High-stability oil tank lock

Abstract

A high-stability oil tank lock comprises a mounting frame and a pushing and pressing device. The pushing and pressing device comprises a guide base, a guide groove, a pushing and pressing assembly, a sleeve assembly, a limiting pin and a spring. The guide groove comprises a locking guide groove, an unlocking guide groove, a locking protrusion and a center shaft. The pushing and pressing assembly comprises a pushing and pressing sliding block, a locking rod and an abutting locking block. And the locking rod comprises a locking rod main body and a locking insertion rod. The locking guide groove comprises a first vertical locking guide groove, a second vertical locking guide groove, a transverse locking guide groove and a guide hook. The unlocking guide groove comprises a first vertical unlocking guide groove, a second vertical unlocking guide groove and a transverse unlocking guide groove. The locking protrusion comprises a locking protrusion body, a locking groove, a first limiting protrusion and a second limiting protrusion. According to the high-stability oil tank lock, the stability of the locking rod in the guide groove is improved, and the use safety of a product is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile accessories, in particular to a fuel tank lock with high stability. Background Art

[0002] A fuel tank lock is a device used to protect a vehicle's fuel tank from theft. It comes in three main types: mechanical, electronic, and combination. A mechanical lock locks the fuel tank cap by inserting a deadbolt into a keyhole, requiring a key to open. An electronic lock connects to the vehicle's smart key system and controls the opening and closing of the fuel tank cap via wireless signals. A combination lock combines mechanical and electronic components to provide dual security. Currently, fuel tank locks have some issues during use. When the user presses the fuel tank lock buckle, the hook slides unsteadily within the guide groove, causing the hook to not fully disengage from the locking limit slot or preventing the hook from resetting. This not only affects the normal use of the fuel tank lock but also poses a potential safety hazard. Summary of the Invention

[0003] In view of this, the present invention provides a high-stability fuel tank lock that can improve locking stability to meet industrial needs.

[0004] A highly stable fuel tank lock comprises a mounting frame and a pushing device disposed within the mounting frame. The pushing device comprises a guide seat disposed on the mounting frame, a guide groove disposed on the guide seat, a pushing assembly disposed on the guide seat, a sleeve assembly disposed on the pushing assembly and connected to the pushing mounting portion, a limit pin interposed between the pushing assembly and the sleeve assembly, and a spring disposed between the guide seat and the pushing assembly. The guide groove comprises a locking guide groove, an unlocking guide groove disposed on one side of the locking guide groove, a locking protrusion disposed between the locking guide groove and the unlocking guide groove, and a central axis disposed on the guide seat. The pushing assembly comprises a pushing slider disposed on the guide seat, a locking rod fixedly connected to the pushing slider, and a locking block fixedly connected to the pushing slider. The locking rod is disposed between the pushing slider and the guide seat body. The locking rod includes a locking rod body movably connected to the pushing slider, a locking rod disposed at one end of the locking rod body, and a collar disposed at one end of the locking rod body facing the abutting lock block. The locking rod body passes through the pushing slider, the locking rod is accommodated in the guide groove, the limit pin is inserted between the sleeve assembly and the abutting lock block, and the collar is movably sleeved on the limit pin. The locking guide groove includes a first vertical locking guide groove, a second vertical locking guide groove connected to one end of the first vertical locking guide groove, a transverse locking guide groove disposed in the second vertical locking guide groove, and a guide hook disposed at one end of the transverse locking guide groove. The second vertical locking guide groove is connected to one end of the first vertical locking guide groove and is inclined away from the unlocking guide groove. The transverse locking guide groove is inclined toward the central axis. The unlocking guide groove includes a first vertical unlocking guide groove, a second vertical unlocking guide groove connected to one end of the first vertical unlocking guide groove, and a transverse unlocking guide groove disposed on one side of the second vertical unlocking guide groove. The intersection of the first vertical unlocking guide groove and the second vertical unlocking guide groove is disposed on the side of the central axis where the locking guide groove is located. One end of the transverse unlocking guide groove is connected to the free end of the guide hook, and the end of the transverse unlocking guide groove connected to the free end of the guide hook is located on the side of the central axis where the locking guide groove is located. The connection position between the first vertical unlocking guide groove and the second vertical unlocking guide groove corresponds to that of the second vertical locking guide groove. The locking protrusion includes a locking protrusion body, a locking groove disposed on the locking protrusion body, a first limiting protrusion disposed on the side of the locking groove near the locking guide groove, and a second limiting protrusion disposed on the side of the locking groove near the unlocking guide groove.The locking groove is provided on the central shaft and corresponds to the transverse unlocking guide groove. The first and second limiting protrusions face one end of the fixing seat, and the transverse locking guide groove faces one end of the transverse unlocking guide groove and corresponds to the first limiting protrusion, so as to guide the locking rod in the pushing assembly to slide onto the first limiting protrusion through the transverse locking guide groove.

[0005] Furthermore, the mounting frame includes a mounting frame body, a pushing mounting portion arranged on the mounting frame body and used to install the pushing device, an upper limit mounting portion arranged on the mounting frame body, and a locking hole arranged between the pushing mounting portion and the limit mounting portion.

