CN214886199U - Spring bolt structure, lock body structure and door lock - Google Patents

Abstract

The application relates to a lock tongue structure, a lock body structure and a door lock, wherein the lock tongue structure comprises a fixing frame, a latch bolt assembly and a limiting part, a containing cavity is formed in the fixing frame, a through hole communicated with the containing cavity is formed in one surface of the fixing frame, and a first clamping groove communicated with the containing cavity is formed in the other surface of the fixing frame; the inclined tongue and the inclined tongue rod in the inclined tongue component are at least partially accommodated in the accommodating cavity, the connecting end of the inclined tongue is rotatably connected to the inclined tongue rod around an axis, the locking end is configured to protrude out of the accommodating cavity through the through hole in the process that the connecting end rotates around the inclined tongue rod, and a second clamping groove is formed in the connecting end corresponding to the first clamping groove; the limiting piece is configured to be capable of at least partially penetrating through the first clamping groove and being clamped with or separated from the second clamping groove. The bolt structure has the advantages of few parts, simple structure and convenience in assembly, and can quickly and firmly lock the latch bolt.

Description

Spring bolt structure, lock body structure and door lock

Technical Field

The application relates to the technical field of locks, in particular to a spring bolt structure, a lock body structure and a door lock.

Background

The latch bolt is a common structure in the lock, can independently complete the opening and closing of the door lock, and can be matched with other types of lock bolts such as square bolts and the like, so that the anti-theft performance of the lock is improved. The end of the latch bolt is usually triangular, and has two side surfaces contacting with the door frame, one side is an inclined surface and the other side is a plane, so that the latch bolt is required to be integrally retracted into the lock body when the lock is opened or closed. Due to the limitation of the size of the door body, the thickness of the existing door lock is generally not larger than 24mm, the internal space is limited, and the latch bolt cannot be directly retracted by using a large motor, so that a latch bolt structure capable of being turned is adopted, wherein the commonly used latch bolt is a scissor-type latch bolt. However, the scissor-type latch has the following defects: during use, if a user closes the door quickly or violently, the scissor-type latch tongue cannot be locked firmly, so that the door can be ejected without being locked, and the user experience is poor.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a latch bolt structure, a lock body structure and a door lock, aiming at the problem that the latch bolt cannot be locked quickly and firmly.

The embodiment of the application provides a spring bolt structure, includes: the fixing frame is internally provided with a containing cavity, one surface of the fixing frame is provided with a through hole communicated with the containing cavity, and the other surface of the fixing frame is provided with a first clamping groove communicated with the containing cavity; the oblique tongue assembly comprises an oblique tongue and an oblique tongue rod, at least parts of the oblique tongue and the oblique tongue rod are accommodated in the accommodating cavity, the oblique tongue comprises a locking end and a connecting end which are arranged oppositely, the connecting end is connected to the oblique tongue rod in a rotating mode around an axis, the locking end is configured to protrude out of the accommodating cavity through the through hole in the rotating process of the connecting end around the oblique tongue rod, and a second clamping groove is formed in the connecting end corresponding to the first clamping groove; and the limiting piece is configured to be capable of at least partially penetrating through the first clamping groove and being clamped with or separated from the second clamping groove.

In one embodiment, the latch bolt structure has a first state and a second state, in the first state, the locking end protrudes out of the accommodating cavity, the limiting member at least partially penetrates through the first clamping groove and is clamped with the second clamping groove, in the second state, the locking end is accommodated in the accommodating cavity, and the limiting member is separated from the second clamping groove.

In one embodiment, the latch bolt assembly further comprises an elastic member, one end of the elastic member abuts against the connecting end, the other end of the elastic member abuts against the inner wall of the fixing frame, and the elastic member is configured to provide elastic force for enabling the locking end to have the tendency of rotating to the outside of the fixing frame.

In one embodiment, the fixing frame comprises a frame body and an end plate, wherein one end of the frame body is open, the end plate is fixedly connected with one end of the opening in the frame body, the end plate and the frame body jointly enclose a containing cavity, a through hole is formed in the end plate, and a first clamping groove is formed in the frame body.

In one embodiment, the latch bolt assembly further comprises a shaft sleeve, the shaft sleeve and the end plate are respectively arranged at two opposite ends of the frame body, and the latch bolt rod penetrates through the frame body and is arranged in the shaft sleeve.

In one embodiment, at least one surface of the frame body facing the accommodating cavity is provided with a plurality of oil storage grooves.

