Unlocking transmission assembly and lock

Abstract

The utility model discloses an unlocking transmission assembly and a lockset. The unlocking transmission assembly comprises a mounting main body; the first connecting piece is rotationally arranged on the mounting main body around a first axis, and the first connecting piece is used for being connected with the clutch lever; the second connecting piece is rotationally arranged on the mounting main body around the first axis and is used for connecting a handle; the reversing fixing assembly is detachably connected between the first connecting piece and the second connecting piece, the reversing fixing assembly is provided with a first mounting position and a second mounting position relative to the mounting body, and the first mounting position and the second mounting position are in central symmetry about the first axis. When the working rotation direction of the handle is switched, the first connecting piece and the second connecting piece are separated through the reversing fixing assembly, at the moment, the handle drives the second connecting piece to rotate by 180 degrees relative to the first connecting piece, and the reversing fixing assembly is switched between the first installation position and the second installation position; and then the first connecting piece and the second connecting piece are connected, so that reversing of the handle can be conveniently achieved, and universality and use convenience are improved.

Description

Technical Field

[0001] The utility model relates to the technical field related to locks, and in particular to an unlocking transmission component and a lock. Background Art

[0002] In the prior art, the electric clutch mechanism of electric locks has three installation styles: front, center, and rear. The front and center installations are the most widely used. In the front installation, the electric clutch mechanism is located within the front panel, connected between the clutch lever and the handle. The electric clutch mechanism switches its operating state to engage or disengage the clutch lever and handle. In the center installation, the handle and clutch lever are directly connected, with the center portion of the clutch lever extending through the lock body. The electric clutch mechanism is located within the lock body, connecting the clutch lever and the lock tongue. Both the front and center installations hinder the handle's reversing function, impacting the lock's versatility.

[0003] In addition, electric locks are generally equipped with an identification module on the handle, and the identification module is connected to the electric clutch mechanism through wires. During the process of reversing and adjusting the handle, the wires are prone to excessive twisting and breakage or affecting the service life. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one of the objectives of the present invention is to provide an unlocking transmission assembly that can conveniently achieve handle reversal, thereby improving versatility and ease of use; a second objective is to provide a lock that utilizes the unlocking transmission assembly.

[0005] According to an embodiment of the first aspect of the present utility model, an unlocking transmission assembly includes: a mounting body; a first connecting member, which is rotatable around a first axis and is arranged on the mounting body, and the first connecting member is used to connect a clutch rod; a second connecting member, which is rotatable around the first axis and is arranged on the mounting body, and the second connecting member is used to connect a handle; a reversing fixing assembly, which is detachably connected between the first connecting member and the second connecting member, and the reversing fixing assembly has a first mounting position and a second mounting position relative to the mounting body, and the first mounting position and the second mounting position are symmetrical about the center of the first axis.

[0006] An unlocking transmission assembly according to an embodiment of the present invention has at least the following beneficial effects:

[0007] When the above unlocking transmission assembly is used to switch the working rotation direction of the handle, the reversing fixing assembly is used to separate the first connecting member and the second connecting member. At this time, the handle drives the second connecting member to rotate 180° relative to the first connecting member. The reversing fixing assembly is switched from one of the first installation position and the second installation position to the other, and then the first connecting member and the second connecting member are connected again to conveniently realize the reversal of the handle, thereby improving versatility and convenience of use.

[0008] In some embodiments of the present invention, the reversing fixing assembly includes a first mounting hole and a second mounting hole that are symmetrical about the first axis, a threaded through hole corresponding to the first mounting hole or the second mounting hole, and a locking screw adapted to the threaded through hole; the first mounting hole and the second mounting hole are arranged on the first connecting member, and the threaded through hole is arranged on the second connecting member, or the first mounting hole and the second mounting hole are arranged on the second connecting member, and the threaded through hole is arranged on the first connecting member.

[0009] In some embodiments of the present invention, the first mounting hole and the second mounting hole are provided on the first connecting member, the threaded through hole is provided on the second connecting member, the mounting body is provided with a torsion spring member acting on the second connecting member, the two cantilever arms of the torsion spring member extend back to back and are approximately perpendicular to the first axis, the second connecting member is provided with an abutting portion capable of abutting against any of the cantilever arms, and when the locking screw is connected to the threaded through hole, the end of the locking screw extends out of the threaded through hole so as to be able to abut against the other cantilever arm.

