A universal door lock structure adaptable to different lock cores

Abstract

The present invention relates to the technical field of automobile door locks, and specifically to a universal door lock structure that can adapt to different lock cores, including a car shell and a handle installed on the car shell, the car shell is provided with a mounting hole, the mounting hole is arranged on one side of the handle, a lock core body is installed in the mounting hole, and an adjustment component for assisting the fixing of the lock core body is also arranged in the inner wall of the car shell, and the adjustment component is provided with a plurality of groups of first fixing components and second fixing components for fixing lock core bodies of different shapes. This device can easily adapt to lock core bodies of various shapes such as round and rectangular shapes through an innovative design of the adjustment component, breaking the strict restrictions of traditional door locks on the shape of the lock core. This feature not only simplifies the replacement process of the door lock, reduces the maintenance cost of the user, and improves the market adaptability and competitiveness of the product, but also ensures the stable installation of the lock core body through a multi-level fixing mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of automobile door locks, in particular to a universal door lock structure adaptable to different lock cores. Background Art

[0002] Car door locks refer to devices installed on car doors for locking and unlocking. Car door locks play a vital role in protecting the safety of passengers and property in the car. With the continuous development of modern technology, modern car door locks not only have traditional mechanical locking functions, but also incorporate sophisticated electronic control systems and intelligent sensing technology to improve the overall safety of the vehicle.

[0003] However, the design of traditional door locks is often highly dependent on lock cores of specific shapes and sizes, especially round or rectangular lock cores. This strict shape restriction requires users to strictly select the appropriate door lock shape when replacing door locks. If they encounter a lock core with a mismatched shape, they will need to replace the entire door lock system, which not only increases the replacement cost, but also prolongs the replacement time and reduces the user experience.

[0004] Therefore, those skilled in the art provide a universal door lock structure that can be adapted to different lock cores to solve the problems raised in the above background technology. Summary of the invention

[0005] The object of the present invention is to provide a universal door lock structure that can be adapted to different lock cores, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A universal door lock structure adaptable to different lock cores includes a vehicle shell and a handle mounted on the vehicle shell, the vehicle shell is provided with a mounting hole, the mounting hole is arranged on one side of the handle, a lock core body is mounted in the mounting hole, an adjustment component for assisting in fixing the lock core body is also arranged in the inner wall of the vehicle shell, and the adjustment component is provided with multiple groups of first fixing components and second fixing components for fixing lock core bodies of different shapes.

[0008] Preferably: the adjusting assembly includes a rotating disk, the rotating disk is arranged in the inner wall of one side of the vehicle shell, a shielding cover for shielding the rotating disk is arranged on the side wall of the vehicle shell, a transmission worm is fixedly connected to one end of the rotating disk close to the interior of the vehicle shell, the transmission worm is rotatably connected to the interior of the vehicle shell, a thread groove matching the thread on the transmission worm is arranged inside the vehicle shell, a first transmission gear is arranged above the transmission worm, and the first transmission gear is rotatably connected to the inner wall of the vehicle shell, and the first transmission gear is meshed with the transmission worm.

[0009] Preferably, a connecting hole is provided on the first transmission gear, and the connecting hole is connected to the mounting hole on the vehicle shell.

[0010] Preferably, a plurality of evenly distributed sliding grooves are provided on a side of the adjustment component away from the mounting hole, and a plurality of the first fixing components are respectively arranged in adjacent sliding grooves.

[0011] Preferably: the first fixing assembly comprises a sliding shaft, the sliding shaft is slidably connected to the sliding groove, a limiting ring is installed at one end of the sliding shaft away from the sliding groove, an auxiliary groove at the same position as the sliding groove is opened in the inner wall of the vehicle shell, a side of the limiting ring away from the first transmission gear is slidably connected to the auxiliary groove through a connecting shaft, and an anti-slip pad is arranged on one side of the limiting ring close to the connecting hole;

[0012] A reinforcing rod is also arranged on the sliding shaft, and a side of the reinforcing rod close to the limiting ring is fixed to the limiting ring.

[0013] Preferably, a synchronization ring is further arranged inside the first transmission gear, and the width of the synchronization ring is half of the first transmission gear, and teeth are arranged on the inner side wall of the synchronization ring.