The embodiment of the present application further provides a lock body structure, including: a column; and as above-mentioned spring bolt structure, the locating part rotates around an axis and connects in the stand, and the locating part is configured to can be in the joint or the separation with the second draw-in groove at the in-process of rotating around the stand.

In one embodiment, the device further comprises a shifting lever, and the shifting lever is connected with the limiting piece to drive the limiting piece to rotate around the upright post.

In one embodiment, the device further comprises a driving device, and the driving device is connected with the shifting lever to drive the shifting lever to move, so that the shifting lever drives the limiting piece to rotate around the upright post.

The embodiment of this application still provides a lock, includes: such as the lock body structure described above.

Based on spring bolt structure, lock body structure and lock of this application embodiment, through the link with the oblique tongue with oblique tongue pole rotate to be connected, the locking end of oblique tongue just can rotate freely around oblique tongue pole and rotate to protrusion outside holding the chamber or accept in holding the intracavity through the through-hole of seting up on the mount to make spring bolt structure freely switch between lock-out state and unblock state, spring bolt structure spare part is few, simple structure, the assembly of being convenient for. Meanwhile, a first clamping groove is formed in the fixing frame, a second clamping groove is formed in the connecting end of the oblique tongue corresponding to the first clamping groove, and the limiting piece can at least partially penetrate through the first clamping groove and is clamped with the second clamping groove, so that the oblique tongue and the fixing frame are fixed together, and the oblique tongue cannot freely rotate any more; therefore, when a user closes the door, the limiting piece can penetrate through the first clamping groove and be clamped with the second clamping groove, the latch bolt is locked fast and firmly, and the door can be locked firmly and cannot be ejected.

Drawings

Fig. 1 is a schematic overall structural diagram of a latch bolt structure provided in an embodiment of the present application;

fig. 2 is an exploded view of the overall structure of a latch bolt structure provided in an embodiment of the present application;

FIG. 3 is a schematic view of a connection and engagement relationship between a latch bolt and a latch bolt rod according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a latch bolt structure provided in an embodiment of the present application in a first state;

fig. 5 is a schematic structural diagram of a latch bolt structure provided in an embodiment of the present application in a second state;

figure 6 is a schematic overall structure diagram of a lock body structure according to an embodiment of the present application;

figure 7 is a schematic structural view of a lock body structure provided in an embodiment of the present application in a state;

figure 8 is a schematic structural view of a lock body structure provided in an embodiment of the present application in another state;

figure 9 is a schematic structural view of a lock body structure provided in an embodiment of the present application in yet another state;

fig. 10 is a schematic view of the overall structure of a door lock according to an embodiment of the present application.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Fig. 1 is a schematic view of an overall structure of a latch bolt structure 100 according to an embodiment of the present application, fig. 2 is an exploded view of the overall structure of the latch bolt structure 100 according to an embodiment of the present application, and fig. 3 is a schematic view of a connection and matching relationship between a latch bolt 121 and a latch bolt rod 122 according to an embodiment of the present application.

Referring to fig. 1 to fig. 3, an embodiment of the present disclosure provides a latch bolt structure 100, where the latch bolt structure 100 includes a fixing frame 110, a latch bolt assembly 120, and a limiting member 130.

The fixing frame 110 is used for accommodating, supporting and fixing various components or assemblies such as the latch bolt assembly 120 and the limiting member 130 in the latch bolt structure 100, and therefore, the shape and size of the fixing frame 110 can be flexibly set according to the structure, shape and the like of the latch bolt assembly 120 and the limiting member 130, and the like, which is not limited herein. Specifically, the fixing frame 110 has a receiving cavity 111 formed therein for receiving the latch bolt assembly 120. Furthermore, a through hole 112 communicating with the accommodating cavity 111 is formed on one surface of the fixing frame 110, and a first engaging groove 113 communicating with the accommodating cavity 111 is formed on the other surface of the fixing frame 110.

