Locomotive ignition lock

Abstract

The utility model discloses a locomotive ignition lock which comprises a lock shell and a lock cylinder, the lock cylinder is rotationally arranged in the lock shell, a blade hole is formed in the lock cylinder, a blade groove for containing a blade is formed in the lock shell, a rotor switch is connected to the rear end of the lock shell in a clamped mode, a rotating shaft is arranged in the lock shell, a driving piece and a plunger latch are arranged in the lock shell, the driving piece is connected with the plunger latch, and a positioning boss is arranged on the inner wall of the lock shell. The lock cylinder and the rotating shaft are integrally formed, a positioning block is arranged at the connecting part of the lock cylinder and the rotating shaft and can abut against the positioning boss, the rotating shaft comprises a transmission part, a driving part and a connecting part which are integrally arranged, the two ends of the connecting part are connected with the transmission part and the driving part respectively, and the transmission part, the lock cylinder and the driving part are coaxially arranged. And the connecting part, the driving part and the transmission part are eccentrically arranged. According to the technical scheme, various inconveniences caused by limiting mechanisms such as bolts in the prior art are solved, meanwhile, the unlocking process of the faucet lock is simplified, and the locomotive ignition lock is simple in structure and reasonable in design.

Description

Technical Field

[0001] The utility model relates to the technical field of locks, in particular to a locomotive ignition lock. Background Art

[0002] The locomotive ignition lock is a lock device specially designed and manufactured for locomotives, aiming to provide efficient and reliable safety protection. The traditional locomotive ignition lock uses a lock shell. When installing, the lock core needs to be installed in the lock shell first, and then the shaft and other parts are installed in sequence. There are many parts, low assembly efficiency, and cumbersome steps. In addition, since the lock core is movably installed in the lock shell, it is generally necessary to open a limit groove on the lock core and set a limit mechanism corresponding to the limit on the lock shell.

[0003] The Chinese invention patent with the publication number "CN104934252B" discloses a power anti-theft switch lock for electric vehicles or motorcycles, including a lock shell and a lock core, a limit mechanism is arranged between the lock shell and the lock core, the lock shell is clamped with an end cover shell, a lock faucet mechanism is arranged in the end cover shell, the lock core is connected to a rotating shaft adapted to the lock core, a dial head for opening and closing the lock faucet mechanism is arranged on the rotating shaft, an opening mechanism is also arranged on the end cover shell, and a baffle for pushing the opening mechanism is also arranged on the rotating shaft. In addition, the limit mechanism includes a gear slot arranged in the lock core and a limit screw arranged in the lock shell and partially extending into the gear slot.

[0004] The above switch lock also has the following defects:

[0005] First, the assembly of the limit mechanism is complicated. During the assembly process, assemblers often miss some parts, causing the lock cylinder to shake significantly in the lock housing and easily fall off, posing a greater risk.

[0006] Second, the limit mechanism can only provide limited locking positions, which may not meet certain special needs. In addition, since the limit screw partially extends into the gear slot, it may cause certain obstacles to the rotation of the lock core, affecting the service life of the lock.

[0007] Third, when the limit mechanism is loose, the limit function will fail, resulting in the inability to accurately limit the position of the lock cylinder, making the lock unable to be effectively locked, reducing the anti-theft performance and increasing the risk of vehicle theft. Utility Model Content

[0008] The technical problem to be solved by the utility model is to provide a locomotive ignition lock with simple structure, quick assembly and reasonable design in view of the deficiencies of the above-mentioned prior art.

[0009] To achieve the above object, the technical solution adopted by the present utility model is as follows: A locomotive ignition lock includes a lock housing and a lock core. The lock core is rotatably arranged in the lock housing. The lock core is provided with blade holes, and the lock housing is provided with blade grooves for accommodating the blades. A rotor switch is snap-connected to the rear end of the lock housing. A rotating shaft is provided in the lock housing. A driving piece and a latch are also provided in the lock housing. The driving piece is connected to the latch. A positioning boss integrally formed is provided on the inner wall of the lock housing. The lock core and the rotating shaft are integrally formed. A positioning block is provided at the connecting part of the lock core and the rotating shaft, and the positioning block can abut against the positioning boss.

