Ignition lock

Abstract

The utility model relates to the technical field of locksets, in particular to an ignition lock, which comprises a lock body, a lock cylinder, a rotating shaft and a rotor box assembly, the lock body comprises a rotating shaft mounting box and a lock cylinder mounting pipe, and the lock cylinder is rotatably arranged in the lock cylinder mounting pipe. The rotating shaft comprises a first connecting section inserted into the lock cylinder, a second connecting section inserted into the rotor and a driving section matched with the driving piece, the first connecting section and the second connecting section are integrally connected through the driving section, the first connecting section and the second connecting section are coaxially arranged, and the driving section and the first connecting section are eccentrically arranged. A supporting groove for the second connecting section to penetrate through is formed in the bottom of the rotating shaft mounting box, an arc-shaped part coaxial with the second connecting section is arranged on one side of the supporting groove, and the upper portion of the second connecting section is located in the arc-shaped part of the supporting groove and matched with the arc-shaped part of the supporting groove.

Description

Technical Field

[0001] This utility model relates to the field of lock technology, specifically to an ignition lock. Background Technology

[0002] An ignition lock, also known as an ignition switch, is a multi-position switch that can only be operated with a corresponding key. Ignition locks are typically used to control the power on or off of electric vehicles or motorcycles, open the seat, lock the handlebars, etc.

[0003] The utility model patent application with patent number CN201720469648.2 discloses an ignition lock for electric vehicles or motorcycles, including a lock body, a lock cylinder, a gear position seat, and a rotor assembly disposed in the gear position seat. The lock cylinder and the rotor of the rotor assembly are connected by a rotating shaft, and the rotating shaft and the lock cylinder are linked. Since the connection between the rotating shaft and the rotor lacks a support structure for the rotating shaft, in actual use, when the ignition lock is in the lock head position, the suspended rotating shaft is prone to breakage when subjected to external impact. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide an ignition lock that enhances the structural strength and security of the ignition lock, addressing the shortcomings of the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an ignition lock, comprising a lock body, a lock cylinder, a rotating shaft, and a rotor box assembly. The lock cylinder and the rotor of the rotor box assembly are connected via the rotating shaft, which is linked to the lock cylinder. The lock body is provided with a drive plate and a latch, which are connected. Rotation of the rotating shaft can drive the drive plate to move, thereby achieving the extension and retraction of the latch. The lock body includes a rotating shaft mounting box for mounting the drive plate and the rotating shaft, and a lock cylinder mounting tube for mounting the lock cylinder. The lock cylinder is rotatably disposed within the lock cylinder mounting tube, and one end of the lock cylinder mounting tube is connected to the rotating shaft mounting box. The shaft has a lock cylinder end cap at one end and a connecting section at the other end. The shaft includes a first connecting section that is inserted into the lock cylinder, a second connecting section that is inserted into the rotor, and a driving section that cooperates with the driving plate. The first connecting section and the second connecting section are integrally connected through the driving section. The first connecting section and the second connecting section are coaxially arranged, and the driving section is eccentrically arranged with the first connecting section. The bottom of the shaft mounting box has a support groove for the second connecting section to pass through. One side of the support groove has an arc-shaped part coaxial with the second connecting section. The upper part of the second connecting section is located in the arc-shaped part of the support groove and is adapted to it.

[0006] The present invention, which has the above-mentioned features, provides a support groove at the bottom of the rotating shaft mounting box and sets the side of the support groove that is fitted with the second connecting section as an arc-shaped part coaxial with the second connecting section, so that the groove wall of the support groove abuts against the upper part of the second connecting section, providing a support structure for the second connecting section of the rotating shaft. This solves the problem that the rotating shaft is prone to breakage under external impact when the ignition lock is in the lock head position, and enhances the structural strength and safety of the ignition lock.

[0007] A further feature of this invention is that: one side of the rotating shaft mounting box is provided with a latch hole for the latch to extend out, and the inner wall of the rotating shaft mounting box with the latch hole is provided with a clearance groove, which divides the latch hole and the inner wall into two parts.