[0006] Furthermore, the push-mounting portion includes a push-mounting sleeve and a spiral guide groove provided on a side wall of the push-mounting sleeve, and the spiral guide groove is provided on the side wall of the push-mounting sleeve by rotating 90 degrees.

[0007] Furthermore, the position-limiting mounting portion is used to install the position-limiting device, and the position-limiting mounting portion includes a mounting protrusion provided on the mounting frame body, a rotating shaft mounting hole provided on the mounting protrusion, and a mounting through hole provided on the mounting frame body.

[0008] Furthermore, the high-stability fuel tank lock also includes a limiting device arranged on one side of the pushing device and used to limit the position of the pushing device, the limiting device includes a driving motor, an external gear arranged on the driving motor, an eccentric disk engaged with the external gear, and a blocking cross bar arranged on the eccentric disk.

[0009] Furthermore, the eccentric disk includes an eccentric disk body, a rotating shaft arranged on the eccentric disk body, an annular flange arranged on one side of the eccentric disk body and surrounding the rotating shaft, and an internal gear arranged on the side of the eccentric disk body facing away from the annular flange. The center axis of the annular flange is spaced apart from the rotating shaft, the rotating shaft is inserted into the rotating shaft mounting hole, and the external gear is accommodated in the mounting through hole and meshes with the internal gear.

[0010] Furthermore, the blocking cross bar includes a blocking cross bar body, a receiving groove provided on one side of the blocking cross bar body and used to receive the annular flange, and one end of the blocking cross bar body is inserted into the locking hole.

[0011] Furthermore, the sleeve assembly includes a sleeve body, a guide pin arranged on the outer side wall of the sleeve body, and a sleeve limiting hole arranged on the outer side wall of the sleeve body. The sleeve body is fixedly connected to the top locking block in the pushing assembly, and the guide pin is inserted in the spiral guide groove.

[0012] Furthermore, the guide seat includes a fixed seat fixedly connected to the pushing mounting portion, a limiting seat arranged on the fixed seat, and a guide seat body arranged on the limiting seat. The diameters of the fixed seat and the guide seat body are both smaller than the diameter of the limiting seat, and the distance between the first limiting protrusion and the limiting seat is smaller than the distance between the second limiting protrusion and the limiting seat.

[0013] Furthermore, the pushing slider includes a pushing slider body, a pushing slider limiter arranged on one side of the pushing slider body, and a blocking block arranged on the pushing slider limiter, the diameter of the pushing slider limiter is larger than the diameter of the pushing slider body and the blocking block, the spring is arranged between the guide seat and the pushing assembly, wherein one end of the spring abuts against the limiting seat, and the other end of the spring abuts against the pushing slider limiter.

[0014] Compared with the prior art, the fuel tank lock provided by the present invention has a high stability, wherein the locking rod in the pushing assembly of the pushing device slides along the guide groove along the locking rod, thereby locking or unlocking the pushing assembly. The guide groove includes a locking guide groove, an unlocking guide groove provided on one side of the locking guide groove, and a locking protrusion provided between the locking guide groove and the unlocking guide groove. The second vertical locking guide groove in the locking guide groove is connected to the first vertical locking guide groove, and is tilted away from the unlocking guide groove at one end. The transverse locking guide groove is tilted toward the central axis so that the locking rod entering from the second vertical locking guide groove is deflected toward the central axis. The guide hook is arranged below the locking protrusion and is spaced apart from the locking protrusion. When the locking rod reaches the guide hook, the locking rod cannot move further due to the obstruction of the guide hook. As a result, the locking rod enters the locking protrusion under the action of the spring and is hooked by the locking protrusion to lock the locking rod of the locking rod, thereby achieving the purpose of locking. The intersection of the first vertical unlocking guide groove and the second vertical unlocking guide groove is arranged on the side of the central axis where the locking guide groove is located, and the connection position of the first vertical unlocking guide groove and the second vertical unlocking guide groove corresponds to the second vertical locking guide groove, so that the first vertical unlocking guide groove and the second vertical unlocking guide groove both guide the locking rod in the pushing assembly to the second vertical locking guide groove. The second vertical locking guide groove is connected to one end of the first vertical locking guide groove and is tilted so that the locking rod in the pushing assembly can be unlocked or locked when it slides to the first vertical unlocking guide groove or the transverse locking guide groove. One end of the transverse unlocking guide groove is connected to the free end of the guide hook, so that the end of the transverse unlocking guide groove connected to the free end of the guide hook is located on the side of the central axis where the locking guide groove is located, and the transverse unlocking guide groove is tilted toward the side away from the central axis. When the locking rod is pressed and moves along the transverse unlocking guide groove, and when it reaches the end of the transverse unlocking guide groove on the side of the central axis where the unlocking guide groove is located, it can smoothly enter the second vertical unlocking guide groove and then enter the first vertical unlocking guide groove under the action of the spring to achieve the purpose of unlocking. The locking groove in the locking protrusion is arranged on the central axis, and the locking groove corresponds to the transverse unlocking guide groove. The first limiting protrusion and the second limiting protrusion are facing one end of the fixing seat. The distance between the first limiting protrusion and the limiting seat is smaller than the distance between the second limiting protrusion and the limiting seat. The transverse locking guide groove is facing one end of the transverse unlocking guide groove and corresponds to the first limiting protrusion, so as to guide the locking rod in the pushing assembly to slide onto the first limiting protrusion through the transverse locking guide groove, so that the locking rod is accommodated in the locking groove to achieve locking.It can be seen from this that the high-stability fuel tank lock improves the stability of the locking rod in the guide groove, thereby improving the safety of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of the high-stability fuel tank lock provided by the present invention.