[0010] In some embodiments of the present invention, the first connecting member includes a first sleeve and a first flange provided at one end of the first sleeve, the second connecting member includes a second sleeve and a second flange provided at one end of the second sleeve, the first sleeve and the second sleeve are used to connect the clutch rod and the handle, respectively, the second flange is fitted with the first flange, the first mounting hole and the second mounting hole are provided through the first flange, the threaded through hole is provided through the second flange, a first wire passing channel is provided in the first sleeve, and a second wire passing channel connected to the first wire passing channel is provided in the second sleeve.

[0011] In some embodiments of the present invention, the first sleeve and the second sleeve are both cylindrical in shape and coaxially arranged with the first axis, the mounting body is a shell assembly, the interior of the shell assembly is provided with a cavity for accommodating the first flange and the second flange, the shell assembly is provided with a first through hole for rotation of the first sleeve and a second through hole for rotation of the second sleeve, the first sleeve and the second sleeve extend out of the cavity from the first through hole and the second through hole respectively, and one end of the first wire-passing channel and the second wire-passing channel both extend out of the shell assembly.

[0012] In some embodiments of the present invention, an angle limiting mechanism for limiting the rotation angles of the first flange and the second flange respectively is provided in the housing assembly.

[0013] In some embodiments of the present invention, the angle limiting mechanism includes a torsion spring member arranged in the cavity, the two cantilever arms of the torsion spring member extend back to back and are approximately perpendicular to the first axis, and the second flange is formed with an abutment portion that can abut against any of the cantilever arms to limit the rotation angle of the second flange.

[0014] In some embodiments of the present invention, the angle limiting mechanism includes a first limiting portion and a second limiting portion provided on the surface of the first flange and arranged circumferentially around the first axis. The inner wall of the shell assembly is provided with a blocking portion located between the first limiting portion and the second limiting portion. When the first flange rotates around the first sleeve, the blocking portion can abut against the first limiting portion or the second limiting portion to limit the rotation angle of the first flange.

[0015] In some embodiments of the present invention, the shell assembly includes a rectangular bottom box with an opening and a face cover for closing the opening of the rectangular bottom box, positioning protrusions are provided at the four corners of the opening edge of the rectangular bottom box, and positioning notches corresponding to the positioning protrusions are provided at the four corners of the face cover, and an insert plate portion is provided at the upper end of the face cover protruding toward the interior of the cavity along its thickness direction, and a slot is provided on the upper side plate of the rectangular bottom box to cooperate with the insert plate portion, and the two side edges of the middle and lower part of the face cover are connected to the rectangular bottom box by threaded fasteners.

[0016] In some embodiments of the present invention, the cavity is provided with an installation position for installing an electric clutch mechanism below the first flange and the second flange, and the first connecting member and the second connecting member can be detachably connected to the housing assembly.

[0017] According to an embodiment of the second aspect of the present invention, a lock device includes the aforementioned unlocking transmission assembly. When the lock device employing the unlocking transmission assembly needs to switch the operating rotation direction of the handle, the first connecting member and the second connecting member are separated by the reversing fixing assembly. The handle then drives the second connecting member to rotate 180 degrees relative to the first connecting member. The reversing fixing assembly then reconnects the first connecting member and the second connecting member, thereby conveniently achieving handle reversal, thereby improving versatility and ease of use.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 This is a structural diagram of an embodiment of an unlocking transmission assembly of the present utility model;

[0021] Figure 2 This is a structural diagram of an embodiment of the lock of the present utility model;

[0022] Figure 3 for Figure 1 A schematic diagram of the structure of the reversing fixing assembly of the embodiment when it is in the first installation position;

[0023] Figure 4 for Figure 1 A schematic diagram of the structure of the reversing fixing assembly of the embodiment when it is in the second installation position;

[0024] Figure 5 The figure is a structural diagram of an embodiment in which a first connecting member, a second connecting member, a torsion spring and a reversing fixing assembly are combined.

