Lock body and lock

Abstract

This invention relates to the field of smart door lock technology, and discloses a lock body and lock mechanism. The lock body includes a lock housing, a retractable bolt assembly mounted on the lock housing, and a drive assembly disposed on the lock housing and located on one side of the bolt assembly. Specifically, the drive assembly includes a roller, which is retractably mounted on the lock housing. The roller is adapted to partially extend out of the lock housing to abut against the door frame, and the roller can rotate clockwise or counterclockwise to drive the lock housing closer to or further away from the door frame. The lock body and lock mechanism provided by this invention can realize automatic door opening and closing, offering high convenience.

Description

Technical Field

[0001] This invention relates to the field of smart door lock technology, specifically to a lock body and lock fixture. Background Technology

[0002] Modern security locks are divided into fully mechanical security locks and electronic smart security locks. Fully mechanical security locks are becoming increasingly unsuitable for modern lifestyles due to their inconvenience in opening doors, and are gradually being replaced by electronic security locks.

[0003] However, current electronic security locks on the market often leave the door closed after unlocking via fingerprint or facial recognition, requiring the user to manually pull the handle to open it. Similarly, if the door isn't closed firmly enough, it may remain ajar, necessitating a second closing action. Therefore, these electronic security locks offer poor ease of use and negatively impact the user experience. Summary of the Invention

[0004] In view of this, the present invention provides a lock body and lock to solve the problem of poor convenience in opening and closing existing electronic anti-theft locks.

[0005] In a first aspect, the present invention provides a lock body, including a lock housing, a retractable latch assembly mounted on the lock housing, and a drive assembly disposed on the lock housing and located on one side of the latch assembly. Specifically, the drive assembly includes a roller, which is retractably mounted on the lock housing, adapted to partially extend out of the lock housing to abut against a door frame, and capable of rotating clockwise or counterclockwise to drive the lock housing toward or away from the door frame.

[0006] Beneficial Effects: In this solution, the drive component is installed on one side of the latch component. The roller of the drive component is retractably installed inside the lock box and can rotate forward and backward to drive the lock box closer to or away from the door frame. In application, when a user opens the door, after unlocking via fingerprint or facial recognition, the roller rotates and extends out of the lock box to abut against the door frame. At this time, the outer surface of the roller rubs against the door frame, and the roller experiences a counter-friction force from the door frame. Under the action of this counter-friction force, the roller drives the lock box away from the door frame, realizing automatic door opening. When the user closes the door, if the door is close to the door frame or in a slightly ajar state, the roller abuts against the door frame and rotates in the opposite direction to when the door was opened. The outer surface of the roller rubs against the outer surface of the door frame, and the roller experiences a counter-friction force from the door frame. Under the action of this counter-friction force, the roller drives the lock box closer to the door frame, realizing automatic door closing. Therefore, the lock body of this application can realize automatic door opening and closing without manual operation by the user, offering high convenience.

[0007] In one alternative embodiment, the outer peripheral wall of the roller is constructed with an uneven structure.

[0008] Beneficial effects: The concave-convex structure can increase the coefficient of friction of the outer peripheral wall of the roller, improve the friction between the roller and the door frame, and thus ensure the reliability of opening and closing the door.

[0009] In one alternative embodiment, the roller includes a coaxially arranged roller portion and a shaft portion, with the shaft portion arranged on both axial sides of the roller portion. The drive assembly further includes a drive member and a transmission group, the transmission group being connected between the output end of the drive member and one of the shaft portions, and the drive member being adapted to drive the roller portion to rotate via the transmission group.

[0010] Beneficial effects: With this configuration, the transmission group is connected between the output end of the drive component and one of the rotating shafts. Under the drive of the drive component, the transmission group drives the rotating shaft to rotate around its own axis, and at the same time drives the rotating wheel to rotate synchronously, thereby realizing the forward or reverse rotation of the roller. The structure is simple and highly automated.

[0011] In one optional embodiment, the transmission assembly includes a first transmission wheel, a second transmission wheel, and a transmission component. The first transmission wheel is connected to the output end of the drive component, the second transmission wheel is connected to the rotating shaft, and the transmission component is constructed as a ring structure, engaging with the first transmission wheel and the second transmission wheel.

[0012] Beneficial effects: The transmission assembly adopts a meshing transmission method, which has the advantages of smooth transmission, high transmission efficiency and long service life.

[0013] In one alternative embodiment, the transmission assembly further includes a first elastic element disposed between the first transmission wheel and the second transmission wheel. The first elastic element has two clamping ends that clamp and engage with the outer side of the transmission element.

