Lock body structure and intelligent lock

Abstract

The utility model relates to the field of intelligent locks, and discloses a lock body structure and an intelligent lock. The lock body structure comprises a support; the sleeve body is rotationally connected with the support, the sleeve body is connected with the spring bolt assembly on the support and used for driving the spring bolt assembly to act, and an internal thread is arranged on the inner wall of the sleeve body; the connecting rod extends into the sleeve body and is connected with the sleeve body, and the connecting rod is used for driving the sleeve body to rotate; the stud is arranged in the sleeve body from the end, away from the connecting rod, of the sleeve body and connected with the internal threads, and the end, facing the connecting rod, of the stud is provided with a connecting structure used for being connected with a screwing tool. The stud is placed into the sleeve body from the end deviating from the connecting rod to be connected with the internal thread of the sleeve body, and a connecting structure is arranged at the end, facing the connecting rod, of the stud, so that the stud can block the end, deviating from the connecting rod, of the sleeve body. Therefore, the problems that the connecting rod is pushed into the inner side of the door body and a tool with the same or similar section as the connecting rod is inserted into the sleeve body to drive the spring bolt assembly to act are avoided, and potential safety hazards are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of smart locks, and in particular to a lock body structure and a smart lock. Background Art

[0002] As an important part of modern home security, smart locks are becoming more and more popular because of their good security and convenience.

[0003] In the related art, the smart lock includes a housing, a connecting rod, a sleeve and a handle. The sleeve is rotatably connected to the housing, and the sleeve is connected to the lock tongue assembly in the housing to drive the lock tongue assembly to move. The handle is arranged on the inner side of the door body and connected to the connecting rod, and the connecting rod extends into the sleeve and is connected to the sleeve. In the process of opening the door from the inner side of the door body, the user operates the handle to drive the lock tongue in the lock body structure to retract through the connecting rod, thereby providing a physical unlocking method for the smart lock and improving the user's convenience of operation.

[0004] The inventor found that in the related technology, the connecting rod extends into the sleeve, and a tool can be used to push the connecting rod from the outside of the door body to the inside of the door body, and then a tool with the same or similar cross-section as the connecting rod is inserted into the sleeve to drive the lock tongue to retract, thereby opening the smart lock. This poses a hidden danger. Utility Model Content

[0005] In view of this, the utility model provides a lock body structure and a smart lock to solve the problem in the related art that after the connecting rod of the smart lock is pushed into the door body, a tool can be inserted into the sleeve to drive the lock tongue to unlock.

[0006] In a first aspect, the utility model provides a lock body structure, comprising:

[0007] Support;

[0008] A sleeve body, the sleeve body is rotatably connected to the support, the sleeve body is connected to the locking tongue assembly on the support, and is used to drive the locking tongue assembly to move, and the inner wall of the sleeve body is provided with an internal thread;

[0009] A connecting rod, the connecting rod extends into the sleeve and is connected to the sleeve, and the connecting rod is used to drive the sleeve to rotate;

[0010] A stud is inserted into the sleeve from one end of the sleeve away from the connecting rod and connected to the internal thread. An end of the stud facing the connecting rod is provided with a connecting structure for connecting to a screwing tool.

[0011] Beneficial effect: The connecting rod is inserted into the sleeve and connected to the sleeve, and the sleeve is connected to the lock tongue assembly, so that the sleeve can be driven by the connecting rod, and then the sleeve drives the lock tongue assembly to move, thereby completing the unlocking. The stud is placed into the sleeve from the end away from the connecting rod and connected to the internal thread of the sleeve, and a connecting structure is provided at the end of the stud facing the connecting rod, so that the stud can block the end of the sleeve away from the connecting rod, and the stud can only be screwed and disassembled on the inside of the door body, thereby avoiding the problem of pushing the connecting rod into the inside of the door body and inserting a tool with the same or similar cross section as the connecting rod into the sleeve to drive the lock tongue assembly to move, thereby reducing safety hazards.

[0012] In an optional embodiment, the connecting rod is configured as a polygonal column structure, the interior of the sleeve is provided with a polygonal hole for snap-fitting with the connecting rod, the internal thread is provided on the inner wall of the polygonal hole, the diameter of the inscribed circle of the polygonal hole is less than or equal to the minor diameter of the internal thread, and the diameter of the circumscribed circle of the polygonal hole is greater than the minor diameter of the internal thread.