The latch bolt assembly 120 is used for cooperating with a lock hole in the door lock to lock and unlock the door lock. Specifically, the latch bolt assembly 120 includes a latch bolt 121 and a latch bolt rod 122, the latch bolt 121 includes a locking end 121A and a connecting end 121B that are disposed opposite to each other, the connecting end 121B is connected to the latch bolt rod 122 in a rotatable manner around an axis, and the locking end 121A is configured to protrude out of the accommodating cavity 111 through a through hole 112 formed in one surface of the fixing frame 110 during the rotation of the connecting end 121B around the latch bolt rod 122, so as to achieve connection and fixation with the lock hole. The latch bolt 121 and the latch bolt rod 122 are at least partially received in the receiving cavity 111, that is, the connecting end 121B of the latch bolt 121 is always received in the receiving cavity 111, and the locking end 121A of the latch bolt 121 may protrude out of the receiving cavity 111 along with the rotation of the latch bolt 121. As shown in fig. 3, a first shaft hole is formed in the latch bolt rod 122 along a direction perpendicular to the axial direction thereof, correspondingly, a second shaft hole is formed in the connecting end 121B of the latch bolt 121 along the same direction, the connecting end 121B is rotatably connected to the latch bolt rod 122 through a pin shaft, and the pin shaft sequentially penetrates through the second shaft hole and the first shaft hole, so that the latch bolt 121 can rotate around the axis direction of the pin shaft relative to the latch bolt rod 122. Meanwhile, the connecting end 121B is provided with a second card slot 1211 corresponding to the first card slot 113, that is, the first card slot 113 and the second card slot 1211 are similar in shape, and the second card slot 1211 can be rotated to a position adjacent to the first card slot 113 in the rotating process of the latch 121.

The limiting member 130 is configured to be able to at least partially pass through the first card slot 113 and to be connected to or disconnected from the second card slot 1211, a cross-sectional shape of the limiting member 130 is the same as the shape of the first card slot 113 and the second card slot 1211, and the cross-sectional size of the limiting member 130 is smaller than the cross-sectional sizes of the first card slot 113 and the second card slot 1211, so that the limiting member 130 can pass through the first card slot 113 and be connected to the second card slot 1211 to lock the latch tongue 121 quickly and firmly, or the limiting member 130 can be disconnected from the second card slot 1211 to unlock the latch tongue 121. When the limiting member 130 is engaged with the second slot 1211, only a portion of the structure of the limiting member 130 needs to enter the second slot 1211, and the limiting member 130 does not need to enter the second slot 1211 completely, so as to separate the limiting member 130 from the second slot 1211.

The bolt structure 100 of the embodiment of the application is rotationally connected with the latch bolt rod 122 through the connecting end 121B of the latch bolt 121, the locking end 121A of the latch bolt 121 can freely rotate around the latch bolt rod 122 and rotate to protrude out of the accommodating cavity 111 or be accommodated in the accommodating cavity 111 through the through hole 112 formed in the fixing frame 110, so that the bolt structure 100 can be freely switched between the locking state and the unlocking state, and the bolt structure 100 has few parts, simple structure and convenient assembly. Meanwhile, the fixed frame 110 is provided with a first slot 113, the connecting end 121B of the latch tongue 121 is provided with a second slot 1211 corresponding to the first slot 113, and the limiting member 130 can at least partially pass through the first slot 113 and is clamped with the second slot 1211, so that the latch tongue 121 and the fixed frame 110 are fixed together, and the latch tongue 121 cannot freely rotate any more; thus, when the user closes the door, the limiting member 130 can pass through the first slot 113 and engage with the second slot 1211, so as to lock the latch bolt 121 fast and firmly, and the door can be locked firmly and cannot be ejected. When the door is closed, the limiting member 130 passes through the first slot 113 and is clamped with the second slot 1211, the latch tongue 121 is locked and cannot rotate freely, so that the door closing locking function is realized, when the door needs to be opened, the limiting member 130 is separated from the second slot 1211, the latch tongue 121 is unlocked and can rotate freely again, and the door can be opened normally.

Fig. 4 is a schematic structural diagram of the latch bolt structure 100 provided in an embodiment of the present application in a first state, and fig. 5 is a schematic structural diagram of the latch bolt structure 100 provided in an embodiment of the present application in a second state.

Referring to fig. 4 to 5, in some embodiments, the latch bolt structure 100 has a first state and a second state, in the first state, the locking end 121A protrudes out of the accommodating cavity 111, the limiting member 130 at least partially passes through the first slot 113 and is clamped with the second slot 1211, at this time, the latch bolt 121 is in the locking state, and the latch bolt 121 cannot rotate freely around the latch bolt rod 122. In the second state, the locking end 121A is received in the receiving cavity 111, the limiting member 130 is separated from the second locking slot 1211, and at this time, the latch bolt 121 is in the unlocked state, and the latch bolt 121 can rotate freely around the latch bolt rod 122.