[0014] Beneficial effects: The two clamping ends of the first elastic element are clamped and fitted onto the outside of the transmission component. Under the elastic action of the first elastic element itself, the two clamping ends tend to move closer to each other, thus ensuring that the transmission component is always in a taut state. With this arrangement, the first elastic element can achieve self-adjustment of the tension of the transmission component, avoiding the transmission component from being too loose and affecting transmission efficiency.

[0015] In one alternative embodiment, the drive assembly further includes a second elastic member abutting between the rotating shaft and the lock box, and the second elastic member being compressed when the rotating wheel retracts into the lock box.

[0016] Beneficial effects: When opening the door, the second elastic element provides a pushing force to the roller, allowing it to automatically pop out and partially extend from the lock housing to abut against the door frame, increasing the friction between the roller and the door frame. When closing the door, the second elastic element provides a buffering force, creating a damping sensation, reducing closing noise, and protecting the lock body structure.

[0017] In one optional embodiment, the lock box has a first receiving cavity with an open portion, and a roller is arranged in the first receiving cavity. The open portion and the roller portion are positioned correspondingly, and the size of the open portion is smaller than the size of the roller.

[0018] Beneficial effects: The open section allows the roller's rotating part to extend out of the lock box, enabling it to rub against the door frame; and the size of the open section is smaller than the size of the roller, preventing the roller from completely detaching from the lock box and ensuring reliable use.

[0019] In one optional embodiment, two second elastic elements are provided, and two first recesses are formed on the side of the first accommodating cavity away from the open portion. A limiting block is respectively fitted on the rotating shaft portion on both sides of the rotating wheel portion, and each limiting block is provided with a second recess. Each second recess is respectively arranged opposite to one of the first recesses, and each second elastic element is arranged between the first recess and the second recess.

[0020] Beneficial effects: With this configuration, the two second elastic elements correspond to one of the pivot sections, thereby providing a stable and balanced pushing force to the roller, allowing the roller section located between the two pivot sections to extend smoothly out of the lock box, avoiding the roller section from tilting and reducing the contact area between it and the door frame.

[0021] In one alternative embodiment, the lock box further includes a second receiving cavity that communicates with the first receiving cavity. A transmission assembly is arranged in the second receiving cavity, wherein a rotating shaft extends into the second receiving cavity and is connected to the transmission assembly.

[0022] Beneficial effects: The rollers are arranged in the first accommodating cavity and the transmission assembly is arranged in the second accommodating cavity, which ensures the reliability of the relative positions of the rollers and the transmission assembly and avoids displacement due to movement, thus preventing the realization of various functions.

[0023] Secondly, the present invention also provides a lock, including a lock body as described in any of the above embodiments.

[0024] Beneficial effects: Since the lock of the present invention includes a lock body, it has the same effects as the lock body of the present invention, and will not be described in detail here. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1This is a schematic diagram of the structure of a lock according to an embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of the structure of a lock body according to an embodiment of the present invention;

[0028] Figure 3 This is a partial cross-sectional view of a lock body according to an embodiment of the present invention;

[0029] Figure 4 This is a partial structural diagram of a lock body according to an embodiment of the present invention;

[0030] Figure 5 This is a cross-sectional view of a lock box in a lock body according to an embodiment of the present invention.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Lock; 10. Lock box; 11. First receiving cavity; 111. Opening; 112. First recess; 12. Second receiving cavity; 13. Third receiving cavity; 14. Fourth receiving cavity; 20. Lock tongue assembly; 21. Main lock tongue; 22. Angled lock tongue; 30. Drive assembly; 31. Roller; 311. Rotating wheel; 312. Rotating shaft; 313. Concave-convex structure; 32. Drive component; 33. First transmission wheel; 34. Second transmission wheel; 35. Transmission component; 36. First elastic component; 361. Clamping end; 37. Second elastic component; 38. Limiting block; 381. Second recess; 2. Door frame. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Modern security locks are divided into fully mechanical security locks and electronic smart security locks. Fully mechanical security locks are becoming increasingly unsuitable for modern lifestyles due to their inconvenience in opening doors, and are gradually being replaced by electronic security locks.

[0035] However, current electronic security locks on the market often leave the door closed after unlocking via fingerprint or facial recognition, requiring the user to manually pull the handle to open it. Similarly, if the door isn't closed firmly enough, it may remain ajar, necessitating a second closing action. Therefore, these electronic security locks offer poor ease of use and negatively impact the user experience.