[0016] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure of the high-stability fuel tank lock.

[0017] Figure 3 for Figure 1 Schematic diagram of the decomposed structure of the high-stability fuel tank lock.

[0018] Figure 4 for Figure 2 Schematic diagram of the exploded structure of the pushing device in the high-stability fuel tank lock.

[0019] Figure 5 for Figure 4 A schematic structural diagram of a guide seat and a guide groove in a pushing device. DETAILED DESCRIPTION

[0020] The following is a further detailed description of specific embodiments of the present invention. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the scope of protection of the present invention.

[0021] like Figures 1 to 5 Figure 2 shows a schematic diagram of the structure of the high-stability fuel tank lock provided by the present invention. The high-stability fuel tank lock comprises a fuel tank lock protective housing 1, a sealing cover plate 2 disposed on the fuel tank lock protective housing 1, a mounting bracket 10 fixedly connected to the fuel tank lock protective housing 1, a pressing device 20 disposed within the mounting bracket 10 and used to open and close the vehicle fuel tank cap as needed, and a limiting device 30 disposed on one side of the pressing device 20 and used to limit the position of the pressing device. The high-stability fuel tank lock also includes other functional modules, such as assembly components and electrical connection components, which are well known to those skilled in the art and will not be described in detail here.

[0022] The fuel tank lock protective shell 1 is used to form the mounting bracket 10, the pushing device 20, and the limiting device 30 into a whole, and the fuel tank lock protective shell 1 can also protect the mounting bracket 10, the pushing device 20, and the limiting device 30. The sealing cover plate 2 seals the mounting bracket 10, the pushing device 20, and the limiting device 30 in the fuel tank lock protective shell 1 to stabilize the position of the mounting bracket 10, the pushing device 20, and the limiting device 30, and the shape of the fuel tank lock protective shell 1 is adapted to the mounting bracket 10, the pushing device 20, and the limiting device 30. The fuel tank lock protective shell 1 and the sealing cover plate 2 are both existing technologies and will not be described in detail here.

[0023] The mounting frame 10 includes a mounting frame body 11, a pushing mounting portion 12 arranged on the mounting frame body 11 and used to install the pushing device 20, a limiting mounting portion 13 arranged on the mounting frame body 11 and used to install the limiting device 30, and a locking hole 14 arranged between the pushing mounting portion 12 and the limiting mounting portion 13.

[0024] The mounting bracket body 11 is fixedly connected to the fuel tank lock protective shell 1. The mounting bracket body 11 is a prior art and will not be described in detail here.

[0025] The push-mounting portion 12 is used to mount the push device 20. The push-mounting portion 12 includes a push-mounting sleeve 121 and a spiral guide groove 122 provided on the side wall of the push-mounting sleeve 121. The spiral guide groove 122 is rotated 90 degrees and provided on the side wall of the push-mounting sleeve 121. The spiral guide groove 122 will be described in detail in conjunction with the push device 20.

[0026] The position-limiting mounting portion 13 is used to mount the position-limiting device 30. The position-limiting mounting portion 13 includes a mounting protrusion 131 provided on the mounting frame body 11, a shaft mounting hole 132 provided on the mounting protrusion 131, and a mounting through-hole 133 provided on the mounting frame body 11. The mounting protrusion 131, the shaft mounting hole 132, and the mounting through-hole 133 are all used to limit the position-limiting device 30. Therefore, the position-limiting mounting portion 13 will be described in detail in conjunction with the position-limiting device 30. The locking hole 14 connects the pushing mounting portion 12 with the position-limiting mounting portion 13 to enable the position-limiting device 30 to limit the position of the pushing device 20. Therefore, the locking hole 14 will be described in detail in conjunction with the pushing device 20 and the position-limiting device 30.

[0027] The pushing device 20 includes a guide seat 21 arranged in the mounting frame 10, a guide groove 22 arranged on the guide seat 21, a pushing assembly 23 arranged on the guide seat 21, a sleeve assembly 24 arranged on the pushing assembly 23 and connected to the pushing mounting portion 12, a limiting pin 25 inserted between the pushing assembly 23 and the sleeve assembly 24, and a spring 26 arranged between the guide seat 21 and the pushing assembly 23.

[0028] The guide seat 21 includes a fixed seat 211 fixedly connected to the pushing installation portion 12 , a limiting seat 212 disposed on the fixed seat, and a guide seat body 213 disposed on the limiting seat 212 .