[0014] Preferably: the second fixed assembly includes a synchronous gear assembly, the synchronous gear assembly is rotatably connected to the inside of the first transmission gear, the synchronous gear assembly includes a second transmission gear and a third transmission gear, and the sides of the second transmission gear and the third transmission gear that are away from each other are respectively in contact with the inner walls of both sides of the first transmission gear, a one-way bearing is provided in the second transmission gear, and the second transmission gear is meshed with teeth on the inner wall of the synchronizer ring;

[0015] The second fixed component also includes a synchronization rack, which is arranged on a side of the first transmission gear away from the synchronization ring, and is meshed with the third transmission gear. An extrusion limit plate is installed on the side of the synchronization rack close to the connecting hole, and an anti-slip pad is provided on the side of the extrusion limit plate away from the synchronization rack.

[0016] Preferably: a fixed shaft is also installed on the second transmission gear and the third transmission gear, and the ends of the two fixed shafts that are away from each other respectively pass through the two sides of the first transmission gear and extend to the outside of the first transmission gear, and the extended ends of the two fixed shafts are fixed to the inner wall of the vehicle shell, and grooves for sliding of the fixed shafts are also opened on both sides of the first transmission gear.

[0017] Preferably: an auxiliary fixing assembly is further provided on the inner wall of the mounting hole, the auxiliary fixing assembly comprises a plurality of semicircular protrusions, the plurality of semicircular protrusions are respectively provided on four sides of the inner wall of the mounting hole, each of the semicircular protrusions is slidably connected to the inside of the vehicle shell, a return spring is installed on one side of each semicircular protrusion close to the inner wall of the mounting hole, and the other ends of the plurality of return springs are fixed to the inner wall of the vehicle shell;

[0018] A fixing plate is also installed on one side of the installation hole close to the handle.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention adopts an innovative design of adjustment components, which can easily adapt to various shapes of lock core bodies such as round and rectangular, breaking the strict restrictions on the shape of the lock core of traditional door locks. This feature not only simplifies the replacement process of door locks, reduces the user's maintenance cost, but also improves the market adaptability and competitiveness of the product.

[0021] 2. The present invention ensures the stable installation of the lock core body through a multi-level fixing mechanism. Whether it is the initial cooperation between the semicircular protrusion and the return spring, or the subsequent close fit between the limit ring and the extrusion limit plate, it effectively prevents the lock core from loosening or falling off, greatly enhancing the anti-pry performance of the door lock. At the same time, the application of the anti-slip pad further improves the stability of the fixation, providing users with a more secure use experience.

[0022] 3. During installation, the present invention can easily complete the installation and fixation of the lock core through simple tool operation. The ingenious design of the adjustment component allows the user to flexibly adjust the fixing method according to the shape of the lock core without complicated operating steps or professional skills. In addition, the setting of the shielding cover not only protects the adjustment component from external interference, but also improves the overall aesthetics of the door lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the first viewing angle of the present invention;

[0024] Figure 2 It is a schematic diagram of the structure of the upper part of the vehicle shell in the present invention;

[0025] Figure 3 It is a partial structural schematic diagram of the adjusting component in the vehicle shell of the present invention;

[0026] Figure 4 It is a schematic diagram of the structure of the regulating component in the present invention;

[0027] Figure 5 It is a schematic diagram of the structure inside the regulating component of the present invention;

[0028] Figure 6is a schematic structural diagram of the second fixing assembly in the present invention;

[0029] Figure 7 is a schematic diagram of a synchronizer ring and a second fixed assembly in the present invention;

[0030] Figure 8 It is a schematic diagram of part of the structure in the mounting hole of the present invention;

[0031] Fig. 9 It is a schematic diagram of the structure of the auxiliary fixing assembly in the present invention.