[0036] Based on this, in order to solve the problem of poor convenience in opening and closing existing electronic anti-theft locks, the present invention provides a lock body and lock 1.

[0037] The following is combined Figures 1 to 5 The following describes embodiments of the present invention.

[0038] According to an embodiment of the present invention, in one aspect, a lock body is provided, including a lock housing 10, a retractable latch assembly 20 mounted on the lock housing 10, and a drive assembly 30 disposed on the lock housing 10 and located on one side of the latch assembly 20. Specifically, the drive assembly 30 includes a roller 31, which is retractably mounted on the lock housing 10. The roller 31 is adapted to partially extend out of the lock housing 10 to abut against a door frame 2, and the roller 31 is capable of rotating clockwise or counterclockwise to drive the lock housing 10 toward or away from the door frame 2.

[0039] In this embodiment, the drive assembly 30 is installed on one side of the latch assembly 20, and the roller 31 of the drive assembly 30 is retractably installed inside the lock box 10 and can rotate forward and backward to drive the lock box 10 closer to or further away from the door frame 2. In the application, when a user opens the door, after unlocking via fingerprint or facial recognition, the roller 31 rotates and extends partially out of the lock box 10 to abut against the door frame 2. At this time, the outer surface of the roller 31 rubs against the door frame 2, and the roller 31 is subjected to the anti-friction force of the door frame 2. Under the action of the anti-friction force, the roller 31 drives the lock box 10 away from the door frame 2, realizing the automatic opening of the door. When the user closes the door, when the door is close to the door frame 2 or the door is in a slightly ajar state, the roller 31 abuts against the door frame 2, and the roller 31 rotates in the opposite direction to when the door was opened. The outer surface of the roller 31 rubs against the outer surface of the door frame 2, and the roller 31 is subjected to the anti-friction force of the door frame 2. Under the action of the anti-friction force, the roller 31 drives the lock box 10 closer to the door frame 2, realizing the automatic closing of the door.

[0040] Therefore, the lock body of this application can realize the automatic opening and closing of the door without the need for manual operation by the user, which is highly convenient.

[0041] It should be noted that the rotation direction of roller 31 depends on the rotation direction of the door; the rotation direction of roller 31 is opposite to that of the door. For example, if the door is an outward-opening door, then to open the door, the door needs to rotate clockwise around its hinge, and roller 31 rotates counterclockwise around its own axis. To close the door, the door needs to rotate counterclockwise around its hinge, and roller 31 rotates clockwise around its own axis.

[0042] For example, with Figure 1As shown in the example, the lock box 10 is arranged adjacent to the door frame 2. The latch assembly 20 and the roller 31 are both telescopically mounted on the lock box 10 along the X direction. Both the latch assembly 20 and the roller 31 can extend out of the lock box 10 toward the door frame 2. The axis of the roller 31 is in the Y direction. The X direction corresponds to the width direction of the door frame 2, and the Y direction corresponds to the height direction of the door frame 2. Preferably, the X and Y directions are perpendicular to each other.

[0043] It is understood that the lock body provided in this application can be used not only in electronic anti-theft locks, but also in ordinary mechanical locks.

[0044] Furthermore, in some embodiments, the outer peripheral wall of the roller 31 is constructed with a concave-convex structure 313. The concave-convex structure 313 can increase the friction coefficient of the outer peripheral wall of the roller 31 and improve the friction between the roller 31 and the door frame 2, thereby ensuring the reliability of opening and closing the door.

[0045] This application does not limit the specific construction of the concave-convex structure 313, as long as it can achieve the function of increasing the friction coefficient of the roller 31. See reference. Figure 2 and Figure 4 For example, the concave-convex structure 313 can be convex and concave portions arranged at intervals along the circumference of the roller 31, preferably evenly distributed. Both the convex and concave portions are constructed as elongated strips and extend along the axial direction of the roller 31. For example, the outer peripheral wall of the roller 31 can also be provided with a plurality of protrusions, which together with the outer peripheral wall of the roller 31 form the aforementioned concave-convex structure 313.

[0046] For example, roller 31 may be made of rubber to further increase the coefficient of friction.

[0047] More specifically, in some embodiments, see [reference] Figure 2 and Figure 4 The roller 31 includes a rotating wheel portion 311 and a rotating shaft portion 312 arranged coaxially, with the rotating shaft portion 312 arranged on both axial sides of the rotating wheel portion 311. Correspondingly, the rotating wheel portion 311 of the roller 31 extends out of the lock box 10 to abut against the door frame 2, and the aforementioned concave-convex structure 313 is provided on the outer peripheral wall of the rotating wheel portion 311.