[0029] The diameters of the fixed seat 211 and the guide seat body 213 are both smaller than the diameter of the limiting seat 212, resulting in a stepped outer profile of the guide seat 21, thereby limiting the position of the spring 26. In a cross-section perpendicular to the central axis 224, described below, the guide seat body 213 has a semicircular cross-section. Together with the push slider 231, described below, it forms a cylindrical column that is inserted and received in the sleeve assembly 24.

[0030] The pushing assembly 23 includes a pushing slider 231 disposed on the guide seat 21 , a locking rod 232 fixedly connected to the pushing slider 231 , and a locking block 233 fixedly connected to the pushing slider 231 .

[0031] The push slider 231 has a small semicircular cross-section along the central axis 224, meaning the central angle of the cross-section of the push slider 231 is less than 180 degrees. The locking rod 232 is disposed between the push slider 231 and the guide seat body 213. The push slider 231 includes a push slider body 2311, a push slider stopper 2312 disposed on one side of the push slider body 2311, and a blocking block 2313 disposed on the push slider stopper 2312.

[0032] The diameter of the push slider limiter 2312 is larger than the diameters of the push slider body 2311 and the blocking block 2313, thereby forming a step that is used to abut one end of the spring 26. The push slider body 2311 and the abutting locking block 233 are fixedly connected together, and one end of the locking rod 232 passes through the push slider body 2311 and is connected to the limiting pin 25, thereby connecting the push slider 231, the locking rod 232, and the abutting locking block 233.

[0033] The locking rod 232 includes a locking rod body 2321 movably connected to the pushing slider 231, a locking rod 2322 disposed at one end of the locking rod body 233, and a collar 2323 disposed at one end of the locking rod body 2321 facing the locking block 233. The locking rod 2322 is vertically connected to the locking rod 2322. The locking rod 2322 is inserted into the guide groove 22 and is restricted from sliding within the guide groove 22, thereby locking or unlocking the pushing assembly 23. The locking rod body 2321 passes through the pushing slider body 2311 in the pushing slider 231, so that the collar 2323 and the locking rod 2322 are separated on either side of the pushing slider body 2311. The collar 2323 is movably sleeved on the limiting pin 25 , so that the locking rod 232 can move between the pushing slider 231 and the guide seat body 213 .

[0034] The guide groove 22 is used to guide the locking rod 232 between the locked and unlocked positions. In the locked position, the fuel tank lid is in the closed state. At this time, the length of the pushing device 20 should be reduced. Therefore, the abutting lock block 233 described below should extend into the pushing device 20 to reduce the overall axial length of the pushing device 20. When the fuel tank lid needs to be opened, the abutting lock block 233 needs to extend out of the pushing device 20. Therefore, it needs to be in the unlocked position to allow the abutting lock block 233 to extend.

[0035] The guide groove 22 includes a locking guide groove 221 , an unlocking guide groove 222 arranged on one side of the locking guide groove 221 , a locking protrusion 223 arranged between the locking guide groove 221 and the unlocking guide groove 222 , and a central axis 224 arranged on the guide seat 21 .

[0036] The central axis 224 is both the central axis of the pushing device 20 and the direction of the reciprocating motion of the pushing assembly 23. The various functional structures of the guide groove 22 are all set with reference to the central axis 224. Figure 5 For reference, the central axis 224 divides the guide slot 22 into left and right sides. For ease of description, the following description will use "left side" or "right side", but it should not constitute a limitation on the invention, and is only for the convenience of explanation.

[0037] See also Figure 5The locking guide groove 221 is used when locking the fuel tank cap and includes a first vertical locking guide groove 2211, a second vertical locking guide groove 2212 connected to one end of the first vertical locking guide groove 2211, a transverse locking guide groove 2213 disposed within the second vertical locking guide groove 2212, and a guide hook 2214 disposed at one end of the transverse locking guide groove 2213. The locking guide grooves 221 are all disposed on the side of the central axis 224 where the locking guide groove 221 is located. The first vertical locking guide groove 2211 is disposed vertically and is used to guide the locking rod 232, described below, into the second vertical locking guide groove 2212. The transverse locking guide groove 2213 is tilted toward the central axis 224 to deflect the locking rod 232 entering from the second vertical locking guide groove 2212 toward the central axis 224. The guide hook 2214 is disposed below the locking protrusion 223 and spaced apart from the locking protrusion 223. When the locking rod 232 reaches the guide hook 2214, the guide hook 2214 blocks the locking rod 232 from moving further. Consequently, the spring 26 forces the locking rod 232 to enter the locking protrusion 223, where it is hooked onto the locking rod 2322 of the locking rod 232, achieving locking.

[0038] The unlocking guide groove 222 is used to unlock the fuel tank cap and includes a first vertical unlocking guide groove 2221, a second vertical unlocking guide groove 2222 connected to one end of the first vertical unlocking guide groove 2221, and a transverse unlocking guide groove 2223 disposed on one side of the second vertical unlocking guide groove 2222. The first vertical unlocking guide groove 2221 and the second vertical unlocking guide groove 2222 form a "V"-shaped structure, and the intersection of the first vertical unlocking guide groove 2221 and the second vertical unlocking guide groove 2222 is disposed on the side of the central axis 224 where the locking guide groove 221 is located. This facilitates guiding the locking rod 2322 of the locking rod 232 into the locking guide groove 221 when the locking rod 232 enters the first vertical unlocking guide groove 2221.