[0025] Reference numerals:

[0026] Clutch lever 10; handle 20; mounting body 100; rectangular bottom box 110; positioning protrusion 111; slot 112; cover 120; positioning notch 121; plug-in plate portion 122; blocking portion 123; first connecting member 200; first sleeve 210; first wire passage 211; first flange 220; first limiting portion 221; second limiting portion 222; second connecting member 300; second sleeve 310; second wire passage 311; second flange 320; abutting portion 321; first mounting hole 410; second mounting hole 420; threaded through hole 430; locking screw 440; torsion spring member 500; cantilever arm 510. DETAILED DESCRIPTION

[0027] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0029] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0030] Reference Figure 1 、 Figure 3 and Figure 4 According to an embodiment of the present invention, an unlocking transmission assembly includes: a mounting body 100; a first connecting member 200, which is rotatably provided on the mounting body 100 around a first axis, and the first connecting member 200 is used to connect to the clutch lever 10; a second connecting member 300, which is rotatably provided on the mounting body 100 around the first axis, and the second connecting member 300 is used to connect to the handle 20; a reversing fixing assembly, which is detachably connected between the first connecting member 200 and the second connecting member 300, and the reversing fixing assembly has a first mounting position and a second mounting position relative to the mounting body 100, and the first mounting position and the second mounting position are symmetrical about the center of the first axis.

[0031] When the above unlocking transmission assembly is used to switch the working rotation direction of the handle 20, the reversing fixing assembly is used to separate the first connecting member 200 and the second connecting member 300. At this time, the handle 20 drives the second connecting member 300 to rotate 180° relative to the first connecting member 200. The reversing fixing assembly is switched from one of the first installation position and the second installation position to the other, and then the first connecting member 200 and the second connecting member 300 are connected again to conveniently realize the reversal of the handle 20, thereby improving versatility and convenience of use.

[0032] See also Figure 3 and Figure 4 In some embodiments of the present invention, the reversing fixing assembly includes a first mounting hole 410 and a second mounting hole 420 that are symmetrical about the first axis, a threaded through hole 430 corresponding to the first mounting hole 410 or the second mounting hole 420, and a locking screw 440 adapted to the threaded through hole 430; the first mounting hole 410 and the second mounting hole 420 are arranged on the first connecting member 200, and the threaded through hole 430 is arranged on the second connecting member 300, or the first mounting hole 410 and the second mounting hole 420 are arranged on the second connecting member 300, and the threaded through hole 430 is arranged on the first connecting member 200. In which, in this embodiment, the first mounting hole 410 and the second mounting hole 420 are both provided on the first connecting member 200, and the threaded through hole 430 is provided on the second connecting member 300. When the reversing fixing assembly is in the first mounting position, the threaded through hole 430 is arranged opposite to the first mounting hole 410, and the locking screw 440 passes through the first mounting hole 410 and is connected to the threaded through hole 430. The reversing fixing assembly is in the first mounting position. At this time, the working direction of the handle 20 is suitable for people who are accustomed to using their right hand; when the locking screw 440 is removed, the user rotates the handle 20 180° and keeps the first connecting member 200 fixed relative to the mounting body 100. At this time, the threaded through hole 430 and the second mounting hole 420 are arranged opposite to each other, and the locking screw 440 passes through the second mounting hole 420 and is connected to the threaded through hole 430. The reversing fixing assembly is in the second mounting position. At this time, the working direction of the handle 20 is suitable for people who are accustomed to using their left hand. The above-mentioned reversing fixing assembly has a simple operation step to realize the reversal of the handle 20, has a simple structure and low cost. Of course, in other embodiments, the combination of the threaded through hole 430 and the locking screw 440 can also be replaced by a positioning pin and a pin hole tightly matched with the positioning pin.