In the application process of the latch bolt structure 100, when the locking end 121A of the latch bolt 121 is accommodated in the accommodating cavity 111, the latch bolt 121 is not connected with a lock hole in the door lock, and the door can be freely opened and closed at this time; when the locking end 121A of the latch bolt 121 protrudes out of the receiving cavity 111, the latch bolt 121 can be coupled with a locking hole in the door lock, and at this time, the door is kept in an open or closed state. Therefore, in order to allow the latch bolt 121 to be rapidly ejected out of the receiving cavity 111 after the door is closed so as to be coupled with the lock hole in the door lock, in some embodiments, the latch bolt assembly 120 further includes an elastic member 123, one end of the elastic member 123 abuts against the connecting end 121B, the other end of the elastic member 123 abuts against the inner wall of the fixing frame 110, and the elastic member 123 is configured to provide an elastic force that causes the locking end 121A to have a tendency to rotate out of the fixing frame 110. In this embodiment, the elastic member 123 is a spring, and the spring is sleeved on the latch rod 122 and can elastically deform along the axial direction of the latch rod 122, so as to save the space in the accommodating cavity 111. When the locking end 121A of the latch bolt 121 is accommodated in the accommodating cavity 111 under the action of external force, the connecting end 121B of the latch bolt 121 presses the elastic member 123 to generate elastic deformation and accumulate elastic potential energy, and at this time, the door can be opened and closed freely. After the door is closed, the external force applied to the locking end 121A of the latch bolt 121 is removed, the elastic member 123 recovers elastic deformation and generates elastic force to push the connecting end 121B of the latch bolt 121 to rotate, so that the locking end 121A of the latch bolt 121 rotates to protrude out of the accommodating cavity 111, and connection and matching with a lock hole in the door lock are realized.

As described above, the fixing frame 110 is used to accommodate, support and fix various components or assemblies of the latch bolt assembly 120, the limiting member 130, and the like in the latch bolt structure 100, and therefore, the structure of the fixing frame 110 may be integrally formed, and the accommodating cavity 111 is hollowed out on the structure. In other embodiments, the fixing frame 110 may be formed by surrounding a plurality of plate bodies, that is, the fixing frame 110 includes a frame body 114 and an end plate 115, one end of the frame body 114 is open, the end plate 115 is fixedly connected to one end of the opening of the frame body 114, and the end plate 115 and the frame body 114 together surround the accommodating cavity 111. The end plate 115 is provided with a through hole 112, an end of the latch bolt 121 can protrude out of the accommodating cavity 111 from the through hole 112 on the end plate 115, the frame body 114 is provided with a first locking groove 113, and the limiting member 130 can pass through the first locking groove 113 on the frame body 114 and be locked with the second locking groove 1211.

As described above, the latch rod 122 may be at least partially received in the receiving cavity 111, and at this time, another portion of the latch rod 122 passes through the fixing frame 110 to the outside of the receiving cavity 111, in order to support and guide the portion of the structure on the latch rod 122, in some embodiments, the latch assembly 120 further includes a shaft sleeve 124, the shaft sleeve 124 and the end plate 115 are respectively disposed at two opposite ends of the frame body 114, and the latch rod 122 passes through the frame body 114 and is disposed in the shaft sleeve 124. The shaft sleeve 124 is a cylindrical mechanical part sleeved on the rotating shaft, and the latch rod 122 penetrates through the shaft sleeve 124 and can reciprocate along the shaft sleeve 124, i.e., the shaft sleeve 124 plays roles of fixing, limiting and guiding the latch rod 122. In particular, in some embodiments, the bushing 124 may be a Nylon bushing 124, Nylon (Nylon) is a common name of polyamide, and is a generic name of thermoplastic resin having a repeating amide group — [ NHCO ] in a molecular main chain, and Nylon has high wear resistance, and the Nylon bushing 124 can reduce friction force connected to the latch rod 122 of the bushing 124 and can provide noise reduction effect to the latch rod 122.

As shown in fig. 2, in some embodiments, at least one surface of the frame body 114 facing the accommodating cavity 111 is provided with a plurality of oil reservoirs 1141. The oil storage tank 1141 can store a certain amount of lubricating oil, which plays a role in reducing friction and silencing the latch bolt assembly 120, and meanwhile, because the clearance between the latch bolt assembly 120 and each plate body on the frame body 114 is relatively small, the lubricating oil stored in the oil storage tank 1141 can also prevent the excessive swing amplitude after the latch bolt is locked.