[0039] One end of the transverse unlocking guide groove 2223 is connected to the free end of the guide hook 2214, so that the end of the transverse unlocking guide groove 2223 connected to the free end of the guide hook 2214 is located on the side of the central axis 224 where the locking guide groove 221 is located, and the transverse unlocking guide groove 2223 is inclined toward the side away from the central axis 224, so that when the locking plug 2322 is pressed and moves along the transverse unlocking guide groove 2223, and when it reaches the end of the transverse unlocking guide groove 2223 on the side of the unlocking guide groove 222 of the central axis 224, it may smoothly enter the second vertical unlocking guide groove 2222, and then enter the first vertical unlocking guide groove 2221 under the action of the spring 26, thereby achieving the purpose of unlocking.

[0040] The connection position between the first vertical unlocking guide groove 2221 and the second vertical unlocking guide groove 2222 corresponds to the second vertical locking guide groove 2212, so that the first vertical unlocking guide groove 2221 and the second vertical unlocking guide groove 2222 both guide the locking rod 232 in the pushing assembly 23 to the second vertical locking guide groove 2212.

[0041] The first vertical unlocking guide groove 2211 and the first vertical locking guide groove 2221 are communicated with each other, so that the locking rod 232 in the pushing assembly 23 can move in the first vertical unlocking guide groove 2211 and the first vertical locking guide groove 2221 .

[0042] The transverse locking guide groove 2213 and the transverse unlocking guide groove 2223 are both arranged at an angle, and the height of one end of the transverse unlocking guide groove 2223 facing the transverse locking guide groove 2213 is greater than that of the transverse locking guide groove 2213, so that the connection position between the transverse locking guide groove 2213 and the transverse unlocking guide groove 2223 is stepped, and the connection position between the transverse locking guide groove 2213 and the transverse unlocking guide groove 2223 is arranged on the side of the center axis 224 facing the locking guide groove 221.

[0043] The locking protrusion 223 is a triangular structure as a whole, and includes a locking protrusion body 2231, a locking groove 2232 arranged on the locking protrusion body 2231, a first limiting protrusion 2233 arranged on the locking groove 2232 close to the locking guide groove 221, and a second limiting protrusion 2234 arranged on the locking groove 2232 close to the unlocking guide groove 22.

[0044] The first limiting protrusion 2233 , the second limiting protrusion 2234 and the locking protrusion body 2231 are integrally formed. The first limiting protrusion 2233 and the second limiting protrusion 2234 are located on both sides of the central axis 224 .

[0045] The distance between the first limiting protrusion 2233 and the limiting seat 212 is smaller than the distance between the second limiting protrusion 2234 and the limiting seat 212, that is, the first limiting protrusion 2233 is close to the transverse locking guide groove 2213, so that the locking rod 232 in the pushing assembly 23 is guided into the locking groove 2232 by the first limiting protrusion 2233, and at the same time, it can prevent the locking rod 2322 from entering the locking guide groove 221 when unlocking.

[0046] The locking groove 2232 is arc-shaped, and the maximum arch height of the arc coincides with the central axis 224. Therefore, when the locking rod 2322 is hooked on the locking groove 2232, the length direction of the locking rod 232 coincides with the central axis 224, preventing the locking rod 2322 from being separated from the locking groove 2232.

[0047] The abutting lock block 233 is used to engage with the locking position of the fuel tank cover (not shown) to lock and unlock the fuel tank cover. The abutting lock block 233 rotates synchronously with the sleeve assembly 24 to lock or unlock the fuel tank cover (not shown). The abutting lock block 233 is a prior art and will not be described in detail here.

[0048] like Figure 4 As shown, the sleeve assembly 24 is used to accommodate the pushing device 20, and includes a sleeve body 241, a guide pin 242 provided on the outer wall of the sleeve body 241, and a sleeve limiting hole 243 provided on the outer wall of the sleeve body 241. The sleeve body 241 is fixedly connected to the abutting lock block 233 in the pushing assembly 23, and the two ends of the limiting pin 25 are respectively inserted into the sleeve body 241, so that the sleeve body 241 and the abutting lock block 233 are connected together, so that when the pushing assembly 23 is extended and retracted, the sleeve assembly 24 is synchronously raised and lowered and slid.

[0049] The guide pin 242 is inserted into the spiral guide groove 122, so that when the sleeve assembly 24 is lifted or lowered, the guide pin 242 guides the sleeve body 241 to rotate 90 degrees along the spiral guide groove 122, so that the top locking block 233 can be rotated 90 degrees synchronously, thereby locking or unlocking the top locking block 233.

[0050] The sleeve limiting hole 243 cooperates with the limiting device 30 , so the sleeve limiting hole 243 will be described in detail in conjunction with the limiting device 30 .