[0033] See also Figures 3 to 5In some embodiments of the present invention, the first mounting hole 410 and the second mounting hole 420 are provided on the first connecting member 200, the threaded through hole 430 is provided on the second connecting member 300, and the mounting body 100 is provided with a torsion spring member 500 acting on the second connecting member 300. The two cantilever arms 510 of the torsion spring member 500 extend back to back and are substantially perpendicular to the first axis. The second connecting member 300 is provided with an abutting portion 321 capable of abutting against any of the cantilever arms 510. When the locking screw 440 is connected to the threaded through hole 430, the end of the locking screw 440 extends out of the threaded through hole 430 so as to abut against the other cantilever arm 510. It can be understood that when the locking screw 440 passes through the first mounting hole 410 or the second mounting hole 420, the locking screw 440 can abut against one of the cantilever arms 510 of the torsion spring component 500, and the abutting portion 321 and the locking screw 440 are arranged face to face to abut against the other cantilever arm 510 of the torsion spring component 500. Regardless of whether the reversing fixing assembly is in the first mounting position or the second mounting position, regardless of whether the handle 20 rotates clockwise or counterclockwise, the torsion spring component 500 can drive the second connecting member 300 and the handle 20 to rotate together and reset to the original angular position, thereby not affecting the normal reset rotation of the handle 20 while satisfying the reversal of the handle 20.

[0034] See also Figures 3 to 5 In some embodiments of the present invention, the first connecting member 200 includes a first sleeve 210 and a first flange 220 provided at one end of the first sleeve 210, and the second connecting member 300 includes a second sleeve 310 and a second flange 320 provided at one end of the second sleeve 310. The first sleeve 210 and the second sleeve 310 are respectively used to connect the clutch rod 10 and the handle 20. The second flange 320 is fitted with the first flange 220. The first mounting hole 410 and the second mounting hole 420 are provided through the first flange 220. The threaded through hole 430 is provided through the second flange 320. The first sleeve 210 is provided with a first wire-passing channel 211, and the second sleeve 310 is provided with a second wire-passing channel 311 connected to the first wire-passing channel 211. Generally speaking, an identification module is provided on the handle 20, and the identification module needs to be connected to the electric clutch mechanism of the lock through wires. The wires can pass through the first wire channel 211 and the second wire channel 311 to electrically connect the identification module and the electric clutch mechanism together. The first flange 220 and the second flange 320 are fitted together and fixed together by the locking screws 440, thereby achieving a stable connection while meeting the layout requirements of the wires.

[0035] See also Figure 3 and Figure 4In some embodiments of the present invention, the first sleeve 210 and the second sleeve 310 are both cylindrical and coaxially arranged with the first axis. The mounting body 100 is a housing assembly, and the housing assembly includes a cavity for accommodating the first flange 220 and the second flange 320. The housing assembly defines a first through-hole for rotation of the first sleeve 210 and a second through-hole for rotation of the second sleeve 310. The first sleeve 210 and the second sleeve 310 extend out of the cavity through the first through-hole and the second through-hole, respectively. One end of each of the first and second wire-passing channels 211 and 311 extends out of the housing assembly. The first sleeve 210 rotates relative to the first through-hole to enable the first connector 200 to rotate relative to the mounting body 100, and the second sleeve 310 rotates relative to the second through-hole to enable the second connector 300 to rotate relative to the mounting body 100. This facilitates simplifying the structure of the unlocking transmission assembly. The housing assembly can enclose most of the unlocking transmission assembly's structure, preventing external factors from affecting its normal operation.

[0036] In some embodiments of the present invention, the housing assembly is provided with an angle limiting mechanism for limiting the rotation angles of the first flange 220 and the second flange 320. It is understood that when the locking screw 440 is removed from the threaded through-hole 430, the second connector 300 can rotate relative to the first connector 200 about the first axis. If the first connector 200 also rotates relative to the housing assembly, it is likely to cause excessive twisting of the wires passing through the first and second wire passages 211, 311, and thus breakage of the wires. The provision of the angle limiting mechanism can prevent this from occurring.

[0037] See also Figures 3 to 5 In some embodiments of the present invention, the angle limiting mechanism includes a torsion spring 500 disposed within the cavity. The two cantilever arms 510 of the torsion spring 500 extend in opposite directions and are substantially perpendicular to the first axis. The second flange 320 is formed with an abutment portion 321 that can abut against any of the cantilever arms 510 to limit the rotation angle of the second flange 320. It should be noted that the abutment portion 321 abutting against any of the cantilever arms 510 of the torsion spring 500 can limit the rotation angle of the second flange 320 and also achieve a rotational reset function for the second connecting member 300.