[0008] The present invention, which has the above-mentioned features, has the following characteristics: the relief groove prevents the drive plate from touching the inner wall of the rotating shaft mounting box when it moves forward along the locking tongue axis; the relief groove divides the locking tongue hole and the inner wall into two parts, and the locking tongue hole and the inner wall are distributed vertically to hold the locking tongue, so that the inner wall is evenly stressed, which can effectively prevent cracks in the inner wall of the rotating shaft mounting box caused by uneven stress and extend the service life of the rotating shaft mounting box.

[0009] A further feature of this invention is that: the inner walls on both sides of the rotating shaft mounting box, which are parallel to the lock tongue axis, are provided with mounting protrusions for mounting drive plates, and mounting grooves for accommodating drive plates are provided on the mounting protrusions.

[0010] The present invention, which has the above-mentioned features, provides a precise installation position and a stable guiding structure for the drive plate by setting up the mounting protrusion and mounting groove. The drive plate can be inserted into the two mounting grooves, which is convenient for assembly and ensures that the path of the drive plate is stable and will not deviate when it moves forward with the rotating shaft.

[0011] A further feature of this invention is that the shaft mounting box has a chamber for mounting the drive plate and the shaft. The shaft mounting box is open on one side opposite the locking tongue hole, and a dust cover is detachably provided at the open side. The dust cover and the chamber form a sealed space.

[0012] The present invention, which has the above-mentioned features, has an open side of the shaft mounting box for easy assembly, observation and maintenance. By providing a removable dust cover, it can prevent dust and impurities from entering the ignition lock, avoid impurities from affecting the normal operation of components such as the drive plate and shaft, and thus extend the service life of the ignition lock.

[0013] A further feature of this invention is that the rotor box assembly includes a rotor box, a rotor assembly disposed within the rotor box, and a cover. The rotor box includes a box body with an open end and a connecting plate located at the other end of the box body. The cover is snapped onto the open end of the box body. The connecting plate is attached to the bottom of the shaft mounting box. Two hooks are provided on the end face of the connecting plate. A hook groove is provided at the bottom of the shaft mounting box for the hooks to pass through. Hook protrusions that are adapted to the hooks are provided on the inner walls of both sides of the shaft mounting box parallel to the locking tongue axis. After the hooks pass through the hook grooves, they are snapped onto the hook protrusions. A positioning boss is also provided on the end face of the connecting plate. A positioning groove is provided at the bottom of the shaft mounting box for the positioning boss to insert into.

[0014] The present invention, which has the above features, facilitates the positioning of the rotor box during installation by setting a positioning boss on the connecting plate, thereby improving assembly efficiency; and sets a hook protrusion in the shaft mounting box to connect the rotor box and the lock body with the hook. The hook protrusion is different from the through hole in the prior art, which prevents dust from entering the lock body and improves the sealing effect inside the lock body.

[0015] A further feature of this invention is that a stop groove is provided on the outer circumferential surface of the lock cylinder, and a limit pin is threadedly connected to the lock body to cooperate with the stop groove for limiting the movement of the lock cylinder sleeve.

[0016] The present utility model with the above features: after the lock cylinder is inserted with a matching key, when the key is turned to switch from the ignition position to the off position, the limit pin moves in the position groove to limit the travel of the lock cylinder.

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0019] Figure 2 This is an exploded view of an embodiment of the present utility model.

[0020] Figure 3 This is a schematic diagram of the internal structure of the shaft mounting box according to an embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of the lock body structure according to an embodiment of the present utility model. Figure 1 .

[0022] Figure 5 This is a schematic diagram of the lock body structure according to an embodiment of the present utility model. Figure 2 .

[0023] Figure 6 This is a schematic diagram of the lock cylinder and the limiting pin in an embodiment of this utility model.

[0024] Figure 7 This is a schematic diagram of the structure of the rotating shaft in an embodiment of the present invention.