[0013] Beneficial effects: The internal thread is directly provided on the inner wall of the polygonal hole, and the structural change of the sleeve is small, so that the improvement cost of the lock body structure is low. In addition, the internal thread is provided on the inner wall of the polygonal hole, and the stud can be installed without affecting the clamping of the connecting rod and the polygonal hole, that is, the requirement of installing the connecting rod and the stud in the sleeve at the same time is met. In addition, since the connection form of the connecting rod and the sleeve is the same as that in the related art, there is no need to change the structure of the connecting rod, so the original connecting rod can be used.

[0014] In an optional embodiment, an annular flange is provided at one end of the stud facing away from the connecting rod, and the annular flange abuts against the sleeve body.

[0015] Beneficial effect: By setting an annular flange at the end of the stud away from the connecting rod, the annular flange will not move due to the limitation of the sleeve. During the process of screwing the stud, the force exerted by the internal thread on the stud and the force exerted by the annular flange on the stud are in opposite directions. The stud can be stretched to form a certain pre-tightening force on the stud, thereby improving the anti-loosening effect of the stud and further reducing the probability of loosening the stud from the outside of the door body.

[0016] In an optional embodiment, a countersunk hole for accommodating the annular flange is provided at one end of the sleeve body facing away from the connecting rod, and the annular flange abuts against the bottom of the countersunk hole.

[0017] Beneficial effect: the annular flange can be placed inside the sleeve, the space inside the sleeve is fully utilized, and the compactness of the lock body structure is improved.

[0018] In an optional embodiment, two protrusion structures are provided at one end of the stud facing away from the connecting rod, the side of the protrusion structure facing the stud in a direction of loosening is a first side, and the side of the protrusion structure facing the stud in a direction of tightening is a second side;

[0019] Wherein, the first side of the protruding structure is provided with a limiting surface, the two limiting surfaces are symmetrical about the center, the center coincides with the axis of the stud, and the two limiting surfaces are used to be engaged with a screwing tool;

[0020] A guiding bevel is provided on the second side of the protruding structure, and the two guiding bevels are symmetrical about the center. One end of the guiding bevel is connected to the end of the protruding structure away from the stud, and the other end is inclined toward the direction close to the stud, so as to guide the screwing tool to the end of the protruding structure away from the stud.

[0021] Beneficial effect: the studs can be screwed and tightened on the outside of the door body, thereby improving the convenience of stud installation, and the studs cannot be screwed loose on the outside of the door body, thereby ensuring that the studs cannot be removed from the outside of the door body.

[0022] In an optional embodiment, both ends of the sleeve are provided with a cylindrical portion, the support is configured as a shell structure, two opposite side walls of the shell structure are provided with through holes, the cylindrical portion is rotatably connected to the through holes in a one-to-one correspondence, and the sleeve is further provided with a clamping portion clamped with the locking tongue assembly, the clamping portion is arranged between the two cylindrical portions, and the clamping portion protrudes from the outer circumferential wall of the cylindrical portion.

[0023] Beneficial effect: By making the cylindrical parts at both ends of the sleeve body rotate with the shell structure, the supporting effect of the shell structure on the sleeve body can be improved. By making the clamping part protrude from the outer circumferential wall of the cylindrical part, the clamping part can be connected with the lock tongue assembly to drive the lock tongue assembly to move, and can also axially limit the sleeve body to prevent the sleeve body from falling out of the through hole, thereby improving the stability of the lock body structure.

[0024] In an optional embodiment, the shell structure includes two covers, which are detachably connected and enclose a receiving space, at least part of the sleeve and at least part of the locking tongue assembly are arranged in the receiving space, and both of the covers are provided with the through hole.

[0025] Beneficial effects: The shell structure includes two covers, and the two covers are detachably connected, so that it is convenient to install the sleeve or the lock tongue assembly in the accommodating space, or to repair or replace the lock tongue assembly or the sleeve in the accommodating space.

[0026] In an optional implementation, fixing glue is provided between the stud and the internal thread.

[0027] Beneficial effect: It can improve the anti-loosening performance of the stud and prevent the connecting rod from driving the stud to loosen.

[0028] In an optional embodiment, the connection structure includes a slot, a cross slot or a hexagonal hole.