[0051] The limit pin 25 is inserted between the sleeve body 241 and the top locking block 233, thereby fixing the sleeve assembly 24 and the pushing assembly 23 into a whole, so that the sleeve assembly 24 and the pushing assembly 23 move synchronously, and in this embodiment, the limit pin 25 passes through the ring 2323 in the locking rod 232, so that when the top locking block 233 is pressed, the locking rod 232 can be driven to move up and down.

[0052] The spring 26 is arranged between the guide seat 21 and the pushing assembly 23, wherein one end of the spring 26 abuts against the limit seat 212, and the other end of the spring 26 abuts against the pushing slider limiter 2312, thereby maintaining the tension between the pushing assembly 23 and the guide seat 21, and the elastic force of the spring 26 assists in unlocking the pushing assembly 23 and the guide seat 21.

[0053] The limiting device 30 includes a driving motor 31 accommodated in the fuel tank lock protective shell 1, an external gear 32 arranged on the driving motor 31, an eccentric disk 33 engaged with the external gear 32, and a blocking cross bar 34 arranged on the eccentric disk 33.

[0054] The drive motor 31 is fixedly housed within the fuel tank lock protective housing 1, and the external gear 32 is disposed on the driving end of the drive motor 31. The drive motor 31 drives the external gear 32 to rotate, and the external gear 32 engages with the eccentric disk 33 to rotate the eccentric disk 33. The drive motor 31 and the external gear 32 are both conventional and will not be described in detail here.

[0055] The eccentric disk 33 includes an eccentric disk body 331, a rotating shaft 332 arranged on the eccentric disk body 331, an annular flange 333 arranged on one side of the eccentric disk body 331 and surrounding the rotating shaft 332, and an internal gear 334 arranged on the side of the eccentric disk body 331 facing away from the annular flange 333.

[0056] The eccentric disk body 331 is a circular rotating disk, and the rotating shaft 332 is provided on the eccentric disk body 331 . In this embodiment, the central axis of the rotating shaft 332 coincides with the central axis of the eccentric disk body 331 , so that the eccentric disk body 331 can rotate.

[0057] In addition, the center axis of the annular flange 333 is spaced apart from the rotating shaft 332, an eccentric wheel is formed between the annular flange 333 and the rotating shaft 332, and the annular flange 333 is connected to the blocking cross bar 34. During the rotation of the annular flange 333, the annular flange 333 can drive the blocking cross bar 34 to extend and retract.

[0058] The inner gear 334 is used to mesh with the outer gear 32 so that the driving motor 31 drives the eccentric disk 33 to rotate. The inner gear 334 is a prior art and will not be described in detail here.

[0059] The blocking crossbar 34 includes a blocking crossbar body 341 and a receiving groove 342 provided on one side of the blocking crossbar body 341 for accommodating the annular flange 333. One end of the blocking crossbar body 341 is inserted into the locking hole 14, and the annular flange 333 is accommodated in the receiving groove 342. When the annular flange 333 rotates, it drives the blocking crossbar 34 to extend and retract.

[0060] The outer gear 32 and the inner gear 334 are meshed with each other, so that when the driving motor 31 drives the outer gear 32 to rotate, the eccentric disk 33 drives the eccentric disk body 331 to rotate with the rotating shaft 332 as the rotation center, and the center axis of the annular flange 333 is spaced apart from the rotating shaft 332, and an eccentric wheel is formed between the annular flange 333 and the rotating shaft 332, so that when the annular flange 333 drives the blocking cross bar 34 to move, the blocking cross bar 34 is extended and retracted.

[0061] When the high-stability fuel tank lock is locked, the user presses down the pushing assembly 23, and the locking rod 232 in the pushing assembly 23 slides along the locking guide groove 221. When the locking rod 232 moves into the transverse locking guide groove 2213, the locking rod 2322 is guided by the transverse locking guide groove 2213 and the first limiting protrusion 2233 to be locked in the locking groove 2232, thereby locking the pushing assembly 23 and the guide seat 21. Since the sleeve assembly 24 is fixedly connected to the pushing assembly 23, and the spiral guide groove 122 is rotated 90 degrees and arranged on the side wall of the pushing installation sleeve 121, when the pushing assembly 23 is pressed down, the guide pin 242 in the sleeve assembly 24 rotates 90 degrees along the spiral guide groove 122, and the pushing assembly 23 and the sleeve assembly 24 rotate 90 degrees synchronously. After the sleeve assembly 24 in the pushing assembly 23 is pressed down into place, the sleeve limiting hole 243 in the sleeve assembly 24 corresponds to the locking hole 14. At this time, the limiting device 30 drives the eccentric disk 33 to rotate, and the annular flange 333 drives the blocking cross bar 34 to be inserted into the sleeve limiting hole 243 to limit the position of the sleeve assembly 24.