[0038] See also Figure 3In some embodiments of the present invention, the angle limiting mechanism includes a first limiting portion 221 and a second limiting portion 222 provided on the surface of the first flange 220 and spaced apart circumferentially around the first axis. A blocking portion 123 is provided on the inner wall of the housing assembly, located between the first limiting portion 221 and the second limiting portion 222. When the first flange 220 rotates about the first sleeve 210, the blocking portion 123 can abut against the first limiting portion 221 or the second limiting portion 222 to limit the rotation angle of the first flange 220. By limiting the rotation angle of the first flange 220 relative to the housing assembly, the first flange 220 is prevented from experiencing a large angular displacement, thereby preventing excessive twisting of the wires passing through the first and second wire passages 211 and 311.

[0039] See also Figure 1 and Figure 3 In some embodiments of the present invention, the housing assembly includes a rectangular bottom box 110 with an opening and a cover 120 for closing the opening of the rectangular bottom box 110. Positioning protrusions 111 are provided at the four corners of the open edge of the rectangular bottom box 110. Positioning notches 121 corresponding to the positioning protrusions 111 are provided at the four corners of the cover 120. An inserting plate 122 is provided at the upper end of the cover 120, projecting toward the interior of the cavity along its thickness direction. A slot 112 is provided on the upper side plate of the rectangular bottom box 110 to cooperate with the inserting plate 122. The two side edges of the middle and lower portion of the cover 120 are connected to the rectangular bottom box 110 via threaded fasteners. The inserting plate 122 is inserted into the slot 112, and the four positioning notches 121 are aligned with the four positioning protrusions 111 to achieve quick assembly between the rectangular bottom box 110 and the cover 120. Specifically, a clearance opening is respectively opened at the position corresponding to the first mounting hole 410 and the second mounting hole 420 on the surface cover 120, and the head of the locking screw 440 can be moved outward from the clearance opening.

[0040] In some embodiments of the present invention, the housing cavity is provided with a mounting position for an electric clutch mechanism below the first flange 220 and the second flange 320. The first connector 200 and the second connector 300 are both detachably connected to the housing assembly. It should be noted that the housing cavity has a reserved mounting position for the electric clutch mechanism. In this case, the first connector 200 and the second connector 300 can be connected or disconnected within the housing assembly by simply replacing the first connector 200 and the second connector 300 and removing the unlocking transmission assembly.

[0041] See also Figure 2The present invention also discloses a lock that includes the aforementioned unlocking transmission assembly. When the lock that utilizes the unlocking transmission assembly requires switching the operating rotational direction of the handle 20, the first connecting member 200 and the second connecting member 300 are separated by the reversing fixing assembly. The handle 20 then drives the second connecting member 300 to rotate 180° relative to the first connecting member 200. The reversing fixing assembly then reconnects the first connecting member 200 and the second connecting member 300, thereby conveniently reversing the direction of the handle 20 and improving versatility and ease of use.

[0042] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0043] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An unlocking transmission assembly, characterized in that: include: Installing the main body (100); A first connecting member (200) is rotatably disposed on the mounting body (100) around a first axis, and the first connecting member (200) is used to connect to the clutch rod (10); a second connecting member (300) rotatably disposed on the mounting body (100) around the first axis, the second connecting member (300) being used to connect to the handle (20); A reversing fixing assembly is detachably connected between the first connecting member (200) and the second connecting member (300), and the reversing fixing assembly has a first installation position and a second installation position relative to the installation body (100), and the first installation position and the second installation position are symmetrical about the center of the first axis.

2. An unlocking transmission assembly according to claim 1, characterized in that: The reversing fixing assembly comprises a first mounting hole (410) and a second mounting hole (420) that are symmetrical about the first axis, a threaded through hole (430) corresponding to the first mounting hole (410) or the second mounting hole (420), and a locking screw (440) adapted to the threaded through hole (430); the first mounting hole (410) and the second mounting hole (420) are provided on the first connecting member (200), and the threaded through hole (430) is provided on the second connecting member (300); or the first mounting hole (410) and the second mounting hole (420) are provided on the second connecting member (300), and the threaded through hole (430) is provided on the first connecting member (200).