[0029] Beneficial effect: The connection structure facilitates the connection of the screwing tool.

[0030] In a second aspect, the utility model also provides a smart lock, comprising the lock body structure as described above.

[0031] Beneficial effect: The smart lock includes a lock body structure, and also includes all the above advantages of the lock body structure, so it will not be described in detail. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 This is a structural schematic diagram of a lock body structure in an embodiment of the utility model;

[0034] Figure 2 for Figure 1 Schematic diagrams of the lock body structure from other angles shown;

[0035] Figure 3 It is a schematic structural diagram of the connection between the stud, the sleeve and the connecting rod in the embodiment of the utility model;

[0036] Figure 4 It is a front view of the sleeve in the embodiment of the utility model;

[0037] Figure 5 for Figure 4 an axonometric view of the sleeve shown;

[0038] Figure 6 It is a structural schematic diagram of a stud in an embodiment of the utility model;

[0039] Figure 7 yes Figure 6 Other angles of the stud shown.

[0040] Description of reference numerals:

[0041] 1. Support; 101. Cover body; 2. Sleeve body; 201. Internal thread; 202. Polygonal hole; 203. Cylindrical part; 204. Clamping part; 205. Countersunk hole; 3. Connecting rod; 4. Stud; 401. Connecting structure; 5. Annular flange; 6. Raised structure; 601. Limiting surface; 602. Guide slope. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0043] The inventor found that in the related art, the connecting rod extends into the sleeve, and a tool can be used to push the connecting rod from the outside of the door body into the inside of the door body, and then a tool with the same or similar cross section as the connecting rod is inserted into the sleeve to drive the lock tongue to retract, so that the smart lock can be opened, which poses a hidden danger. Among them, the tool with a cross section similar to the connecting rod refers to a tool with a cross section smaller than the cross section of the connecting rod.

[0044] In order to solve the problem in the related art that after the connecting rod of the smart lock is pushed into the door body, a tool can be inserted into the sleeve to drive the lock tongue to unlock, a lock body structure and a smart lock are provided in the embodiments of the utility model.

[0045] Combine the following Figures 1 to 7 , describing the lock body structure provided in an embodiment of the present utility model.

[0046] Specifically, the lock body structure includes a support 1, a sleeve 2, a connecting rod 3 and a stud 4.

[0047] The support 1 is used to be connected with the door body, that is, the support 1 is used to be installed on the door body. A movable lock tongue assembly is installed on the support 1.

[0048] The sleeve 2 is rotatably connected to the support 1, and the sleeve 2 is connected to the lock tongue assembly on the support 1, and is used to drive the lock tongue assembly to move. For example, the lock tongue assembly includes a lock tongue and a transmission mechanism connected to the lock tongue. The sleeve 2 is connected to the transmission mechanism, serving as a driving member of the transmission mechanism, and drives the lock tongue to retract through the transmission mechanism. Optionally, the transmission mechanism is set as a gear mechanism or a connecting rod mechanism, and the present utility model does not involve improvements to this content, so it will not be repeated here.

[0049] The connecting rod 3 extends into the sleeve 2 and is connected to the sleeve 2. The connecting rod 3 is used to drive the sleeve 2 to rotate. In actual use, the connecting rod 3 is arranged on the inner side of the door body, which refers to the side where the rear panel of the smart lock is located. The connecting rod 3 is used to install the handle.

[0050] The stud 4 is inserted into the sleeve body 2 from the end of the sleeve body 2 away from the connecting rod 3, and is connected with the internal thread 201, that is, the stud 4 is threadedly matched with the internal thread 201 of the sleeve body 2. The end of the stud 4 facing the connecting rod 3 is provided with a connecting structure 401 for connecting with a screwing tool. Optionally, the connecting structure 401 includes a slot, a cross slot or a hexagonal hole, and accordingly, the screwing tool is a slotted screwdriver, a cross screwdriver or a hexagonal wrench.

[0051] The lock body structure provided in this embodiment can, during the actual installation process, first install the stud 4 into the sleeve 2, and then extend the screwing tool from the inner side of the door body into the sleeve 2 and connect it with the connecting structure 401 of the stud 4. The stud 4 is screwed by the screwing tool to allow the stud 4 to enter the interior of the sleeve 2, and then the lock body structure can be installed in the normal installation order, so the installation order of the lock body structure is less affected.