[0010] Adopting the above technical solution: Compared with the prior art where a limiting device is additionally assembled, the present utility model is provided with a positioning boss integrally formed on the inner wall of the lock housing, which reduces the assembly process of the limiting device. Moreover, the lock core and the rotating shaft are integrally formed, reducing the components for fixing the rotating shaft and the lock core. A positioning block is provided at the connecting part of the lock core and the rotating shaft. When the lock core is arranged in the lock housing, the positioning block abuts against the end face of the positioning boss to achieve the positioning function, which can effectively position the lock core and prevent the lock core from detaching from the lock housing.

[0011] The above-mentioned locomotive ignition lock can be further arranged as follows: First and second limiting blocks integrally provided with the positioning boss are spaced apart at one end of the positioning boss away from the lock core. A sliding groove for the positioning block to slide is formed between the first and second limiting blocks.

[0012] Adopting the above technical solution: Through the arrangement of the first and second limiting blocks, during the assembly process of the ignition lock, the lock core and the rotating shaft are inserted into the lock housing, so that the positioning block provided at the connecting part of the lock core and the rotating shaft falls into the sliding groove between the first and second limiting blocks. Since the positioning block is limited between the two, the lock core cannot be axially pulled out of the lock housing. This structure only needs to be aligned and installed correctly during assembly, and will not affect the unlocking and rotation of the lock core during actual use. The sliding groove can be set at an angle adapted to each gear to match the unlocking function of each gear of the lock core.

[0013] The above-mentioned locomotive ignition lock can be further arranged as follows: A third limiting block is provided on the end face of the rotor switch close to the rotating shaft. Fourth limiting blocks are spaced apart along the circumferential rotation direction of the rotating shaft. The fourth limiting blocks are provided with inclined surfaces, and the third and fourth limiting blocks can abut against the rotating shaft.

[0014] Adopting the above technical solution: Through the arrangement of the third and fourth limiting blocks, when the rotor switch is fixedly connected to the lock housing, the initial position of the rotating shaft can abut against the third limiting block. When an incorrect key is inserted, the blades on the lock core are not unlocked, and the lock core cannot rotate circumferentially. Even if one tries to axially move the lock core, the third limiting block abuts against the rotating shaft, and the lock core is limited and cannot move axially. When the correct key is inserted, the lock core is unlocked. At this time, the fourth limiting block and the second limiting block cooperate with each other to rotate the rotating shaft to the top of the fourth limiting block through the inclined plane. At this time, the positioning block abuts against the second limiting block, further improving the positioning ability of the lock core and the rotating shaft.

[0015] The above-mentioned locomotive ignition lock can be further set as follows: The positioning boss is provided with a guiding notch for installing the positioning block, and the position of the guiding notch corresponds to one of the blade slots.

[0016] Adopting the above technical solution: Through the guiding notch, during the assembly process of installing the lock core and the rotating shaft into the lock housing, the positioning block can be inserted into the lock housing along the blade slot, and the positioning boss has a guiding notch at the corresponding position of the blade slot for the positioning block to move out of the blade slot to the end face of the positioning boss near the rotor switch. Then, by rotating the lock core, the positioning block falls into the sliding slot between the first limiting block and the second limiting block, realizing the positioning function of the lock core, reducing the assembly parts, simplifying the assembly process, and improving the assembly efficiency.

[0017] The above-mentioned locomotive ignition lock can be further set as follows: A plurality of positioning grooves are provided on the outer peripheral side of the lock core, and positioning protrusions corresponding to the positioning grooves are provided in the blade slots.

[0018] Adopting the above technical solution, through the mutual cooperation of the positioning grooves provided on the outer peripheral side of the lock core and the positioning protrusions provided in the blade slots, when the lock core is in the initial position, the positioning protrusions are stuck into the positioning grooves, and the lock core sleeved in the lock housing is further limited, and the lock core will not shake.

[0019] The above-mentioned locomotive ignition lock can be further set as follows: The rotating shaft includes an integrally provided transmission part, a driving part, and a connecting part. The connecting part is provided between the transmission part and the driving part and is respectively connected to the transmission part and the driving part at both ends. The transmission part is coaxially arranged with the lock core, the transmission part is coaxially arranged with the driving part, the connecting part is eccentrically arranged with the transmission part and the driving part respectively. One end of the driving part away from the lock core is connected to the rotor switch. The driving part is arranged in the switch assembly. An oval hole through which the rotating shaft can pass is provided on the driving piece, and the transmission part passes through the oval hole. The rotation of the rotating shaft can drive the driving piece to move to realize the telescopic movement of the lock bolt.