3. An unlocking transmission assembly according to claim 2, characterized in that: The first mounting hole (410) and the second mounting hole (420) are provided on the first connecting member (200), the threaded through hole (430) is provided on the second connecting member (300), the mounting body (100) is provided with a torsion spring member (500) acting on the second connecting member (300), the two cantilever arms (510) of the torsion spring member (500) are extended in opposite directions and are substantially perpendicular to the first axis, the second connecting member (300) is provided with an abutting portion (321) capable of abutting against any of the cantilever arms (510), and when the locking screw (440) is connected to the threaded through hole (430), the end of the locking screw (440) extends out of the threaded through hole (430) so as to abut against the other cantilever arm (510).

4. The unlocking transmission assembly according to claim 2, characterized in that: The first connecting member (200) includes a first sleeve (210) and a first flange (220) provided at one end of the first sleeve (210); the second connecting member (300) includes a second sleeve (310) and a second flange (320) provided at one end of the second sleeve (310); the first sleeve (210) and the second sleeve (310) are respectively used to connect the clutch rod (10) and the handle (20); the second flange (320) is fitted with the first flange (220); the first mounting hole (410) and the second mounting hole (420) are provided through the first flange (220); the threaded through hole (430) is provided through the second flange (320); a first wire passage (211) is provided in the first sleeve (210); and a second wire passage (311) connected to the first wire passage (211) is provided in the second sleeve (310).

5. The unlocking transmission assembly according to claim 4, characterized in that: The first sleeve (210) and the second sleeve (310) are both cylindrical and coaxially arranged with the first axis. The installation body (100) is a shell assembly. The interior of the shell assembly is provided with a cavity for accommodating the first flange (220) and the second flange (320). The shell assembly is provided with a first through hole for the first sleeve (210) to rotate and a second through hole for the second sleeve (310) to rotate. The first sleeve (210) and the second sleeve (310) extend out of the cavity from the first through hole and the second through hole respectively, and one end of the first wire-passing channel (211) and the second wire-passing channel (311) both extend out of the shell assembly.

6. The unlocking transmission assembly according to claim 5, characterized in that: An angle limiting mechanism is provided in the housing assembly for limiting the rotation angles of the first flange (220) and the second flange (320) respectively.

7. The unlocking transmission assembly according to claim 6, characterized in that: The angle limiting mechanism includes a torsion spring member (500) arranged in the cavity, wherein two cantilever arms (510) of the torsion spring member (500) extend in opposite directions and are substantially perpendicular to the first axis, and the second flange (320) is formed with an abutting portion (321) capable of abutting against any of the cantilever arms (510) to limit the rotation angle of the second flange (320).

8. The unlocking transmission assembly according to claim 6, characterized in that: The angle limiting mechanism comprises a first limiting portion (221) and a second limiting portion (222) which are provided on the surface of the first flange (220) and are arranged at intervals around the first axis. The inner wall of the housing assembly is provided with a blocking portion (123) located between the first limiting portion (221) and the second limiting portion (222). When the first flange (220) rotates around the first sleeve (210), the blocking portion (123) can abut against the first limiting portion (221) or the second limiting portion (222) to limit the rotation angle of the first flange (220).

9. The unlocking transmission assembly according to claim 5, characterized in that: The shell assembly comprises a rectangular bottom box (110) with an opening and a cover (120) for closing the opening of the rectangular bottom box (110); positioning protrusions (111) are provided at the four corners of the opening edge of the rectangular bottom box (110); positioning notches (121) corresponding to the positioning protrusions (111) are provided at the four corners of the cover (120); an inserting plate portion (122) is provided at the upper end of the cover (120) protruding toward the interior of the cavity along its thickness direction; a slot (112) is provided on the upper side plate of the rectangular bottom box (110) that matches the inserting plate portion (122); and both side edges of the middle and lower part of the cover (120) are connected to the rectangular bottom box (110) by threaded fasteners.

10. A lock, characterized in that: The invention comprises an unlocking transmission assembly according to any one of claims 1 to 9.

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