[0052] The lock structure provided in this embodiment has a connecting rod 3 extending into the sleeve 2 and connected to the sleeve 2, and the sleeve 2 is connected to the bolt assembly, so that the sleeve 2 can be driven by the connecting rod 3, and then the bolt assembly is driven by the sleeve 2 to move, thereby completing the unlocking. The stud 4 is inserted into the sleeve 2 from the end away from the connecting rod 3 and connected to the internal thread 201 of the sleeve 2, and a connecting structure 401 is provided at the end of the stud 4 facing the connecting rod 3, so that the stud 4 can block the end of the sleeve 2 away from the connecting rod 3, and the stud 4 can only be screwed and disassembled on the inner side of the door body, so that the stud 4 can prevent the tool from extending into the sleeve 2 and driving the bolt assembly to move, thereby reducing the safety hazard.

[0053] In addition, by providing a connection structure 401 at one end of the stud 4 facing the connecting rod 3, it is convenient to install the stud 4 in the sleeve 2, improving the installation convenience, and it is convenient to screw out the stud 4 in the sleeve 2, reducing the difficulty of disassembly.

[0054] refer to Figure 3 As shown, in some embodiments provided by the present invention, the connecting rod 3 is configured as a multi-prism structure. Figure 4 and Figure 5As shown, the sleeve body 2 is provided with a polygonal hole 202 for engaging with the connecting rod 3. The internal thread 201 is provided on the inner wall of the polygonal hole 202, the diameter of the inscribed circle of the polygonal hole 202 is less than or equal to the minor diameter of the internal thread 201, and the diameter of the circumscribed circle of the polygonal hole 202 is greater than the minor diameter of the internal thread 201. The inscribed circle of the polygonal hole refers to a circle that is tangent to all sides of the polygon, and the circumscribed circle of the polygonal hole refers to a circle that intersects with all vertices of the polygon.

[0055] In this embodiment, the internal thread 201 is directly provided on the inner wall of the polygonal hole 202, and the structural modification of the sleeve 2 is relatively small, so that the improvement cost of the lock body structure is relatively low. In addition, the internal thread 201 is provided on the inner wall of the polygonal hole 202, so that the stud 4 can be installed without affecting the clamping of the connecting rod 3 and the polygonal hole 202, that is, the requirement of installing the connecting rod 3 and the stud 4 in the sleeve 2 at the same time is met. In addition, since the connection form between the connecting rod and the sleeve is the same as in the related art, there is no need to modify the structure of the connecting rod 3, so the original connecting rod 3 can be used.

[0056] In this embodiment, reference Figure 4 As shown, the diameter of the inscribed circle of the polygonal hole 202 is less than or equal to the minor diameter of the internal thread 201, so as to avoid the polygonal hole 202 completely destroying the arc of the tooth bottom circle of the internal thread 201, thereby retaining a partial arc of the tooth bottom circle of the internal thread 201, as shown in FIG. Figure 4 As shown, four arcs of the tooth bottom circle are retained, so that the internal thread 201 has multiple thread teeth that are screwed together with the stud 4, thereby improving the tightness of the screwing of the stud 4 and the internal thread 201.

[0057] In this embodiment, reference Figure 4 As shown, the diameter of the circumscribed circle of the polygonal hole 202 is larger than the minor diameter of the internal thread 201, so that the polygonal hole 202 can form a limiting surface 601 that matches the connecting rod 3. Further, the diameter of the circumscribed circle of the polygonal hole 202 is larger than the major diameter of the internal thread 201, so that the limiting surface 601 is larger, the matching area of ​​the limiting surface 601 and the connecting rod 3 is increased, and the tightness of the connection between the connecting rod 3 and the polygonal hole 202 is improved.

[0058] Optionally, the connecting rod 3 is a square steel or a hexagonal steel, and correspondingly, the polygonal hole 202 is a quadrilateral hole or a hexagonal hole.

[0059] In some embodiments provided by the present invention, an annular flange 5 is provided at one end of the stud 4 which is away from the connecting rod 3 , and the annular flange 5 abuts against the sleeve body 2 .