[0062] When the high-stability tank lock is unlocked, the limiting device 30 drives the eccentric disc 33 to rotate, and the annular flange 333 drives the blocking cross bar 34 to retract, so that one end of the blocking cross bar 34 is disengaged from the sleeve limiting hole 243. At this time, the user presses down the pushing assembly 23 again, and the locking plug 2322 of the locking rod 232 is separated from the locking groove 2232 in the locking protrusion 223, and the locking rod 232 in the pushing assembly 23 slides along the unlocking guide groove 2223. At the same time, the pushing assembly 23 and the guide seat 21 are acted upon by the spring 26, and the pushing assembly 23 is pushed up by the spring 26, and the pushing assembly 23 synchronously drives the sleeve assembly 24 to rise during the rising process. The guide pin 242 in the sleeve assembly 24 is inserted into the spiral guide groove 122, and the spiral guide groove 122 is rotated 90 degrees and is arranged on the side wall of the pushing installation sleeve 121, so that the guide pin 242 in the sleeve assembly 24 rotates 90 degrees along the spiral guide groove 122, thereby driving the pushing assembly 23 to rotate 90 degrees, thereby completing the unlocking purpose.

[0063] Compared to the prior art, the fuel tank lock provided by the present invention has a high stability. The locking rod 232 in the pushing assembly 23 of the pushing device 20 slides along the guide groove 22 within the locking rod 232, thereby locking or unlocking the pushing assembly 23. The guide groove 22 includes a locking guide groove 221, an unlocking guide groove 222 disposed on one side of the locking guide groove 221, and a locking protrusion 223 disposed between the locking guide groove 221 and the unlocking guide groove 222. A second vertical locking guide groove 2212 in the locking guide groove 221 is connected to one end of the first vertical locking guide groove 2211 and is tilted away from the unlocking guide groove 222. The transverse locking guide groove 2213 is tilted toward the central axis 224, thereby deflecting the locking rod 232 toward the central axis 224 upon entering the second vertical locking guide groove 2212. The guide hook 2214 is arranged below the locking protrusion 223 and is spaced apart from the locking protrusion 223. When the locking rod 232 reaches the guide hook 2214, the locking rod 232 cannot continue to move due to the obstruction of the guide hook 2214, and will enter the locking protrusion 223 under the action of the spring 26, and be hooked by the locking protrusion 223 to the locking rod 2322 of the locking rod 232, thereby achieving the purpose of locking. The intersection of the first vertical unlocking guide groove 2221 and the second vertical unlocking guide groove 2222 is located on the side of the central axis 224 where the locking guide groove 221 is located, and the connection position of the first vertical unlocking guide groove 2221 and the second vertical unlocking guide groove 2222 corresponds to the second vertical locking guide groove 2212, so that the first vertical unlocking guide groove 2221 and the second vertical unlocking guide groove 2222 both guide the locking rod 232 in the pushing assembly 23 to the second vertical locking guide groove 2212. Moreover, the second vertical locking guide groove 2212 is connected to one end of the first vertical locking guide groove 2211 and is inclined, so that the locking rod 232 in the pushing assembly 23 can be unlocked or locked when sliding to the first vertical unlocking guide groove 2211 or the transverse locking guide groove 2213.One end of the transverse unlocking guide groove 2223 is connected to the free end of the guide hook 2214, so that the end of the transverse unlocking guide groove 2223 connected to the free end of the guide hook 2214 is located on the side of the central axis 224 where the locking guide groove 221 is located, and the transverse unlocking guide groove 2223 is inclined toward the side away from the central axis 224. When the locking rod 2322 is pressed and moves along the transverse unlocking guide groove 2223, and when it reaches the end of the transverse unlocking guide groove 2223 on the side of the unlocking guide groove 222 of the central axis 224, it may smoothly enter the second vertical unlocking guide groove 2222, and then enter the first vertical unlocking guide groove 2221 under the action of the spring 26, thereby achieving the purpose of unlocking. The locking groove 2232 in the locking protrusion 223 is arranged on the central axis 224, and the locking groove 2232 corresponds to the transverse unlocking guide groove 2223. The first limiting protrusion 2233 and the second limiting protrusion 2234 face one end of the fixing seat 211. The distance between the first limiting protrusion 2233 and the limiting seat 212 is smaller than the distance between the second limiting protrusion 2234 and the limiting seat 212. The transverse locking guide groove 2213 faces one end of the transverse unlocking guide groove 2223 and corresponds to the first limiting protrusion 2233, so as to guide the locking rod 232 in the pushing assembly 23 to slide onto the first limiting protrusion 2233 through the transverse locking guide groove 2213, so that the locking rod 232 is accommodated in the locking groove 2232 to achieve locking. It can be seen from this that the high-stability fuel tank lock improves the stability of the locking rod 232 in the guide groove 22, thereby improving the safety of the product.

[0064] The above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements or improvements within the spirit of the present invention are included in the scope of the claims of the present invention.