[0032] In the figure: 1. body shell; 11. handle; 12. shielding cover; 13. mounting hole; 14. fixing plate; 15. semicircular protrusion; 16. reset spring; 2. lock core body; 3. adjustment assembly; 31. rotating disk; 32. transmission worm; 33. first transmission gear; 34. sliding groove; 35. connecting hole; 36. synchronous ring; 4. first fixed assembly; 41. sliding shaft; 42. limit ring; 43. reinforcing rod; 5. second fixed assembly; 51. synchronous gear assembly; 501. second transmission gear; 502. third transmission gear; 52. synchronous rack; 53. extrusion limit plate; 54. fixed shaft. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] For example, see Figure 1-9A universal door lock structure adaptable to different lock cores includes a vehicle shell 1 and a handle 11 installed on the vehicle shell 1. The vehicle shell 1 is provided with a mounting hole 13, which is arranged on one side of the handle 11. A lock core body 2 is installed in the mounting hole 13. An adjusting component 3 for assisting the fixing of the lock core body 2 is also arranged in the inner wall of the vehicle shell 1. The adjusting component 3 is provided with multiple groups of first fixing components 4 and second fixing components 5 for fixing lock core bodies 2 of different shapes. The adjusting component 3 includes a rotating disk 31, which is arranged in the inner wall of one side of the vehicle shell 1. A shielding cover 12 for shielding the rotating disk 31 is arranged on the side wall of the vehicle shell 1. A transmission worm 32 is fixedly connected to one end of the rotating disk 31 close to the interior of the vehicle shell 1. The transmission worm 32 is rotatably connected to the interior of the vehicle shell 1. A thread groove matching the thread on the transmission worm 32 is arranged in the interior of the vehicle shell 1. A first transmission gear is arranged above the transmission worm 32. 33, and the first transmission gear 33 is rotatably connected to the inner wall of the vehicle shell 1, the first transmission gear 33 is meshed with the transmission worm 32, a connecting hole 35 is also provided on the first transmission gear 33, and the connecting hole 35 is connected to the mounting hole 13 on the vehicle shell 1, a plurality of evenly distributed sliding grooves 34 are provided on the side of the adjustment component 3 away from the mounting hole 13, a plurality of first fixing components 4 are respectively arranged in adjacent sliding grooves 34, an auxiliary fixing component is also provided on the inner wall of the mounting hole 13, the auxiliary fixing component includes a plurality of semicircular protrusions 15, the plurality of semicircular protrusions 15 are respectively arranged on the four sides of the inner wall of the mounting hole 13, each semicircular protrusion 15 is slidably connected to the inside of the vehicle shell 1, a return spring 16 is installed on one side of each semicircular protrusion 15 close to the inner wall of the mounting hole 13, the other ends of the plurality of return springs 16 are fixed to the inner wall of the vehicle shell 1, and a fixing plate 14 is also installed on the side of the mounting hole 13 close to the handle 11;

[0036] When the lock core body 2 needs to be fixed, the fixing plate 14 is first opened to expose the mounting hole 13, and the lock core body 2 is inserted into the mounting hole 13. When inserted, the lock core body 2 contacts the multiple semicircular protrusions 15 in the mounting hole 13, and the multiple semicircular protrusions 15 slide toward the inside of the vehicle shell 1 under the push of the mounting hole 13. When the lock core body 2 is inserted into a suitable position, the lock core body 2 is initially fixed under the action of the multiple semicircular protrusions 15 and the return spring 16, which is convenient for subsequent operations;

[0037] After the lock core body 2 is inserted, the shielding cover 12 on one side of the vehicle shell 1 is opened, and the adjusting component 3 is rotated according to the shape of the lock core body 2. When the lock core body 2 is round, a tool is used to rotate the rotating disk 31 so that the rotating disk 31 drives the transmission worm 32 to rotate, and the first transmission gear 33 meshing with the transmission worm 32 rotates clockwise. When the first transmission gear 33 rotates clockwise, the multiple first fixing components 4 on the first transmission gear 33 begin to move along the sliding groove 34 in a direction close to each other, and the lock core body 2 is fixed by the multiple first fixing components 4.

[0038] For example 2, please refer to Figure 1-4 The first fixing assembly 4 includes a sliding shaft 41, which is slidably connected to the sliding groove 34. A limiting ring 42 is installed at one end of the sliding shaft 41 away from the sliding groove 34. An auxiliary groove at the same position as the sliding groove 34 is opened in the inner wall of the vehicle shell 1. The side of the limiting ring 42 away from the first transmission gear 33 is slidably connected to the auxiliary groove through a connecting shaft. An anti-slip pad is provided on the side of the limiting ring 42 close to the connecting hole 35. A reinforcing rod 43 is also provided on the sliding shaft 41. The side of the reinforcing rod 43 close to the limiting ring 42 is fixed to the limiting ring 42;

[0039] When the first gear 33 is in the locked state, the locking nut 31 is engaged with the locking nut 32 and the locking nut 33 is engaged with the locking nut 31. When the first gear 33 is in the locked state, the locking nut 31 is engaged with the locking nut 32 and the locking nut 33 is engaged with the locking nut 31.