[0060] In this embodiment, an annular flange 5 is provided at the end of the stud 4 away from the connecting rod 3, and the annular flange 5 is abutted against the sleeve 2, so that it will not move due to the limitation of the sleeve 2. In the process of screwing the stud 4, the force exerted by the internal thread 201 on the stud 4 and the force exerted by the annular flange 5 on the stud 4 are in opposite directions, and the stud 4 can be stretched to form a certain pre-tightening force on the stud 4, thereby improving the anti-loosening effect of the stud 4 and further reducing the probability of loosening the stud 4 from the outside of the door body.

[0061] In some embodiments provided by the utility model, a counterbore 205 for accommodating the annular flange 5 is provided at one end of the sleeve 2 away from the connecting rod 3, and the annular flange 5 abuts against the bottom of the counterbore 205. In this way, the annular flange 5 can be placed in the sleeve 2, making full use of the space inside the sleeve 2 and improving the compactness of the lock body structure.

[0062] refer to Figure 7 As shown, in some embodiments provided by the present invention, two protrusion structures 6 are provided at one end of the stud 4 away from the connecting rod 3. The side of the protrusion structure 6 facing the stud 4 in the direction of screwing and loosening is the first side, and the side of the protrusion structure 6 facing the stud 4 in the direction of screwing and tightening is the second side. Figure 7 As shown, taking the internal thread 201 as a right-hand thread as an example, the first side is arranged in the counterclockwise direction and the second side is arranged in the clockwise direction. Optionally, the protruding structure 6 is arranged on the end face of the annular flange 5 away from the stud 4 .

[0063] The first side of the protrusion structure 6 is provided with a limiting surface 601, and the two limiting surfaces 601 are symmetrical about the center, the center coincides with the axis of the stud 4, and the two limiting surfaces 601 are used to engage with the screwing tool. For example, the center is the center of the end face of the annular flange 5 away from the stud 4.

[0064] The second side of the protruding structure 6 is provided with a guiding inclined surface 602, and the two guiding inclined surfaces 602 are symmetrical about the center. One end of the guiding inclined surface 602 is connected to the end of the protruding structure 6 away from the stud 4, and the other end is inclined toward the direction close to the stud 4, so as to guide the screwing tool to the end of the protruding structure 6 away from the stud 4.

[0065] In this embodiment, when the stud 4 is installed into the sleeve 2, a screwing tool, such as a flat-blade screwdriver, can be used to make the screwing tool fit with the two limit surfaces 601, and the screwing tool can be rotated in the direction of screwing and tightening the stud 4, so that the stud 4 can be screwed into the sleeve 2. When the stud 4 is screwed in the reverse direction, the screwing tool fits with the two guide inclined surfaces 602, and the screwing tool is rotated in the direction of screwing and loosening the stud 4. Under the guidance of the guide inclined surfaces 602, the screwing tool moves to the top of the protruding structure 6 and cannot be screwed, thereby playing an anti-disassembly role.

[0066] With such an arrangement, the stud 4 can be screwed and tightened on the outside of the door body, thereby improving the convenience of installing the stud 4, and the stud 4 cannot be screwed loose on the outside of the door body, thereby ensuring that the stud 4 cannot be removed from the outside of the door body.

[0067] In some embodiments provided by the utility model, both ends of the sleeve body 2 are provided with a cylindrical portion 203, the support 1 is configured as a shell structure, and the two opposite side walls of the shell structure are provided with through holes, the cylindrical portion 203 is rotatably connected with the through holes in a one-to-one correspondence, and the sleeve body 2 is also provided with a clamping portion 204 clamped with the locking tongue assembly, the clamping portion 204 is arranged between the two cylindrical portions 203, and the clamping portion 204 protrudes from the outer circumferential wall of the cylindrical portion 203.

[0068] In this embodiment, by making the cylindrical parts 203 at both ends of the sleeve 2 rotate with the shell structure, the supporting effect of the shell structure on the sleeve 2 can be improved. By making the clamping part 204 protrude from the outer circumferential wall of the cylindrical part 203, the clamping part 204 can be connected to the lock tongue assembly to drive the lock tongue assembly to move, and can also axially limit the sleeve 2 to prevent the sleeve 2 from escaping from the through hole, thereby improving the stability of the lock body structure.

[0069] In some embodiments provided by the present invention, the housing structure includes two covers 101. The covers 101 are detachably connected and enclose a receiving space, in which at least part of the sleeve 2 and at least part of the locking tongue assembly are disposed, and both covers 101 are provided with through holes.