[0020] Adopting the above technical solution: Compared with the prior art in which the rotation shaft is pressed into the driving piece to drive the bolt to move telescopically, the rotation shaft provided by the present utility model includes an integrally provided transmission part, a driving part and a connecting part. The connecting part is provided between the transmission part and the driving part and is connected to the transmission part and the driving part at both ends respectively. The transmission part is coaxially arranged with the lock core and the driving part respectively, and the connecting part is eccentrically arranged with the transmission part and the driving part respectively. The rotation radius of the transmission part is larger than that of the driving part. The driving piece is arranged at the transmission part, and the hole formed in the driving piece is an oval hole. The transmission part passes through the oval hole. Compared with the multi-hole or inclined hole formed in the driving piece in the prior art, the oval hole of the driving piece of the present utility model can directly follow the telescopic movement of the transmission part. At the same time, the connecting part can abut against the driving piece to prevent the driving piece from detaching from the rotation shaft and will not affect the rotation process of the rotation shaft. The structure is simple and the assembly is fast.

[0021] The above-mentioned locomotive ignition lock can be further configured as: The driving piece is provided with a bolt hole, and one end of the bolt is provided with an annular groove. The bolt can be clamped with the bolt hole through the annular groove.

[0022] By adopting the above technical solution, the bolt is matched with the bolt hole of the driving piece through the annular groove, so that the bolt can be linked with the driving piece, greatly simplifying the structures of the driving piece and the bolt, facilitating the installation of the driving piece and the bolt on the rotation shaft, improving the assembly efficiency and saving the assembly time.

[0023] The above-mentioned locomotive ignition lock can be further configured as: At least one installation slot hole is provided on the outer wall of one end of the lock case close to the rotor switch, and an installation buckle that can be buckled with the installation slot hole extends from one end of the rotor switch close to the lock case to the lock case.

[0024] Adopting the above technical solution: Through the arrangement of the installation slot hole and the installation buckle, during the assembly process, the installation buckle extends into the installation slot hole to achieve buckling, completing the connection between the lock case and the rotor switch. The structure is simple and the assembly is convenient.

[0025] The above-mentioned locomotive ignition lock can be further configured as: A rear cover is provided at one end of the rotor switch away from the lock case, and a plurality of buckling holes are provided along the outer wall circumference of the rotor switch close to the rear cover. Buckling blocks that can be inserted and buckled with the buckling holes are provided on the circumference of the rear cover.

[0026] Adopting the above technical solution: Through the arrangement of the rear cover, the buckling blocks and the buckling holes, when the rear cover and the rotor switch are assembled, the buckling blocks are located in the buckling holes to achieve assembly. The assembly steps are simple. At the same time, the setting of the rear cover also plays a certain role in dust prevention.

[0027] The above-mentioned locomotive ignition lock can be further configured as: A plurality of first through holes are provided at the lower part of one side of the lock case close to the rotor switch, and a plurality of second through holes corresponding to the first through holes are provided at the lower part of one end of the rotor switch close to the lock case.

[0028] Adopt the above technical solution: Through the arrangement of the first and second through holes, and then connecting the first and second through holes with fasteners, the installation firmness between the lock shell and the rotor switch is further improved, and at the same time, the structure is simple and the operation is convenient.

[0029] The following further describes the present utility model in detail with reference to the drawings and embodiments. Description of the Drawings

[0030] Figure 1 Is the overall schematic diagram of the present utility model;

[0031] Figure 2 Is the exploded schematic diagram of the present utility model;

[0032] Figure 3 Is the exploded schematic diagram of the present utility model from another perspective;

[0033] Figure 4 Is the overall sectional schematic diagram of the present utility model;

[0034] Figure 5 Is the overall schematic diagram of the lock core rotating shaft of the present utility model;

[0035] Figure 6 Is the schematic diagram of the lock shell of the present utility model;

[0036] Figure 7 Is the schematic diagram of the lock shell of the present utility model from another perspective;

[0037] Figure 8 Is the nested schematic diagram of the lock core and the lock shell of the present utility model;

[0038] Figure 9 Is the overall schematic diagram of the rotating shaft, driving piece and lock bolt of the present utility model;

[0039] Figure 10 Is the nested schematic diagram of the lock core and the rotor switch of the present utility model;