Claims

1. A high-stability fuel tank lock, characterized by: The high-stability fuel tank lock includes a mounting bracket, a pushing device arranged in the mounting bracket, the pushing device includes a guide seat arranged on the mounting bracket, a guide groove arranged on the guide seat, a pushing assembly arranged on the guide seat, a sleeve assembly arranged on the pushing assembly, a limit pin inserted between the pushing assembly and the sleeve assembly, and a spring arranged between the guide seat and the pushing assembly, the guide groove includes a locking guide groove, an unlocking guide groove arranged on one side of the locking guide groove, a locking protrusion arranged between the locking guide groove and the unlocking guide groove, and a central axis arranged on the guide seat, the pushing assembly The locking lever is fixedly mounted on the guide rail and is adapted to engage the locking lever of the locking mechanism, wherein the locking lever is adapted to engage the locking lever of the locking mechanism and engage the locking lever of the locking mechanism. The cam is secured to a position adjacent to the first locking guide slot and is secured to a position adjacent to the second locking guide slot when the cam is in a locked position. The intersection of the second vertical unlocking guide groove is arranged on the side of the locking guide groove of the central axis, one end of the horizontal unlocking guide groove is connected to the free end of the guide hook, and one end of the horizontal unlocking guide groove and the free end of the guide hook is located on the side of the locking guide groove of the central axis, and the connection position of the first vertical unlocking guide groove and the second vertical unlocking guide groove corresponds to the second vertical locking guide groove. The locking protrusion includes a locking protrusion body, a locking groove arranged on the locking protrusion body, a first limiting protrusion arranged on the locking groove near the locking guide groove side, and a second limiting protrusion arranged on the locking groove near the unlocking guide groove side.The locking groove is provided on the central axis, and the locking groove corresponds to the transverse unlocking guide groove. The first limiting protrusion and the second limiting protrusion face one end of the fixing seat. The transverse locking guide groove faces one end of the transverse unlocking guide groove and corresponds to the first limiting protrusion, so as to guide the locking rod in the pushing assembly to slide onto the first limiting protrusion through the transverse locking guide groove.

2. The high-stability fuel tank lock according to claim 1, characterized in that: The mounting frame includes a mounting frame body, a pushing mounting portion arranged on the mounting frame body and used to install the pushing device, an upper limit mounting portion arranged on the mounting frame body, and a locking hole arranged between the pushing mounting portion and the limit mounting portion.

3. The high-stability fuel tank lock according to claim 2, characterized in that: The push-mounting portion includes a push-mounting sleeve and a spiral guide groove arranged on the side wall of the push-mounting sleeve. The spiral guide groove is rotated 90 degrees and arranged on the side wall of the push-mounting sleeve.

4. The high-stability fuel tank lock according to claim 2, characterized in that: The position limiting mounting portion is used to install the position limiting device, and the position limiting mounting portion includes a mounting protrusion arranged on the mounting frame body, a rotating shaft mounting hole arranged on the mounting protrusion, and a mounting through hole arranged on the mounting frame body.

5. The high-stability fuel tank lock according to claim 4, characterized in that: The high-stability fuel tank lock also includes a limiting device arranged on one side of the pushing device and used to limit the position of the pushing device. The limiting device includes a driving motor, an external gear arranged on the driving motor, an eccentric disk engaged with the external gear, and a blocking cross bar arranged on the eccentric disk.

6. The high-stability fuel tank lock according to claim 5, characterized in that: The eccentric disk includes an eccentric disk body, a rotating shaft arranged on the eccentric disk body, an annular flange arranged on one side of the eccentric disk body and surrounding the rotating shaft, and an internal gear arranged on the side of the eccentric disk body facing away from the annular flange. The center axis of the annular flange is spaced apart from the rotating shaft, the rotating shaft is inserted into the rotating shaft mounting hole, and the external gear is accommodated in the mounting through hole and meshes with the internal gear.

7. The high-stability fuel tank lock according to claim 5, characterized in that: The blocking cross bar includes a blocking cross bar body, a receiving groove arranged on one side of the blocking cross bar body and used for receiving the annular flange, and one end of the blocking cross bar body is inserted into the locking hole.

8. The high-stability fuel tank lock according to claim 1, characterized in that: The sleeve assembly includes a sleeve body, a guide pin arranged on the outer side wall of the sleeve body, and a sleeve limiting hole arranged on the outer side wall of the sleeve body. The sleeve body is fixedly connected to the top locking block in the pushing assembly, and the guide pin is inserted in the spiral guide groove.

9. The high-stability fuel tank lock according to claim 1, characterized in that: The guide seat includes a fixed seat fixedly connected to the pushing mounting portion, a limiting seat arranged on the fixed seat, and a guide seat body arranged on the limiting seat. The diameters of the fixed seat and the guide seat body are both smaller than the diameter of the limiting seat, and the distance between the first limiting protrusion and the limiting seat is smaller than the distance between the second limiting protrusion and the limiting seat.

10. The high-stability fuel tank lock according to claim 9, characterized in that: The pushing slider includes a pushing slider body, a pushing slider limiter arranged on one side of the pushing slider body, and a blocking block arranged on the pushing slider limiter, the diameter of the pushing slider limiter is larger than the diameter of the pushing slider body and the blocking block, the spring is arranged between the guide seat and the pushing assembly, wherein one end of the spring abuts against the limiting seat, and the other end of the spring abuts against the pushing slider limiter.

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