[0025] Figure 8 This is a schematic diagram of the rotor box structure according to an embodiment of the present invention. Detailed Implementation

[0026] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0027] like Figure 1-8 The ignition lock shown includes a lock body 1, a lock cylinder 2, a rotating shaft 3, and a rotor box assembly 4. The lock cylinder 2 and the rotor 41 of the rotor box assembly 4 are connected via the rotating shaft 3. The rotating shaft 3 and the lock cylinder 2 are linked together. The lock body 1 is provided with a drive plate 5 and a latch 6. The drive plate 5 and the latch 6 are connected. The rotation of the rotating shaft 3 can drive the drive plate 5 to move, thereby realizing the extension and retraction of the latch 6. The lock body 1 includes a rotating shaft mounting box 11 for mounting the drive plate 5 and the rotating shaft 3, and a lock cylinder mounting tube 12 for mounting the lock cylinder 2. The lock cylinder 2 is rotatably mounted in the lock cylinder mounting tube 12. One end of the lock cylinder mounting tube 12 is connected to the rotating shaft mounting box 11, and the other end is provided with a lock cylinder end cap 7. The rotating shaft 3 encloses... The device includes a first connecting section 31 that is inserted into the lock cylinder 2, a second connecting section 32 that is inserted into the rotor 41, and a driving section 33 that cooperates with the driving plate 5. The first connecting section 31 and the second connecting section 32 are integrally connected through the driving section 33. The first connecting section 31 and the second connecting section 32 are coaxially arranged, and the driving section 33 is eccentrically arranged with the first connecting section 31. The bottom of the rotating shaft mounting box 11 has a support groove 111 through which the second connecting section 32 passes. One side of the support groove 111 has an arc-shaped part 1111 coaxial with the second connecting section 32. The upper part of the second connecting section 32 is located in the arc-shaped part 1111 of the support groove 111 and is adapted to it.

[0028] One side of the pivot mounting box 11 is provided with a latch hole 112 for the latch 6 to extend out. The inner wall of the pivot mounting box 11 with the latch hole 112 is provided with a relief groove 113. The relief groove 113 divides the latch hole 112 and the inner wall into two parts. The inner walls of the pivot mounting box 11 on both sides parallel to the axis of the latch 6 are provided with mounting protrusions 114 for mounting the drive piece 5. The mounting protrusions 114 are provided with mounting grooves 115 for accommodating the drive piece 5.

[0029] The rotating shaft mounting box 11 has a chamber for mounting the drive plate 5 and the rotating shaft 3. The rotating shaft mounting box 11 is open on one side opposite the locking tongue hole 112. A dust cover 8 is detachably provided at the open side, and the dust cover 8 and the chamber form a sealed space.

[0030] The rotor box assembly 4 includes a rotor box 42, a rotor assembly disposed inside the rotor box 42, and a cover 43. The rotor box 42 includes a box body 421 with one end open and a connecting plate 422 located at the other end of the box body 421. The cover 43 is snapped into the open end of the box body 421. The connecting plate 422 is attached to the bottom of the shaft mounting box 11. Two hooks 4221 are provided on the end face of the connecting plate 422. The bottom of the shaft mounting box 11 has a hook groove 116 for the hooks 4221 to pass through. The inner walls of the shaft mounting box 11 on both sides parallel to the axis of the latch 6 are provided with hook protrusions 117 that are adapted to the hooks 4221. The hooks 4221 are snapped into the hook protrusions 117 after passing through the hook grooves 116. The end face of the connecting plate 422 is also provided with a positioning boss 4222. The bottom of the shaft mounting box 11 has a positioning groove 118 for the positioning boss 4222 to be inserted.

[0031] The outer circumferential surface of the lock cylinder 2 is provided with a stop groove 21, and the lock body 1 is threaded with a limit pin 9 that cooperates with the stop groove 21 to limit the movement of the lock cylinder 2.