[0070] In this embodiment, the shell structure includes two covers 101, and the two covers 101 are detachably connected, so as to facilitate the installation of the sleeve 2 or the lock tongue assembly in the accommodating space, or to facilitate the repair or replacement of the lock tongue assembly or sleeve 2 in the accommodating space.

[0071] Optionally, two housing 101 assemblies may be connected via a threaded connector.

[0072] In some embodiments provided by the present invention, a fixing glue is provided between the stud 4 and the internal thread 201. By providing the fixing glue between the stud 4 and the internal thread 201, the anti-loosening performance of the stud 4 can be improved, and the connecting rod 3 can be prevented from driving the stud 4 to loosen.

[0073] According to an embodiment of the present utility model, on the other hand, a smart lock is also provided.

[0074] Specifically, the smart lock includes the lock body structure as described above.

[0075] It should be noted that the smart lock includes a lock body structure, and also includes all the above-mentioned advantages of the lock body structure, which will not be repeated here.

[0076] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A lock body structure, characterized in that: include: Support; A sleeve body, the sleeve body is rotatably connected to the support, the sleeve body is connected to the locking tongue assembly on the support, and is used to drive the locking tongue assembly to move, and the inner wall of the sleeve body is provided with an internal thread; A connecting rod, the connecting rod extends into the sleeve and is connected to the sleeve, and the connecting rod is used to drive the sleeve to rotate; A stud is inserted into the sleeve from one end of the sleeve away from the connecting rod and connected to the internal thread. An end of the stud facing the connecting rod is provided with a connecting structure for connecting to a screwing tool.

2. The lock body structure according to claim 1, characterized in that: The connecting rod is configured as a multi-prism structure, the interior of the sleeve is provided with a polygonal hole for engaging with the connecting rod, the internal thread is provided on the inner wall of the polygonal hole, the diameter of the inscribed circle of the polygonal hole is less than or equal to the minor diameter of the internal thread, and the diameter of the circumscribed circle of the polygonal hole is greater than the minor diameter of the internal thread.

3. The lock body structure according to claim 1, characterized in that: An annular flange is arranged at one end of the stud away from the connecting rod, and the annular flange abuts against the sleeve body.

4. The lock body structure according to claim 3, characterized in that: A countersunk hole for accommodating the annular flange is provided at one end of the sleeve body away from the connecting rod, and the annular flange abuts against the bottom of the countersunk hole.

5. The lock body structure according to claim 1, characterized in that: The end of the stud facing away from the connecting rod is provided with two protrusion structures, the side of the protrusion structure facing the direction of the stud being screwed to loosen is the first side, and the side of the protrusion structure facing the direction of the stud being screwed to tighten is the second side; Wherein, the first side of the protruding structure is provided with a limiting surface, the two limiting surfaces are symmetrical about the center, the center coincides with the axis of the stud, and the two limiting surfaces are used to be engaged with a screwing tool; A guiding bevel is provided on the second side of the protruding structure, and the two guiding bevels are symmetrical about the center. One end of the guiding bevel is connected to the end of the protruding structure away from the stud, and the other end is inclined toward the direction close to the stud, so as to guide the screwing tool to the end of the protruding structure away from the stud.

6. The lock body structure according to claim 1, characterized in that: Both ends of the sleeve are provided with a cylindrical portion, the support is configured as a shell structure, and two opposite side walls of the shell structure are provided with through holes, the cylindrical portion is rotatably connected with the through holes in a one-to-one correspondence, and the sleeve is also provided with a clamping portion clamped with the locking tongue assembly, the clamping portion is arranged between the two cylindrical portions, and the clamping portion protrudes from the outer circumferential wall of the cylindrical portion.

7. The lock body structure according to claim 6, characterized in that: The shell structure includes two covers, which are detachably connected and enclose a receiving space, at least part of the sleeve and at least part of the locking tongue assembly are arranged in the receiving space, and both of the covers are provided with the through hole.

8. The lock body structure according to claim 1, characterized in that: A fixing glue is provided between the stud and the internal thread.

9. The lock body structure according to claim 1, characterized in that: The connection structure includes a slot, a cross slot or a hexagonal hole.

10. A smart lock, characterized in that: It comprises a lock body structure as described in any one of claims 1 to 9.

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