153 toward the housing 11 and is configured to abut against the housing 11 to support the housing 11, thereby preventing the housing 11 from being deformed when being pressed by an external force, and protecting a key cylinder or the like mounted inside the housing 11. The support portion 159 and the extension portion 157 are located on opposite sides of the hinge portion 151. In the present embodiment, the number of the supporting portions 159 is two, one of the supporting portions 159 abuts against the bottom plate 114, and the other supporting portion 159 abuts against the top plate 118, so that the housing 11 is further prevented from being deformed when being pressed by an external force.

The lock body 10 further includes a positioning member 17, the positioning member 17 being fixedly connected to the housing 11, the positioning member 17 being adjacent to the pin limiter 15. The positioning member 17 is a positioning pin. In other embodiments, the positioning member 17 may also be configured as a positioning screw or the like.

The lock body 10 further includes an elastic restoring member 18, where the elastic restoring member 18 is disposed inside the housing 11 and is capable of providing a force that the abutting portion 155 abuts against the connecting pin 13, that is, the abutting portion 155 of the pin limiting member 15 abuts against the connecting pin 13 under the action of the elastic restoring member 18, so as to fix the connecting pin 13 to the housing 11, so that the extension length of the connecting pin 13 is fixed. In this embodiment, the elastic restoring member 18 is a torsion spring. In other embodiments, the elastic restoring member 18 may be an extension spring or a compression spring, and may be provided to provide the urging force of the abutting portion 155 against the connecting pin 13.

The elastic restoring member 18 includes a torsion spring body 182, a first torsion arm 184 and a second torsion arm 186, where the first torsion arm 184 and the second torsion arm 186 extend from the torsion spring body 182 along different directions, the torsion spring body 182 is sleeved on the hinge portion 151, the first torsion arm 184 abuts against the positioning member 17, and the second torsion arm 186 abuts against the extending portion 157. When an external force is applied to the pin limiter 15, such that the pin limiter 15 rotates in the counterclockwise direction as shown in fig. 2, the extension portion 157 presses the second torsion arm 186, such that the second torsion arm 186 rotates, and the first torsion arm 184 is kept against the positioning member 17, at this time, the elastic restoring member 18 is deformed and generates a torsion force, and when the applied external force is removed, the second torsion arm 186 of the elastic restoring member 18 presses the extension portion 157, and the torsion force generated by the elastic restoring member 18 drives the pin limiter 15 to rotate in the clockwise direction as shown in fig. 2, such that the abutment portion 155 abuts against the connecting pin 13, thereby fixing the connecting pin 13 to the housing 11.

With continued reference to fig. 4, the lock body 10 further includes a fixing member 19, where the fixing member 19 is connected to the connecting pin 13 and penetrates through the through slot 1141, and since the through slot 1141 extends along the length direction of the housing 11, the connecting pin 13 can move along the length direction of the housing 11 under the action of the fixing member 19 and the through slot 1141. In this embodiment, the fixing member 19 is a fixing pin, and may be connected to the connecting pin 13 by riveting or screwing.

In the present embodiment, the number of the connection pins 13 and the pin stoppers 15 is two, the two connection pins 13 are spaced apart in the length direction of the housing 11, and the connection ends 132 of the two connection pins 13 protrude from opposite ends of the housing 11, one of the connection ends 132 is connected to the sub-lock of the upper end, and the other connection end 132 is connected to the sub-lock of the lower end. Each pin limiter 15 is intended to cooperate with one connecting pin 13. In other embodiments, the number of connecting pins 13 and pin stoppers 15 is one.

In summary, the lock body 10 with a top-bottom pin provided by the invention comprises a shell 11, a connecting pin 13 and a pin limiting piece 15, wherein the connecting pin 13 is detachably connected to the shell 11, and the pin limiting piece 15 is positioned on a moving path of the connecting pin 13 so as to be propped against the connecting pin 13 when the connecting pin 13 stretches out or retracts relative to the shell 11, so that a user can adjust the stretching length of the connecting pin 13 relative to the shell 11 according to different distances of the auxiliary lock relative to the lock body 10 by adjusting the pin limiting piece 15, the connecting pin 13 of the lock body 10 can be just connected with the auxiliary lock, the installation difficulty of the auxiliary lock is reduced, in addition, the lock body 10 provided by the application does not need to drive the connecting pin 13 to move through other structures such as a lock cylinder, the structure in the lock body 10 is greatly simplified, and the connecting pin 13 can be easily detached under the condition that the connecting pin 13 is not needed, the application range of the lock body 10 with the top-bottom pin is enlarged, and the user experience is greatly improved.