To sum up, the part of tongue structure 100 in this application is few, simple structure, the assembly of being convenient for. Meanwhile, the fixed frame 110 is provided with a first slot 113, the connecting end 121B of the latch tongue 121 is provided with a second slot 1211 corresponding to the first slot 113, and the limiting member 130 can at least partially pass through the first slot 113 and is clamped with the second slot 1211, so that the latch tongue 121 and the fixed frame 110 are fixed together, and the latch tongue 121 cannot freely rotate any more; thus, when the user closes the door, the limiting member 130 can pass through the first slot 113 and engage with the second slot 1211, so as to lock the latch bolt 121 fast and firmly, and the door can be locked firmly and cannot be ejected.

Fig. 6 is a schematic overall structural diagram of a lock body structure 10 according to an embodiment of the present application, fig. 7 is a schematic structural diagram of a lock body structure 10 according to an embodiment of the present application in one state, fig. 8 is a schematic structural diagram of a lock body structure 10 according to an embodiment of the present application in another state, and fig. 9 is a schematic structural diagram of a lock body structure 10 according to an embodiment of the present application in yet another state.

Referring to fig. 6 to 9, an embodiment of the present application further provides a lock body structure 10, where the lock body structure 10 includes a pillar 200 and the bolt structure 100 as described in any of the above embodiments. The limiting member 130 is rotatably connected to the upright 200 around an axis, and the limiting member 130 may be connected to the upright 200 through a connecting member or directly sleeved on the upright 200, such that the limiting member 130 can rotate around the upright 200, and the limiting member 130 can be engaged with or separated from the second engaging groove 1211 during the rotation around the upright 200. With the latch bolt structure 100 of the above embodiment, when a user closes the door, the limiting member 130 can rotate around the upright post 200 to pass through the first engaging groove 113 and engage with the second engaging groove 1211, so as to lock the latch bolt 121 quickly and firmly, and the door can be locked firmly and cannot be ejected. When the door needs to be opened, the limiting member 130 rotates around the upright post 200 to be separated from the second slot 1211, the latch tongue 121 is unlocked, the latch tongue 121 can rotate freely again, and normal door opening can be performed.

On the basis, in order to improve the operability and convenience of the lock structure 10 in use, in some embodiments, the lock structure 10 further includes a lever 300, and the lever 300 is connected to the limiting member 130 to drive the limiting member 130 to rotate around the upright post 200. The user can operate the lever 300 from a long distance to rotate the position-limiting member 130, as shown in fig. 7 to 8. Compared with the rotation of the limiting member 130 by direct operation, the driving lever 300 drives the limiting member 130 to rotate, thereby facilitating the remote operation. Moreover, by adjusting the distance from the end of the shift lever 300 to the upright post 200, the range of the shift lever 300 driving the limiting member 130 to rotate can be changed, and the adjustment precision of the rotation range of the limiting member 130 can be improved. Further, the lock body structure 10 further includes a driving device 400, wherein the driving device 400 is connected to the shift lever 300 to drive the shift lever 300 to move, so that the shift lever 300 drives the position-limiting member 130 to rotate around the upright post 200. The use of the drive means 400 may improve the degree of automation of the proposed structure in use.

The driving device 400 may be a motor, when the motor receives a door opening signal, the motor rotates and drives the shift lever 300 to rotate through the main gear, the shift lever 300 drives the limiting member 130 to rotate around the upright post 200, so that the limiting member 130 is separated from the second locking slot 1211, thereby enabling the latch bolt assembly 120 to reach an unlocking state, and when the door is opened, the locking end 121A of the latch bolt 121 is pushed into the accommodating cavity 111, thereby achieving the door opening. After the door is opened, the locking end 121A of the latch bolt 121 is ejected and reset under the elastic force of the elastic member 123. After a period of time, the motor rotates reversely to drive the main gear to rotate reversely and reset, the driving lever 300 drives the limiting member 130 to rotate reversely, so that the limiting member 130 rotates around the upright post 200 and is clamped into the second slot 1211, and the latch assembly 120 is locked and cannot be turned over. When the door is closed, the locking end 121A of the latch bolt 121 collides with the door frame, pushing the latch bolt 121 to rotate and retract along the latch bolt rod 122, so that the elastic member 123 is pressed, and when the locking end 121A of the latch bolt 121 aligns with the lock hole in the door lock, the elastic force of the elastic member 123 rapidly pops up the locking end 121A of the latch bolt 121, so that the locking end 121A of the latch bolt 121 is inserted into the lock hole in the door lock, thereby achieving the locking and closing action of the latch bolt assembly 120.