[0040] For example 3, please refer to Figure 1-9The first transmission gear 33 is further provided with a synchronizer ring 36 inside, and the width of the synchronizer ring 36 is half of the first transmission gear 33, and teeth are provided on the inner side wall of the synchronizer ring 36. The second fixed component 5 includes a synchronizer gear component 51, and the synchronizer gear component 51 is rotatably connected to the inside of the first transmission gear 33. The synchronizer gear component 51 includes a second transmission gear 501 and a third transmission gear 502, and the sides of the second transmission gear 501 and the third transmission gear 502 that are away from each other are respectively in contact with the inner walls of both sides of the first transmission gear 33, and a one-way bearing is provided in the second transmission gear 501. The second transmission gear 501 is meshed with the teeth on the inner side wall of the synchronizer ring 36. The second fixed component 5 also includes The synchronous rack 52 is arranged on the side of the first transmission gear 33 away from the synchronous ring 36. The synchronous rack 52 is meshed with the third transmission gear 502. An extrusion limit plate 53 is installed on the side of the synchronous rack 52 close to the connecting hole 35. An anti-skid pad is arranged on the side of the extrusion limit plate 53 away from the synchronous rack 52. The second transmission gear 501 and the third transmission gear 502 are also installed with fixed shafts 54. The ends of the two fixed shafts 54 away from each other respectively penetrate the two sides of the first transmission gear 33 and extend to the outside of the first transmission gear 33. The extended ends of the two fixed shafts 54 are fixed to the inner wall of the vehicle shell 1. Notches for sliding of the fixed shafts 54 are also provided on both sides of the first transmission gear 33.

[0041] When the rectangular lock core body 2 needs to be fixed, the rectangular lock core body 2 is first inserted through the mounting hole 13, and the lock core body 2 is initially fixed by the auxiliary fixing assembly on the mounting hole 13. After fixing, the rotating disk 31 is rotated with a tool to make the rotating disk 31 drive the transmission screw 32 to rotate, and the first transmission gear 33 is driven to rotate counterclockwise under the action of the transmission worm 32. When the first transmission gear 33 rotates counterclockwise, the multiple sliding grooves 34 on the first transmission gear 33 first push the sliding shaft 41 and the limit ring 42 to move in a direction away from each other, so as to prevent the limit ring 42 from blocking the installation of the lock core body 2. At the same time, when the first transmission gear 33 rotates counterclockwise, the second fixing assembly 5 in the first transmission gear 33 gradually extends outward, and the rectangular lock core body 2 is fixed by multiple extrusion limit plates 53;

[0042] When the first transmission gear 33 rotates counterclockwise, the synchronizer ring 36 in the first transmission gear 33 rotates synchronously with the first transmission gear 33, and the multiple synchronizer gear assemblies 51 meshing with the synchronizer ring 36 rotate synchronously counterclockwise under the action of the synchronizer ring 36, and the multiple synchronizer racks 52 drive the extrusion limit plates 53 to move toward the direction close to the connecting hole 35, gradually fixing the rectangular lock core body 2, and continue to rotate until the multiple extrusion limit plates 53 are completely fixed to the lock core body 2, then stop rotating, and close the shielding cover 12 to seal the rotating disk 31;

[0043] By setting the fixed shaft 54 ​​on the synchronous gear assembly 51, when the first transmission gear 33 rotates, the synchronous gear assembly 51 can be kept stationary, so as to prevent the synchronous gear assembly 51 from rotating synchronously with the first transmission gear 33;

[0044] By setting the second transmission gear 501 and the third transmission gear 502, when the first transmission gear 33 rotates clockwise to fix the circular lock core body 2, the first transmission gear 33 drives the synchronous ring 36 to rotate, and the second transmission gear 501 meshing with the synchronous ring 36 rotates synchronously under the drive of the synchronous ring 36, but under the action of the one-way bearing in the second transmission gear 501, the second transmission gear 501 cannot drive the third transmission gear 502 to rotate. Therefore, when the first transmission gear 33 rotates clockwise, it will not drive the synchronous rack 52 and the extrusion limit plate 53 to move. When the first transmission gear 33 rotates counterclockwise, the synchronous ring 36 drives the second transmission gear 501 to rotate counterclockwise. At this time, the second transmission gear 501 can drive the third transmission gear 502 to rotate, so that the synchronous rack 52 and the extrusion limit plate 53 move, and the rectangular lock core body 2 is fixed.