[0048] In some embodiments, see Figure 3 and Figure 5The lock box 10 has a first receiving cavity 11 with an opening 111. A roller 31 is arranged inside the first receiving cavity 11, with the opening 111 and the rotating wheel 311 positioned correspondingly. The size of the opening 111 is smaller than the size of the roller 31. The opening 111 allows the rotating wheel 311 of the roller 31 to extend out of the lock box 10, enabling friction with the door frame 2. Furthermore, the smaller size of the opening 111 prevents the roller 31 from completely detaching from the lock box 10, ensuring reliable operation.

[0049] For example, along the Y direction, the size of the opening 111 is slightly larger than the size of the rotating wheel 311, so that the rotating wheel 311 can extend out of the lock box 10 from the opening 111, and the rotating shaft 312 is confined within the lock box 10.

[0050] For example, the lock box 10 includes a box body and a side strip. The side strip is located on the side of the box body near the door frame 2 and extends along the Y direction. A first receiving cavity 11 is formed in the box body, and an opening 111 is opened on the side strip. The rotating shafts 312 on both sides of the rotating wheel 311 abut against the inner side of the side strip.

[0051] Furthermore, in some embodiments, see [reference] Figure 3 and Figure 4 The drive assembly 30 also includes a drive member 32 and a transmission group. The transmission group is connected between the output end of the drive member 32 and one of the rotating shafts 312. The drive member 32 is adapted to drive the rotating wheel 311 to rotate via the transmission group. With this configuration, the drive assembly 30 has the transmission group connected between the output end of the drive member 32 and one of the rotating shafts 312. Driven by the drive member 32, the transmission group drives the rotating shaft 312 to rotate around its own axis, and simultaneously drives the coaxially arranged rotating wheel 311 to rotate synchronously, thereby realizing the forward or reverse rotation of the roller 31. The structure is simple and highly automated.

[0052] For example, the drive unit 32 can provide rotational motion to the transmission assembly. The axis of the output end of the drive unit 32 is in the Y direction, the transmission assembly extends along the X direction, and the axis of the roller 31 is in the Y direction. In this way, the transmission assembly can transmit the rotational motion of the drive unit 32 about the axis to the roller 31, realizing the forward or reverse rotation of the roller 31. For example, the drive unit 32 can be a stepper motor, servo motor, etc.

[0053] In some embodiments, see Figure 5The lock box 10 also has a second receiving cavity 12, which is connected to the first receiving cavity 11. A transmission assembly is arranged in the second receiving cavity 12, and a rotating shaft 312 extends into the second receiving cavity 12 and is connected to the transmission assembly. The roller 31 is arranged in the first receiving cavity 11, and the transmission assembly is arranged in the second receiving cavity 12, which ensures the reliability of the relative position of the roller 31 and the transmission assembly and avoids displacement due to movement, which would affect the realization of various functions.

[0054] For example, along the Y direction, the second receiving cavity 12 is arranged above the first receiving cavity 11, and the second receiving cavity 12 extends along the X direction. For example, the second receiving cavity 12 is formed inside the box.

[0055] For example, the lock box 10 is further provided with a third receiving cavity 13, which is connected to the second receiving cavity 12. The driving member 32 is arranged in the third receiving cavity 13, and the output end of the driving member 32 extends into the second receiving cavity 12.

[0056] For example, along the Y direction, the second receiving cavity 12 is arranged above the third receiving cavity 13, and along the X direction, the third receiving cavity 13 is located inside the second receiving cavity 12, that is, on the side away from the door frame 2. For example, the third receiving cavity 13 is formed inside the box.

[0057] Specifically, in some embodiments, see [reference] Figure 3 and Figure 4 The transmission assembly includes a first transmission wheel 33, a second transmission wheel 34, and a transmission component 35. The first transmission wheel 33 is connected to the output end of the drive component 32, the second transmission wheel 34 is connected to the rotating shaft 312, and the transmission component 35 has a ring-shaped structure. The transmission component 35 meshes with the first transmission wheel 33 and the second transmission wheel 34. The transmission assembly adopts a meshing transmission method, which has the advantages of smooth transmission, high transmission efficiency, and long service life.