Referring to fig. 6, the present invention further provides a combination lock 1, where the combination lock 1 includes the lock body 10 with the top and bottom pins according to any of the above embodiments, and the combination lock 1 further includes the auxiliary lock 20 and the connecting rod 30, where the connecting rod 30 is connected between the lock body 10 and the auxiliary lock 20, for example, the connecting rod 30 is fixedly connected between the connecting pin 13 and the auxiliary lock 20, so as to fix the auxiliary lock 20, thereby implementing installation of the auxiliary lock 20.

In summary, the conjoined lock 1 provided by the present invention includes the lock body 10 with the top-bottom pin in any of the above embodiments, so that the conjoined lock 1 provided by the present invention includes all the advantages of the lock body 10 with the top-bottom pin, which are not repeated here.

In the present invention, 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 invention 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 invention. In the present invention, 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 invention 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 invention and are described in detail herein without thereby limiting the scope of the invention. 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 invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims (10)

1. A lock body having a top and bottom pin, comprising:

a housing;

a connecting pin detachably connected to the housing and selectively extendable or retractable with respect to the housing, the connecting pin being capable of locking connection with a secondary lock; and

the pin limiting piece is movably arranged on the shell and is positioned on the moving path of the connecting pin so as to prop against the connecting pin when the connecting pin stretches out or retracts relative to the shell.

2. The lock body with the top and bottom pins according to claim 1, wherein one of the shell and the connecting pin is provided with a limit post, the other is provided with a limit groove, the extending direction of the limit groove is consistent with the moving direction of the connecting pin, and the limit post penetrates through the limit groove.

3. The lock body with the top and bottom pins according to claim 2, wherein the connecting pin comprises opposite connecting ends and free ends, the connecting ends can be connected with the auxiliary lock, the limit groove is arranged at the free ends, and the limit groove penetrates through the end face of the free ends.

4. The lock body with a top-bottom pin according to claim 1, wherein the pin limiting member includes a hinge portion, a main body portion, and an abutting portion, the hinge portion and the abutting portion are connected to opposite ends of the main body portion, the hinge portion is hinged to the housing, the abutting portion can abut against the connecting pin, the lock body further includes an elastic restoring member which is disposed inside the housing and can provide a force with which the abutting portion abuts against the connecting pin.

5. The lock with top and bottom pins according to claim 4, wherein the pin limiter further comprises an extension portion, the extension portion is connected to the main body portion, the lock further comprises a positioning piece, the positioning piece is fixedly connected to the housing, the elastic reset piece comprises a torsion spring body, a first torsion arm and a second torsion arm, the first torsion arm and the second torsion arm respectively extend from the torsion spring body in different directions, the torsion spring body is sleeved on the hinge portion, the first torsion arm is abutted against the positioning piece, and the second torsion arm is abutted against the extension portion.

6. The lock body with a top and bottom pin according to claim 5, wherein the extension portion is disposed between the abutment portion and the hinge portion, the extension portion and the abutment portion being disposed on opposite sides of the connecting pin, the extension portion and the abutment portion being capable of abutting against the connecting pin.

7. The lock body with a top and bottom pin according to claim 1, wherein the pin limiter is rotatably connected to the housing, the housing is provided with an arc track groove, the pin limiter comprises an abutting portion, the abutting portion penetrates through the arc track groove, and the abutting portion protrudes out of a surface of the housing facing away from the connecting pin.

8. The lock with pins according to any one of claims 1 to 7, wherein the housing comprises a bottom plate and a side plate connected to each other, the bottom plate is provided with a through slot, the side plate is provided with a clearance slot, the clearance slot is communicated with the through slot, the connecting pin is arranged in the clearance slot in a penetrating manner, and the lock further comprises a fixing member connected to the connecting pin and arranged in the through slot in a penetrating manner.

9. The lock with a top and bottom pin of claim 8, wherein the housing further comprises a top plate opposite the bottom plate and connected to the side plates, the pin limiter abutting between the top plate and the bottom plate.

10. A combination lock comprising a secondary lock, a connecting rod and a lock body according to any one of claims 1 to 9, the connecting rod being connected between a connecting pin of the lock body and the secondary lock.

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