[0045] The working principle of the present invention is as follows: when the lock core body 2 needs to be fixed, the fixing plate 14 is first opened to expose the mounting hole 13, and the lock core body 2 is inserted into the mounting hole 13. When inserted, the lock core body 2 contacts the multiple semicircular protrusions 15 in the mounting hole 13, and the multiple semicircular protrusions 15 slide toward the inside of the vehicle shell 1 under the push of the mounting hole 13. When the lock core body 2 is inserted into a suitable position, the lock core body 2 is initially fixed under the action of the multiple semicircular protrusions 15 and the return spring 16, which is convenient for subsequent operations;

[0046] After the lock core body 2 is inserted, the shielding cover 12 on one side of the vehicle shell 1 is opened, and the adjusting assembly 3 is rotated according to the shape of the lock core body 2. When the lock core body 2 is round, a tool is used to rotate the rotating disk 31, so that the rotating disk 31 drives the transmission worm 32 to rotate, so that the first transmission gear 33 meshing with the transmission worm 32 rotates clockwise. When the first transmission gear 33 rotates clockwise, under the push of the sliding groove 34, the multiple sliding shafts 41 drive the limiting rings 42 to move toward the direction close to the connecting hole 35. When the first transmission gear 33 continues to rotate, the multiple limiting rings 42 gradually contact the outer surface of the lock core body 2 until they are completely abutted against the outer surface of the lock core body 2. The lock core body 2 is fixed by the multiple limiting rings 42. At this time, the rotating disk 31 cannot be rotated again, and the shielding cover 12 is closed to block the rotating disk 31.

[0047] When the rectangular lock core body 2 needs to be fixed, the rectangular lock core body 2 is first inserted through the mounting hole 13, and the lock core body 2 is initially fixed by the auxiliary fixing assembly on the mounting hole 13. After fixing, the rotating disk 31 is rotated with a tool, and the first transmission gear 33 is driven to rotate counterclockwise under the action of the transmission worm 32. When the first transmission gear 33 rotates counterclockwise, the multiple sliding grooves 34 on the first transmission gear 33 first push the sliding shaft 41 and the limit ring 42 to move in a direction away from each other, so as to prevent the limit ring 42 from blocking the installation of the lock core body 2;

[0048] When the first transmission gear 33 rotates counterclockwise, the synchronizer ring 36 in the first transmission gear 33 rotates synchronously with the first transmission gear 33, and the multiple synchronizer gear assemblies 51 meshing with the synchronizer ring 36 rotate synchronously counterclockwise under the action of the synchronizer ring 36, and the multiple synchronizer racks 52 drive the extrusion limit plates 53 to move toward the direction close to the connecting hole 35, gradually fixing the rectangular lock core body 2, and continue to rotate until the multiple extrusion limit plates 53 are completely fixed to the lock core body 2, then stop rotating, and close the shielding cover 12 to seal the rotating disk 31;

[0049] When the first transmission gear 33 rotates clockwise to fix the circular lock core body 2, the first transmission gear 33 drives the synchronous ring 36 to rotate, and the second transmission gear 501 meshing with the synchronous ring 36 rotates synchronously under the drive of the synchronous ring 36, but under the action of the one-way bearing in the second transmission gear 501, the second transmission gear 501 cannot drive the third transmission gear 502 to rotate. Therefore, when the first transmission gear 33 rotates clockwise, it will not drive the synchronous rack 52 and the extrusion limit plate 53 to move. When the first transmission gear 33 rotates counterclockwise, the synchronous ring 36 drives the second transmission gear 501 to rotate counterclockwise. At this time, the second transmission gear 501 can drive the third transmission gear 502 to rotate, so that the synchronous rack 52 and the extrusion limit plate 53 move to fix the rectangular lock core body 2;

[0050] The anti-skid pads provided on the limiting ring 42 and the extrusion limiting plate 53 can further increase the stability of the fixation with the lock core body 2, making it more stable during subsequent use.