[0058] For example, the first transmission wheel 33 is coaxially sleeved on the output end of the drive member 32 and can rotate synchronously with the output end; the second transmission wheel 34 is coaxially sleeved on the rotating shaft 312 and can drive the rotating shaft 312 to rotate synchronously. For example, the transmission member 35 can be a transmission belt or a transmission chain.

[0059] In some embodiments, see Figure 3 and Figure 4The transmission assembly also includes a first elastic element 36, which is located between the first transmission wheel 33 and the second transmission wheel 34. The first elastic element 36 has two clamping ends 361, which clamp and engage with the outer side of the transmission member 35. Due to the elasticity of the first elastic element 36 itself, the two clamping ends 361 tend to move closer together, thus ensuring that the transmission member 35 is always in a taut state. This arrangement allows the first elastic element 36 to self-adjust the tension of the transmission member 35, preventing it from becoming too loose and affecting transmission efficiency.

[0060] For example, along the Y direction, the first elastic member 36 is arranged above the transmission assembly, and along the X direction, it is located between the first transmission wheel 33 and the second transmission wheel 34. Preferably, along the X direction, the two clamping ends 361 of the first elastic member 36 are clamped and engaged with the middle of the transmission member 35.

[0061] For example, the lock box 10 is further provided with a fourth receiving cavity 14, which is connected to the second receiving cavity 12. The first elastic member 36 is arranged in the fourth receiving cavity 14, and the two clamping ends 361 of the first elastic member 36 extend into the second receiving cavity 12 to clamp and cooperate with the outside of the transmission member 35.

[0062] For example, along the Y direction, the fourth receiving cavity 14 is arranged above the second receiving cavity 12, and along the X direction, the fourth receiving cavity 14 is located in the middle of the second receiving cavity 12. For example, the fourth receiving cavity 14 is formed inside the box.

[0063] Furthermore, in some embodiments, see [reference] Figure 3 Figure 4 Figure 3 The drive assembly 30 also includes a second elastic element 37, which abuts against the pivot portion 312 and the lock housing 10. When the pivot portion 311 retracts into the lock housing 10, the second elastic element 37 is compressed. In this embodiment, when the door is opened, the second elastic element 37 provides a pushing force to the roller 31, allowing the roller 31 to automatically pop out and partially extend out of the lock housing 10 to abut against the door frame 2, thereby increasing the friction between the roller 31 and the door frame 2. When the door is closed, the second elastic element 37 provides a buffering force, creating a damping sensation, reducing the noise of closing the door, and protecting the lock body structure.

[0064] More specifically, in some embodiments, the number of second elastic members 37 is two, and the two second elastic members 37 are respectively arranged corresponding to one of the rotating shaft portions 312.

[0065] Specifically, the first accommodating cavity 11 has two first recesses 112 formed on the side away from the opening 111; correspondingly, a limiting block 38 is respectively fitted on the rotating shaft 312 on both sides of the rotating wheel 311, and each limiting block 38 is provided with a second recess 381. Each second recess 381 is respectively arranged opposite to one of the first recesses 112, and each second elastic member 37 is arranged between the first recess 112 and the second recess 381.

[0066] With this configuration, the two second elastic members 37 correspond to one of the rotating shafts 312 respectively, thereby providing a stable and balanced pushing force to the roller 31, so that the rotating wheel 311 located between the two rotating shafts 312 extends smoothly out of the lock box 10, avoiding the rotating wheel 311 from tilting and reducing the contact area between it and the door frame 2.

[0067] For example, the first recess 112 and the second recess 381 are arranged at intervals along the X direction so that the second elastic member 37 can provide elastic force to the roller 31 along the X direction.

[0068] It should be noted that each limiting block 38 and the rotating shaft portion 312 are rotatably connected. For example, the rotating shaft portion 312 can be constructed as a cylindrical structure. Correspondingly, the limiting block 38 is provided with a through hole along the Y direction, and the rotating shaft portion 312 passes through the through hole of the limiting block 38, thereby realizing the relative rotation of the limiting block 38 and the rotating shaft portion 312.

[0069] For example, the second elastic element 37 can be a spring.

[0070] For example, the above-mentioned latch assembly 20 includes a main latch 21 and a slanted latch 22, and its specific setting is the conventional setting of the lock 1, which will not be described in detail here.

[0071] For example, along the Y direction, the drive component 30 can be located below the latch component 20, that is, the drive component 30 is located inside the lock box 10 at the lower level.