When the electric control is out of order, the lock can be unlocked by a mechanical key. When the mechanical key rotates, the shift lever 300 is driven to rotate, the shift lever 300 drives the limiting member 130 to rotate around the upright post 200, so that the locking end 121A of the latch bolt 121 is separated from the second slot 1211, the connecting end 121B of the latch bolt 121 can rotate around the latch bolt rod 122, the latch bolt assembly 120 is unlocked, and when the door is opened, the locking end 121A of the latch bolt 121 is pushed into the accommodating cavity 111, so that the door is opened. The latch bolt assembly 120 can be unlocked quickly and easily through a motor and a mechanical key, and the latch bolt assembly is convenient to use and high in reliability.

Fig. 10 is a schematic view of the overall structure of a door lock according to an embodiment of the present application.

As shown in fig. 10, the present application further provides a door lock, which includes the lock body structure 10 according to any one of the above embodiments. When the door lock is used, when a user closes the door, the limiting member 130 can rotate around the upright post 200 to pass through the first slot 113 and be clamped with the second slot 1211, so that the latch bolt 121 is locked fast and firmly, and the door can be locked firmly and cannot be ejected. When the door needs to be opened, the limiting member 130 rotates around the upright post 200 to be separated from the second slot 1211, the latch tongue 121 is unlocked, the latch tongue 121 can rotate freely again, and normal door opening can be performed. In some embodiments, the lock body structure 10 of the door lock may further include a dead bolt structure, which is used in cooperation with the dead bolt structure 100, so that the door lock is safer.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A deadbolt structure, comprising:

the fixing frame is internally provided with an accommodating cavity, one surface of the fixing frame is provided with a through hole communicated with the accommodating cavity, and the other surface of the fixing frame is provided with a first clamping groove communicated with the accommodating cavity;

the oblique tongue assembly comprises an oblique tongue and an oblique tongue rod, at least parts of the oblique tongue and the oblique tongue rod are accommodated in the accommodating cavity, the oblique tongue comprises a locking end and a connecting end which are arranged oppositely, the connecting end is connected to the oblique tongue rod in a rotating mode around an axis, the locking end is configured to be capable of protruding out of the accommodating cavity through the through hole in the process that the connecting end rotates around the oblique tongue rod, and a second clamping groove is formed in the connecting end corresponding to the first clamping groove; and

a limiting member configured to be capable of at least partially passing through the first card slot and being clamped or separated from the second card slot.

2. The deadbolt structure of claim 1, wherein the deadbolt structure has a first state in which the locking end protrudes out of the receiving cavity, the stop member at least partially extends through the first slot and engages the second slot, and a second state in which the locking end is received in the receiving cavity, the stop member being separate from the second slot.

3. The deadbolt structure of claim 1, wherein the latch bolt assembly further comprises an elastic member, one end of the elastic member abutting the connection end and the other end of the elastic member abutting an inner wall of the mount, the elastic member configured to provide an elastic force tending to rotate the locking end out of the mount.

4. The locking bolt structure according to claim 1, wherein the fixing frame comprises a frame body and an end plate, one end of the frame body is open, the end plate is fixedly connected with one end of the opening of the frame body, the end plate and the frame body jointly enclose the accommodating cavity, the end plate is provided with the through hole, and the frame body is provided with the first clamping groove.

5. The latch bolt structure of claim 4, wherein the latch bolt assembly further comprises a shaft sleeve, the shaft sleeve and the end plate are respectively disposed at two opposite ends of the frame body, and the latch bolt rod penetrates through the frame body and is disposed in the shaft sleeve.

6. The latch bolt structure of claim 4, wherein at least one surface of the frame body facing the receiving cavity is provided with a plurality of oil reservoirs.

7. A lock body structure, comprising:

a column; and

the deadbolt structure of any one of claims 1-6, wherein the stop is pivotally coupled to the post about an axis, and wherein the stop is configured to engage with or disengage from the second slot during pivoting about the post.

8. The lock body structure of claim 7, further comprising a lever, wherein the lever is connected to the position limiter to rotate the position limiter around the post.

9. The lock body structure of claim 8, further comprising a driving device connected to the lever for driving the lever to move, such that the lever drives the position limiter to rotate around the post.

10. A door lock, comprising: the lock body structure of any one of claims 7 to 9.

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