[0040] Figure 11 Is the schematic diagram of the rotor switch of the present utility model;

[0041] Label description: Lock shell 1, blade groove 11, positioning convex block 12, positioning boss 13, first limiting block 131, second limiting block 132, sliding groove 133, installation slot hole 14, guiding notch 15, first through hole 16, lock core 2, blade hole 21, positioning groove 22, rotating shaft 3, positioning block 31, transmission part 32, driving part 33, connecting part 34, driving piece 4, oval hole 41, lock bolt hole 42, lock bolt 5, annular groove 51, rotor switch 6, switch assembly 61, third limiting block 62, fourth limiting block 63, installation buckle 64, second through hole 65, rear cover 66, buckling block 661, buckling hole 67. Detailed implementation mode

[0042] The technical solutions in the embodiments of the present utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0043] As Figures 1 to 8 shown, a locomotive ignition lock includes a lock housing 1 and a lock core 2. The lock core 2 is rotatably arranged in the lock housing 1. The lock core 2 is provided with blade holes 21. The lock housing 1 is provided with blade grooves 11 for accommodating blades. A rotor switch 6 is snap-connected to the rear end of the lock housing 1. A rotating shaft 3 is arranged in the lock housing 1. A driving piece 4 and a lock bolt 5 are also arranged in the lock housing 1. The driving piece 4 is connected to the lock bolt 5. When the rotating shaft 3 rotates, it can drive the driving piece 4 to move to realize the telescopic movement of the lock bolt 5. A positioning boss 13 formed integrally is arranged on the inner wall of the lock housing 1. The lock core 2 and the rotating shaft 3 are formed integrally. A positioning block 31 is arranged at the connecting part of the lock core 2 and the rotating shaft 3. The positioning block 31 can abut against the positioning boss 13. Different from the prior art where the limiting device needs to be assembled additionally, in the present utility model, by arranging the integrally formed positioning boss 13 on the inner wall of the lock housing 1, the number of assembled parts is reduced, the production cost is reduced, and the assembly efficiency is improved at the same time. The lock core 2 and the rotating shaft 3 are also formed integrally, reducing the parts for fixing the rotating shaft 3 and the lock core 2. When the lock core 2 is arranged in the lock housing 1, the positioning block 31 abuts against the end face of the positioning boss 13 close to the rotor switch 6 to achieve the limiting effect and prevent the lock core 2 from disengaging from the lock housing 1.

[0044] As Figure 3 、 Figure 7 、 Figure 8At one end of the positioning boss 13 away from the lock core 2, a first limit block 131 and a second limit block 132 integrated with the positioning boss 13 are provided at intervals. A sliding groove 133 for the positioning block to slide is formed between the first limit block 131 and the second limit block 132. Through the arrangement of the first and second limit blocks, during the assembly process of the ignition lock, the lock core 2 and the rotating shaft 3 are installed in the lock housing 1, so that the positioning block 31 provided at the connection part of the lock core 2 and the rotating shaft 3 falls into the sliding groove 133 between the first limit block 131 and the second limit block 132. Since the positioning block 31 is limited between the two, the lock core 2 cannot be axially pulled out of the lock housing 1. This structure only needs to be aligned and installed during assembly, and will not affect the unlocking and rotation of the lock core 2 during actual use. In order to adapt to the unlocking functions of each gear of the lock core 2, the sliding groove 133 can be set at an angle adapted to the gear. The positioning boss 13 is provided with a guiding notch 15 for installing the positioning block 31, and the position of the guiding notch 15 corresponds to one of the blade grooves 11. Through the guiding notch 15, during the assembly process of installing the lock core 2 and the rotating shaft 3 in the lock housing 1, the positioning block 31 can be inserted into the lock housing 1 along the blade groove 11, and the guiding notch 15 is provided at the corresponding position of the positioning boss 13 with respect to the blade groove 11 for the positioning block 31 to move out of the blade groove 11 to the end face of the positioning boss 13 close to the rotor switch 6. Then, by rotating the lock core 2, the positioning block 31 falls into the sliding groove 133 between the first limit block 131 and the second limit block 132, realizing the positioning function of the lock core 2, reducing the assembly parts, simplifying the assembly process, and improving the assembly efficiency.