[0072] According to an embodiment of the present invention, in another aspect, a lock 1 is also provided, including a lock body as described in any of the above embodiments. The lock body includes a lock housing 10, a retractable latch assembly 20 mounted on the lock housing 10, and a drive assembly 30 disposed on the lock housing 10 and located on one side of the latch assembly 20. Specifically, the drive assembly 30 includes a roller 31, which is retractably mounted on the lock housing 10. The roller 31 is adapted to partially extend out of the lock housing 10 to abut against a door frame 2, and the roller 31 is capable of rotating clockwise or counterclockwise to drive the lock housing 10 closer to or further away from the door frame 2.

[0073] In the application, when a user opens the door, after unlocking via fingerprint or facial recognition, the roller 31 rotates and extends partially out of the lock box 10 to abut against the door frame 2. At this time, the outer surface of the roller 31 rubs against the door frame 2, and the roller 31 is subjected to the anti-friction force of the door frame 2. Under the action of the anti-friction force, the roller 31 drives the lock box 10 away from the door frame 2, realizing the automatic opening of the door. When the user closes the door, when the door is close to the door frame 2 or the door is in a slightly ajar state, the roller 31 abuts against the door frame 2, and the roller 31 rotates in the opposite direction to when the door was opened. The outer surface of the roller 31 rubs against the outer surface of the door frame 2, and the roller 31 is subjected to the anti-friction force of the door frame 2. Under the action of the anti-friction force, the roller 31 drives the lock box 10 closer to the door frame 2, realizing the automatic closing of the door.

[0074] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A lock body, characterized in that, include: Lock box (10); The latch assembly (20) is retractably mounted on the lock box (10). A drive assembly (30) is disposed on the lock box (10) and located on one side of the latch assembly (20); the drive assembly (30) includes a roller (31) which is retractably mounted on the lock box (10), the roller (31) being adapted to partially extend out of the lock box (10) to abut against the door frame (2), and the roller (31) being able to rotate forward or backward to drive the lock box (10) to move closer to or away from the door frame (2); The roller (31) includes a rotating wheel portion (311) and a rotating shaft portion (312) arranged coaxially, and the rotating shaft portion (312) is arranged on both sides of the rotating wheel portion (311). The drive assembly (30) further includes a drive member (32) and a transmission group. The transmission group is connected between the output end of the drive member (32) and one of the rotating shafts (312). The drive member (32) is adapted to drive the rotating wheel (311) to rotate through the transmission group. The transmission assembly includes a first transmission wheel (33), a second transmission wheel (34), and a transmission component (35). The first transmission wheel (33) is connected to the output end of the drive component (32), and the second transmission wheel (34) is connected to the rotating shaft (312). The transmission component (35) is constructed as a ring structure, and the transmission component (35) meshes and drives between the first transmission wheel (33) and the second transmission wheel (34). The transmission assembly further includes a first elastic element (36), which is disposed between the first transmission wheel (33) and the second transmission wheel (34). The first elastic element (36) has two clamping ends (361), which clamp and cooperate with the outside of the transmission element (35).

2. The lock body according to claim 1, characterized in that, The outer peripheral wall of the roller (31) has a concave-convex structure (313).

3. The lock body according to claim 1, characterized in that, The drive assembly (30) further includes a second elastic element (37) which abuts between the rotating shaft (312) and the lock box (10). When the rotating wheel (311) retracts into the lock box (10), the second elastic element (37) is compressed.

4. The lock body according to claim 3, characterized in that, The lock box (10) is provided with a first accommodating cavity (11), the first accommodating cavity (11) has an opening (111), the roller (31) is arranged in the first accommodating cavity (11), the opening (111) is positioned corresponding to the roller (311), and the size of the opening (111) is smaller than the size of the roller (31).

5. The lock body according to claim 4, characterized in that, The second elastic member (37) is provided in two, and the first receiving cavity (11) has two first recesses (112) formed on the side away from the opening (111). A limiting block (38) is respectively fitted on the rotating shaft (312) on both sides of the rotating wheel (311). Each limiting block (38) is provided with a second recess (381). Each second recess (381) is respectively arranged opposite to one of the first recesses (112). Each second elastic member (37) is arranged between the first recess (112) and the second recess (381).

6. The lock body according to claim 4, characterized in that, The lock box (10) is also provided with a second accommodating cavity (12), which is connected to the first accommodating cavity (11). The transmission assembly is arranged in the second accommodating cavity (12), wherein one of the rotating shafts (312) extends into the second accommodating cavity (12) and is connected to the transmission assembly.

7. A lock (1), characterized in that, Includes the lock body as described in any one of claims 1 to 6.

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