[0051] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A universal door lock structure adaptable to different lock cores, comprising a vehicle shell (1) and a handle (11) mounted on the vehicle shell (1), characterized in that: The vehicle shell (1) is provided with a mounting hole (13), the mounting hole (13) being arranged on one side of the handle (11), a lock core body (2) being installed in the mounting hole (13), an adjustment component (3) for assisting in fixing the lock core body (2) being also arranged in the inner wall of the vehicle shell (1), the adjustment component (3) being provided with a plurality of groups of first fixing components (4) and second fixing components (5) for fixing lock core bodies (2) of different shapes; The adjustment assembly (3) comprises a rotating disk (31), the rotating disk (31) being arranged in an inner wall of one side of the vehicle shell (1), a shielding cover (12) for shielding the rotating disk (31) being arranged on the side wall of the vehicle shell (1), a transmission worm (32) being fixedly connected to one end of the rotating disk (31) close to the interior of the vehicle shell (1), the transmission worm (32) being rotationally connected to the interior of the vehicle shell (1), a thread groove matching the thread on the transmission worm (32) being arranged in the interior of the vehicle shell (1), a first transmission gear (33) being arranged above the transmission worm (32), and the first transmission gear (33) being rotationally connected to the inner wall of the vehicle shell (1), and the first transmission gear (33) being meshed with the transmission worm (32); The first transmission gear (33) is also provided with a communication hole (35), and the communication hole (35) is connected to the mounting hole (13) on the vehicle shell (1); A plurality of evenly distributed sliding grooves (34) are provided on a side of the adjustment component (3) away from the mounting hole (13), and a plurality of the first fixing components (4) are respectively arranged in adjacent sliding grooves (34); The first fixing assembly (4) comprises a sliding shaft (41), the sliding shaft (41) being slidably connected to the sliding groove (34), and a limiting ring (42) being installed at one end of the sliding shaft (41) away from the sliding groove (34); An auxiliary groove having the same position as the sliding groove (34) is provided in the inner wall of the vehicle shell (1); a side of the limiting ring (42) away from the first transmission gear (33) is slidably connected to the auxiliary groove via a connecting shaft; and a side of the limiting ring (42) close to the connecting hole (35) is provided with an anti-slip pad; A reinforcing rod (43) is also provided on the sliding shaft (41), and a side of the reinforcing rod (43) close to the limiting ring (42) is fixed to the limiting ring (42).

2. A universal door lock structure adaptable to different lock cores according to claim 1, characterized in that: A synchronizing ring (36) is also provided inside the first transmission gear (33), and the width of the synchronizing ring (36) is half of the width of the first transmission gear (33), and teeth are provided on the inner side wall of the synchronizing ring (36).

3. A universal door lock structure adaptable to different lock cores according to claim 2, characterized in that: The second fixed component (5) comprises a synchronous gear component (51), the synchronous gear component (51) is rotatably connected to the inside of the first transmission gear (33), the synchronous gear component (51) comprises a second transmission gear (501) and a third transmission gear (502), and the sides of the second transmission gear (501) and the third transmission gear (502) that are away from each other are respectively in contact with the inner walls of both sides of the first transmission gear (33), a one-way bearing is provided in the second transmission gear (501), and the second transmission gear (501) is meshed with teeth on the inner wall of the synchronous ring (36); The second fixing assembly (5) further comprises a synchronous rack (52), the synchronous rack (52) being arranged on a side of the first transmission gear (33) away from the synchronous ring (36), the synchronous rack (52) being meshed with the third transmission gear (502), an extrusion limit plate (53) being installed on a side of the synchronous rack (52) close to the connecting hole (35), and an anti-slip pad being arranged on a side of the extrusion limit plate (53) away from the synchronous rack (52).

4. A universal door lock structure adaptable to different lock cores according to claim 3, characterized in that: The second transmission gear (501) and the third transmission gear (502) are both mounted with fixed shafts (54), and the ends of the two fixed shafts (54) that are away from each other respectively penetrate the two sides of the first transmission gear (33) and extend to the outside of the first transmission gear (33), and the extended ends of the two fixed shafts (54) are both fixed to the inner wall of the vehicle shell (1), and notches for the fixed shafts (54) to slide are also provided on both sides of the first transmission gear (33).

5. The universal door lock structure adaptable to different lock cores according to claim 1, characterized in that: An auxiliary fixing assembly is also provided on the inner wall of the mounting hole (13), the auxiliary fixing assembly comprising a plurality of semicircular protrusions (15), the plurality of semicircular protrusions (15) being respectively provided on four sides of the inner wall of the mounting hole (13), each of the semicircular protrusions (15) being slidably connected to the interior of the vehicle shell (1), a return spring (16) being provided on one side of each semicircular protrusion (15) close to the inner wall of the mounting hole (13), the other ends of the plurality of return springs (16) being fixed to the inner wall of the vehicle shell (1); A fixing plate (14) is also installed on a side of the mounting hole (13) close to the handle (11).

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