[0045] As Figure 2 , Figure 10 , Figure 11 On the end face of the rotor switch 6 close to the rotating shaft 3, a third limit block 62 is provided. The third limit block 62 is provided with a fourth limit block 63 at intervals along the circumferential rotation direction of the rotating shaft 3. The fourth limit block 63 is provided with an inclined surface, and the third limit block 62 and the fourth limit block 63 can abut against the rotating shaft 3. Through the arrangement of the third and fourth limit blocks, when the rotor switch 6 is fixed to the lock housing 1, the initial position of the rotating shaft 3 can abut against the third limit block 62. When an incorrect key is inserted, the blade on the lock core 2 is not reset, and the lock core 2 cannot rotate circumferentially. Even if one wants to axially move the lock core 2, the third limit block 62 abuts against the rotating shaft 3, and the lock core 2 is limited and cannot be axially moved. When the correct key is inserted, the lock core 2 is unlocked. At this time, the fourth limit block 63 and the second limit block 132 cooperate with each other. When the rotating shaft 3 rotates to the top of the fourth limit block 63 through the inclined surface of the fourth limit block 63, the positioning block 31 abuts against the second limit block 132, further improving the positioning ability of the lock core 2 and the rotating shaft 3.

[0046] As Figure 2 , Figure 5 , Figure 9A plurality of positioning grooves 22 are provided on the outer peripheral side of the lock core 2 shown, and positioning protrusions 12 corresponding to the positioning grooves 22 are provided in the blade groove 11. Through the mutual cooperation of the positioning grooves 22 provided on the outer peripheral side of the lock core 2 and the positioning protrusions 12 provided in the blade groove 11, when the lock core 2 is in the initial position in the lock shell 1, the positioning protrusions 12 are snapped into the positioning grooves 22, and the lock core 2 sleeved in the lock shell 1 is further limited, and the lock core 2 will not shake.

[0047] As Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 9 The rotating shaft 3 shown includes a transmission part 32, a driving part 33 and a connecting part 34 which are integrally arranged. The connecting part 34 is arranged between the transmission part 32 and the driving part 33 and is respectively connected to the transmission part 32 and the driving part 33 at both ends. The transmission part 34 is coaxially arranged with the lock core 2, the transmission part 32 is coaxially arranged with the driving part 33, the connecting part 34 is eccentrically arranged with the transmission part 32 and the driving part 33 respectively. One end of the driving part 33 away from the lock core 2 is connected to the rotor switch 6. The driving part 33 is arranged in the switch assembly 61. An oval hole 41 through which the rotating shaft 3 can pass is provided on the driving piece 4. The transmission part 32 passes through the oval hole 41. Compared with the prior art method of pressing the lock core 2 to make a part of the rotating shaft 3 snap into the driving piece 4 and then driving the bolt 5 to move telescopically, and the multi-hole or inclined hole provided on the driving piece 4, the oval hole 41 of the driving piece 4 of the present invention can directly follow the telescopic movement of the transmission part 32 and will not affect the rotation process of the rotating shaft 3. The structure is simple and the assembly is fast. The driving piece 4 is provided with a bolt hole 42. One end of the bolt 5 is provided with an annular groove 51. The bolt 5 can be snap-connected with the bolt hole 42 through the annular groove 51. The bolt 5 is matched with the bolt hole 42 of the driving piece 4 through the annular groove 51, so that the bolt 5 can be linked with the driving piece 4, greatly simplifying the structures of the driving piece 4 and the bolt 5, facilitating the installation of the driving piece 4 and the bolt 5 on the rotating shaft 3, improving the assembly efficiency and saving the assembly time.

[0048] As Figures 1 to 4 , Figure 7 , Figure 8 , Figure 10 , Figure 11One end outer wall of the shown lock housing 1 close to the rotor switch 6 is provided with at least one mounting slot hole 14. One end of the rotor switch 6 close to the lock housing 1 extends towards the lock housing 1 with a mounting buckle 64 that can be buckled with the mounting slot hole 14. Through the settings of the mounting slot hole 14 and the mounting buckle 64, during the assembly process, the mounting buckle 64 is inserted into the mounting slot hole 14 to achieve buckling, completing the connection between the lock housing 1 and the rotor switch 6. The structure is simple and convenient for assembly. One end of the rotor switch 6 far from the lock housing 1 is provided with a rear cover 66. A plurality of buckling holes 67 are provided along the outer wall circumference of the rotor switch 6 close to the rear cover 66. The rear cover 66 is provided with buckling blocks 661 that can be inserted and buckled with the buckling holes 67. Through the settings of the rear cover 66, the buckling blocks 661 and the buckling holes 67, when the rear cover 66 and the rotor switch 6 are assembled, the buckling blocks 661 are located in the buckling holes 67 to achieve assembly. The assembly steps are simple. At the same time, the setting of the rear cover 66 also plays a certain role in dust prevention. The lower part of one side of the lock housing 1 close to the rotor switch 6 is provided with a plurality of first through holes 16. The lower part of one end of the rotor switch 6 close to the lock housing 1 is provided with second through holes 65 corresponding to the first through holes 16. Through the settings of the first and second through holes, and then connecting the first and second through holes with fasteners, the installation firmness between the lock housing and the rotor switch is further improved. At the same time, the structure is simple and the operation is convenient.