[0032] This ignition lock has a ignition handle position, an off position, and an ignition position. Initially, the ignition lock is in the off position. After inserting a compatible key into the lock cylinder, turning the key rotates the lock cylinder to either the ignition or ignition handle position. When in the ignition handle position, the bolt extends. At this time, the upper part of the second connecting section of the pivot is located in the support groove and abuts against the arc-shaped part of the support groove. The arc-shaped part supports the second connecting section. This structure strengthens the protection of the pivot when criminals shake the vehicle handle from side to side, causing the handle to hit the bolt, or the bolt to hit the pivot backward, preventing the pivot from breaking and thus achieving an anti-theft effect and extending the service life of the ignition lock. The position groove on the lock cylinder rotates with the lock cylinder. The shape of the position groove represents the path of the lock cylinder from the off position to the ignition position and from the off position to the ignition handle position. The position groove, in conjunction with the limit pin, can limit the movement of the lock cylinder.

Claims

1. An ignition lock, comprising a lock body, a lock cylinder, a rotating shaft, and a rotor housing assembly, wherein the lock cylinder and the rotor of the rotor housing assembly are connected via the rotating shaft, the rotating shaft and the lock cylinder are linked together, the lock body is provided with a drive plate and a latch, the drive plate and the latch are connected, and the rotation of the rotating shaft can drive the drive plate to move to realize the extension and retraction of the latch, characterized in that: The lock body includes a shaft mounting box for mounting the drive plate and the shaft, and a lock cylinder mounting tube for mounting the lock cylinder. The lock cylinder is rotatably mounted inside the lock cylinder mounting tube. One end of the lock cylinder mounting tube is connected to the shaft mounting box, and the other end is provided with a lock cylinder end cap. The shaft includes a first connecting section that is inserted into the lock cylinder, a second connecting section that is inserted into the rotor, and a drive section that cooperates with the drive plate. The first connecting section and the second connecting section are integrally connected through the drive section. The first connecting section and the second connecting section are coaxially arranged, and the drive section is eccentrically arranged with respect to the first connecting section. The bottom of the shaft mounting box has a support groove for the second connecting section to pass through. One side of the support groove has an arc-shaped part coaxial with the second connecting section. The upper part of the second connecting section is located in the arc-shaped part of the support groove and is adapted to it.

2. An ignition lock according to claim 1, characterized in that: One side of the rotating shaft mounting box is provided with a latch hole for the latch to extend out. The inner wall of the rotating shaft mounting box with the latch hole is provided with a relief groove, which divides the latch hole and the inner wall into two parts.

3. An ignition lock according to claim 1 or 2, characterized in that: The inner walls on both sides of the rotating shaft mounting box, which are parallel to the lock tongue axis, are provided with mounting protrusions for mounting drive plates, and mounting grooves for accommodating drive plates are provided on the mounting protrusions.

4. An ignition lock according to claim 2, characterized in that: The rotating shaft mounting box has a chamber for mounting the drive plate and the rotating shaft. The rotating shaft mounting box is open on one side opposite the locking tongue hole. A dust cover is detachably provided at the open side, and the dust cover and the chamber form a sealed space.

5. An ignition lock according to claim 1, characterized in that: The rotor box assembly includes a rotor box, a rotor assembly disposed inside the rotor box, and a cover. The rotor box includes a box body with one open end and a connecting plate located at the other end of the box body. The cover is snapped into the open end of the box body. The connecting plate is attached to the bottom of the shaft mounting box. Two hooks are provided on the end face of the connecting plate. The bottom of the shaft mounting box has a hook groove for the hooks to pass through. The inner walls on both sides of the shaft mounting box, which are parallel to the lock tongue axis, are provided with hook protrusions that are adapted to the hooks. After the hooks pass through the hook grooves, they are snapped into the hook protrusions. The end face of the connecting plate is also provided with a positioning boss. The bottom of the shaft mounting box has a positioning groove for the positioning boss to be inserted into.

6. An ignition lock according to claim 1, characterized in that: The outer circumferential surface of the lock cylinder is provided with a stop groove, and the lock body is threaded with a limit pin that cooperates with the stop groove to limit the movement stroke of the lock cylinder.

Images