[0049] The above embodiments only represent several implementation manners of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model.

Claims

1. A locomotive ignition lock, comprising a lock housing and a lock core, wherein the lock core is rotatably arranged in the lock housing, the lock core is provided with a blade hole, the lock housing is provided with a blade groove for accommodating a blade, a rotor switch is clamped at the rear end of the lock housing, a rotating shaft is provided in the lock housing, a drive plate and a lock latch are provided in the lock housing, and the drive plate is connected to the lock latch, characterized in that: An integrally formed positioning boss is provided on the inner wall of the lock housing, the lock core and the rotating shaft are integrally formed, and a positioning block is provided at the connecting portion between the lock core and the rotating shaft, and the positioning block can abut against the positioning boss.

2. A locomotive ignition lock according to claim 1, characterized in that: A first limiting block and a second limiting block which are integrally arranged with the positioning boss are provided at intervals on one end of the positioning boss away from the lock core, and a sliding groove for sliding the positioning block is formed between the first limiting block and the second limiting block.

3. A locomotive ignition lock according to claim 2, characterized in that: A third limit block is provided on the end surface of the rotor switch close to the rotating shaft, and a fourth limit block is provided at intervals along the circumferential rotation direction of the rotating shaft. The fourth limit block is provided with an inclined surface, and the third limit block and the fourth limit block can be offset against the rotating shaft.

4. A locomotive ignition lock according to claim 3, characterized in that: The positioning boss is provided with a guide notch for installing the positioning block, and the guide notch corresponds to the position of one of the blade slots.

5. A locomotive ignition lock according to claim 4, characterized in that: A plurality of positioning grooves are arranged on the outer peripheral side of the lock core, and positioning protrusions corresponding to the positioning grooves are arranged in the blade groove.

6. A locomotive ignition lock according to any one of claims 1 to 5, characterized in that: The rotating shaft includes an integrally arranged transmission part, a driving part and a connecting part, the connecting part is arranged between the transmission part and the driving part and the two ends are respectively connected to the transmission part and the driving part, the transmission part and the lock core are coaxially arranged, the transmission part and the driving part are coaxially arranged, the connecting part and the driving part are eccentrically arranged, the end of the driving part away from the lock core is connected to the rotor switch, the driving part is arranged in the switch assembly, the driving plate is provided with an elliptical hole for the rotating shaft to pass through, the transmission part is passed through the elliptical hole, and the rotation of the rotating shaft can drive the driving plate to move to realize the telescopic movement of the lock latch.

7. A locomotive ignition lock according to claim 6, characterized in that: The driving plate is provided with a latch hole, one end of the latch is provided with an annular groove, and the latch can be engaged with the latch hole through the annular groove.

8. The locomotive ignition lock according to claim 1, characterized in that: At least one mounting slot is provided on the outer wall of one end of the lock housing close to the rotor switch, and a mounting buckle that can be buckled with the mounting slot extends toward the lock housing from one end of the rotor switch close to the lock housing.

9. A locomotive ignition lock according to claim 8, characterized in that: A rear cover is provided at one end of the rotor switch away from the lock housing, a plurality of buckling holes are provided along the circumference of the outer wall of the rotor switch near the rear cover, and buckling blocks that can be inserted and buckled with the buckling holes are provided on the circumference of the rear cover.

10. A locomotive ignition lock according to claim 9, characterized in that: A plurality of first through holes are arranged at the lower part of the lock housing near the rotor switch, and a second through hole corresponding to the first through holes is arranged at the lower part of the rotor switch near one end of the lock housing.

Images